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| 2. |
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| 3. |
- Abbas, Zareen, 1962, et al.
(författare)
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Synthesis, characterization and particle size distribution of TiO2 colloidal nanoparticles
- 2011
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Ingår i: Colloids and Surfaces A: Physicochemical and Engineering Aspects. - : Elsevier BV. - 0927-7757. ; 384:1-3, s. 254-261
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Tidskriftsartikel (refereegranskat)abstract
- Nanoparticles of controlled size, well defined shape, pure phase and of clean surfaces are ideal model systems to investigate surface/interfacial reactions. In this study we have explored the possibility of synthesizing TiO2 nanoparticles in the size range of 7–20 nm under well controlled experimental conditions. A simple method based on the hydrolysis of TiCl4 was used to obtain particles having surfaces free from organics. Stable dispersions of TiO2 nanoparticles of various sizes were obtained by optimizing the reaction/dialysis time and temperature. The synthesized TiO2 particles were found to be predominantly of anatase phase and narrow particle size distributions were obtained. The TiO2 particles were characterized with respect to their phase, size and shape by X-ray diffraction (XRD) and transmission electron microscopy (TEM), respectively. Particle size distribution in a colloidal dispersion was obtained by the electrospray scanning mobility particle sizer (ES-SMPS) method and compared with an average particle size determined from dynamic light scattering (DLS). The average particle sizes obtained by the DLS and ES-SMPS methods were in good agreement, while a primary particle size of 4 nm was found in X-ray diffraction irrespective of the particle size in solution. Early stages of the nucleation process were monitored by the ES-SMPS method. These results show that small particles of 4–5 nm are initially formed and it is highly likely that large particles are formed due to aggregation of primary particles.
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| 4. |
- Andersson, Kristina, et al.
(författare)
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Challenges and opportunities with the EU Taxonomy Regulation– with focus on chemical safety and usage in complex products
- 2023
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The use of Policy Lab processes has been growing in Sweden and other countries to accelerate the adaptation of regulations to emerging technologies. Policy Lab facilitates active collaboration between relevant authorities, companies, and stakeholders through interactive and iterative methods based on Design Thinking principles. This approach bridges the gap between the legislative domain responsible for developing regulatory frameworks and the innovative companies that create solutions for emerging markets using new technologies and opportunities. In our study, we applied Policy Lab processes to the EU Taxonomy Regulation to identify challenges and opportunities related to chemical safety and usage for manufacturers of complex products. The EU Taxonomy Regulation, along with its delegated acts, represent a serious effort to establish standardized sustainability reporting within EU. However, it is still in its early stages and lacks maturity. Moreover, certain ambiguities within the regulation currently prevent a comprehensive comparison of companies due to the development of other legislations. Addressing these gaps depends on the future development of, for example, REACH. Our conclusion is that the EU Taxonomy Regulation is part of a larger “movement” that reflects the policymakers’ intentions. This intention also includes increased data sharing at a significantly different level compared to current practices. In the long run, the shift will enable authorities to access the data and develop new legislations. Our specific focus was on the objective of pollution prevention and control regarding the use and presence of hazardous substances listed in Appendix C of the EU Taxonomy Regulation. According to Appendix C, activities must not lead to the manufacture, placing on the market or use of listed substances, whether on their own, in mixture or in articles. Regarding listed substances, reference is made to existing EU legislation that regulates hazardous substances within the EU. The most challenging aspect in Appendix C is point (g), which aims to identify substances, whether alone, in mixtures, or in articles, that meet the criteria set out in Article 57 of REACH but are not yet included in the Candidate list. Our workshops, interviews, and literature review confirmed that the main challenge in meeting the criteria of Appendix C, specifically point (g) is the need to enhance transparency and traceability throughout supply chains. Overcoming these challenges requires addressing barriers, such as the lack of a harmonized regulatory framework across the value chain, the need for faster identification and restriction of hazardous substances, and the reinforcement of stronger enforcement measures. The enabling of full declaration of the hazardous properties and functions of the substances, while considering the balance between information disclosure and protecting trade secrets, would reduce the need for extensive tracking of substance of very high concern along the value chain. To improve communication along the value chain and identify data gaps while protecting trade secrets, workshop participants have proposed the use of a user-friendly interface based on traffic light scenario. This interface would serve as a filter mechanism, allowing product manufacturers to establish specific criteria for material suppliers to respond to. The objective is to enhance communication, establish criteria, and effectively identify data gaps. While the SCIP database ensures accessibility of information on articles containing substances from the Candidate List above 0.1 w/w%, it is limited to hazardous substances on that list. This means that hazardous substances not listed in the Candidate List may not be covered by the database. The EU Commission has proposed the implementation of a digital product passport to enhance information sharing about products and their supply chain, including substances of concern. Our study is conducted under the Mistra SafeChem program, where screening tools for hazard and exposure assessment of substances are currently being developed. These tools aim to provide screening data for direct decision-making based on the Defined Approach (DA). These screening tools have the potential to contribute to filling data gaps during the early design phases of complex products, particularly when screening for multiple material alternatives.
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| 5. |
- Andlid, Thomas, 1963, et al.
(författare)
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Folate and phytase produced by yeasts
- 2010
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Ingår i: Proceedings of the 23rd VH-Yeast Conference April 26-27, 2010 in Vienna, Advances in Science and Technique of Baker's Yeast. ; , s. 79-88
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Konferensbidrag (refereegranskat)
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| 6. |
- Barup, Kerstin, et al.
(författare)
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Multi-disciplinary lidar applications
- 2010
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Ingår i: Laser Applications to Chemical, Security and Environmental Analysis, LACSEA 2010. - 2162-2701. - 9781557528803
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Konferensbidrag (refereegranskat)abstract
- Lidar is a powerful technique normally associated with atmospheric monitoring. However, lidar techniques, also of the laser-induced fluorescence and laser-induced breakdown spectroscopy varieties, provide many new possibilities in unconventional fields including cultural heritage and ecological applications.
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| 7. |
- Berg, Jenny, et al.
(författare)
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Economic Evaluation of Elective Cesarean Section on Maternal Request Compared With Planned Vaginal Birth-Application to Swedish Setting Using National Registry Data
- 2023
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Ingår i: Value in Health. - : Elsevier BV. - 1098-3015 .- 1524-4733. ; 26:5, s. 639-648
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: There is a lack of consensus around the definition of delivery by cesarean section (CS) on maternal request, and clinical practice varies across and within countries. Previous economic evaluations have focused on specific populations and selected complications. Our aim was to evaluate the cost-effectiveness of CS on maternal request compared with planned vaginal birth in a Swedish context, based on a systematic review of benefits and drawbacks and national registry data on costs.Methods: We used the results from a systematic literature review of somatic risks for long-and short-term complications for mother and child, in which certainty was rated low, moderate, or high using the Grading of Recommendations Assessment, Development and Evaluation. Swedish national registry data were used for healthcare costs of delivery and complications. Utilities for long-term complications were based on a focused literature review. We constructed a decision tree and conducted separate analyses for primi-and multiparous women. Costs and effects were discounted by 3% and the time horizon was varied between 1 and 20 years.Results: Planned vaginal birth leads to lower healthcare costs and somatic health gains compared with elective CS without medical indication over up to 20 years. Although there is uncertainty around, for example, quality-of-life effects, results remain stable across sensitivity analyses.Conclusions: CS on maternal request leads to increased hospitalization costs in a Swedish setting, taking into account short -and long-term consequences for both mother and child. Future research needs to study the psychological consequences related to different delivery methods, costs in outpatient care, and productivity losses.
