Early Luteolysis
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Luteólise antecipada em protocolo de inseminação artificial a tempo fixo com progesterona em vacas nos pós-parto
O objetivo do trabalho foi verificar o efeito da antecipação de um luteolítico prévio a retirada do dispositivo intravaginal de progesterona (P4) sobre a taxa de prenhez na inseminação artificial em tempo fixo (IATF) de vacas com cria ao pé em comparação com protocolos de IATF tradicionais que utilizam o luteolítico na ocasião da retirada de P4. T
Publicado em: 2010
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2. REGULATION OF STEROID RECEPTORS AND FOLLICULAR DYNAMICS IN HORMONAL INDUCTION SYSTEM POSTPARTUM BEEF COWS / REGULAÇÃO DE RECEPTORES ESTERÓIDES E DINÂMICA FOLICULAR EM UM SISTEMA DE INDUÇÃO HORMONAL PÓSPARTO EM VACAS DE CORTE
The objective of the present study was to determine the action of gestagens and estradiol benzoate (EB) on the mechanism of premature regression of the first corpus luteum (CL) after parturition, and to develop an efficient artificial insemination system for suckling beef cows. The effect of pre-exposure to gestagens and EB on the expression of the alpha (ER
Publicado em: 2005
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3. Prevention of pregnancy in the dog with a combination of prostaglandin F2α and bromocriptine
Fifteen mated bitches were given prostaglandin F2α (PGF2α) [250 μg/kg body weight] and bromocriptine (10 μg/kg BW) twice daily from days 6 to 10 of diestrus. Progesterone concentrations declined during treatment. None of the bitches whelped. Daily treatment with PGF2α and bromocriptine for 5 d appears to induce luteolysis and prevent early pregnancy.
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4. Regulation of intraluteal production of prostaglandins
There is clear evidence for intraluteal production of prostaglandins (PGs) in numerous species and under a variety of experimental conditions. In general, secretion of PGs appears to be elevated in the early corpus luteum (CL) and during the period of luteolysis. Regulation of intraluteal PG production is regulated by a variety of factors. An autoamplificati
BioMed Central.
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5. Signaling mechanisms in tumor necrosis factor alpha-induced death of microvascular endothelial cells of the corpus luteum
The microvasculature of the corpus luteum (CL), which comprises greater than 50% of the total number of cells in the CL, is thought to be the first structure to undergo degeneration via apoptosis during luteolysis. These studies compared the apoptotic potential of various cytokines (tumor necrosis factor α, TNFα; interferon gamma, IFNγ; soluble Fas ligand
BioMed Central.