CN115518061A - 桉叶油醇及其组合物在制备治疗肾炎的药物中的应用 - Google Patents
桉叶油醇及其组合物在制备治疗肾炎的药物中的应用 Download PDFInfo
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Abstract
Description
技术领域
本发明属于医药领域,涉及治疗慢性肾病中药提取物和组合物及其制备工艺和医药用途,特征为桉叶油醇、含桉叶油醇提取物及其组合组治疗慢性肾病,其特征为通过抑制肾纤维化和炎症治疗慢性肾炎、糖尿病肾病、IgA肾炎、肾损伤等。
背景技术
慢性肾脏病(Chronic kidney disease,CKD)已成为全球公认的公共卫生问题,2020年2月,《柳叶刀》公布的数据表明,截止到2017年,全球慢性肾脏病患者人数达6.975亿人,其中,中国肾病人数达到1.323亿(肾病发病率9.5%)[1]。CKD是指各种原因导致的肾脏结构或功能异常,或出现蛋白尿或肾小球滤过率(Glomerular Filtration Rate,GFR)<60ml/min/1.73m2超过3个月的一类慢性疾病[2],如得不到很好的治疗将最终发展成为终末期肾病(End stage renal disease,ESRD)[3],然而目前尚无针对该疾病的特异性药物,给家庭和社会带来了沉重的经济负担[4]。肾纤维化是各种CKD发展为ESRD的共同通路,是肾功能丧失的重要原因之一。临床上如大手术、心力衰竭时肾功能的急性恶化、药物性肾毒性、败血症、肾后尿路梗阻以及其他原因引起的肾灌注不足(例如低血容量、全身血管扩张或中心静脉压)等发生后,导致损伤急性期后的纤维化、血管稀疏、肾小管丢失、肾小球硬化和慢性炎症[5]。尽管过去几年我们对慢性肾病的认识有了大幅度的提升,但目前疾病的具体机制仍未完全阐明,现代医学并无治疗肾损伤的特异性药物,多采用去除病因、维持内环境稳定、营养支持、处理并发症和血液净化治疗等[6]。
本发明在对大量的中药提取物及活性跟踪分离筛选的基础上首次发现:具有图1所示化学结构的桉叶油醇可以有效治疗各种慢性肾病,其特征为通过抑制肾纤维化和炎症治疗慢性肾炎、糖尿病肾病、IgA肾炎、肾损伤等。因此,我们大量采集了含有桉叶油醇的桉属、姜科等植物,发明了新的含量测定的方法的基础上,发明了含有桉叶油醇的植物提取的提取制备方法,并发现:所有含有桉叶油醇的植物提取物(桉叶油醇含量0.01%-100%)均具有显著的治疗作用。其治疗慢性肾病的作用机制可能与通过调控ECM受体蛋白质互相作用网络从而改善肾纤维化、炎症相关。
发明内容
本发明提供桉叶油醇及其组合物在制备治疗肾炎的药物中的应用。
本发明所述的应用,其特征为,所述治疗是通过抑制肾纤维化和炎症进行的。
本发明所述的应用,其特征为,所述肾炎选自:慢性肾炎、糖尿病肾病、IgA肾炎、肾损伤。
本发明所述的应用,其特征为,所述桉叶油醇组合物包括含桉叶油醇的中药提取物,不同种类含桉叶油醇的植物提取物的混合物,以及桉叶油醇,含桉叶油醇的中药提取物,不同种类含桉叶油醇的植物提取物的混合物加药用辅料做成的药物制剂。
本发明所述的应用,其特征为,所述中药选自桉属植物(拉丁学名:Eucalyptus L'Hér.)、姜科(拉丁学名:Zingiberaceae)植物。
本发明所述的应用,其特征为,所述姜科植物选自:爪哇白豆蔻,白豆蔻。
本发明所述的应用,其特征为,所述含桉叶油醇的中药提取物,其中桉叶油醇含量0.01%-100%。
本发明所述的应用,其特征为,所述含桉叶油醇的中药提取物,其中桉叶油醇含量10%以上。
本发明所述的应用,其特征为,所述含桉叶油醇的中药提取物,其中桉叶油醇含量50-99.9%。
