hypospermatogenesis


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hypospermatogenesis

[¦hī·pō·spər‚mad·ə′jen·ə·səs]
(medicine)
Decreased sperm production.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In the AZFc region, partial deletion of DAZ gene caused hypospermatogenesis. 30
Since there was no information regarding TESE(-) subdivision, it was suggested that the closest classified group to TESE(+) and fertile group was hypospermatogenesis. The other two groups were maturation arrest or germinal aplasia (Sertoli-cell-only syndrome) (22).
Varicocele: Relation between anoxia and hypospermatogenesis. Int J Fertil 1977;22:174-8.
The severities of spermatogenic arrest and hypospermatogenesis have been reported to be correlated with VC duration [15].
[12], who found sperm in 100% of 76 repeated sperm retrieval procedures (TESA, PESA, and TESE) in men with obstructive azoospermia, and with Hussein [28], who found a decreased chance of finding sperm by repeat sperm retrieval in men with hypospermatogenesis and maturation arrest.
Cytological Findings Indices Interpretation Most of native cell Sertoli index 50% or Normal seen below Spermatic index 50% or below Most of native cells Sertoli index above Hypospermatogenesis seen 50% Spermatic index 50% or below Germ cells identified Sertoli index 50% or Maturation arrest only to a particular below Spermatic index level of maturation zero Germ cells identified Sertoli index above Maturation arrest only to a particular 50% Spermatic index +Hypospermatogeneis level of maturation zero Spermatozoa out Sertoli index 50% or Duct obstruction number other native below Spermatic index cells above 50% Sertoli cells only Sertoli index 100% Total atrophy/ seen Spermatic index zero Sertoli cell only syndrome * Spermatic index (Number of spermatozoa per 100 spermatogenic cells.
Studies have observed that testicular biopsies from infertile Nigerian men showed a variety of pathological conditions; the most prevalent was hypospermatogenesis. Patients without testicular biopsies had clinically detectable testicular or epididymal abnormalities.
A: In one of our studies, we determined the reproductive hormones and morphological changes induced by mobile phone radiation and found that long-term exposure to mobile phone radiation leads to reduction in serum testosterone levels and cause hypospermatogenesis and maturation arrest in the spermatozoa in the testis of albino rats.
It is then possible to speculate that this reduced expression could lead to lactate deprivation in germ cells with subsequent hypospermatogenesis [45].
BACKGROUND: In utero exposure to endocrine-disrupting chemicals may contribute to testicular dysgenesis syndrome (TDS), a proposed constellation of increasingly common male reproductive tract abnormalities (including hypospadias, cryptorchidism, hypospermatogenesis, and testicular cancer).