This study focused on the role of sodium-bicarbonate cotransporter (NBC1) in cAMP-stimulated ion transport in porcine vas deferens epithelium. Ion substitution experiments in modified Ussing chambers revealed that cAMP-mediated stimulation was dependent on the presence of Na(+), HCO, and Cl(-) for a full response. HCO-dependent current was unaffected by acetazolamide, bumetanide, or amiloride b...

The aim of the present study was to evaluate the effect of aflatoxin on histopathological and biochemical changes in the vas deferens of mice and its possible amelioration on pretreatment with vitamin E. Adult male albino mice were orally administered with 25 and 50 μg of aflatoxin/animal/day for 45 days. Vas deferens was isolated and processed for histopathological and biochemical analysis. Re...

Although men who have CF can enjoy a normal sex life, they are almost always (in about 98% of cases) infertile due to failure of the vas deferens, the tube which carries sperm from the testis to the penis, to develop properly (Kaplan et al, 1968). The epididymis sits on top of the testis like a cap. Normally the vas deferens carries the newly made sperm to the back of the prostate gland where i...

The synthesis of new fentanyl analogues in which the benzene ring of the propioanilido group has been replaced by phenylpyrazole is described. Antinociceptive activity was evaluated using the writhing and hot plate tests in mice. Two compounds, and, showed interesting analgesic properties, being more potent than morphine and less than fentanyl but with longer duration of action. These compounds...

BACKGROUND Relaxin is the endogenous ligand of the G-protein coupled receptor RXFP1, previously known as LGR7. In humans relaxin can also activate, but with lower affinity, the closely related receptor for the insulin-like peptide from Leydig cells, RXFP2, previously known as LGR8. The lack of relaxin impairs male fertility but the precise distribution and the function of relaxin receptors in t...

The effect of specific alpha[ or alpha2 adrenoceptor agents on the response of rat superior mesenteric-portal vein to field stimulation was investigated. In. a dose related manner, phenylephrine (alpha[ agonist) and yohimbine (alpha2 antagonists) increased while prazosin (alpha[ antagonist) and clonidine (alpha2 agonist) decreased the response of the vein to field stimulation. These effects are...

A transgenic mouse approach was used to examine the mechanism of principal cell-specific expression of aquaporin-2 (AQP2) within the renal collecting duct. RT-PCR and immunocytochemistry revealed that murine AQP2 was expressed in principal cells in the renal collecting duct, epithelial cells of the vas deferens, and seminiferous tubules within testis. The vas deferens expression was confirmed i...