Background : Y chromosomes microdeletions (YCM) are the most frequently observed structure abnormalities in the male specific region (MSY), 15% of total primary spermatogenic failure cases are related to at least 6 known major YCM patterns. These microdeletions present in 5-10% of infertile men and they are very rare in fertile and normospermia men.
Background: Over 70 million couples suffer from infertility worldwide and the majority of those couples can be found in developing countries. Aims of study: This study aims to determine if there is any significant difference in levels of inhibin B and gonadal hormones in fertile and infertile men. Subjects, Materials & Methods: Clinical and hormonal characteristics related to male infertility factor of the infertile patients(n=75)and representative proven fathers as a control(normozoospermic ones)(n=25)were studied. All males attending infertility clinic at Baquba General Hospital, Diyala in Iraq. The study included the measurement of gonadal hormones levels by using (ELISA)method and it was also used in analyzing the inhibin B hormone. The VIDAS instruments were used for enzyme immunoassay measurements Luteininzing Hormone(LH),Testosterone(T) ;and Follicle Stimulating Hormone(FSH). The samples were analyzed and classified according to WHO criteria. Results: The results of this study showed that inhibin B hormone and other gonadal hormones in control (representative proven fathers-normozoospermic ones)as inhibin B (240.2±17.4)Pg/ml, LH (1.639±0.103)mIU/ml, Testosterone (0.6253±0.035)ng/ml and FSH (0.469±0.0103)mIU/ml. In asthenozoospermic ones as an example of infertile patients the results showed that inhibin B (76.9±8.99)Pg/ml, LH(1.4311±0.033)mIU/ml, T (0.5483±0.030)ng/ml and FSH (0.495±0.0124)mIU/ml. Except the inhibin B comparisons all of other non significant evaluated parameters & correlations within this study could be ascribed to the role of cascaded role of inhibin B with the gonadal hormones in spermatogenesis. Conclusions: It concluded from this study that decreased levels of inhibin B, LH,Testosterone, but increased levels of FSH hormones were shown in asthenozoospermia group as an example of infertile patients,and increased levels of inhibin B,LH and Testosterone but decreased levels of FSH were shown in normozoospermia as control.