CN116350669A - 青蒿提取物的dna损伤修护应用 - Google Patents
青蒿提取物的dna损伤修护应用 Download PDFInfo
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- CN116350669A CN116350669A CN202310406449.7A CN202310406449A CN116350669A CN 116350669 A CN116350669 A CN 116350669A CN 202310406449 A CN202310406449 A CN 202310406449A CN 116350669 A CN116350669 A CN 116350669A
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- sweet wormwood
- dna damage
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Abstract
本发明提供了青蒿提取物的DNA损伤修护应用,其中,所述青蒿提取物采用溶剂提取法制备。本发明还涉及青蒿提取物在制备具有DNA损伤修护作用的产品中的应用,其中所述产品是药品、保健食品或皮肤外用剂,所述青蒿提取物采用溶剂提取法制备。
Description
技术领域
本发明涉及天然药物化学领域和化妆品领域,具体涉及青蒿提取物的DNA损伤修护应用。
背景技术
DNA是细胞组织中最为中药的物质之一,是生物遗传信息的载体,参与调控遗传信息的表达。多种多样的内源或外源的损伤因子可以通过化学方法损伤我们的DNA。随着年龄增长,暴露在阳光下的皮肤受到DNA损伤是最明显的后果之一,因氧化应激反应所积累的活性氧,如羟自由基等,可以攻击DNA,破坏DNA结构,导致DNA的断裂等,从而带来损伤。而越来越多的证据表明DNA损伤在衰老过程中扮演着主要角色。且有研究表明,DNA损伤随着年龄增加的一个可能原因是DNA修复能力可能随着年龄的增长而减弱。
由于DNA损伤在多种衰老相关的疾病中都扮演着重要的角色,因此在这一领域,干预手段主要靶向DNA修复进程。然而,一些被开发的药物可能直接或间接加剧DNA损伤,仅仅少数分子被证实可以直接对DNA修复有促进作用。例如,RAD51刺激性化合物1(RS-1)可以提高双链DNA修复信号通路的同源重组;尼可地尔可以通过APE1酶刺激碱基切除修复;阿司匹林被证实可以促进核苷酸切除修复。也有一些天然成分对DNA损伤修复的报道,比如绞股蓝多糖对过氧化氢反应诱导质粒DNA损伤具有保护作用、枸杞多糖对紫外线致人皮肤成纤维细胞DNA链断裂损伤的防护、白藜芦醇对自然衰老小鼠皮肤线粒体DNA损伤的实验研究等。
然而,目前为止未见青蒿相关对DNA损伤修护方面的研究和报道。相反,一些研究报道了青蒿素、青蒿琥酯和双氢青蒿素对各种肿瘤细胞具有引起DNA损伤的作用(例如,参见谢红,陈立军,姚丽等,青蒿素对肿瘤细胞DNA的损伤作用[J].黑龙江医药科学,2008,31(5):15-16;谢红,陈立军,姚丽等,单细胞电泳观察双氢青蒿素对K562细胞DNA的损伤作用[J].武警医学院学报,2008,17(1):4-6;周媛媛,封阳,张旭光等,青蒿琥酯对人宫颈癌HeLa和Siha细胞辐照后DNA损伤水平的影响[J].辐射研究与辐射工艺学报,2011,29(1):33-36)。
