Structure and Functions of Human Serum Albumin in Normal Conditions and in Patients with Liver Cirrhosis

The aim: to highlight the main points of albumin synthesis, posttranslational modifications and functions in normal conditions and in patients with liver cirrhosis.Key points. Albumin is the most abundant protein in blood plasma. Along with oncotic properties, albumin performs transport, antioxidant...

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Main Authors: A. A. Turkina, M. V. Mayevskaya, M. S. Zharkova, V. T. Ivashkin
Format: Article
Language:Russian
Published: Gastro LLC 2022-12-01
Series:Российский журнал гастроэнтерологии, гепатологии, колопроктологии
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Online Access:https://www.gastro-j.ru/jour/article/view/629
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author A. A. Turkina
M. V. Mayevskaya
M. S. Zharkova
V. T. Ivashkin
author_facet A. A. Turkina
M. V. Mayevskaya
M. S. Zharkova
V. T. Ivashkin
author_sort A. A. Turkina
collection DOAJ
description The aim: to highlight the main points of albumin synthesis, posttranslational modifications and functions in normal conditions and in patients with liver cirrhosis.Key points. Albumin is the most abundant protein in blood plasma. Along with oncotic properties, albumin performs transport, antioxidant, immunomodulatory and endothelioprotective functions. Serum albumin in patient with liver cirrhosis undergoes modifications, leading to functional impairment. Human serum albumin is a compaund of human mercaptalbumin with cysteine residues having a reducing ability, and oxidized human non-mercaptalbumin. The proportion of irreversibly oxidized non-mercaptalbumin-2 with impaired functional activity increases in liver cirrhosis.Conclusion. The conformational structure of the albumin molecule plays an important role in maintaining its non-oncotic functions. Non-oncotic functions depend on albumin conformation. Further investigation of albumin conformation and albumin functions in patients with hepatic insufficiency can serve as an additional criterion for assessing the severity of cirrhosis and predictor of complications may become an additional criterion to new clinical applications and treatment strategies of liver failure.
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publishDate 2022-12-01
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series Российский журнал гастроэнтерологии, гепатологии, колопроктологии
spelling doaj-art-54c7078dcdb443ff9386ff6e552559a52025-02-10T16:14:37ZrusGastro LLCРоссийский журнал гастроэнтерологии, гепатологии, колопроктологии1382-43762658-66732022-12-0132471610.22416/1382-4376-2022-32-4-7-16494Structure and Functions of Human Serum Albumin in Normal Conditions and in Patients with Liver CirrhosisA. A. Turkina0M. V. Mayevskaya1M. S. Zharkova2V. T. Ivashkin3I.M. Sechenov First Moscow State Medical University (Sechenov University)I.M. Sechenov First Moscow State Medical University (Sechenov University)I.M. Sechenov First Moscow State Medical University (Sechenov University)I.M. Sechenov First Moscow State Medical University (Sechenov University)The aim: to highlight the main points of albumin synthesis, posttranslational modifications and functions in normal conditions and in patients with liver cirrhosis.Key points. Albumin is the most abundant protein in blood plasma. Along with oncotic properties, albumin performs transport, antioxidant, immunomodulatory and endothelioprotective functions. Serum albumin in patient with liver cirrhosis undergoes modifications, leading to functional impairment. Human serum albumin is a compaund of human mercaptalbumin with cysteine residues having a reducing ability, and oxidized human non-mercaptalbumin. The proportion of irreversibly oxidized non-mercaptalbumin-2 with impaired functional activity increases in liver cirrhosis.Conclusion. The conformational structure of the albumin molecule plays an important role in maintaining its non-oncotic functions. Non-oncotic functions depend on albumin conformation. Further investigation of albumin conformation and albumin functions in patients with hepatic insufficiency can serve as an additional criterion for assessing the severity of cirrhosis and predictor of complications may become an additional criterion to new clinical applications and treatment strategies of liver failure.https://www.gastro-j.ru/jour/article/view/629albuminposttranslational modificationsnon-mercaptalbumin-2liver cirrhosis
spellingShingle A. A. Turkina
M. V. Mayevskaya
M. S. Zharkova
V. T. Ivashkin
Structure and Functions of Human Serum Albumin in Normal Conditions and in Patients with Liver Cirrhosis
Российский журнал гастроэнтерологии, гепатологии, колопроктологии
albumin
posttranslational modifications
non-mercaptalbumin-2
liver cirrhosis
title Structure and Functions of Human Serum Albumin in Normal Conditions and in Patients with Liver Cirrhosis
title_full Structure and Functions of Human Serum Albumin in Normal Conditions and in Patients with Liver Cirrhosis
title_fullStr Structure and Functions of Human Serum Albumin in Normal Conditions and in Patients with Liver Cirrhosis
title_full_unstemmed Structure and Functions of Human Serum Albumin in Normal Conditions and in Patients with Liver Cirrhosis
title_short Structure and Functions of Human Serum Albumin in Normal Conditions and in Patients with Liver Cirrhosis
title_sort structure and functions of human serum albumin in normal conditions and in patients with liver cirrhosis
topic albumin
posttranslational modifications
non-mercaptalbumin-2
liver cirrhosis
url https://www.gastro-j.ru/jour/article/view/629
work_keys_str_mv AT aaturkina structureandfunctionsofhumanserumalbumininnormalconditionsandinpatientswithlivercirrhosis
AT mvmayevskaya structureandfunctionsofhumanserumalbumininnormalconditionsandinpatientswithlivercirrhosis
AT mszharkova structureandfunctionsofhumanserumalbumininnormalconditionsandinpatientswithlivercirrhosis
AT vtivashkin structureandfunctionsofhumanserumalbumininnormalconditionsandinpatientswithlivercirrhosis