title: Modifications in the testis steroidogenic pathways in rats fed with cottonseed flour.
abstract: Suppression of the testicular T production by effect of the CSF has been previously reported. Changes in the testicular content of intermediates and precursors of T biosynthesis were determined in rats fed during 28 days with diets containing 25,35 and 50% of CSF and compared with a defated cottonseed flour diet group and a control Purina-chow diet group. Also described were modifications during a six wk post CSF diet period. The results showed a diminution in pregnenolone and progesterone testicular content to a third and a half of the control values (21.5 and 19.3 pg/mg of protein respectively). Other compounds in the delta 5 pathway, 17 hidroxypregnenolone and dehydroepiandrosterone were undetectable since the 35% CSF diet, the 17 hidroxyprogesterone diminished to undetectable values only with the maximal (50%) CSF content diet. During the post CSF diet period all the steroids showed a tendency toward the control values. The 25% CSF content diet group reached the initial contents; other groups presented different recovery degrees. The most affected was the 50% diet group with a direct effect of the CSF on the testicular androgen steroidogenesis affecting both the delta 4 and the delta 5 pathways.
mesh_terms: D006907:17-alpha-Hydroxypregnenolone / Q000096:biosynthesis; D019326:17-alpha-Hydroxyprogesterone; D000728:Androgens / Q000096:biosynthesis*; D000818:Animals; D003369:Cottonseed Oil / Q000008:administration & dosage / Q000494:pharmacology*; D003687:Dehydroepiandrosterone / Q000096:biosynthesis; D004032:Diet; D006072:Gossypol / Q000494:pharmacology; D006908:Hydroxyprogesterones / Q000096:biosynthesis; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D011284:Pregnenolone / Q000096:biosynthesis; D051381:Rats; D013737:Testis / Q000187:drug effects / Q000378:metabolism*; D013739:Testosterone / Q000096:biosynthesis
chemical_list: D000728:Androgens; D003369:Cottonseed Oil; D006908:Hydroxyprogesterones; D006907:17-alpha-Hydroxypregnenolone; D013739:Testosterone; D003687:Dehydroepiandrosterone; D019326:17-alpha-Hydroxyprogesterone; D011284:Pregnenolone; D006072:Gossypol