| 1. |
- Eriksson, D, et al.
(författare)
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Extended exome sequencing identifies BACH2 as a novel major risk locus for Addison's disease
- 2016
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Ingår i: Journal of Internal Medicine. - : Wiley. - 0954-6820 .- 1365-2796. ; 286:6, s. 595-608
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Autoimmune disease is one of the leading causes of morbidity and mortality worldwide. In Addison's disease, the adrenal glands are targeted by destructive autoimmunity. Despite being the most common cause of primary adrenal failure, little is known about its aetiology.METHODS: To understand the genetic background of Addison's disease, we utilized the extensively characterized patients of the Swedish Addison Registry. We developed an extended exome capture array comprising a selected set of 1853 genes and their potential regulatory elements, for the purpose of sequencing 479 patients with Addison's disease and 1394 controls.RESULTS: We identified BACH2 (rs62408233-A, OR = 2.01 (1.71-2.37), P = 1.66 × 10(-15) , MAF 0.46/0.29 in cases/controls) as a novel gene associated with Addison's disease development. We also confirmed the previously known associations with the HLA complex.CONCLUSION: Whilst BACH2 has been previously reported to associate with organ-specific autoimmune diseases co-inherited with Addison's disease, we have identified BACH2 as a major risk locus in Addison's disease, independent of concomitant autoimmune diseases. Our results may enable future research towards preventive disease treatment.
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| 2. |
- Cedervall, Ylva, et al.
(författare)
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Timed Up-and-Go Dual-Task Testing in the Assessment of Cognitive Function : A Mixed Methods Observational Study for Development of the UDDGait Protocol
- 2020
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Ingår i: International Journal of Environmental Research and Public Health. - : MDPI. - 1661-7827 .- 1660-4601. ; 17:5
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Tidskriftsartikel (refereegranskat)abstract
- New methods to screen for and identify early-stage dementia disorders are highly sought after. The purpose of this pilot study is to develop a study protocol for a dual-task test aimed at aiding the early detection of dementia disorders. We used the Timed Up-and-Go (TUG) test, which is a mobility task involving starting in a sitting position, standing up, walking three meters to cross a line on the floor, turning around, walking back and sitting down again. We combined TUG with the verbal task of naming different animals. Pilot study participants were 43 individuals with and without established dementia diagnoses who attended a clinic for memory assessment. Video-recorded test performances were systematically analysed. Deviant test performances concerning the interplay between test administration and participants' responses to the assessment instructions were revealed and led to refinements being made to the final study protocol. Exploration of the dual-task test outcome measures in a sub-sample of 22 persons, ten with and twelve without dementia, indicated that step-length and number of named animals after the turning point of the dual-task test might constitute appropriate measures for examining this kind of sample. We concluded that the refined study protocol is feasible for testing individuals undergoing initial memory assessments and healthy controls. Follow-up studies with larger samples are being carried out and will bring new knowledge to this area of research. It may also provide an opportunity for further studies exploring possibilities for broad clinical implementation.
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| 3. |
- Bayadsi, Haytham, 1987-, et al.
(författare)
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The correlation between small papillary thyroid cancers and gamma radionuclides Cs-137, Th-232, U-238 and K-40 using spatially-explicit, register-based methods
- 2023
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Ingår i: Spatial and Spatio-Temporal Epidemiology. - : Elsevier. - 1877-5845 .- 1877-5853. ; 47
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Tidskriftsartikel (refereegranskat)abstract
- A steep increase of small papillary thyroid cancers (sPTCs) has been observed globally. A major risk factor for developing PTC is ionizing radiation. The aim of this study is to investigate the spatial distribution of sPTC in Sweden and the extent to which prevalence is correlated to gamma radiation levels (Caesium-137 (Cs-137), Thorium-232 (Th-232), Uranium-238 (U-238) and Potassium-40 (K-40)) using multiple geospatial and geo-statistical methods. The prevalence of metastatic sPTC was associated with significantly higher levels of Gamma radiation from Th-232, U-238 and K-40. The association is, however, inconsistent and the prevalence is higher in densely populated areas. The results clearly indicate that sPTC has causative factors that are neither evenly distributed among the population, nor geographically, calling for further studies with bigger cohorts. Environ-mental factors are believed to play a major role in the pathogenesis of the disease.
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| 4. |
- Höglund, Odd, et al.
