CN117425485A - 山竹果壳萃取物用于制备治疗褥疮的药物的用途 - Google Patents
山竹果壳萃取物用于制备治疗褥疮的药物的用途 Download PDFInfo
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- CN117425485A CN117425485A CN202180096839.8A CN202180096839A CN117425485A CN 117425485 A CN117425485 A CN 117425485A CN 202180096839 A CN202180096839 A CN 202180096839A CN 117425485 A CN117425485 A CN 117425485A
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Abstract
本发明提供一种组合物用于制备治疗褥疮的药物的用途,其中所述组合物包含有效剂量的山竹果壳萃取物。
Description
技术领域
本发明涉及一种组合物用于制备治疗褥疮的药物的用途。
背景技术
皮肤是人体最大的器官,皮肤疾病也是种类众多,皮肤疾病可能为急性(持续仅数分钟至数小时)或慢性的状况,其可能影响个体数天、数月、数年甚至一生,皮肤疾病可能为真菌性的、细菌性的、或病毒性的病况,或可能为非-感染性的、免疫性的反应,例如带有或不带有过敏原的发炎反应,或可能为特发性病。因此,症状可能为各式各样且可能从温和的痒感、发红与肿胀至严重的长脓与开放性疼痛,例如伤害性的溃烂,皮肤疾病可能实质影响个体生活的品质。
褥疮,也称为压疮,是皮肤和下层组织的局部损伤,通常发生在骨头突出处,例如脚后跟、臀部和尾骨,通常是由于长期受压引起的。
褥疮的危险因子通常被认为与糖尿病、身体缺陷、认知障碍、神经衰弱或年龄较大有关。褥疮还会引起一些并发症,例如蜂窝性组织炎、骨骼和关节感染、癌症和败血症。
在临床方面,2019年国际循证临床实践指南对治疗褥疮的策略提出了建议,包括使用卧床休息、压力重新分配支撑面、营养支持、重新定位、伤口护理和生物物理制剂。然而,该指南缺乏用于治疗褥疮的适当治疗剂的教导。
山竹果已被研究应用于乳癌的预防及肌肉相关疾病等领域,亦被开发作为日常生活的营养补充剂及化妆品等,同时也被应用于治疗急性肝炎、肝纤维化及预防肝硬化的用途。
Matsumoto等人亦研究由山竹果壳中纯化出α-倒捻子素(mangostin)、β-倒捻子素、γ-倒捻子素、及甲基-β-倒捻子素,并研究该化合物对细胞周期各阶段的抑制作用,显示该化合物具有抗细胞增殖效果及抗肿瘤效应(Bioorg.Med.Chem.2005,13,6064-6069)。
发明内容
本发明提供一种组合物用于制备治疗皮肤疾病的医药组合物的用途。
具体而言,本发明提供一种组合物在制备治疗褥疮的药物中的用途,其中所述组合物包含有效剂量的山竹果壳萃取物。所述药物亦可用于局部治疗、医疗器材或精准治疗的用途。
本发明提供一种治疗个体褥疮的方法,包含给予一种包含有效剂量的山竹果壳萃取物的医药组合物。
山竹果壳包含较软的内果壳和较硬的外果壳。
在一个较佳实施方式中,所述山竹果壳是利用溶剂进行萃取,所述萃取溶剂选自由甲醇、乙醇、正丙醇、2-丙醇、正丁醇、丙酮、乙酸乙酯及水所组成的群组。
在另一较佳实施方式中,所述山竹果壳萃取物包含山竹果壳水萃取物和/或山竹果壳酒精萃取物。
在一较佳实施方式中,所述山竹果壳萃取物为山竹果壳水萃取物。
