Ontology highlight
ABSTRACT: Background
In this study, we aimed to investigate the specific-antibody response to the COVID-19 vaccination and the immunophenotyping of T cells in older adults who were engaged or not in an exercise training program before the pandemic.Methods
Ninety-three aged individuals (aged between 60 and 85 years) were separated into 3 groups: practitioners of physical exercise vaccinated with CoronaVac (PE-Co, n = 46), or vaccinated with ChadOx-1 (PE-Ch, n = 23), and non-practitioners vaccinated with ChadOx-1 (NPE-Ch, n = 24). Blood samples were collected before (pre) and 30 days after vaccination with the second vaccine dose.Results
Higher IgG levels and immunogenicity were found in the PE-Ch and NPE-Ch groups, whereas increased IgA levels were found only in the PE-Ch group post-vaccination. The PE-Co group showed a positive correlation between the IgA and IgG values, and lower IgG levels post-vaccination were associated with age. Significant alterations in the percentage of naive (CD28+CD57-), double-positive (CD28+CD57+), and senescent (CD28-CD57+) CD4+ T and CD8+ T cells were found post-vaccination, particularly in the PE-Ch group.Conclusions
The volunteers vaccinated with the ChadOx-1 presented not only a better antibody response but also a significant modulation in the percentage of T cell profiles, mainly in the previously exercised group.
SUBMITTER: Silva BR
PROVIDER: S-EPMC9915291 | biostudies-literature | 2023 Jan
REPOSITORIES: biostudies-literature
Silva Brenda Rodrigues BR Monteiro Fernanda Rodrigues FR Cezário Kizzy K Amaral Jônatas Bussador do JBD Paixão Vitória V Almeida Ewin Barbosa EB Santos Carlos André Freitas Dos CAFD Amirato Gislene Rocha GR Oliveira Danielle Bruna Leal DBL Durigon Edison Luiz EL Aguiar Andressa Simões AS Vieira Rodolfo P RP Santos Juliana de Melo Batista Dos JMBD Furtado Guilherme Eustáquio GE França Carolina Nunes CN Shio Marina Tiemi MT Bachi André Luis Lacerda ALL
International journal of environmental research and public health 20230120 3
<h4>Background</h4>In this study, we aimed to investigate the specific-antibody response to the COVID-19 vaccination and the immunophenotyping of T cells in older adults who were engaged or not in an exercise training program before the pandemic.<h4>Methods</h4>Ninety-three aged individuals (aged between 60 and 85 years) were separated into 3 groups: practitioners of physical exercise vaccinated with CoronaVac (PE-Co, <i>n</i> = 46), or vaccinated with ChadOx-1 (PE-Ch, <i>n</i> = 23), and non-pr ...[more]