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| 8. |
- Bolk, Jenny, et al.
(författare)
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National population-based cohort study found that visual-motor integration was commonly affected in extremely preterm born children at six-and-a-half years
- 2018
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Ingår i: Acta Paediatrica. - : WILEY. - 0803-5253 .- 1651-2227. ; 107:5, s. 831-837
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Tidskriftsartikel (refereegranskat)abstract
- Aim: This study aimed to explain the relationship between visual-motor integration (VMI) abilities and extremely preterm (EPT) birth, by exploring the influence of perinatal variables, cognition, manual dexterity and ophthalmological outcomes. Methods: This was part of the population-based national Extremely Preterm Infant Study in Sweden (EXPRESS) study. We studied 355 children, born at a gestational age of <27 weeks from April 2004 to March 2007, and 364 term-born controls. At six-and-a-half years of age, we assessed VMI, cognitive function, motor skills and vision. VMI impairment was classified as <-1 standard deviation (SD). Results: The mean (SD) VMI score was 87 (+/- 12) in preterm children compared to 98 (+/- 11) in controls (p < 0.001). VMI impairment was present in 55% of preterm infants and in 78% of children born at 22-23 weeks. Male sex and postnatal steroids showed a weak association with poorer visual-motor performance, whereas low manual dexterity and cognitive function showed a stronger association. Conclusion: Poor VMI performance was common in this EXPRESS cohort of children born EPT. Its strong association to cognition and manual dexterity confirms that all of these factors need to be taken into account when evaluating risks in preterm born children.
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| 9. |
- Bondjers, Cecilia, 1974, et al.
(författare)
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Microarray analysis of blood microvessels from PDGF-B and PDGF-Rbeta mutant mice identifies novel markers for brain pericytes.
- 2006
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Ingår i: The FASEB journal : official publication of the Federation of American Societies for Experimental Biology. - : Wiley. - 1530-6860. ; 20:10, s. 1703-5
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Tidskriftsartikel (refereegranskat)abstract
- Normal blood microvessels are lined by pericytes, which contribute to microvessel development and stability through mechanisms that are poorly understood. Pericyte deficiency has been implicated in the pathogenesis of microvascular abnormalities associated with diabetes and tumors. However, the unambiguous identification of pericytes is still a problem because of cellular heterogeneity and few available molecular markers. Here we describe an approach to identify pericyte markers based on transcription profiling of pericyte-deficient brain microvessels isolated from platelet-derived growth factor (PDGF-B)-/- and PDGF beta receptor (PDGFRbeta)-/- mouse mutants. The approach was validated by the identification of known pericyte markers among the most down-regulated genes in PDGF-B-/- and PDGFRbeta-/- microvessels. Of candidates for novel pericyte markers, we selected ATP-sensitive potassium-channel Kir6.1 (also known as Kcnj8) and sulfonylurea receptor 2, (SUR2, also known as Abcc9), both part of the same channel complex, as well as delta homologue 1 (DLK1) for in situ hybridization, which demonstrated their specific expression in brain pericytes of mouse embryos. We also show that Kir6.1 is highly expressed in pericytes in brain but undetectable in pericytes in skin and heart. The three new brain pericyte markers are signaling molecules implicated in ion transport and intercellular signaling, potentially opening new windows on pericyte function in brain microvessels.
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| 10. |
- Ericson, Jenny, et al.
(författare)
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Breastfeeding and risk for ceasing in mothers of preterm infants - long-term follow-up
- 2018
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Ingår i: Maternal and Child Nutrition. - : Wiley. - 1740-8695 .- 1740-8709. ; 14:4
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Tidskriftsartikel (refereegranskat)abstract
- Breastfeeding is challenging for mothers of preterm infants. The aim of this paper is to describe risk factors for ceasing breastfeeding and methods of feeding until 12 months postnatal age in mothers who breastfed their preterm infants at discharge from neonatal intensive care units (NICUs). The data come from a randomised controlled trial, which evaluated the effectiveness on exclusive breastfeeding at 8 weeks of proactive telephone support compared with reactive support offered to mothers of preterm infants following discharge from NICU. Six NICUs across Sweden randomised a total of 493 mothers. We used regression and survival analyses to assess the risk factors for ceasing breastfeeding and the long-term outcomes of the intervention. The results showed that 305 (64%) of the infants were breastfed at 6 months and 49 (21%) at 12 months. Partial breastfeeding at discharge, low maternal educational level, and longer length of stay in the NICU increased the risk for ceasing breastfeeding during the first 12 months. Furthermore, the Kaplan-Meier analysis showed that the proportion of mothers who ceased breastfeeding did not differ between the intervention (n = 231) and controls (n = 262) during the first 12 months (log-rank test p = .68). No difference was found between groups on method of feeding. More than 85% of the infants were fed directly at the breast. These findings provide important insights for health professionals who are supporting mothers of preterm infants to breastfeed long term.Registered in www.clinicaltrials.gov (NCT01806480).
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| 11. |
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| 12. |
- Ericson, Jenny, et al.
(författare)
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Breastfeeding duration in preterm infants and the effects of a proactive telephone support: a randomized controlled trial
- 2018
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Konferensbidrag (refereegranskat)abstract
- IntroductionThe first months at home may be troublesome for mothers of preterm infants (< 37 gestational weeks) due to lack of support and thereby an increased risk for ceasing breastfeeding (Kair, Flaherman, Newby, & Colaizy, 2015; Niela-Vilen, Axelin, Melender, & Salantera, 2015). Breastfeeding prevalence in preterm infants is lower than in term infants and decreases during the first months at home (Akerstrom, Asplund, & Norman, 2007; Flacking, Nyqvist, Ewald, & Wallin, 2003). The aim of this trial was to evaluate the effects of a proactive breastfeeding telephone support to mothers of preterm infants on breastfeeding, method of feeding and to describe breastfeeding duration and risks for ceasing breastfeeding up to one year of infant age. MethodThis is a multicentre randomized controlled trial with six neonatal units in Sweden participated. At each unit a breastfeeding support team, BST (10 staff/unit) recruited, randomized and delivered the telephone support to eligible and participating mothers. The intervention was a proactive telephone call initiated by the BST day 1-14 after discharge from the neonatal unit. In the control group, the mothers received a telephone number to the BST if they wanted to call and ask or talk about anything. The outcomes reported were breastfeeding, method of feeding, duration of and risks for ceasing breastfeeding. All researchers were blind to group allocation throughout the study period. ResultsIn total 493 mothers were randomized. There were no statistical significant differences between intervention (n=231) and control (n=262) group on breastfeeding, at discharge (OR 0.70, 95% CI 0.44-1.12, p=0.09), eight weeks after discharge (OR 1.12, 95% CI 0.75-1.69, p=0.45), six months (OR 1.21, 95% CI 0.78-1.88, p=0.29) and 12 months (OR 0.87, 95% CI 0.42-1.79, p=0.52) of infant age. Not either on method of feeding. Most infants received human milk directly at the breast; few infants received human milk by bottle, cup or tube feeding. At discharge, eight weeks after discharge and six months of infant age 82%, 58% and 23% of the infants were exclusively breastfed respectively. At 12 months of infant age, 21% were partially breastfed. Partial breastfeeding at discharge (HR 1.81, 95%CI 1.35-2.41, p=<0.001) and secondary school or lower maternal educational level (HR 1.42, 95%CI 1.13-1.79, p=0.003) increased the risk for ceasing breastfeeding during the infants first year of life. A shorter length of stay in weeks reduced the risk of ceasing breastfeeding during the infants first year of life (HR 0.96, 95% CI 0.92-0.99, p=0.021). ConclusionA two-week daily proactive telephone breastfeeding support did not affect exclusive breastfeeding and method of feeding during the infants first year of life. Few infants received human milk by other method than at breast-feeding. However, partial breastfeeding at discharge from the neonatal unit, secondary school or lower maternal educational level and longer hospital stay significantly increased the risk for ceasing breastfeeding during the infants first year of life. The study gives a unique long-term follow-up on breastfeeding in preterm infants.