在另一较佳实施方式中,所述山竹果壳萃取物为山竹果壳酒精萃取物。
在一较佳实施方式中,所述山竹果壳包含山竹果壳的外果壳/内果壳和/或山竹果壳的全果壳。
在另一较佳实施方式中,所述山竹果壳是山竹果壳的外果壳。
在一较佳实施方式中,本发明的组合物可为口服或非经肠胃道制剂,所述非经肠胃道制剂可为外用制剂,所述外用制剂可为乳霜、乳膏、软膏、凝胶、洗剂或贴布。
在一较佳实施方式中,本发明的山竹果壳萃取物包含α-倒捻子素(α-mangostin)及γ-倒捻子素(γ-mangostin)。
在另一较佳实施方式中,本发明的山竹果壳水萃取物包含α-倒捻子素(α-mangostin)及γ-倒捻子素(γ-mangostin)。
在又一较佳实施方式中,本发明的山竹果壳酒精萃取物包含α-倒捻子素(α-mangostin)及γ-倒捻子素(γ-mangostin)。
本发明中所称“有效剂量”是投予至个体时达到有效结果的剂量,或者是,在体内或体外拥有所需活性的剂量。在伤口愈合的情况中,与未治疗相比,有效的临床结果包括减缓伤口严重性、及/或延长个体寿命、及/或提高个体生活品质。投予至个体的精确化合物量将视疾病或症状的类型与严重性以及个体特性来决定,个体特性例如个体的一般健康状况、年龄、性别、体重与对药物的耐受性,亦视伤口严重性与类型来决定。本领域技术人员依据这些及其他因素将能够决定适当的剂量。
在一实施方式中,本发明的山竹果壳萃取物的有效剂量为0.5%(w/w)至10%(w/w);在一较佳实施方式中,本发明的山竹果壳萃取物的有效剂量为1%(w/w)至8%(w/w);在最佳实施方式中,该山竹果壳萃取物的有效剂量为1.25%(w/w)至5%(w/w)。
本发明的医药组合物可调配成各种形式的口服或肠胃外制剂。口服制剂可调配成固体制剂,例如粉末、颗粒、锭剂、胶囊等,或调配成液体制剂,例如悬浮液、乳液、糖浆等。肠胃外制剂可被调配成外用制剂,例如乳霜、软膏、凝胶、洗剂、贴布等,或吸剂、气溶胶、栓剂等。
本发明的医药组合物可包含医药上可接受的赋形剂,尤其是可进一步包含预定的溶剂或油类,如果需要,并可进一步包含分散剂。
本发明所用溶剂的实例包括但不限于水、乙醇、异丙醇、1,3-丁二醇、丙二醇、甘油等。
可用于本发明的油类的实例选自由玉米油、芝麻油、亚麻油、棉花籽油、大豆油、花生油、单-甘油酯、二-甘油酯、三-甘油酯、矿物油、深海鱼鲛油角鲨烯(Squalene)、荷荷巴油(jojobaoil)、橄榄油、月见草油、琉璃苣油(BorageOil)、葡萄籽油、椰子油、葵花籽油、乳油木果脂及其任意组合所组成的群组,但不以此为限。
溶剂及油类可单独使用或使用其任何的组合。
有益的分散剂实例可包含卵磷脂、有机单甘油酯、山黎醇脂肪酸酯、聚氧乙烯脂肪酸酯、硬脂酸山梨醇酐酯等,但不以此为限。这些原料亦可单独使用或使用其任何的组合。
若需要,组合物可进一步包含额外原料,例如抗微生物剂或防腐剂。
同时,已知活性成分可与组合物同时使用,只要其在本发明组合物的医药活性上不具有反效果即可。例如,如神经酰胺(ceramide)的润肤霜通常作为已知异位性皮肤炎药剂,或液体成分、例如氢羟肾上腺皮质素的类固醇、维生素A衍生物,例如棕榈酸维生素A及/或生育酚等可与组合物一同使用。
当该医药组合物作为外用制剂时,可使用适当的皮肤外用制剂作为基础原料,水性溶液、非水性溶剂、悬浮液、乳液或冻干制剂等均可被使用,并依已知方法消毒。
在本发明提供或施用的组合物的实际应用中,剂量可根据各种因素决定,例如给药途径、年龄、性别、及患者体重、与疾病严重性及作为活性成分的剂型。