青蒿为菊科植物黄花蒿Artemisia annua L.的干燥地上部分,别名蒿子、臭蒿、香蒿、苦蒿、臭青蒿、香青蒿、细叶蒿、细青蒿、草青蒿、草蒿子。《中国药典》记录,青蒿清热解暑,除蒸,截疟。用于暑邪发热,阴虚发热,夜热早凉,骨蒸劳热,疟疾寒热,湿热黄疸。现代药理学研究,多集中在对于青蒿素一类药物的抗疟疾作用,在对近10年文献的检索,以青蒿与皮肤为关键词,功效主要集中在抗炎抗敏、免疫调节、瘢痕增生和抗菌等方面,另也有在抑制痤疮和日光性皮炎等方面研究。但是,迄今为止,未见青蒿相关对DNA损伤修护方面的研究和报道。
因此,本发明意外地发现,青蒿提取物具有DNA损伤修护作用,能够帮助抑制和减少由于DNA损伤对皮肤造成的影响。
发明内容
一方面,本发明提供了青蒿提取物的DNA损伤修护应用,其中,所述青蒿提取物采用溶剂提取法制备。
在优选的实施方式中,所述青蒿提取物的使用浓度至少为0.15%v/v,优选0.15%v/v至0.9%v/v。
在优选的实施方式中,所述DNA损伤修护作用为降低DNA损伤的标志物γH2A.X蛋白含量。
另一方面,本发明还涉及青蒿提取物在制备具有DNA损伤修护作用的产品中的应用,其中所述产品是药品、保健食品或皮肤外用剂,所述青蒿提取物采用溶剂提取法制备。
在优选的实施方式中,青蒿提取物在皮肤外用剂、药品及保健食品中的含量0.001-20重量%,优选0.01-5重量%。
在优选的实施方式中,所述皮肤外用剂选自:面霜、乳液、啫喱、化妆水、精华液、面膜、眼霜、气雾清洁泡、喷雾、沐浴露、或洗面奶。
附图简要说明
图1显示了荧光图片的结果(荧光显微镜Leica,型号:DM2500;放大倍数:20倍)。
图2显示了γH2A.X数据结果的柱状图。用t-test方法进行统计分析时,与BC组相比,显著性以#表示,P值<0.05表示为#,P值<0.01表示为##;与NC组相比,显著性以*表示,P值<0.05表示为*,P值<0.01表示为**。
具体实施方式
本发明涉及青蒿提取物在DNA损伤修护方面的作用。该作用可在化妆品中应用,帮助抑制和减少由于DNA损伤对皮肤造成的影响。
为了提供更简明的描述,本文给出的一些数量表述没有用术语“约”修饰。应当理解,无论是否明确地使用了术语“约”,本文所给出的每个量都意在指代实际的给定值,并且还意在指代由本领域的普通技术人员可合理推测出的这些给定值的近似值,包括这些给定值的由实验和/或测量条件所引起的近似值。
为了提供更简洁的描述,本文中一些数量表述被叙述为约X量至约Y量的范围。应当理解,当叙述范围时,该范围并不限制于所叙述的上下界限,而应包括约X量至约Y量的整个范围或它们之间的任何量。
青蒿提取物
青蒿为菊科植物黄花蒿Artemisia annua L.的干燥地上部分,别名蒿子、臭蒿、香蒿、苦蒿、臭青蒿、香青蒿、细叶蒿、细青蒿、草青蒿、草蒿子。《中国药典》记录,青蒿清热解暑,除蒸,截疟。用于暑邪发热,阴虚发热,夜热早凉,骨蒸劳热,疟疾寒热,湿热黄疸。现代药理学研究,多集中在对于青蒿素一类药物的抗疟疾作用。在对近10年文献的检索,以青蒿与皮肤为关键词,功效主要集中在抗炎抗敏、免疫调节、瘢痕增生和抗菌等方面,另也有在抑制痤疮和日光性皮炎等方面研究。然而,迄今为止,未见青蒿相关对DNA损伤修护方面的研究和报道。
在本发明中的实验条件下(提取工艺和功效研究),证实了青蒿提取物在DNA损伤修护方面的作用,帮助抑制和减少由于DNA损伤对皮肤造成的影响,改善皮肤状态。
