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Sökning: WFRF:(Hirschfield Gideon M)

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11.
  • Murillo Perez, Carla F., et al. (författare)
  • Trends in liver transplantation for autoimmune liver diseases : a Canadian study
  • 2022
  • Ingår i: Canadian journal of surgery. - : CMA Impact Inc.. - 0008-428X .- 1488-2310. ; 65:5, s. E665-E674
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: To our knowledge, no analysis of data from liver transplantation registries exists in Canada. We aimed to describe temporal trends in the number of liver transplantation procedures, patient characteristics and posttransplantation outcomes for autoimmune liver diseases (AILDs) in Canada.Methods: We used administrative data from the Canadian Organ Replacement Register, which contains liver transplantation information from 6 centres in Canada. This study included transplantation information from 5 of the centres, as liver transplantation procedures in children were not included. We included adult (age ≥ 18 yr) patients with a diagnosis of primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC), autoimmune hepatitis (AIH) or overlap syndrome (PBC–AIH or PSC–AIH) who received a liver transplant from 2000 to 2018.Results: Of 5722 primary liver transplantation procedures performed over the study period, 1070 (18.7%) were for an AILD: 489 (45.7%) for PSC, 341 (31.9%) for PBC, 220 (20.6%) for AIH and 20 (1.9%) for overlap syndrome. There was a significant increase in the absolute number of procedures for PSC, with a yearly increase of 0.6 (95% confidence interval 0.1 to 1.2), whereas the absolute number of procedures for PBC and AIH remained stable. The proportion of transplantation procedures decreased for PBC and AIH but remained stable for PSC. Recipient age at transplantation increased over time for males with PBC (median 53 yr in 2000–2005 to 57 yr in 2012–2018, p = 0.03); whereas the median age among patients with AIH decreased, from 53 years in 2000–2005 to 44 years in 2006–2011 (p = 0.03). The Model for Endstage Liver Disease score at the time of transplantation increased over time for all AILDs, particularly AIH (median 16 in 2000–2005 v. 24 in 2012–2018, p < 0.001). There was a trend toward improved survival in the PBC group, with a 5-year survival rate of 81% in 2000–2005 and 90% in 2012–2018 (p = 0.06).Conclusion: Between 2000 and 2018, the absolute number of liver transplantation procedures in Canada increased for PSC but remained stable for PBC and AIH; proportionally, PBC and AIH decreased as indications for transplantation. Posttransplantation survival improved only for the PBC group. An improved understanding of trends and outcomes on a national scale among patients with AILD undergoing liver transplantation can identify disparities and areas for potential health care improvement.
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12.
  • Nevens, Frederik, et al. (författare)
  • A Placebo-Controlled Trial of Obeticholic Acid in Primary Biliary Cholangitis.
  • 2016
  • Ingår i: The New England journal of medicine. - 1533-4406. ; 375:7, s. 631-43
  • Tidskriftsartikel (refereegranskat)abstract
    • Primary biliary cholangitis (formerly called primary biliary cirrhosis) can progress to cirrhosis and death despite ursodiol therapy. Alkaline phosphatase and bilirubin levels correlate with the risk of liver transplantation or death. Obeticholic acid, a farnesoid X receptor agonist, has shown potential benefit in patients with this disease.
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13.
  • Sharma, Rohan, et al. (författare)
  • Rare X Chromosome Abnormalities in Systemic Lupus Erythematosus and Sjogrens Syndrome
  • 2017
  • Ingår i: Arthritis & Rheumatology. - : WILEY. - 2326-5191 .- 2326-5205. ; 69:11, s. 2187-2192
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. Sjogrens syndrome (SS) and systemic lupus erythematosus (SLE) are related by clinical and serologic manifestations as well as genetic risks. Both diseases are more commonly found in women than in men, at a ratio of similar to 10 to 1. Common X chromosome aneuploidies, 47,XXY and 47,XXX, are enriched among men and women, respectively, in either disease, suggesting a dose effect on the X chromosome. Methods. We examined cohorts of SS and SLE patients by constructing intensity plots of X chromosome single-nucleotide polymorphism alleles, along with determining the karyotype of selected patients. Results. Among similar to 2,500 women with SLE, we found 3 patients with a triple mosaic, consisting of 45,X/46,XX/47,XXX. Among similar to 2,100 women with SS, 1 patient had 45,X/46,XX/47,XXX, with a triplication of the distal p arm of the X chromosome in the 47,XXX cells. Neither the triple mosaic nor the partial triplication was found among the controls. In another SS cohort, we found a mother/daughter pair with partial triplication of this same region of the X chromosome. The triple mosaic occurs in similar to 1 in 25,000-50,000 live female births, while partial triplications are even rarer. Conclusion. Very rare X chromosome abnormalities are present among patients with either SS or SLE and may inform the location of a gene(s) that mediates an X dose effect, as well as critical cell types in which such an effect is operative.
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