在本发明组合物可为食品或化妆品组合物的情况,可通过适当添加至少一种食品滋养或美容可接受性载剂而制备该组合物。
食品组合物可用于或添加于例如健康食品。如本文中所使用,“健康食品”一词表示一种与一般食品相较下具有增进功能的含本发明组合物的食品。健康食品可通过添加该组合物至一般食品而制备,或通过胶囊化、粉末化或悬浮液化制备。
化妆品组合物可以其本身或与其他化妆品成分一同添加,或可根据其他已知方法适当使用。化妆品包括须后水(aftershaves)、化妆水、乳霜、面膜及彩妆,但不以此为限。
化妆品组合物可调配成各种组合物形式,例如凝胶、乳霜、软膏等。凝胶、乳霜及软膏形式的组合物可根据组合物的形式使用已知方法,通过添加已知软化剂、乳化剂及增稠剂或其他技术中已知的原料而适当地制备。
凝胶形式的组合物例如可通过添加例如三甲基醇丙烷、聚乙二醇及甘油的软化剂、例如丙二醇、乙醇及异鲸蜡醇的溶剂、及纯水制备。
乳霜形式的组合物的制备例如可通过添加脂肪醇,例如硬脂醇、豆蔻醇、山嵛醇(behenylalcohol)、花生醇、异十八醇及异鲸蜡醇;乳化剂,例如脂类,例如卵磷脂、磷脂酰胆碱、磷脂酰乙醇胺、磷脂丝胺酸、磷酸脂肌醇及其衍生物、硬脂酸甘油酯、棕榈酸山梨醇酯、硬脂酸山梨醇酯等;天然脂肪及油类,例如酪梨油、杏仁油、巴巴树油(babassuoil)、琉璃苣油、山茶花油等;脂质组合物,例如神经酰胺、胆固醇、脂肪酸、植物鞘胺醇、卵磷脂等;溶剂,例如丙二醇等;及纯水。
软膏形式的组合物的制备可例如通过添加软化剂、乳化剂及蜡,例如微晶蜡、石蜡、地蜡(ceresin)、蜜蜡、鲸蜡、凡士林等。
另一方面,本发明提供一种使用该组合物制备用于治疗或缓解褥疮的药剂的方法。如本文中所使用,“治疗或缓解”一词意指当病患使用药剂时,指停止或延迟疾病的病程或症状。
附图说明
图1显示了本发明的动物实验流程图。(A)图为实验时间轴;(B)图为小鼠褥疮模型的建立。
图2为第3阶段褥疮在治疗7天后的面积。对照组:未给药;安慰剂组:赋形剂;全果壳萃取物:有效剂量为0.625%(w/w)、1.25%(w/w)、2.5%(w/w)和5%(w/w)的Xantho样品组。结果以平均值±标准误差(SEM)显示之,*表示P<0.05,**表示P<0.01;统计方式:学生T检验。
图3显示第3阶段褥疮在治疗7天后的图像。对照组:未给药;安慰剂组:赋形剂;全果壳萃取物:有效剂量为0.625%(w/w)、1.25%(w/w)、2.5%(w/w)和5%(w/w)的Xantho样品组。
图4显示为小鼠皮肤的组织学评估,其结果显示,与安慰剂组相比,2.5%(w/w)全果壳萃取物有显著的变化。*表示P<0.05,**表示P<0.01,***表示P<0.001;统计方式:学生T检验;(A)图为发炎的评分;(B)图为再上皮化的评分;(C)图为肉芽组织生成程度的评分;(D)图为血管新生的评分。对照组:未给药;安慰剂组:赋形剂;2.5%:2.5%(w/w)的全果壳萃取物。
图5为第3阶段褥疮在治疗7天后的面积。对照组:未给药;安慰剂组:赋形剂;山竹果壳萃取物:2.5%(w/w)有效剂量的Xantho样品组;内:内果壳萃取物;外:外果壳萃取物;全:全果壳萃取物。结果以平均值±标准误差(SEM)显示之,*表示P<0.05;统计方式:学生T检验。
图6显示第3阶段褥疮在治疗7天后的图像。对照组:未给药;安慰剂组:赋形剂;山竹果壳萃取物:2.5%(w/w)有效剂量的Xantho样品组;内:内果壳萃取物;外:外果壳萃取物;全:全果壳萃取物。
具体实施方式
以下实施方式是非限制性的,仅代表本发明的各个方面和特征。
