نتایج جستجو برای: peroxisome
تعداد نتایج: 15079 فیلتر نتایج به سال:
The peroxisome is a single-membrane-bound organelle found in eukaryotes. The functional importance of peroxisomes in humans is highlighted by peroxisome-deficient PBDs (peroxisome biogenesis disorders), such as Zellweger syndrome. Two AAA (ATPase associated with various cellular activities) peroxins, Pex1p and Pex6p, are encoded by PEX1 and PEX6, the causal genes for CG (complementation group) ...
Cholesterol is dynamically transported among organelles, which is essential for multiple cellular functions. However, the mechanism underlying intracellular cholesterol transport has remained largely unknown. We established an amphotericin B-based assay enabling a genome-wide shRNA screen for delayed LDL-cholesterol transport and identified 341 hits with particular enrichment of peroxisome gene...
The phthalate ester di(2-ethylhexyl) phthalate is both a peroxisome proliferator and a hepatic carcinogen. Peroxisome proliferators as a class are hepatocarcinogenic in rodent species. However, none of the peroxisome proliferators tested to date including the phthalate esters and related alcohol and acid analogs have demonstrated mutagenic or DNA-damaging activity in the in vitro Salmonella typ...
Peroxisome proliferators such as the fibrates act via the peroxisome proliferator activated receptor (PPAR)-alpha as hypolipidemic agents. Many peroxisome proliferators are also nongenotoxic hepatic carcinogens and hepatotoxicants in rodents. We performed transcription profiling using cDNA microarrays on livers of rats treated for 5 days with 3 doses of the peroxisome proliferator clofibrate. A...
Di(2-ethylhexyl)phthalate (DEHP), a peroxisome proliferator, has been listed by the International Agency for Research on Cancer (IARC) and by the National Toxicology Program as a possible or reasonably anticipated human carcinogen because it induces dose-related increases in liver tumors in both sexes of rats and mice. Recently, the suggestion has been advanced that DEHP should be considered un...
Peroxisomes are ubiquitous cellular organelles that perform vital functions including fatty acid beta-oxidation, plasmalogen synthesis, and detoxification of harmful oxidative species. In rodents numerous compounds that increase peroxisome biogenesis also alleviate metabolic syndrome (MetS)/type 2 diabetes (T2D) symptoms. However, compounds that increase peroxisome biogenesis in rodents largely...
Several groups have reported the cloning and sequencing of genes involved in the biogenesis of yeast peroxisomes. Yeast strains bearing mutations in these genes are unable to grow on carbon sources whose metabolism requires peroxisomes, and these strains lack morphologically normal peroxisomes. We report the cloning of Pichia pastoris PAS1, the homologue (based on a high level of protein sequen...
Peroxisome proliferator activated receptor(alpha) (PPARalpha) mediates the liver's responses to peroxisome proliferator compounds. These responses include induction of specific hepatic enzymes, peroxisome proliferation and hepatocyte proliferation. PPARalpha null mice, which lack receptor in all cells of the body, do not respond to peroxisome proliferators, indicating that hepatocellular prolif...
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