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Your search keyword '"Androstanes metabolism"' showing total 19 results
Start Over Descriptor "Androstanes metabolism" Journal journal of steroid biochemistry
19 results on '"Androstanes metabolism"'

1. Comparison of testosterone, 5alpha-dihydrotestosterone and 5alpha-adrostane-3beta, 17beta-diol metabolisms in human normal and hyperplastic prostates.

Author

Morfin RF, Di Stefano S, Bercovici JP, and Floch HH

Subjects
Adolescent, Adult, Cytosol metabolism, Humans, Male, Microsomes metabolism, NADP pharmacology, Androstane-3,17-diol metabolism, Androstanes metabolism, Dihydrotestosterone metabolism, Prostate metabolism, Prostatic Hyperplasia metabolism, Testosterone metabolism
Published
1978
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3. Neonatal androgenic programming of hepatic steroid metabolism in rats.

Author

Gustafsson JA, Ingelman-Sundberg M, and Stenberg A

Subjects
Animals, Castration, Cytosol metabolism, Estradiol pharmacology, Female, Hypophysectomy, Liver drug effects, Liver enzymology, Male, Microsomes, Liver metabolism, Ovary physiology, Pituitary Gland physiology, Rats, Steroid Hydroxylases metabolism, Testis physiology, Testosterone pharmacology, Androgens physiology, Androstane-3,17-diol metabolism, Androstanes metabolism, Androstenedione metabolism, Animals, Newborn metabolism, Liver metabolism
Published
1975
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4. Adrenocortical factors in hypertension. II The significance of 16-oxygenated C-19 steroids.

Author

Ulick S and Ramirez LC

Subjects
Androstanes urine, Cross Reactions, Female, Humans, Hydroxysteroids blood, Hydroxysteroids metabolism, Hydroxysteroids urine, Ketosteroids blood, Ketosteroids metabolism, Ketosteroids urine, Pregnancy, Pregnancy Trimester, Second, Pregnancy Trimester, Third, Radioimmunoassay, Sulfuric Acids urine, Adrenal Cortex physiopathology, Adrenal Glands physiopathology, Androstanes metabolism, Hypertension physiopathology
Published
1976
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6. Steroid metabolism in testis tissue: concentrations of unconjugated and sulfated neutral steroids in boar testis.

Author

Ruokonen A and Vihko R

Subjects
Androstanes metabolism, Androstenes metabolism, Androstenols metabolism, Animals, Chromatography, Chromatography, Gas, Chromatography, Gel, Chromatography, Thin Layer, Computers, Male, Mass Spectrometry, Nandrolone metabolism, Pregnanes metabolism, Pregnenolone metabolism, Progesterone metabolism, Silicon Dioxide, Snails enzymology, Sulfatases, Sulfuric Acids metabolism, Steroids metabolism, Swine metabolism, Testis metabolism
Published
1974
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7. Metabolism of unsaturated bile acids and androstanes by human faecal bacteria.

Author

Owen RW and Bilton RF

Subjects
Androstadienes metabolism, Androstenedione analogs & derivatives, Androstenedione metabolism, Deoxycholic Acid analogs & derivatives, Deoxycholic Acid metabolism, Humans, Lithocholic Acid analogs & derivatives, Lithocholic Acid metabolism, Oxidation-Reduction, Pregnadienes metabolism, Vitamin K pharmacology, Androstanes metabolism, Bacteria metabolism, Bile Acids and Salts metabolism, Feces microbiology
Abstract

The metabolism of unsaturated bile acids and androstanes by mixed human faecal cultures has been studied. The reactions observed were mainly reductive. Unsaturated 4-ene-3-oxo and 1,4-diene-3-oxo bile acids were reduced in Ring A. 5 beta-3-Oxo bile acids were reduced to 5 beta-3-hydroxy bile acids. 4-Ene, 1,4-diene and 4,6-diene-3,17-dioxo-androstanes were reduced in Ring A with concomitant reduction of oxo groups to hydroxyl groups. The Gram-negative facultative anaerobic faecal bacteria are implicated in the reductive process, whilst the genus Clostridium does not appear to be important. Inclusion of menadione, a synthetic form of vitamin K, retards the reductive process.

Published
1985
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8. Lack of metabolism of progesterone to 5 alpha-products in dog and guinea pig testes compared with immature rat testes.

Author

Terada N, Wakimoto H, Mizutani S, and Matsumoto K

Subjects
Age Factors, Androstanes metabolism, Androstenes biosynthesis, Androsterone biosynthesis, Animals, Dogs, Guinea Pigs, Hydroxyprogesterones biosynthesis, In Vitro Techniques, Male, Mice, Pregnenolone metabolism, Rats, Species Specificity, Testosterone biosynthesis, Androstanes biosynthesis, Progesterone metabolism, Testis metabolism
Published
1979
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10. Metabolism in vitro of dihydrotestosterone, 5alpha-androstane 3alpha, 17beta-diol and its 3beta-epimer, three metabolites of testosterone, by three of its target tissues, the anterior pituitary, the medial basal hypothalamus and the seminiferous tubules.

