Monday, December 23, 2013

Bee Venom Restores Hormonal Imbalance

Interestingly enough, this effect was observed with women undergoing bee venom therapy (BVT) for other maladies, such as Multiple Sclerosis. While receiving BVT, they became pregnant, which they had found to be impossible prior to BVT sessions. It's good to see that even side effects of honey bees have a positive touch ...

Effect of bee venom on IL-6, COX-2 and VEGF levels in polycystic ovarian syndrome induced in Wistar rats by estradiol valerate

Background:
Polycystic ovarian syndrome (PCOS) is a low-grade inflammatory disease characterized by hyperandrogenemia, hirsutism, chronic anovulation and vascular disorder. Interleukin-6 (IL-6), cyclooxygenase-2 (COX-2) and vascular endothelial growth factor (VEGF) are triggered by inflammatory stimuli and lead to angiogenesis and pathogenesis of the ovary. Honeybee venom (HBV) contains an array of biologically active components possessing various pharmaceutical properties. This study was designed to assess the possibility of HBV application as an anti-inflammatory therapeutic agent to suppress levels of the main inflammatory mediators IL-6, COX-2 and VEGF.
To induce PCOS, 1 mg of estradiol valerate (EV) per 100 g of body weight was subcutaneously (SC) injected into eight-week-old rats. After 60 days, 0.5 mg/kg of HBV was administered Intraperitoneal (IP) for 14 consecutive days, and the results of PCOS treatment were investigated. Rats were then anesthetized with CO2, and the ovaries were surgically removed. Serum IL-6 was detected by the ELISA kit. Immunoexpression of COX-2 and VEGF were examined in three groups: EV-induced PCOS, HBV-treated PCOS and control animals.

Results:
Thickness of theca layer, number and diameter of cysts and levels of IL-6 significantly decreased in HBV group relative to PCOS group. The immunohistochemical analysis showed an increase in COX-2 and VEGF expression in PCOS group whereas HBV-treated rats presented weak and irregular immunostaining.

Conclusions:
Based on the results presented in this study, we can conclude that anti-inflammatory effects of HBV can restore metabolic and reproductive features of PCOS. Decreased levels of IL-6, COX-2, VEGF and serum androgens, and increased number of corpora lutea are suggestive of therapeutic effects of HBV on PCOS. We have established that this effect of HBV is mediated by suppression of inflammatory and angiogenic factors.


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