本发明所述的应用,其特征为,所述含桉叶油醇的中药提取物为含桉叶油醇的白豆蔻提取物,其中桉叶油醇含量为>99%,81.0%,54.9%。
本发明进一步提供桉叶油醇含量测定方法,可准确地测定各植物提取物中桉叶油醇的含量:
供试品样品制备:精密称取提取物样品100mg左右,加入到10ml容量瓶中用乙酸乙酯定容至刻度;精密吸取100μl溶液加入到10ml容量瓶中用乙酸乙酯定容至刻度,即为供试品溶液。精密取1ml纯净水,加到顶空进样瓶,再精密加入供试品溶液100微升,压盖密封,轻轻摇匀,摇晃时不要里面的溶剂,不要溅到瓶盖,即得待测试供试样品。
桉叶油醇对照品样品制备:精密称取适量桉叶油醇加入到10ml容量瓶中用乙酸乙酯定容至刻度;精密吸取100μl溶液加入到10ml容量瓶中用乙酸乙酯定容至刻度,即为供试品溶液。精密取1ml纯净水,加到顶空进样瓶,再精密加入供试品溶液100微升,压盖密封,轻轻摇匀,摇晃时不要里面的溶剂,不要溅到瓶盖,即得待测试桉叶油醇对照品样品。
顶空进样及气相色谱条件:顶空瓶平衡温度90℃,平衡时间30min,进样量1mL。毛细管色谱柱:DB-ALCI(30×0.320mm×1.8μm)。程序升温条件:60℃保持1分钟,5℃/min到205℃,然后25℃/min到230℃保持4分钟,总运行时间35分钟。载气:高纯度氮气;柱温箱初始温度:60℃;进样口温度:220℃;检测器温度为250℃;隔垫吹扫流量:3mL/min;进样模式:分流,分流比10:1,分流流量:4mL/min。
含量计算方法:积分获得桉叶油醇对照品GC色谱中色谱峰面积和样品GC色谱中桉叶油醇色谱峰面积,利用外标一点法、外标两点法、外标三点法或者标准曲线法,计算样品中桉叶油醇的含量。
本发明进一步提供含桉叶油醇提取物的提取方法,其特征为:
方法1:水蒸气直接通过桉属、姜科等植物干燥的药材或药材粉末,收集馏出液,冷却油水分离、分离出上层挥发油,即得;
方法2:桉属、姜科等植物药材或药材粉末加入5-30倍量水,加热蒸出馏出液,冷却油水分离、分离出上层挥发油,即得;
方法3:桉属、姜科等植物药材或药材粉末加入5-30倍量水,利用挥发油提取器,加热蒸出馏出液,冷却油水分离、分离出上层挥发油,即得。
方法4:桉属、姜科等植物药材或药材粉末用水、乙醇-水(任意体积比)的溶剂回流提取(或者渗漉提取),回收溶剂,干燥即得。
本发明在国内外未见报道,其成果对开发慢性肾病治疗药物具有重大的现实意义。
附图说明
图1桉叶油醇的化学结构
图2.桉叶油醇动物实验的血液生化测试结果(CON:空白,MOD:模型,EUC:桉叶油醇,LOS:氯沙坦钾片)注:与CON相比##p<0.01,###p<0.001,与MOD相比*p<0.05,**p<0.01,***p<0.001。
图3.含桉叶油醇的白豆蔻提取物动物实验的血液生化测试结果(CON:空白,MOD:模型,BDK:含桉叶油醇的白豆蔻提取物,LOS:氯沙坦钾片)注:与CON相比##p<0.01,###p<0.001,与MOD相比*p<0.05,**p<0.01,***p<0.001。
图4.桉叶油醇动物实验的氧化应激指标测试结果(CON:空白,MOD:模型,EUC:桉叶油醇,LOS:氯沙坦钾片)。注:与CON相比###p<0.001,与MOD相比*p<0.05,**p<0.01,***p<0.001。
图5.含桉叶油醇的白豆蔻提取物动物实验的氧化应激指标测试结果(CON:空白,MOD:模型,BDK:含桉叶油醇的白豆蔻提取物,LOS:氯沙坦钾片)。注:与CON相比###p<0.001,与MOD相比*p<0.05,**p<0.01,***p<0.001。