(författare)
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Chromogranin A and cortisol at intraoperative repeated noxious stimuli : surgical stress in a dog model
- 2015
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Ingår i: SAGE Open Medicine. - : SAGE Publications. - 2050-3121. ; 3
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: Biomarkers representing sympathetic tone and the surgical stress response are measured to objectively evaluate surgical techniques and anaesthetic protocols. If a part of the intraoperative procedure is repeated on the contralateral organ, one animal may potentially serve as its own control and, if so, may minimize the problem of individual differences of the stress response to anaesthesia and surgery. This study aimed to investigate the use of chromogranin A for measurement of the intraoperative sympathetic tone. Additional aims were to investigate chromogranin A and cortisol as indicators of the intraoperative surgical stress response caused by repeated noxious stimuli in dogs subjected to ovariohysterectomy and thereby to investigate the possibility of one dog serving as its own control. Methods: Experiments were carried out on 10 dogs subjected to ovariohysterectomy. Perioperative blood samples (0-6) were collected after premedication, immediately before induction of anaesthesia (0), after induction of anaesthesia and before incision (1), before (2) and after (3) removal of the first ovary, after a 15-min pause before removal of the second ovary (4), after removal of the second ovary (5) and after closing the abdomen (6). Plasma chromogranin A and cortisol were analysed. Results: Plasma chromogranin A did not change. Plasma cortisol concentration did not change between before anaesthesia and opening of the abdomen. Plasma cortisol increased at removal of the first ovary. Cortisol did not change at removal of the second ovary but remained increased compared to initial sample. Conclusion: The results suggest chromogranin A is a poor indicator of intraoperative sympathetic tone during elective surgery in dogs. Cortisol measurement was useful for assessment of intraoperative noxious stimuli. However, at these test conditions, neither plasma chromogranin A nor plasma cortisol was useful for assessment of repeated intraoperative noxious stimuli where one dog served as its own control..
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| 5. |
- Ostman, Maria, et al.
(författare)
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Novel Calcium Phosphate Promotes Interbody Bony Fusion in a Porcine Anterior Cervical Discectomy and Fusion Model
- 2024
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Ingår i: Spine. - : Wolters Kluwer. - 0362-2436 .- 1528-1159. ; 49:17, s. 1179-1186
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Tidskriftsartikel (refereegranskat)abstract
- Study Design: Experimental porcine anterior cervical discectomy and fusion (ACDF) model: a proof-of-concept study.Objective.The effect of monetite synthetic bone graft (SBG) containing calcium pyrophosphate and beta-tricalcium phosphate on cervical spinal fusion in a noninstrumented two-level large animal model.Summary of Background Data: ACDF is the gold standard surgical technique for the treatment of degenerative cervical spinal diseases. However, pseudarthrosis associated with increased patient morbidity occurs in similar to 2.6% of the surgeries. SBG may enhance bony fusion and subsequently decrease the risk of pseudarthrosis. Recent studies on monetite-based SBGs for use in large cranial defects in humans have shown promising bone healing results, necessitating further investigation of their use in cervical spinal fusion.Materials and Methods: Four adult female Danish G & ouml;ttingen minipigs received partial cervical anterior discectomy and intervertebral defects at an upper and lower level. One defect was filled with SBG, and the other was left empty. Bony fusion was evaluated using computed tomography (CT) at three-month intervals for 12 months. Fifteen months postsurgery, the animals were euthanized for further ex vivo qualitative histopathologic and micro-CT evaluations. Fusion rates were compared using the Fisher exact test at each time point.Results.Increased interbody bony fusion rates were observed at SBG levels (4/4) compared with control levels (0/4) evaluated by CT at 6 and 9 months postsurgery (P=0.029). Fusion was observed at all SBG levels 12 months postsurgery and at only one control level. Histopathologic evaluation confirmed high-quality interbody bony fusion at all SBG levels and fusion by spondylosis at one control level.Conclusion: This proof-of-concept study provides preliminary evidence of a novel, calcium pyrophosphate-containing, and beta-tricalcium phosphate-containing monetite SBG that promotes bony fusion compared with a negative control in a clinically relevant porcine model of ACDF.
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| 6. |
- Landberg, Rikard, 1981, et al.
