The Vicious Circle of Hepatic Glucagon Resistance in Non-Alcoholic Fatty Liver Disease

A key criterion for the most common chronic liver disease—non-alcoholic fatty liver disease (NAFLD)—is an intrahepatic fat content above 5% in individuals who are not using steatogenic agents or having significant alcohol intake. Subjects with NAFLD have increased plasma concentrations of glucagon,...

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Main Author: Katrine D. Galsgaard
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/9/12/4049
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author Katrine D. Galsgaard
author_facet Katrine D. Galsgaard
author_sort Katrine D. Galsgaard
collection DOAJ
description A key criterion for the most common chronic liver disease—non-alcoholic fatty liver disease (NAFLD)—is an intrahepatic fat content above 5% in individuals who are not using steatogenic agents or having significant alcohol intake. Subjects with NAFLD have increased plasma concentrations of glucagon, and emerging evidence indicates that subjects with NAFLD may show hepatic glucagon resistance. For many years, glucagon has been thought of as the counterregulatory hormone to insulin with a primary function of increasing blood glucose concentrations and protecting against hypoglycemia. However, in recent years, glucagon has re-emerged as an important regulator of other metabolic processes including lipid and amino acid/protein metabolism. This review discusses the evidence that in NAFLD, hepatic glucagon resistance may result in a dysregulated lipid and amino acid/protein metabolism, leading to excess accumulation of fat, hyperglucagonemia, and increased oxidative stress contributing to the worsening/progression of NAFLD.
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spelling doaj.art-15bcae67b83a4d678fddf7c9643c3e722023-11-21T00:52:08ZengMDPI AGJournal of Clinical Medicine2077-03832020-12-01912404910.3390/jcm9124049The Vicious Circle of Hepatic Glucagon Resistance in Non-Alcoholic Fatty Liver DiseaseKatrine D. Galsgaard0Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, DenmarkA key criterion for the most common chronic liver disease—non-alcoholic fatty liver disease (NAFLD)—is an intrahepatic fat content above 5% in individuals who are not using steatogenic agents or having significant alcohol intake. Subjects with NAFLD have increased plasma concentrations of glucagon, and emerging evidence indicates that subjects with NAFLD may show hepatic glucagon resistance. For many years, glucagon has been thought of as the counterregulatory hormone to insulin with a primary function of increasing blood glucose concentrations and protecting against hypoglycemia. However, in recent years, glucagon has re-emerged as an important regulator of other metabolic processes including lipid and amino acid/protein metabolism. This review discusses the evidence that in NAFLD, hepatic glucagon resistance may result in a dysregulated lipid and amino acid/protein metabolism, leading to excess accumulation of fat, hyperglucagonemia, and increased oxidative stress contributing to the worsening/progression of NAFLD.https://www.mdpi.com/2077-0383/9/12/4049autophagyamino acidsglucagonNAFLDthe liver–alpha cell axis
spellingShingle Katrine D. Galsgaard
The Vicious Circle of Hepatic Glucagon Resistance in Non-Alcoholic Fatty Liver Disease
Journal of Clinical Medicine
autophagy
amino acids
glucagon
NAFLD
the liver–alpha cell axis
title The Vicious Circle of Hepatic Glucagon Resistance in Non-Alcoholic Fatty Liver Disease
title_full The Vicious Circle of Hepatic Glucagon Resistance in Non-Alcoholic Fatty Liver Disease
title_fullStr The Vicious Circle of Hepatic Glucagon Resistance in Non-Alcoholic Fatty Liver Disease
title_full_unstemmed The Vicious Circle of Hepatic Glucagon Resistance in Non-Alcoholic Fatty Liver Disease
title_short The Vicious Circle of Hepatic Glucagon Resistance in Non-Alcoholic Fatty Liver Disease
title_sort vicious circle of hepatic glucagon resistance in non alcoholic fatty liver disease
topic autophagy
amino acids
glucagon
NAFLD
the liver–alpha cell axis
url https://www.mdpi.com/2077-0383/9/12/4049
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