Background: Some studies indicated that body mass index (BMI) is inversely proportional to serum testosterone concentrations in men. Purposes: This study aimed to analyze the effects of aging and obesity on total testosterone (TT), free testosterone (FT), bioavailable testosterone ...
Desde hace varias décadas, los análogos de la hormona liberadora de gonadotrofinas
(aGnRH) son el tratamiento de elección en la pubertad precoz central (PPC) en niñas y en
niños. Causan una inhibición del eje hipotálamo-hipófiso-gonadal, disminuyen la secreción de gonadotrofinas, estradiol y tes...
SUMMARY: In Saudi Arabia, it is widely believed that women with reproductive problems can use the extract of the sage plant as a tea drink. This study was conducted to investigate the effects of this herb on the fertility of female rats and embryo implantation. Forty-eight Wistar virgin female rats were ...
ABSTRACT Objective: Contrast-enhanced brain magnetic resonance imaging (MRI) is routinely performed in children with central precocious puberty (CPP). We evaluated the value of a dedicated sellar MRI protocol without contrast enhancement in girls with CPP. Subjects and methods: This study included 261 ...
Abstract Objective To investigate whether patients with a previous recombinant follicle stimulating hormone (rFSH)-stimulated cycle would have improved outcomes with rFSH + recombinant luteinizing hormone (rLH) stimulation in the following cycle. Methods For the present retrospective case-control stu...
Abstract The process of ovulation involves multiple and iterrelated genetic, biochemical, and morphological events: cessation of the proliferation of granulosa cells, resumption of oocyte meiosis, expansion of cumulus cell-oocyte complexes, digestion of the follicle wall, and extrusion of the metaphase-I...
Células del Cúmulo/fisiología,
Hormona Folículo Estimulante/genética,
Hormona Folículo Estimulante/fisiología,
Células de la Granulosa/fisiología,
Hormona Luteinizante/genética,
Hormona Luteinizante/fisiología,
Meiosis/genética,
Meiosis/fisiología,
Modelos Animales,
Oocitos/crecimiento & desarrollo,
Folículo Ovárico/crecimiento & desarrollo,
Ovulación/genética,
Ovulación/fisiología,
Transducción de Señal
The methanolic extract of Buchholzia coriacea seeds (MEBC) has been reported to induce male reproductive toxicity by decreasing sperm parameters and fertility index. To elucidate the possible mechanism(s), the effects of graded doses of MEBC on sex hormones and sperm profile were investigated in this stu...
Castro, Natália Ávila de;
Leonardi, Carlos Eduardo Porciuncula;
Singh, Jaswant;
Schneider, Augusto;
Gonçalves, Paulo Bayard;
Oliveira, Fernando Caetano;
D’Ávila, Camila Amaral;
Ferreira, Rogério;
Gasperin, Bernardo Garziera;
Moreira, Elizângela Mírian;
Andrade, Jéssica de Souza;
Pfeifer, Luiz Francisco Machado.
This study aimed to evaluate the role of prostaglandin F2α (PGF) on ovulation. In Experiment 1, cows were randomly allocated to two treatments to receive 150 μg of d-Cloprostenol (PGF Group, n = 12) or 2 mL of NaCl 0.9% (Control Group, n = 11) and CIDRs, were removed 4 days later. No cow ovulated in...
Abstract The aim of this study was to estimate allelic and genotypic frequencies of markers in the leptin (LEP), pituitary transcription factor (PIT-1) and luteinizing hormone receptor (LHR) genes and evaluate their effects on reproductive traits and milk yield of Holstein cattle. Data from 147 cows from...
ABSTRACT Objectives The determinants of an increased risk of an organic pathology underlying central precocious puberty (CPP) in girls remain contentious. The present study aimed to determine the clinical and hormonal findings that can be used to differentiate organic and idiopathic CPP in girls as a s...
