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- Buch, S., et al.
(författare)
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Genetic variation in TERT modifies the risk of hepatocellular carcinoma in alcohol-related cirrhosis: results from a genome-wide case-control study
- 2023
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Ingår i: Gut. - : BMJ. - 0017-5749 .- 1468-3288. ; 72:2, s. 381-391
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Tidskriftsartikel (refereegranskat)abstract
- Objective Hepatocellular carcinoma (HCC) often develops in patients with alcohol-related cirrhosis at an annual risk of up to 2.5%. Some host genetic risk factors have been identified but do not account for the majority of the variance in occurrence. This study aimed to identify novel susceptibility loci for the development of HCC in people with alcohol related cirrhosis. Design Patients with alcohol-related cirrhosis and HCC (cases: n=1214) and controls without HCC (n=1866), recruited from Germany, Austria, Switzerland, Italy and the UK, were included in a two-stage genome-wide association study using a case-control design. A validation cohort of 1520 people misusing alcohol but with no evidence of liver disease was included to control for possible association effects with alcohol misuse. Genotyping was performed using the InfiniumGlobal Screening Array (V.24v2, Illumina) and the OmniExpress Array (V.24v1-0a, Illumina). Results Associations with variants rs738409 in PNPLA3 and rs58542926 in TM6SF2 previously associated with an increased risk of HCC in patients with alcohol-related cirrhosis were confirmed at genome-wide significance. A novel locus rs2242652(A) in TERT (telomerase reverse transcriptase) was also associated with a decreased risk of HCC, in the combined meta-analysis, at genome-wide significance (p=6.41x10(-9), OR=0.61 (95% CI 0.52 to 0.70). This protective association remained significant after correction for sex, age, body mass index and type 2 diabetes (p=7.94x10(-5), OR=0.63 (95% CI 0.50 to 0.79). Carriage of rs2242652(A) in TERT was associated with an increased leucocyte telomere length (p=2.12x10(-44)). Conclusion This study identifies rs2242652 in TERT as a novel protective factor for HCC in patients with alcohol-related cirrhosis.
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- Teo, Kevin, et al.
(författare)
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rs641738C>T near MBOAT7 is associated with liver fat, ALT, and fibrosis in NAFLD: a meta-analysis.
- 2021
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Ingår i: Journal of hepatology. - : Elsevier BV. - 1600-0641 .- 0168-8278. ; 74:1, s. 20-30
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Tidskriftsartikel (refereegranskat)abstract
- A common genetic variant near MBOAT7 (rs641738C>T) has been previously associated with hepatic fat and advanced histology in non-alcoholic fatty liver disease (NAFLD), however, these findings have not been consistently replicated in the literature. We aimed to establish whether rs641738C>T is a risk factor across the spectrum of NAFLD and characterize its role in the regulation of related metabolic phenotypes through meta-analysis.We performed meta-analysis of studies with data on the association between rs641738C>T genotype and: liver fat, NAFLD histology, and serum ALT, lipids, or insulin. These included directly genotyped studies and population-level data from genome-wide association studies (GWAS). We performed random effects meta-analysis using recessive, additive, and dominant genetic models.Data from 1,066,175 participants (9,688 with liver biopsies) across 42 studies were included in the meta-analysis. rs641738C>T was associated with higher liver fat on CT/MRI (+0.03 standard deviations [95% CI: 0.02 - 0.05], pz=4.8x10-5) and diagnosis of NAFLD (OR 1.17 [95% CI 1.05 - 1.3], pz=0.003) in Caucasian adults. The variant was also positively associated with presence of advanced fibrosis (OR 1.22 [95% CI: 1.03 - 1.45], pz=0.021) in Caucasian adults using a recessive model of inheritance (CC+CT vs. TT). Meta-analysis of data from previous GWAS found the variant to be associated with higher ALT (pz=0.002) and lower serum triglycerides (pz=1.5x10-4). rs641738C>T was not associated with fasting insulin and no effect was observed in children with NAFLD.Our study validates rs641738C>T near MBOAT7 as a risk factor for the presence and severity of NAFLD in individuals of European descent.
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- Jendle, Johan, 1963-, et al.
