Anhydrovitamin A2 and Rehydrovitamin A2. II

Anhydrovitamin A, and Rehydrovitamin A,. II

In a previous publication (l), we reported that when 1 mg of a pure concentrate of anhydrovitamin A2 (4’-ethoxy anhydrovitamin Ai, E:%m at 370 rnp = 2248 in light petroleum ether), and 0.5 mg of a-tocopherol are fed daily to vitamin A-deficient rats, growth is resumed, xerophthalmic lesions are cured, and a new compound named rehydrovitamin A* showing absorption maxima at 330,348, and 365 rnp c...

A2-Planar Algebras II: Planar Modules

Generalizing Jones’s notion of a planar algebra, we have previously introduced an A2-planar algebra capturing the structure contained in the double complex pertaining to the subfactor for a finite SU(3) ADE graph with a flat cell system. We now introduce the notion of modules over an A2-planar algebra, and describe certain irreducible Hilbert A2-TL-modules. We construct an A2-graph planar algeb...

Group II phospholipase A2 and pulmonary histiocytosis X.

Thromboxane A2, and ADP

In monkeys with early and advanced atherosclerosis, we examined responses to the three major vasoactive agonists that are released when platelets aggregate. Measurements were obtained in normal cynomolgus monkeys and in monkeys fed an atherogenic diet for 4+1, 9±1, and 19±1 months (mean± SEM). Morphometry of femoral and iliac arteries indicated that 4 months of atherogenic diet produced only sl...

Bimodal regulatory effect of melittin and phospholipase A2-activating protein on human type II secretory phospholipase A2.

Melittin and phospholipase A2-activating protein (PLAP) are known as efficient activators of secretory phospholipase A2(sPLA2) types I, II, and III when phospholipid liposomes are used as substrate. The present study demonstrates that both peptides can either inhibit or activate sPLA2 depending on the peptide/phospholipid ratio when erythrocyte membranes serve as a biologically relevant substra...