CN104208086B - 落新妇苷或其同系物在制备治疗银屑病药物中的应用 - Google Patents
落新妇苷或其同系物在制备治疗银屑病药物中的应用 Download PDFInfo
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- CN104208086B CN104208086B CN201310217584.3A CN201310217584A CN104208086B CN 104208086 B CN104208086 B CN 104208086B CN 201310217584 A CN201310217584 A CN 201310217584A CN 104208086 B CN104208086 B CN 104208086B
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Abstract
本发明公开了落新妇苷或其同系物在制备治疗银屑病药物中的应用。动物试验证明,所述落新妇苷或其同系物等对银屑病具有显著的疗效,可以用于制备治疗银屑病的药物。落新妇苷或其同系物无毒副作用,即使长期服用,也无明显不良反应,具有较大的临床应用价值。
Description
技术领域
本发明涉及落新妇苷及其同系物的新用途。
背景技术
银屑病(Psoriasis)俗称牛皮癣,是一种常见的慢性、复发性、且与免疫相关的疾病。临床表现为在浸润性红斑基础上,被覆多层银白色磷屑。与其他疾病不同的是尽管大约80%的患者仅具有瘙痒症状,但由于皮损外观不雅,导致银屑病患者感受到严重的心理压力,自卑,失落,甚至自杀倾向,极大的影响了患者的生存质量。现代医学认为本病的原因在于免疫系统功能障碍,其治疗普遍应用(内服或外用)免疫抑制剂,以及可改善皮损症状的皮质激素或煤焦油等药物,如蒽林、钙泊三醇,他扎罗汀,皮损下注射皮质激素或内服迪银片,维甲酸类、抗肿瘤药等方法,尽管短期缓解症状效果尚可,但长期应用都具有严重的毒副作用,临床仍缺乏疗效好、副作用小的治疗药物。
发明内容
本发明的目的是公开一种落新妇苷落新妇苷及其同系物在制备治疗银屑病药物中的应用,以克服现有技术存在的上述缺陷,满足临床应用的需要。
所述落新妇苷,花旗松素-3-O-α-L-吡喃鼠李糖苷,英文名Astilbin,分子式C21H22O11,分子量450.408,CAS号:
落新妇苷(astilbin),2R,3R)-花旗松素-3-O-α-L-吡喃鼠李糖苷,是1950年由Kozo Hayashi和Kazuhiko Ouchi首次从植物落新妇中提取得到的化合物,据文献报道,落新妇苷具有多种显著的生物学活性,包括抑制辅酶A还原酶,抑制醛糖还原酶,保护肝脏,镇痛,抗水肿等。近年又来有报道称落新妇苷有显著的选择性免疫抑制作用,且它的选择性作用与以往的免疫抑制剂相比具有明显优势,因此可以作为一种新的免疫抑制剂用于免疫相关疾病的治疗。
落新妇苷的提取方法,可参见周军,曲佳,寿国香,吕曙华在HPLC法测定土茯苓中落新妇苷和黄杞苷[1]文献中报道的方法,用甲醇超声提取60min。提取完全,含量高。相关的理化性能以及检测方法,可参见土茯苓药材中落新妇苷和总黄酮的含量测定方法研究[2]文献的报道方法,利用HPLC方法测定落新妇苷的含量。
[1]周军,曲佳,寿国香,吕曙华的HPLC法测定土茯苓中落新妇苷和黄杞苷。中国药品标准,2009,10(5):372-374.
[2]方圆,王雪彦,晁若冰.土茯苓药材中落新妇苷和总黄酮的含量测定.药物分析杂志.2010,30(9):1738-1741.
