Sexual side effects are common with antipsychotic use. Spontaneous ejaculations without sexual arousal have been previously described with several typical and atypical antipsychotics. We report the case of a man who had spontaneous ejaculations after stopping risperidone and starting 30 mg/day aripiprazole. Spontaneous ejaculations ceased 3 days after decreasing the aripiprazole dose to 15 mg/d...

Studies were conducted to assess (a) the pH and motility of semen removed from the ductus (d.) deferens and receptaculum from males sexually rested 1 wk, (b) the pH, motility, and sperm concentration of semen after each successive ejaculation (ejaculated 3 or 5 times at 30-60 min intervals) and (c) the rate of semen replenishment and the fertility of the replenished semen after emptying the d. ...

Mating stimulation, particularly vaginal-cervical stimulation, causes estrous abbreviation in female rats. In most previous studies, female rats were repeatedly tested for sexual behavior until estrous termination occurred. Thus, it was not clear whether sensory stimulation (e.g., flank stimulation, olfactory cues) received during the repeated testing procedure contributed to estrous abbreviati...

BACKGROUND The prostate is a sexual gland that produces important substances for the potency of sperm to fertilize eggs within the female reproductive tract, and is under complex endocrine control. Taking advantage of the peculiar behavioral pattern of copulating male rats, we developed experimental paradigms to determine the influence of sexual behavior on the level of serum testosterone, pros...

Artificial insemination is a well-established and widely used method for genetic improvement in cattle breeding industry. Recently, researchers have shown an increased interest in the cryoprotective effects of minerals and antioxidants on semen. Previous studies on calcium (Ca) and magnesium (Mg), two main macro-minerals, have mainly investigated their roles in mammalian spermatogenesis and fer...

A review of our experience of 916 cases ofpartial bilateral vasectomy performed under local anaesthesia at the University Hospital, Kuala Lumpur during the period between January 1971 and June 1980 is presented. Minor post-operative complications occurred in 5.8% of cases with a low post-operative infection rate of 1.2%. In 35% ofpatients, persistence of non-motile sperms in the semen were seen...

PATIENT Male, 25 FINAL DIAGNOSIS: Post Traumatic Stress Disorder Symptoms: Insomnia • nightmares • spontaneous ejaculation MEDICATION Paroxentine Clinical Procedure: - Specialty: Psychiatry. OBJECTIVE Unusual clinical course. BACKGROUND Sexual dysfunction is reported to occur more frequently in posttraumatic stress disorder (PTSD) patients than in the general population. Herein, we presen...

PURPOSE Post-vasectomy semen analysis (PVSA) is the traditional method of confirming sterility after vasectomy. However, PVSA protocols vary in the end points accepted, and the number and timing of tests. In this systematic review we make evidence based recommendations on the appropriate PVSA protocol. MATERIALS AND METHODS Databases (MEDLINE, Current Contents, Cochrane Library and EMBASE) we...

Sexually satiated males cease copulating after several ejaculations with the same female; and the presence of an unknown receptive female renews copulation including ejaculation, a process named the Coolidge effect. It is believed that the Coolidge effect has the aim to impregnate another female, although it is known that the sperm count gradually decreases after consecutive ejaculations. The m...