图6.桉叶油醇动物实验的炎症因子测试结果(CON:空白,MOD:模型,EUC:桉叶油醇,LOS:氯沙坦钾片)。注:与CON相比###p<0.001,与MOD相比*p<0.05,**p<0.01,***p<0.001。
图7.含桉叶油醇的白豆蔻提取物动物实验的炎症因子指标测试结果(CON:空白,MOD:模型,BDK:含桉叶油醇的白豆蔻提取物,LOS:氯沙坦钾片)。注:与CON相比###p<0.001,与MOD相比*p<0.05,**p<0.01,***p<0.001。
图8.桉叶油醇动物实验的肾组织病理HE染色结果(CON:空白,MOD:模型,EUC:桉叶油醇,LOS:氯沙坦钾片)。注:与CON相比###p<0.001,与MOD相比*p<0.05,***p<0.001。
图9.含桉叶油醇的白豆蔻提取物动物实验的肾组织病理HE染色结果(CON:空白,MOD:模型,BDK:含桉叶油醇的白豆蔻提取物,LOS:氯沙坦钾片)。注:与CON相比###p<0.001,与MOD相比*p<0.05,***p<0.001。
图10.桉叶油醇动物实验的肾组织病例Masson染色结果(CON:空白,MOD:模型,EUC:桉叶油醇,LOS:氯沙坦钾片)注:与CON相比###p<0.001,与MOD相比*p<0.05,***p<0.001。
图11.含桉叶油醇的白豆蔻提取物动物实验的肾组织病理Masson染色结果(CON:空白,MOD:模型,BDK:含桉叶油醇的白豆蔻提取物,LOS:氯沙坦钾片)。注:与CON相比###p<0.001,与MOD相比*p<0.05,***p<0.001。
图12.桉叶油醇动物实验的血液生化测试结果(CON:空白,MOD:模型,EUC:桉叶油醇,LOS:氯沙坦钾片)注:与CON相比###p<0.001,与MOD相比*p<0.05,**p<0.05,***p<0.001。
图13.含桉叶油醇的白豆蔻提取物动物实验的血液生化测试结果(CON:空白,MOD:模型,BDK:含桉叶油醇的白豆蔻提取物,LOS:氯沙坦钾片)注:与CON相比###p<0.001,与MOD相比*p<0.05,**p<0.05,***p<0.001。
图14.桉叶油醇动物实验的肾组织病例HE染色结果(CON:空白,MOD:模型,EUC:桉叶油醇,LOS:氯沙坦钾片)注:与CON相比###p<0.001,与MOD相比*p<0.05,**p<0.01。
图15.含桉叶油醇的白豆蔻提取物动物实验的肾组织病例HE染色结果(CON:空白,MOD:模型,BDK:含桉叶油醇的白豆蔻提取物,LOS:氯沙坦钾片)注:与CON相比###p<0.001,与MOD相比*p<0.05,**p<0.01。
图16.桉叶油醇动物实验的肾组织病例Masson染色结果(CON:空白,MOD:模型,EUC:桉叶油醇,LOS:氯沙坦钾片)。注:与CON相比###p<0.001,与MOD相比*p<0.05,**p<0.01。
图17.含桉叶油醇的白豆蔻提取物动物实验的肾组织病例Masson染色结果(CON:空白,MOD:模型,BDK:含桉叶油醇的白豆蔻提取物,LOS:氯沙坦钾片)。注:与CON相比###p<0.001,与MOD相比**p<0.01,***p<0.001。
图18.含桉叶油醇的白豆蔻提取物动物实验的炎症因子检测结果(CON:空白,MOD:模型,BDK:含桉叶油醇的白豆蔻提取物,LOS:氯沙坦钾片)。注:与CON相比##p<0.01,###p<0.001,与MOD相比**p<0.01,***p<0.001。
图19桉叶油醇的GC色谱图(Rt=10.607min为桉叶油醇色谱峰,桉叶油醇含量>99%)
图20含桉叶油醇桉叶提取物的GC色谱图(Rt=10.611min为桉叶油醇色谱峰,桉叶油醇含量81.0%)
图21含桉叶油醇白豆蔻提取物的GC色谱图(Rt=10.613min为桉叶油醇色谱峰,桉叶油醇含量为54.9%)
