[Effects of the scalp acupuncture at baihui (DU20) through qubin (GB7) on the expressions of GDNF VEGF in the brain tissue of rats with acute intracerebral hemorrhage].

OBJECTIVE: To observe the effects of the scalp acupuncture at Baihui (DU20) through Qubin (GB7) on the expressions of glial cell line-derived neurotrophic factor (GDNF) and vascular endothelial growth factor (VEGF) in the brain tissue of rats with acute intracerebral hemorrhage (AICH).

METHODS: Totally 150 healthy male Wistar rats were used to prepare the intracerebral hemorrhage (ICH) model. They were randomly divided into the model group, the acupuncture group, and the Western medicine group, 50 in each group. Rats in each group were then randomly divided into five subgroups, i. e., 6 h, day 1, day 2, day 3, and day 7, 10 in each subgroup. Another 10 normal rats were recruited as the blank control group. Rats in the acupuncture group were acupunctured at Baihui (DU20) through Qubin (GB7) on the lesion side. Rats in the Western medicine group were administered with aniracetam diluent 1 mL by gastrogavage, 3 times daily. Rats in the model group were bound the same way as those in the acupuncture group 30 min daily, and then administered with normal saline 1 mL by gastrogavage, 3 times daily. The expressions of GDNF and VEGF in the brain tissue of the rats in each group were detected using in situ hybridization and immunohistochemical methods.

RESULTS: Compared with the blank control group, the number of GDNF positive cells in the model group increased at 6 h-3 days, and the number of VEGF positive cells in the model group increased at each time point, showing statistical difference (P<0.01). The numbers of GDNF positive cells increased in the acupuncture group at each time point, showing statistical difference when compared with those of the model group and the Western medicine group (P<0.01). There was no statistical difference between the model group and the Western medicine group at each time point (P>0.05). Compared with the model group, the number of VEGF positive cells in the acupuncture group decreased at 6 h -3 days. The VEGF positive cells increased at day 7 and were higher than that of the Western medicine group, showing statistical difference (P<0.01).

CONCLUSIONS: The scalp acupuncture at Baihui (DU20) through Qubin (GB7) played the role of nerves remodeling in AICH possibly through promoting the expression of endogenous GDNF and early inhibiting the expression of VEGF in the AICH. This method possibly had favorable bidirectional regulation effects in AICH. Its therapeutic effects were superior to Aniracetam.