Research progress in the molecular epidemiology of gastric cancer / 中国肿瘤临床

Gastric cancer is a malignant tumor characterized by high morbidity and mortality. With the development of molecular biol-ogy technology and the emergence of various new omics detection techniques in recent years, molecular epidemiologists of gastric cancer have conducted extensive studies on the genetic and host factors, as well as gene-environment interactions associated with ex-posure to environmental factors in gastric cancer. In addition, epidemiologists have studied the evolution of precancerous gastric le-sions, the development of gastric cancer, and explored relevant biomarkers to provide major evidence for the prevention and control of gastric cancer. This review summarizes the latest advances in the molecular epidemiology of gastric cancer, including existing evi-dence in studies for candidate-approach-based serum/plasma biomarkers, genome-wide association, whole-exome sequencing, tissue microarrays, as well as studies on metabolomics and microbiomes. We expect to provide insights into the future of molecular epidemi-ology studies in gastric cancer, promoting etiologic research, and the precise prevention and control of gastric cancer.

Experience of stroke prevention-Enlightenment for cancer research / 中华预防医学杂志

Cancer, stroke and heart diseases are most common causes of death. This paper summarized the experience of stroke prevention, which is an enlightenment for cancer research. In addition, this paper also described the progress of cancer epidemiological research, particular the primary and second preventions in China.

Relationship between RUNX3 expression and precancerous gastric lesions in high-risk population / 北京大学学报(医学版)

Objective:To evaluate the association between RUNX3 expression and Helicobacter pylori(H.pylori)-associated precancerous gastric lesions.Methods: A population-based study was conducted in Linqu County,Shandong Province,a high-risk area of gastric cancer in China.RUNX3 expression was determined by immunohistochemistry analysis in 1 026 H.pylori infected subjects with different gastric lesions.Results: Among 1 026 subjects,359(35.0%,359/1 026) was positive.The prevalence rates of RUNX3 expression decreased steadily with severity of gastric lesions,65.6%(40/61) among those with superficial gastritis /normal(SG/N),and 22.4%(60/268) among those with dysplasia(DYS)(P