具体实施方式
下面仅以实施例的方式结合附图对本发明作进一步的说明。
实施例1桉叶油醇和含桉叶油醇植物提取物治疗大鼠IgA肾病的作用发现
实验动物模型的建立:运用牛血清白蛋白(BSA)+脂多糖(LPS)+四氯化碳(CCl4)方法造就IgA肾病模型:以蒸馏水配制免疫原BSA,隔天早晨灌胃4ml/kg,持续8周;皮下注射蓖麻油0.3ml+CCl4 0.1ml,每周1次,持续9周;以生理盐水配制0.025%LPS,于第6、8、10、12周尾静脉注射0.2ml/只;于此同时造就瘀热模型,复合为IgA肾病大鼠模型:于第9周开始隔天灌服25%干姜水10ml/kg,持续4周。空白组以等量蒸馏水灌胃,等量生理盐水皮下或尾静脉注射,生存温度为正常室温(常年22℃)。第12周末造模结束。
实验分组:所有大鼠适应性喂养l周,造模前两次尿蛋白定性试验均呈阴性(试纸条法)。将入选的70只SD大鼠以随机数字表法分为空白组、模型组、中药阳性对照组(雷公藤多苷)、西医药阳性对照组(泼尼松)、桉叶油醇(桉叶油醇含量>99%,GC测定图谱见图19)高中低剂量组、含桉叶油醇植物提取物(桉树叶挥发油提取物,含桉叶油醇80.1%)组。
给药方法:模型组、对照组及给药组均运用复合造模法建立IgA肾病实验动物模型,药物治疗组和阳性对照组自第13周起灌胃,每天早1次,连续5周;空白组及模型组在第13周起给予相应等量溶剂灌胃。给药期间所有大鼠均予标准饮食及标准室温。
标本采集:在实验结束后,用代谢笼收集24h内大鼠尿液,收集24h内大鼠尿液,分装后新鲜尿液一部分用于送检测定尿生化指标;腹主动脉收集大鼠血液4000r/min离心15min,取上清液血清放在-20℃,供测血生化指标。处死大鼠,取其两侧肾脏,生理盐水冲洗干净后,滤纸擦干,拍照称重;一部分右肾固定在10%中性福尔马林中,固定供病理变化(HE染色、PAS染色、IgA免疫荧光)组织切片及免疫荧光、免疫组化石蜡切片用;另一部分放入液氮速冻后,放入-80℃,为PCR、WB实验用。
评价结果:
1)尿液检测结果
对所得24h尿液进行检测发现,IgA肾病大鼠,24小时尿蛋白含量增高,尿肌酐,和尿素氮含量也明显增高。经过药物治疗后发现其尿蛋白、尿素氮、尿肌酐含量有所下降。结果见表1。
表1各组大鼠尿蛋白、血清尿素氮及血清肌酐测定结果
注:与模型组相比**p<0.01,*p<0.05;与正常组相比##P<0.01。
2)血清常规检测结果
血清检测结果表明,IgA肾病模型大鼠血清CR,BUN,ALT,AST,CHO相较于空白对照组均有所增加,治疗后均有所改善(P<0.05)。各结果见表2。
表2血清CR,BUN,ALT,AST,CHO测定结果
注:与模型组相比*P<0.05;与正常组相比#P<0.05。
3)IL-1β、IL-6、TNF-α、IgA检测结果
对血清中IL-1β、IL-6、TNF-α、IgA含量检测结果显示,IgA肾病模型大鼠IL-1β、IL-6、TNF-α、IgA含量均显著增高,而药物治疗各组及阳性药组均有所下降,结果见3。
表3 IL-1β、IL-6、TNF-α、IgA测定结果
注:与模型组相比**p<0.01,*p<0.05;与正常组相比##P<0.01。
实施例2桉叶油醇和含桉叶油醇植物提取物治疗腺嘌呤所致大鼠慢性肾病的作用发现
实验动物模型的建立:取SD大鼠,除空白对照组外,其余用腺嘌呤按(300mg/kg/d)剂量用蒸馏水配成混悬液每日固定时间灌胃,连续4周,自由饮水与进食,可形成大鼠具有肾纤维化现象的慢性肾病CKD模型。
实验分组:所有大鼠适应性喂养l周,造模前两次尿蛋白定性试验均呈阴性(试纸条法)。将入选的SD大鼠以随机数字表法分为空白组、模型组、阳性对照组(氯沙坦钾片)、桉叶油醇(桉叶油醇含量>99%,GC测定图谱见图19)高中低剂量组、含桉叶油醇植物提取物(白豆蔻提取物,含桉叶油醇55.2%)组。
