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Arch Virol. 2019 May;164(5):1249-1257. doi: 10.1007/s00705-019-04206-z. Epub 2019 Mar 19.

Evidence based on a meta-analysis of human cytomegalovirus infection in glioma.

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Institute of Health Science, Federal University of Goiás, Jatai, GO, Brazil.
Institute of Health Science, Federal University of Goiás, Jatai, GO, Brazil.
Department of Biochemistry and Immunology, University of São Paulo, Ribeirão Preto, Brazil.
Department of Cellular Biology, University of Brasília, Brasília, DF, Brazil.


Malignant gliomas are the most common types of incurable primary brain tumours. Therefore, to better clarify the aetiology and pathogenesis of the disease and analyse the risk factors involved, several researchers have highlighted a possible link to human cytomegalovirus (HCMV). Regarding this potential link, the numbers of studies and controversies concerning the relationship between HCMV infections and malignant gliomas have significantly increased. Therefore, we conducted a meta-analysis of observational studies to summarize and pool the available results on the association of HCMV in patients with glioma. Our meta-analysis was based on the PRISMA algorithm, using fixed/random models through STATA IC 13.1 software. Thus, 32 studies were included with a total of 2,190 participants/specimens (glioma, n = 1,871; non-glioma, n = 319). The overall estimate of combined HCMV frequency in patients with glioma was 63% (95% confidence interval [CI]: 56-70). There was an association between HCMV infection and glioma (adjusted OR = 3, 95% CI: 1.7-5.3). The pooled subgroup analysis of viral markers also showed a positive association between the pp65 protein (OR = 3.1, 95% CI: 1.8-5), and gB nucleic acids (OR = 3.1, 95% CI: 1.1-8). For the viral marker IE1-72 protein, the pooled frequency and association results were higher. However, there was no correlation of higher viral association according to the histological subtypes and low/high grade of gliomas. In conclusion, the available evidence suggests an association between HCMV and glioma. Consequently, precautions should be taken, as discussed in this report.

[Indexed for MEDLINE]

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