在一些实施方式中,青蒿提取物的使用浓度至少为0.15%v/v。在一些实施方式中,青蒿提取物的使用浓度为0.15%v/v至0.9%v/v。
在一些实施方式中,所述DNA损伤修护作用表现为降低DNA损伤的标志物γH2A.X蛋白含量。
作为提取方法,可采用通常的溶剂提取方法,例如热提、冷浸和渗滤等,本领域技术人员可以根据实际情况选用合适的提取方法。
在对青蒿进行溶剂提取时,应当选择具有以下特性的提取溶剂:①溶解性能好,即溶剂对所需成分的溶解度要大,对杂质的溶解度要小,或反之;②惰性,即溶剂不能与植物成分发生化学反应,即使反应也属于可逆性的;③操作简便,在提取的提取物后能够方便地将溶剂与提取物分离,或者能直接将溶于溶剂中的提取物用于下一步骤;④经济安全,即在选择溶剂时要考虑经济易得,毒性小,便于回收和反复使用,并具有一定的安全性,对环境污染小。
可采用惰性溶剂和反应溶剂进行提取的方法。所述惰性溶剂,是指与植物成分不起任何化学反应的溶剂,可以是水、乙醇、甲醇、苯、氯仿、乙酸乙酯、丙酮等。所述反应溶剂,是指可增加植物中酸性和碱性成分在极性溶剂中的溶解度的溶剂,可以是稀酸或稀碱的水溶液或醇溶液,如盐酸、硫酸、磷酸、乙酸、酒石酸、氢氧化钠、碳酸钠、碳酸氢钠的溶液。
在本发明的一些实施方式中,采用水(例如,去离子水)进行提取。在本发明的一些实施方式中,采用乙醇进行提取。在本发明的一些实施方式中,可使用体积浓度40%~100%的乙醇,优选使用50%~98%的乙醇,更优选使用70%~95%的乙醇。
本发明的青蒿提取物可以通过微波提取进行制备。例如,可以采用水辅助微波方法进行提取。
本发明的青蒿提取物可以通过超声提取进行制备。例如,可以采用乙醇(例如,70体积%的乙醇)辅助超声方法进行提取。
本发明的青蒿提取物可以通过回流提取进行制备。例如,可以采用乙醇(例如,50体积%的乙醇)辅助回流方法进行提取。
在一些实施方式中,青蒿提取物通过大孔树脂洗脱。采用的大孔树脂包括:非极性,D-101(国药试剂),XAD2(罗门哈斯)、HP-20(三菱化学),HZ-802(华昌聚合物公司);弱极性,AB-8(南开合成科技),DM-130(天津海光)、XAD7(罗门哈斯);极性,DM-301(天津海光)、NKA-9(南开合成科技),HZ-806(华昌聚合物公司)。
含青蒿提取物的药品、保健食品或皮肤外用剂
本发明的青蒿提取物可以作为功效添加剂应用于药品、保健食品或皮肤外用剂中,能够帮助抑制和减少由于DNA损伤对皮肤造成的影响,改善皮肤状态。
在一些实施方式中,青蒿提取物在药品、保健食品或皮肤外用剂中的含量0.001-20重量%,优选0.01-5重量%。
在一些实施方式中,所述药品选自:片剂、胶囊、乳剂、混悬剂、粉末剂、颗粒剂、溶液剂、以及本领域已知的各种药品剂型。根据剂型的不同类型添加不同的用量。
保健食品亦称功能性食品。它具有调节人体功能的作用,但不以治疗疾病为目的,适于特定人群食用。在一些实施方式中,所述保健食品可以是粉末剂型。
在一些实施方式中,所述皮肤外用剂选自:面霜、乳液、啫喱、化妆水、精华液、面膜、眼霜、气雾(清洁泡)、喷雾、沐浴露和洗面奶。根据制剂的不同类型添加不同的用量。
所述皮肤外用剂是通常用于皮肤外部的所有成分的统称概念,例如可以是化妆品组合物。所述化妆品组合物中可以是基础化妆品、面部妆容化妆品、身体用化妆品、头发护理用化妆品等,对其剂型无特殊限制,根据不同目的可合理选择。所述化妆品组合物中根据剂型和目的的不同还含有不同的化妆品学层面允许的介质或基质赋形剂。
