Endometrial Secretion
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Avaliação do perfil protéico da secreção endometrial da égua. / Protein profile from the endometrial secretion of the mare
O objetivo geral deste trabalho foi caracterizar o perfil protéico da secreção uterina pura, através da eletroforese bi-dimensional, de éguas em diferentes fases do ciclo estral, com diferentes graus de alterações inflamatórias e degenerativas, e com diferente capacidade de resposta à cobertura. Para tanto se realizaram cinco experimentos. O primeir
Publicado em: 2007
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2. Estudo imunocitoquimico das catepsinas D e B em celulas trofoblasticas gigantes de camundongos
The trophoblastic giant cells (TGC) differentiate from trophectoderm sheets or from the ectoplacental cone of mouse embryos and are committed to blastocyst implantation and placentation. It has attributed a high invasive capability and phagocytosis to the TGC which degenerate and remove the maternal tissues. However, the exact mechanism controlling their inv
Publicado em: 1997
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3. Suppression of matrix metalloproteinases inhibits establishment of ectopic lesions by human endometrium in nude mice.
Matrix metalloproteinases of the stromelysin family are expressed in the human endometrium as a consequence of cellular events during the menstrual cycle that require extracellular matrix remodeling. We have recently documented the presence of these enzymes in lesions of endometriosis, a benign disease that presents as persistent ectopic sites of endometrial
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4. Stimulation of anion secretion by beta-adrenoceptors in the mouse endometrial epithelium.
1. Regulation of anion secretion by adrenoceptors in primary culture of mouse endometrial epithelium was investigated using the short circuit current (ISC) technique. 2. Adrenaline stimulated a sustained increase in the ISC in a concentration-dependent manner. The adrenaline-induced ISC could be inhibited by pretreatment with diphenylamine 2,2'-dicarboxylic
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5. Failure of endometrial cup development in the donkey-in-horse model of equine abortion.
The mature preinvasive chorionic girdles of horse, mule, donkey and extraspecies donkey-in-horse conceptuses, and the very young endometrial cups on d 37 of gestation in mares carrying horse, mule and transferred donkey-in-horse conceptuses, were compared histologically and ultrastructurally to determine possible mechanisms underlying failure of endometrial
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6. Human endometrial matrix metalloproteinase-2, a putative menstrual proteinase. Hormonal regulation in cultured stromal cells and messenger RNA expression during the menstrual cycle.
Proteinases are likely effectors of endometrial menstrual breakdown. We have investigated proteinase production by human endometrial stromal cells subjected in vitro to progesterone (P) withdrawal, the physiologic stimulus for menstruation. Culture media of cells exposed to estradiol, P, or estradiol plus P had low levels of proteolytic activity similar to c
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7. Up-Regulation of Cyclooxygenase-2 Expression and Prostaglandin E2 Production in Human Endometriotic Cells by Macrophage Migration Inhibitory Factor: Involvement of Novel Kinase Signaling Pathways
Cyclooxygenase (COX) is the rate-limiting enzyme in the metabolic conversion of arachidonic acid to prostaglandins (PGs), including prostaglandin E2 (PGE2), a major mediator of inflammation and angiogenesis. Herein, we report that macrophage migration inhibitory factor (MIF), a potent proinflammatory and growth-promoting factor found at elevated concentratio
The Endocrine Society.
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8. Conceptus signals for establishment and maintenance of pregnancy
Establishment and maintenance of pregnancy results from signaling by the conceptus (embryo/fetus and associated extraembryonic membranes) and requires progesterone produced by the corpus luteum (CL). In most mammals, hormones produced by the trophoblast maintain progesterone production by acting directly or indirectly to maintain the CL. In domestic animals
BioMed Central.
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9. Synthetic progestogen-oestrogen therapy and uterine changes
Continuous therapy with synthetic progestogen-oestrogen produces marked atrophy of endometrial glands and massive pseudodecidual stromal transformation. Cyclical therapy produces initially a `frustrated secretory response' with precocious attempts at secretion in poorly developed glands. Pseudodecidua appears about the 20th day. With later cycles there is pr
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10. Localization of Chlamydia trachomatis Heat Shock Proteins 60 and 70 during Infection of a Human Endometrial Epithelial Cell Line In Vitro
Unlike chlamydial lipopolysaccharide, which is released from the developing inclusion to the surface of infected genital epithelial cells, both Chlamydia trachomatis heat shock protein (hsp) 60 and 70 antigens remained confined within the inclusion during the course of the chlamydial developmental cycle. Exposure of the infected cells to penicillin to induce
American Society for Microbiology.
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11. Progesterone regulates the activity of collagenase and related gelatinases A and B in human endometrial explants.
Explants of human endometrium were cultured to study the release of matrix metalloproteinases (MMPs). Analysis of conditioned media by zymography revealed latent and active forms of collagenase (MMP-1, EC 3.4.24.7), 72-kDa gelatinase A (MMP-2, EC 3.4.24.24), and 92-kDa gelatinase B (MMP-9, EC 3.4.24.35). These proteinases were identified by their M(r), their
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12. Scanning electron microscopy of the endometrium during the secretory phase.
Scanning electron microscopy was used to study the surface morphology of the rabbit endometrium during the secretory phase of the oestrous cycle. The free surfaces of ciliated and of inactive active secretory cells are described. Changes in secretory cell surface morphology resulting from accumulation and secretion of material involve the apparent retraction