实验例
医药组合物的制备
山竹果壳萃取物是根据美国专利US10383906B2所记载的方法所制备。
简单来说,取山竹果壳,将果壳干燥至50%~95%,以溶剂(如水或10%~95%的酒精)进行萃取,浓缩取得山竹果壳萃取物。
将山竹果壳的外果壳及内果壳分离,分别将山竹果壳外果壳及山竹果壳内果壳干燥至50%~95%,以溶剂(如水或10%~95%的酒精)进行萃取,浓缩取得山竹果壳外果壳萃取物及山竹果壳内果壳萃取物。
分别将山竹果全果壳的酒精及水萃取物、山竹果壳内、外果壳的酒精及水萃取物制成不同浓度的乳膏或软膏。该些山竹果壳萃取物在这本发明中被命名为”Xantho样品组”。
动物实验
本发明的动物实验选用7周龄的BALB/c小鼠(购自LESCOBiotech),体重为24~30g,经兽医检疫1周后进入饲养室。饲养室温度设定为21±2℃,湿度设定为30%~70%,环境设定为12/12小时明暗循环,不限量供应食物和水。
本发明的动物实验流程图如图1A所示。小鼠褥疮模型是根据Stadler等人描述的方法稍作修改后所建立的。首先使用异氟醚和O2镇静小鼠约50-60秒,并将小鼠背毛剃光,使用模板来标记位置,以确保在每只小鼠上所放置的磁铁的位置一致。接着,小鼠背部皮肤被夹在两个直径为12毫米、厚度为5毫米、磁力为1000G的圆形陶瓷磁铁(ceramicmagneticplates)之间(见图1B)。
于每只小鼠中以三个缺血-再灌注(IR)循环来启动褥疮形成。单个缺血-再灌注循环包括6小时的磁铁放置时间,然后是18小时的释放或休息时间。在IR循环期间,动物没有被固定、麻醉或以其他方式处理。
所有的小鼠均被允许随意进食和饮水。将36只小鼠随机分为6组(每组6只小鼠),分别为:未给药(标记为对照组)、安慰剂治疗的赋形剂组(标记为安慰剂)和四个以有效剂量为0.625%(w/w)、1.25%(w/w)、2.5%(w/w)、5%(w/w)的山竹果全果壳萃取物治疗的Xantho样品组(标记为全果壳萃取物)。在第3阶段褥疮形成后,每天给予各种剂量的山竹果全果壳萃取物处理伤口(40.25mg/cm2),并持续7天,并在第0、4和7天观察几个参数,包括:溃疡愈合、体重、食物和水的摄入量。各组的伤口面积均进行拍照,并以ImageJ软件(ImageJFiji,USA)进行分析,并计算平均溃疡分期和标准偏差。溃疡的分级以在临床实践中广泛使用的标准化分级量表进行分级,如表1所示,皮肤颜色和皮肤完整性的变化按0-4的等级分级,其中0分代表完整的正常皮肤,4分代表皮肤和皮下组织全层缺失和/或疤痕形成的病变。
表1
标准化褥疮分级量表
组织病理学
每只小鼠的皮肤组织都以10%磷酸盐缓冲的福尔马林(phosphate-bufferedformalin)中固定,然后包埋在石蜡块中。将5毫米厚的石蜡包埋组织切片安装在载玻片上,用蒸馏水再水化,并用苏木精(hematoxylin)和伊红(eosin)染色。作为组织学评估的一部分,所有载玻片均使用蒙面载玻片(maskedslides),并由不了解先前治疗的病理学家在显微镜下,以50倍放大倍数(LEICADM2700M,美国)进行评估。测量的参数是发炎程度、上皮再生程度、肉芽组织生成程度和血管新生程度。组织学评分系统如表2所示。
表2
统计分析
统计结果以平均值±标准误差(SEM)显示,*表示P<0.05,**表示P<0.01。统计分析系使用GraphPadPrism(8.0版)通过Dunnett事后检验(Dunnett’spost-hoctest)进行单向方差分析。统计显著性的P值表示为*表示P<0.05,**表示P<0.01和***表示P<0.001。
