scholarly journals Role of liver sinusoidal endothelial cells in non-alcoholic fatty liver disease

2019 ◽  
Vol 70 (6) ◽  
pp. 1278-1291 ◽  
Author(s):  
Adel Hammoutene ◽  
Pierre-Emmanuel Rautou
Keyword(s):  
Endothelial Cells ◽  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Liver Sinusoidal Endothelial Cells ◽  
Sinusoidal Endothelial Cells ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

Changes induced by non-alcoholic fatty liver disease in liver sinusoidal endothelial cells and hepatocytes: spectroscopic imaging of single live cells at the subcellular level

The Analyst ◽  
2017 ◽  
Vol 142 (20) ◽  
pp. 3948-3958 ◽  
Author(s):  
Kamila Kochan ◽  
Edyta Kus ◽  
Ewelina Szafraniec ◽  
Adrianna Wislocka ◽  
Stefan Chlopicki ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Liver Disease ◽  
Fatty Liver Disease ◽  
Liver Disorder ◽  
Live Cells ◽  
Liver Sinusoidal Endothelial Cells ◽  
Sinusoidal Endothelial Cells ◽  
Alcoholic Fatty Liver ◽  
Subcellular Level ◽  
Alcoholic Fatty Liver Disease

NAFLD is the most prevalent liver disorder worldwide, involving pathogenic mechanisms of liver sinusoidal endothelial cells (LSECs), hepatocytes and other liver cells.

scholarly journals The Role of the Transsulfuration Pathway in Non-Alcoholic Fatty Liver Disease

2021 ◽  
Vol 10 (5) ◽  
pp. 1081
Author(s):  
Mikkel Parsberg Werge ◽  
Adrian McCann ◽  
Elisabeth Douglas Galsgaard ◽  
Dorte Holst ◽  
Anne Bugge ◽  
...  
Keyword(s):  
Liver Disease ◽  
Animal Models ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Alcoholic Fatty Liver ◽  
Precise Control ◽  
Transsulfuration Pathway ◽  
Global Population ◽  
Alcoholic Fatty Liver Disease

The prevalence of non-alcoholic fatty liver disease (NAFLD) is increasing and approximately 25% of the global population may have NAFLD. NAFLD is associated with obesity and metabolic syndrome, but its pathophysiology is complex and only partly understood. The transsulfuration pathway (TSP) is a metabolic pathway regulating homocysteine and cysteine metabolism and is vital in controlling sulfur balance in the organism. Precise control of this pathway is critical for maintenance of optimal cellular function. The TSP is closely linked to other pathways such as the folate and methionine cycles, hydrogen sulfide (H2S) and glutathione (GSH) production. Impaired activity of the TSP will cause an increase in homocysteine and a decrease in cysteine levels. Homocysteine will also be increased due to impairment of the folate and methionine cycles. The key enzymes of the TSP, cystathionine β-synthase (CBS) and cystathionine γ-lyase (CSE), are highly expressed in the liver and deficient CBS and CSE expression causes hepatic steatosis, inflammation, and fibrosis in animal models. A causative link between the TSP and NAFLD has not been established. However, dysfunctions in the TSP and related pathways, in terms of enzyme expression and the plasma levels of the metabolites (e.g., homocysteine, cystathionine, and cysteine), have been reported in NAFLD and liver cirrhosis in both animal models and humans. Further investigation of the TSP in relation to NAFLD may reveal mechanisms involved in the development and progression of NAFLD.

scholarly journals The Role of Oxidative Stress in NAFLD–NASH–HCC Transition—Focus on NADPH Oxidases

Biomedicines ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 687
Author(s):  
Daniela Gabbia ◽  
Luana Cannella ◽  
Sara De De Martin
Keyword(s):  
Oxidative Stress ◽  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Current Knowledge ◽  
Mechanisms Of Action ◽  
Nadph Oxidases ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

