CN106581307A - 一种改善阿尔茨海默病认知功能障碍的组合物 - Google Patents

一种改善阿尔茨海默病认知功能障碍的组合物 Download PDF

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CN106581307A
CN106581307A CN201611194946.1A CN201611194946A CN106581307A CN 106581307 A CN106581307 A CN 106581307A CN 201611194946 A CN201611194946 A CN 201611194946A CN 106581307 A CN106581307 A CN 106581307A
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蒋与刚
庞伟
刘伟
杨亚丹
谭龙
杨红澎
孙寿丹
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Institute of Hygiene and Environmental Medicine Academy of Military Medical Sciences of Chinese PLA
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Abstract

本发明公开了一种改善阿尔茨海默病认知功能障碍的组合物,包括:蓝莓提取物,银杏叶提取物,维生素B6,维生素B12,维生素E,维生素C,叶酸,二十二碳六烯酸,绿茶多酚提取物,乳酸锌,硒酵母。动物实验结果显示,与AD模型组比较,本发明的组合物能使实验动物APP/PS1小鼠在Morris水迷宫实验中的潜伏时间明显缩短、穿越平台的次数明显增加,即空间学习记忆能力明显提高;海马及皮层区老年斑数量明显减少,且效果优于单独蓝莓提取物补充。上述实验结果表明,给阿尔茨海默病模型小鼠补充适量的本发明的组合物可明显改善其学习记忆功能障碍。

