[Genetic characteristics in yang deficiency patients].

With regard to genetic aspects, the authors determined the HLA typing in 50 cases of Yang deficiency (YD) syndrome and 230 healthy controls. Rohrer index and costae arcuarial angle were also measured in 50 cases of YD syndrome and 60 healthy controls. The results showed that the distributional frequencies of HLA-B5 (P less than 0.05), CW3 (P less than 0.01) and A9 (P less than 0.05) in YD were significantly lower than those in normal controls. It reflected the genetic characteristics of YD syndrome indirectly. The YD patients had higher Rohrer index (more than 1.50) than normal controls. The costae arcuarial angle of YD group was 80 +/- 14.35 degree (mean +/- SD), and that of normal controls was 69.5 +/- 11.83 degree. These indicated that fattiness was more often seen in the YD group.