کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9192091 | 1186613 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Macrophage colony stimulating factor (M-CSF) protects spiral ganglion neurons following auditory nerve injury: morphological and functional evidence
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کلمات کلیدی
PBSBAEPM-CSFSGCABIAuditory brainstem implant - ایمپلنت شنوایی مغزTUNEL - تونلApoptosis - خزان یاختهایCNS - دستگاه عصبی مرکزیNerve degeneration - دژنراسیون عصبیSpiral ganglion cell - سلول گانگلیونی اسپیرالcentral nervous system - سیستم عصبی مرکزیperipheral nervous system - سیستم عصبی پیرامونیBrainstem auditory evoked potential - شنوایی مغز استنتاج بالقوه را تحریک می کندHearing - شنیدن یا شنواییAuditory nerve - عصب شنواییmacrophage colony stimulating factor - فاکتور تحریک کننده کلون ماکروفاژPhosphate-buffered saline - محلول نمک فسفات با خاصیت بافریIAM - من هستمPNS - کارمندان دولتCaP - کلاه لبه دارInternal auditory meatus - گوش شنوایی داخلی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
عصب شناسی
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چکیده انگلیسی
Because hearing disturbance due to auditory nerve dysfunction imposes a formidable burden on human beings, intense efforts have been expended in experimental and clinical studies to discover ways to restore normal hearing. However, the great majority of these investigations have focused on the peripheral process side of bipolar auditory neurons, and very few trials have focused on ways to halt degenerative processes in auditory neurons from the central process side (in the cerebellopontine angle). In the present study, we investigated whether administration of macrophage colony-stimulating factor (M-CSF) could protect auditory neurons in a rat model of nerve injury. The electrophysiological and morphological results of our study indicated that M-CSF could ameliorate both anterograde (Wallerian) and retrograde degeneration in both the CNS and PNS portions of the auditory nerve. We attribute the success of M-CSF therapy to the reported functional dichotomy (having the potential to cause both neuroprotective and neurotoxic effects) of microglia and macrophages. Whether the activities of microglia/macrophages are neuroprotective or neurotoxic may depend upon the nature of the stimulus that activates the cells. In the present study, the neuroprotective effects of M-CSF that were observed could have been due to M-CSF we administered and to M-CSF released from endothelial cells, resident cells of the CNS parenchyma, or infiltrating macrophages. Another possibility is that M-CSF ameliorated apoptotic auditory neuronal death, although this hypothesis remains to be proved in future studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Neurology - Volume 192, Issue 1, March 2005, Pages 167-177
Journal: Experimental Neurology - Volume 192, Issue 1, March 2005, Pages 167-177
نویسندگان
Akinori Yagihashi, Tetsuji Sekiya, Shigehru Suzuki,