Now showing items 101-110 of 143
Thyroid control over biomembranes : Rat liver mitochondrial inner membranes
(Elsevier, 1977-06)
The effects of hypothyroidism and one injection of -thyroxine on oxidative phosphorylation and the composition of proteins and phospholipids were examined in vesicles prepared from rat liver mitochondria by digitonin ...
Evidence forH202 mediating the irreversible action of acetylenic inhibitors of prostaglandin biosynthesis
(Elsevier, 1978-09)
Oxidizing intermediates formed during prostaglandin biosynthesis can be detected by ferrocytochrome c and epinephrine. Different intermediates were responsible for the oxidative colorimetric changes with epinephrine and ...
Gas chromatography-mass spectrometric characteristics and assay of tele-methylhistamine
(Elsevier, 1979-07-01)
To date, tele-methylhistamine, the product of enzymatic histamine methylation, has not been measured by a suitable method. Tele- and pros-methylhistamine both react quantitatively with trifluoroacetic and heptafluorobutyric ...
A method for the separation of glycine-conjugated bile acids as a group from taurine-conjugated bile acids
(Elsevier, 1977-02)
A thin-layer chromatographic method for bile acids has been described which separates glycine conjugates, taurine conjugates, and free bile acids into three separate bands. The solvent system used for this purpose is ...
Androgen receptor protein binding properties and tissue distribution of 2-selena-a-nor-5[alpha]-androstan-17[beta]-ol in the rat
(Elsevier, 1977-07)
2-selena-A-nor-5[alpha]-androstan-17[beta]-ol was studied and in the rat prostate gland. The data demonstrates the ability of this compound to selectively complex with the specific receptors of 5[alpha]-dihydrotestosfcerone ...
Inhibition of prostaglandin biosynthesis by eicosapentaenoic acid
(Elsevier, 1979-11)
Eicosapentaenoic acid [20:5(n-3)] is not oxidized by the purified cyclooxygenase from sheep vesicular glands in the conditions of low peroxide tone in which arachidonate [20:4(n-6)] is rapidly oxygenated. When the level ...
Automated assay of glycosidases
(Elsevier, 1978-11)
The Technicon Basic AutoAnalyzer sampler system was modified for simultaneous sampling of glycosidase(s) and substrate-buffer solutions. The inexpensive modification allows performance of automated enzyme analyses and ...
Conformational effects and cooperative interactions in poly[5(6)-vinylbenzimidazole]-catalyzed solvolyses of anionic, long-chain substrates
(Elsevier, 1974-03)
A new synthetic procedure for the monomer, 5(6)-vinylbenzimidazole, has been developed. Also, a new method for the formation of the benzimidazole moiety is reported. The monomer, 5(6)-vinylbenzimidazole, was subjected to ...
Solvolysis of p-nitrophenyl esters catalyzed by oligo-4(5)-vinylimidazoles
(Elsevier, 1971-09)
The preparation of low molecular weight poly-4(5)-vinylimidazole is described. Oligomer fractions with molecular weight ranges from a few hundred to two thousand, five hundred were obtained by fractionation through a ...
Cooperative effects involved in esterolytic reactions of cationic long chain esters catalyzed by benzimidazole-containing polymers
(Elsevier, 1974-03)
The solvolyses of positively charged esters with varying chain length catalyzed by benzimidazole, poly[5(6)-vinylbenzimidazole] and copolymers of 5(6)-vinylbenz-imidazole with acrylic acid were studied. Poly[5(6)-vinylbe ...