[Responsive properties of afferent units of the superficial branch of radial nerve in diabetic neuropathic patients].
By means of intraneural microrecording (INMR), changes of mechanical threshold and conduction velocity (CV) of A beta mechanical receptive units and A delta units of the superficial branch of the radial nerve and their response to sympathetic efferent were studied in 8 diabetic neuropathic patients. The results showed that the CV of these units was significantly decreased, and so was the mechanical threshold of A delta units. During the aftermath of excitation of the skin sympathetic nerve by mental arithmetics, 3/12 A delta units were turned to the active state with decreased mechanical threshold.
Liu
J
J
Department of Brain and Nerve, Xian Medical University.
Wang
K M
KM
Cao
D Y
DY
He
L Z
LZ
D000293:Adolescent; D000320:Adrenergic Fibers / Q000502:physiology; D000328:Adult; D000344:Afferent Pathways; D003929:Diabetic Neuropathies / Q000503:physiopathology*; D004594:Electrophysiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009431:Neural Conduction; D011826:Radial Nerve / Q000503:physiopathology*