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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Effects of Different Sources of Dietary n-3 Fatty Acids on Immune Response and Eicosanoids Production

급원이 다른 n-3 지방산이 흰쥐에서 면역반응과 Prostaglandin $E_2$ 및 Leukotriene $B_4$ 생성에 미치는 영향

  • Published : 1997.08.01
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Abstract

This study was planned to compare the effects of source of dietary n-3 fatty acids, i.e., tuna oil and perilla oil, on mitogenesis and production of prostaglandin E$_2$ and leukotriene B$_4$ in rats. Weaning male Sprague-Dawley rats were fed 3 different experimental diets for 4 weeks(Control: beef tallow 50% + sesame oil 50%, FO : beef tallow 50% + sesame oil 25% + tuna oil(27% docosahexaenoic acid) 25%, PO : beef tallow 50% + sesame oil 25% + perilla oil 25%). Food intakes were higher in FO group than in other groups, but body weight gains, food efficiency rates and weights of spleen were not different among groups. Proliferation of splenocyte to PWM(pokeweedmitogen) was higher in FO and PO group than control group. But there was no difference between FO and PO group. Response to ConA was not different among three groups. Serum PGE$_2$ levels were higher in control group than other groups. Serum LKB$_4$ levels were not different among groups. Therefore, it seemed that n-3 fatty acids increased the immune response by means of decreasing the PGE$_2$ production.

본 연구는 급원이 다른 n-3 지방산 섭취가 휜쥐에서 면역반응과 PGE$_2$ 및 LTB$_4$ 생성에 미치는 영항을 알아보기 위해 시도되었다. 실험동물은 생후 4주 정도의 Sp-rague-Dawley종 수컷을 사용하였으며 실험식 이를 4 주간 섭취 시 킨 후 희생하여 면역 실험을 행하였다. 실험 군간의 식이 섭취량, 체중 증가량, 식이 효율, 비장무게는 유의적인 차이가 없었다. 비장세포의 ConA와 PWM에 대한 증식능력 실험 결과는 ConA의 경우, 대조군과 FO군의 증식비율은 비슷하였고 PO군이 약간 높게 나타났으나 유의적인 차이는 없었다. PW의 경우는 대조군 보다 FO군과 PO군이 높게 나타나 n-3 지방산을 섭취한 군들이 증식 능력이 높은 유의적인 차이를 보였다. 그리고 PGE$_2$의 농도는 대조군이 FO군과 PO군에 비해 유의적으로 높았으며, LTB$_4$의 농도는 실험군간의 차이가 나타나지 않았다. 그러므로 비장세포의 PWM에 대한 증식능력이 n-3 지방산을 섭취한 경우에 대조군보다 높았던 것이 PGE$_2$ 농도와 관련이 있는 것으로 보이며 들기름과 어유는 같은 정도의 효과를 가지는 것으로 나타났다.

Keywords

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