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| 13. |
- Ericson, Jenny, 1976-
(författare)
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Breastfeeding in mothers of preterm infants : Prevalence and effects of support
- 2018
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The overall aim of this thesis was to describe the prevalence of breastfeeding in preterm infants and to evaluate the effectiveness and mother’s experiences of proactive person-centred telephone support after discharge. Furthermore, to describe the duration of breastfeeding and risks of ceasing breastfeeding up to 12 months. The first study, a register study with data from the Swedish Neonatal Quality register (SNQ), included breastfeeding data at discharge from 29 445 preterm infants born from 2004-2013. The results demonstrated that the prevalence of exclusive breastfeeding among preterm infants in Sweden decreased during the study period, especially among extremely preterm infants (<28 weeks). We also performed a multicentre randomised controlled trial (RCT) of 493 breastfeeding mothers of preterm infants discharged from six neonatal units in Sweden. The intervention consisted of a proactive breastfeeding telephone support system in which a breastfeeding support team called the mothers once everyday up to 14 days after discharge. The control group received reactive support; the mothers were invited to call the breastfeeding support team if they wanted to talk or ask any questions (i.e., usual care).The RCT demonstrated that the intervention did not affect exclusive breastfeeding at eight weeks after discharge (primary outcome) or up to 12 months. The proactive support did not affect maternal breastfeeding satisfaction, attachment, quality of life or method of feeding (secondary outcomes). However, parental stress was significantly reduced in mothers in the intervention group. Mothers in the intervention group were significantly more satisfied and involved in the support and felt empowered compared with mothers in the control group, who experienced reactive support as dual. Further findings showed that a lower maternal educational level, partial breastfeeding at discharge and longer stay in the neonatal unit increased the risk of ceasing breastfeeding during the first 12 months of postnatal age. In conclusion, the trend for exclusive breastfeeding at discharge in preterm infants is declining, which necessitates concern. The evaluated intervention of telephone support did not affect breastfeeding, in the short-or long-term. However, maternal stress was reduced and mothers were significantly more satisfied with the proactive support and felt empowered by the support.
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| 14. |
- Ericson, Jenny, et al.
(författare)
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Changes in the prevalence of breast feeding in preterm infants discharged from neonatal units : a register study over 10 years
- 2016
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Ingår i: BMJ Open. - London, United Kingdom : BMJ Publishing Group Ltd. - 2044-6055. ; 6:12
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Tidskriftsartikel (refereegranskat)abstract
- Objective: There are indications that the prevalence of exclusively breastfed preterm infants is decreasing in Sweden. The objective was to investigate trends in exclusive breast feeding at discharge from Swedish neonatal units and associated factors in preterm infants.Design, setting and participants: This is a register study with data from the Swedish Neonatal Quality Register. Data from 29 445 preterm infants (gestational age (GA) <37 weeks) who were born during the period 2004–2013 were retrieved. Data included maternal, perinatal and neonatal characteristics. Data were analysed for the whole population as well as for 3 GA groups.Results: From 2004 to 2013, the prevalence of exclusive breast feeding decreased, in extremely preterm (GA 22–27 weeks) from 55% to 16%, in very preterm (GA 28–31 weeks) from 41% to 34% and in moderately preterm infants (GA 32–36 weeks) from 64% to 49%. The decline was statistically significant (p<0.001) in all 3 GA groups. This decline remained significant when adjustments were made for factors negatively associated with exclusive breast feeding andwhich became more prevalent during the study period, that is, small for GA (all groups) and maternal mental illness (very preterm and moderately preterm infants).Conclusions: In the past 10 years, Sweden has experienced a lower rate of exclusive breast feeding in preterm infants, especially in extremely preterm infants. The factors analysed in this study explain only a small proportion of this decline. The decline in exclusive breast feeding at discharge from neonatal units raises concern and present challenges to the units to support and promote breast feeding.
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| 15. |
- Ericson, Jenny, et al.
(författare)
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Decrease in Breast Milk intake in Preterm Infants Discharged from Swedish Neonatal Units 2004-2013
- 2015
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Konferensbidrag (refereegranskat)abstract
- Objective: Sweden is traditionally regarded as a pro-breastfeeding culture with high rates of breastfeeding. The objective was to describe breast milk intake in preterm infants at discharge from neonatal units during 2004-2013 and to describe potential influencing factors for not receiving breast milk at discharge.Method: This study is a registry study with data collected from the Swedish Neonatal Quality Register (SNQ). 29.433 preterm infants who had information about breast milk intake at discharge, in the register, were included. Results: There is a decrease in exclusive breastfeeding from 59 % in 2004 to 45 % in 2013. Among extremely preterm infants (n=1931), the rate of any breastfeeding decreased from 73 % to 55 %, in very preterm infants (n=4587) from 81 % to 75 % and in moderately preterm infants (n=22.915) from 92 % to 89 %, during the study period. The adjusted odds ratios for not receiving breast milk at discharge were; gestational age 2.2 (2.0-2.4), multiple births 2.1 (1.9-2.3), gestational diabetes 2.1 (1.7-2.7), mothers’ mental health 2.1 (1.8-2.6), cesarean section 1.8 (1.7-2.0), mothers’ health 1.7 (1.6-1.9), ventilator treatment 1.5 (1.3-1.7), CPAP treatment 1.3 (1.1-1.4), small for age 1.2 (1.1-1.4) and neonatal illness 1.2 (1.0-1.4)Conclusions: Breast milk intake at discharge from hospital has decreased among preterm infants in Sweden from 2004 to 2013. Gestational age, multiple births, and mothers’ health were the strongest risk factors for not receiving breast milk at discharge. This negative trend raises concern, and presents challenges to neonatal units to support and promote increased breast milk intake.
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| 16. |
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| 17. |
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| 18. |
- Ericson, Jenny, et al.
