银屑平丸对银屑病样小鼠模型皮损中Notch1和Jagged1表达水平的影响

被引:0
作者
彭礼真
机构
[1] 湖南中医药大学
关键词
银屑病; 银屑平丸; Notch1; Jagged1; 银屑病样小鼠模型;
D O I
10.27138/d.cnki.ghuzc.2019.000178
年度学位
2019
学位类型
硕士
导师
摘要
目的:观察银屑平丸对咪喹莫特乳膏诱导下形成的银屑病小鼠样模型Notch1和Jagged1表达水平的影响。方法:随机将48只BALB/c雌性小鼠分为空白组、模型对照组、银屑平丸高、中、低剂量组、阿维A胶囊组,每组8只小鼠。所有不同组别的小鼠背部脱毛后,给予空白组背部皮肤每日外涂一次适量医用凡士林,其余5组小鼠背部皮肤每日外涂一次5%咪喹莫特乳膏,连续涂药8天;同时予以相应药物给各组小鼠进行灌胃干预,空白组及模型对照组予以生理盐水灌胃,银屑平丸高、中、低、阿维A胶囊组则分别予以相应药物溶液进行灌胃,均1次/d,连续灌胃8天。末次给药24小时后,观察并记录小鼠背部皮肤进行皮损面积和严重程度指数评分;运用形态观察、HE染色病理分析、免疫组化、RT-PCR等方法以检测小鼠皮肤组织Notch信号通路中Notch1、Jagged1的表达。结果:(1)银屑平丸高、中、低剂量组、阿维A胶囊组及模型对照组小鼠背部皮损PASI评分较空白组均有明显差异(P<0.05);银屑平丸高、中、低剂量组及阿维A胶囊组小鼠背部皮损PASI评分较模型对照组均有明显差异(P<0.05);(2)银屑平丸高、中、低剂量组小鼠背部的皮损组织病理变化不同程度地轻于模型对照组;(3)模型对照组中Notch1、Jagged1免疫组化结果和mRNA相对表达均高于空白组。结论:(1)银屑平丸能降低咪喹莫特诱导银屑病样小鼠模型皮损的PASI评分,起到改善银屑病皮损的作用。(2)银屑病的发生可能与Notch1、Jagged1通路有关。(3)银屑平丸可通过降低Notch1、Jagged1的表达,对银屑病起到一定的治疗作用。
引用
收藏
页数:52
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