摘要:目的:观察传统“热补”针法对实验性关节炎家兔的镇痛效应和探求其中枢作用机制。方法:以卵蛋白诱导的关节炎家兔为疼痛模型,连续治疗6 d后比较药物组、捻针组、电针组和热补组关节炎家兔关节局部痛阈和脑脊液中-βEP和CCK-8的含量。结果:治疗后各治疗组痛阈和-βEP含量均升高,热补组-βEP含量明显高于药物组和捻针组(P<0.01),但不及电针明显(P<0.05);各治疗组CCK-8含量均向正常水平恢复,热补组CCK-8含量比药物组和捻针组恢复明显(P<0.01),但不及电针组恢复显著(P<0.01)。结论:“热补”针法的镇痛效应和捻转针法、药物(痹冲剂)相同,但不及电针的镇痛效应;升高脑脊液中-βEP含量和促使CCK-8含量向正常水平恢复,可能是其镇痛的中枢机制之一。Objective: To observe the effect of heat-reinforcing needling manipulation on inflammatory pain and explore its analgesic mechanism in experimental rheumatoid arthritis rabbits.Methods: Fifty-two rabbits were randomized into control(n=9),model(n=9),medication(n=9),needle-twirling(n=9),electroacupuncture(EA,n=9) and heat-reinforcing(n=9) groups.Rheumatoid arthritis model was established by injecting mixed solution of egg-albumin((4 mg/mL)) and equal volume of complete Freund's adjuvant(CFA) into the subcutaneous tissue(6 points around the shoulder,(0.2 mL/point)),14 days later,the injection was repeated once again,another 6 days later,egg-albumin((0.4 mL),(20 mg/mL)) solution was injected into the bilateral knee-joints.Rabbits of medication group was fed with "Wangbi Granule"(■痹冲剂) 0.56 g/time(t.i.d.)."Zusanli"(ST 36) and "Hegu"(LI 4) were punctured and stimulated by twirling the needle leftward and rightward for(1 min)(needle retention(30 min)),or electrically((4/20 Hz),(0.5 ms) pulse-duration,2.4-(3.1 mA) and duration of(30 min)) or by manipulating the needle with heat-reinforcing method for(1 min)(needle-retention(30 min)).The treatment was conducted once daily and continuously for 6 days.The pain threshold(leg-withdrawal latency) was detected,and β-EP and CCK-8 contents in cerebrospinal fluid were assayed with radioimmunoassay.Results: Compared with control group,the pain threshold and CCK-8 contents of model group lowered significantly(P<0.01),and β-EP of model group increased significantly(P<0.05);while in comparison with model group,the pain threshold and CCK-8 contents of medication,needle-twirling,EA and heat-reinforcing groups increased significantly(P<0.05,0.01),and β-EP contents of the 4 treatment groups increased further considerably(P<0.05,0.01);and the effects of EA group were significantly superior to those of the other 3 treatment groups in raising pain threshold,and the contents of β-EP and CCK-8(P<0.05,0.01).The effects of heat-reinforcing group were significantly superior to those of needle-twirling and medication groups in raising β-EP and CCK-8 levels(P<0.01).Conclusion: Heat-reinforcing needling manipulation,Chinese herbal medicine,EA and needle-twirling method all have an analgesic effect in rheumatoid arthritis rats,which is probablyrelated to their effects in raising cerebral βEP and CCK-8 contents.
摘要:目的:通过观察穴位贴敷对慢性萎缩性胃炎大鼠胃动素、胃泌素含量的影响,探讨穴位贴敷治疗慢性萎缩性胃炎的作用机理。方法:40只大鼠随机分为空白组、模型组、中药组和穴位贴敷组共4组,采用喂养0.02%的氨水诱发慢性萎缩性胃炎大鼠模型。治疗组选取“足三里”穴、“中脘”穴进行穴位贴敷治疗,中药组选用胃苏冲剂灌胃。治疗结束后,用放免法检测各组大鼠胃动素、胃泌素的水平。结果:模型组大鼠的血清胃泌素含量减少,血浆胃动素含量升高(均P<0.01);穴位贴敷和对照药物均可增加血清胃泌素含量,降低血浆胃动素含量,但穴位贴敷优于对照药物。结论:穴位贴敷对粘膜的营养作用及调节胃肠蠕动的作用可能是通过调节胃肠激素,增加细胞保护作用而实现的。Objective: To observe the effect of acupoint application on motilin and gastrin in rats with chronic atrophic gastritis(CAG) in order to explore its mechanism.Methods: Forty SD rats were evenly and randomly divided into control,model,medication and acupoint-application groups.CAG model was established by feeding the rats with 0.02% ammonia solution continuously for 16 weeks.Ointment containing Dangshen(党参Radix Codonopsis Pilosulae),Huangqi(黄芪Radix Astragali seu Hedysari),Bingpian(冰片Borneolum),etc was applied to "Zusanli"(ST 36) and "Zhongwan"(CV 12) once daily,continuously for 2 months.Rats of medication group were infused with "Weisu Granule" made up of Sugeng(苏梗Caulis Perillae),Xiangfu(香附Rhizoma Cyperi),Chenpi(陈皮Pericarpum Citri Reticulatae),etc.Plasma motilin and serum gastrin contents were determined with radioimmunoassay respectively.Results: In comparison with control group,plasma motilin content increased significantly in model group(P<0.01) and serum gastrin content decreased considerably in model group(P<0.01);while compared with model group,plasma motilin content in acupoint application group decreased significantly and serum contents in medication group and acupoint application group increased considerably(P<0.01).No significant differences were found between model group and medication group in plasma motilin levels,and between medication group and acupoint application group in serum gastrin levels(P>0.05).Conclusion: Acupoint application can apparently regulate the levels of plasma motility and serum gastrin in CAG rats.