Abstract:
:In peripheral neuropathy (PN), dorsal column (DC) fibers that synapse in the nucleus gracilis (NuGr) mediate expression of mechanical allodynia and have increased expression of brain-derived neurotrophic factor (BDNF). Neurotrophins (NTs) are implicated in pathology or repair in PN. To assess NTs in the NuGr in PN, mRNA expression of BDNF, nerve growth factor (NGF), and NT receptors TrkA, TrkB, and p75 was determined 1 week after ligation of L5 and L6 spinal nerves (SNL). Laser capture microdissection was used to collect NuGr tissue followed by reverse-transcription (RT)-PCR. TrkA, TrkB, and NGF mRNA levels decreased, whereas p75 mRNA increased, in ipsilateral SNL NuGr compared with SHAM; BDNF was undetectable. Decreased Trk mRNA may result in decreased NT activity in the NuGr. The p75 receptor influences Trk activity and cell survival, thus its role in PN warrants further investigation.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Goettl VM,Hussain SR,Alzate O,Wirtz DJ,Stephens RL Jr,Hackshaw KVdoi
10.1016/j.expneurol.2004.03.011keywords:
subject
Has Abstractpub_date
2004-06-01 00:00:00pages
533-6issue
2eissn
0014-4886issn
1090-2430pii
S0014488604001025journal_volume
187pub_type
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