Materials

Human plasma and serum samples were provided by HUPO. These samples (total of 12) were from the pools of three ethnic groups including Caucasian American, African American and Asian American, and the plasma was treated with sodium citrate, lithium heparin, or K2EDTA (Tab. 1). Agarose-bound lectins (Con A, wheat germ agglutinin (WGA), and Jacalin lectin (JAC) were purchased from Vector Laboratories (Burlingame, CA, USA).

Tab. 1 Number of proteins identified in each plasma/serum sample

Ethnic group

Caucasian American

Asian American

African American

Sample type

CA

AA

AFA

Sodium citrate (CIT) plasma

76

63

69

K2EDTA (EDTA) plasma

71

84

75

Lithium heparin (HEP) plasma

75

81

90

Serum

78

74

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