Cytomegalovirus and herpes simplex type 1 infections and immunological profile of community-dwelling older adults.

Autor: Noronha BP; Instituto René Rachou, Oswaldo Cruz Foundation (Fiocruz) Fiocruz Minas, Health Studies Center, Public Health and Aging, Belo Horizonte, Minas Gerais, Brazil., Mambrini JVM; Instituto René Rachou, Oswaldo Cruz Foundation (Fiocruz) Fiocruz Minas, Health Studies Center, Public Health and Aging, Belo Horizonte, Minas Gerais, Brazil. Electronic address: juliana.mambrini@fiocruz.br., Torres KCL; Instituto René Rachou, Oswaldo Cruz Foundation (Fiocruz) Fiocruz Minas, Integrated Research Group on Biomarkers, Belo Horizonte, Minas Gerais, Brazil; José do Rosário Vellano University - UNIFENAS, Belo Horizonte, Minas Gerais, Brazil., Martins-Filho OA; Instituto René Rachou, Oswaldo Cruz Foundation (Fiocruz) Fiocruz Minas, Integrated Research Group on Biomarkers, Belo Horizonte, Minas Gerais, Brazil. Electronic address: olindo.filho@fiocruz.br., Teixeira-Carvalho A; Instituto René Rachou, Oswaldo Cruz Foundation (Fiocruz) Fiocruz Minas, Integrated Research Group on Biomarkers, Belo Horizonte, Minas Gerais, Brazil. Electronic address: andrea.teixeira@fiocruz.br., Lima-Costa MF; Instituto René Rachou, Oswaldo Cruz Foundation (Fiocruz) Fiocruz Minas, Health Studies Center, Public Health and Aging, Belo Horizonte, Minas Gerais, Brazil. Electronic address: lima.costa@fiocruz.br., Peixoto SV; Instituto René Rachou, Oswaldo Cruz Foundation (Fiocruz) Fiocruz Minas, Health Studies Center, Public Health and Aging, Belo Horizonte, Minas Gerais, Brazil; Federal University of Minas Gerais, Nursing School, Department of Health Management, Belo Horizonte, Minas Gerais, Brazil. Electronic address: sergio.peixoto@fiocruz.br.
Jazyk: angličtina
Zdroj: Experimental gerontology [Exp Gerontol] 2021 Jul 01; Vol. 149, pp. 111337. Date of Electronic Publication: 2021 Mar 31.
DOI: 10.1016/j.exger.2021.111337
Abstrakt: Chronic infections, such as cytomegalovirus (CMV) and herpes simplex virus type 1 (HSV-1), contribute to the inflammation process among older adults and are associated with the immunosenescence process. The aim was to identify the immunological profile associated with CMV and HSV-1 infections among older adults. This is a cross-sectional study, carried out with 1492 participants from the Bambuí Cohort Study of Aging - Minas Gerais, Brazil. For analysis purposes, we considered the presence of immunoglobulin G (IgG) for CMV and HSV-1 in the participants' serum, assessed by the enzyme-linked immunosorbent assay (ELISA); outcomes were defined by titration above the median (>160 UR/mL for HSV-1 and >399.5 U/mL for CMV). In order to assess the immunological profile, the following biomarkers were considered: IL-1beta, IL-10, IL-12, TNF, CXCL8, CXCL9, CXCL10, CCL2, CCL5, IL-6 and CRP; the first four being categorized as detectable levels or not, and the others using the Classification and Regression Tree (CART) method. The analysis was adjusted for sociodemographic variables, health behaviors and health conditions. The seroprevalence of anti CMV and anti HSV-1 antibodies was 99.4% and 97.0%, respectively. Higher concentrations of CXCL8 and CCL5 chemokines were associated with lower antibody titers for CMV, and higher concentrations of CXCL9, IL-6 and CRP were associated with higher levels of antibodies to CMV. Moreover, intermediate levels of CXCL10 were also associated with higher levels of antibodies to CMV. In HSV-1 infection, intermediate levels of CXCL9, CCL5 and IL-6 were less likely to have higher antibody titers for this infection. On the other hand, higher levels of CXCL10 and CRP were positively associated with higher antibody titers for HSV-1. The results describe important immunological changes and reinforce the potential effect of CMV and HSV-1 on the immunosenescence process.
(Copyright © 2021 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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