CN111388460A - 苏木酮a的抗衰老用途 - Google Patents
苏木酮a的抗衰老用途 Download PDFInfo
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- CN111388460A CN111388460A CN202010025501.0A CN202010025501A CN111388460A CN 111388460 A CN111388460 A CN 111388460A CN 202010025501 A CN202010025501 A CN 202010025501A CN 111388460 A CN111388460 A CN 111388460A
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Abstract
本发明公开了中药有效成分苏木酮A在抗衰老及制备相关抗衰老药物和/或保健品的用途。苏木酮A可有效延缓衰老进程,降低脂褐素和活性氧蓄积,并调控相关基因的表达,有利于维持机体健康状态。
Description
技术领域
本发明涉及一种中药活性成分苏木酮A的抗衰老用途。
背景技术
衰老进程的影响因素复杂,涉及到器官、组织、细胞及分子等诸多层面。而中药是我国传统医学的宝贵财富,其中不乏记载有延缓衰老、调理身体机能的中药组方或单方,但中药组方药物繁多,单方成分亦十分复杂,同一种药材的不同产地、种植方式等均会影响其中的活性成分的和药效,药物单体提纯往往成本较高、产量少,很多情况下难以直接应用西药单体的评价方式,对中药成分进行抗衰老相关研究。
本专利应用秀丽隐杆线虫进行一种中药组分苏木酮A的抗衰老研究。线虫作为模式生物,在抗衰老研究方面有着其他实验动物所不具备的优点:作为一种整体动物,其基因与60%-80%的人类基因高度保守,多种衰老特征与人类类似,其实验结果可以对人类衰老进程起到重要的提示作用;其世代周期短、获取方便,短期内可培养获得大量线虫用于实验,样本量充足,实验结果可信;使用低等动物替代更高等的实验动物,更符合动物伦理和动物实验“替代、优化、节约”的原则。以往应用线虫评估外源化合物抗衰老作用的各项指标丰富全面,如自然寿命、脂褐素累积等都可以反应线虫的衰老程度。
苏木(Caesalpinia sappan L.)是一种豆科、云实属植物,其干燥心材可入药,味甘、咸,平,归心、肝、脾经,可以活血祛瘀,消肿止痛,用于跌打损伤,瘀滞肿痛,经闭痛经,产后瘀阻等。
苏木酮A是以苏木心材为原料,通过提取、分离、纯化和干燥后得到的化合物,具有抗神经炎、气道炎症等活性。专利号CN 107362160公开了苏木酮A在治疗神经退行性疾病中的应用。查阅相关资料可知,目前未见苏木酮A在抗衰老方面的相关报道,将苏木酮A作为抗衰老成分进行应用具有重大的现实意义。
苏木酮A的英文名字为:Sappanone A(SA)
分子式:C6H12O5
分子量:284.26
CAS登记号:102067-84-5
化学结构式:
发明内容
在上述背景下,本发明公开了苏木酮A的抗衰老作用,其目的在于提供苏木酮A在抗衰老药物和/或保健品制备方面的新用途。
为了实现上述发明目的,本发明采用了如下的技术方案。
苏木酮A在制备抗衰老药物和/或保健品中的应用。
作为优选方案,所述苏木酮A在抗衰老方面的应用还包括包含有苏木酮A的多药联合作用。
作为优选方案,所述抗衰老药物和/或保健品,可以是口服制剂,也可以是非口服制剂。
