Abstract:
PURPOSE:The treatment of central neuropathic pain remains amongst the biggest challenges for pain specialists. The main objective of this study was to assess gabapentin (GBP), amitriptyline (AMI), and carbamazepine (CARBA) for the treatment of a rodent central neuropathic pain model. METHODS:Male Sprague Dawley rats were trained on the rotarod, Hargreaves, Von Frey and acetone behavioral tests, and baseline values were obtained prior to surgery. A stereotaxic injection of either a collagenase solution or saline was made in the right ventral posterolateral thalamic nucleus. The rats were tested on days 2, 4, 8, and 11 postsurgery. They were retested at regular intervals from day 15 to day 25 postsurgery, after oral administration of either the vehicle (n=7 and n=8 rats with intracerebral injections of collagenase and saline, respectively) or the different drugs (GBP [60 mg/kg], AMI [10 mg/kg], CARBA [100 mg/kg]; n=8 rats/drug). RESULTS:A significant decrease in the mechanical thresholds and no change in heat threshold were observed in both hind limbs in the collagenase group, as we had previously shown elsewhere. Reversal of the mechanical hypersensitivity was achieved only with GBP (P<0.05). AMI and CARBA, at the dosages used, failed to show any effect on mechanical thresholds. Transient cold allodynia was observed in some collagenase-injected rats but failed to be statistically significant. CONCLUSION:Intrathalamic hemorrhaging in the ventrolateral thalamic nucleus induced a bilateral mechanical allodynia, which was reversed by GBP but not AMI or CARBA.
journal_name
J Pain Resjournal_title
Journal of pain researchauthors
Castel A,Vachon Pdoi
10.2147/JPR.S55201subject
Has Abstractpub_date
2013-12-17 00:00:00pages
5-12issn
1178-7090pii
jpr-7-005journal_volume
7pub_type
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journal_title:Journal of pain research
pub_type: 杂志文章
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journal_title:Journal of pain research
pub_type: 杂志文章
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更新日期:2016-10-03 00:00:00
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journal_title:Journal of pain research
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journal_title:Journal of pain research
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更新日期:2016-12-29 00:00:00
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journal_title:Journal of pain research
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journal_title:Journal of pain research
pub_type: 杂志文章
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更新日期:2020-12-22 00:00:00
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journal_title:Journal of pain research
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journal_title:Journal of pain research
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更新日期:2017-11-06 00:00:00
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journal_title:Journal of pain research
pub_type: 杂志文章,评审
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更新日期:2019-03-29 00:00:00
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journal_title:Journal of pain research
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journal_title:Journal of pain research
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更新日期:2020-10-14 00:00:00
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journal_title:Journal of pain research
pub_type: 杂志文章
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abstract::Purpose: It has been reported that neck pain is more prevalent in episodic migraineurs (EM) than in the general population. Subjects with episodic migraine exhibited widespread hypersensitivity in cranio-cervical region. Our objectives were to explore the potential factors associated with the presence of neck pain for...
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pub_type: 杂志文章
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journal_title:Journal of pain research
pub_type: 杂志文章
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更新日期:2018-10-26 00:00:00
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journal_title:Journal of pain research
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journal_title:Journal of pain research
pub_type: 杂志文章
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更新日期:2018-02-19 00:00:00
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更新日期:2017-01-13 00:00:00
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journal_title:Journal of pain research
pub_type: 杂志文章
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更新日期:2009-09-15 00:00:00