نتایج جستجو برای: lipotoxicity

تعداد نتایج: 1097  

2014
Cristina Contreras Ismael González-García Noelia Martínez-Sánchez Patricia Seoane-Collazo Jordi Jacas Donald A. Morgan Dolors Serra Rosalía Gallego Francisco Gonzalez Núria Casals Rubén Nogueiras Kamal Rahmouni Carlos Diéguez Miguel López

Hypothalamic endoplasmic reticulum (ER) stress is a key mechanism leading to obesity. Here, we demonstrate that ceramides induce lipotoxicity and hypothalamic ER stress, leading to sympathetic inhibition, reduced brown adipose tissue (BAT) thermogenesis, and weight gain. Genetic overexpression of the chaperone GRP78/BiP (glucose-regulated protein 78 kDa/binding immunoglobulin protein) in the ve...

2015
Chiara Saponaro Melania Gaggini Fabrizia Carli Amalia Gastaldelli

Excessive accumulation of lipids can lead to lipotoxicity, cell dysfunction and alteration in metabolic pathways, both in adipose tissue and peripheral organs, like liver, heart, pancreas and muscle. This is now a recognized risk factor for the development of metabolic disorders, such as obesity, diabetes, fatty liver disease (NAFLD), cardiovascular diseases (CVD) and hepatocellular carcinoma (...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Joon No Lee Hyeonwoo Kim Hongbing Yao Yan Chen Kayson Weng Jin Ye

Fatty acids (FAs) are essential for cell survival, yet their overaccumulation causes lipotoxicity. To prevent lipotoxicity, cells store excess FAs as triglycerides (TGs). In cultured cells TG synthesis is activated by excess unsaturated but not saturated FAs. Here, we identify Ubxd8 as a sensor for unsaturated FAs and regulator of TG synthesis. In cultured cells depleted of FAs, Ubxd8 inhibits ...

Journal: :JCI insight 2017
Thomas Greuter Harmeet Malhi Gregory J Gores Vijay H Shah

Alcoholic steatohepatitis (ASH) and nonalcoholic steatohepatitis (NASH) are among the most frequent causes of chronic liver disease in the United States. Although the two entities are triggered by different etiologies - chronic alcohol consumption (ASH) and obesity-associated lipotoxicity (NASH) - they share overlapping histological and clinical features owing to common pathogenic mechanisms. T...

2014
Huiping Zhou Runping Liu

The endoplasmic reticulum (ER) is an important player in regulating protein synthesis and lipid metabolism. Perturbation of ER homeostasis, referred as "ER stress," has been linked to numerous pathological conditions, such as inflammation, cardiovascular diseases, and metabolic disorders. The liver plays a central role in regulating nutrient and lipid metabolism. Accumulating evidence implicate...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2003
Laura L Listenberger Xianlin Han Sarah E Lewis Sylvaine Cases Robert V Farese Daniel S Ory Jean E Schaffer

Excess lipid accumulation in non-adipose tissues is associated with insulin resistance, pancreatic beta-cell apoptosis and heart failure. Here, we demonstrate in cultured cells that the relative toxicity of two common dietary long chain fatty acids is related to channeling of these lipids to distinct cellular metabolic fates. Oleic acid supplementation leads to triglyceride accumulation and is ...

Journal: :International Journal of Molecular Sciences 2018

Journal: :Clinical and Experimental Hepatology 2021

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