한국식품영양과학회지 (Journal of the Korean Society of Food Science and Nutrition)

  • 제32권7호
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  • Pages.1114-1119
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  • 2003
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  • 1226-3311(pISSN)
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  • 2288-5978(eISSN)
한국식품영양과학회 (The Korean Society of Food Science and Nutrition)
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돌나물이 난소를 절제한 흰쥐 결합조직 중의 Collagen 함량 변화에 미치는 영향

The Effects of Sedum sarmentosum Bunge on Collagen Content of Connective Tissues in Ovariectomized Rats

  • 김미향 (신라대학교 식품영양학과 및 마린바이오 기능성소재산업화지원센터)
  • 발행 : 2003.10.01
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초록

폐경을 앞둔 여성에게는 폐경을 전후하여 지속되는 골 손실 가속화 등의 문제점을 가지고 있다. 그러므로 본 연구에서는 인위적 폐경을 유발시킬 수 있는 난소 절제 쥐에서의 골 손실의 유무를 결합조직 중의 collagen함량 변화를 통하여 그 효과를 검토하였다. 난소 절제 후 결합조직 중의 Collagen 함량은 난소를 절제하지 않은 Sham군에 비해 낮았으나 돌나물 추출물 투여에 의해 투여하지 않은 군보다 전체적으로 높게 나타났다. 난소 절제시 나타나는 결합조직 중 collagen 함량 저하에 대하여 돌나물 추출물의 작용 가능성이 밝혀졌으므로, 돌나물을 분획하여 그 효능을 검증하였다. 그 결과 생화학적 골 대사 지표인 혈 중 ALP 활성은 난소 절제로 (OVX-control)로 인하여 증가하는 반면, 난소 절제 후 돌나물 분획 투여 (OVX-EE, OVX-EA)로 혈 중 ALP 활성은 감소하는 경향을 보여 골 흡수를 저하시킬 수 있는 가능성을 나타내었다. 한편 난소 절제 후 돌나물 분획물 투여에 의해 폐 조직과 골$.$연골 조직에서 collagen 함량이 증가하는 경향을 보였고, 그 중 연골 조직에서는 collagen 함량의 저하가 정상적으로 회복되었다. 한편 피부 조직에서도 난소 절제 후 돌나물 분획물 투여군 모두에서 collagen 합성량이 유의적으로 증가하였다. 돌나물 추출물과 분획물이 에스트로겐 감소로 인한 Collagen 합성저하를 회복시킨 본 실험 결과로 미루어 보아 돌나물 중의 phytoestrogen이 에스트로겐 유사효과를 나타냄을 알 수 있었고, 외인성 에스트로겐 투여로 인한 부작용을 줄여 줄 수 있을 것으로 기대된다. 이상과 같이 폐경기 여성에게 돌나물의 섭취는 폐경으로 인한 장애를 감소시키기 위하여 에스트로겐의 장기간 복용에 의한 부작용을 돌나물 중의 phytoestrogen이 estrogen 대체 작용을 함으로써 그 부작용을 감소시켜 줄 것으로 사료되며, 이들의 구조 및 기전에 대해서는 앞으로 연구가 더 필요한 것으로 생각된다.

The aim of this study was to evaluate the effects of Sedum sarmentosum Bunge (SS) on the collagen content of the connective tissues in ovariectomized rats. From day 2 until day 37 after the ovariectomy, Sprague-Dawley female rats were randomly assigned to the following groups: sham-operated rats (Sham), ovariectomized control rats (OVX-control), ovariectomized rats supplemented with SS at 50 mg/kg BW/day (OVX-SS50), 100 mg/kg bw/day (OVX-SS100) and 200 mg/kg bw/day (OVX-SS200), and an ethyl ether fraction of SS at 10 mg/kg bw/day (OVX-EE) and an ethyl acetate fraction of SS at 10 mg/kg bw/day (OVX-EA). The SS ethanol extracts and SS fractions were orally administrated 1 mL per day. The OVX rats were significantly heavier than the sham-operated rats at all time points, but supplementation with the SS extracts tended to gain weight less than OVX-control. Supplementation with the SS extracts prevented a decrease in the collagen level in bone and cartilage tissues. These results are consistent with the conclusions based on the estrogenic activities of SS. Therefore, it may be used to possibly improve the quality of life in menopausal women.

키워드

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