CN105497901A - 钙激活氯离子通道拮抗剂的用途 - Google Patents

钙激活氯离子通道拮抗剂的用途 Download PDF

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CN105497901A
CN105497901A CN201510928370.6A CN201510928370A CN105497901A CN 105497901 A CN105497901 A CN 105497901A CN 201510928370 A CN201510928370 A CN 201510928370A CN 105497901 A CN105497901 A CN 105497901A
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calcium
application
chloride channel
myelin
channel antagonist
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武双婵
张倩颖
岳源
杜思达
丁虹
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WUHAN WORDNER UNITED PHARMACEUTICAL CO Ltd
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WUHAN WORDNER UNITED PHARMACEUTICAL CO Ltd
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Abstract

本发明属于医药领域,具体是钙激活氯离子通道拮抗剂的用途,即钙激活氯离子通道拮抗剂在制备治疗神经脱髓鞘疾病药物中的用途。本发明首次提出将钙激活氯离子通道拮抗剂用于制备治疗神经脱髓鞘疾病药物,能够安全、高效、稳定地治疗多发性硬化、急性感染性多神经根神经炎、多灶性白质脑炎、亚急性硬化性全脑炎、脑桥中央型髓鞘崩解症、进行性皮质下缺血性脑病、老年痴呆、精神***症等疾病。

Description

钙激活氯离子通道拮抗剂的用途
技术领域
本发明属于医药领域,具体是钙激活氯离子通道拮抗剂的用途。
背景技术
神经纤维分为无髓鞘神经纤维和有髓鞘神经纤维。有髓鞘神经纤维如植物神经节前纤维和较大的躯体神经纤维,其轴索有一个外鞘,称为髓鞘。髓鞘由髓鞘细胞的细胞膜构成。中枢神经的髓鞘细胞是少树突胶质细胞、周围神经纤维的髓鞘是施万氏细胞的细胞膜构成。髓鞘由脂质及蛋白质组成。可保护轴索又具有对神经冲动的绝缘作用,可加速神经冲动的传导。髓鞘厚的纤维冲动传导亦快。在髓鞘遭到破坏时,传导速度减慢。神经传导也受温度的影响,在髓鞘脱失时体温的升高可引起传导阻滞。
髓鞘的作用是保护神经元并使神经冲动在神经元上得到很快的传递,所以,髓鞘的脱失会使神经冲动的传送受到影响。急性脱髓鞘性疾病的神经髓鞘可以再生,且速度较迅速,程度较完全,虽然再生的髓鞘较薄,但一般对功能恢复的影响不大。慢性脱髓鞘性神经病,由于反复脱髓鞘与髓鞘的再生许旺细胞明显增殖,神经可***,并有轴突丧失,因此功能恢复不完全。急性脱髓鞘性疾病的神经髓鞘可以再生,且速度较迅速,程度较完全,虽然再生的髓鞘较薄,但一般对功能恢复的影响不大。慢性脱髓鞘性神经病,由于反复脱髓鞘与髓鞘的再生许旺细胞明显增殖,神经可***,并有轴突丧失,因此功能恢复不完全。脱髓鞘疾病是一类病因不相同、临床表现各异、但有类同特征的获得性疾患,其特征的病理变化是神经纤维的髓鞘脱失而神经细胞相对保持完整。即髓鞘形成障碍型和髓鞘破坏型。髓鞘形成障碍型脱髓鞘疾病是遗传代谢缺陷引起的髓鞘形成障碍,主要包括髓鞘磷脂代谢异常引起的脑白质营养不良,如异染性白质脑病、脑白质海绵样变性、肾上腺白质营养不良等。髓鞘破坏型脱髓鞘疾病是后天获得的脱髓鞘疾病。
其常见的疾病包括:①免疫介导,如多发性硬化、急性感染性多神经根神经炎;②病毒感染,如进行性多灶性白质脑炎、亚急性硬化性全脑炎;③营养障碍,如脑桥中央型髓鞘崩解症;④缺氧,如迟发性缺氧后脱髓鞘脑病、进行性皮质下缺血性脑病。一般临床上诊断脱髓鞘疾病时多指免疫介导的脱髓鞘疾病,包括多发性硬化、急性感染性多神经根神经炎等。目前尚无好的治疗方法,主要采用激素治疗和神经营养,疗效不佳。
发明内容
本发明通过研究发现钙激活氯离子通道拮抗剂的新用途,可用于治疗神经脱髓鞘疾病。
尼氟灭酸,是一种已被公认的钙激活氯离子通道拮抗剂,目前主要作为非甾体抗炎镇痛药应用于临床,疗效优于其他抗炎镇痛药,可用于老年患者。用于急、慢性关节炎和非关节炎症、创伤及手术后炎症,还可用于支气管炎、肺炎、急性浅表血栓性静脉炎等。
本发明提供了钙激活氯离子通道拮抗剂在制备治疗神经脱髓鞘疾病药物中的用途。
所述神经脱髓鞘疾病包括多发性硬化、急性感染性多神经根神经炎、多灶性白质脑炎、亚急性硬化性全脑炎、脑桥中央型髓鞘崩解症、进行性皮质下缺血性脑病、老年痴呆、精神***症。
所述钙激活氯离子通道拮抗剂包括,尼氟灭酸或T16Ainh-A01型选择性抑制剂。
本发明的有益效果在于:钙激活氯离子通道拮抗剂具有很好的抗脱神经脱髓鞘症状,是一种安全、高效、稳定的治疗药物。
具体实施方式
下面结合实施例对本发明作进一步说明。
尼氟灭酸,是一种已被公认的钙激活氯离子通道拮抗剂,目前主要作为非甾体抗炎镇痛药应用于临床,疗效优于其他抗炎镇痛药,可用于老年患者。用于急、慢性关节炎和非关节炎症、创伤及手术后炎症,还可用于支气管炎、肺炎、急性浅表血栓性静脉炎等。
本实施例提供钙激活氯离子通道拮抗剂在制备治疗神经脱髓鞘疾病药物中的用途。
所述神经脱髓鞘疾病包括多发性硬化、急性感染性多神经根神经炎、多灶性白质脑炎、亚急性硬化性全脑炎、脑桥中央型髓鞘崩解症、进行性皮质下缺血性脑病、老年痴呆、精神***症。
所述钙激活氯离子通道拮抗剂以尼氟灭酸或T16Ainh-A01型选择性抑制剂为例。
(一)试验动物:HM小鼠,由武汉大学动物实验中心提供。
(二)试验材料:尼氟灭酸,国药集团提供,批号:20150507;T16Ainh-A01由北京华夏远洋科技有限公司提供,批号:20141209。
(三)试验方法:采用双环己酮草酰二腙(CPZ,cuprizone)制备小鼠脱髓鞘精神***症模型,昆明雄性小鼠40只,随机分为4组,每组10只。正常组,喂正常饲料;模型组,喂含有0.2%的双环己酮草酰二腙(CPZ)的饲料,连续3周;模型+尼氟灭酸组,ig,20mg/kg,一天一次;模型+T16Ainh-A01组,ig,2mg/kg,一天一次。实验3周后,进行旷场试验、强迫游泳实验、水迷宫实验。
(四)统计学处理:采用SPSS10.0如见进行统计分析。计量资料以(χ±S)表示,结果进行t检验;计数资料采用卡方检验。P<0.05为差异显著。
(五)试验结果:旷场试验结果可见正常组中央格百分率为25.3%,模型组中央格百分率为10.9%,尼氟灭酸的中央格百分率为17.3%,T16Ainh-A01的中央格百分率为22.6%,提示模型组小鼠对学***台次数为3.06次,模型组为1.54次,尼氟灭酸组为2.66次,T16Ainh-A01组为2.43次,表明钙激活氯离子通道具有显著的改善神经损伤小鼠的记忆能力。结果见1。
表1对精神失常小鼠学习欲望、求生欲望及记忆的影响
与正常组相比**p<0.01;与模型组相比##p<0.01。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进或变形,这些改进或变形也应视为本发明的保护范围。

