This type of suppression could be of great clinical value in cases of chronic pain, since one school of thought is that the brain recruits more and more "real estate" the longer it goes on. So if you can suppress those inputs, perhaps the vexing chronic pain pattern may diminish. Full article at the link. (For more information about my practice, please click here.)
Received December 8, 2010; Accepted June 7, 2011.
Background
Electrical
acupuncture (EA) has been utilized in acute pain management. However,
the neuronal mechanisms that lead to the analgesic effect are still not
well defined. The current study assessed the intensity [optimal EA
(OI-EA) vs. minimal EA (MI-EA)] effect of non-noxious EA on supraspinal
regions related to noxious heat pain (HP) stimulation utilizing an EA
treatment protocol for acute pain and functional magnetic resonance
imaging (fMRI) with correlation in behavioral changes. Subjects
underwent five fMRI scanning paradigms: one with heat pain (HP), two
with OI-EA and MI-EA, and two with OI-EA and HP, and MI-EA and HP.
Results
While
HP resulted in activations (excitatory effect) in supraspinal areas
known for pain processing and perception, EA paradigms primarily
resulted in deactivations (suppressive effect) in most of these
corresponding areas. In addition, OI-EA resulted in a more robust
supraspinal sedative effect in comparison to MI-EA. As a result, OI-EA
is more effective than MI-EA in suppressing the excitatory effect of HP
in supraspinal areas related to both pain processing and perception.
Conclusion
Intensities of EA plays an important role in modulating central pain perception.
No comments:
Post a Comment