ObjectiveTo characterize and evaluate the variation in serum concentrations of oocyte-secreted growth differentiation factor 9 (GDF9) bone morphogenetic protein 15 (BMP15) throughout menstrual cycle women from young to advanced reproductive ages.DesignCross-sectional, observational, exploratory study.SettingMulticenter university-based clinical practices laboratories.Patient(s)Serum was collect...

Background: Oocyte in vitro maturation success rate is still low in compareision to oocyte in vivo maturation. Thus prediction and improvement of oocyte competency are two critical issues in assisted reproductive technology. New insights into oocyte-cumulus cell regulatory loop may assist our optimization of in vitro maturation technique. Maturation and developmental competency of cumulus oocyt...

The growth differentiation factor 9 (GDF9) gene plays a vital role in the and maturation of ovarian follicles laying hens. However, its messenger ribonucleic acid (mRNA) expression levels preovulatory indigenous chickens remain poorly understood. study aimed to identify association between egg weight quality traits, morphology, mRNA GDF9 pre-ovulatory South African Potchefstroom Koekoek chicken...

STUDY QUESTION Can high-resolution array comparative genomic hybridization (CGH) analysis of DNA samples from women with primary ovarian insufficiency (POI) improve the diagnosis of the condition and identify novel candidate genes for POI? SUMMARY ANSWER A mutation affecting the regulatory region of growth differentiation factor 9 (GDF9) was identified for the first time together with several...

Objetivo. Determinar la influencia de aplicación gonadotropina coriónica equina (eCG) y presencia del exón 2 gen GDF9 en variables reproductivas ovejas raza Katahdin época transición. Materiales métodos. Se utilizaron 63 con edad peso promedio 2.83±0.89 años 45.32±5.44 kg, respectivamente. usó un arreglo factorial 2x2 bajo diseño completamente al azar, donde los factores niveles fueron: ausenci...

. Litter size is one of the crucial factors in livestock production and high economic value, which affected by ovulation rate, hormones, growth factors. Growth play a multifaceted role reproductive physiology. This review aims to investigate association bone morphogenetic protein 15 (BMP15) differentiation factor 9 (GDF9) with litter livestock. The transforming β (TGF- β) superfamily includes m...