动物试验证明,所述落新妇苷及体内可代谢成其苷元(花旗松素)的同类物质,包括异落新妇苷、新落新妇苷等对银屑病具有显著的疗效,可 以用于制备治疗银屑病的药物。可通过口服、外搽、注射或腔道途径施加于需要治疗的患者,剂量一般为0.1-5g/天;
本发明还包括一种用于治疗银屑病的药物,包括治疗有效量的落新妇苷及体内可代谢成其苷元(花旗松素)的同类物质,包括异落新妇苷、新落新妇苷等和医药上可接受的载体,所述载体如:如稀释剂、赋形剂(比如水)等,填充剂如淀粉、蔗糖、乳糖、微晶纤维素等,粘合剂如纤维素衍生物、明胶和聚乙烯吡咯烷酮等,润湿剂如甘油等,表面活性剂如十六烷醇等,崩解剂如碳酸钙、交聚维酮、羟基乙酸淀粉钠等,润滑剂如滑石粉、硬脂酰富马酸钠、硬脂酸钙和镁等。
可采用本领域公知的方法,将治疗有效量的落新妇苷或其苷元花旗松素、类似结构异落新妇苷、新落新妇苷等与一种或多种药学上可接受的载体相混合,制备成常规的固体制剂如片剂、粉剂、颗粒剂、胶囊、滴丸、软胶囊、口服液、注射液、针剂、乳剂(含微乳、亚微乳)、软膏、栓剂、贴剂、巴布剂等,其中活性成分的含量为0.1%~99.5%(重量比)。
落新妇苷及其同系物无毒副作用,即使长期服用,也无明显不良反应,具有较大的临床应用价值。
具体实施方式
实施例中,所采用的落新妇苷,来源于百合科植物光叶菝契SmilaxglabraRoxb.的干燥根茎土茯苓。土茯苓中含落新妇苷、异落新妇苷、槲皮素、土茯苓苷等黄酮类物质,其中以落新妇苷含量较高。落新妇苷具有的利尿、镇痛作用与土茯苓的除湿、解毒等功效密切相关[3],可以作为土 茯苓药材质量控制的指标成分。
[3]吴丽明,张敏.土茯苓中落新妇苷的利尿和镇痛作用,中药材.1995,18(2):627.
实施例1
落新妇苷对心得安诱导银屑病模型的影响:
1、健康成年白化豚鼠18只,4-5周龄,初始体重250-300g,雄性,对豚鼠编号,称重并记录。按随机数字表法分组,取3只豚鼠作为空白对照组,其余15只作为造模组。
2、用棉棒将5%盐酸心得安乳剂均匀涂抹豚鼠双耳背皮肤,用乳膏基质按照上述方法外涂进行造模,空白对照组涂抹空白基质,所有动物用量均为每次0.2ml/耳,涂抹均匀,使耳背上覆上薄薄一层,每日3次,每次间隔3h。每天观察豚鼠的体重变化以及状态。当造模一周后,观察豚鼠基本出现红肿甚至皮损现象,造模基本成功。
3、造模成功后,将造模组分为落新妇苷组、甲氨蝶呤组两个组,每组13只。落新妇苷外涂,甲氨蝶呤内服(临床剂量折算)每天上午造模2次,下午给药1次。给药后,观察各组之间豚鼠的状态以及与模型组之间的比较。给药10天后,取材。
4、取材。将豚鼠用20%水合氯醛麻醉(0.34ml/100g),等到豚鼠死后,剪下豚鼠的双耳,放入装有10%甲醛溶液的药瓶中,盖好,送检切片,Baker评分。结果见表1。
表1:落新妇苷对豚鼠心得安银屑病模型的影响
Baker法积分评估的标准如下:
(1)角质层中见有Munro小脓疡计2.0分;
(2)过度角化计0.5分;角化不全计1.0分。
(3)表皮层中见有颗粒层变薄或消失计1.0分;
(4)棘层肥厚计1.0分;
(5)皮突延长、基底层迂曲起伏,根据轻、中、重程度分别计0.5、1.0、1.5分;
(6)真皮层见有单一核及多形核细胞浸润,根据轻、中、重程度分别计0.5、1.0、2.0分;
