Objective To observe the clinical effect of Guanyin mixture on infantile anorexia with lung and spleen deficiency and investigate its mechanism.Methods All 42 children with lung and spleen deficiency of infantile anorexia were divided randomly into test group treated with Guanyin mixture and control group with Shenling Baizhu mixture,and the serum Leptin concentration and plasma CCK concentration were examined with radioimmunoassay.Results The effect of Guanyin mixture was superior to Shenling Baizhu mixture(P〈0.05),the levels of plasma CCK ...