作为优选方案,所述口服制剂可以选自片剂、胶囊剂、滴丸剂、颗粒剂、粉剂、口腔膜剂和口服液中的一种或多种。
作为优选方案,所述非口服制剂可以选自注射剂、膏剂、霜剂和栓剂中的一种或多种。
本发明所述药学上可以接受的辅料,包括药学领域常规的溶剂(如水、乙醇、丙二醇、注射用油等)、稀释剂(如淀粉、糖粉、糊精、乳糖、预胶化淀粉、微晶纤维、无机钙盐(如硫酸钙、磷酸氢钙、药用碳酸钙等)、甘露醇等、植物油、聚乙二醇等)、粘合剂(如水、乙醇、淀粉浆、羧甲基纤维素钠、羟丙基纤维素、甲基纤维素和乙基纤维素、羟丙甲纤维素等)、崩解剂(如干淀粉、羧甲基淀粉钠、低取代羟丙基纤维素、交联聚乙烯吡咯烷酮、交联羧甲基纤维素钠等)、润滑剂(如硬脂酸镁、微粉硅胶、滑石粉、氢化植物油、聚乙二醇类、月桂醇硫酸镁等)、吸收促进剂(如表面活性剂、Azone(月桂氮卓酮)、EDTA、水杨酸、氨基酸乙胺衍生物、乙酰醋酸酯类、β-二羧酸酯、芳香族酸性化合物、脂肪族酸等)、防腐剂(如苯甲酸、羟丙丁酯、羟丙甲酯、苯酚、间甲酚等)、矫味剂(如蔗糖、甜菊素等)等。
药理试验表明,苏木酮A能够显著延长秀丽隐杆线虫的自然寿命,提高其活动能力及耐热能力,减少体内脂褐素和活性氧累积,并且作用效果强于本发明中所应用的阳性对照药物小檗碱。
本发明的优点是:在较低剂量作用下即能够观察到苏木酮A明显的抗衰老作用;可以形成一定规模的苏木种植基地,保障药材的来源和经济性。药用植物的市场认同性比较高,市场的接受度高,市场前景良好。
附图说明
结合以下附图,对本发明做进一步说明。
图1示出了实施例1中各组秀丽隐杆线虫的死亡曲线,其中SA为苏木酮A实验组,BBR为小檗碱阳性对照组,C为溶剂对照组。
图2示出了实施例1中各组秀丽隐杆线虫的平均寿命,其中SA为苏木酮A实验组,BBR为小檗碱阳性对照组,C为溶剂对照组。
图3示出了实施例2中各组秀丽隐杆线虫的20s内的头部摆动和身体弯曲次数,其中SA为苏木酮A实验组,BBR为小檗碱阳性对照组,C为溶剂对照组。
图4示出了实施例3中各组秀丽隐杆线虫的在荧光显微镜下的脂褐素累积情况,其中SA为苏木酮A实验组,BBR为小檗碱阳性对照组,C为溶剂对照组。
图5示出了实施例3中各组秀丽隐杆线虫的脂褐素自发荧光所呈现的平均荧光密度百分比,以溶剂对照组为100%计算。其中SA为苏木酮A实验组,BBR为小檗碱阳性对照组,C为溶剂对照组。
图6示出了实施例4中各组秀丽隐杆线虫的在荧光显微镜下的活性氧累积情况,其中SA为苏木酮A实验组,BBR为小檗碱阳性对照组,C为溶剂对照组。
图7示出了实施例4中各组秀丽隐杆线虫的活性氧结合荧光探针后所呈现的平均荧光密度百分比,以溶剂对照组为100%计算。其中SA为苏木酮A实验组,BBR为小檗碱阳性对照组,C为溶剂对照组。
图8示出了实施例5中各组秀丽隐杆线虫调控衰老相关基因的表达情况,以溶剂对照组为1计算。其中SA为苏木酮A实验组,BBR为小檗碱阳性对照组,C为溶剂对照组。
具体实施方式
以下内容是结合具体的优选实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。
实施例所用苏木酮A由本单位从苏木中提取,经质谱和核磁等波谱学分析,鉴定为苏木酮A。所用秀丽隐杆线虫购自美国明尼苏达大学线虫遗传学中心(CaenorhabditisGenetics Center,http://www.cbs.umn.edu/CGC/)。其它的药品和试剂都能方便地市购。
实施例1:苏木酮A对秀丽隐杆线虫寿命的延长作用
