一般认为机体对疾病的抵抗力与机体的免疫功能状态有一定的关系

患病机体常常表现出免疫功能的异常。补体是正常人血清中非特异性体液免疫因素

一方面参与机体的防御机能

可促使特异性机体发挥作用

另一方面在免疫损伤中也发挥重要作用

血清补体水平的变化也可反映机体防御机能的状态或者某些免疫病理过程的存在。我们曾观察到电针穴位有增强正常人细胞免疫功能的作用。本工作试图通过电针对正常人血清某些补体成份影响的观察

进一步分析The aim of this study was to observe the effects of EA on some co- mponents of complement system in normal man

and further analyse the significance of acupuncture in preventive medicine. Normal volunteers were divided into two groups. (1)EA group: two ac- upoints "Zusanli" and "Yanglingquan" or "Fenglong" were stimulated by EA. (2)Control group: no stimulation of EA. The EA group was given EA for 15 miuutes

once every other day

totalled 3 times. It was taken as the limit of strength of EA that the subject got the local numbness and fullness sensation or conpuctible needling sensation. The two groups of the subjects were tested for serum comblement 3(C3)

complement 4(C4) and properdin B factor (PFB) contents. Then the effects of EA and the relation of age with the effect of EA were analysed. The resnlts were as follows: The content C3 was no significant change after EA (n=20)

p>0.3. But in two cases of them C3 content was remarked lower than normal level which was recovered to the normal lerel after EA. The content of C4 significantly increased after EA (n=20)

p=0. 05. The content of PFB also significantly increased in EA group (n=25)

p<0. 05

But had no signi- ficant change in control group. The effects of EA in youth group(8 or 7 cases

age 20-27) were more obvious than in elder group (8 or 7 cases

age 41-53). The increased per- centages of C3

C4

PFB after EA were as follows: In youth group: C3

2. 98 %; C4

15. 40%; PFB

30. 85%. In elder group: C3

1.49 %; C4

5.339 %; PFB 10.31 %. The results indicated that some components of complement system in normal man could be significantly increased by EA. It was suggested that these unspecialized immune substances were increased by acupuncture to improve the immune function and increase the effect of physical preven- ting diseases. And it seemed that the acupuncture effects in youth were more remarked than in eider