皮肤外用剂含有皮肤学上可接受的载体或媒介物(例如,洗液、面霜、软膏、清洁剂等等)。本领域普通技术人员能够根据本领域公知常识,选择能够以上文所述的浓度溶解或分散这些组分的载体。当使用一种载体时,该载体应当不会导致青蒿提取物的灭活,而且在使用时不会在皮肤上带来任何相反的作用。
本领域普通技术人员能够根据公知常识和它们以最适用于处理时活性组分的浓度而溶解或分散在活性组分中的能力来选择适宜的载体,所述载体例如包括水、醇类、油等。
本发明的皮肤外用剂可以是局部施用产品的形式,其能够从外部施用在皮肤上,并能够以本领域公知的那些普通技术制备。载体可以具有各种实际的形式,例如面霜,敷料,凝胶,洗液,软膏或者液体,其包括敷用和清洗掉的组合物,以及用本领域公知的方法将它们加入到例如干的或湿的涂抹物,水凝胶基质,或粘性(或非粘性)贴片的材料载体中。优选地,载体是一种凝胶或增加水分的洗剂,或者以干或湿的形式的涂抹物。
典型的载体包括包含水和/或醇和润肤剂的乳剂,其中润肤剂是例如烃的油和蜡,硅油,透明质酸,植物、动物或海洋生物的脂肪或油,甘油酯衍生物,脂肪酸、或脂肪酸酯或醇或醇醚,羊毛脂及其衍生物,多元醇或酯,蜡酯,甾醇,磷脂等等,一般还有乳化剂(非离子的,阳离子的或阴离子的),尽管一些润肤剂本身具有乳化特性。另外,可以利用其组分的不同比例和/或通过掺入例如树胶或其他形式的亲水胶体的增稠剂将这些相同组分配制成面霜、凝胶、或固体棒。
本发明的皮肤外用剂可以包含在皮肤护理组合物中通常能找到的附加组分,例如润肤剂、皮肤调节剂、乳化剂、防腐剂、抗氧化剂、香料、螯合剂等,只要它们与皮肤外用剂中其他的组分在物理上和化学上相容、且不影响本发明的青蒿提取物的效果即可。
在本发明的皮肤外用剂的一些实施方式中,可使用一种或多种防腐剂。适宜的防腐剂包括对羟基苯乙酮、C1-C4对羟基苯甲酸烷基酯和苯氧基乙醇。基于组合物总重量,防腐剂的用量为大约0.5至大约2重量%,优选大约0.5至1重量%。
在本发明的皮肤外用剂的一个实例中,可使用一种或多种抗氧化剂。适宜的抗氧化剂包括丁化羟基甲苯(BHT)、抗坏血酸棕榈酸酯(BHA)、丁羟茴醚、苯基-α-萘基胺、氢醌、没食子丙酯、去甲二氢愈创木酸、维生素E或维生素E的衍生物、维生素C及其衍生物、泛酸钙、绿茶提取物和混合的多酚,以及上面所述的物质的混合物。所使用的抗氧化剂是组合物总重量的大约0.02至0.5重量%,更最优选的是从大约0.002至0.1重量%的用量范围。
在本发明的皮肤外用剂的一个实例中,可使用一种或多种润肤剂,通过其保持在皮肤表面上或在角质层中的能力,起到润滑剂的作用,以减少剥落,改善皮肤的外观。典型的润肤剂包括脂肪酯、脂肪醇、矿物油、聚醚硅氧烷共聚物等等。适宜的润肤剂的例子非限定地包括,聚丙二醇(“PPG”)-15十八烷基醚,PPG-10十六烷基醚,Steareth-10,Oleth-8,PPG-4十二烷基醚,维生素E醋酸酯,羊毛脂,鲸蜡醇,鲸蜡硬脂醇乙基己酸酯,十六十八醇,甘油硬脂酸酯,羟基硬脂酸辛脂,二甲基聚硅氧烷,以及它们的组合。鲸蜡醇,鲸蜡硬脂醇乙基己酸酯,十六十八醇,甘油硬脂酸酯以及它们的组合是优选的。使用时,润肤剂是基于组合物总重量的大约0.1至大约30重量%,优选大约1至大约30重量%的用量范围。