Description

一种改善阿尔茨海默病认知功能障碍的组合物
技术领域
本发明涉及一种营养素和植物活性成分的组合物,特别是涉及一种改善阿尔茨海默病认知功能障碍的组合物。
背景技术
阿尔茨海默病(Alzheimer’s Disease,AD)是一种进行性的神经退行性疾病,与年龄高度相关且难以治愈。1906年,德国神经科医生Alois Alzheimer通过分析一位死于不明精神疾病患者的脑组织,首次报告了AD。据阿尔茨海默病协会统计,目前在发达国家约13%的65岁以上老人患有AD,它已跃升为老年病人的第五大死亡原因。世界卫生组织(WHO)最新发布,2025年全球AD患者的人数将是目前的四倍,预计到2050年AD患者将达到1.14亿。
目前阿尔茨海默病的治疗药物主要包括胆碱能激动剂、益智药、钙拮抗剂、神经生长因子等。胆碱能受体激动剂如占诺美林等,在临床试验中证实可改善痴呆患者症状。益智药包括吡拉西坦(脑复康)、茴拉西坦、奈非西坦等吡咯烷酮类药物以及氢化麦角碱(海特琴)、麦角溴烟酯(尼麦角林)等麦角生物碱类药物均有一定疗效。临床前药理和动物实验证明,神经生长因子(NGF)对中枢胆碱能神经元有营养作用,可改善老年动物的认知功能障碍。但由于其分子量大,不易通过血脑屏障。另外,用于治疗痴呆的钙通道阻滞剂主要有尼莫地平、氟桂利嗪等,可通过阻滞钙离子内流起到神经保护作用,并改善脑供血。以上药物均有不同程度的毒副作用,若作为阿尔茨海默病的预防药物长期使用,还存在价格昂贵和安全毒理性问题。
植物化学物具有抗氧化和清除自由基的作用,已成为当今国内外营养科学研究领域内的热点之一,在防治AD等神经退行性疾病中可能具有重要作用。蓝莓富含花色苷等植物化学物质和多种生物活性成分,因其具有抗AD、改善视力、增强免疫力、保护心脏功能等多种功效而倍受关注。大量研究提示,富含花色苷的蓝莓具有延缓AD发生发展的效用。Devore等发现大量摄取蓝莓或者草莓均可延缓老年认知衰退。Joseph等发现给予老龄大鼠含2%的蓝莓或者草莓的饮食,可以明显改善其认知功能。随后他又发现给予4月龄APP/PS1双转基因小鼠饲喂含2%蓝莓提取物的NIH-31饲料至12月龄,可以观察到AD小鼠的行为学改善。
发明内容
本发明的目的是克服现有技术中的不足,提供一种改善阿尔茨海默病认知功能障碍的组合物。
本发明的技术方案概述如下:
一种改善阿尔茨海默病认知功能障碍的组合物,按重量包括:蓝莓提取物500~1500份,银杏叶提取物60~180份,维生素B6 10~30份,维生素B12 0.01~0.03份,维生素E30~90份,维生素C 50~150份,叶酸0.2~0.6份,二十二碳六烯酸100~300份,绿茶多酚提取物75~225份,乳酸锌25~75份,硒酵母0.025~0.075份。
优选地,所述蓝莓提取物为1000份,所述银杏叶提取物为120份,所述维生素B6为20份,所述维生素B12为0.02份,所述维生素E为60份,所述维生素C为100份,所述叶酸为0.4份,所述二十二碳六烯酸为200份,所述绿茶多酚提取物为150份,所述乳酸锌为50份,所述硒酵母为0.05份。
本发明的组合物经动物实验结果显示,与对照组比较,能使实验动物APP/PS1小鼠在Morris水迷宫实验中的潜伏时间明显缩短、穿越平台的次数明显增加,即空间学习记忆能力明显提高;海马及皮层区老年斑数量明显减少。上述实验结果表明,给阿尔茨海默病模型小鼠补充适量的本发明的组合物可明显改善其学习记忆功能障碍。
附图说明
图1为APP/PS1小鼠海马及皮层淀粉样斑块沉积及本发明的组合物的逆转效应。(n=5)A~D:海马;E~H:皮层
图2为本发明的组合物对APP/PS1小鼠海马及皮层淀粉样斑块数量的影响。(n=5)A:海马;B:皮层(*,P<0.05vs AD)
具体实施方式
下面结合具体实施例对本发明作进一步的说明:
各实施例中维生素B6,维生素B12,维生素E,维生素C,叶酸,乳酸锌,硒酵母购于天津四环营养保健品厂。也可以选用其它企业生产的产品。
二十二碳六烯酸(微藻DHA)由武汉市福星生物药业有限公司提供(DHA含量为10.53%)。各实施例中所使用的DHA是按纯品计算投料的。
蓝莓提取物、银杏提取物、绿茶多酚提取物均购于辽宁大兴安岭林格贝有机食品有限责任公司。
实施例1
一种改善阿尔茨海默病认知功能障碍的组合物,按重量份包括:蓝莓提取物1000份,银杏叶提取物120份,维生素B6 20份,维生素B12 0.02份,维生素E 60份,维生素C 100份,叶酸0.4份,二十二碳六烯酸200份,绿茶多酚提取物150份,乳酸锌50份,硒酵母0.05份。
实施例2
一种改善阿尔茨海默病认知功能障碍的组合物,按重量份包括:蓝莓提取物500份,银杏叶提取物60份,维生素B6 10份,维生素B12 0.01份,维生素E 30份,维生素C 50份,叶酸0.2份,二十二碳六烯酸100份,绿茶多酚提取物75份,乳酸锌25份,硒酵母0.025份。
