نتایج جستجو برای: sperm abnormality
تعداد نتایج: 182910 فیلتر نتایج به سال:
Percutaneous epididymal sperm aspiration (PESA), percutaneous testicular sperm aspiration (TESA) and testicular sperm extraction (TESE) are invasive procedures and their consequences on the testis have not been clearly defined. In order to relate the sonographic and colour Doppler flow changes to the clinical data, 14 patients with non-obstructive and six with obstructive azoospermia were exami...
Semen from young and old guinea fowl was examined for macrophages and abnormal sperm cells. Large numbers of macrophages were found in the semen from both groups. However, there were significantly more abnormal sperm cells in the semen of the young males. The abnormal cells consisted of large coiled cells, bent spermatozoa, and round-headed cells. The predominant abnormality in the young males ...
Follicle stimulating hormone (FSH) is considered to be essential for spermatogenesis. Therefore, genetic abnormalities of FSH signalling on testicular Sertoli cells would be expected to affect sperm production negatively in males. Inactivating FSH receptor mutations have been reported earlier in both males and females. All affected males had elevated FSH serum concentrations and abnormal sperm ...
It has been reported that mental stress causes abnormality of spermiogram parameters. We investigated the effect of psychological stress on the L-arginine-nitric oxide (NO) pathway. Semen samples were collected from 29 healthy fourth semester medical students just before (stress) and 3 months after (non-stress) the final examinations. Psychological stress was measured by the State Anxiety Inven...
OBJECTIVE To determine bilateral effects of unilateral iatrogenic vas deferens trauma (UIT) on epididymal sperm characteristics and in vitro fertilizing capacity in an experimental mouse model. METHODS Experiments were performed on three equal groups each comprising six adult male mice. Following anaesthesia, UIT was induced by clamping left vas deferens with a mosquito clamp in fully locked ...
Background: Not all patients benefit from ICSI. To establish the factors that affect the success rate of ICSI is probably useful in determining the prognosis of ICSI. The aim of this study was the evaluation of the relationship between semen parameters and the outcome of the Intra Cytoplasmic Sperm Injection( ICSI).Methods: A retrospective case control study was performed on 523 infertile ...
Introduction: Hypoxia is a common leading cause of detrimental effect on structure and function of tissue during increase in the production of reactive oxygen species that are generated during the re-oxygenation phase of intermittent continuous hypobaric hypoxia and contribute to physiological responses. This study was carried out to evaluate the effects of flaxseed (Fx) in reducing the inciden...
Background: It is undeniable that the increasing of the population in the developing countries is an anxiety, therefore finding safe and effective contraceptive Materialss can be very useful. The aim of this study was to investigate the effects of Anethum graveolens L on the reproductive system of male rat and CREM gene expression in testis of rat. Materials and Methods: Animals were randomly d...
Anti-fertility effect of ethanol extract of whole plant extract of Polygala javana was observed in male albino rats. The relative weight of the testes and epididymis were decreased. The epididymal sperm count, motility and sperm abnormality were reduced significantly in treated rats. There was an increase in serum urea, creatinine and the activity of liver marker enzymes (SGOT, SGPT and ALP) le...
BACKGROUND Stanozolol (ST) is a synthetic anabolic-androgenic steroid often abused by athletes. An increasing body of evidence points towards the role of ST misuses in the pathogenesis of a wide range of adverse effects including reprotoxicity. OBJECTIVE The aim of this study was to analyze the possible reproprotective effect of royal jelly (RJ) as an efficient antioxidant in ST-treated mice....
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