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Phosphatidylcholine synthesis in human spermatozoa
Phosphatidylcholine synthesis human spermatozoa
2009/2/23
To clarify the mechanism of phospholipid synthesis in spermatozoa, fresh human spermatozoa were incubated with labeled fatty acids and 1-acyl-lysophosphatidyl choline (LPC) in the presence or abse...
Influence of photoperiod, ambient temperature and melatonin on testosterone synthesis and release during reproductive maturation in male deer mice
photoperiod ambient temperature melatonin testosterone synthesis reproductive maturation male deer mice
2009/2/23
Four experiments were designed to investigate the influence of photoperiod and other environmental factors on androgen production and reproductive maturation in deer mice. Male prairie deer mice (Pe...
Suppression of the proliferative response of the seminal vesicles to testosterone by inhibitors of prostaglandin synthesis. Testosterone, indomethacin, and proliferation in seminal vesicles
seminal vesicles testosterone prostaglandin synthesis
2009/2/19
Effects of indomethacin (1.25 mg/kg) and aspirin (20 mg/kg) on testosterone-induced (0.25 mg/rat), and of indomethacin on dihydrotestosterone-induced (0.25 mg/rat) mitotic activity of the seminal ...
Synthesis and secretion of glycoprotein by the epididymal epithelium
Synthesis secretion glycoprotein epididymal epithelium
2009/2/19
The secretory activity of the middle segment of the mouse caput epididymidis was studied using 3H-fucose as a precursor to glycoprotein. Young adult male mice were injected with a concentrated sol...
A Continuous Flow Method for Organ Culture of Rabbit Epididymis：Morphology, Amino Acid Utilization, Glucose Uptake, RNA, and Protein Synthesis
epididymis organ culture glucose uptake amino acid utilization
2009/2/18
A modified perfusion system was developed to maintain an unconvoluted tubule from the corpus epididymidis of the rabbit in organ culture. The epididymal explant is submerged in a continuous flow of ...
Principal cells of the vas deferens are involved in water transport and steroid synthesis in the adult rat
Principal cells vas deferens water transport steroid synthesis adult rat
2009/2/18
Principal cells show marked structural differences in the proximal, middle, and distal regions of the vas deferens, reflective of diverse functional activities. In the present study, we performed el...
Altered basement membrane synthesis in the testis after tissue injury
Efferent duct ligation gene expression protein synthesis
2009/2/17
The basement membrane plays an important role in maintaining the structural and functional integrity of tissues. Altered basement membrane structure has been associated with severe functional impair...
Regulation of the epididymal synthesis of P26h, a hamster sperm protein
Androgens epididymis testosterone sperm surface protein
2009/2/16
We have previously identified a 26-kDa epididymal hamster sperm glycoprotein (P26h) that is involved in gamete interaction. This protein is added to the acrosomal cap during epididymal transit of sp...
Synthesis of docosahexaenoyl coenzyme A in human spermatozoa
docosahexaenoyl coenzyme A human spermatozoa
2009/2/12
The synthesis of docosahexaenoyl coenzyme A (22:6-CoA) was studied in a long-chain fatty acid: CoASH ligase (AMP)-enriched fraction from human spermatozoa and was compared to palmitoyl CoA (16:0-CoA...
Hormonal modulation of the interactions of cultured rat testicular Sertoli and peritubular myoid cells. Effects on glycosaminoglycan synthesis
Protein sulfoprotein glycosaminoglycan extracellular matrix cocultures
2009/2/11
Previous investigators have suggested metabolic cooperation between Sertoli and peritubular cells. This study concerns Sertoli cell and peritubular myoid cell interactions in terms of synthesis of...
Direct and indirect effects of murine interleukin-2, gamma interferon, and tumor necrosis factor on testosterone synthesis in mouse Leydig cells
murine interleukin-2 gamma interferon tumor necrosis factor testosterone synthesis
2009/2/11
It was recently observed that treatment of patients with a high dosage of human interleukin (IL-2) resulted in suppression of plasma concentrations of testosterone. A murine model was developed to a...
Dibromoacetic acid, a prevalent by-product of drinking water disinfection, compromises the synthesis of specific seminiferous tubule proteins following both in vivo and in vitro exposures
Disinfection by-products spermatogenesis proteomics
2008/12/29
Dibromoacetic acid (DBA) is a by-product of drinking water disinfection that alters spermatogenesis in adult male rats. To identify a mechanism by which DBA alters spermatogenesis, seminiferous tubu...
Mullerian inhibiting substance inhibits testosterone synthesis in adult rats
Anti-Mu llerian hormone primary Leydig cells
2008/12/29
Mullerian inhibiting substance (MIS) is a gonadal hormone that causes regression of the Mullerian ducts during male sexual differentiation. Postnatally, MIS inhibits the proliferation and differen...
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...
Serotonin Concentration, Synthesis, Cell Origin, and Targets in the Rat Caput Epididymis During Sexual Maturation and Variations Associated With Adult Mating Status：Morphological and Biochemical Studies
5-hydroxytryptamine tryptophan hydroxylase neuroendocrine cells male reproduction serotonin receptor spermatozoa
2008/12/24
The caput epididymis of some mammals contains large quantities of serotonin whose origin, targets, and physiological variations have been poorly studied. We combined morphological and biochemical...