(författare)
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New alkylresorcinol metabolites in spot urine as biomarkers of whole grain wheat and rye intake in a Swedish middle-aged population
- 2018
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Ingår i: European Journal of Clinical Nutrition. - : Springer Science and Business Media LLC. - 0954-3007 .- 1476-5640. ; 72:10, s. 1439-1446
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Tidskriftsartikel (refereegranskat)abstract
- Background/objectives: Studies on the health effects of whole grains typically use self-reported intakes which are prone to large measurement errors. Dietary biomarkers that can provide an objective measure of intake are needed. New alkylresorcinol (AR) metabolites (3,5-dihydroxycinnamic acid (DHCA), 2-(3,5-dihydroxybenzamido)acetic acid (DHBA-glycine) and 5-(3,5-dihydroxyphenyl) pentanoic acid (DHPPTA)) in 24 h urine samples have been suggested as biomarkers for whole grain (WG) wheat and rye intake but remain to be evaluated in spot urine samples. Subjects/methods: The reproducibility of the new AR metabolites (DHCA, DHBA-glycine and DHPPTA) was investigated in 4 repeated samples over a period of 2 wk in spot urine from 40 Swedish men and women enroled in the SCAPIS-study, after adjustment of creatinine. Metabolite concentrations were correlated with total whole grain intake estimated during the same period. Results: The medium-term reproducibility determined for DHCA, DHPPTA and DHBA-glycine varied from moderate to excellent (intra-class correlation coefficient = 0.35–0.67). Moreover, DHCA and DHBA-glycine were independently associated with self-reported total WG intake (β = 0.18, P = 0.08 and β = 0.18, P = 0.02, respectively) and all metabolites except for DHPPA were higher among women. Conclusions: This study supports the idea of using AR metabolites in one or several spot urine samples as biomarkers of whole grain intake. These findings need to be confirmed in different populations.
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| 7. |
- Berntson, Lillemor, 1957-, et al.
(författare)
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A Pilot Study Investigating Faecal Microbiota After Two Dietary Interventions in Children with Juvenile Idiopathic Arthritis
- 2022
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Ingår i: Current Microbiology. - : Springer Science and Business Media LLC. - 0343-8651 .- 1432-0991. ; 79:7
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Tidskriftsartikel (refereegranskat)abstract
- There is evidence for an impact of the gut microbiota on the immune system, which has consequences for inflammatory diseases. Exclusive enteral nutrition (EEN) and the specific carbohydrate diet (SCD) have been demonstrated as effective anti-inflammatory treatments for children with Crohn’s disease. We have previously shown an anti-inflammatory effect from these nutritional treatments in children with juvenile idiopathic arthritis (JIA). The aim of this study was to investigate if improved clinical symptoms after EEN or SCD treatment in children with JIA could be linked to changes in faecal microbiota. We included sixteen patients with JIA (age 7–17 years), six for treatment with EEN and ten with SCD. EEN was given for 3–5 weeks and SCD for 4–5 weeks, with clinical and laboratory status assessed before and after treatment. Faecal samples were analysed for microbiota diversity and composition using 16S rRNA gene sequencing. Analyses of the faecal microbiota showed an effect on the overall composition with both interventions; the most striking result was a decreased relative abundance of the genus Faecalibacterium from EEN and of Bifidobacterium from SCD. The α-diversity decreased significantly from SCD (P = 0.04), but not from EEN (P = 0.22). Despite the study cohorts being small, both EEN and SCD were shown to impact the faecal microbiota. Future larger studies with a focus on metagenomics or metabolomics could possibly reveal a link and clarify the clinical effects of those nutritional regimens.
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| 8. |
- Enlund, Karolina Brunius, et al.
(författare)
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Dental home care in dogs-a questionnaire study among Swedish dog owners, veterinarians and veterinary nurses
- 2020
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Ingår i: BMC Veterinary Research. - : Springer Science and Business Media LLC. - 1746-6148. ; 16:1
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Tidskriftsartikel (refereegranskat)abstract
- Background Periodontal disease remains one of the dog's most common health issues, even though it is largely preventable by tooth brushing. Implementation of daily tooth brushing would not only improve animal welfare, but also reduce veterinary costs for the owner. There is a paucity of studies investigating attitudes, opinions and practices of dog owners, veterinarians, and veterinary nurses regarding preventative dental home care in dogs. The objective of this study was to investigate these parameters in Sweden, thereby providing a basis for improved prophylactic strategies. Methods Validated questionnaire surveys were distributed to all Swedish dog owners (n = 209,263), veterinarians (n = 3657) and veterinary nurses (n = 1650) with e-mail addresses in the national registry. The response rates were 32% for dog owners and veterinarians, and 38% for veterinary nurses. The survey questions concerned attitudes, opinions and practices regarding dental home care, including whether dog owners received information concerning dental home care or not, and if this information resulted in implementation. Results Attitudes, opinions and practices regarding dental home care are presented for Swedish dog owners, veterinarians, and veterinary nurses. A fundamental finding was that the absolute majority of Swedish dog owners do not perform adequate prophylactic dental home care. Considerable discrepancies were identified in the opinions of veterinary health practitioners and dog owners regarding attitudes towards dental home care and conveying of information. Several areas for improvement in the communication between dog owners and veterinary health practitioners concerning dental home care were identified. Conclusion Our results illustrates the need for validated methods to increase dog owner compliance with dental home care recommendations. We also see a need of further education, regarding canine dental home care, among veterinarians, veterinary nurses, and dog owners. The results from this unique study constitute an important foundation for future development of prophylactic strategies, with the ultimate goal to improve dental health, and thereby animal welfare, in dogs.
