Aim： To evaluate whether inhibin-B can predict the outcome of a microsurgical epidymal sperm aspiration （MESA） procedure in patients with suspected primary obstructive azoospermia （OA） and if inhibin-B can replac...Aim： To evaluate whether inhibin-B can predict the outcome of a microsurgical epidymal sperm aspiration （MESA） procedure in patients with suspected primary obstructive azoospermia （OA） and if inhibin-B can replace testicular biopsy in the diagnostic work-up of these patients. Methods： Inhibin-B levels and testicular biopsy scores were related to the outcome of MESA in 43 patients with suspected primary OA. MESA was considered to be successful when epididymal sperm could be identified during the procedure. Results： Spermatozoa were present in the epididymal aspirate in 28 out of the 43 patients （65%）. lnhibin-B values were not significantly different in patients with successful or unsuccessful MESA. The modified Johnsen score, however, was significantly lower in patients with unsuccessful MESA （P = 0.003）. A rete testis obstruction or epididymal malfunctioning was found in 15% of patients with suspected primary OA, reflected by unsuccessful MESA despite normal inhibin-B levels and normal testicular histology. Conclusion： Inhibin-B cannot replace testicular biopsy as a diagnostic tool in the work-up of patients with suspected primary OA. Testicular biopsy is useful in identifying patients with spermatogenic arrest, who might have normal inhibin-B values.展开更多
The present study aimed to investigate the clinical value of serum anti-mullerian hormone（AMH） and inhibin B（INHB） in predicting the ovarian response of patients with polycystic ovary syndrome（PCOS）. A total of ...The present study aimed to investigate the clinical value of serum anti-mullerian hormone（AMH） and inhibin B（INHB） in predicting the ovarian response of patients with polycystic ovary syndrome（PCOS）. A total of 120 PCOS patients were enrolled and divided into three groups in terms of the ovarian response： a low-response group（n=36）, a normal-response group（n=44）, and a high-response group（n=40）. The serum AMH and INHB levels were measured by enzyme-linked immunosorbent assay（ELISA）. The follicle stimulating hormone（FSH）, luteinizing hormone（LH）, and estradiol（E2） levels were determined by chemiluminescence microparticle immunoassay. The correlation of the serum AMH and INHB levels with other indicators was analyzed. A receiver operating characteristic（ROC） curve was established to analyze the prediction of ovarian response by AMH and INHB. The results showed that there were significant differences in age, body mass index（BMI）, FSH, total gonadotropin-releasing hormone（Gn RH）, LH, E2, and antral follicle counts（AFCs） between the groups（P〈0.05）. The serum AMH and INHB levels were increased significantly with the ovarian response of PCOS patients increasing（P〈0.05）. The serum AMH and INHB levels were negatively correlated with the age, BMI, FSH level, Gn, and E2 levels（P〈0.05）. They were positively correlated with the LH levels and AFCs（P〈0.05）. ROC curve analysis of serum AMH and INHB in prediction of a low ovarian response showed that the area under the ROC curve（AUC） value of the serum AMH level was 0.817, with a cut-off value of 1.29 ng/m L. The sensitivity and specificity were 71.2% and 79.6%, respectively. The AUC value of serum INHB was 0.674, with a cut-off value of 38.65 ng/m L, and the sensitivity and specificity were 50.7% and 74.5%, respectively. ROC curve analysis showed when the serum AMH and INHB levels were used to predict a high ovarian response, the AUC value of the serum AMH level was 0.742, with a cut-off value of 2.84 ng/m L, and the sensitivity and specificity were 72.7% and 65.9%, respectively; the AUC value of the serum INHB level was 0.551 with a cut-off of 45.76 ng/m L, and the sensitivity and specificity were 76.3% and 40.2%, respectively. It was suggested the serum AMH and INHB levels have high clinical value in predicting the ovarian response of PCOS patients.展开更多
文摘Aim： To evaluate whether inhibin-B can predict the outcome of a microsurgical epidymal sperm aspiration （MESA） procedure in patients with suspected primary obstructive azoospermia （OA） and if inhibin-B can replace testicular biopsy in the diagnostic work-up of these patients. Methods： Inhibin-B levels and testicular biopsy scores were related to the outcome of MESA in 43 patients with suspected primary OA. MESA was considered to be successful when epididymal sperm could be identified during the procedure. Results： Spermatozoa were present in the epididymal aspirate in 28 out of the 43 patients （65%）. lnhibin-B values were not significantly different in patients with successful or unsuccessful MESA. The modified Johnsen score, however, was significantly lower in patients with unsuccessful MESA （P = 0.003）. A rete testis obstruction or epididymal malfunctioning was found in 15% of patients with suspected primary OA, reflected by unsuccessful MESA despite normal inhibin-B levels and normal testicular histology. Conclusion： Inhibin-B cannot replace testicular biopsy as a diagnostic tool in the work-up of patients with suspected primary OA. Testicular biopsy is useful in identifying patients with spermatogenic arrest, who might have normal inhibin-B values.
文摘The present study aimed to investigate the clinical value of serum anti-mullerian hormone（AMH） and inhibin B（INHB） in predicting the ovarian response of patients with polycystic ovary syndrome（PCOS）. A total of 120 PCOS patients were enrolled and divided into three groups in terms of the ovarian response： a low-response group（n=36）, a normal-response group（n=44）, and a high-response group（n=40）. The serum AMH and INHB levels were measured by enzyme-linked immunosorbent assay（ELISA）. The follicle stimulating hormone（FSH）, luteinizing hormone（LH）, and estradiol（E2） levels were determined by chemiluminescence microparticle immunoassay. The correlation of the serum AMH and INHB levels with other indicators was analyzed. A receiver operating characteristic（ROC） curve was established to analyze the prediction of ovarian response by AMH and INHB. The results showed that there were significant differences in age, body mass index（BMI）, FSH, total gonadotropin-releasing hormone（Gn RH）, LH, E2, and antral follicle counts（AFCs） between the groups（P〈0.05）. The serum AMH and INHB levels were increased significantly with the ovarian response of PCOS patients increasing（P〈0.05）. The serum AMH and INHB levels were negatively correlated with the age, BMI, FSH level, Gn, and E2 levels（P〈0.05）. They were positively correlated with the LH levels and AFCs（P〈0.05）. ROC curve analysis of serum AMH and INHB in prediction of a low ovarian response showed that the area under the ROC curve（AUC） value of the serum AMH level was 0.817, with a cut-off value of 1.29 ng/m L. The sensitivity and specificity were 71.2% and 79.6%, respectively. The AUC value of serum INHB was 0.674, with a cut-off value of 38.65 ng/m L, and the sensitivity and specificity were 50.7% and 74.5%, respectively. ROC curve analysis showed when the serum AMH and INHB levels were used to predict a high ovarian response, the AUC value of the serum AMH level was 0.742, with a cut-off value of 2.84 ng/m L, and the sensitivity and specificity were 72.7% and 65.9%, respectively; the AUC value of the serum INHB level was 0.551 with a cut-off of 45.76 ng/m L, and the sensitivity and specificity were 76.3% and 40.2%, respectively. It was suggested the serum AMH and INHB levels have high clinical value in predicting the ovarian response of PCOS patients.