(författare)
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Proactive telephone support provided to breastfeeding mothers of preterm infants after discharge : a randomised controlled trial
- 2018
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Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 107:5, s. 791-798
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Tidskriftsartikel (refereegranskat)abstract
- AIM: The aim was to evaluate the effectiveness of proactive telephone support provided to breastfeeding mothers of preterm infants after discharge from neonatal intensive care units (NICU).METHODS: Between March 2013 and December 2015, a randomised controlled trial was conducted at six NICUs across Sweden. At each NICU, a breastfeeding support team recruited, randomised and delivered the support to participating mothers. The intervention group received a daily proactive telephone call up to 14 days after discharge from the support team. The control group could initiate telephone contact themselves. Primary outcome was exclusive breastfeeding eight weeks after discharge. Secondary outcomes were maternal satisfaction with breastfeeding, attachment, quality of life and parental stress.RESULTS: In total, 493 mothers were randomised, 231 to intervention group and 262 to control group. There were no differences between the groups for exclusive breastfeeding, odds ratio 0.96, 95% CI 0.66-1.38, nor for maternal satisfaction with breastfeeding, attachment or quality of life. The intervention group reported significantly less parental stress than the controls, t=2.44, 95% CI 0.03-0.23, effect size d=0.26.CONCLUSION: In this trial, proactive telephone support was not associated with increased exclusive breastfeeding prevalence eight weeks following discharge. However, intervention group mothers showed significantly lower parental stress. This article is protected by copyright. All rights reserved.
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| 19. |
- Ericson, Jenny, et al.
(författare)
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Risk Factors for Not Breastfeeding at Discharge in Mothers of Preterm Infants
- 2016
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Konferensbidrag (refereegranskat)abstract
- Background: Breastfeeding has nutritional, cognitive and immunological advantages compared to formula feeding1. Breastfeeding rates among preterm infants are lower than in term infants2. The aim was to investigate risk factors for not breastfeeding at discharge in mothers of preterm infants.Method: In this registry study, data on maternal and infant health were obtained from the Swedish Neonatal Quality Register (SNQ). The study included data on 29.445 preterm infants (<37 gestational weeks, gw) and their mothers who were discharged to home and where information on breastfeeding was available 2004-2013.Results: During the study period (2004-2013), there was a statistical significant increase in the proportion of mothers with a notification of any illness (15% to 29%), mental illness (2% to 6%), administration of antenatal corticosteroids (31% to 34%) and infants born small for age (4% to 9%). Factors that had a statistical significant adjusted odds ratios for not breastfeeding at discharge were; notification of any illness in mother 1.7 (1.5-1.8), mental illness 1.9 (1.6-2.2), gestational diabetes 1.8 (1.4-2.2), administration of antenatal corticosteroids 1.1 (1.0-1.2), cesarean sectio 1.6 (1.5-1.8), multiple births 1.3 (1.2-1.4), infants gestational week at birth: 22-27 gw 5.6 (4.8-6.5), 28-31 gw 2.6 (2.3-3.0) (gw 32-36 ref.), small for age 1.2 (1.1-1.4), and neonatal illness 1.4 (1.2-1.6).Conclusions: The strongest risk factors for not breastfeeding at discharge were low gestational weeks at birth, maternal illnesses and caesarean sectio. These findings are important and present challenges to health care to improve breastfeeding outcomes in these vulnerable groups of mothers and infants. References: 1. Victora CG, Bahl R, Barros AJD, França GVA, Horton S, Krasevec J, et al. Breastfeeding in the 21st century: epidemiology, mechanisms, and lifelong effect. The Lancet.387(10017):475-490. 2. Flacking R, Nyqvist KH, Ewald U. Effects of socioeconomic status on breastfeeding duration in mothers of preterm and term infants. European journal of public health. 2007;17(6):579-584.
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| 20. |
- Ericson, Jenny, et al.
(författare)
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The effectiveness of proactive telephone support provided to breastfeeding mothers of preterm infants : study protocol for a randomized controlled trial
- 2013
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Ingår i: BMC Pediatrics. - : Springer Science and Business Media LLC. - 1471-2431. ; 13
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Tidskriftsartikel (refereegranskat)abstract
- Background: Although breast milk has numerous benefits for infants' development, with greater effects in those born preterm (at < 37 gestational weeks), mothers of preterm infants have shorter breastfeeding duration than mothers of term infants. One of the explanations proposed is the difficulties in the transition from a Neonatal Intensive Care Unit (NICU) to the home environment. A person-centred proactive telephone support intervention after discharge from NICU is expected to promote mothers' sense of trust in their own capacity and thereby facilitate breastfeeding.Methods/design: A multicentre randomized controlled trial has been designed to evaluate the effectiveness and cost-effectiveness of person-centred proactive telephone support on breastfeeding outcomes for mothers of preterm infants. Participating mothers will be randomized to either an intervention group or control group. In the intervention group person-centred proactive telephone support will be provided, in which the support team phones the mother daily for up to 14 days after hospital discharge. In the control group, mothers are offered a person-centred reactive support where mothers can phone the breastfeeding support team up to day 14 after hospital discharge. The intervention group will also be offered the same reactive telephone support as the control group. A stratified block randomization will be used; group allocation will be by high or low socioeconomic status and by NICU. Recruitment will be performed continuously until 1116 mothers (I: 558 C: 558) have been included. Primary outcome: proportion of mothers exclusively breastfeeding at eight weeks after discharge.Secondary outcomes: proportion of breastfeeding (exclusive, partial, none and method of feeding), mothers satisfaction with breastfeeding, attachment, stress and quality of life in mothers/partners at eight weeks after hospital discharge and at six months postnatal age. Data will be collected by researchers blind to group allocation for the primary outcome. A qualitative evaluation of experiences of receiving/providing the intervention will also be undertaken with mothers and staff.Discussion: This paper presents the rationale, study design and protocol for a RCT providing person-centred proactive telephone support to mothers of preterm infants. Furthermore, with a health economic evaluation, the cost-effectiveness of the intervention will be assessed. Trial registration: NCT01806480
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| 21. |
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| 22. |
- Ericsson, Jenny, et al.
(författare)
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Decrease in Breast Milk intake in Preterm Infants Discharged from Swedish Neonatal Units 2004-2013
- 2014
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Konferensbidrag (refereegranskat)abstract
- Objective: Sweden is regarded as a very pro-breastfeeding culture with high rates of breastfeeding at discharge from hospital and during infancy. Among preterm infants in Sweden, the rates of breastfeeding at discharge from hospital were reported to be more than 90 % in the beginning of the 21 st century (Akerstrom 2007, Flacking 2003) However, lately there have been indications that breastfeeding incidence at discharge is decreasing among preterm infants cared for in Neonatal Units in Sweden. Thus, the objective was to describe breastfeeding incidence in preterm infants at discharge from neonatal units during the period 2004-2013.Method: This study was a registry study with data collected from the Swedish Neonatal Quality Register (SNQ), a national registry of all infants cared for in almost all Neonatal Units in Sweden. This study included 29.445 preterm infants (<37 gestational weeks, gw) who were discharged to home and where information on breastfeeding was available.Results: Preliminary findings indicated a decrease in exclusive breastfeeding from 57 % in 2004 to 30 % in 2013. The proportion of partially breastfed infants increased from 30 % in 2004 to 52 % in 2013. Although the proportion of partially breastfed infants increased, fewer infants were breastfed in 2013 (82 %) compared to 2004 (87 %). Among extremely preterm (<28 gw) infants (n=1936), the rate of any breastfeeding decreased from 56 % to 53 %; in very preterm (28-31 gw) infants (n=4595) from 81 % to 70 % and in moderately preterm (32-36 gw) infants (n=22.914) from 92 % to 87 %, during the study period. Gestational age at birth, multiple births, way of delivery and infants’ diseases did not seem to have increased during 2004-2013 and thereby influencing the decrease in breastfeeding. However, an increase in reported diseases in mothers was seen, from 15 % in 2004 to 29 % in 2013.Conclusions: Our preliminary findings show a decrease in breastfeeding incidence at discharge among preterm infants in Sweden during 2004-2013. Further analyses may indicate potential influencing factors. Our preliminary findings give rise to concern and present a challenge to those working with preterm infants and their families in Neonatal Units in their support to mothers and their infants.
