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Sexual maturation in underfed weight-matched rats. A test of the“critical body weight”theory of pubertal timing in males
Sexual maturation underfed weight-matched rats critical body weight
2009/2/23
A popular current theory proposes that the timing of puberty is related to attainment of a critical level of body weight or body fatness. These critical body weight and critical body fat theories ha...
The incidence of spermatic granulomas and their relation to testis weight after vasectomy and vasovasostomy in Lewis rats
spermatic granulomas testis weight vasectomy vasovasostomy Lewis rats
2009/2/23
The occurrence of spermatic granulomas of the vas deferens was studied in Lewis rats at intervals up to 7 months after vasectomy or vasectomy followed 3 months later by vasovasostomy. The incidence ...
Low molecular weight FSH binding inhibitor in bovine testis
Low molecular weight FSH bovine testis
2009/2/23
Purification of low Mr (less than 5000) inhibitors of FSH binding to receptors has been hampered by their low concentration in tissue extracts and physiologic fluids. The calf testis represents an a...
Low-molecular-weight Inhibin from Sheep, Human, Rat, and Chicken Testes
inhibin testes avian mammalian
2009/2/19
Low-molecular-weight peptides with inhibin activity have been isolated from sheep, human, rat, and chicken testes by simple gel filtration. These peptides, isolated from avian and mammalian specie...
Serum dihydrotestosterone and testosterone concentrations in human immunodeficiency virus-infected men with and without weight loss
estosterone DHT AIDS wasting HIV-associated
2009/2/18
Weight loss is an important determinant of disease outcome in human immunodeficiency virus (HIV)-infected men. Others have suggested that a defect in dihydrotestosterone (DHT) generation contribut...
4-MAPC, a 5 alpha-reductase inhibitor, reduces rat ventral prostate weight, DNA, and prostatein concentrations
4-MAPC, a 5 alpha-reductase inhibitor rat ventral prostate weight DNA prostatein concentrations
2009/2/7
Several compounds, such as 4-MAPC (4-methyl-3-oxo-4-aza-5 alpha-pregnane-20- carboxylate), that inhibit conversion of testosterone (T) to dihydrotestosterone (DHT) by 5 alpha-reductase have been demon...
Age as a factor influencing the power and sensitivity of experiments for assessing body weight, testis size, and spermatogenesis in rats
Experimental design daily sperm production spermatogenesis testes
2009/2/6
Data from 25 rats aged 60, 150, or 240 days (n = 75) were used to determine the number of observations per rat and or rats per treatment group needed to provide future experiments of known power and...