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常规与隔日生酮饮食干预对新生期反复惊厥大鼠神经行为损伤的比较研究

Comparative research of the effect of routine and every other day ketogenic diet on neurobehavioral dama- ges induced by recurrent seizures in neonatal rats
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摘要 目的比较常规与隔日生酮饮食对新生期反复惊厥大鼠神经行为损伤的干预作用。方法采用随机数表法将48只日龄8d的Sprague—Dawley(SD)大鼠随机分成四组:单纯对照组、单纯惊厥组、惊厥+常规生酮饮食组、惊厥+隔日生酮饮食组,每组12只。通过三氟乙醚反复吸入建立新生期大鼠反复惊厥模型。各组大鼠禁饮食1d后,于日龄28d给予饮食干预并于日龄28d、35d检测血酮。于日龄35d进行神经行为测评(平面翻正测试、悬崖回避测试、负向趋地测试)。结果(1)平面翻正测试:单纯惊厥组平面翻正时间[(0.17±0.39)s]较单纯对照组[(0.67±0.49)s]明显缩短(P〈0.05);惊厥+常规生酮饮食组平面翻正时间[(0.5±0.52)s]较单纯惊厥组[(0.17±0.39)s]明显延长(P〈0.05);惊厥+隔日生酮饮食组[(0.17±0.39)s]与单纯惊厥组[(0.17±0.39)s]相比差异无统计学意义(P〉0.05)。(2)悬崖回避测试:单纯惊厥组[(12.58±4.83)s]较单纯对照组[(1.92±0.90)s]悬崖回避时间明显延长(P〈0.05);惊厥+常规生酮饮食组[(3.33±1.50)s]较单纯惊厥组[(12.58±4.83)S]时间明显缩短(P〈0.05);惊厥+隔日生酮饮食组[(5.58±1.93)s]较单纯惊厥组[(12.58±4.83)s]时间明显缩短(P〈0.05);惊厥+隔日生酮饮食组[(5.58±1.93)s]与惊厥+常规生酮饮食组[(3.33±1.50)s]相比时间明显延长(P〈0.05)。(3)负向趋地测试:单纯惊厥组[(3.17+1.70)s]较单纯对照组[(1.42±0.67)S]时间明显延长(P〈O.05);惊厥+常规生酮饮食组[(1.42±0.52)s]较单纯惊厥组[(3.17±1.70)S]时间明显缩短(P〈0.05);惊厥+隔日生酮饮食组[(2.33±0.78)s]与单纯惊厥组[(3.17±1.70)s]相比差异无统计学意义(P〉0.05)。结论常规生酮饮食和隔日生酮饮食都可改善新生期大鼠反复惊厥所致的神经行为损伤,常规生酮饮食的干预效果优于隔日生酮饮食。 Objective To compare the effect of routine ketogenic diet and every other day ketogenie diet on neurobehavioral damage induced by recurrent seizures in neonatal rats. Methods 48 postnatal day 8 (P8) SD rats were randomly divided into four groups with 12 in each group:the control group (CONT), the recurrent seizure group( RS+ND), recurrent seizure + routine ketogenic diet group(RS+KD) and recurrent seizure+ every other day ketogenic diet group(RS+KOD). The recurrent seizures model was induced by flurothyl at p9 and last for 8 days. After a day of fasting the postnatal 28 day rats were placed on either ordinary or ketogenic diet according to packet design. Plane righting experiment, cliff avoidance test and negative geotaxis test were used to assess the neurobe- havioral performance at p35. Results ( 1 ) Plane righting experiment:the plane righting time of RS+ ND group ((0.17±0.39) s) was significantly shorter than that of NS+ND group ( (0.67±0.49) s) (P〈0.05) ; and the plane righting time of RS+KD group((0.58±0.52) s) was significantly longer than that of RS+ND group ((0.17±0.39) s) (P〈0.05). There was no statistical significance between RS+KOD group((0.17±0.39) s) and RS+ND group ( (0.17±0.39) s) (P〉0.05). (2) Cliff avoidance test :the cliff avoidance time of RS+ND group ( ( 12.58±4.83 ) s) was significantly longer than that of NS+ND group ( (1.92±0.90) s), RS+KD group( ( 3.33± 1.50) s) and RS+ KOD group (P〈0.05) ; and the cliff avoidance time of RS+KOD group ( ( 5.58± 1.93 ) s ) was significant longer than that of RS+KD group( (3.33± 1.50)s) (P〈0.05). (3)Negative geotaxis test:the negative geotaxis time of RS+ND group((3.17±1.70)s) was significantly longer than that of NS+ND group((1.42±0.67) s) and RS+KD group ( (1.42±0.52) s) (P〈0.05). There was no statistical significance between RS+KOD goup and RS+ND group(P〉0.05). Conclusion The ketogenic diet can improve nettrobehavioral damage caused by flurothyl-induced recurrent seizures inneonatal rats. The every other day KD group shows a weak intervention effect comparing with the routine KD group.
出处 《中华行为医学与脑科学杂志》 CAS CSCD 北大核心 2014年第1期1-3,共3页 Chinese Journal of Behavioral Medicine and Brain Science
基金 国家自然科学基金(81271458)江苏省医学重点人才基金项目(RC2011113)
关键词 新生期 惊厥 生酮饮食 神经行为 Neonatal Seizures Ketogenic diet Neurobehavior
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参考文献11

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