Results 31 to 40 of about 736 (160)
The late steps of cholesterol biosynthesis are oxygen demanding, requiring eleven oxygen molecules per synthesized cholesterol molecule. A key enzymatic reaction, which occurs at the top of the Bloch and Kandutsch-Russell pathways, is the demethylation ...
Jun Zhu +2 more
doaj +1 more source
The Forkhead transcription factors FoxO1, FoxO3a, and FoxO4 play a prominent role in regulating cell survival and cell cycle. Whereas FOXO1 was shown to mediate insulin sensitivity and adipocyte differentiation, the role of the transcription factor FoxO4
Jun Zhu +5 more
doaj +1 more source
Isolation and identification of new constituents in milk fat
After removal of cholesterol on a digitonin column, the unsaponifiable matter of milk fat was examined for alcoholic substituents. Derivatization with pyruvic acid chloride 2,6-dinitrophenylhydrazone and fractionation of the derivatives gave four main ...
C.R. Brewington +2 more
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Aspergillus oryzaeproduces compounds inhibiting cholesterol biosynthesis downstream of dihydrolanosterol [PDF]
The formation of cholesterol synthesis inhibiting molecules by five different strains of the koji mold Aspergillus oryzae was studied. After growing these strains on a complex liquid medium we found in crude organic phase extracts and specific fractions there from compounds inhibiting cholesterol synthesis in human hepatic T9A4 cells in vitro at enzyme
Hassan, Hajjaj +5 more
openaire +2 more sources
Molecular diversity of sterol 14α-demethylase substrates in plants, fungi and humans [PDF]
Metabolism of lanosterol (LAN), 24-methylene-24,25-dihydrolanosterol (24-methyleneDHL), dihydrolanosterol (DHL) and obtusifoliol (OBT) by purified human, plant (Sorghum bicolor) and fungal (Candida albicans) sterol 14α-demethylase (CYP51; P45014DM ...
Lamb, David C +5 more
core +1 more source
Lanosterol 14 alpha-demethylase (P45014DM) is the cytochrome P450 enzyme complex responsible for an early step in cholesterol biosynthesis, namely the 14 alpha-demethylation of lanosterol.
SF Tuck, H Patel, E Safi, CH Robinson
doaj +1 more source
Sterol content of the Myxomycetes Physarum polycephalum and P. flavicomum
The sterol content of two Myxomycetes, Physarum polycephalum and P. flavicomum has been examined. The sterols of the two species are apparently identical, the two major sterols in each being poriferasterol and 22-dihydroporiferasterol.
E Bullock, C J Dawson
doaj +1 more source
Incubation of Chinese hamster ovary cells (CHO-K1) with 14 alpha-ethyl-5 alpha-cholest-7-ene-3 beta,15 alpha-diol (0.1 microM) in lipid-deficient medium led to a major change in cellular sterol composition, which was characterized by a very marked ...
A Izumi +6 more
doaj +1 more source
Dependence between sterols synthesis and the method of beer yeast oxygenation [PDF]
Oxygen is necessary for yeast to synthesize membrane components (unsaturated fatty acids and sterols), but its high content in the medium during fermentation increases the concentration of cell oxidative metabolism products.
Permyakova L.
doaj +1 more source
With [3H-24,25]-dihydrolanosterol as substrate, large-scale metabolic formation of intermediates of lanosterol demethylation was carried out to identify all compounds in the metabolic process.
A Shafiee +3 more
doaj +1 more source

