[The protective effect of chlorophyllin against oxidative damage and its mechanism].

Objective: To investigate whether chlorophyllin could protect human umbilical vein endothelial cell (HUVEC) against oxidative damage by inducing the expression of heme oxygenase-1 (HO-1) and to explore the underlying mechanism.

Methods: The cellular protection of chlorophyllin against oxidative damage was detected by cell-survival assay with flow cytometry. The level of free radicals was detected directly by electron spin resonance spectra.

[Analysis of developing feature of pneumoconiosis].

Objective: To get the message about the developing feature of pneumoconiosis by analyzing the data from 353 cases of pneumoconiosis diagnosed in our hospital recent 6 years.

Methods: To analyze the onset age, onset service years and incubation period of 353 cases of pneumoconiosis, especially in silicosis, coal worker's pneumoconiosis and potter's pneumoconiosis.

Results: 353 patients referred to 10 species of pneumoconiosis, the silicosis, coal worker's pneumoconiosis and potter's pneumoconiosis were accounted for 28.

[Effects of baicalin on pulmonary functions of acute respiratory distress syndrome induced by oleic acid in rats].

Objective: To investigate the effect of baicalin on pulmonary functions and its mechanism during the development of acute respiratory distress syndrome (ARDS) induced by oleic acid (OA) in rats.

Methods: Rats were randomized into 5 groups: control, ARDS (OA induction, 0.12 mg/kg), baicalin-treated group (150 mg/kg), baicalin-treated group (300 mg/kg) and baicalin-treated group (450 mg/kg).