Pathogenic role of lipids in non-alcoholic fatty liver disease

The aim of review. To discuss main concepts on the damaging role of lipids in non-alcoholic fatty liver diseases (NAFLD) pathogenesis.Original points. According to modern concepts, at NAFLD stress of endoplasmic reticulum plays the central role in damage of liver cells which is accompanied by dysfun...

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Main Author: Yu. O. Shulpekova
Format: Article
Language:Russian
Published: Gastro LLC 2012-02-01
Series:Российский журнал гастроэнтерологии, гепатологии, колопроктологии
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Online Access:https://www.gastro-j.ru/jour/article/view/1261
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author Yu. O. Shulpekova
author_facet Yu. O. Shulpekova
author_sort Yu. O. Shulpekova
collection DOAJ
description The aim of review. To discuss main concepts on the damaging role of lipids in non-alcoholic fatty liver diseases (NAFLD) pathogenesis.Original points. According to modern concepts, at NAFLD stress of endoplasmic reticulum plays the central role in damage of liver cells which is accompanied by dysfunction of chaperone proteins. The subsequent biochemical changes cause disorders of cellular respiration, disorder of mitochondrial integrity, increase probability of hepatocyte death. Excessive accumulation of free fatty acids acts as direct impulse for development of endoplasmic reticulum stress, and resulting events inside a cell are named «lipotoxic stress» or «lipoapoptosis». Saturated fatty acids – palmitic and stearinic have maximal damaging potential, that, probably, is related to slower incorporation of esters. In NAFLD pathogenesis other damaging factors, e.g. oxidative stress play important role, therefore the theory of «multiple collateral impulses» is justified today. Unsaturated fatty acids, essential phospholipids, antioxidants, silymarinum, hypolipidemic agents, glitazones can have protective action. Potential of medical application of caspase inhibitors, cathepsine B, JNKkinase and «chemical chaperones» is under investigation.Conclusion. Lipoapoptosis is considered as cardinal marker of NAFLD, and free fatty acids – as activators of the programmed death of hepatocytes. The further studying molecular events at lipotoxic stress will, probably, open new era in the treatment of fatty liver disease.
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spelling doaj-art-dfe76f86e3254522bb9a5bc5f18624582025-02-10T16:14:31ZrusGastro LLCРоссийский журнал гастроэнтерологии, гепатологии, колопроктологии1382-43762658-66732012-02-012214556842Pathogenic role of lipids in non-alcoholic fatty liver diseaseYu. O. Shulpekova0ГБОУ ВПО «Первый Московский государственный медицинский университет им. И.М. Сеченова» РосздраваThe aim of review. To discuss main concepts on the damaging role of lipids in non-alcoholic fatty liver diseases (NAFLD) pathogenesis.Original points. According to modern concepts, at NAFLD stress of endoplasmic reticulum plays the central role in damage of liver cells which is accompanied by dysfunction of chaperone proteins. The subsequent biochemical changes cause disorders of cellular respiration, disorder of mitochondrial integrity, increase probability of hepatocyte death. Excessive accumulation of free fatty acids acts as direct impulse for development of endoplasmic reticulum stress, and resulting events inside a cell are named «lipotoxic stress» or «lipoapoptosis». Saturated fatty acids – palmitic and stearinic have maximal damaging potential, that, probably, is related to slower incorporation of esters. In NAFLD pathogenesis other damaging factors, e.g. oxidative stress play important role, therefore the theory of «multiple collateral impulses» is justified today. Unsaturated fatty acids, essential phospholipids, antioxidants, silymarinum, hypolipidemic agents, glitazones can have protective action. Potential of medical application of caspase inhibitors, cathepsine B, JNKkinase and «chemical chaperones» is under investigation.Conclusion. Lipoapoptosis is considered as cardinal marker of NAFLD, and free fatty acids – as activators of the programmed death of hepatocytes. The further studying molecular events at lipotoxic stress will, probably, open new era in the treatment of fatty liver disease.https://www.gastro-j.ru/jour/article/view/1261saturated and unsaturated fatty acidslipotoxicoxidative stressnon-alcoholic fatty liver diseasepathogenesistreatment
spellingShingle Yu. O. Shulpekova
Pathogenic role of lipids in non-alcoholic fatty liver disease
Российский журнал гастроэнтерологии, гепатологии, колопроктологии
saturated and unsaturated fatty acids
lipotoxic
oxidative stress
non-alcoholic fatty liver disease
pathogenesis
treatment
title Pathogenic role of lipids in non-alcoholic fatty liver disease
title_full Pathogenic role of lipids in non-alcoholic fatty liver disease
title_fullStr Pathogenic role of lipids in non-alcoholic fatty liver disease
title_full_unstemmed Pathogenic role of lipids in non-alcoholic fatty liver disease
title_short Pathogenic role of lipids in non-alcoholic fatty liver disease
title_sort pathogenic role of lipids in non alcoholic fatty liver disease
topic saturated and unsaturated fatty acids
lipotoxic
oxidative stress
non-alcoholic fatty liver disease
pathogenesis
treatment
url https://www.gastro-j.ru/jour/article/view/1261
work_keys_str_mv AT yuoshulpekova pathogenicroleoflipidsinnonalcoholicfattyliverdisease