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Alterations in the pulsatile properties of gonadotropin secretion in alcoholic men
Alterations pulsatile properties gonadotropin secretion alcoholic men
2009/2/23
The functional characteristics of the hypothalamic-pituitary-testicular axis were examined quantitatively in 10 chronic alcoholic men without hepatic dysfunction or clinical nutritional deficiencies...
Alterations of testicular function induced by hyperprolactinemia in the rat
testicular function hyperprolactinemia rat
2009/2/20
The effects of hyperprolactinemia on testicular structure and pituitary-gonadal function were investigated in male rats. Hyperprolactinemia was induced in the Wistar-Furth rat by implantation of t...
Notulae seminologicae. 5. Mathematical evaluation of interdependent submicroscopic sperm alterations
Seminology electron microscopy mathematical formula Bayes theory sperm pathology human infertility
2009/2/13
This paper concerns the mathematical evaluation of sperm quality as examined by electron microscopy. Proceeding with a Bayesian technique, we have developed a formula considering all statistical pos...
Alterations of testicular function after induced autoimmune orchitis in rats
testicular function induced autoimmune orchitis rats
2009/2/12
The endocrinological profile of animals with experimental autoimmune orchitis (EAO) has not been sufficiently explored. With this purpose orchitis was induced in adult rats by active immunization ...
Long-term alterations in the permeability of the blood-testis barrier following a single intratesticular injection of dilute aqueous glycerol
Blood-testis barrier permeability glycerol seminiferous tubules Sertoli cells
2009/2/12
The mechanism whereby glycerol exerts its antispermatogenic action is not known. The objective of this study was to determine, with the use of [3H]inulin and [125I]albumin by in vivo and in vitro ...
Studies on sperm chromatin structure alterations and cytogenetic damage of mouse sperm following in vitro incubation. Studies on in vitro-incubated mouse sperm
sperm chromatin structure alterations cytogenetic damage of mouse sperm
2009/2/12
Mouse epididymal sperm incubated in Tyrode's T6 fertilization media were analyzed over time for chromosome damage by two methods. First, cytogenetic analysis was done on paternal pronuclei metapha...
Biochemical alterations in the proacrosin-acrosin system during epididymal maturation of the rat spermatozoa
Biochemical alterations proacrosin-acrosin system epididymal maturation rat spermatozoa
2009/2/10
Acrosin, an acrosomal serine protease, is believed to have a role in fertilization. The enzyme is synthesized in an enzymatically inactive precursor form, proacrosin, and is processed to enzymatical...
Effects of hypophysectomy and alterations in spermatogenic function on Leydig cell volume, number, and proliferation in adult rats
Pituitary spermatogenesis luteinizing hormone Leydig cell proliferation
2009/2/6
The two major objectives of this study were to determine (i) whether the pituitary is required to maintain Leydig cell number per testis, and (ii) whether alterations in spermatogenic function in ...
Alterations in sperm characteristics of follicle-stimulating hormone（FSH）-immunized men are similar to those of FSH-deprived infertile male bonnet monkeys
Alterations sperm characteristics follicle-stimulating hormone（FSH）-immunized men FSH-deprived infertile male bonnet monkeys
2008/12/25
The quality of sperm ejaculated by bonnet monkeys and normal, healthy proven fertile volunteer men, both actively immunized with ovine follicle-stimulating hormone (oFSH), was examined at different ...
Postvasectomy alterations in protein synthesis and secretion in the rat caput epididymidis are not repaired after vasovasostomy
Postvasectomy alterations protein synthesis secretion rat caput epididymidis vasovasostomy
2008/12/25
Many men who have undergone vasectomy later request vasovasostomy. Unfortunately, significant numbers of these men remain infertile despite the reestablishment of patent ducts. This report examine...
5-Aza-2'-Deoxycytidine Induces Alterations in Murine Spermatogenesis and Pregnancy Outcome
DNA methylation 5-azacytidine DNMT DNMT1 mouse fertility DNA methyltransferase
2008/12/19
Because of the ability of cytidine analogues, such as 5-aza-2'-deoxycytidine, to incorporate into DNA and lead to decreases in DNA methylation, there has recently been renewed interest in using thes...