Human placenta, decidua, and fetal membranes are the major sites of production and secretion of inhibin A and activin A in maternal serum, amniotic fluid, and umbilical cord blood. These tissues also express follistatin-related gene and betaglycan, the binding proteins of activin A and inhibin A, respectively, recently identified. They show a different expression throughout pregnancy, suggestin...

Biological activity of a synthetic peptide with inhibin-like activity under in vitro and in vivo conditions was compared with three highly potent synthetic lutropin-releasing hormone antagonists. Unlike the synthetic lutropin-releasing hormone antagonists, which effectively inhibited both lutropin and follitropin secretion from the pituitary, the inhibin-like peptide showed a preferential effec...

Introduction: Non-invasive methods that can predict sperm recovery in patients with non-obstructive azoospermia (NOA) arouse interest of clinicians. The aim of this study was to evaluate the predictive value of sperm retrieval in NOA. Materials and Methods: In the retrospective study, fine needle aspiration (FNA) was performed on 306 patients with NOA at the department of andrology, Wuhan Tongj...

The present study was undertaken to compare the changes in circulating levels of inhibin-B, prolactin, follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol-17beta, progesterone and testosterone during the different reproductive states of turkey hens. Blood samples were collected during different reproductive states, at laying, incubating and out of lay. Inhibin-B was measured...

OBJECTIVE The purpose of this study was to investigate the transport of inhibin A and to determine its effects on fetal vascular pressure at elevated levels in the human placenta using 125I-labeled synthetic glycoprotein. METHODS Synthetic inhibin A was prepared and was shown to be consistent with the natural form by high-pressure liquid chromatography (HPLC) and molecular weight determinatio...

BACKGROUND FSH hypersecretion occurs in mothers of dizygotic (DZ) twins. Twinning is inherited via both sexes and transmitted through the female. FSH hypersecretion may thus occur in male DZ twins. METHODS We assayed FSH and its counter-regulatory hormone, Inhibin B, in 108 adult male DZ and 100 monozygotic (MZ) twins (as controls) and compared our results to published norms. RESULTS Inhibi...

Adult granulosa cell tumors (AGCTs) have a heterogeneous morphology and an unpredictable behavior, which can lead to a misinterpreted diagnosis. The aim of our study was to assess the immunoexpression of estrogen receptor (ER) alpha, Ki67, calretinin, and inhibin A in AGCTs, in order to evaluate their value in diagnosis and prognosis of this type of tumor. Immunohistochemical stainings for thes...

565 Acta Endocrinologica (Buc), vol. IX, no. 4, p. 565-574, 2013 *Correspondence to: Diana Loreta Paun MD, “C.I. Parhon” National Institute of Endocrinology, Aviatorilor 34-36, Bucharest, 011863, Romania E-mail: [email protected] Abstract Aim. The goal was to study immunostaining with Inhibin alpha, MelanA and MNF 116 in tumors located in the adrenals (benign adrenocortical tumors and ...

Aims: Preterm labor (PTL) is one of the most important medical community problems and the main cause of infant morbidity and mortality after congenital anomalies. Several studies have shown a significant association between the abnormal levels of quadruple test with PTL. However, there is no general agreement on the value of quadruple tests for predicting complications among studies. This study...