Search results for "PNPLA3"
showing 7 items of 17 documents
Caucasian lean subjects with non-alcoholic fatty liver disease share long-term prognosis of non-lean: Time for reappraisal of BMI-driven approach?
2021
[Objective] The full phenotypic expression of non-alcoholic fatty liver disease (NAFLD) in lean subjects is incompletely characterised. We aimed to investigate prevalence, characteristics and long-term prognosis of Caucasian lean subjects with NAFLD.
Identification of molecular pathophysiological mechanisms of non-alcoholic fatty liver disease (NAFLD)
2018
Alkohola neizraisītā taukaino aknu slimība (NATAS) ietver plaša spektra izmaiņas aknās: no pārmērīgas tauku uzkrāšanās līdz pat cirozei. NATAS ģenētiskās komponentes noteikšanai tika veikta visa genoma asociāciju pētījumus (GWAS). Polimorfismi Pnpla3 (I148M; rs738409) un Tm6sf2 (E167K; rs58542926) gēnos ir asociēti ar paaugstinātu lipīdu uzkrāšanos aknās. PNPLA3 I148M varianta proteīns pastiprināti uzkrājas uz šūnu tauku lodīšu virsmas, kas traucē tauku lodīšu normālu funkciju. Proteīna TM6SF2 167K variants izraisa proteīna nestabilitāti un ātrāku tā degradāciju. Tālākie pētījumi parāda, ka TM6SF2 ir saistīts ar aknu ļoti zema blīvuma lipoproteīnu (VLDL) veidošanu vai ekskrēciju. Izpratne p…
The burden of hepatocellular carcinoma in non-alcoholic fatty liver disease: Screening issue and future perspectives
2019
In recent decades, non-alcoholic fatty liver disease (NAFLD) has become the most common liver disease in the Western world, and the occurrence of its complications, such as hepatocellular carcinoma (HCC), has rapidly increased. Obesity and diabetes are considered not only the main triggers for the development of the disease, but also two independent risk factors for HCC. Single nucleotide polymorphisms (such as PNPLA3, TM6SF2 and MBOAT7) are related to the susceptibility to the development of HCC and its progression. Therefore, an appropriate follow-up of these patients is needed for the early diagnosis and treatment of HCC. To date, international guidelines recommend the use of ultrasonogr…
Mboat7 down-regulation by hyper-insulinemia induces fat accumulation in hepatocytes.
2020
Background: Naturally occurring variation in Membrane-bound O-acyltransferase domain-containing 7 (MBOAT7), encoding for an enzyme involved in phosphatidylinositol acyl-chain remodelling, has been associated with fatty liver and hepatic disorders. Here, we examined the relationship between hepatic Mboat7 down-regulation and fat accumulation. Methods: Hepatic MBOAT7 expression was surveyed in 119 obese individuals and in experimental models. MBOAT7 was acutely silenced by antisense oligonucleotides in C57Bl/6 mice, and by CRISPR/Cas9 in HepG2 hepatocytes. Findings: In obese individuals, hepatic MBOAT7 mRNA decreased from normal liver to steatohepatitis, independently of diabetes, inflammatio…
RUOLO DEL POLIMORFISMO ILE148MET DEL GENE PNPLA3 NELLA STEATOSI ASSOCIATA ALLA IPOBETALIPOPROTEINEMIA FAMILIARE
2014
Ruolo del gene PNPLA3 nella suscettibilità genetica della suscettibilità genetica della steatosi epatica
IL28B and PNPLA3 Polymorphisms Affect Histological Liver Damage in Patients with Non-alcoholic Fatty Liver Disease.
2012
Background & Aims: Genetic background may affect liver damage in patients with non-alcoholic fatty liver disease (NAFLD). The main outcomes of the study were to assess whether IL28B rs12979860 and rs8099917 polymorphisms, together with PNPLA3 rs738409 C>G polymorphism, are associated with lobular inflammation and fibrosis, in NAFLD patients. Methods: One hundred sixty consecutive NAFLD patients were assessed by liver biopsy (Kleiner score); anthropometric, and biochemical and metabolic features were included. IL28B rs12979860 C>T, IL28B rs8099917 G>C, and PNPLA3 rs738409 C>G single nucleotide polymorphisms were tested. Results: Seventy-four (46.2%) patients had IL28B rs12979860 CC polymorph…