نتایج جستجو برای: ucp3
تعداد نتایج: 538 فیلتر نتایج به سال:
Uncoupling Protein 2 (UCP2) dan Uncoupling Protein 3 (UCP3) is a mitochondrial transmembrane carriers which uncouple the transport of protons across the inner mitochondrial membrane from electron transport and the synthesis of ATP from ADP. The UCPs play a role in energy homeostasis and have considered to be candidate gene for controlling obesity and insulin resistance. The aim of our study is ...
We show that mitochondrial respiration is temporarily impaired after a period of intensified exercise training in elite athletes. In parallel, proteins involved the antioxidative response including SOD2, UCP3, and ANT2 were upregulated, whereas biogenesis was slightly activated. Despite respiratory impairments, physical performance improved few days intense period.
Muscle dysfunction is a common feature of severe sepsis and multiorgan failure. Recent evidence implicates bioenergetic dysfunction and oxidative damage as important underlying pathophysiological mechanisms. Increased abundance of uncoupling protein-3 (UCP3) in sepsis suggests increased mitochondrial proton leak, which may reduce mitochondrial coupling efficiency but limit reactive oxygen speci...
These studies investigate the role of uncoupling protein 3 (UCP3) in cardiac energy metabolism, cardiac O(2) consumption (MVO(2)), cardiac efficiency (CE), and mitochondrial uncoupling in high fat (HF)-fed or leptin-deficient mice. UCP3KO and wild-type (WT) mice were fed normal chow or HF diets for 10 weeks. Substrate utilization rates, MVO(2), CE, and mitochondrial uncoupling were measured in ...
Weight loss in response to caloric restriction is variable. Because skeletal muscle mitochondrial proton leak may account for a large proportion of resting metabolic rate, we compared proton leak in diet-resistant and diet-responsive overweight women and compared the expression and gene characteristics of uncoupling protein (UCP)2 and UCP3. Of 1,129 overweight women who completed the University...
A role for uncoupling protein (UCP) 3 in fatty acid metabolism is reviewed within the context of our proposal, first put forward in 1998, that this homologue of UCP1 may be involved in the regulation of lipids as fuel substrate rather than in the mediation of thermogenesis. Since then, the demonstrations of muscle-type differences in UCP3 gene regulation in response to dietary manipulations (st...
Peroxisome proliferator-activated receptor alpha (PPAR alpha) is a transcriptional regulator of the expression of mitochondrial thioesterase I (MTE-I) and uncoupling protein 3 (UCP3), which are induced in the heart at the mRNA level in response to diabetes. Little is known about the regulation of protein expression of MTE-I and UCP3 or about MTE-I activity; thus, we investigated the effects of ...
These experiments examined the potential roles of somatropin (pST) and IGF-I in the regulation of uncoupling protein (UCP)2 and UCP3 and their regulatory proteins peroxisome proliferator activated receptor (PPAR) alpha, gamma and delta using in vivo pST treatment of swine and in vitro supplementation of pST or IGF-I to adipose slices. Six, 90kg barrows were treated with recombinant pST (10mg) f...
Phosphocreatine (PCr) resynthesis rate following intense anoxic contraction can be used as a sensitive index of in vivo mitochondrial function. We examined the effect of a diet-induced increase in uncoupling protein 3 (UCP3) expression on postexercise PCr resynthesis in skeletal muscle. Nine healthy male volunteers undertook 20 one-legged maximal voluntary contractions with limb blood flow occl...
To examine whether benidipine hydrochloride, one of the calcium channel blockers, up-regulate uncoupling protein 3 (UCP3) expression in two skeletal muscles (gastrocnemius and soleus) in rats. Wistar rats were treated orally with benidipine hydrochloride at 4 mg/kg for 7 days. Blood pressure was measured after 4 days. At the end of experiments, the rats were weighed, and brown adipose tissue (B...
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