补中益气汤对脾虚型变应性鼻炎的治疗作用

目的 探讨补中益气汤对脾虚型变应性鼻炎(AR)豚鼠模型的影响。方法 将花色豚鼠随机分为AR(A)组、AR 脾气虚(B)组、补中益气汤(C)组和空白对照(D)组。各组用卵清蛋白(D组用生理盐水代替)行基础致敏，结束后行PCA试验，确定卵清蛋白IgE抗体效价升高后，以卵清蛋白滴入鼻腔行局部致敏(D组滴入生理盐水)，C组同时给予灌胃补中益气汤(5．6g／kg)，观察豚鼠鼻部症状的变化。实验结束时处死豚鼠，行鼻分泌物涂片子找嗜酸细胞(EOS)及取鼻粘膜病理切片子找嗜酸细胞与肥大细胞。结果 A、B、C组在局部致敏的前期，均出现了抓鼻、打喷嚏、流清涕等典型的鼻部症状，至后期，C组鼻部症状减轻；C、D组鼻分泌物及鼻粘膜EOS阳性率均低于A、B组，而C、D组之间别无显著性差异；鼻粘膜肥大细胞计数C组亦低于A、B组。结论 补中益气汤能抑制脾虚AR豚鼠鼻粘膜嗜酸细胞及肥大细胞的浸润，从而改善鼻部症状。

Effect of Buzhong Yiqi Decoction for Allergic Rhinitis with Spleen- qi Deficiency in Guinea Pigs

Objective To investigate the effect of Buzhong Yiqi Decoction for allergic rhinitis(AR)with spleen -qi de-ficiency in guinea pigs.Methods AR guinea -pig model was established by intraperitoneal injection of ovalbumin for general sensitization and then by nasal drip of ovalbumin for local sensitization.Spleen -qi deficiency mod el was induced by gastric infusion of cold -maceration extract of Radix et Rhizoma Rhei.Fifty -four guinea pigs were randoml y allocated to four groups:AR group(Group A),AR model with spleen -qi deficiency group(Group B),AR model with spleen -qi deficiency treated by Buzhong Yiqi group(Group C)and blank control group(Group D).Nasal symptoms were observed.The number of eosinophils(EOS )in nasal secretion was detected by sm ear cytologic examination and the number of EOS and mastocyte in nasal mucosa was exa mined by pathological section.Results Before local sensitization,nasal s ymp-toms such as nose scratching,sneezing and nasal discharge in Group A,Gro up B and Group C were severer than those in Group D and were improved in Group C in the late stage.Positive rate of EOS i n nasal secretion and nasal mucosa of Group C and Group D was lower than that in Group A and Group B and the differen ce was insignificant between Group C and Group D.The number of mastocyte i n Group C was lower than that in Group A and Group B.Conclusion Buzhong Yiqi Decoction can relieve nasal symptom s in AR Guinea pigs with spleen -qi deficiency by counteracting the infiltration of EOS and the increase of nastocytes in nasal mucosa.