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| 23. |
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| 24. |
- Guzzi, Nicola, et al.
(författare)
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Pseudouridylation of tRNA-Derived Fragments Steers Translational Control in Stem Cells
- 2018
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Ingår i: Cell. - : Elsevier BV. - 0092-8674 .- 1097-4172. ; 173:5, s. 26-1216
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Tidskriftsartikel (refereegranskat)abstract
- Pseudouridylation (Ψ) is the most abundant and widespread type of RNA epigenetic modification in living organisms; however, the biological role of Ψ remains poorly understood. Here, we show that a Ψ-driven posttranscriptional program steers translation control to impact stem cell commitment during early embryogenesis. Mechanistically, the Ψ “writer” PUS7 modifies and activates a novel network of tRNA-derived small fragments (tRFs) targeting the translation initiation complex. PUS7 inactivation in embryonic stem cells impairs tRF-mediated translation regulation, leading to increased protein biosynthesis and defective germ layer specification. Remarkably, dysregulation of this posttranscriptional regulatory circuitry impairs hematopoietic stem cell commitment and is common to aggressive subtypes of human myelodysplastic syndromes. Our findings unveil a critical function of Ψ in directing translation control in stem cells with important implications for development and disease. Translational control in stem cells is orchestrated by pseudouridylation of specific tRNA-derived fragments, impacting stem cell commitment during key developmental processes.
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| 25. |
- Hadrévi, Jenny, 1977-
(författare)
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Applying proteomics and metabolomics for studying human skeletal muscle with a focus on chronic trapezius myalgia
- 2012
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Work related musculoskeletal disorders are the dominating causes of reported ill-health in industrialized countries. These chronic pain conditions are one of the most costly public health problems in Europe and North America. When work related musculoskeletal disorders are considered to be of muscular origin and the trapezius muscle is affected, the common appellation is trapezius myalgia. Since little is known about the genesis or how it is maintained, it is of great importance to better understand the pathophysiology of trapezius myalgia; doing so will better enable recommendations for prevention, treatment and rehabilitation. Several hypotheses have been presented based on biochemical alterations in the muscle, suggesting increased signaling of inflammatory substances and altered metabolism. Previous research has not been able to present the comprehensive picture of the muscle in pain. Thus there is a demand for more comprehensive research regarding the biochemical milleu of the chronic trapezius muscle.Proteomic and metabolomic methods allow non-targeted simultaneous analyses of a large number of proteins and metabolites. The main emphasis in this thesis is on a proteomic method, two-dimensional differential gel electrophoresis (2D-DIGE). The method is validated to human skeletal muscle biopsy research with laboratory specific settings. In the baseline study, there were 14 metabolic, contractile, structural and regulatory proteins that differed significantly in abundance when trapezius and vastus lateralis muscles were compared. Using the validated 2D-DIGE method and the baseline study, a comparison between healthy and myalgic muscles was made. Biopsies from female cleaners with and without myalgia were compared to obtain results from women with the same type of work exposure. In the multivariate model, 28 identified unique proteins separated healthy and myalgic muscle and were grouped according to function: metabolic (n=10), contractile (n=9), regulatory (n=3), structural (n=4), and other (n=2). Finally, a second screening method, metabolomics, was introduced to analyze differences in metabolite content as a complement to and verification of the proteomic results. Gas chromatography-mass spectrometry (GC-MS) was performed on muscle interstitial fluid samples obtained with microdialysis, and differences in the abundance of extracellular metabolites were revealed. The 2D-DIGE method is a reliable method to analyze human skeletal muscle. The outcomes of the proteomic analyses were dependant on the statistical approach. Systematic differences in protein and metabolite content were detected using a multivariate approach. Univariate analyses were used to analyze individual proteins for their significance. The significant proteins in the baseline study were predominately related to muscle fiber type which correlated with the differences in fiber type content between trapezius and vastus lateralis. The proteomic and metabolomics studies where myalgic and healthy muscles were compared provide us with new clues and new aspects regarding the pathophysiology of the myalgic muscle.Technically advanced methods employed in the thesis enabled an explorative screening of proteins of relevance for the pathophysiology of the myalgic muscle. The results of these analyses may contribute to the formulation of future hypothesis that need to be further evaluated.
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| 26. |
- Hadrévi, Jenny, 1977-, et al.
(författare)
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Comparative metabolomics of muscle interstitium fluid in human trapezius myalgia: an in vivo microdialysis study
- 2013
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Ingår i: European Journal of Applied Physiology. - : Springer Verlag (Germany). - 1439-6319 .- 1439-6327. ; 113:12, s. 2977-2989
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Tidskriftsartikel (refereegranskat)abstract
- The mechanisms behind trapezius myalgia are unclear. Many hypotheses have been presented suggesting an altered metabolism in the muscle. Here, muscle microdialysate from healthy and myalgic muscle is analysed using metabolomics. Metabolomics analyse a vast number of metabolites, enabling a comprehensive explorative screening of the cellular processes in the muscle. less thanbrgreater than less thanbrgreater thanMicrodialysate samples were obtained from the shoulder muscle of healthy and myalgic subjects that performed a work and stress test. Samples from the baseline period and from the recovery period were analysed using gas chromatography-mass spectrometry (GC-MS) together with multivariate analysis to detect differences in extracellular content of metabolites between groups. Systematic differences in metabolites between groups were identified using multivariate analysis and orthogonal partial least square discriminate analysis (OPLS-DA). A complementary Mann-Whitney U test of group difference in individual metabolites was also performed. less thanbrgreater than less thanbrgreater thanA large number of metabolites were detected and identified in this screening study. At baseline, no systematic differences between groups were observed according to the OPLS-DA. However, two metabolites, l-leucine and pyroglutamic acid, were significantly more abundant in the myalgic muscle compared to the healthy muscle. In the recovery period, systematic difference in metabolites between the groups was observed according to the OPLS-DA. The groups differed in amino acids, fatty acids and carbohydrates. Myristic acid and putrescine were significantly more abundant and beta-d-glucopyranose was significantly less abundant in the myalgic muscle. less thanbrgreater than less thanbrgreater thanThis study provides important information regarding the metabolite content, thereby presenting new clues regarding the pathophysiology of the myalgic muscle.
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| 27. |
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| 28. |
- Hadrevi, Jenny, et al.
(författare)
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Evaluation of trapezius using proteomic methods
- 2007
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Ingår i: Sixth International Scientific Conference on Prevention of Work-Related Musculoskeletal Disorders. ; , s. 274-
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Konferensbidrag (refereegranskat)
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| 29. |
- Hadrévi, Jenny, 1977-, et al.
