| 1. |
- Elfgren, Lennart, et al.
(författare)
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Forskning och forskarutbildning vid Tekniska högskolan i Luleå : Strategisk Plan 1991-1995
- 1990
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Rapport (refereegranskat)abstract
- Forskningen vid Tekniska högskolan i Luleå syftar till att vinna ny kunskap inom områden som är betydelsfulla för landet och regionen. Forskarutbildningen syftar till att utbilda licentiater och doktorer inom sådana områden.Under femårsperioden fram till och med 1995 bör den externfinansierade forskningen öka med 25 %. Vidare bör 5-10 europeiskla samarbetsprojekt etableras. För att uppmå dessa mål bör programarbete genomföras inom bland annat områdena datateknik, teknik för kallt klimat, material- konstruktions- och produktionsteknik, kvinnor och teknik samt miljöteknik.En plan bör även upprättas för ny- och återanskaffning av utrustning.En doktorsexamen och en licentiatexamen bör avläggas per tvåårsperid i varje professorsämne. För att klara detta bör varje ämne ha minst tre aktiva forskarstuderande. De forskarstuderande bör erbjudas god handledning, ett bra utbud av doktorandkurser och en god akademisk miljö.
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| 2. |
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| 3. |
- Vogt, Hartmut, et al.
(författare)
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Asthma heredity, cord blood IgE and asthma-related symptoms and medication in adulthood : a long-term follow-up in a Swedish birth cohort
- 2013
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Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 8:6, s. e66777.-
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Tidskriftsartikel (refereegranskat)abstract
- Cord blood IgE has previously been studied as a possible predictor of asthma and allergic diseases. Results from different studies have been contradictory, and most have focused on high-risk infants and early infancy. Few studies have followed their study population into adulthood. This study assessed whether cord blood IgE levels and a family history of asthma were associated with, and could predict, asthma medication and allergy-related respiratory symptoms in adults.A follow-up was carried out in a Swedish birth cohort comprising 1701 consecutively born children. In all, 1661 individuals could be linked to the Swedish Prescribed Drug Register and the Medical Birth Register, and 1227 responded to a postal questionnaire. Cord blood IgE and family history of asthma were correlated with reported respiratory symptoms and dispensed asthma medication at 32–34 years.Elevated cord blood IgE was associated with a two- to threefold increased risk of pollen-induced respiratory symptoms and dispensed anti-inflammatory asthma medication. Similarly, a family history of asthma was associated with an increased risk of pollen-induced respiratory symptoms and anti-inflammatory medication. However, only 8% of the individuals with elevated cord blood IgE or a family history of asthma in infancy could be linked to current dispensation of anti-inflammatory asthma medication at follow-up.Elevated cord blood IgE and a positive family history of asthma were associated with reported respiratory symptoms and dispensed asthma medication in adulthood, but their predictive power was poor in this long-time follow-up.
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| 4. |
- Vogt, Hartmut
(författare)
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Early life factors and the long-term development of asthma
- 2012
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Asthma, a huge burden on millions of individuals worldwide, is one of the most important public health issues in many countries. As genetic and environmental factors interact, asthma may be programmed very early in life, perhaps even in utero.The aim of this thesis was to assess the impact of gestational age, cord blood immunoglobulin E (IgE), a family history of asthma, migration, and pertussis immunization in early life on the development of asthma in child and adult populations.As a proxy for asthma disease, dispensed asthma medication was used as the main outcome variable based on data from the Swedish Prescribed Drug Register. Data from other national registers were used to control for confounders. Three of our studies were based on national cohorts, and one on a local birth cohort that was initiated in 1974–75.Gestational age had an inverse dose-response relationship with dispensed asthma medication in 6– to 19-year-olds. Odds ratios for dispensed asthma medication increased with degree of prematurity compared with children born in term. Furthermore, asthma medication was more likely to be dispensed among children and adolescents born early term after 37–38 weeks’ gestation than among those at the same age who were born in term.Elevated cord blood IgE and a family history of asthma in infancy were associated with a two- to threefold increased likelihood of dispensed asthma medication and self-reported allergen-induced respiratory symptoms at the age of 32–34 years, but the predictive power was poor.Age at migration had an inverse dose-response relationship with dispensed asthma medication at the age of 6–25 years in adoptees and foreign-born children with foreign-born parents. International adoptees and children born in Sweden to foreign-born parents had three- to fourfold higher rates of asthma medication compared with foreign-born children who were raised by their foreign-born birth parents.No association was found between pertussis immunization in early infancy and dispensed asthma medication in 15-year-olds. The type of vaccine or vaccine schedule did not affect the outcome.Fetal life is a vulnerable period. This thesis strengthens the evidence that every week of gestation is important for lung maturation. Cord blood IgE, however, did not predict the risk of asthma in adults. Furthermore, the study of migrating populations demonstrated that environmental changes at any age during childhood may affect the risk of asthma. Another, important public health message from this thesis is that vaccination against pertussis in early childhood can be considered safe with respect to the long-term development of asthma.