在本发明的皮肤外用剂的一个实例中,可使用一种或多种保湿剂。保湿剂也称为湿润剂,其有助于提高润肤剂的效果,减少剥落,刺激组成的鳞皮的去除和提高皮肤触感。可使用多元醇作为保湿剂,包括但并不限于,甘油,聚亚烷基二醇,亚烷基多元醇及其衍生物,包含丁二醇、丙二醇、双丙二醇,聚丙三醇,聚乙二醇及其衍生物,山梨醇,羟丙基山梨醇,己二醇,1,3-二丁二醇,1,2,6-己三醇,乙氧基化甘油,丙氧基化甘油,以及它们的组合。使用时,基于组合物的总重量,保湿剂的用量为大约0.1至大约20重量%,优选是大约1至大约15重量%。
在本发明的皮肤外用剂的一个实例中,可使用一种或多种乳化剂。乳化剂可在有效稳定量的范围内使用。优选地,在组合物总重量的基础上,以大约1.0至大约10.0重量%,更优选的是大约3.0至大约6.0重量%的用量来使用乳化剂。可以使用任何与组合物中的组分相容的乳化剂。适宜的乳化剂包括硬脂酸,鲸蜡醇,甘油硬脂酸酯,卵磷脂,十八烷醇,Steareth-2,Steareth-20,丙烯酸(酯)类/C10-30烷醇丙烯酸酯交联聚合物,以及它们的组合。
在本发明的皮肤外用剂的一个实例中,可使用一种或多种pH调节剂。本发明的皮肤外用剂中有益的pH调节剂包括氨丁三醇。使用时,基于组合物的总重量pH调节剂的用量为大约0.1至大约2重量%,优选是大约0.1至大约1重量%。
在本发明的一个具体实施方式中,皮肤外用剂包含丙烯酸(酯)类/C10-30烷醇丙烯酸酯交联聚合物、甘油、对羟基苯乙酮、甘油硬脂酸酯和卵磷脂、十六/十八醇、鲸蜡硬脂醇乙基己酸酯、氨丁三醇或它们的组合。
在本发明的一些实施方式中,皮肤外用剂中青蒿提取物的用量为0.001%-20%(w/w),优选的重量百分比为0.01%-20%(w/w),更优选的重量百分比为0.01%-10%(w/w),最优选的重量百分比为0.1%-5%(w/w)。
在本发明的一个具体实施方式中,皮肤外用剂中青蒿提取物的用量为0.1-5重量%。在优选的实施方式中,皮肤外用剂中青蒿提取物的用量为0.13重量%。
实施例
下面结合具体实施例,以进一步阐述本发明。有必要在此指出的是,实施例只用于对本发明进行进一步的说明,不能理解为对本发明保护范围的限制,该领域的技术熟练人员可以根据上述本发明的内容做出一些非本质的改进和调整。下列实施例中未注明具体条件的试验方法,通常按照常规条件,或按照制造厂商所建议的条件。除非另有说明,所有的百分比和份数按重量计。
以下实施例中采用的青蒿均来自安徽亳州京皖饮片厂。离心条件包括:上海卢湘仪离心机仪器有限公司,3~20℃,3500~5000rpm条件下离心5~20min。超声提取条件包括:超声时间20~50min,超声2~8s,间隙2~5s。乙醇和丙二醇购自国药试剂,滤纸购自Whatman公司。
实施例中采用的大孔树脂包括:非极性,D-101(国药试剂),XAD2(罗门哈斯)、HP-20(三菱化学),HZ-802(华昌聚合物公司);弱极性,AB-8(南开合成科技),DM-130(天津海光)、XAD7(罗门哈斯);极性,DM-301(天津海光)、NKA-9(南开合成科技),HZ-806(华昌聚合物公司)。
实施例1:青蒿提取物的制备
青蒿50g,用15倍去离子水提取2次,每次1h,筛网过滤(上海宜昌仪器纱筛厂,20目),滤液浓缩至3倍生药量,加入一定量95%乙醇醇沉,滤纸过滤,浓缩回收至无醇味,最终配制成固含1.5%溶液,即得。
实施例2:青蒿提取物的制备
青蒿75g,用25倍去离子水微波提取1次,微波45min,温度35℃,功率0.60kw,离心(5000rpm离心10min)过滤,滤液浓缩至2倍生药量,加入一定量95%乙醇醇沉,离心(5000rpm离心10min)过滤,浓缩回收至无醇味,上大孔树脂(D-101,国药试剂),洗脱回收乙醇,最终配制成固含5.5%溶液,即得。