(författare)
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Multivariate Modeling of Proteins Related to Trapezius Myalgia, a Comparative Study of Female Cleaners with or without Pain
- 2013
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Ingår i: PLOS ONE. - : Public Library of Science. - 1932-6203. ; 8:9, s. e73285-
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Tidskriftsartikel (refereegranskat)abstract
- The prevalence of chronic trapezius myalgia is high in women with high exposure to awkward working positions, repetitive movements and movements with high precision demands. The mechanisms behind chronic trapezius myalgia are not fully understood. The purpose of this study was to explore the differences in protein content between healthy and myalgic trapezius muscle using proteomics. Muscle biopsies from 12 female cleaners with work-related trapezius myalgia and 12 pain free female cleaners were obtained from the descending part of the trapezius. Proteins were separated with two-dimensional differential gel electrophoresis (2D-DIGE) and selected proteins were identified with mass spectrometry. In order to discriminate the two groups, quantified proteins were fitted to a multivariate analysis: partial least square discriminate analysis. The model separated 28 unique proteins which were related to glycolysis, the tricaboxylic acid cycle, to the contractile apparatus, the cytoskeleton and to acute response proteins. The results suggest altered metabolism, a higher abundance of proteins related to inflammation in myalgic cleaners compared to healthy, and a possible alteration of the contractile apparatus. This explorative proteomic screening of proteins related to chronic pain in the trapezius muscle provides new important aspects of the pathophysiology behind chronic trapezius myalgia.
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| 30. |
- Hadrevi, Jenny, et al.
(författare)
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Myosin light chain and calcium regulating protein differences in chronic musculoskeletal neck and shoulder pain
- 2016
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Ingår i: Journal of Integrated Omnics. - : Proteomass Scientific Society. - 2182-0287. ; 6:1, s. 1-8
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Tidskriftsartikel (refereegranskat)abstract
- Proteomic screening analysis has detected myosin light chain (MLC) as a protein implied to be involved in chronic musculoskeletal neck and shoulder pain. Several analyses of MLC proteins have stated a difference in phosphorylation being the determining factor for protein activation hence altered contrability of the muscle in i.e. senescence. In continuation of a previous publication, this study is an attempt to analyze the different MLC isoforms by mass spectrometry and immune-analyses in myalgic and healthy trapezius muscle. In the present study no differences in phosphorylation level between the corresponding individual proteins were detected using LC-MSMS and immunoblotting; instead we assigned different isoforms of regulatory MLCs. To further elucidate the contrability: calcium (Ca2+) regulatory proteins, sarco(endo)plasmic reticulum Ca2+ ATPase 1 (SERCA-1) and calsequestrine (CSQ) were analyzed by western blot. The analysis revealed a significantly increased abundance of SERCA-1 protein in the myalgic muscle and a significantly increased abundance of CSQ in healthy muscle. Myalgic muscle contraction patterns have in previous studies shown to differ from healthy muscle which may be connected to the Ca2+ availability in the muscle. Here we present the proteomic characterization of differences in Ca2+ regulating proteins and particularly regulatory MLCs in trapezius muscle of women with chronic musculoskeletal neck and shoulder pain.
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| 31. |
- Hadrevi, Jenny, 1977-, et al.
(författare)
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Protein differences between human trapezius and vastus lateralis muscles determined with a proteomic approach
- 2011
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Ingår i: BMC Musculoskeletal Disorders. - : Springer Science and Business Media LLC. - 1471-2474. ; 12:181
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Tidskriftsartikel (refereegranskat)abstract
- Background The trapezius muscle is a neck muscle that is susceptible to chronic pain conditions associated with repetitive tasks, commonly referred to as chronic work-related myalgia, hence making the trapezius a muscle of clinical interest. To provide a basis for further investigations of the proteomic traits of the trapezius muscle in disease, two-dimensional difference gel electrophoresis (2D-DIGE) was performed on the healthy trapezius using vastus lateralis as a reference. To obtain as much information as possible from the vast proteomic data set, both one-way ANOVA, with and without false discovery rate (FDR) correlation, and partial least square projection to latent structures with discriminant analysis (PLS-DA) were combined to compare the outcome of the analysis. Results The trapezius and vastus lateralis showed significant differences in metabolic, contractile and regulatory proteins, with different results depending on choice of statistical approach and pre-processing technique. Using the standard method, FDR correlated one-way ANOVA, 42 protein spots differed significantly in abundance between the two muscles. Complementary analysis using immunohistochemistry and western blot confirmed the results from the 2D-DIGE analysis. Conclusions The proteomic approach used in the present study combining 2D-DIGE and multivariate modelling provided a more comprehensive comparison of the protein profiles of the human trapezius and vastus lateralis muscle, than previously possible to obtain with immunohistochemistry or SDS-PAGE alone. Although 2D-DIGE has inherent limitations it is particularly useful to comprehensively screen for important structural and metabolic proteins, and appears to be a promising tool for future studies of patients suffering from chronic work related myalgia or other muscle diseases.
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| 32. |
- Hadrévi, Jenny, et al.
(författare)
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Systemic differences in serum metabolome : a cross sectional comparison of women with localised and widespread pain and controls
- 2015
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Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 5
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Tidskriftsartikel (refereegranskat)abstract
- Chronic musculoskeletal pain exists either as localised to a single region or as widespread to multiple sites in several quadrants of the body. Prospective studies indicate that widespread pain could act as a far end of a continuum of musculoskeletal pain that started with chronic localised pain. The mechanism by which the transition from localised pain to widespread occurs is not clear, although many studies suggest it to be an altered metabolism. In this study, systemic metabolic differences between women with chronic localised neck-shoulder pain (NP), women with chronic widespread pain (CWP) and women who were healthy (CON) were assessed. Blood samples were analysed taking a metabolomics approach using gas chromatography mass spectrometry (GC-MS) and orthogonal partial least square discriminant analysis (OPLS-DA). The metabolomics analysis showed a clear systematic difference in the metabolic profiles between the subjects with NP and the CON but only a weak systematic difference between the subjects with CWP and the CON. This most likely reflects a difference in the portion of the metabolome influenced by the two pain conditions. In the NP group, the overall metabolic profile suggests that processes related to energy utilisation and lipid metabolism could be central aspects of mechanisms maintaining disorder.
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| 33. |
- Hellström, Anders, et al.
(författare)
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Populismens dubbla ansikte
- 2013
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Ingår i: IMER idag. - : Liber. - 9789147098774 ; , s. 186-214
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Kapitlet behandlar dels begreppet populism i relation till demokrati och dels hur ”populistiska” partier växer sig starkare. Populism kan ta sig uttryck i en frustration bland befolkningen över att samhällets kulturella eliter moraliserar över hur ”vanligt folk” lever sina liv eller att dess politiska eliter förbiser folkets önskemål. Populism kan också handla om främlingsfientlig politik. Men det behöver inte göra det. Till syvende och sist handlar det om vilket folk som mobiliseras mot vem. Sverigedemokraterna (SD) anklagas för att göra politik av främlingsfientliga stämningar. Partiet självt säger sig företräda mannen på gatan gentemot samhällets eliter. Måhända är det lätt att avfärda populism som känslomässigt utspel. Men det är viktigt att komma ihåg att också motståndare spelar på känslor i sitt avståndstagande mot denna retorik. Häri ligger populismens dubbla ansikte.
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| 34. |
- Hellström, Andreas, 1980, et al.
