2-Hydroxy-3,5-diisopropylbenzoic acid

Alpha Hydroxy Acid (AHA) / Beta Hydroxy Acid (BHA)

AHAs act on both the epidermal and the dermal levels. When applied to the skin, AHAs stimulate the exfoliation of epidermal cells in the stratum corneum (s.c.) by interfering with the ionic bonding between these cells. This results in the sloughing off dull, rough skin and promotes cellular renewal. Initially used for treatment of hyperkeratosis and other skin conditions affecting s.c. turnover...

Purification and identification of 10-hydroxy-2-decenoic acid from pure royal jelly

The chemical nature of the royal jelly (RJ) has received considerable attention over the past 20 years. Genc and Aslan reported the determination of Trans-10-hydroxy-2-decenoic acid (10-HDA) content in pure Royal Jelly and royal jelly products by column liquid chromatography. Antinelli et al. confirmed this method and evaluated 10-Hydroxy-2-decenoic acid presence as a freshness parameter for Ro...

Stereospecificity of fatty acid 2-hydroxylase and differential functions of 2-hydroxy fatty acid enantiomers.

FA 2-hydroxylase (FA2H) is an NAD(P)H-dependent enzyme that initiates FA α oxidation and is also responsible for the biosynthesis of 2-hydroxy FA (2-OH FA)-containing sphingolipids in mammalian cells. The 2-OH FA is chiral due to the asymmetric carbon bearing the hydroxyl group. Our current study performed stereochemistry investigation and showed that FA2H is stereospecific for the production o...

Properties of the branched-chain 2-hydroxy acid/2-oxo acid shuttle in mouse spermatozoa.

Operation of the branched-chain 2-hydroxy acid/2-oxo acid shuttle for the transfer of reducing equivalents in mitochondria of mouse spermatozoa was studied in vitro in reconstituted systems. Results show that the branched-chain 2-oxo acids within the mitochondria are offered several metabolic pathways. (a) Decarboxylation: mouse sperm mitochondria possess high branched-chain 2-oxo acid decarbox...

H.P.C. (3-hydroxy-2-phenylcinchoninic acid) in rheumatoid arthritis.