实施例3:青蒿提取物的制备
青蒿125g,用20倍70%乙醇超声提取2次,每次超声40min(室温超声,超声6s,间隙2s),离心(5000rpm离心10min)过滤,滤液浓缩回收无醇味,配制成固含2.5%溶液,即得。
实施例4:青蒿提取物的制备
青蒿200g,用10倍去离子水提取2次,筛网过滤(上海宜昌仪器纱筛厂,20目),滤液浓缩至1倍生药量,加入一定量95%乙醇醇沉,滤纸过滤,浓缩回收乙醇,过50nm陶瓷膜(厦门福美科技)浓缩至固含4.5%溶液,即得。
实施例5:青蒿提取物的制备
青蒿250g,用6倍50%乙醇60℃回流提取1次,提取1.5h,离心(5000rpm离心10min)过滤,滤液加入去离子水和甘油,其中甘油50%,余下用去离子水配制成固含3.5%溶液,即得。
实施例6:DNA损伤修护实验
本测试通过体外成纤维细胞模型,以γ-H2AX作为一种DNA损伤的生物标记指标,来评价DNA损伤作用。
1.细胞模型与主要试剂:
成纤维细胞(广东博溪生物科技有限公司);低糖DMEM培养液(博溪生物)、PBS(博士德)、H2O2(Sigma)、γH2A.X抗体(Abcam)、荧光染料(Takara)、多聚甲醛(国药)。
2.主要设备
CO2培养箱(Thermo,150i)、超净工作台(苏州安泰,SW-CJ-1F)、酶标仪(BioTek,Epoch)、荧光显微镜(Leica,DM2500)、正置显微镜(Olympus,BX53)。
3.实验方法:
3.1实验分组
3.2实验步骤
按1×105/孔的接种密度,接种成纤维细胞至6孔板,然后连续3天,每次加入含400μM H2O2的无血清培养基,刺激2h,加入正常培养基后孵育24h,然后进行5次传代,随后按80%~90%的铺板率,接种细胞至24孔细胞板,收样,进行各指标检测。
免疫荧光测试
1)接种:按80%~90%的铺板率接种细胞至24孔板,培养箱(37℃、5%CO2)中孵育24h。
2)收样:孵育24h后,弃液,1mL/孔PBS清洗三次,每孔加1mL 4%的多聚甲醛室温固定15min。
3)封闭:滴加山羊血清200μL/孔,室温封闭60min。
4)孵育一抗:弃掉山羊血清封闭液,滴加适当比例稀释后的一抗(200μL/孔)(山羊血清稀释),4℃孵育过夜。
5)孵育二抗:用PBS清洗3次/5min,滴加适当比例稀释后的荧光二抗(200μL/孔),室温避光孵育1h。
6)核染:用PBS清洗3次/5min,滴加Hochest33342(200μL/孔),室温孵育5min。
7)封片:用针头挑出爬片,在载玻片上滴加一滴抗淬灭剂并将爬片反放于载玻片上。
8)观察拍照:24h内荧光显微镜拍照。
4.结果统计分析
应用GraphPad Prism作图,结果表示为Mean±SD。各组间比较采用t-test统计分析。统计分析均为双尾。P<0.05认为具有显著差异,P<0.01认为具有极显著差异。
5.实验结果:
图1显示了荧光图片的结果(荧光显微镜Leica,型号:DM2500;放大倍数:20倍)。从荧光染色图片可见,与BC组相比,NC组的绿色荧光强度明显升高,与NC相比,而0.15%和0.9%实施例4青蒿提取物组的荧光强度均明显变弱了,说明γH2A.X蛋白降低了。(该实验,绿色荧光蛋白强度越高,表明γH2A.X蛋白水平越高)。
