Although the cascading impact of predators depends critically on the relative role of lethal predation and predation risk, we lack an understanding of how human-caused stressors may shift this balance. Emergent evidence suggests that pollution may increase the importance of predator consumptive effects by weakening the effects of fear perceived by prey. However, this oversimplification ignores ...

OBJECTIVE To evaluate the sexual side effects including ejaculation after silodosin treatment in potent men with regular sexual activity, as well as possible alterations in seminal vesicle volume. METHODS Sexually active patients aged ≥ 40 years with moderate to severe lower urinary tract symptoms were enrolled prospectively. International Prostate Symptom Score (IPSS) and Quality of Life (Qo...

vealed an absent right kidney, dilated right ureter and seminal vesicle, and a normal left renal tract (Figure 1). T1 and T2-weighted MRI with gadolinium again demonstrated right renal agenesis, a dilated, non-obstructed right ureter containing proteinaceous material with no vesical connection, and a dilated right seminal vesicle (Figures 2 and 3). Cystic dilatation of the right seminal vesicle...

Human seminal plasma is made by the secretory fluids produced in the epididymis, vasa deferentia, ampulla, seminal vesicles, prostate, and bulbourethral glands. Its composition can be altered by orally or parenterally administered substances. Ethanol is secreted by the prostate in about the same concentration as by the kidney, with inhibition of spermatozoal motility. 1 Teratogenic drugs like t...

This paper reviews the recent research on the physiological role of peptide and protein substances synthesized in boar seminal vesicle glands. Secretions from these glands are the major components of seminal plasma. Unique biochemical properties of seminal vesicle proteins, which determine their numerous functions in the reproductive processes, are discussed. The discovery of phosphotyrosine ac...

Environment determines the risk of both prostate and breast cancer, and this risk can vary >10-fold. In contrast, no risk exists for human seminal vesicle cancer demonstrating tissue specificity. There is also species specificity, because there is no risk for prostate cancer in any other aging mammal except the dog. A study of evolution indicates that the prostate and breast appeared at the sam...

Chlorpirifos (CPF) is a widely used organophosphate insecticide for both agricultural and domestic purposes with attendant human exposures. Many authors have documented the toxic effects of CPF on the central nervous system. This study was designed to study the effect of CPF and the influence of coadministration of ascorbic acid (AA) on the testicular functions of albino rats. Twenty five 2 mon...

Recent studies have documented that testosterone relaxes several smooth muscles by modulating K(+) channel activities. Smooth muscles of seminal vesicles play a fundamental role in ejaculation, which might involve testosterone. This study was aimed to assess the role of testosterone in seminal vesicular motility by studying its effects on contractile agents and on the ion channels of single ves...