aspermia/تستوستيرون

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14 النتائج

Age-related changes in blood concentrations of FSH, LH and testosterone and testicular morphology in a new rat sterile mutant with hereditary aspermia.

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A new rat mutant showing aspermia was investigated. Groups of 4-7 mutant male rats were killed at 3, 5, 10, 15 and 25 weeks of age. Examination by microscope showed apparent abnormalities in the seminiferous epithelium from 3 weeks of age onward. Inclusion-like bodies were observed in the cytoplasm

[The clinico-morphological aspects of aspermia].

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The clinico-morphologic, clinico-endocrinologic, and morpho-endocrinologic parallels were studied in 126 males with aspermia who underwent genitography and biopsy of the testes. On the basis of the findings, the structure of male sterility in aspermia was exactly identified and the differential

[Current aspects of hormone diagnosis in andrology--predictive values for the preservation of spermatogenesis].

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The occurrence of hormonal disorders in 1.4 to 9.7% of the patients of andrology units justify a corresponding hormone analysis. Besides helping to make the differential-diagnosis of a disease hormone results are important for the description of preservation of spermatogenesis in cases of aspermia

Dihydrotestosterone prevents spontaneous adenocarcinomas in the prostate-seminal vesicle in aging L-W rats.

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BACKGROUND Gene-regulated mechanisms govern tumor development, but the actual development of tumors can be suppressed or promoted by epigenetic factors. Lobund-Wistar (L-W) rats are genetically predisposed to development of spontaneous and induced metastasizing moderately differentiated

Biosterilant effects of Bacillus thuringiensis kurstaki HD-73 extract on male Wistar albino rats.

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Chemosterilants have long been used in sterilization programs for managing pet, stray, and wild animals but adverse effects such as trauma, incomplete responses to treatment, and complete abolition of gonadal sources of testosterone often occurs. This study describes the biosterilant effects of

Male reproductive system in patients exposed to ionizing irradiation in the Chernobyl accident.

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Twelve men with different forms and stages of chronic radiation dermatitis caused by accidental exposure to beta and gamma irradiation during and after the Chernobyl atomic power plant accident were examined. Two patients had impotentia coeundi, and the others reported various impairments of sexual

History of cryptorchidism and ejaculate volume as simple predictors for the presence of testicular sperm.

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Testicular volume, hormones, and growth factors are used as predictors of finding motile testicular sperm in azoospermic men. In this study, the possible predictive value of very simple parameters such as systematic history, clinical examination, and determination of ejaculate volume have been

Effects of dietary 17 beta-estradiol exposure on serum hormone concentrations and testicular parameters in male Crl:CD BR rats.

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A 90-day/one-generation reproduction study was conducted in male and female Crl:CD BR rats using dietary levels of 0, 0.05, 2.5, 10, and 50 ppm 17 beta-estradiol. The goals of this study were to set dose levels and evaluate several mechanistic endpoints for inclusion in multigeneration reproduction

Congenital anorchism: diagnostic and therapeutic aspects.

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Eight patients with congenital anorchism were examined and treated. Plasma LH, FSH, and testosterone concentrations and the saliva testosterone level were measured by RIA in 3 patients. The results showed a 2.75 times increase in LH level, a 1.66 times increase in FSH level, and hardly measurable

Effects of Saikokaryukotsuboreito on Spermatogenesis and Fertility in Aging Male Mice.

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BACKGROUND Aspermia caused by exogenous testosterone limit its usage in late-onset hypogonadism (LOH) patients desiring fertility. Saikokaryukotsuboreito (SKRBT) is reported to improve serum testosterone and relieve LOH-related symptoms. However, it is unclear whether SKRBT affects fertility. We

Anabolic steroid-associated hypogonadism in male hemodialysis patients.

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Hypogonadism in male hemodialysis patients has been previously reported. However, its precise pathogenesis has not yet been clarified. Mepitiostane and nandrolone decanoate are anabolic steroids prescribed for uremic anemia, and those may possibly exacerbate uremic gonadal damage. We studied the

Causes of male infertility: a 9-year prospective monocentre study on 1737 patients with reduced total sperm counts.

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What are the primary causes of severe male factor infertility? Although 40% of all patients showed primary causes of infertility, which could be subdivided into three groups based on the severity of their effect, ~75% of oligozoospermia cases remained idiopathic. There are few large-scale

Celery oil modulates DEHP-induced reproductive toxicity in male rats.

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The objective of the study was to investigate the protective effect of Apium graveolens (AP) against di-(2-ethylhexyl) phthalate (DEHP)-induced testes injury in rats. Adult rats were divided into nine groups: (1) control group (no treatment); (2) corn oil (60 μg/kg body weight - bwt); (3) AP (50

[Crossing blue fox (Alopex lagopus) to red fox (Vulpes vulpes) using artificial insemination].

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An experiment with breeding red fox to blue fox by artificial insemination is described. The conception rate obtained was low. Of five blue fox vixens three whelped, and average litter size was 6.5. None of the six red fox vixens whelped. Examination of semen from the hybrid males showed aspermia.

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Herbal & Natural Medicine

قاعدة بيانات الأعشاب الطبية الأكثر اكتمالا التي يدعمها العلم

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