Author

Kao LW, Lloret AP, and Weisz J

Subjects
Animals, Humans, Male, Organ Specificity, Rats, Structure-Activity Relationship, Androstane-3,17-diol metabolism, Androstanes metabolism, Dihydrotestosterone metabolism, Hypothalamus metabolism, Pituitary Gland, Anterior metabolism, Seminiferous Tubules metabolism, Testis metabolism, Testosterone metabolism
Published
1977
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12. Uptake, metabolism and binding of various androgens in human prostatic tissue: in vivo and in vitro studies.

Author

Becker H, Horst HJ, Krieg M, Steins P, and Voigt KD

Subjects
Androstane-3,17-diol blood, Carrier Proteins blood, Chromatography, Thin Layer, Cytosol metabolism, Dihydrotestosterone blood, Humans, Male, Muscles metabolism, Prostate ultrastructure, Prostatic Hyperplasia metabolism, Prostatic Hyperplasia pathology, Testosterone blood, Androstane-3,17-diol metabolism, Androstanes metabolism, Dihydrotestosterone metabolism, Prostate metabolism, Testosterone metabolism
Published
1975
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15. Interconversion between 17beta-hydroxy-5alpha-androstan-3-one (5alpha-dihydrotestosterone) and 5alpha-androstane-3alpha,17beta-diol: tissue specificity and role of the microsomal NAD: 3alpha-hydroxysteroid oxidoreductase.

Author

Verhoeven G, Heyns W, and De Moor P

Subjects
Animals, Female, In Vitro Techniques, Male, NAD, Organ Specificity, Rats, 3-Hydroxysteroid Dehydrogenases metabolism, Androstane-3,17-diol metabolism, Androstanes metabolism, Dihydrotestosterone metabolism, Microsomes enzymology
Published
1977
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16. Receptors for androgens in rat epididymis. Interactions with 5alpha-androstane-3alpha,17beta-diol.

Author

Calandra RS and Blaquier DA

Subjects
Alcohol Oxidoreductases, Animals, Castration, Catalase, Cattle, Cell Nucleus metabolism, Centrifugation, Density Gradient, Cytoplasm metabolism, Cytosol metabolism, Epididymis cytology, Hydroxysteroids metabolism, In Vitro Techniques, Male, Myocardium enzymology, Rats, Serum Albumin, Bovine, Sucrose, Testis physiology, Tritium, Yeasts, Androgens metabolism, Androstanes metabolism, Epididymis metabolism, Receptors, Cell Surface
Published
1973
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17. Elimination of tritium from metabolites of (16- 3 H)-pregnenolone.

Author

de Bruijn HW and van der Molen HJ

Subjects
17-alpha-Hydroxypregnenolone isolation & purification, Androstanes metabolism, Androstenedione isolation & purification, Animals, Carbon Isotopes, Dehydroepiandrosterone metabolism, Hydrolysis, In Vitro Techniques, Male, Pregnenolone biosynthesis, Rabbits, Testis metabolism, Testosterone metabolism, Tritium, Pregnenolone metabolism
Published
1973
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18. The effect of adenosine 3',5'-cyclic-monophosphoric acid on the 17beta-hydroxysteroid dehydrogenase of rat testis.

Author

Sulimovici S and Lunenfeld B

Subjects
17-Ketosteroids metabolism, Androstanes metabolism, Animals, Carbon Isotopes, Electron Transport, Hydroxysteroid Dehydrogenases antagonists & inhibitors, In Vitro Techniques, Ketosteroids metabolism, Male, Microsomes enzymology, Mitochondria enzymology, NAD administration & dosage, NAD metabolism, NADP metabolism, Rats, Testis cytology, Testosterone biosynthesis, Tritium, Cyclic AMP pharmacology, Hydroxysteroid Dehydrogenases metabolism, Testis enzymology
Published
1972
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19. Bile acids and hormonal steroids in bile of a boy with 3 -hyseoxysteroid dehydrogenase deficiency.

Author

Laatikainen T, Perheentupa J, Vihko R, Makino I, and Sjövall J

Subjects
17-Hydroxycorticosteroids metabolism, 17-Ketosteroids metabolism, Androstenes metabolism, Androsterone metabolism, Animals, Child, Chromatography, Gas, Chromatography, Thin Layer, Dehydroepiandrosterone metabolism, Glucuronates metabolism, Humans, Hydroxysteroids metabolism, Ketosteroids metabolism, Male, Mass Spectrometry, Pregnenes metabolism, Pregnenolone metabolism, Sulfuric Acids metabolism, Androstanes metabolism, Bile metabolism, Bile Acids and Salts metabolism, Hydroxysteroid Dehydrogenases, Liver enzymology, Metabolism, Inborn Errors metabolism, Pregnanes metabolism
Published
1972
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