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| 5. |
- Al-Majdoub, Mahmoud, et al.
(författare)
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Population-level analysis to determine parameters that drive variation in the plasma metabolite profiles
- 2018
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Ingår i: Metabolites. - : MDPI AG. - 2218-1989. ; 8:4
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Tidskriftsartikel (refereegranskat)abstract
- The plasma metabolome is associated with multiple phenotypes and diseases. However, a systematic study investigating clinical determinants that control the metabolome has not yet been conducted. In the present study, therefore, we aimed to identify the major determinants of the plasma metabolite profile. We used ultra-high performance liquid chromatography (UHPLC) coupled to quadrupole time of flight mass spectrometry (QTOF-MS) to determine 106 metabolites in plasma samples from 2503 subjects in a cross-sectional study. We investigated the correlation structure of the metabolite profiles and generated uncorrelated metabolite factors using principal component analysis (PCA) and varimax rotation. Finally, we investigated associations between these factors and 34 clinical covariates. Our results suggest that liver function, followed by kidney function and insulin resistance show the strongest associations with the plasma metabolite profile. The association of specific phenotypes with several components may suggest multiple independent metabolic mechanisms, which is further supported by the composition of the associated factors. © 2018 by the authors. Licensee MDPI, Basel, Switzerland.
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| 6. |
- Allemann, Hanna, et al.
(författare)
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The co-design of an online support programme with and for informal carers of people with heart failure : A methodological paper
- 2023
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Ingår i: Journal of Clinical Nursing. - : John Wiley & Sons. - 0962-1067 .- 1365-2702. ; 32:19-20, s. 7589-7604
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Tidskriftsartikel (refereegranskat)abstract
- Abstract AimTo describe the co-designing process of an online support programme with and for informal carers of people with heart failure.DesignA co-design process built on core concepts and ideas embedded in co-design methodology.Data sources Our co-design process included three phases involving 32 informal caregivers and 25 content creators; (1) Identification of topics and content through literature searches, focus group interviews and user group sessions; (2) Development of the online support programme and; (3) Refinement and finalization which included testing a paper prototype followed by testing the online version and testing and approval of the final version of the support programme.Outcomes The co-design process resulted in a support programme consisting of 15 different modules relevant to informal carers, delivered on a National Health Portal.Conclusion Co-design is an explorative process where researchers need to balance a range of potentially conflicting factors and to ensure that the end users are genuinely included in the process.Relevance to clinical practice Emphasizing equal involvement of end users (e.g. carers or patients) in the design and development of healthcare interventions aligns with contemporary ideas of person-centred care and provides a valuable learning opportunity for those involved. Furthermore, a co-designed online support programme has the capacity to be both accessible and meet end users' information and support needs, thereby optimizing their self-care abilities. Additionally, an online support programme provides the opportunity to address current challenges regarding scarce resources and the lack of healthcare personnel.Reporting methodsConsolidated criteria for reporting qualitative research (COREQ).Patient or public contributionBoth informal carers and content creators were involved in developing the support programme.
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| 7. |
- Andersson, Eva, 1943-, et al.
(författare)
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Audiometric screening of a population with intellectual disability
- 2013
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Ingår i: International Journal of Audiology. - London : Informa Healthcare. - 1499-2027 .- 1708-8186. ; 52:1, s. 50-56
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Evaluation of pure-tone audiometry (PTA) in hearing screening of a population with mild to profound intellectual disability (ID).Design: PTA was performed at six frequencies at the screening level 20 dB HL. Referral criteria were threshold levels ≥ 25 dB HL at two or more frequencies for one ear or both.Study sample: 1478 participants aged 7–91 years were included.Results: 1470 (99.5%) people cooperated in screening of which 1325 (90%) could be tested on both ears at all six frequencies. A majority, 987 (66.8%), performed ordinary PTA, 234 (15.8%) conditioned play audiometry, and 249 (16.9%) behavioural observation audiometry. Six hundred and sixty-nine (45%) passed and 809 (55%) failed according to referral criteria. Of those failing, 441 (54.5%) accepted referral to clinical evaluation.Conclusions: PTA with slight modifications is applicable for screening of a population with mild to profound intellectual disability. The most challenging and time-consuming activity is to introduce the test procedure in a way that reduces anxiety and establishes trust.
