Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Effect of Oral Administration of Houttuynia Cordata Extract on Benign Prostatic Hyperplasia

전립선비대증의 어성초추출물에 의한 경구투여 효과

  • Song, Won-Yeong (Department of Food and Nutrition, International University of Korea) ;
  • Choi, Jeong-Hwa (Department of Food and Nutrition, International University of Korea)
  • 송원영 (한국국제대학교 식품영양학과) ;
  • 최정화 (한국국제대학교 식품영양학과)
  • Received : 2019.02.15
  • Accepted : 2019.06.14
  • Published : 2019.06.30
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Abstract

Benign prostatic hyperplasia (BPH) is the most common urogenital disorder in men, benign tumor and is a typical disease deteriorating the quality of old men's lives, and its prevalence increases with age. Though the molecular pathogenesis of BPH has not yet been clearly revealed, it is known that the variation and aging of the endocrine including sex hormone may cause BPH. Especially the hypertrophy of the prostate cell by the formation of the excessive dihydrotestosterone (DHT) is estimated to cause BPH. If testosterone exists excessively in blood, a lot of DHT is produced in prostate by $5{\alpha}-reductase$. Thus, in this study we tried to analyze haematological change and histopathological change by using the model rat with BPH caused by hypodermic injection of testosterone to prove the effect of Houttuynia cordata extracts on BPH. Rats were divided into four experimental groups: no treatment group (N), the testosterone injection and D.W treatment group (DO), the testosterone injection and Houttuynia cordata treatment group (HO) and testosterone injection and finasteride treatment group (FO). Prostate weight, volume and weight ratio in the HO and FO groups were significantly lower than the DO group. Testosterone and DHT levels in the HO group were significantly lower than the DO group. The HO and FO groups showed trophic symptoms and were lined by flattened epithelial cells, thus, the stromal proliferation is relatively low as compared to the DO group. These results suggest that Houttuynia cordata may control benign prostatic hyperplasia.

본 연구는 전립선비대증이 노화 및 남성호르몬 과다분비로 인해 유발된다는 가설을 바탕으로 순화기간을 마친 12주령이 된 수컷 쥐에 testosterone을 30일간 피하주사하여 노화 및 testosterone 분비 증가로 인한 전립선비대증 유발 모델 rat을 제작하였다. 실험군은 총 4군으로 각 군당 10마리씩 정상군(N 군), 음성대조군(DO 군), 어성초 추출물 투여군(HO 군) 및 양성물질 finasteride 투여군(FO 군)으로 나누어서 진행하였다. 고환절제술을 한 후 testosterone을 투여한 결과 N군에 비해 나머지 세 군, DO, HO 및 FO군 모두에서 체중이 유의적으로 감소하였다. 전립선의 부피는 N군에 비해서 DO군에서 유의적으로 증가하였으며, HO군과 FO군에서는 DO군에 비해 유의적으로 감소되는 경향을 나타내었다. 전립선의 무게 또한 HO군 및 FO군에서 DO군에 비해 유의적으로 감소되었다. 체중 당 전립선의 비율은 N군에 비해 DO군, HO군 및 FO군에서 유의적으로 증가하였으며, 특히 DO군에 비해 HO 및 FO군은 각각 유의적인 감소를 나타내었다. 혈중 testosterone 및 DHT의 농도는 N군에 비해 모든 군에서 유의적으로 증가되었으나, DO군에서 증가된 혈중 testosterone 및 DHT의 농도는 어성초 추출물 및 finasteride의 공급으로 유의적으로 감소되는 경향이었다. 어성초 추출물의 공급으로 인한 조직병리학적 변화양상을 관찰한 결과 어성초추출물 공급군에서는 DO군에 비해 상피세포, acinar gland, 관상피 세포, 세포핵, 분비선들의 변형 및 위축이 감소하여 정상적인 형태를 나타내고, 양성대조군으로 사용된 finasteride 처리군의 형상과 비슷한 양상을 나타내었다. 어성초 추출물에 대한 이러한 효과는 향후 분자생물학적으로 기전연구들이 더욱 필요하지만 본 결과로 미루어 어성초 추출물 내 함유된 다양한 페놀 및 플라보노이드와 같은 생리활성 성분들은 지금까지 알려져 있던 발모 및 여드름 개선뿐만 아니라 이와 유사한 기전을 가지고 있는 전립선비대증 개선에도 효과적으로 기여할 수 있을 것이라 기대된다.

Keywords

SMGHBM_2019_v29n6_705_f0001.png 이미지

Fig. 1. Testosterone levels of each experimental group.

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Fig. 2. Dihydrotestosterone (DHT) levels of each experimental group.

SMGHBM_2019_v29n6_705_f0003.png 이미지

Fig. 3. H&E stains of prostate tissue from the rats (×40).

Table 1. Body weight gains of each experimental group

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Table 2. Prostate volume, weight and prostate weight ratio of each experimental group

SMGHBM_2019_v29n6_705_t0002.png 이미지

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