图2显示了γH2A.X数据结果的柱状图。用t-test方法进行统计分析时,与BC组相比,显著性以#表示,P值<0.05表示为#,P值<0.01表示为##;与NC组相比,显著性以*表示,P值<0.05表示为*,P值<0.01表示为**。
从定量数据图可见,与BC组相比,NC组的γH2A.X蛋白含量显著上升,说明本次测试刺激条件有效。与NC组相比,0.15%和0.9%实施例4青蒿提取物均能显著降低γH2A.X蛋白含量(p<0.01)。
因此,从实验结果可见,实施例青蒿提取物可以降低DNA损伤的标志物γH2A.X蛋白含量,说明具有减少DNA损伤即DNA损伤修护的良好作用。
本发明所述的青蒿提取物可以作为中间体原料或功效添加剂用于药品、保健食品或皮肤外用剂的制备,所述皮肤外用剂优选为化妆品组合物,包括但不限于面霜、乳液、啫喱、化妆水、精华液、面膜、眼霜、气雾(清洁泡)、喷雾、沐浴露和洗面奶等剂型的产品的制备,实施例1-5青蒿提取物,在皮肤外用剂中的重量百分比为0.0001%-20%(w/w)。优选的重量百分比为0.001%-10%(w/w)。更优选的重量百分比为0.001%-5%(w/w)。最优选的重量百分比为0.01%-5%(w/w)。
以下是实施例1-5获得青蒿提取物在皮肤外用剂中的具体应用例,以及这些剂型的配方和制备方法。具体应用例如下:
应用例1:胶囊的制备
取实施例1制备的青蒿提取物的固含溶液,浓缩至稠膏,加入麦芽糊精,混匀,制粒,装入胶囊,每粒装0.2g,制成1000粒,即得。
应用例2:中药制剂的制备
将实施例2制备的青蒿提取物的固含溶液,在室温下用超滤膜(200nm陶瓷膜),截留分子量大于30000,将经过超滤膜的超滤液(分子量小于30000)保存备用。在室温下用纳滤膜过滤分子量小于30000的超滤液,截留分子量大于300的浓缩液备用。将分子量大于300的浓缩液无菌冷冻干燥,制成冻干粉。将冻干粉制成胶囊和粉针剂,获得目标产物--用青蒿提取物制成的中药制剂。
应用例3:面霜的制备
应用例4:乳液的制备
应用例5:啫喱的制备
应用例6:化妆水的制备
应用例7:精华液的制备
应该例8:面膜的制备
应用例9:眼霜的制备
应用例10:气雾(清洁泡)的制备
应用例11:喷雾的制备
应用例12:沐浴露的制备
应用例13:洗面奶的制备
Claims (9)
1.青蒿提取物的DNA损伤修护应用,其中,所述青蒿提取物采用溶剂提取法制备。
2.如权利要求1所述的应用,其中,所述青蒿提取物的使用浓度至少为0.15%v/v。
3.如权利要求2所述的应用,其中,所述青蒿提取物的使用浓度为0.15%v/v至0.9%v/v。
4.如权利要求1所述的应用,其中,所述DNA损伤修护作用为降低DNA损伤的标志物γH2A.X蛋白含量。
5.青蒿提取物在制备具有DNA损伤修护作用的产品中的应用,其中所述产品是药品、保健食品或皮肤外用剂,所述青蒿提取物采用溶剂提取法制备。
6.如权利要求5所述的应用,其中,青蒿提取物在皮肤外用剂、药品及保健食品中的含量0.001-20重量%。
7.如权利要求5所述的应用,其中,青蒿提取物在皮肤外用剂、药品及保健食品中的含量0.01-5重量%。
8.如权利要求5所述的应用,其中,所述皮肤外用剂选自:面霜、乳液、啫喱、化妆水、精华液、面膜、眼霜、气雾清洁泡、喷雾、沐浴露、或洗面奶。
9.如权利要求5所述的应用,其中,所述DNA损伤修护作用为降低DNA损伤的标志物γH2A.X蛋白含量。
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