نتایج جستجو برای: nerve degeneration

تعداد نتایج: 211971  

2014
Hong-Ying Li Yi-Wen Ruan Chao-Ran Ren Qi Cui Kwok-Fai So

Secondary degeneration occurs commonly in the central nervous system after traumatic injuries and following acute and chronic diseases, including glaucoma. A constellation of mechanisms have been shown to be associated with secondary degeneration including apoptosis, necrosis, autophagy, oxidative stress, excitotoxicity, derangements in ionic homeostasis and calcium influx. Glial cells, such as...

ژورنال: Anatomical Sciences Journal 2007
Behnam Rasooli, Fatemeh, Behnam Rasooli, Morteza, Gholi Zadeh Nasri, Fatemeh, Moghimi, Ali, Nik Ravesh, Mohammad Reza,

Purpose: It has been shown that sodium meta silicate has an antioxidant effects and suppress the production of oxidative enzymes. Since the inflammation phenomena and increase the level of free radicals mostly take part in post-injury neuronal degeneration, the purpose of the present research was to examine weather the antioxidant property of sodium meta silicate can prevent the central degener...

ژورنال: Anatomical Sciences Journal 2008
Jamalpoor, Zahra, Nourani, Mohammad Reza, Owada, Youji, Taghipour, Hamid Reza,

Purpose:The regeneration of axon and myelin sheet after crush injury of peripheral nerves involves interaction of several types of cells, including Schwann cells, monocyte, macrophage and fibroblast. Among them, haematogenous macrophages invading into the peripheral nervous systein play a major role in myelin uptake during Wallerian degeneration. Materials and Methods: In this study 35 C57/BL6 ...

Background and Aim: Peripheral nerve injury occurs in about 3% of the patients suffering from trauma and accidents. This injury induces Wallerian degeneration in the site of injury and, as a retrograde reaction, extends to the cell bodies of injured neurons in the central nervous system. The present study aimed to assess the neuro-protective effects of the alcoholic extract of Artemisia herba-a...

Background: The neuroprotective effects of duloxetine, as an antidepressant agent, and the neurodegenerative effects of methamphetamine have been shown in previous studies. Nonetheless, their exact neurochemical and behavioral effects are still unclear. In the current study, we sought to clarify the molecular mechanisms involved in the protective effects of duloxetine against methamphetamine-in...

Journal: :journal of medical signals and sensors 0
mahdad esmaeili alireza mehri dehnavi hossein rabbani fedra hajizadeh

this paper presents a new three-dimensional curvelet transform based dictionary learning for automatic segmentation of intraretinalcysts, most relevant prognostic biomarker in neovascular age-related macular degeneration, from 3d spectral-domain optical coherencetomography (sd-oct) images. in particular, we focus on the spectralis sd-oct (heidelberg engineering, heidelberg, germany) system, and...

Journal: :Proceedings of the National Academy of Sciences 1934

2014
Junyang Jung Hyun Woo Jo Hyunseob Kwon Na Young Jeong

Studies have shown that lysosomal activation increases in Schwann cells after nerve injury. Lysosomal activation is thought to promote the engulfment of myelin debris or fragments of injured axons in Schwann cells during Wallerian degeneration. However, a recent interpretation of lysosomal activation proposes a different view of the phenomenon. During Wallerian degeneration, lysosomes become se...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید