The Vitamin C Activity of Hexuronic Acid from Suprarenal Glands.
نویسندگان
چکیده
vertebrates, are: (1) The abundant occurrence in nature of a form of demonstrated hybrid origin, having nearly all of the characteristies of a natural species; (2) the occurrence of a form as females only, over a wide portion of its range; (3) the consistent and abundant production of wholly female and purely matroclinous young; (4) apparent parthenogenesis in nature. CARL L. HUBBS LAURA C. HUBBS MUSEUM OF ZOOLOGY, UNIVERSITY OF MICHIGAN
منابع مشابه
Ccxlvi. Vitamin C and the Suprarenal Cortex. I. Antiscorbutic Activity of Ox Suprarenal. by Leslie Julius Harris and Surendra Nath Ray
THE chemical study of vitamin C has been notably advanced by the discovery that hexuronic acid possesses antiscorbutic properties. It will be recalled that when he first isolated hexuronic acid, Szent-Gydrgyi [1928] concluded that it was identical with the reducing substance which is found in active vitamin C concentrates. However, observations by Zilva seemed to show that the reducing substanc...
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The previous work reported from this laboratory on the chemical nature of vitamin C has been continued, particularly in the study of the solubility of the active material in organic solvents, leading towards its isolation by crystallization. This paper deals with (a) the precipitation of the active material as the lead salt, and (b) the isolation of a crystalline compound which is active in pre...
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Background and purpose: Since histologists studied suprarenal glands more with immuno histochemical methods, and less about its surface cell glycoconjugate chains. Therefore this study was conducted to examine sugar or terminal glycoconjugate sugar chains of surface developing medullary chromatinic cells in mouse embryonic suprarenal glands. Materials and methods: Mice embryos at days 13th...
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BACKGROUND When vitamin C intake is from foods, fasting plasma concentrations do not exceed 80 micromol/L. We postulated that such tight control permits a paracrine function of vitamin C. OBJECTIVE The purpose of this study was to determine whether paracrine secretion of vitamin C from the adrenal glands occurs. DESIGN During diagnostic evaluation of 26 patients with hyperaldosteronism, we ...
متن کاملOn the Function of Hexuronic Acid in the Respiration of the Cabbage Leaf
It has been shown (3) in a previous paper (1928) that plants which contain a peroxidase syst,em and the suprarenal cortex of animals contain a relatively high concentration of a substance called hexuronic acid. This substance is characterized by its high reducing power and its reversible oxidizability. It has been suggested that hexuronic acid is involved as a catalyst in the resphation of the ...
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عنوان ژورنال:
- Science
دوره 76 1983 شماره
صفحات -
تاریخ انتشار 2005