Also vitamin

See also Vitamin D5 Sitocalciferol. piTAMINS - VITAMIN D] pol 25) 7-Dehydrostigmasterol [481-19-6]... 

See also Vitamin D2 Ergosterol. [VITAMINS - VITAMIN D] (Vol 25) Ergoloid mesylate [8067-24-1]... 

The dry crystals are stable for months in the dark, but aqueous solns decompose on exposure to VIS or UV light or alkaline CN", but stable in the dark at pH 6-7. The vitamin is inactivated by strong acids or alkalies. [Barker et al. J Biol Chem 235 480 1960 see also Vitamin B/2 (Zagalak and Friedrich Eds) W de Gruyter, Berlin 1979.]... 

In bone, three proteins have been described which are vitamin K-dependent, osteocalcin (bone Gla protein), matrix Gla protein (MGP), and protein S. Osteocalcin is synthetized by osteoclasts, regulated by the active form of vitamin D, calcitriol. Its capacity to bind calcium needs a vitamin K-dependent y-carboxylation of three glutamic acid residues. The calcium binding capacity of osteocalcin indicates a possible role in bone mineralization, but its exact function is still unclear. However, it is widely used as a serum marker for bone mineralization. Protein S, mainly a coagulant, is also vitamin-K dependent and synthesized in the liver. Children with... 

Retention time, in chromatography, 6 374-375, 409-410 ( )-Reticuline, 2 90 Retina, 7 307-308 Retinal, 25 787. See also Vitamin A carotenes and, 25 790 Retinitis pigmentosa, 17 659 Retinoic acid, 25 787-789, 790. See also Vitamin A... 

See also Vitamin Bi Thiamine deficiency, 26 291 Thiamine hydrochloride, 25 795 Thiamine hydrochloride... 

A review of the vitamin composition of grapes and musts has been reported in recent texts (2, 3). Also, vitamins in grapes were reported by Amerine (21) in an extensive review of organic components of wines. 

TRACE AND RESIDUE ANALYSIS] (Vol 24) Biotm. (See also Vitamins, biotm.)... 

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