Related Experiment Video
Updated: Feb 10, 2026

Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies
Published on: October 22, 2014
Genetic epidemiology and risk factors for brain tumors
Xuejun Li1, Hang Cao1, Yanhong Liu2
1Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China; Skull Base Surgery & Neuro-Oncology Institute, Xiangya Hospital, Central South University, Changsha 410008, China.
Abstract:
This report summarized current knowledge and findings relevant to environmental and genetic risk factors in brain tumors, with a particular focus on glioma. To date, the established risk factors for brain tumors are family history and ionizing radiation exposure; whereas there is an inverse association between tumors and other factors such as history of allergies, atopic conditions, chickenpox, and varicella zoster virus infection. To identify inherited genetic variants impacting susceptibility of brain tumors, large scale familial linkage-scan pedigree analysis, population-based candidate genes, and genome-wide association study were performed. More recently, next generation exome and whole genome sequencing studies were also conducted.
More Related Videos
Related Concept Videos
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
Introduction to Epidemiology
Causality in Epidemiology
Study Designs in Epidemiology
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
Confounding in Epidemiological Studies
Bias in Epidemiological Studies