(författare)
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Willingness to pay for health improvements associated with anti-diabetes treatments for people with type 2 diabetes
- 2010
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Ingår i: Current Medical Research and Opinion. - : Informa Healthcare. - 1473-4877 .- 0300-7995. ; 26:4, s. 917-923
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: This study aimed to investigate the most important consequences of diabetes medication, as measured by the patients' willingness to pay (WTP). Research design and methods: People in Sweden were recruited using existing nationwide e-mail panels if they were adults (>= 18 years) with type 2 diabetes and were receiving pharmacological anti-diabetes treatment(s). Data were collected electronically and results were analysed using a standard statistical model designed for choice games (conditional logit). Six characteristics relating to treatment of diabetes were examined: weight (gain or loss), mean glycated haemoglobin level (HbA(1c)), hypoglycaemic events, nausea, need for injections (with or independently of meals), and blood glucose testing. Results: A total of 461 people with type 2 diabetes (291 males; 170 females) completed an internet questionnaire and were eligible for inclusion. Participants placed high value on weight loss and nausea avoidance; they would pay 176 Swedish Krona (SEK)/(sic)15.61 per month to lose 1 kg, and would pay SEK 560 ((sic)49.67) per month to avoid nausea completely. Patients wanting to reduce the number of hypoglycaemic events from three per month to none were willing to pay SEK 419 ((sic)37.17) per month. Patients valued a 1 percentage point reduction in HbA(1c) at SEK 414 ((sic)36.72) per month. Participants preferred taking tablets to injections and required a compensation of SEK 376 ((sic)33.35) to accept one injection/day. Injections independent of meals were preferred to injections with meals (WTP: SEK 140/(sic)12.42 per month). Potential limitations of this study are that the preferences expressed may not match preferences in real-life situations, and bias through the use of electronic questionnaire, which restricted participation to those with access to, and experience with, the internet. Conclusion: People with type 2 diabetes were willing to pay a considerable amount of money each month to lose weight, reduce or avoid hypoglycaemic events and reduce HbA(1C).
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- Krawczyk, M., et al.
(författare)
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Variant adiponutrin confers genetic protection against cholestatic itch
- 2014
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Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 4
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Tidskriftsartikel (refereegranskat)abstract
- Lysophosphatidic acid (LPA) mediates cholestatic pruritus. Recently the enzyme PNPLA3, expressed in liver and skin, was demonstrated to metabolise LPA. Here we assess the association of the PNPLA3 variant p.Ile148Met, known to be associated with (non-)alcoholic fatty liver disease (NAFLD) in genome-wide association studies, with cholestatic itch in 187 patients with primary biliary cirrhosis (PBC) and 250 PBC-free controls as well as 201 women with intrahepatic cholestasis of pregnancy (ICP) and 198 female controls without a history of ICP. Our hypothesis was that the intensity of cholestatic itch differs in carriers of distinct PNPLA3 p.Ile148Met genotypes. Patients with PBC carrying the allele p.148Met that confers an increased NAFLD risk reported less itching than carriers of the p.148Ile allele (ANOVA P = 0.048). The PNPLA3 p.148Ile allele increased the odds of requiring plasmapheresis for refractory pruritus (OR = 3.94, 95% CI = 0.91-17.00, P = 0.048). In line with these findings, the PNPLA3 p.148Met allele was underrepresented in the ICP cohort (OR = 0.66, 95% CI = 0.47-0.92, P = 0.013). Notwithstanding the need for further replication of these findings, we conclude that the PNPLA3 allele p.148Met might confer protection against cholestatic pruritus, possibly due to increased LPA-acyltransferase activity in liver and/or skin.
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- Valentine, W. J., et al.
(författare)
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Evaluating the cost-effectiveness of reduced mild hypoglycaemia in subjects with Type 1 diabetes treated with insulin detemir or NPH insulin in Denmark, Sweden, Finland and the Netherlands
- 2012
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Ingår i: Diabetic Medicine. - : Wiley-Blackwell Publishing Inc.. - 0742-3071 .- 1464-5491. ; 29:3, s. 303-312
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: To estimate short-term cost-effectiveness of insulin detemir vs. NPH insulin based on the incidence of mild hypoglycaemia in subjects with Type 1 diabetes in Denmark, Sweden, Finland and the Netherlands.METHODS: A model was developed to evaluate cost-effectiveness based on mild (self-treated) hypoglycaemia and pharmacy costs over 1 year. Published rates of mild hypoglycaemia were used for NPH insulin and insulin detemir. Effectiveness was calculated in terms of quality-adjusted life expectancy. Pharmacy costs were accounted using published prices and defined daily doses for both insulins. Costs were expressed in 2010 euros (€).RESULTS: Treatment with insulin detemir was associated with fewer mild hypoglycaemic events than NPH insulin (mean rates of 26.3 vs. 35.5 events per person-year), leading to an improvement in mean quality-adjusted life expectancy of approximately 0.019 (0.030) quality-adjusted life years (standard deviation). Annual costs were € 573.55 (110.42) vs. € 332.76 (62.18) in Denmark for insulin detemir and NPH insulin, respectively. These values were € 545.79 (106.54) vs. € 306.12 (57.78) in Sweden, € 720.10 (140.74) vs. € 408.73 (78.61) in Finland and € 584.01 (109.47) vs. € 359.60 (64.84) in the Netherlands. Incremental cost-effectiveness ratios were approximately € 12,644 (Denmark), € 12,612 (Sweden), € 16,568 (Finland) and € 12,216 (the Netherlands) per quality-adjusted life year gained for insulin detemir vs. NPH insulin.CONCLUSIONS: Insulin detemir is likely to be cost-effective vs. NPH insulin in subjects with Type 1 diabetes in Denmark, Sweden, Finland and the Netherlands. Increased pharmacy costs with insulin detemir should not be a barrier to therapy based on these findings.
