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 Pine Needle Butanol Fraction on Membrane Fluidity and Oxidative Stress in Liver Membranes of Rats

간장 세포막의 유동성과 산화적 스트레스에 미치는 솔잎(Pine Needle) 부탄올획분의 영향

  • Published : 2003.10.01
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Abstract

This study was designed to investigate the effects of butanol (BuOH) fraction of pine (Pinus densiflora Sieb et Zucc) needle extract on membrane fluidity (MF), basal and induced oxygen radicals (BOR and IOR), lipid peroxide (LPO) and oxidized protein (OP) as an oxidative stress, and lipofuscin (LF) in liver membranes of Sprague-Dawley male rats. The rats were fed basic diets (control group) and experimental diets (BuOH-25, BuOH-50 and BuOH-100) prepared with 25, 50 and 100 mg added to basic diet for 45 days. MFs were significantly increased (about 16∼22%) in mitochondria of BuOH-50 and BuOH-100 groups compared with control group (p<0.01∼0.001) BOR and IOR formations in mitochondria were significantly decreased (11∼17% and 11∼28%, respectively) in these three BuOH groups (p<0.05∼0.001), while BOR and IOR formations in microsomes were significantly decreased (11∼24%) in BuOH-50 and BuOH-100 groups, and (15∼24%) in these three BuOH groups compared with control group (p<0.05∼0.001; p<0.01-0.001). LPO levels were significantly decreased (9% and 9∼13%, respectively) in mitochondria of BuOH-100 and microsomes of BuOH-50 and BuOH-100 groups (p<0.05∼0.01), whereas OP levels were significantly decreased (10∼12%) in mitochondria of BuOH-50 and BuOH-100 groups compared with control group (p<0.05). LF formations were significantly decreased (8∼9%) in BuOH-50 and BuOH-100 groups (p<0.05). These results suggest that butanol fraction of pine needle extract may playa effective role in an attenuating an oxidative stress and increasing a membrane fluidity.

솔잎 추출물의 BuOH획분을 하루 25, 50, 100 mg/kg BW로써 SD계 흰쥐에 45일동안 투여하여 간장 세포막의 유동성(MF), 기초 및 유도산소라디칼(BOR 및 IOR), 산화적 스트레스로서 과산화지질(LPO) 및 산화단백질(OP), 리포푸신(LF)의 축적에 미치는 영향을 평가하였다. MF은 간장의 mitochondria에서 BuOH-50 및 BuOH-100 투여군에서 16∼22%의 유의적인MF의 증가효과가 인정되었지만(p<0.01∼0.001), 간장 microsomes에서는 BuOH획분의 투여에 의한 MF의 유의적인 증가효과를 기대할 수 없었다. BOR 및 IOR의 생성은 간장의 mitochondria에서 BuOH-25, BuOH-50, BUOH-100 투여군은 각각 11∼27% 및 11∼28%의 BOR 및 IOR의 생성 억제효과가 인정되었고(p<0.05∼0.001), microsomes에서 BuOH-50, BuOH-100 투여군 및 BuOH-25, BuOH-50, BuOH-100 투여군은 각각 l1∼24% 및 l5∼24%의 유의적인 IOR의 생성 억제효과가 인정되었다(p<0.05∼0.001, p<0.01∼0.001). LPO의 생성은 간장의 mitochondria에서 BuOH-100투여군과 microsomes에서는 BuOH-50, BuOH-100투여군에서 각각9%, 9∼l3%의 유의적인 LPO의 생성 억제효과가 인정되었고(P<0.05∼0.01), OP의 생성은 간장의 mitochondria에 서 BuOH-50 및 BuOH-100투여군에 서 10∼12%의 유의적인 OP의 생성 억제효과가 인정되었지만(p<0.05), 간장의 microsomes에서는 유의성을 인정할 수 없었다. 그렇지만, 간장의 chloroform층에서 LF의 축적은 BuOH-50, BuOH-100투여군에서 8∼9%의 유의적인 LF의 축적 억제효과가 인정되었다(p<0.05). 따라서 솔잎 추출물의 BuOH 획분의 투여는 간장의 유동성을 촉진하고 산화적 스트레스를 효과적으로 억제하여 생리적 노화를 효과적으로 억제할 수 있을 것으로 기대된다.

Keywords

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