(7)乳突突出明显计0.5分;
(8)真皮浅层毛细血管扩张计0.5分。
实施例2
粉剂:
落新妇苷 5g
乳糖 150g
吐温-80 15g
制备方法:
将落新妇苷与其他组合混合,冷冻干燥,即可获得粉剂。
纳米乳剂:
落新妇苷 10g
卵磷脂 5g
普朗尼克 10g
吐温-80 2g
甘油 25g
制备方法:
称取处方量的甘油、吐温-80,搅拌分散于适量蒸馏水中。另取卵磷脂、普朗尼克F-68适量,搅拌下依次加入到水相溶液中。待卵磷脂与普朗克尼F-68分散完全后,将落新妇苷加入到水相中,同时磁力搅拌,使完全溶解。超声6min,即得落新妇苷初乳。在搅拌下向初乳中加入蒸馏水至一定量,再超声6min。将此胶体分散系用高压匀质机于130MPa循环3次,即可得到乳光明显的落新妇苷纳米乳剂。
胶囊剂:
花旗松素 1g
淀粉 4g
制备方法:
花旗松素与淀粉混匀,装胶囊,即得。
微乳剂:
落新妇苷 16.5g
蒸馏水 18ml
吐温80 30g
正丁酸乙酯和乙醇 90ml
制备方法:
将各种试剂混合搅拌均匀,即可得到透明均一的微乳液。
滴丸;
异落新妇苷 10g
基质(聚乙二醇1500~20000、羧甲基淀粉钠) 90g
制备方法:
以落新妇苷为原料,按照一定的比例,加入表面活性剂聚乙二醇、羧甲基淀粉钠等基质混合均匀,将混合物料加热至熔融,搅拌均匀,置入专用的滴丸机,以适当的速度,滴入冷凝剂中而成。
乳膏剂:
新落新妇苷 5g
O/W型乳膏基质
制备方法:
取将新落新妇苷加入含羟苯乙酯、三乙醇胺、十二烷基硫酸钠、甘油等制成的水相,将硬脂酸、单硬脂酸甘油酯、白凡士林制成水包油型(O/W)乳膏基质,按等量递加法与乳膏基质混合均匀,分装,即得。
亚微乳剂:
落新妇苷 2.0g
大豆油 2.0g
精制蛋黄磷脂 1.2g
油酸 0.04g
泊洛沙姆188 0.8g
注射用水适量
制备方法:
处方比例称取落新妇苷、注射用大豆油、精制蛋黄磷脂、油酸于烧杯,置6O℃水浴中搅拌混合均匀,制备澄清稳定的油相,于60℃保温备用。再按处方比例称取泊洛沙姆188,加热搅拌分散均匀,制得水相,于60℃保温备用。然后将油相滴加到水相中,置高剪切分散乳化机中,混合制成粗乳剂,加入注射用水使成全量。再将粗乳剂经二步高压均质机匀化,调节pH至7.5~8.0,灌封于安瓿,按设定温度和时间灭菌即得。
注射液:
落新妇苷 5g
葡萄糖 125g
吐温-80 15g
注射用水适量
制备方法:
将各成分溶解混合,加入表面活性剂,加入注射用水搅拌,即得。
栓剂:
硝酸益康唑 50g
落新妇苷 200ml
冰片 3g
基质(可可豆脂、半合成脂肪酸酯)适量
制备方法:
将基质水浴加热至熔化,加入药物,药物与基质应充分混匀,注入栓模(已涂润滑剂)冷却至完全凝固,削去溢出部分,脱模。制得乳黄色至浅黄棕色鸭舌型栓剂,有特臭。
Claims (2)
1.落新妇苷作为唯一活性成分在制备治疗银屑病药物中的应用。
2.根据权利要求1所述的应用,其特征在于,所说的药物为片剂、粉剂、颗粒剂、胶囊、滴丸、口服液、注射液、针剂、乳剂、软膏、栓剂、贴剂或巴布剂。
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