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- Marschall, HU, et al.
(författare)
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Jaundice
- 2003
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Ingår i: Scandinavian journal of gastroenterology. - : Informa UK Limited. - 0036-5521 .- 1502-7708. ; 38:3, s. 233-234
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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- Urner, Sofia, et al.
(författare)
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Identification of ILK as a critical regulator of VEGFR3 signalling and lymphatic vascular growth
- 2019
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Ingår i: EMBO Journal. - : WILEY. - 0261-4189 .- 1460-2075. ; 38:2
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Tidskriftsartikel (refereegranskat)abstract
- Vascular endothelial growth factor receptor-3 (VEGFR3) signalling promotes lymphangiogenesis. While there are many reported mechanisms of VEGFR3 activation, there is little understanding of how VEGFR3 signalling is attenuated to prevent lymphatic vascular overgrowth and ensure proper lymph vessel development. Here, we show that endothelial cell-specific depletion of integrin-linked kinase (ILK) in mouse embryos hyper-activates VEGFR3 signalling and leads to overgrowth of the jugular lymph sacs/primordial thoracic ducts, oedema and embryonic lethality. Lymphatic endothelial cell (LEC)-specific deletion of Ilk in adult mice initiates lymphatic vascular expansion in different organs, including cornea, skin and myocardium. Knockdown of ILK in human LECs triggers VEGFR3 tyrosine phosphorylation and proliferation. ILK is further found to impede interactions between VEGFR3 and beta 1 integrin in vitro and in vivo, and endothelial cell-specific deletion of an Itgb1 allele rescues the excessive lymphatic vascular growth observed upon ILK depletion. Finally, mechanical stimulation disrupts the assembly of ILK and beta 1 integrin, releasing the integrin to enable its interaction with VEGFR3. Our data suggest that ILK facilitates mechanically regulated VEGFR3 signalling via controlling its interaction with beta 1 integrin and thus ensures proper development of lymphatic vessels.
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- Verweij, Niek, et al.
(författare)
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Germline Mutations in CIDEB and Protection against Liver Disease
- 2022
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Ingår i: New England Journal of Medicine. - 0028-4793. ; 387:4, s. 332-344
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND Exome sequencing in hundreds of thousands of persons may enable the identification of rare protein-coding genetic variants associated with protection from human diseases like liver cirrhosis, providing a strategy for the discovery of new therapeutic targets. METHODS We performed a multistage exome sequencing and genetic association analysis to identify genes in which rare protein-coding variants were associated with liver phenotypes. We conducted in vitro experiments to further characterize associations. RESULTS The multistage analysis involved 542,904 persons with available data on liver aminotransferase levels, 24,944 patients with various types of liver disease, and 490,636 controls without liver disease. We found that rare coding variants in APOB, ABCB4, SLC30A10, and TM6SF2 were associated with increased aminotransferase levels and an increased risk of liver disease. We also found that variants in CIDEB, which encodes a structural protein found in hepatic lipid droplets, had a protective effect. The burden of rare predicted loss-of-function variants plus missense variants in CIDEB (combined carrier frequency, 0.7%) was associated with decreased alanine aminotransferase levels (beta per allele, -1.24 U per liter; 95% confidence interval [CI], -1.66 to -0.83; P=4.8×10-9) and with 33% lower odds of liver disease of any cause (odds ratio per allele, 0.67; 95% CI, 0.57 to 0.79; P=9.9×10-7). Rare coding variants in CIDEB were associated with a decreased risk of liver disease across different underlying causes and different degrees of severity, including cirrhosis of any cause (odds ratio per allele, 0.50; 95% CI, 0.36 to 0.70). Among 3599 patients who had undergone bariatric surgery, rare coding variants in CIDEB were associated with a decreased nonalcoholic fatty liver disease activity score (beta per allele in score units, -0.98; 95% CI, -1.54 to -0.41 [scores range from 0 to 8, with higher scores indicating more severe disease]). In human hepatoma cell lines challenged with oleate, CIDEB small interfering RNA knockdown prevented the buildup of large lipid droplets. CONCLUSIONS Rare germline mutations in CIDEB conferred substantial protection from liver disease.
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