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- Ken-Dror, G., et al.
(författare)
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Genome-Wide Association Study Identifies First Locus Associated with Susceptibility to Cerebral Venous Thrombosis
- 2021
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Ingår i: Annals of Neurology. - : Wiley. - 0364-5134 .- 1531-8249. ; 90:5, s. 777-788
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Tidskriftsartikel (refereegranskat)abstract
- Objective Cerebral venous thrombosis (CVT) is an uncommon form of stroke affecting mostly young individuals. Although genetic factors are thought to play a role in this cerebrovascular condition, its genetic etiology is not well understood. Methods A genome-wide association study was performed to identify genetic variants influencing susceptibility to CVT. A 2-stage genome-wide study was undertaken in 882 Europeans diagnosed with CVT and 1,205 ethnicity-matched control subjects divided into discovery and independent replication datasets. Results In the overall case-control cohort, we identified highly significant associations with 37 single nucleotide polymorphisms (SNPs) within the 9q34.2 region. The strongest association was with rs8176645 (combined p = 9.15 x 10(-24); odds ratio [OR] = 2.01, 95% confidence interval [CI] = 1.76-2.31). The discovery set findings were validated across an independent European cohort. Genetic risk score for this 9q34.2 region increases CVT risk by a pooled estimate OR = 2.65 (95% CI = 2.21-3.20, p = 2.00 x 10(-16)). SNPs within this region were in strong linkage disequilibrium (LD) with coding regions of the ABO gene. The ABO blood group was determined using allele combination of SNPs rs8176746 and rs8176645. Blood groups A, B, or AB, were at 2.85 times (95% CI = 2.32-3.52, p = 2.00 x 10(-16)) increased risk of CVT compared with individuals with blood group O. Interpretation We present the first chromosomal region to robustly associate with a genetic susceptibility to CVT. This region more than doubles the likelihood of CVT, a risk greater than any previously identified thrombophilia genetic risk marker. That the identified variant is in strong LD with the coding region of the ABO gene with differences in blood group prevalence provides important new insights into the pathophysiology of CVT. ANN NEUROL 2021
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- Ranjan, R., et al.
(författare)
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Age of onset of cerebral venous thrombosis: the BEAST study
- 2023
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Ingår i: European Stroke Journal. - : SAGE Publications. - 2396-9873 .- 2396-9881. ; 8:1, s. 344-350
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Tidskriftsartikel (refereegranskat)abstract
- Background: Cerebral venous thrombosis (CVT) is an uncommon cause of stroke in young adults. We aimed to determine the impact of age, gender and risk factors (including sex-specific) on CVT onset. Methods: We used data from the BEAST (Biorepository to Establish the Aetiology of Sinovenous Thrombosis), a multicentre multinational prospective observational study on CVT. Composite factors analysis (CFA) was performed to determine the impact on the age of CVT onset in males and females. Results: A total of 1309 CVT patients (75.3% females) aged > 18 years were recruited. The overall median (IQR-interquartile range) age for males and females was 46 (35-58) years and 37 (28-47) years (p < 0.001), respectively. However, the presence of antibiotic-requiring sepsis (p = 0.03, 95% CI 27-47 years) among males and gender-specific risk factors like pregnancy (p < 0.001, 95% CI 29-34 years), puerperium (p < 0.001, 95% CI 26-34 years) and oral contraceptive use (p < 0.001, 95% CI 33-36 years) were significantly associated with earlier onset of CVT among females. CFA demonstrated a significantly earlier onset of CVT in females, similar to 12 years younger, in those with multiple (> 1) compared to '0' risk factors (p < 0.001, 95% CI 32-35 years). Conclusions: Women suffer CVT 9 years earlier in comparison to men. Female patients with multiple (> 1) risk factors suffer CVT similar to 12 years earlier compared to those with no identifiable risk factors.
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- Kald, A, et al.
(författare)
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Reoperation as surrogate endpoint in hernia surgery. A three year follow-up of 1565 herniorrhaphies.
- 1998
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Ingår i: European Journal of Surgery. - : Oxford University Press (OUP). - 1102-4151 .- 1741-9271. ; 164:1, s. 45-50
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Analysis of reoperation and recurrence rates three years after repair of groin hernias.DESIGN: Prospective audit by questionnaire and selective follow-up.SETTING: Eight Swedish hospitals.SUBJECTS: All groin hernia operations done during 1992 on patients between the ages of 15 and 80 years.MAIN OUTCOME MEASURES: Postoperative complications, reoperation for recurrence, and recurrence.RESULTS: During 1992, 1565 hernia operations were done. The postoperative complication rate was 8% (125/1565). At 36 months postoperatively 108 recurrences had already been reoperated on, six patients with recurrences were on the waiting list for reoperation and a further 36 recurrences had been detected at follow-up. The interhospital variation in recurrence rate ranged from 3% to 20%. Postoperative complications, recurrent hernia, direct hernia and hospital catchment area over 100000 inhabitants were all factors associated with an increased relative risk of recurrence.CONCLUSIONS: The recurrence rate exceeded the reoperation rate for recurrence by almost 40% which should be taken into account if the reoperation rate is used as the endpoint after repairs of groin hernia. An audit scheme, based on prospective recording, reoperation rate, and (periodic) calculation of the recurrence rate may be used to identify risk factors for recurrence and areas in need of improvement.
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- Flanagan, Sarah E, et al.
(författare)
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Activating germline mutations in STAT3 cause early-onset multi-organ autoimmune disease.
- 2014
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Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1546-1718 .- 1061-4036. ; 46:8, s. 812-814
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Tidskriftsartikel (refereegranskat)abstract
- Monogenic causes of autoimmunity provide key insights into the complex regulation of the immune system. We report a new monogenic cause of autoimmunity resulting from de novo germline activating STAT3 mutations in five individuals with a spectrum of early-onset autoimmune disease, including type 1 diabetes. These findings emphasize the critical role of STAT3 in autoimmune disease and contrast with the germline inactivating STAT3 mutations that result in hyper IgE syndrome.
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