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With traditional epidemiologic research designs, few environmental risk factors for malignant brain tumors have been revealed, and although syndromes exist where brain tumors occur frequently, these explain a small proportion of the overall incidence. In a similar way, the search for genetic causes has been thwarted by the rarity of families with multiple affected relatives, inhibiting genetic linkage, sib-pair, or even population-based association studies. Molecular genetic studies generally involve searching for candidate proto-oncogenes and tumor suppressor genes by comparing DNA from tumor material with constitutional (germline) DNA. However, it remains difficult to distinguish causative genetic aberrations from chaotic neoplastic processes, and studies so far have not yielded consistent information on the location of such causative genetic lesions. The current literature covering the molecular genetics of glioma is discussed herein and alternative approaches that can be used to identify genetic causes of glioma described.

Original publication

DOI

10.1212/wnl.57.10.1751

Type

Journal article

Journal

Neurology

Publication Date

27/11/2001

Volume

57

Pages

1751 - 1755

Keywords

Adult, Aged, Astrocytoma, Brain Neoplasms, Causality, Cell Transformation, Neoplastic, Cross-Sectional Studies, Female, Glioblastoma, Humans, Male, Middle Aged, Molecular Biology, Netherlands, Pedigree