• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利:CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验

霍乱毒素或其B亚基处理后睫状体的超微结构研究

Fine structural studies of ciliary processes after treatment with cholera toxin or its B subunit.

作者信息

Mishima H, Bausher L, Sears M, Gochu M, Ono H, Gregory D

出版信息

Graefes Arch Clin Exp Ophthalmol. 1982;219(6):272-8. doi: 10.1007/BF00231412.

DOI:10.1007/BF00231412
PMID:7160635
Abstract

Delivery of 2 micrograms of cholera toxin (CT), a specific, irreversible activator of adenyl cyclase, via the blood causes dilation of capillaries and stromal edema of the ciliary processes. These morphologic changes occur within 3 h, are maximal at 12 to 24 h, then gradually return to normal by 72 h. In the late phase of hypotony, ultrastructural changes in the ciliary epithelia, similar to Greeff vesicles, are due to a "paracentesis effect" from hypotony, caused by decreased aqueous flow through the eye. Delivery of 2 micrograms of the B subunit of CT (Sub-B) causes very mild capillary dilation and stromal edema of ciliary processes. These changes reach their peak at 3 h, then return to normal at 24 h. No significant damage occurred to the pigmented or non-pigmented epithelium with either agent. No hemorrhage, invasion of inflammatory cells or appearance of fibrin exudates in the ciliary processes could be detected.

摘要

通过血液输送2微克霍乱毒素(CT),一种特异性、不可逆的腺苷酸环化酶激活剂,会导致毛细血管扩张和睫状体基质水肿。这些形态学变化在3小时内出现,在12至24小时达到最大值,然后在72小时逐渐恢复正常。在低眼压后期,睫状体上皮的超微结构变化类似于Greeff小泡,是由于眼内房水流量减少导致低眼压引起的“穿刺效应”。输送2微克CT的B亚基(Sub-B)会引起非常轻微的毛细血管扩张和睫状体基质水肿。这些变化在3小时达到峰值,然后在24小时恢复正常。两种药物对色素上皮或非色素上皮均未造成明显损伤。未检测到睫状体有出血、炎性细胞浸润或纤维蛋白渗出物出现。

相似文献

1
Fine structural studies of ciliary processes after treatment with cholera toxin or its B subunit.霍乱毒素或其B亚基处理后睫状体的超微结构研究
Graefes Arch Clin Exp Ophthalmol. 1982;219(6):272-8. doi: 10.1007/BF00231412.
2
Ultracytochemistry of cholera-toxin binding sites in ciliary processes.睫状体中霍乱毒素结合位点的超微细胞化学
Cell Tissue Res. 1982;223(2):241-53. doi: 10.1007/BF01258486.
3
Intraocular pressure and aqueous flow are decreased by cholera toxin.
Invest Ophthalmol Vis Sci. 1981 Mar;20(3):371-81.
4
An animal model for cidofovir (HPMPC) toxicity: intraocular pressure and histopathologic effects.西多福韦(HPMPC)毒性动物模型:眼压和组织病理学效应。
Exp Eye Res. 1997 May;64(5):795-806. doi: 10.1006/exer.1996.0273.
5
Morphological changes in rabbit ciliary epithelium and blood-aqueous barriers after intravitreal 10(-5) M endothelin-1.玻璃体内注射10(-5) M内皮素-1后兔睫状体上皮及血-房水屏障的形态学变化
Exp Eye Res. 1996 Jun;62(6):605-12. doi: 10.1006/exer.1996.0071.
6
The effect of epinephrine on ciliary process vasculature and IOP studied by intraocular microendoscopy in the albino rabbit.通过眼内微内镜研究肾上腺素对白化兔睫状体血管系统和眼压的影响。
Curr Eye Res. 1992 Feb;11(2):161-73. doi: 10.3109/02713689209000067.
7
Effects of water-soluble marihuana-derived material (MDM) on the rabbit ciliary body: light and electron microscopy.水溶性大麻衍生材料(MDM)对兔睫状体的影响:光镜和电镜观察
Curr Eye Res. 1986 Jun;5(6):457-64. doi: 10.3109/02713688609015115.
8
Role of G-proteins in ciliary process adenylyl cyclase responses of the albino rabbit eye.G蛋白在白化兔眼睫状突腺苷酸环化酶反应中的作用。
Curr Eye Res. 1994 Apr;13(4):243-50. doi: 10.3109/02713689408995784.
9
The effects of intravitreally injected endothelin-1 on the iris-ciliary body microvasculature in rabbits.玻璃体内注射内皮素-1对兔虹膜睫状体微血管系统的影响。
Curr Eye Res. 1996 Jun;15(6):633-7. doi: 10.3109/02713689609008903.
10
[A new function of the non-pigmented epithelium of ciliary processes in the formation of aqueous humor].[睫状体无色素上皮在房水形成中的新功能]
Klin Monbl Augenheilkd. 1984 Jul;185(1):28-34. doi: 10.1055/s-2008-1054565.