给药方法:从造模后一天开始给药,连续给药28天。将造模成功的老鼠分为模型、药物治疗组。具体给药剂量等情况见下表。除空白、模型组以溶剂灌胃,药物治疗各组以桉叶油醇或者含桉叶油的白豆蔻提取物灌胃,阳性药组以氯沙坦灌胃。
标本采集:在实验结束后,用代谢笼收集24h内大鼠尿液,收集24h内大鼠尿液,分装后新鲜尿液一部分用于送检测定尿生化指标;腹主动脉收集大鼠血液4000r/min离心15min,取上清液血清放在-20℃,供测血生化指标。处死大鼠,取其两侧肾脏,生理盐水冲洗干净后,滤纸擦干,拍照称重;一部分右肾固定在10%中性福尔马林中,固定供病理变化(HE染色、PAS染色、IgA免疫荧光)组织切片及免疫荧光、免疫组化石蜡切片用;另一部分放入液氮速冻后,放入-80℃,为PCR、WB实验用。
评价结果:
1)血液生化指标:造模4周肌苷、尿素氮均升高,证明造模成功,继续给药治疗4周,桉叶油醇治疗组和含有桉叶油醇的桉树叶提取物治疗组肌苷、尿素氮均显著下降,与模型组有显著性差异。(见图2和图3)
2)氧化应激指标:氧化应激指标检测发现模型组丙二醛(MDA)含量升高、过氧化物歧化酶(SOD)表达降低、还原型谷胱甘肽(GSH-px)含量下降,桉叶油醇治疗组和含有桉叶油醇的桉树叶提取物治疗组均可显著改善氧化应激指标,与模型组有显著性差异。(见图4和图5)
3)炎症因子检测:模型组炎症因子IL-1β、IL-6、TNF-α表达均显著升高,桉叶油醇治疗组和含有桉叶油醇的桉树叶提取物治疗组均可显著改善这些炎症因子表达升高,与模型组有显著性差异。(见图6和图7)
4)肾脏病理HE染色:对肾脏组织进行了病理学检测。经HE染色后发现,模型组大鼠肾小球会出现膨大或萎缩的现象,且肾小管管腔会扩大,桉叶油醇和含桉叶油醇的白豆蔻提取物可显著改善其病理改变。(见图8和图9)
5)肾脏病理Masson染色:Masson染色可以检测肾纤维化情况,对肾脏组织进行了Masson染色后发现,模型组大鼠出现显著的肾纤维化现象,桉叶油醇和含桉叶油醇的白豆蔻提取物可显著改善其肾纤维化。(见图10和图11)
实施例3桉叶油醇和含桉叶油醇植物提取物治疗5/6肾切除所致大鼠慢性肾病的作用发现
实验动物模型的建立:大鼠麻醉后,左侧背部除毛,医用酒精消毒,铺洞巾后逐层切开皮肤、筋膜,钝性剥离腹壁及肌肉,暴露左肾,轻轻剥离肾包膜和肾上腺,夹闭肾蒂,切除上、下两极各约1/3肾实质。立即用明胶海绵按压切口止血并打开肾蒂,直至出血停止,小心将残肾回纳至腹腔,逐层分别缝合肌肉和皮肤,手术及缝合过程注意消毒。缝合后饲养1周,同样的方法麻醉后,右侧背部除毛,医用酒精消毒后切开皮肤和肌肉,剥离右肾的肾包膜和肾上腺后,用医用缝合线结扎肾蒂,切除整个右肾,逐层缝合并消毒。两步手术间隔1周,一共切除了约5/6肾脏,残余的左肾仅占双侧肾重的1/6。注射青霉素,以防止左右肾切除术后的感染。假手术空白组也进行同期两次手术,取出肾脏,剥离肾包膜,放回肾脏,缝合伤口。
实验分组:所有大鼠适应性喂养l周,造模前两次尿蛋白定性试验均呈阴性(试纸条法)。将入选的SD大鼠以随机数字表法分为空白组、模型组、阳性对照组(氯沙坦钾片)、桉叶油醇(桉叶油醇含量>99%,GC测定图谱见图19)高中低剂量组、含桉叶油醇植物提取物(白豆蔻提取物,含桉叶油醇55.2%)组。
给药方法:从造模后一天开始给药,连续给药28天。将造模成功的老鼠分为模型、药物治疗组。具体给药剂量等情况见下表。除空白、模型组以溶剂灌胃,药物治疗各组以桉叶油醇或者含桉叶油的白豆蔻提取物灌胃,阳性药组以氯沙坦灌胃。
