Antral Follicle
Mostrando 25-36 de 36 artigos, teses e dissertações.
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25. DETECTION OF PROTEINS INVOLVED IN CHROMATIN REMODELING OF BOVINE EMBRYOS PRODUCED FROM OOCYTES DERIVED FROM SMALL AND LARGE ANTRAL FOLLICLES / DETECÇÃO DE PROTEÍNAS ENVOLVIDAS NO REMODELAMENTO DA CROMATINA DE EMBRIÕES BOVINOS PRODUZIDOS IN VITRO A PARTIR DE OÓCITOS ORIUNDOS DE FOLÍCULOS ANTRAIS PEQUENOS E GRANDES
It has been demonstrated that oocytes of several species acquire the capacity to complete meiotic maturation and support early embryonic development during the final stages of follicular growth. Aiming to investigate molecular differences between bovine embryos produced from oocytes derived from small (1 to 2-mm) and large (4 to 8-mm) follicles, two experime
Publicado em: 2006
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26. EXPRESSÃO DE RECEPTORES DE ANGIOTENSINA II NO DESENVOLVIMENTO FOLICULAR E PARTICIPAÇÃO NA REGULAÇÃO DA MATURAÇÃO DE OÓCITOS BOVINOS / Expression of angiotensine II receptors in follicle development and regulatory role in bovine oocyte maturation
This study was designed to investigate the role played by AngII receptors (AT1 and AT2) in follicle development and maturation of bovine oocytes. Receptor expression was assessed by the RT-PCR technique using preantral (secondary), 3-8, 6-7, and 12mm follicles. Secondary preantral follicles did not express AngII receptors. Antral follicles expressed AngII re
Publicado em: 2004
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27. Prediction of high ovarian response to controlled ovarian hyperstimulation: anti-Müllerian hormone versus small antral follicle count (2–6 mm)
Springer US.
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28. A novel phenotype related to partial loss of function mutations of the follicle stimulating hormone receptor.
A single natural loss of function mutation of the follicle stimulating hormone receptor (FSHR) has been described to date. Present in the Finnish population it markedly impairs receptor function, blocking follicle development at the primary stage and presenting as primary amenorrhea with atrophic ovaries. When Western European women with this phenotype were
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29. The prevalence of lymphoid follicles in Helicobacter pylori associated gastritis in patients with ulcers and non-ulcer dyspepsia.
AIMS--To determine the prevalence of lymphoid follicles in Helicobacter pylori positive and negative gastritis in antral and body type gastric mucosa in patients with non-ulcer dyspepsia (NUD), duodenal ulcer, or gastric ulcer; to correlate follicle presence with patient age; to evaluate the correlation between the prevalence of lymphoid follicles and active
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30. Follicle-Stimulating Hormone and Estradiol Interact to Stimulate Glutathione Synthesis in Rat Ovarian Follicles and Granulosa Cells1
Glutathione (GSH), the most abundant intracellular nonprotein thiol, is critical for many cellular functions. The rate-limiting step in GSH synthesis is catalyzed by glutamate cysteine ligase (GCL), a heterodimer composed of a catalytic (GCLC) and a modifier (GCLM) subunit. The tissue-specific regulation of GSH synthesis is poorly understood. We showed previ
Society for the Study of Reproduction.
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31. Impairing follicle-stimulating hormone (FSH) signaling in vivo: Targeted disruption of the FSH receptor leads to aberrant gametogenesis and hormonal imbalance
Pituitary gonadotropins follicle-stimulating hormone (FSH) and luteinizing hormone stimulate the gonads by regulating germ cell proliferation and differentiation. FSH receptors (FSH-Rs) are localized to testicular Sertoli cells and ovarian granulosa cells and are coupled to activation of the adenylyl cyclase and other signaling pathways. Activation of FSH-Rs
The National Academy of Sciences.
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32. Overriding follicle selection in controlled ovarian stimulation protocols: Quality vs quantity
Selection of the species-specific number of follicles that will develop and ovulate during the ovarian cycle can be overridden by increasing the levels of pituitary gonadotropin hormones, FSH and LH. During controlled ovarian stimulation (COS) in nonhuman primates for assisted reproductive technology (ART) protocols, the method of choice (but not the only me
BioMed Central.
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33. An essential role for C/EBPβ in female reproduction
A large number of intercellular signaling molecules have been identified that orchestrate female reproductive physiology. However, with the exception of steroid hormone receptors, little information exists about the transcriptional regulators that mediate cellular responses to these signals. The transcription factor C/EBPβ (CCAAT/enhancer-binding protein β
Cold Spring Harbor Laboratory Press.
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34. Targeted disruption of luteinizing hormone β-subunit leads to hypogonadism, defects in gonadal steroidogenesis, and infertility
Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) act on gonadal cells to promote steroidogenesis and gametogenesis. Clarifying the in vivo roles of LH and FSH permits a feasible approach to contraception involving selective blockade of gonadotropin action. One way to address these physiologically important problems is to generate mice with an
National Academy of Sciences.
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35. Excessive Ovarian Production of Nerve Growth Factor Facilitates Development of Cystic Ovarian Morphology in Mice and Is a Feature of Polycystic Ovarian Syndrome in Humans
Although ovarian nerve growth factor (NGF) facilitates follicular development and ovulation, an excess of the neurotrophin in the rodent ovary reduces ovulatory capacity and causes development of precystic follicles. Here we show that ovarian NGF production is enhanced in patients with polycystic ovarian syndrome (PCOS) and that transgenically driven overpro
The Endocrine Society.
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36. Microvascular endothelial cells of the corpus luteum
The cyclic nature of the capillary bed in the corpus luteum offers a unique experimental model to examine the life cycle of endothelial cells, involving discrete physiologically regulated steps of angiogenesis, blood vessel maturation and blood vessel regression. The granulosa cells and theca cells of the developing antral follicle and the steroidogenic cell
BioMed Central.