Effects of WH-1 and WH-2 eye drops on experimental allergic uveitis in rabbits

Effects of WH-1 and WH-2 eye drops on experimental allergic uveitis(FAU)in rabbits induced by bovine serum albumin were clinically and pathologically observed in comparisonwith local drops of dexamethasone used as positive control.The results showed that WH-2 obvi-ously inhibited the inflammatory reactions while WH-1 did not.Protein concenwation in the aqueoushumor of WH-2-treated group of rabbits was 9.24±2.34mg/ml,which was notably lower(P【0.01)than both that of the untreated(14.33±3.14 mg/ml)and of the WH-1-treated(12.91±3.95mg/ml),but signifificantly higher than that of the dexame dexamethasone-treated goup(4.43±1.43mg/ml,P【0.01).The alleviation of the intraocular inflammatory reaction by therapy of WH-2eye drops was confimed pathologically.This study indicates that WH-2 has a positiveantiphlogistic effect on EAU in rabbits.

Effects of Qingkailing on Experimental Allergic Uveitis in Rabbits

Experimental allergic uveitis(EAU)in rabbits was induced by singleintraocular injection of bovine serum albumin(BSA).The average of protein con-centration in aqueous humor of untreated group of rabbits was 14.33±1.21mg/mland the count of tritiated thymidine(~3H-TdR)incorporated into lymphocyte T was3,987±1,156cpm/10~6.The specific antibody responses to BSA in the serum andthe aqueous were 0.508±0.034 and 0.369±0.019(OD)respectively.Meanwhile,the effect of Qingkailing on EAU was observed in comparison wi...

WH-1和WH-2滴眼液对实粒性过敏性葡萄膜炎的影响

观察了麝香中分离出来的水溶性多肽WH—1和相当于从WH—1中分离出来的第一色带成份的人工合成代用品WH—2对牛血清的蛋白诱发的过敏性葡萄膜炎(EAU)的影响。结果显示,2％WH—1滴眼液对EAU无抑制,甚至有一定的刺激作用;0.5％WH—2滴眼液降低了房水中抗体反应和房水蛋白含量,眼球病理也证实其明显地抑制了EAU的炎症反应。

人脐带间充质干细胞对实验性自身免疫性葡萄膜炎的治疗作用研究

目的观察体外培养的人脐带间充质干细胞(human umbilical cord mesenchymal stem cells,HUCMSCs)对实验性自身免疫性葡萄膜炎(experimental autoimmune uveitis,EAU)的治疗作用。方法组织块贴壁法培养HUCMSCs、流式细胞术鉴定。用视网膜光感受器间维生素A类结合蛋白(interphotoreceptor retinoid-binding protein,IRBP)诱导EAU模型。C57BL/6小鼠尾静脉注射HUCMSCs,每日用裂隙灯显微镜对小鼠眼前节的炎症情况进行观察。流式细胞术检测实验小鼠脾脏淋巴细胞CD11c、CD86表型。结果建模后的C57BL/6小鼠于注射IRBP后7~9 d开始发病,12~14 d发病达高峰,16~20 d眼前节炎症自限性减轻,21 d后眼内炎症逐渐消退、自愈。HUCMSCs治疗后,建模小鼠EAU发病时间延长,炎症程度减轻,实验组与模型对照组比较,差异有统计学意义(P<0.05)。建模后的小鼠脾脏CD11c+CD86-细胞数量增加非常明显,经HUCMSCs治疗后第9天CD11c^+CD86^-细胞数量接近治疗前水平。建模后小鼠脾脏中CD86+CD11c+/CD11c比值下降,经HUCMSCs治疗后有所回升,但在第15天时仍未恢复至正常水平。结论 HUCMSCs对IRBP诱导的小鼠EAU有治疗作用,HUCMSCs作用于树突状细胞等抗原呈递细胞,抑制了EAU的进展。

超氧化物歧化酶对实验性过敏性葡萄膜炎的影响

本实验用牛血清白蛋白(BSA)加福氏不完全佐剂预免疫豚鼠10天后行玻璃体内 BSA 注射诱发出过敏性葡萄膜炎,观察了超氧化物歧化酶(SOD)对其的影响.眼球组织病理学观察结果显示,SOD 处理组动物眼前段以中性粒细胞为主的炎细胞浸润渗出显著减少,提示具有清除超氧阴离子(O^(-2))自由基作用的 SOD 对葡萄膜炎症过程中的细胞反应可能有一定的抑制作用.眼科学报 1993;9:103-105。

祛风活血丸对实验性自身免疫性葡萄膜炎大鼠血清IL-15、IFN-γ表达的影响

目的:观察祛风活血丸对实验性自身免疫性葡萄膜炎(Experimental autoimmune uveitis,EAU)大鼠血清白细胞介素-15 (Interleukin-15,IL-15)、干扰素-γ(Interferon-γ,IFN-γ)的影响。方法:将80只(160眼)雄性Lewis大鼠根据随机数字表法分为空白组、模型组、祛风活血丸常规剂量组、祛风活血丸2倍剂量组、熊胆开明片组,每组16只。除空白组外,其余大鼠进行主动免疫,建立EAU大鼠模型。模型制备成功后,连续灌胃给药14天,ELISA法检测大鼠血清中IL-15、IFN-γ的相对表达量。结果:与空白组比较,模型组各时间点IL-15、IFN-γ明显升高(P<0.01);与模型组比较,祛风活血丸常规剂量组、祛风活血丸2倍剂量组以及熊胆开明片组IL-15、IFN-γ的表达均降低(P<0.05,P<0.01)。结论:祛风活血丸可能通过抑制促炎症因子IL-15和IFN-γ的表达发挥其抗炎作用,从而达到改善EAU病理过程的效果。