歸脾湯이 Estradiol Valerate로 유도된 흰쥐의 다낭성 난소에 미치는 영향
Effects of Gwibi-Tang on the Estradiol Valerate-induced Polycystic Ovaries in Rats
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Abstract
Purpose: This study was designed to investigate the effects of Gwibi-Tang(GBT) on the polycystic ovary(PCO) induced by estradiol valerate(EV) in rats. Methods: PCO was induced by single intramuscular injection with EV(4㎎) in female rats. Normal group(n=8) were injected with sesame oil and orally administrated distilled water for eight weeks. PCO control group(n=8) were injected with EV and orally administrated distilled water for eight weeks. GBT treated group(n=8) were injected with EV and orally administrated GBT for eight weeks. Then we measured weight of body, ovaries, adrenal glands, and uterus of rats. The histopathology changes of ovaries were also evaluated. The expression of nerve growth factor(NGF) was analyzed in the central nervous system, adrenal glands and ovaries by immunohistochemistry. And also CRF expression in median eminance of Rats were analyzed. Results: 1. The weight(g) of rats in GBT treated group(275±14) was significantly increased(p＜0.01) compared with control group(253±8). 2. The weight(㎎) of ovaries in GBT treated group(75.8±16.7) was significantly increased(p＜0.001) compared with control group(37.4±6.7). 3. The number of mature follicles in GBT treated group(3.6±1.2) was significantly increased(p＜0.01) compared with control group(1.5±1.5). 4. The number of atretic follicles in GBT treated group(8.0±3.1) was significantly decreased(p＜0.01) compared with control group(18.6±6.0). 5. The number of cystic follicles in GBT treated group(0.5±0.5) was significantly increased(p＜0.01) compared with control group(2.3±1.3). 6. The number of corpora lutea in GBT treated group(6.1±3.9) was significantly increased(p＜0.01) compared with control group(1.6±2.3). 7. The expression of NGF-immunoreactive cells in the ovarian granulosa cells in GBT treated group was lesser observed than control group. Conclusion: From the above results, we concluded that Gwibi-Tang has inhibitory effect on the development of EV-induced polycystic ovary. And it's effect may be related with decreased NGF activities in the ovary.
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