引用本文的文献

1
The adenylate cyclase receptor complex and aqueous humor formation.腺苷酸环化酶受体复合物与房水生成
Yale J Biol Med. 1984 May-Jun;57(3):283-300.

本文引用的文献

1
CYTOLOGICAL BASIS OF PROTEIN LEAKAGE INTO THE EYE FOLLOWING PARACENTESIS. AN ELECTRON MICROSCOPIC STUDY.穿刺术后蛋白质渗漏入眼的细胞学基础。一项电子显微镜研究。
Invest Ophthalmol. 1965 Jun;4:249-63.
2
INTESTINAL MORPHOLOGY IN HUMAN AND EXPERIMENTAL CHOLERA.人类和实验性霍乱中的肠道形态学
Arch Pathol. 1964 May;77:529-37.
3
An electron microscopic study of the passage of colloidal particles from the blood vessels of the ciliary processes and choroid plexus of the rabbit.兔睫状体和脉络丛血管中胶体颗粒通过情况的电子显微镜研究。
J Cell Biol. 1962 Nov;15(2):227-39. doi: 10.1083/jcb.15.2.227.
4
The nature of the gastrointestinal lesion in asiatic cholera and its relation to pathogenesis: a biopsy study.亚洲霍乱胃肠道病变的性质及其与发病机制的关系:一项活检研究。
Am J Trop Med Hyg. 1960 Mar;9:125-35. doi: 10.4269/ajtmh.1960.9.125.
5
Studies on the ciliary epithelium and the zonule. I. Electron microscope observations on changes induced by alteration of normal aqueous humor formation in the rabbit.睫状体上皮与悬韧带的研究。I. 家兔正常房水生成改变所致变化的电子显微镜观察
Am J Ophthalmol. 1958 Nov;46(5 Pt 2):299-317; discussion 317-8.
6
Ultracytochemistry of cholera-toxin binding sites in ciliary processes.睫状体中霍乱毒素结合位点的超微细胞化学
Cell Tissue Res. 1982;223(2):241-53. doi: 10.1007/BF01258486.
7
Beta subunits of human choriogonadotropin and ovine lutropin are biologically active.人绒毛膜促性腺激素的β亚基和绵羊促黄体生成素具有生物活性。
Proc Natl Acad Sci U S A. 1982 Apr;79(8):2500-3. doi: 10.1073/pnas.79.8.2500.
8
Intraocular pressure and aqueous flow are decreased by cholera toxin.
Invest Ophthalmol Vis Sci. 1981 Mar;20(3):371-81.
9
A vascular permeability defect in experimental cholera.
Proc Soc Exp Biol Med. 1967 Mar;124(3):822-5. doi: 10.3181/00379727-124-31862.
10
Preparation of the vascular permeability factor of Vibrio cholerae.霍乱弧菌血管通透性因子的制备
J Bacteriol. 1966 Sep;92(3):793-5. doi: 10.1128/jb.92.3.793-795.1966.