scholarly journals Effect of bromocriptine on the severity of ovarian hyperstimulation syndrome and outcome in high responders undergoing assisted reproduction

2010 ◽  
Vol 3 (2) ◽  
pp. 85 ◽  
Author(s):  
Vinita Sherwal ◽  
Sonia Malik ◽  
Vandana Bhatia
Keyword(s):  
Assisted Reproduction ◽  
Ovarian Hyperstimulation Syndrome ◽  
Ovarian Hyperstimulation ◽  
High Responders

scholarly journals Estrogen-Induced Abnormally High Cystic Fibrosis Transmembrane Conductance Regulator Expression Results in Ovarian Hyperstimulation Syndrome

2005 ◽  
Vol 19 (12) ◽  
pp. 3038-3044 ◽  
Author(s):  
Louis Chukwuemeka Ajonuma ◽  
Lai Ling Tsang ◽  
Gui Hong Zhang ◽  
Connie Hau Yan Wong ◽  
Miu Ching Lau ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
In Vitro Fertilization ◽  
Assisted Reproduction ◽  
Ovarian Hyperstimulation Syndrome ◽  
Ovarian Hyperstimulation ◽  
Transmembrane Conductance Regulator ◽  
Transmembrane Conductance ◽  
Vitro Fertilization ◽  
Cystic Fibrosis Transmembrane

Abstract Ovarian hyperstimulation syndrome (OHSS) remains one of the most life-threatening and potentially fatal complications of assisted reproduction treatments, arising from excessive stimulation of the ovaries by exogenous gonadotropins administrated during in vitro fertilization procedures, which is characterized by massive fluid shift and accumulation in the peritoneal cavity and other organs, including the lungs and the reproductive tract. The pathogenesis of OHSS remains obscure, and no definitive treatments are currently available. Using RT-PCR, Western blot, and electrophysiological techniques we show that cystic fibrosis transmembrane conductance regulator (CFTR), a cAMP-activated chloride channel expressed in many epithelia, is involved in the pathogenesis of OHSS. Upon ovarian hyperstimulation, rats develop OHSS symptoms, with up-regulated CFTR expression and enhanced CFTR channel activity, which can also be mimicked by administration of estrogen, but not progesterone, alone in ovariectomized rats. Administration of progesterone that suppresses CFTR expression or antiserum against CFTR to OHSS animals results in alleviation of the symptoms. Furthermore, ovarian hyperstimulation does not induce detectable OHSS symptoms in CFTR mutant mice. These findings confirm a critical role of CFTR in the pathogenesis of OHSS and may provide grounds for better assisted reproduction treatment strategy to reduce the risk of OHSS and improve in vitro fertilization outcome.

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