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| 9. |
- Andersson, Linda, 1973, et al.
(författare)
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PLD1 and ERK2 regulate cytosolic lipid droplet formation
- 2006
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Ingår i: J Cell Sci. ; 119:Pt 11, s. 2246-57
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Tidskriftsartikel (refereegranskat)abstract
- We have previously uncovered roles for phospholipase D (PLD) and an unknown cytosolic protein in the formation of cytosolic lipid droplets using a cell-free system. In this report, PLD1 has been identified as the relevant isoform, and extracellular signal-regulated kinase 2 (ERK2) as the cytosolic protein. Increased expression of PLD1 increased lipid droplet formation whereas knockdown of PLD1 using siRNA was inhibitory. A role for ERK2 in basal lipid droplet formation was revealed by overexpression or microinjection, and ablation by siRNA knockdown or pharmacological inhibition. Similar manipulations of other Map kinases such as ERK1, JNK1 or JNK2 and p38alpha or p38beta were without effect. Insulin stimulated the formation of lipid droplets and this stimulation was inhibited by knockdown of PLD1 (by siRNA) and by inhibition or knockdown (by siRNA) of ERK2. Inhibition of ERK2 eliminated the effect of PLD1 on lipid droplet formation without affecting PLD1 activity, suggesting that PLD1 functions upstream of ERK2. ERK2 increased the phosphorylation of dynein which increased the amount of the protein on ADRP-containing lipid droplets. Microinjection of antibodies to dynein strongly inhibited the formation of lipid droplets, demonstrating that dynein has a central role in this formation. Thus dynein is a possible target for ERK2.
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| 10. |
- Andersson, Stefan
(författare)
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Information and Communication Technology : mediated support for working carers of older people
- 2017
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Despite a growing awareness of the importance of support for carers who combine paid work with care of an older relative, so called ‘working carers’, there remains a lack of empirical knowledge about more innovative ways to support this largest group of carers of older people. Information and Communication Technologies (ICTs) are becoming more readily available. As a result, ICTs have made it feasible to offer working carers more targeted forms of support.This thesis aimed to gain an understanding about support for working carers of older people via the use of ICT.An integrative literature review was conducted to explore and evaluate the current evidence base concerning the use of ICT-mediated support for working carers (I). Content analysis of qualitative data was used to describe nursing and support staff’s experiences of using web-based ICTs for information, e-learning and support of working carers (II). Content analysis was also used to describe working carers’ experiences of having access to a web-based family care support network provided by the municipality (III). Descriptive statistical methods were used to analyse survey data which focused on the types of support received and how they were valued by working carers, with a focus on ICT support (IV).Findings highlighted that ICT mediated support provided working carers with the means to manage their caring situation, via the provision of information, e-learning and education, in addition to practical assistance and emotional and/or physical respite from caregiving. In this way, working carers felt empowered in their caring situation by feeling more competent and prepared in their caring role and by strengthening their self-efficacy and positive self-appraisal of their situation. Carers were provided channels to share their frustrations and burdens via forums for emotional and social support between working carers, caring professionals, and other peer carers. This led to working carers feeling less burdened by their caregiving role and it helped promote their wellbeing. Further, carers were helped in some instances to balance work and care. As a result caregiving activities conflicting with work obligations were then lessened.In contrast, when ICT mediated support was neither provided in a timely fashion or in accordance with individual carers’ needs and preferences, then it was perceived by them to be unimportant. Cross-sectional data revealed that take-up of support services was low suggesting that unmet support needs may be inflated by work-care conflicts. For carers with lower digital skills, the additional time needed to learn to use ICTs was a further barrier.Overall, ICT mediated support acted as a complementary form of support for working carers. Measures to overcome dis-empowering aspects of this innovative from of support are needed to avoid working carers’ deprioritizing their own support needs and also to avoid possible digital exclusion from the current information society.
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