结果
治疗7天后,给予有效剂量为1.25%(w/w)、2.5%(w/w)和5%(w/w)的全果壳萃取物使得第3阶段褥疮溃疡的体积显著减小(见图2和图3)。特别是,给予有效剂量为2.5%(w/w)的全果壳萃取物的组别显示出更好的效果。与对照组相比,*表示P<0.05,**表示P<0.01。
比较安慰剂组与用2.5%的全果壳萃取物治疗褥疮的组织学评分的评估,结果如图4所示。在发炎评分中,图4A显示,除2.5%的全果壳萃取物的发炎评分下降到2.67,其余小组的评分均在3.83~4之间。再上皮化评分如图4B所示,除2.5%的全果壳萃取物的评分增至2外,其余组别评分均在1~1.17之间。肉芽组织生成程度的评分如图4C所示,除2.5%的全果壳萃取物的评分增至2外,其余组别评分均在1~1.33之间。血管生成评分显示于图4D,除2.5%的全果壳萃取物的评分增加到2.67外,其余组的评分在1~1.67之间。上述结果显示,2.5%的全果壳萃取物对伤口和褥疮的愈合非常有效。
进一步确认2.5%(w/w)山竹果壳萃取物的作用,将30只7周龄BALB/c小鼠分为5组,分别为进行未给药(标记为控制组)、给予赋形剂(标记为安慰剂组)和给予三种Xantho样品组(标记为山竹果壳萃取物;内:内果壳萃取物;外:外果壳萃取物;全:全果壳萃取物),每组6只小鼠。在第3阶段褥疮形成后,每天以各样品处理伤口(40.25mg/cm2),持续7天。在第0天、第4天和第7天观察溃疡愈合、体重、食物和水的摄入量等几个参数,并拍摄每组伤口面积,然后使用ImageJ软件(ImageJFiji,USA)进行分析。如图5和图6所示,2.5%(w/w)的外果壳萃取物和全果壳萃取物显著缩小了第3阶段褥疮溃疡的大小,似乎外果壳萃取物对褥疮的治疗潜力最大。
尽管本发明已经被足够详细的描述和示例,以供本领域技术人员可以制作和实施,但在不脱离本发明的精神和范围的情况下,各种替代、修改和改进应该是显而易见的。
本领域技术人员容易理解,本发明很好地适用于实现所述目的并获得所提及的目的和优点以及其中固有的那些目的和优点。细胞、动物以及产生它们的过程和方法仅代表最佳实施方式,是例示性的,并不意在限制本发明的范围。本领域技术人员能想到其中的修改和其他用途,这些修改包含在本发明的精神内并且由权利要求书的范围所限定。
Claims (11)
1.一种组合物在制备治疗褥疮的药物中的用途,其中所述组合物包括有效剂量的山竹果壳萃取物。
2.如权利要求1所述的用途,其中,所述山竹果壳萃取物包含山竹果壳水萃取物和/或山竹果壳酒精萃取物。
3.如权利要求1所述的用途,其中,所述山竹果壳包含山竹果壳的外果壳和/或山竹果壳的内果壳。
4.如权利要求1所述的用途,其中,所述山竹果壳是山竹果壳的外果壳。
5.如权利要求1所述的用途,其中,所述山竹果壳萃取物包含α-倒捻子素及γ-倒捻子素。
6.如权利要求1所述的用途,其中,所述组合物是肠胃外制剂。
7.如权利要求6所述的用途,其中,所述肠胃外制剂是外用制剂。
8.如权利要求1所述的用途,其中,所述有效剂量为0.5%w/w至10%w/w。
9.如权利要求1所述的用途,其中,所述有效剂量为1%w/w至8%w/w。
10.如权利要求1所述的用途,其中,所述有效剂量为1.25%w/w至5%w/w。
11.一种治疗个体褥疮的方法,包含给予一种包含有效剂量的山竹果壳萃取物的医药组合物。
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