RESUMO
Objective To investigate the efficacy of transverse insertion of thick needles into the Du meridian in treating rat ischemic facial paralysis and preliminarily explore the possible mechanism by which it produces a therapeutic effect. Methods Sixty Wistar rats were randomly allocated to groups A (transverse insertion of thick needles), B (basic Western drugs), C (blank control) and D (sham operation), 15 rats each. A rat model of ischemic facial paralysis was made using a modified vascular occlusion method in all the rats. Facial nerve deficits were scored in every group of rats during treatment. At 1 day after model making, group A was treated by transverse insertion into point Shendao and 4-hour retention of needle, once daily, for a total of 14 days; group B was treated by an oral gavage of prednisone and intraperitoneal injection of vitamine B12, once daily, for a total of 14 days. Groups C and D were not treated. In 4 rats randomly chosen at 3, 7 or 14 days after model making, facial nerve concomitant intrinsic vascular tissue HIF-1αprotein was measured by an immunohistochemical method; serum NO, by enzyme-linked immunosorbent assay; serum ET content, by radioimmunoassay.Results After 7 days of treatment, the neurological deficit score increased gradually in groups A and B and there was a statistically significant difference compared with after model making in the two groups (P<0.01). After 7 days of treatment, there was a statistically significant difference in the neurological deficit score in groups A and B compared with groups C and D (P<0.05) and between groups C and D (P<0.05). After 14 days of treatment, there was a statistically significant difference in the neurological deficit score between group A or B and group C (P<0.05) and between group B or C and group D (P<0.05). In group A, there was a statistically significant difference in the neurological deficit score after 14 days of treatment compared with after 7 days of treatment (P<0.05). After 3, 7 and 14 days of treatment, there was a statistically significant difference in HIF-1αMOD value in groups A , B and C compared with group D (P<0.01). After 3 and 7 days of treatment, there was a statistically significant difference in HIF-1αMOD value between group A or B and group C (P<0.05). In groups A and B, there was a statistically significant difference in HIF-1αMOD value after 3 and 14 days of treatment compared with after 7 days of treatment (P<0.05). After 3 and 7 days of treatment, there was a statistically significant difference in serum NO content between group A or B and group D (P<0.01). In groups A and B, there was a statistically significant difference in serum NO content after 7 days of treatment compared with after 3 days of treatment (P<0.05). After 3 and 7 days of treatment, there was a statistically significant difference in serum ET content in groups A , B and C compared with group D (P<0.05). In groups A and B, there was a statistically significant difference in serum ET content after 7 days of treatment compared with after 3 days of treatment (P<0.05).Conclusions Transverse insertion of thick needles into the Du meridian can effectively promote rat’s recovery from ischemic facial paralysis. The mechanism by which it produces a therapeutic effect may be regulating the expression of tissue HIF-1α and the NO and ET contents of serum.
RESUMO
Objective To compare the clinical efficacies of transverse insertion of a thick needle into point Shendao(GV11) versus conventional acupuncture in treating facial neuritis of different durations.Method Two hundred and twenty patients meeting the inclusion criteria were randomly allocated to thick needle and tradition groups. The two groups separately received corresponding treatment in addition to oral administration of Western medicine. The therapeutic effects were evaluated using the House-Brackmann rating scale and the Portmann's Simple Scale (RPA) for facial symptoms and compared after two courses of treatment.Result The therapeutic effect was better, posttreatment H-B rating scale score was lower and posttreatment RPA score was higher in the thick needle group than in the tradition group; there were statistically significant differences (P<0.05). Different durations of disease affected the therapeutic effect. In the thick needle group, the therapeutic effect was better in the patients in the early stage than in the middle and late stages; there was a statistically significant difference (P<0.05). The cure rate was higher in the patients in the early and middle stages in the thick needle group than in the tradition group; there was a statistically significant difference (P<0.05). Conclusion Transverse insertion of a thick needle into point Shendao has a definite therapeutic effect on facial neuritis. It is safe, easily performed and of an advantage over conventional acupuncture.
