Estrogen receptor α promoter polymorphism: stronger estrogen action is coupled with lower sperm count
نویسندگان
چکیده
منابع مشابه
Estrogen receptor alpha promoter polymorphism: stronger estrogen action is coupled with lower sperm count.
BACKGROUND Although the importance of estrogens in male reproduction is indisputable, little attention has been paid to the role of estrogen receptor (ER) gene mutations in male infertility. Significant correlation between (TA)n repeat allelic variants and lumbar bone mineral density was previously observed in the promoter region of the ERalpha gene, indicating that allelic combinations with hi...
متن کاملpromoter hypermethylation of estrogen receptor alpha gene is correlated to estrogen receptor negativity in iranian patients with sporadic breast cancer
objective: breast cancer is the most common cancer in iranian women. breast tumors are classified based on the estrogen receptor alpha (erα) expression status into er negative and er positive tumors. er negative tumors tend to have worse prognosis and less likely to respond to endocrine therapy. aberrant methylation of gene promoter is one of the mechanisms for gene silencing in breast tumors. ...
متن کاملExtent of Vascular Remodeling Is Dependent on the Balance Between Estrogen Receptor α and G-Protein-Coupled Estrogen Receptor.
Estrogens are important regulators of cardiovascular function. Some of estrogen's cardiovascular effects are mediated by a G-protein-coupled receptor mechanism, namely, G-protein-coupled estrogen receptor (GPER). Estradiol-mediated regulation of vascular cell programmed cell death reflects the balance of the opposing actions of GPER versus estrogen receptor α (ERα). However, the significance of...
متن کاملAssociation of estrogen receptor 1 rs9340799 polymorphism with implantation failure in Iranian infertile women
Purpose: Estrogen as a crucial hormone during pregnancy acts by two types of receptors. Estrogen receptor alpha, expressed by estrogen receptor 1 (ESR1) gene, is more abundant and exists in all human reproductive systems. Association of ESR1 gene polymorphism has been shown in some reproductive fields such as spontaneous abortion, endometriosis-related infertility and in vitro fertili...
متن کاملBlockade of Estrogen Action Upregulates Estrogen Receptor-α mRNA in the Fetal Brain
BACKGROUND Fetal neuroendocrine maturation in late gestation is critical for maintenance of fetal homeostasis, growth, and readiness for birth. Sheep express estrogen receptors (ERs) in various brain regions. However, little is known about the regulation of ER-alpha and ER-beta in the ovine brain prenatally. OBJECTIVE The present study was designed to test the hypothesis that the expression o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Human Reproduction
سال: 2006
ISSN: 1460-2350,0268-1161
DOI: 10.1093/humrep/dei439