(författare)
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Secretion of non-cell-bound phytase by the yeast Pichia kudriavzevii TY13
- 2015
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Ingår i: Journal of Applied Microbiology. - : Oxford University Press (OUP). - 1365-2672 .- 1364-5072. ; 118:5, s. 1126-1136
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Tidskriftsartikel (refereegranskat)abstract
- AimsMineral deficiencies cause several health problems in the world, especially for populations consuming cereal-based diets rich in the anti-nutrient phytate. Our aim was to characterize the phytate-degrading capacity of the yeast Pichia kudriavzevii TY13 and its secretion of phytase. Methods and ResultsThe phytase activity in cell-free supernatants from cultures with 100% intact cells was 35-190mUml(-1) depending on the media. The K-m was 028mmoll(-1) and the specific phytase activity 032Umg(-1) total protein. The phytase activity and secretion of extracellular non-cell-bound phytase was affected by the medium phosphate concentrations. Further, addition of yeast extract had a clearly inducing effect, resulting in over 60% of the cultures total phytase activity as non-cell-bound. ConclusionsOur study reveals that it is possible to achieve high extracellular phytase activity from the yeast P.kudriavzevii TY13 by proper composition of the growth medium. Significance and Impact of the StudyTY13 could be a promising future starter culture for fermented foods with improved mineral bioavailability. Using strains that secrete phytase to the food matrix may significantly improve the phytate degradation by facilitating the enzyme-to-substrate interaction. The secreted non-cell-bound phytase activities by TY13 could further be advantageous in industrial production of phytase.
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| 35. |
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| 36. |
- Hellström, Petter, 1980-
(författare)
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Trees of Knowledge : Science and the Shape of Genealogy
- 2019
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This study investigates early employments of family trees in the modern sciences, in order to historicise their iconic status and now established uses, notably in evolutionary biology and linguistics. Moving beyond disciplinary accounts to consider the wider cultural background, it examines how early uses within the sciences transformed family trees as a format of visual representation, as well as the meanings invested in them.Historical writing about trees in the modern sciences is heavily tilted towards evolutionary biology, especially the iconic diagrams associated with Darwinism. Trees of Knowledge shifts the focus to France in the wake of the Revolution, when family trees were first put to use in a number of disparate academic fields. Through three case studies drawn from across the disciplines, it investigates the simultaneous appearance of trees in natural history, language studies, and music theory. Augustin Augier’s tree of plant families, Félix Gallet’s family tree of dead and living languages, and Henri Montan Berton’s family tree of chords served diverse ends, yet all exploited the familiar shape of genealogy.While outlining how genealogical trees once constituted a more general resource in scholarly knowledge production—employed primarily as pedagogical tools—this study argues that family trees entered the modern sciences independently of the evolutionary theories they were later made to illustrate. The trees from post-revolutionary France occasionally charted development over time, yet more often they served to visualise organic hierarchy and perfect order. In bringing this neglected history to light, Trees of Knowledge provides not only a rich account of the rise of tree thinking in the modern sciences, but also a pragmatic methodology for approaching the dynamic interplay of metaphor, visual representation, and knowledge production in the history of science.
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| 37. |
- Laurell, Jenny, et al.
(författare)
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Deceptive behaviour and instrumental violence among psychopathic and non-psychopathic violent forensic psychiatric patients
- 2014
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Ingår i: Psychology, Crime and Law. - : Routledge. - 1068-316X .- 1477-2744. ; 20:5, s. 467-479
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Tidskriftsartikel (refereegranskat)abstract
- Deceptive behaviour and instrumental violence are well-known psychopathic features and as such play important roles in the assessment of psychopathy. This study examined first, the nature of the violence committed by offenders that have been admitted to forensic psychiatric care and whether scores on the Psychopathy Checklist: Screening Version (PCL:SV), Part 1, were associated with the instrumentality of violence. Second, we examined the proneness of offenders to re-frame the instrumentality in their past violent crimes, and whether this was associated with scores on the PCL:SV. The results show that the PCL:SV, Part 1 (interpersonal/affective features), was positively related to the officially coded instrumentality of the violent crimes. As expected, this association disappeared when the instrumentality was self-reported. However, the majority of the patients tended to exaggerate the reactivity of their violent crimes when it was self-reported, indicating that most offenders, independently of level of psychopathy, used deception when questioned about the characteristics of their past violent crimes. The reasons for, and implications of, the use of deception are discussed.
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| 38. |
- Laurell, Jenny, et al.
(författare)
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Facets on the psychopathy checklist screening version and instrumental violence in forensic psychiatric patients
- 2010
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Ingår i: CBMH. Criminal behaviour and mental health. - : Wiley. - 0957-9664 .- 1471-2857. ; 20:4, s. 285-294
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Tidskriftsartikel (refereegranskat)abstract
- Background There is a recognised relationship between psychopathy and instrumental violence, but not all violence by people who meet the criteria for psychopathy is instrumental. Aims Our aims were to compare offence types among forensic psychiatric patients with and without the Psychopathy Checklist: Screening Version (PCL: SV) criteria for psychopathy. Our specific questions were whether factor 1 the interpersonal affective dimension was related to instrumentality and on severity of the violent crime. Our hypothesis was that the relationship between psychopathy and instrumental violence would be dependent on the severity of the violent crime. Methods Sixty-five male patients at the forensic psychiatric hospital in Sundsvall, all with a violent criminal history, were assessed for psychopathy through interview and records using the PCL: SV. Severity and the instrumentality of their previous violence were coded using the Cornell coding guide for violent incidents. Results The interpersonal features of psychopathy (the interpersonal facet), and only the interpersonal features were significantly associated with instrumentality and severity of violence. Instrumentality was also significantly related to the severity of the violence, independent of psychopathy score. Conclusions The results indicated that, at least among forensic psychiatric patients, planning is more likely than not with respect to serious crimes. The specific link between interpersonal features of psychopathy and instrumental and severe violence suggests potential clinical value in recognising subtypes of psychopathy.
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| 39. |
- Linderoth, Maria, et al.
(författare)
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Högfluorerade ämnen (PFAS) och bekämpningsmedel : En sammantagen bild av förekomsten i miljön Redovisning av ett regeringsuppdrag
- 2016
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Här redovisas resultaten från den screening av förekomsten av högfluorerade ämnen (PFAS) och växtskyddsmedel i yt- och grundvatten som Naturvårdsverket genomförde på uppdrag av regeringen under 2015-2016.Screeningen genomfördes dels genom nya mätningar av PFAS och växtskyddsmedel, dels genom att sammanställa resultaten från äldre mätningar. Resultaten visar att PFAS finns i halter som kan utgöra en risk för människors hälsa och miljö i anslutning till bekräftade punktkällor, främst brandövningsplatser. Halterna av växtskyddsmedel i miljön bedöms i dagsläget inte utgöra en ökande risk för hälsa eller miljö.Över 2 000 kända eller potentiella lokala källor till PFAS har identifierats. Användning av brandsläckningsskum är den största direkta punktkällan medan avloppsreningsverk och avfallshantering sannolikt är betydande sekundära punktkällor. PFAS är fortfarande dåligt undersökt i ett antal allmänna vattentäkter och enskilda brunnar i närheten av många möjliga utsläppskällor. För att begränsa utsläpp och spridning avser Naturvårdsverket bland annat att förstärka tillsynsvägledningen kring PFAS och andra farliga ämnen i miljön.När det gäller växtskyddsmedel överensstämmer resultatet väl med tidigare uppmätta halter – ett fåtal ämnen förekommer mest frekvent i halter över rikt- eller gränsvärden.Det är angeläget att framtaget dataunderlag används vidare på lokal, regional och nationell nivå för att begränsa riskerna med PFAS och växtskyddsmedel.
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| 40. |
- Marcusson, Jan, et al.
