Needle manipulation
control group (n=22)
Needle without movement
60 80
20
40
Time in minutes
4
Decay of the Effect of Acupuncture Analgesia Half life (T1/2) = 16 min
Procaine infiltration + Acupuncture
Time in minutes
6
Moving from mechanical to electrical stm. --- Parameters of Electrical Stimulation
• Frequency (2 Hz – 100 Hz) • Intensity 50X
Synergy Between Neuropeptides
Enk Dyn Enk + Dyn
Peptide released CNS
2Hz 0 3
100Hz 6
2Hz
100Hz
9
12
15
Stimulation time (sec.) 13
Synergistic interaction between morphine and Enk
Enk AB blocks low freq EAA
EA Analgesia 电针镇痛效应
50
Dyn AB blocks high freq EAA
n = 13 – 14 rats
0
2
4
8
16
32
64
128
Frequency of EA (Hz) EA Frequency, Hz