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| 9. |
- Höglund, Odd, et al.
(författare)
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Online dosimetri för temoporfin-medierad interstitiell fotodynamisk terapi av prostata på hund
- 2012
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Ingår i: SUF-nytt. - 2001-3981. ; , s. 34-34
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Annan publikation (refereegranskat)abstract
- Bakgrund: Prostatacancer är vanligt förekommande hos män och orsakar fler dödsfall än andra cancerformer, förutom lungcancer. Ca 1 av 6 män får diagnosen prostatacancer under sin livstid (1, 2). Eftersom kirurgisk behandling och strålning av prostatavävnad orsakar biverkningar, framförallt impotens och inkontinens söks alternativa behandlingsmetoder. Interstitiell fotodynamisk terapi (PDT) är ett alternativ till att behandla tumöromvandlad prostatavävnad. Vid PDT bildas cytotoxiska radikaler som orsakar vävnadsnekros. Med hjälp av Spectracures P18-system erbjuds kontrollerad dosering av energimängden som överförs till prostatan. Syftet med denna studie var att verifiera korrelationen mellan energidos, vävnadsrespons och tröskeldos för induktion av nekros i prostata.Metod: Nio destinationsuppfödda friska beaglar användes i studien. Tre dagar före PDT gavs Temoporfin (Foscan) för fotosensibilisering. Med hjälp av transrektalt ultraljud bedömdes prostatans storlek och dosberäkning utfördes. Sju brakyterapinålar fördes in i prostatan via perineum under guidning av ultraljud och dosberäknad PDT utfördes. Sju dagar efter behandlingen avlivades hundarna.Resultat: Vid histopatologisk undersökning sågs nekroser i prostatan och förändringar i periprostata-vävnaden. En dos-responskorrelation för induktion av nekros bestämdes till 20-30 J/cm2. Online-dosimetri resulterade i mer fokuserad behandling och mindre skada på omkringliggande vävnad jämfört med PDT utan dosimetri.Konklusion: Denna studie visar att temoporfin-medierad interstitiell fotodynamisk terapi kan åstadkomma nekros av prostatavävnad. Metoden är en potentiell alternativ behandling till prostatektomi och brakyterapi.1. National Cancer Institute http://www.cancer.org/Cancer/ProstateCancer/OverviewGuide/prostate-cancer-overview-key-statistics 2. American Cancer Society 2008 Cancer Facts and Figures
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| 10. |
- Velandia, Marianne, et al.
(författare)
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Onset of Vocal Interaction Between Parents and Newborns in Skin-to-Skin Contact Immediately After Elective Cesarean Section
- 2010
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Ingår i: Birth. - : Wiley Periodicals Inc.. - 0730-7659 .- 1523-536X. ; 7:3, s. 192-201
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Tidskriftsartikel (refereegranskat)abstract
- Background: Cesarean section is associated with delayed mother-infant interaction because neither the mother nor the father routinely maintains skin-to-skin contact with the infant after birth. The aim of the study was to explore and compare parent-newborn vocal interaction when the infant is placed in skin-to-skin contact either with the mother or the father immediately after a planned cesarean section. Methods: A total of 37 healthy infants born to primiparas were randomized to 30 minutes of skin-to-skin contact either with fathers or mothers after an initial 5 minutes of skin-to-skin contact with the mothers after birth. The newborns’ and parents’ vocal interaction were recorded on a vid-eotape and audiotape. The following variables were explored: newborns’ and parents’ soliciting, newborns’ crying and whining, and parental speech directed to the other parent and to the newborn. Results: Newborns’ soliciting increased over time (p = 0.032). Both fathers and mothers in skin-to-skin contact communicated more vocally with the newborn than did fathers (p = 0.003) and mothers (p = 0.009) without skin-to-skin contact. Fathers in skin-to-skin contact also communicated more with the mother (p = 0.046) and performed more soliciting responses than the control fathers (p = 0.010). Infants in skin-to-skin con-tact with their fathers cried significantly less than those in skin-to-skin contact with their mothers (p = 0.002) and shifted to a relaxed state earlier than in skin-to-skin contact with mothers (p = 0.029). Conclusions: Skin-to-skin contact between infants and parents immediately after planned cesarean section promotes vocal interaction. When placed in skin-to-skin contact and exposed to the parents’ speech, the infants initiated communication with soliciting calls with the parents within approximately 15 minutes after birth. These findings give reason to encourage parents to keep the newborn in skin-to-skin contact after cesarean section, to support the early onset of the first vocal communication.
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