1.1受试药物:
苏木酮A,溶解于DMSO,配制成40mM的储备液。
阳性对照(小檗碱),溶解于DMSO,配制成50mM的储备液。
1.2实验方法:
采用同步化后的L4期线虫,20℃恒温液体体系培养(培养体系为含100mM氯化钠,5.74mM磷酸二氢钾、44mM磷酸氢二钾、10mM柠檬酸钾、3mM氯化钙、3μM硫酸镁、1.29μM胆固醇、适量灭活的OP50大肠杆菌的无菌水溶液)。溶剂对照组给予1%DMSO、阳性对照组给予100μM小檗碱、实验组分别给予2、50μM苏木酮A。给药至线虫死亡,每日记录其存活、死亡及丢失数目、得到各组平均寿命、并对数据进行生存分析。
1.3实验结果:
各组间生存时间差异可见表1。
表1 不同浓度苏木酮A作用下秀丽隐杆线虫的寿命
注:a)延长百分比计算公式为(处理组平均寿命-溶剂对照组平均寿命)/溶剂对照组平均寿命×100%。
b)P值应用Kaplan-Meier对数秩检验计算得出,*表示与溶剂对照组比较P<0.05;**表示与溶剂对照组比较P<0.01;
表1的数据结合图1,图2示出,苏木酮A使秀丽隐杆线虫衰老减缓,随着药物作用剂量的升高,线虫自然寿命显著延长,且50μM组延长寿命的效果略微强于阳性对照。
本实施例的结果说明苏木酮A可以延长秀丽隐杆线虫的自然寿命,且呈剂量依赖关系,提示苏木酮A能够延缓衰老进程;在50μM剂量作用下,其作用效果约与100μM小檗碱的抗衰老作用相当。
实施例2:苏木酮A对秀丽隐杆线虫运动能力的提高作用
2.1受试药物:
苏木酮A,溶解于DMSO,配制成40mM的储备液。
阳性对照(小檗碱),溶解于DMSO,配制成50mM的储备液。
2.2实验方法:
线虫培养及药物浓度同实施例1。给药48h后,将线虫置于NGM(nematode growthmedium)平皿上,滴加60μl M9缓冲液(含1mM硫酸镁,5mM磷酸二氢钾,20mM磷酸氢二钠和20mM氯化钠的缓冲体系),线虫适应1min后,体式显微镜下记录其20s内身体弯曲次数及头部摆动次数。每组20只线虫,实验重复三次,使用SPSS 20.0软件采用单因素方差分析方法统计各组差异。
2.3实验结果:
给药后线虫20s内头部摆动次数和身体弯曲次数如图3。苏木酮A不影响线虫头摆,但身体弯曲次数较对照组有显著提高。本实施例说明苏木酮A能够提高线虫的运动能力,健康状况得到改善,侧面反应其抗衰老作用。
实施例3:苏木酮A降低线虫体内脂褐素累积水平
自然界中很多生物都具有脂褐素随年龄增长而累积的特点,如人类衰老后产生的老年斑。脂褐素可以被荧光激发后产生自发荧光,其激发光波长落于DAPI的波长范围内(Ex/Em:300-400nm/410-510nm),可方便地进行测量。
3.1受试药物:
苏木酮A,溶解于DMSO,配制成40mM的储备液。
阳性对照(小檗碱),溶解于DMSO,配制成50mM的储备液。
3.2实验方法:
线虫培养及药物浓度同实施例1。给药5天后,将线虫置于铺有琼脂糖凝胶的载玻片上,使用0.4M叠氮钠麻醉线虫,在荧光显微镜405nm激发光波长下观察线虫体内脂褐素累积情况,并计算荧光密度。每组20只线虫,实验重复三次,使用SPSS 20.0软件采用单因素方差分析方法统计各组差异。
3.3实验结果:
各组线虫体内脂褐素水平样例如图4,图5为各组线虫平均荧光密度百分比。可见随着苏木酮A剂量的升高,线虫荧光密度降低,50μM组较对照组差异具有统计学意义。说明苏木酮A使线虫体内的脂褐素累积状况得到改善。本实施例说明苏木酮A减少了衰老特征代谢产物脂褐素的累积,具有抗衰老作用。
