Objective To analyze the characteristics of somatotypes of South Asian type, North Asian type and East Asian type, and to compare the main differences among them. Methods The characteristics of somatotypes among South Asian type, North Asian type and East Asian type in 29 Chinese Mongolian ethnic groups were compared by using the Heath-Carter anthropometric somatotype. The reasons for differences of South Asian type were that North Asian type were analyzed by using principal component analysis. Results The male groups of North Asian type were endomorphic mesomorph and the South Asian types were balanced mesomorph, while the East Asian types differed greatly from each other.The female groups of North Asian types and the East Asian types were mesomorphic endomorph and the South Asian types were endomorphic mesomorph. The somatotypes of East Asian types were similar to North Asian types but were greatly different from South Asian types.Principal components analysis showed that the main differences between South and North of male groups lied first in ectomorphy and then in endomorphy.The differences between female groups of South and North were mainly on endomorphy. Conclusion The ethnic group of North Asian type is higher than South Asian type in endomorphy but lower in ectomorphy.

Objective To explore the the correlation between cystatin C(Cys C),beta-2 microglobulin(β2-MG)and ischemic cerebral small vessel disease(CSVD)and its subgroups.Methods Totally 234 patients with CSVD were assigned to the study group,and 92 elderly people with no abnormal findings in head MRI were selected as controls.The CSVD patients were further divided into the subgroups of lacunar infarction(LI),white matter lesion(WML)and LI+WML.Each group was compared risk factors include the blood level of Cys C and β2-MG.Results There were statistically significant differences between CSVD group and control group in cystatin C(Cys C)and β2-MG(P<0.05).Cystatin C(Cys C)and β2-MG there were statistically significant differences between WML group and control group(P<0.05),and also between WML+LI group and control group(P<0.05).Logistic regression analysis and comparison across subgroups showed Cys C and β2-MG to be the common risk factors for WML group and WML+LI group inpatients with ischemic cerebral small vessel disease.Conclusion Cys C and β2-MG are the common risk factors for WML group and WML+LI group inpatients with ischemic cerebral small vessel disease.The risk factors vary across different CSVD subgroups.