Claims (3)

1.钙激活氯离子通道拮抗剂在制备治疗神经脱髓鞘疾病药物中的用途。
2.根据权利要求1所述的用途,其特征在于:所述神经脱髓鞘疾病包括多发性硬化、急性感染性多神经根神经炎、多灶性白质脑炎、亚急性硬化性全脑炎、脑桥中央型髓鞘崩解症、进行性皮质下缺血性脑病、老年痴呆、精神***症。
3.根据权利要求1所述的用途,其特征在于:所述钙激活氯离子通道拮抗剂包括,尼氟灭酸或T16Ainh-A01型选择性抑制剂。
CN201510928370.6A 2015-12-15 2015-12-15 钙激活氯离子通道拮抗剂的用途 Pending CN105497901A (zh)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002003402A (ja) * 2000-06-27 2002-01-09 Japan Science & Technology Corp 細胞死抑制剤
WO2008046014A1 (en) * 2006-10-12 2008-04-17 Remedy Pharmaceuticals, Inc. Treatment of alzheimer's disease using compounds that reduce the activity of non-selective ca++- activated atp-sensitive cation channels regulated by sur1 receptors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002003402A (ja) * 2000-06-27 2002-01-09 Japan Science & Technology Corp 細胞死抑制剤
WO2008046014A1 (en) * 2006-10-12 2008-04-17 Remedy Pharmaceuticals, Inc. Treatment of alzheimer's disease using compounds that reduce the activity of non-selective ca++- activated atp-sensitive cation channels regulated by sur1 receptors

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