(författare)
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Proactive healthcare for frail elderly persons : study protocol for a prospective controlled primary care intervention in Sweden
- 2019
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Ingår i: BMJ Open. - : BMJ Publishing Group Ltd. - 2044-6055. ; 9:5
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Tidskriftsartikel (refereegranskat)abstract
- Introduction The provision of healthcare services is not dedicated to promoting maintenance of function and does not target frail older persons at high risk of the main causes of morbidity and mortality. The aim of this study is to evaluate the effects of a proactive medical and social intervention in comparison with conventional care on a group of persons aged 75 and older selected by statistical prediction.Methods and analysis In a pragmatic multicentre primary care setting (n=1600), a prediction model to find elderly (75+) persons at high risk of complex medical care or hospitalisation is used, followed by proactive medical and social care, in comparison with usual care. The study started in April 2017 with a run-in period until December 2017, followed by a 2-year continued intervention phase that will continue until the end of December 2019. The intervention includes several tools (multiprofessional team for rehabilitation, social support, medical care home visits and telephone support). Primary outcome measures are healthcare cost, number of hospital care episodes, hospital care days and mortality. Secondary outcome measures are number of outpatient visits, cost of social care and informal care, number of prescribed drugs, health-related quality of life, cost-effectiveness, sense of security, functional status and ability. We also study the care of elderly persons in a broader sense, by covering the perspectives of the patients, the professional staff and the management, and on a political level, by using semistructured interviews, qualitative methods and a questionnaire.Ethics and dissemination Approved by the regional ethical review board in Linköping (Dnr 2016/347-31). The results will be presented in scientific journals and scientific meetings during 2019–2022 and are planned to be used for the development of future care models.
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| 41. |
- Mjösberg, Jenny, et al.
(författare)
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Systemic reduction of functionally suppressive CD4dimCD25highFoxp3+ Tregs in human second trimester pregnancy is induced by progesterone and 17θ-estradiol
- 2009
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Ingår i: Journal of Immunology. - : The American Association of Immunologists. - 0022-1767 .- 1550-6606. ; 183:1, s. 759-769
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Tidskriftsartikel (refereegranskat)abstract
- CD4+CD25high regulatory T cells (Tregs) are implicated in the maintenance of murine pregnancy. However, reports regarding circulating Treg frequencies in human pregnancy are inconsistent, and the functionality and phenotype of these cells in pregnancy have not been clarified. The aim of this study was to determine the frequency, phenotype, and function of circulating Tregs in the second trimester of human pregnancy and the influence of progesterone and 17β-estradiol on Treg phenotype and frequency. Based on expressions of Foxp3, CD127, and HLA-DR as determined by multicolor flow cytometry, we defined a proper CD4dimCD25high Treg population and showed, in contrast to most previous reports, that this population was reduced in second trimester of pregnancy. Unexpectedly, Foxp3 expression was decreased in the Treg, as well as in the CD4+ population. These changes could be replicated in an in vitro system resembling the pregnancy hormonal milieu, where 17β-estradiol, and in particular progesterone, induced, in line with the pregnancy situation, a reduction of CD4dimCD25highFoxp3+ cells in PBMC from nonpregnant women. By coculturing FACS-sorted Tregs and autologous CD4+CD25– responder cells, we showed that Tregs from pregnant women still displayed the same suppressive capacity as nonpregnant women in terms of suppressing IL-2, TNF-, and IFN- secretion from responder cells while efficiently producing IL-4 and IL-10. Our findings support the view of hormones, particularly progesterone, as critical regulators of Tregs in pregnancy. Furthermore, we suggest that in the light of the results of this study, early data on circulating Treg frequencies in pregnancy need reevaluation.The costs of publication of this article were defrayed in part by the payment of page charges. This article must therefore be hereby marked advertisement in accordance with 18 U.S.C. Section 1734 solely to indicate this fact.
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| 42. |
- Mohlkert, Lilly -Ann, et al.
(författare)
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Preterm arteries in childhood : dimensions, intima-media thickness, and elasticity of the aorta, coronaries, and carotids in 6-y-old children born extremely preterm
- 2017
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Ingår i: Pediatric Research. - : NATURE PUBLISHING GROUP. - 0031-3998 .- 1530-0447. ; 81:2, s. 299-306
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Preterm birth increases risk for adult cardiovascular disease. We hypothesized that arteries in 6-y-old children born preterm are narrower, with thicker intima-media and stiffer than in peers born at term. METHODS: Children born extremely preterm (EXP, n = 176, birthweights: 348-1,161 g) and at term (CTRL, n = 174, birth weights: 2,430-4,315 g) were included. Using ultrasonography, we determined diameters of the coronaries (CA), common carotid arteries (CCA) and aorta, the carotid intima media thickness (CIMT), and the stiffness index of the CCA and aorta. RESULTS: Arteries were 5-10% narrower in EXP than in CTRL (P < 0.005) but after adjustment for body surface area, diameter differences diminished or disappeared. EXP-children born small for gestational age exhibited similar arterial dimensions as those born appropriate for date. The cIMT was 0.38 (SD = 0.04) mm and did not differ between groups. Carotid but not aortic stiffness was lower in EXP than in CTRL. CONCLUSION: In 6-y-old children born extremely preterm, conduit arteries are of similar or smaller size than in controls born at term, and they have no signs of accelerated intima media thickening or arterial stiffening. While these findings are reassuring for these children and their families, the causal pathways from preterm birth to adult cardiovascular disease remain unknown.
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| 43. |
- Rosén, Christina, 1960-, et al.
(författare)
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Bristande kunskaper i tyska ett handikapp för Sverige
- 2015
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Ingår i: Göteborgsposten. - Göteborg : Stampen AB. - 1103-9345. ; :2015-03-13
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- Tyskland är Sveriges i särklass viktigaste ekonomiska partner. Men bland politiker och i svenskt näringsliv är tyskakunskaperna en bristvara. Det är ett allvarligt handikapp som direkt går att översätta i ekonomiska förlustsiffror.
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| 44. |
- Schmöker, Annika, et al.
(författare)
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Longitudinal cohort study reveals different patterns of stress in parents of preterm infants during the first year after birth
- 2020
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Ingår i: Acta Paediatrica. - : Wiley-Blackwell Publishing Inc.. - 0803-5253 .- 1651-2227. ; 109:9, s. 1778-1786
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To compare experiences of stress in mothers and fathers of preterm infants during the first year of life, assess changes in parental stress and explore potential predictors of parental stress.Methods: Between 2013 and 2015, data on parental stress were collected at 8 weeks after discharge and at 6 and 12 months postpartum from 493 mothers and 329 fathers of 547 preterm infants in Sweden. The Swedish Parenting Stress Questionnaire was used as a secondary outcome in a randomised clinical trial of breastfeeding support.Results: At the three time points, mothers perceived more role restriction and fathers more social isolation (p<0.001). Stress decreased in mothers during the first year (p=0.018), whereas stress increased in fathers between 6 and 12 months (p=0.048). Mothers of very preterm infants (p=0.024), parents of twins (p=0.038) and parents with lower perceived general health (p=0.003) reported higher levels of stress during the first year after birth.Conclusion: This study identified several factors that influenced parental stress. Mothers and fathers showed different patterns of stress levels during the first year after birth. This finding indicates different needs for mothers and fathers regarding the time at which parental support after discharge might be most beneficial.
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