A peculiar role for oxidative stress in non-alcoholic fatty liver disease (NAFLD) and its transition to the inflammatory complication non-alcoholic steatohepatitis (NASH), as well as in its threatening evolution to hepatocellular carcinoma (HCC), is supported by numerous experimental and clinical studies. NADPH oxidases (NOXs) are enzymes producing reactive oxygen species (ROS), whose abundance in liver cells is closely related to inflammation and immune responses. Here, we reviewed recent findings regarding this topic, focusing on the role of NOXs in the different stages of fatty liver disease and describing the current knowledge about their mechanisms of action. We conclude that, although there is a consensus that NOX-produced ROS are toxic in non-neoplastic conditions due to their role in the inflammatory vicious cycle sustaining the transition of NAFLD to NASH, their effect is controversial in the neoplastic transition towards HCC. In this regard, there are indications of a differential effect of NOX isoforms, since NOX1 and NOX2 play a detrimental role, whereas increased NOX4 expression appears to be correlated with better HCC prognosis in some studies. Further studies are needed to fully unravel the mechanisms of action of NOXs and their relationships with the signaling pathways modulating steatosis and liver cancer development.

scholarly journals Role of illness perception and self-efficacy in lifestyle modification among non-alcoholic fatty liver disease patients

2017 ◽  
Vol 23 (10) ◽  
pp. 1881 ◽  
Author(s):  
Shira Zelber-Sagi ◽  
Shiran Bord ◽  
Gali Dror-Lavi ◽  
Matthew Lee Smith ◽  
Samuel D Towne Jr ◽  
...  
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Self Efficacy ◽  
Fatty Liver Disease ◽  
Lifestyle Modification ◽  
Illness Perception ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

scholarly journals A Narrative Review on the Role of AMPK on De Novo Lipogenesis in Non-Alcoholic Fatty Liver Disease: Evidence from Human Studies

Cells ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1822
Author(s):  
Christian von Loeffelholz ◽  
Sina M. Coldewey ◽  
Andreas L. Birkenfeld
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Mammalian Cells ◽  
De Novo ◽  
Adenosine Monophosphate ◽  
De Novo Lipogenesis ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

5′AMP-activated protein kinase (AMPK) is known as metabolic sensor in mammalian cells that becomes activated by an increasing adenosine monophosphate (AMP)/adenosine triphosphate (ATP) ratio. The heterotrimeric AMPK protein comprises three subunits, each of which has multiple phosphorylation sites, playing an important role in the regulation of essential molecular pathways. By phosphorylation of downstream proteins and modulation of gene transcription AMPK functions as a master switch of energy homeostasis in tissues with high metabolic turnover, such as the liver, skeletal muscle, and adipose tissue. Regulation of AMPK under conditions of chronic caloric oversupply emerged as substantial research target to get deeper insight into the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Evidence supporting the role of AMPK in NAFLD is mainly derived from preclinical cell culture and animal studies. Dysbalanced de novo lipogenesis has been identified as one of the key processes in NAFLD pathogenesis. Thus, the scope of this review is to provide an integrative overview of evidence, in particular from clinical studies and human samples, on the role of AMPK in the regulation of primarily de novo lipogenesis in human NAFLD.

scholarly journals The expanding role of fish models in understanding non-alcoholic fatty liver disease

2013 ◽  
Vol 6 (4) ◽  
pp. 905-914 ◽  
Author(s):  
Y. Asaoka ◽  
S. Terai ◽  
I. Sakaida ◽  
H. Nishina
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

The role of Hepassocin in the development of non-alcoholic fatty liver disease

2013 ◽  
Vol 59 (5) ◽  
pp. 1065-1072 ◽  
Author(s):  
Hung-Tsung Wu ◽  
Feng-Hwa Lu ◽  
Horng-Yih Ou ◽  
Yu-Chu Su ◽  
Hao-Chang Hung ◽  
...  
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease
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