实施例4:苏木酮A降低线虫体内活性氧(reactive oxygen species,ROS)累积水平
4.1受试药物:
苏木酮A,溶解于DMSO,配制成40mM的储备液。
阳性对照(小檗碱),溶解于DMSO,配制成50mM的储备液。
4.2实验方法:
线虫培养及药物浓度同实施例1。给药48h后,将线虫用DCFH-DA探针孵育后,置于铺有琼脂糖凝胶的载玻片上,使用0.4M叠氮钠麻醉线虫,在荧光显微镜488nm激发光波长下观察线虫体内ROS累积情况,并计算荧光密度。每组20只线虫,实验独立重复三次,使用SPSS20.0软件采用单因素方差分析方法统计各组差异。
4.3实验结果:
各组线虫体内ROS水平如图6,图7为各组线虫平均荧光密度。可见苏木酮A处理组线虫荧光较暗,随着苏木酮A剂量的升高,线虫荧光密度降低,且较对照组差异具有统计学意义,苏木酮A使线虫体内的ROS累积状况得到改善。本实施例说明苏木酮A减少了线虫体内的ROS,具有抗衰老作用。
实施例5:苏木酮A调节线虫衰老相关基因的表达
胰岛素/胰岛素样生长因子信号通路(Insulin/insulin-like growth factor-1signaling,IIS)是衰老调控的分子通路之一。DAF-2可以激活下游的AGE-1,进而激活PIP(Phosphatidylinositol-3,4,5-trisphosphate,磷脂酰肌醇-3,4,5-三磷酸肌醇),促进AKT-1,2和SGK-1表达,抑制DAF-16的核转位。而DAF-16核转位后激活其下游SOD-3、CLT-1/2等基因,增强线虫抗逆性和抗衰老能力。
5.1受试药物:
苏木酮A,溶解于DMSO,配制成40mM的储备液。
阳性对照(小檗碱),溶解于DMSO,配制成50mM的储备液。
5.2实验方法:
线虫培养同实施例1,苏木酮A给药剂量为50μM,小檗碱为100μM。给药48h后,采用TRlzol(Invitrogen,Carlsbad,CA,USA)提取线虫总RNA,使用反转录试剂盒(Takara,Kusatsu,Japan)反转录为cDNA,以tba-1为内参基因进行rt-qPCR。实验独立重复三次,使用2-ΔΔCt法进行统计分析。
5.3实验结果:
各组线虫待测基因表达情况如图8。苏木酮A作用后,线虫daf-2表达量下调,daf-16和daf-18表达量上调,且相对于对照组差异具有统计学意义。本实施例说明苏木酮A激活了抗衰老相关信号通路,解释了苏木酮A抗衰老作用的分子机制。
总之,本发明提供了苏木酮A作为抗衰老成分的新医药用途,从而为抗衰老药品或保健品的制备提供了新的选择。
Claims (7)
1.苏木酮A在制备抗衰老药物和/或保健品中的应用。
2.苏木酮A在制备延长寿命的药物和/或保健品中的应用。
3.苏木酮A在制备延长秀丽隐杆线虫寿命的药物中的应用。
4.根据权利要求1-3所述的应用,所述苏木酮A在抗衰老方面的应用还包括包含有苏木酮A的多药联合作用。
5.根据权利要求1-4所述应用,所述抗衰老药物和/或保健品,可以是口服制剂,也可以是非口服制剂。
6.根据权利要求1-5所述的应用,所述口服制剂可以选自片剂、胶囊剂、滴丸剂、颗粒剂、粉剂、口腔膜剂和口服液中的一种或多种。
7.根据权利要求1-6所述应用,所述非口服制剂可以选自注射剂、膏剂、霜剂和栓剂中的一种或多种。
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