STUDIES ON MEIOTIC CHROMOSOMES IN INFERTILE MEN AND CONTROLS WITH NORMAL KARYOTYPES
نویسندگان
چکیده
منابع مشابه
Meiotic anomalies in infertile men with severe spermatogenic defects.
BACKGROUND This study was aimed at evaluating the rate of pairing failure in pachytene spermatocytes of patients presenting either an obstructive (O) or a non-obstructive (NO) infertility. METHODS Forty-one patients and 13 controls underwent testicular biopsy. Among the patients, 19 had an O infertility and 22 a NO infertility. Preparations of all patients and controls were Giemsa-stained, an...
متن کاملAnalyses of meiotic chromosomes in testicular biopsies of infertile patients.
Between 1989 and 1992 meiotic chromosome studies and synaptonemal complex analyses were evaluated using light and, in part, electron microscopy in 46 infertile males with highly abnormal spermiograms. This examination focused on whether the breakdown of spermatogenesis could be attributed to pairing anomalies of bivalents. The study of meiotic chromosomes and synaptonemal complexes indicated no...
متن کاملP-7: Comparison between Occupational Exposures of Infertile Men with Idiopathic Azoospermia and Healthy Controls
Background: Although idiopathic azoospermia is a common reason for male infertility, the known etiological factors for this disease are remarkably very little. Recent evidences suggest that some occupational physical and chemical hazards could have negative effects on reproductive function and semen quality parameters of exposed workers. This study conducted to compare demographic characteristi...
متن کاملChromosomal studies in infertile men with oligozoospermia & non-obstructive azoospermia.
BACKGROUND & OBJECTIVE Chromosomal anomalies have been postulated to be as one of the principal genetic factors in male infertility. Cytogenetic evaluation of men with severely compromised semen parameters reveals an increased incidence of chromosomal aberrations when compared with the normal population. The objective of this study was to determine the chromosomal constitution and sperm charact...
متن کامل‘Infertile’ studies on mitochondrial DNA variation in asthenozoospermic Tunisian men
We reviewed five studies undertaken by the same research group on the possible links between mitochondrial DNA (mtDNA) variation and asthenozoospermia, all carried out on Tunisian men. A thorough assessment of these articles reveals that all five studies were carried out on virtually the same cohort of patients, although this information was concealed by the authors. Thus, the results were 'sli...
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ژورنال
عنوان ژورنال: Reproduction
سال: 1973
ISSN: 1470-1626,1741-7899
DOI: 10.1530/jrf.0.0350023