[Expression and clinical significance of calcium-binding protein S100A9 in breast cancer].

Aim: To investigate the expression and clinical significance of calcium-binding protein S100A9 in the patients of breast cancer.

Methods: The serum S100A9 level from 39 cases of preoperative breast cancer, 15 postoperative patients, and 10 healthy women was detected by ELISA. Immunohistochemistry was used to detect the S100A9 expression in 12 specimens of breast cancer tissues.

[Serological antibodies comparison of a hepatitis E outbreak].

Objective: To compare the serological characters of an outbreak of hepatitis E and evaluate sensitivity and specificity of anti-HEV E2-IgM.

Methods: The sera collected from the employees of an outbreak unit were detected for anti-HEV E2-IgM and IgG, and the serum samples from a neighboring department were used as control. The results detected with anti-HEV E2-IgM, IgG and Genelab anti-HEV IgM, IgG in some samples were compared.

[Serological characteristics of a hepatitis E outbreak].

Objective: To look into the serological characteristics of a hepatitis E outbreak.

Methods: Sera from the first five patients with acute icteric hepatitis who developed the disease successively within ten days and the 1,675 employees routinely having their lunch in a dining hall of a department (outbreak population) were examined for anti.HEV IgM and IgG at 26th days after the outbreak, and the 883 employees of a neighboring department not having their lunch in the hall were selected as control (control population).