[Effects of nerve growth factor on proliferation of hepatic stellate cells].

Objective: To determine the effects of nerve growth factor (NGF) on proliferation of hepatic stellate cells (HSCs) and investigate the related molecular mechanism.

Methods: After incubating cultured HSCs for 24 h with different concentrations of NGF (100, 200 or 400 ng/mL), the cell proliferation was observed by XTT colorimetric assay and cell cycle was detected by flow cytometry. Morphological changes in response to a 24 h exposure to 100 ng/mL NGF were observed by transmission electron microscopy.

[Preliminary study on mechanism of therapeutic effect of Huganjiexian decoction on hepatic fibrosis].

Objective: To observe the effects of Huganjiexian decoction on rat hepatic fibrosis and the creation of cytokines.

Methods: Rat hepatic fibrosis was induced by intraperitoneally injection of carbon tetrachloride. At the same time, these rats were treated with different dosages of Huganjiexian decoction.

Airway foreign body removal by flexible bronchoscopy: experience with 1027 children during 2000-2008.

Background: Foreign body aspiration (FBA) into the tracheobronchial tree is a common problem in children necessitating prompt recognition and management. This study aimed to report our experience in airway foreign body removal by flexible bronchoscopy in children.

Methods: A total of 1027 patients with FBA were reviewed retrospectively.