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pro vyhledávání: '"Leland L. Smith"'
Autor:
Leland L. Smith
Publikováno v:
Free Radical Biology and Medicine. 37:318-324
The recent account of the oxidation of tissue cholesterol by ozone created in human arterial plaques by the oxidation of water by electronically excited (singlet) dioxygen depends on the identification of the oxysterols formed and on the presumption
Autor:
Leland L. Smith
Most components of the biosphere are continuously ex posed to oxygen from the atmosphere. Accordingly, the inex orable deterioration of all organic compounds by the slow attack of oxygen must occur. Despite this eventuality, a definitive treatmen
Autor:
Leland L. Smith
Publikováno v:
Journal of Liquid Chromatography. 16:1731-1747
High performance liquid chromatography of oxysterols of current biochemical and biomedical interest is reviewed.
Autor:
Leland L. Smith, Edward L. Ezell
Publikováno v:
Journal of Natural Products. 54:1645-1650
Autor:
Edward L. Ezell, Leland L. Smith
Publikováno v:
Magnetic Resonance in Chemistry. 28:414-418
Fluorine NMR spectra of 23 9α-fluorocorticosteroid analogs established that the 9α-fluorine is subject to deshielding effects by remote structural features (A-ring olefinic unsaturation, A-ring 1α- and 2β-hydroxy and acetoxy features and D-ring 1
Autor:
Leland L. Smith, Jon I. Teng
Publikováno v:
Steroids. 61(11)
Cholesterol is oxidized by commercially available Pseudomonas fluorescens cholesterol oxidase to 6 beta-hydroperoxycholest-4-en-3-one as the initial product, with none of the expected produce, cholest-4-en-3-one, formed. The transformation indicates
Publikováno v:
Steroids. 61(7)
The structures of cholesterol 3 beta-acyl ester ozonides formed by reaction with ozone in participating alcoholic solvents are established by proton and carbon-13 spectra as a 3 beta-acyloxy-7 alpha-alkoxy-(5R,7R)-5 alpha-B-homo-6-oxacholestane-5-hyd
Autor:
Leland L. Smith
Publikováno v:
Lipids. 31(5)
Material dealing with the chemistry, biochemistry, and biological activities of oxysterols is reviewed for the period 1987-1995. Particular attention is paid to the presence of oxysterols in tissues and foods and to their physiological relevance.
Autor:
Jon I. Teng, Leland L. Smith
Publikováno v:
Journal of chromatography. A. 691(1-2)
Following oxidation by cholesterol oxidase human erythrocyte oxysterols were analyzed as the corresponding hydroxy-delta 4-3-ketones by HPLC with effluent monitoring at 235 nm. Variable amounts of epimeric cholest-5-ene-3 beta,7-diols, 3 beta-hydroxy
Autor:
Leland L. Smith, Ghulam Ansari
Publisher Summary The autoxidation of cholesterol (cholest-5-en-3β-ol) by molecular oxygen ( 3 O 2 ) leads to the formation of a large number of oxysterols of diverse chemistry, biological activities, and biomedical implications. Product analysis by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aec1a02824ba867e92aefc7ffa371c5
https://doi.org/10.1016/s0076-6879(94)33038-7
https://doi.org/10.1016/s0076-6879(94)33038-7