نتایج جستجو برای: ampk

تعداد نتایج: 8651  

2014
Nirma D Perera Rebecca K Sheean John W Scott Bruce E Kemp Malcolm K Horne Bradley J Turner

Bioenergetic abnormalities and metabolic dysfunction occur in amyotrophic lateral sclerosis (ALS) patients and genetic mouse models. However, whether metabolic dysfunction occurs early in ALS pathophysiology linked to different ALS genes remains unclear. Here, we investigated AMP-activated protein kinase (AMPK) activation, which is a key enzyme induced by energy depletion and metabolic stress, ...

Durdi Qujeq, Farideh Feizi, Hadi Parsian, Mohsen Tatar, Sohrab Halalkhor,

Background: The purpose of this study is to evaluate effects of Teucrium polium (TP) leaf extracts on adenosine monophosphate activated protein kinase (AMPK) level in isolated pancreases. Materials and Methods: In this experimental study, two groups of rats were used as a control group, and diabetic group. In the end of experimental period the animals were sacrificed then pancreas were removed...

Journal: :Critical reviews in biochemistry and molecular biology 2010
Benoit Viollet Sandrine Horman Jocelyne Leclerc Louise Lantier Marc Foretz Marc Billaud Shailendra Giri Fabrizio Andreelli

All living organisms depend on dynamic mechanisms that repeatedly reassess the status of amassed energy, in order to adapt energy supply to demand. The AMP-activated protein kinase (AMPK) alphabetagamma heterotrimer has emerged as an important integrator of signals managing energy balance. Control of AMPK activity involves allosteric AMP and ATP regulation, auto-inhibitory features and phosphor...

2015
OMAR S. EL-MASRY KALTOOM AL-SAKKAf BARRY L. BROWN PAULINE R.M. DOBSON

AMP-activated protein kinase (AMPK), a sensor of cellular energy, is widely reported as a potential therapeutic target in treatment of breast and other cancers. The activated enzyme has been shown to be a promising anti-proliferative agent in breast cancer cell lines. However, little data exist on crosstalk between AMPK and the cellular survival axis of PI3K/Akt/mTOR pathway and the impact of m...

2014
Hsin-Chieh Tang Calvin Yu-Chian Chen

Adenosine monophosphate-activated protein kinase (AMPK) acts as a master mediator of metabolic homeostasis. It is considered as a significant millstone to treat metabolic syndromes including obesity, diabetes, and fatty liver. It can sense cellular energy or nutrient status by switching on the catabolic pathways. Investigation of AMPK has new findings recently. AMPK can inhibit cell growth by t...

2013
Hayley M. O'Neill

AMPK is an evolutionary conserved sensor of cellular energy status that is activated during exercise. Pharmacological activation of AMPK promotes glucose uptake, fatty acid oxidation, mitochondrial biogenesis, and insulin sensitivity; processes that are reduced in obesity and contribute to the development of insulin resistance. AMPK deficient mouse models have been used to provide direct geneti...

2015
Enyu Rao Yuwen Zhang Ganqian Zhu Jiaqing Hao Xuan-Mai T. Persson Nejat K. Egilmez Jill Suttles Bing Li

A number of studies have linked AMPK, a major metabolic sensor coordinating of multiple cellular functions, to tumor development and progression. However, the exact role of AMPK in tumor development is still controversial. Here we report that activation of AMPK promotes survival and anti-tumor function of T cells, in particular CD8+ T cells, resulting in superior tumor suppression in vivo. Whil...

Journal: :International journal of molecular medicine 2012
Ju-Young Kim Kyung-Jin Jo Byung-Joon Kim Haing-Woon Baik Seong-Kyu Lee

Estrogen (17β-estradiol) has been implicated in maintaining insulin sensitivity. It is thought to act predominantly through genomic pathways and regulate the expression of various genes via binding to estrogen receptors (ERs)-α and -β. 17β-estradiol has been reported to simultaneously stimulate protein kinase B (Akt) and adenosine monophosphate-activated protein kinase (AMPK) in ex vivo skeleta...

Journal: :American journal of physiology. Heart and circulatory physiology 2013
John T Fassett Xinli Hu Xin Xu Zhongbing Lu Ping Zhang Yingjie Chen Robert J Bache

Cell hypertrophy requires increased protein synthesis and expansion of the cytoskeletal networks that support cell enlargement. AMPK limits anabolic processes, such as protein synthesis, when energy supply is insufficient, but its role in cytoskeletal remodeling is not known. Here, we examined the influence of AMPK in cytoskeletal remodeling during cardiomyocyte hypertrophy, a clinically releva...

2012
Andrea Hirsch Dagmar Hahn Petra Kempná Gaby Hofer Primus E. Mullis Jean-Marc Nuoffer Christa E. Flück

Regulation of human androgen biosynthesis is poorly understood. However, detailed knowledge is needed to eventually solve disorders with androgen dysbalance. We showed that starvation growth conditions shift steroidogenesis of human adrenal NCI-H295R cells towards androgen production attributable to decreased HSD3B2 expression and activity and increased CYP17A1 phosphorylation and 17,20-lyase a...

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