squalene/atrophy

Amino acid sequence information was obtained for the NH2 terminus, and for endogenous peptides generated by trypsin digestion, of a purified, truncated form of rat hepatic squalene synthase (RSS, EC 2.5.1.21) (Shechter, I., Klinger, E., Rucker, M. L., Engstrom, R. G., Spirito, J. A., Islam, M. A.,

The total triterpene saponins of Psammosilene tunicoides have significant pharmacologic activity. Psammosilene tunicoides squalene synthase (PSS) is a gateway enzyme to regulate the biosynthesis of total triterpene saponins extracted from the root of Psammosilene tunicoides which is an endangered

Triterpenoid saponins are a diverse group of bioactive compounds, which are used for possessing of many biomedical and pharmaceutical products. Generally, squalene synthase (SQS) is defined as an emerging and essential branch point enzyme far from the major pathway of isoprenoids biosynthetic and a

Squalene is a terpenoid found in human skin surface lipids (SSLs) and foods that possesses beneficial properties. However, since oxidation of squalene causes various complications, it is necessary to identify the mechanisms by which squalene is oxidized. In this study, we aimed to determine the

Squalene synthetase (farnesyl-diphosphate:farnesyl-diphosphate farnesyltransferase, EC 2.5.1.21) catalyzes the first committed step for sterol biosynthesis and is thought to play an important role in the regulation of isoprenoid biosynthesis in eukaryotes. Using degenerate oligonucleotides based on

Squalene synthase (SQS) inhibitors, mostly known as antihyperlipidemic agents for controlling blood cholesterol levels, have been increasingly used to study alterations of the cholesterol content in cell membranes. As such, SQS inhibitors have been demonstrated to control cellular activities related

The green microalga Botryococcus braunii produces large amounts of liquid hydrocarbons and is classified into three races, depending on the type of the hydrocarbon produced. The B race produces two types of triterpenoid hydrocarbons, squalene and botryococcene, both of which are putative

Squalene synthase (SQS) catalyzes the condensation of two molecules of farnesyl diphosphate to give presqualene diphosphate and the subsequent rearrangement to form squalene. The gene encoding squalene synthase was cloned from Poria cocos by degenerate PCR and inverse PCR. The open reading frame of

Since deodorization distillate, a by-product of rice bran oil production, contains squalene (ca. 8%) and phytosterols (ca. 4%) as unsaponifiable components, the concentration of those materials for their use in the cosmetics and food industries is desirable. In the present work, a novel

Three monovarietal extra virgin olive oils (EVOOs) were subjected to accelerated storage conditions (60 degrees C, dark) representative of the autoxidation process during shelf life. Oxidation markers, i.e., the peroxide value, conjugated dienes, the oil stability index, and minor components, were

The oil palm (Elaeis guineensis) is native to many West African countries, where local populations have used its oil for culinary and other purposes. Large-scale plantations, established principally in tropical regions (Asia, Africa and Latin America), are mostly aimed at the production of oil,

Owing to its traditional applications, the current study focuses on Ajuga parviflora (A. parviflora) leaves extract for phytochemical and pharmacological analysis. The principle constituents were identified through gas chromatography (GC), and gas chromatography/mass spectroscopy (GC/MS), these

A hypothesis that squalene cyclase genes are widely distributed throughout ferns was proposed. We successfully isolated a squalene cyclase pseudogene from a fern from which no triterpene hydrocarbons were detected Ferns are the most primitive vascular plants, with their locations ranging from

Recent studies have demonstrated that inhibition of mevalonate synthesis in cultured cells leads to altered cell morphology due to inhibition of protein prenylation. To investigate the effects in vivo of mevalonate deprivation in nondividing, terminally differentiated neural cells, we have analyzed

Exposure of weanling rats to a diet containing elemental tellurium results in a peripheral neuropathy characterized by segmental demyelination and minimal axonal degeneration. One of the earliest ultrastructural abnormalities in tellurium neuropathy is an increased number of cytoplasmic lipid