Fifty (50) seminal samples were studied to determine the microbial influence in male infertility as well as the qualitative and quantitative features of the semen. Among the three bacterial isolates isolated from the sample, Staphylococcus aureus 7(77.8%) was found to be the most predominant isolate, other isolates were Escherichia coli 1(11.1%) and Citrobacter spp. In relation to semen concent...

The natural transmission of microdeletions of the Y chromosome is occasionally reported in the literature. Here we describe the natural transmission of a partial AZFb deletion over three generations. PCR amplification of several sequence tagged site markers in the three AZF regions of the Y chromosome was carried out in a patient with oligoasthenoteratozoospermia, his father and his naturally c...

AIM To determine whether there was any regional variation in the prevalence of azoospermia, oligozoospermia and mean sperm counts in male partners of infertile couples from different parts of India. METHODS Data on 16,714 semen samples analyzed over the past five years from six different laboratories located in five cities of India were collated and evaluated. RESULTS There was a regional v...

A multi-centre study was undertaken to: a/ determine the density of human semen, and b/ assess the validity of measuring semen volume either volumetrically or gravimetrically. Semen samples from four clinical categories (azoospermia following vasectomy, azoospermia without vasectomy, oligozoospermia (<20x10(6)/ml) and normozoospermia (>/=20x10(6)/ml)) had similar densities (one-way ANOVA: F(3,1...

Dear Editor Infertility affects approximately 15% of couples worldwide. Within 50% of cases, man provides reproductive function disorders (1). The cause of infertility in men with oligospermia and azoospermia seems to be due to underlying genetic abnormalities (2). Chromosomal abnormalities are one of the causes of human infertility as they interfere with spermatogenesis. The frequency of chrom...

The actin-based cell-cell adherens junction (AJ) between the Sertoli cell and the germ cell in the mammalian testis is important not only in mechanical adhesion of the cells, but in the morphogenesis and differentiation of the germ cells. The Sertoli ectoplasmic specialization (ES), a specialized type of AJ, is associated with Sertoli-spermatid binding and is important in cell-cell adhesion in ...

Objective: To evaluate association of blood and seminal plasma lead and cadmium with sperm quality of non-occupationally exposed male partners of couples with infertility. Materials and methods: A cross-sectional study was conducted on 75 men aged 20-45 years (mean = 37.1 ± 7.0 yrs.) with infertility recruited from the Fertility Clinic of a hospital in Abakaliki. Sperm count done in accordance ...

Atypical, additional, metacentric chromosomes, approximating in size to that of G group chromosomes, have been reported in patients with undifferentiated types ofmental retardation and congenital malformation (Fr0land, Holst, and Terslev, 1963; Gustavson, Atkins, and Patricks, 1964; Taft, Dodge, and Atkins, 1965; Tamburro and Johnson, 1966; Ferrante et al., 1968; Ishmael and Laurence, 1968; Muk...

PURPOSE To investigate whether the semen quality of men undergoing conventional semen analysis is deteriorating over time. MATERIALS AND METHODS We analyzed and compared the sperm count, motility and morphology of 2300 semen samples provided by males undergoing conventional seminal analysis, from years 2000 to 2002 and 2010 to 2012. The incidences of severe oligozoospermia and azoospermia ove...