Glutathione S-transferase M1 polymorphism and esophageal cancer risk: An updated meta-analysis based on 37 studies.

Aim: To evaluate the relationship between glutathione S-transferase M1 (GSTM1) polymorphism and susceptibility to esophageal cancer (EC).

Methods: A comprehensive search of the United States National Library of Medicine PubMed database and the Elsevier, Springer, and China National Knowledge Infrastructure databases for all relevant studies was conducted using combinations of the following terms: "glutathione S-transferase M1", "GSTM1", "polymorphism", and "EC" (until November 1, 2014). The statistical analysis was performed using the SAS software (v.

[The trend of cancer mortality from 1988 to 2005 in Kaifeng county, China].

Objective: To investigate the time trends of cancer mortality among residents in Kaifeng county, Henan province.

Methods: Data on cancer mortality from the vital registration system in Kaifeng county from 1988 to 2005 was analyzed. A total of 9543 death records (5974 males and 3567 females) due to malignant tumors were studied.

[Effects of genistein on proliferation and apoptosis in HT-29 cells].

Objective: The study is to explore the effects of genistein on proliferation and apoptosis in human colon cancer HT-29 cells and the likely underlying molecular mechanisms.

Methods: HT-29 cultures were maintained in DMEM containing 10% fetal bovine serum. Cell proliferation was determined by MTT assay and cell cycle distribution by cytometry.

Effects of fat-soluble extracts from vegetable powder and beta-carotene on proliferation and apoptosis of lung cancer cell YTMLC-90.

Objective: The aim of this investigation was to study the effects of fat-soluble extracts from vegetable powder (FEFVP) and beta-carotene on the proliferation and apoptosis of cultured YTMLC-90 lung cancer cells.

Methods: The lung cancer cells were continuously exposed to a broad range of concentration of FEFVP and beta-carotene. The proliferation was evaluated in MTT test.