In vivo Physiological Activity of Mentha viridis L. and Mentha piperita L.

박하의 in vivo 생리활성

  • Published : 2005.12.30

Abstract

Alcohol metabolizing and antioxidant activity of Mentha species were investigated in rat liver. Fifty six Sprague Dawley rats were randomly divided into seven groups such as normal (ethanol excluded), negative control (40% ethanol (10 g/kg of body weight/day) fed), positive control (1 g Silymarin/kg of body weight/day with ethanol fed), two Mentha viridis extracts (0.2 g & 1 g M. viridis methanol ext./kg of body weight/day with ethanol fed) and two M piperita extracts (0.2 g & 1 g M. piperita methanol ext./kg of body weight/day with ethanol fed) groups. After 2 weeks, rats were sacrificed under ether. The activities of alcohol dehydrogenase (ADH), aldehyde dehydrogenase (ALDH), catalase (CAT), manganese superoxide dismutase (Mn-SOD), glutathione peroxidase (GAH-px) and the content ofthiobarbituric acid reactive substance (TBARS) in the rat livers and the activity of glutamate pyruvate transferase (GPT) in serum were evaluated. From the analyses, 1 g M. viridis and 0.2 g M. piperita administrated groups showed higher ADH and ALDH activity than the other groups. Groups fed with 0.2 g and 1 g M. viridis ext. and 0.2 g M. piperita ext. showed higher CAT activity than the other groups. All the Mentha extract fed groups exhibited more effective in recovering Mn-SOD, GSH-px and GPT acitivities to a similar degree of normal group. TBARS contents of two M. viridis ext. fed group and 0.2 g M. piperita ext. fed group were higher than those of the other groups. M. viridis extract fed groups showed more effective in CAT and Mn-SOD activities than M. piperita extract groups at p < 0.05. Finally, it is concluded that both Mentha species have alcohol metabolizing and antioxidant activity and M viridis is more effective than M. piperita.

M. viridis와 M. piperita의 흰쥐에서의 생리활성을 확인하기 위해 수행한 실험 결과는 다음과 같다. 1. ADH 활성은 M. viridis ext. 1g/kg body weight of rat/day 투여군 (이하 M. viridis ex. 1 g 투여군)과 M. piperita ext. 0.2g/kg body weight of rat/day 투여군 (이하 M. piperita ext. 0.2g 투여군)이 음성대조군에 비해 각각 147% 및 144% 증가하여 양성대조물질인 Silymarin 투여군 (95%)보다 매우 효과적으로 알콜의 빠른 분해에 기여하는 것으로 확인되었다. 2. ALDH활성은 M. viridis ext. 1g 투여군과 M. piperita ext. 0.2g 투여군이 음성대조군에 비해 각각 154%, 158%의 활성증가를 나타냈으며 이는 Silymarin 투여군 (153%)보다 높은 활성으로 2종의 박하가 모두 효과적으로 알콜을 분해할 것으로 생각되었다. 3. CAT 활성은 M. viridis ext. 투여군이 M. piperita ext. 투여군보다 유의적으로 높았으며 특히, M. viridis ext. 투여군은 정상군이나 음성대조군 및 Silymarin 투여군보다도 활성이 높아 M. viridis ext. 투여군이 CAT에 의한 알콜분해에 있어서 M. piperita ext. 투여군보다 우수한 것으로 확인되었다. 4. Mn-SOD 활성은 M. viridis ext. 0.2g 및 1g 투여군은 음성대조군에 비해 각각 69% 및 75%를, M. piperita ext. 0.2g 및 1g 투여군은 각각 94% 및 86%를 나타내어 M. viridis ext. 투여군이 M. piperita ext. 투여군보다도 알콜투여에 의한 산화적 스트레스를 효과적으로 방어하는 것을 알 수 있었으며 특히, M. viridis ext. 투여군은 SiIymarin 투여군(84%)보다도 MN-SOD의 활성 회복에 효과적이었다. 5. GSH-px의 활성은 음성대조군에 비해 M. viridis ext. 0.2g 및 1g 투여군이 각각 81% 및 88%를, M. piperia ext. 0.2g 및 1g 투여군이 88% 및 67%를 나타내 알콜에 의해 유도된 GSH-px의 활성증가를 2종의 박하 모두 효과적으로 회복시켜주었다. 6. 혈청 GPT의 활성은 음성대조군에서 정상군에 비해 유의적으로 증가 (126%)하였으나 M. viridis와 M. piperita 투여군은 음성대조군이 나타낸 활성에 대해 $69%{\sim}72%$의 활성을 나타내 우수한 GPT활성 회복력을 가졌으며 이는 Silymarin(93%) 보다도 우수하였다. 2종의 박하 추출물 투여군들 사이에는 혈청 GPT 활성에 대한 유의적인 차이가 나타나지 않았다. 7.과산화물질 (TBARS)의 함량은 정상군에 비해 음성대조군에서 약간의 함량 증가가 관찰되었으나 유의적인 수준은 아니었으며 대부분의 박하 추출물 투여군과 Silymarin 투여군에서 과산화지질이 비슷한 수준으로 증가하여 박하는 알콜에 의한 과간화지질생성에 대한 저해효과가 낮은 것으로 확인되었다. 8. 상대간장중량은 각 실험군별로 상대간장중량에서의 차이는 다소 있었으나 유의성은 없었다.

Keywords

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