60.治療乳牛卵巢囊腫(cystic ovarian disease)投予那項藥劑是錯誤的?
(A)前列腺素(PGF2α )
(B)助孕酮(progesterone)
(C)泌乳素(prolactin)
(D)促性腺素釋放激素(GnRH)
(A)前列腺素(PGF2α )
(B)助孕酮(progesterone)
(C)泌乳素(prolactin)
(D)促性腺素釋放激素(GnRH)
統計: A(167), B(148), C(590), D(64), E(0) #855800
詳解 (共 4 筆)
濾泡囊腫、黃體囊腫=>都是卵巢囊腫
(A) 前列腺素(PGF2α )=>促進黃體囊腫溶解
(B)助孕酮(progesterone)=>高濃度孕酮 (Progesterone) 對LH潮湧有抑制作用,因此黃體產生的孕酮 (Progesterone ) 濃度很可能參與了濾泡囊腫症的發病機理。下視丘雌二醇受體的敏感性必須通過孕酮 (Progesterone ) 來恢復。或者,可用陰道內孕激素釋放插入物治療濾泡性囊腫(就是CIDR拉)。外部孕酮濃度升高導致搏動性LH分泌降低,下丘腦-垂體軸回應雌二醇而產生LH激增的能力得以恢復。
Noakes D, Parkinson T, England G. Veterinary Reproduction & Obstetrics. 10th ed. Elsevier 22:375-381.
Gümen A, Sartori R, Costa FM, Wiltbank MC. A GnRH/LH surge without subsequent progesterone exposure can induce development of follicular cysts. J Dairy Sci 2002 Jan;85 (1) :43-50.
Correa-Calderón A, Pérez-Velázquez R, Avendaño-Reyes L, Macias-Cruz U, Diaz-Molina R, Rivera-Acuña F. Effect of time of progesterone supplementation on serum progesterone and the conception rate of cooled Holstein heifers during the summer. Anim Sci J 2016 Jun;87 (6) :745-749.
Todoroki J, Kaneko H. Formation of follicular cysts in cattle and therapeutic effects of controlled internal drug release. J Reprod Dev. 2006 Feb;52 (1) :1-11.
(C)泌乳素(prolactin)=????
(D)促性腺素釋放激素(GnRH)=>外源性高濃度GnRH=>LH SURGE=>濾泡排卵,但是臨床上通常打GnRH都沒用...推測可能是濾泡上LH敏感度不佳,即使你打在多GnRH不會破就是不破,所以有人治療濾泡囊腫就是放CIDR(在陰道釋放Progesterone裝置)
to 3F
你的意思是說progesterone抑制了LH surge,然後我們再給她progesterone反而可以恢復LH surge的能力?