实施例3
一种改善阿尔茨海默病认知功能障碍的组合物,按重量份包括:蓝莓提取物1500份,银杏叶提取物180份,维生素B6 30份,维生素B12 0.03份,维生素E 90份,维生素C 150份,叶酸0.6份,二十二碳六烯酸300份,绿茶多酚提取物225份,乳酸锌75份,硒酵母0.075份。
实施例4
一种改善阿尔茨海默病认知功能障碍的组合物,按重量份包括:蓝莓提取物500份,银杏叶提取物180份,维生素B6 10份,维生素B12 0.03份,维生素E 30份,维生素C 150份,叶酸0.2份,二十二碳六烯酸300份,绿茶多酚提取物75份,乳酸锌75份,硒酵母0.025份。
实施例5
一种改善阿尔茨海默病认知功能障碍的组合物,按重量份包括:蓝莓提取物1500份,银杏叶提取物60份,维生素B6 30份,维生素B12 0.01份,维生素E 90份,维生素C50份,叶酸0.6份,二十二碳六烯酸100份,绿茶多酚提取物225份,乳酸锌25份,硒酵母0.075份。
实施例6
制备:
1.分别将实施例1-实施例5组合物中的组分维生素E、维生素C、维生素B6、维生素B12、叶酸、乳酸锌、硒酵母准确称重,将上述原料的顺序由小量到大量逐级混合,并搅拌均匀;
2.准确称取二十二碳六烯酸(DHA)、蓝莓提取物、银杏提取物、绿茶多酚提取物,充分混合,然后与步骤1的混合物混合,并搅拌均匀即得。
实施例7
效果评价
清洁级成年APP/PS1小鼠(系AD转基因小鼠,雌雄各半,购自中国医学科学院医学实验动物研究所)28只,合笼后获得APP/PS1孕鼠;同月龄野生型小鼠6只(雌雄各半),合笼后获得野生型孕鼠。
APP/PS1孕鼠随机分为三组:(1)阳性对照组(以下简称AD组);(2)蓝莓提取物干预组(以下简称AD+BB组);(3)本发明组合物(实施例1的组合物)补充组(以下简称AD+NM组)。野生型孕鼠为阴性对照组(以下简称CT组)。
各组小鼠的饲养与处理:(1)CT组和AD组孕鼠自孕1天起,饲喂AIN-93饲料直至子鼠断乳(21d);(2)AD+BB组孕鼠自孕1天起,饲喂含2wt%蓝莓提取物的AIN-93饲料直至子鼠断乳(21d);(3)AD+NM组孕鼠自孕1天起,饲喂含2wt%本发明组合物的AIN-93饲料直至子鼠断乳(21d)。
AD组、AD+BB组和AD+NM组基因型鉴定为阳性的子鼠及CT组全部子鼠作为研究对象,每组10只。自由饮水。干预结束后,待子代鼠9月龄时,Morris水迷宫实验(包括定向航行实验和空间探索实验)检测学习记忆能力;HE和4G8免疫组化染色观察脑组织的病理学改变。
结果显示:
(1)定向航行实验中,与CT组比较,AD组小鼠的潜伏时间明显延长;与AD组比较,AD+NM组和AD+BB组小鼠的潜伏时间均明显缩短;而与AD+BB组比较,AD+NM组小鼠的潜伏时间明显缩短(表1)。
表1营养干预对APP/PS1小鼠在定向航行试验中潜伏时间的影响(s,n=10)
注:*,P<0.05;vs CT;#,P<0.05,vs AD;&<0.05,vs AD+BB
(2)空间探索实验中,与CT组比较,无论从目标象限还是对面象限放入,AD组小鼠穿越平台的次数均明显减少;与AD组比较,AD+NM组和AD+BB组小鼠穿越平台的次数均明显增加;而与AD+BB组比较,AD+NM组小鼠穿越平台的次数明显增加(表2)。
表2营养干预对APP/PS1小鼠在空间探索试验中穿越平台次数的影响(n=8)
注:**,P<0.01vs CT;#,P<0.05;##,P<0.01vs AD
(3)免疫组化染色结果显示AD+NM组和AD+BB组小鼠海马及皮层区老年斑数量均较AD组明显减少,其中AD+NM组老年斑最少(图1、图2)。
上述实验结果表明,给AD小鼠补充适量本发明的组合物可明显改善其认知功能障碍,效果优于单独蓝莓提取物补充。
实验证明,实施例2-5的组合物与实施例1的组合物改善其认知功能障碍功效相似。

Claims (2)

1.一种改善阿尔茨海默病认知功能障碍的组合物,其特征是按重量包括:蓝莓提取物500~1500份,银杏叶提取物60~180份,维生素B6 10~30份,维生素B12 0.01~0.03份,维生素E 30~90份,维生素C 50~150份,叶酸0.2~0.6份,二十二碳六烯酸100~300份,绿茶多酚提取物75~225份,乳酸锌25~75份,硒酵母0.025~0.075份。
2.根据权利要求1所述的组合物,其特征是所述蓝莓提取物为1000份,所述银杏叶提取物为120份,所述维生素B6为20份,所述维生素B12为0.02份,所述维生素E为60份,所述维生素C为100份,所述叶酸为0.4份,所述二十二碳六烯酸为200份,所述绿茶多酚提取物为150份,所述乳酸锌为50份,所述硒酵母为0.05份。
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