نتایج جستجو برای: sterol content determination

تعداد نتایج: 661608  

Journal: :American journal of physiology. Heart and circulatory physiology 2010
Christine Y Ivashchenko Benjamin T Bradley Zhaohui Ao James Leiper Patrick Vallance Douglas G Johns

Asymmetric dimethylarginine (ADMA) has been implicated in the progression of cardiovascular disease as an endogenous inhibitor of nitric oxide synthase. The regulation of dimethylarginine dimethylaminohydrolase (DDAH), the enzyme responsible for metabolizing ADMA, is poorly understood. The transcription factor sterol response element binding protein (SREBP) is activated by statins via a reducti...

Journal: :Biophysical journal 2012
Berenice Venegas Weiwei Zhu Nicole B Haloupek Janet Lee Elizabeth Zellhart István P Sugár Mohammad F Kiani Parkson Lee-Gau Chong

Liposomal drugs are a useful alternative to conventional drugs and hold great promise for targeted delivery in the treatment of many diseases. Most of the liposomal drugs on the market or under clinical trials include cholesterol as a membrane stabilizing agent. Here, we used liposomal CA4P, an antivascular drug, to demonstrate that cholesterol content can actually modulate the release and cyto...

Journal: :Czech Journal of Food Sciences 2011

Journal: :molecular biology research communications 2012
mehdi ghasemi yemen atakishiyeva asadollah asadi

pythium irregulare oomycetes adapts with environmental changes including crude oil concentration by changing the composition of lipids in the cytoplasmic membrane and providing the required characteristics for adaptation in improper and stressful environmental situations. it was found that cultivation of pythium irregulare lx oomycetes in the nutrient media with different concentrations of crud...

Journal: :Development 2010
Maria Carvalho Dominik Schwudke Julio L Sampaio Wilhelm Palm Isabelle Riezman Gautam Dey Gagan D Gupta Satyajit Mayor Howard Riezman Andrej Shevchenko Teymuras V Kurzchalia Suzanne Eaton

The high sterol concentration in eukaryotic cell membranes is thought to influence membrane properties such as permeability, fluidity and microdomain formation. Drosophila cannot synthesize sterols, but do require them for development. Does this simply reflect a requirement for sterols in steroid hormone biosynthesis, or is bulk membrane sterol also essential in Drosophila? If the latter is tru...

Journal: :The Journal of the Society of Chemical Industry, Japan 1957

Journal: :Biochimica et biophysica acta 2004
Stephen L Sturley Marc C Patterson William Balch Laura Liscum

The molecular isolation of NPC1 and NPC2, the genes defective in patients with Niemann-Pick disease type C (NP-C), has heralded in an exponential increase in our understanding of this syndrome and thus of human intracellular sterol transport. Despite this, neither the mechanisms of action nor the substrates for these putative transporters have been defined. In this overview, we describe our per...

Journal: :British heart journal 1964
L G WHITBY R G GOLD E G KITCHIN H A FLEMING

Desmosterol (24-dehydrocholesterol) is the immediate precursor of cholesterol in the biosynthesis of the latter compound. The structures of these two sterols are very similar, and desmosterol interferes with many of the colorimetric methods used for estimating plasma cholesterol levels. Normally, desmosterol is not present in plasma in significant amounts, but in patients treated with triparano...

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