[Effects of curcumin on TNF-alpha and TGF-beta1 in serum and lung tissue of SiO2-induced fibrosis in mice].

Aim: To study the effects of curcumin on TNF-alpha and TGF-beta1 in serum and lung tissue of SiO2-induced fibrosis in mice.

Methods: 75 mice were divided into five groups. After treated with curcumin 6 and 9 mice of each group were sacrificed on day 14 and 42 respectively to take their blood and lung tissue.

[Clinical value of the detection of hepatitis C virus core antigen].

Aim: To explore the value of detecting hepatitis C virus core antigen in HCV infected diseases.

Methods: The HCV-RNA was tested by fluorescent quantitative polymerase chain reaction (FQ-PCR). The core antigens of HCV and anti-HCV were tested by enzyme-linked immunosorbent assay (ELISA).

[Analysis on clinical and epidemiological characteristics of 1032 patients with Dengue fever in Guangzhou].

Objective: To analyze the clinical and epidemiological characteristics of Dengue fever (DF) during the Dengue-1 epidemic in Guangzhou.

Methods: Clinical and epidemiological data of 1032 patients with DF from May 2002 to November 2003 were retrospectively analyzed. Dengue virus were isolated by cell culture and typed by reverse transcriptase polymerase chain reaction (RT-PCR).

[Analysis on the epidemiological features and risk factors of hospital workplace violence in Guangzhou].

Objective: To study the epidemiological features and relevant risk factors of hospital workplace violence.

Methods: A retrospective study using logistic regression on hospital staff was carried out. Based on WHO's last definition for workplace violence from "new research showing workplace violence threatening health services" issued on May 10th, 2002.