background: use of hormone replacement therapy (hrt) may increase the risk of adult-onset asthma in women. various in vitro studies have reported that estradiol stimulates human mast cell lines causing release of allergic mediators which was not observed in estrogen receptor-alpha (er-alpha) knockout mice. thus, estrogen might be a key element in occurrence of asthma. in the present study, we p...

a fibroadenoma was diagnosed in the mammary gland of a lamb by immunohistochemical method andmeasurement of oestradiol hormone. the tumor was characterized by an encapsulated firm mass with acreamy-white cut surface. histologically, it consisted of variably-sized sinus ducts, covered by a single ormultiple layers of proliferated epithelial cells, and embedded in a loose connective tissue. immun...

background: phytoestrogens, a group of plant-derived polyphenolic compounds have recently come into considerable attention due to the increasing information on their potential adverse effects in human health. some of phytoestrogens show estrogenic activity that may be carcinogenic for human. in the present study, we investigated the transcriptional effects of variety of phytoestrogens on the bo...

abstract   background: the iranian breast cancer patients are relatively younger than their western counterparts. evidence suggests that alterations in estrogen signaling pathways , including estrogen receptor-α (er- α ), occur during breast cancer development in caucasians. epidemiologic studies have revealed that age-incidence patterns of breast cancer in asians differ from those in caucasian...

alzheimer’s disease (ad) is a disorder with multiple pathophysiological causes, destructive outcomes, and no available definitive cure. pelargonidin (pel), an anthocyanin derivative, is an estrogen receptor agonist with little estrogen side effects. this study was designed to assess pel memory enhancing effects on the a rat amyloid beta 25-35 (aβ) intrahippocampal microinjections model of ad in...

Estrogen might play an important role in the pathogenesis of diabetes mellitus type 2. Estrogens inhibit diabetes via distinct mechanisms particularly by reducing both hyperglycemia and plasma insulin levels. Estrogen exerts its physiological effects mainly through estrogen receptors including α and β types. Estrogen receptors are found in many tissues that participate in the pathogenesis of ty...

estrogen (e2) has neuroprotective effects on blood-brain-barrier (bbb) after traumatic brain injury (tbi). in order to investigate the roles of estrogen receptors (ers) in these kind of effects, er-α antagonist (mpp) and, er-β antagonist (phtpp), or non-selective estrogen receptors antagonist (ici 182780) were administered as regulators of cns cytokines levels and neuroinflammation after tbi. m...

estrogen might play an important role in the pathogenesis of diabetes mellitus type 2. estrogens inhibit diabetes via distinct mechanisms particularly by reducing both hyperglycemia and plasma insulin levels. estrogen exerts its physiological effects mainly through estrogen receptors including α and β types. estrogen receptors are found in many tissues that participate in the pathogenesis of ty...

Both estrogen and hydrogen sulfide (H 2 S) inhibit the proliferation of vascular smooth muscle cells (SMCs) development atherosclerosis. In absence endogenous H S as occurred in CSE-knockout (KO) mouse, however, stimulates SMCs. The underlying mechanisms for this seemingly controversial effect are unclear. present study, we demonstrated that stimulatory on CSE-KO SMCs was suppressed by inhibito...

background and objectives: presence of steroid hormone receptors (estrogen and progesterone) in the tumor tissues of various organs correlates with response to therapy and prognosis. since their role in ovarian cancer is still controversial, in this study we investigated the expression and prognostic value of the estrogen receptor (er) and progesterone receptors (pr) in ovarian papillary serous...