标本采集:在实验结束后,用代谢笼收集24h内大鼠尿液,收集24h内大鼠尿液,分装后新鲜尿液一部分用于送检测定尿生化指标;腹主动脉收集大鼠血液4000r/min离心15min,取上清液血清放在-20℃,供测血生化指标。处死大鼠,取其两侧肾脏,生理盐水冲洗干净后,滤纸擦干,拍照称重;一部分右肾固定在10%中性福尔马林中,固定供病理变化(HE染色、PAS染色、IgA免疫荧光)组织切片及免疫荧光、免疫组化石蜡切片用;另一部分放入液氮速冻后,放入-80℃,为PCR、WB实验用。
评价结果:
1)血液生化指标:造模4周肌苷、尿素氮均升高,证明造模成功,继续给药治疗4周,治疗组肌苷、尿素氮均显著下降,与模型组有显著性差异。(见图12和图13)
2)HE染色:对肾脏组织进行了病理学检测。经HE染色后发现,模型组大鼠肾小球会出现膨大或萎缩的现象,且肾小管管腔会扩大,桉叶油醇和含桉叶油醇的白豆蔻提取物可显著改善其病理改变。(见图14和图15)
3)Masson染色:Masson染色可以检测肾纤维化情况,对肾脏组织进行了Masson染色后发现,模型组大鼠出现显著的肾纤维化现象,桉叶油醇和含桉叶油醇的白豆蔻提取物可显著改善其肾纤维化。(见图16和图17)
4)炎症因子检测:与空白对照组相比,模型组大鼠肾组织中IL-1β、IL-6、TNF-α蛋白表达显著增高,含桉叶油醇的白豆蔻提取物可显著改善炎症因子升高,表明其可以通过抑制肾组织炎症反应,来减轻肾损伤,并保护肾功能。(见图18)
实施例4含桉叶油醇桉叶提取物的制备和桉叶油醇含量测定
(1)提取:水蒸气直接通过蓝桉树干燥叶药材粉末1.0Kg,收集馏出液,冷却油水分离、分离出上层挥发油,得提取物34.7ml。
(2)样品中桉叶油醇的含测定:利用桉叶油醇为对照品,按照本发明GC含量测定方法,测定发现桉叶油醇含量为80.1%(色谱图见图20)。
实施例5含桉叶油醇白豆蔻提取物的制备和桉叶油醇含量测定
(1)提取:白豆蔻干燥果实1.0Kg捣碎,用10倍体积水浸泡2h,用水蒸气蒸馏提取装置,提取挥发油8小时,收集馏出液,冷却油水分离、分离出上层挥发油,得提取物49.2g。
(2)样品中桉叶油醇的含测定:利用桉叶油醇为对照品,按照本发明GC含量测定方法,测定发现桉叶油醇含量为54.9%。(色谱图见图21)。
Claims (10)
1.桉叶油醇及其组合物在制备治疗肾炎的药物中的应用。
2.根据权利要求1所述的应用,其特征为,所述治疗是通过抑制肾纤维化和炎症进行的。
3.根据权利要求1所述的应用,其特征为,所述肾炎选自:慢性肾炎、糖尿病肾病、IgA肾炎、肾损伤。
4.根据权利要求1所述的应用,其特征为,所述桉叶油醇组合物包括含桉叶油醇的中药提取物,不同种类含桉叶油醇的植物提取物的混合物,以及桉叶油醇,含桉叶油醇的中药提取物,不同种类含桉叶油醇的植物提取物的混合物加药用辅料做成的药物制剂。
5.根据权利要求4所述的应用,其特征为,所述中药选自桉属植物(拉丁学名:Eucalyptus L'Hér.)、姜科(拉丁学名:Zingiberaceae)植物。
6.根据权利要求5所述的应用,其特征为,所述姜科植物选自:爪哇白豆蔻,白豆蔻。
7.根据权利要求4所述的应用,其特征为,所述含桉叶油醇的中药提取物,其中桉叶油醇含量0.01%-100%。
8.根据权利要求7所述的应用,其特征为,所述含桉叶油醇的中药提取物,其中桉叶油醇含量10%以上。
9.根据权利要求8所述的应用,其特征为,所述含桉叶油醇的中药提取物,其中桉叶油醇含量50-99.9%。
10.根据权利要求9所述的应用,其特征为,所述含桉叶油醇的中药提取物为含桉叶油醇的白豆蔻提取物,其中桉叶油醇含量为>99%,81.0%,54.9%。
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