Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 2 de 2
Filtrar
Más filtros

Banco de datos
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Cardiology ; 2024 Aug 06.
Artículo en Inglés | MEDLINE | ID: mdl-39106839

RESUMEN

INTRODUCTION: People with HIV (PWH) have increased risk of atherosclerotic cardiovascular disease (ASCVD) compared to non-PWH, but the reasons for this increased risk remain elusive. We investigated the change in ASCVD risk scores over 4-years to identify clinical factors associated with change in risk scores or high risk scores. METHODS: We conducted a preliminary study using retrospective analysis of PWH, between 40-75 years old, seen at the Evelyn Jordan Center with at least two routine HIV visits. We collected clinical and demographic data and calculated the ASCVD risk scores using the Pooled Cohort Equation. Exploratory analyses examined change in risk score categories over time. Final adjusted analysis examined factors associated with change in continuous risk scores over time. RESULTS: Our sample included 187 PWH, 166 were Black/African American and 79 were female. We found no significant change in ASCVD risk score over time. The risk score was significantly higher in PWH with hepatitis C (7.34%; 95% CI 2.59, 12.09; p=0.003) and trended higher in those with dual hepatitis B/C and hepatitis B compared to those without hepatitis (p=0.07). CONCLUSION: We found that ASCVD risk did not change over a 4-year period among predominantly Black young PWH, but infection with hepatitis C and dual hepatitis B/C were associated with higher ASCVD risk scores. Our findings illustrate the need for further longitudinal studies evaluating change in CVD risk and investigating viral hepatitis as an added potential contributor to increased CVD risk in high-risk, vulnerable populations.

2.
Geroscience ; 46(5): 4225-4242, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-38512581

RESUMEN

Human cytomegalovirus (hCMV) is a ubiquitous latent persistent herpesvirus infecting 60-90% of the population worldwide. hCMV carriage in immunocompetent people is asymptomatic; thus, hCMV can be considered a component of normative aging. However, hCMV powerfully modulates many features of the immune, and likely other, systems and organs. Questions remain as to how hCMV carriage affects the human host. We used anti-CMV antibody titers as a stratifying criterion to examine the impact of "intensity" of hCMV infection as a potential biomarker of aging, inflammation, and immune homeostasis in a cohort of 247 participants stratified into younger (21-40 years) and older (> 65 years of age) groups. We showed that anti-CMV antibody titers increased with age and directly correlated to increased levels of soluble tumor necrosis factor (sTNFR) I in younger but not older participants. CD8 + cell numbers were reduced in the older group due to the loss in CD8 + T naïve (Tn) cells. In CMV carriers and, in particular, in anti-CMV Ab-high participants, this loss was mitigated or reversed by an increase in the numbers of CD8 + T effector memory (Tem) and T effector memory reexpressing CD45RA (Temra) cells. Analysis of CD38, HLA-DR, and CD57 expression revealed subset (CD4 or CD8)-specific changes that correlated with anti-CMV Ab levels. In addition, anti-CMV Ab levels predicted anti-CMV CD8 T cell responsiveness to different CMV open reading frames (ORFs) selectively in older participants, which correlated to the transcriptional order of expression of specific CMV ORFs. Implications of these results for the potential predictive value of anti-CMV Ab titers during aging are discussed.


Asunto(s)
Envejecimiento , Anticuerpos Antivirales , Infecciones por Citomegalovirus , Citomegalovirus , Humanos , Infecciones por Citomegalovirus/inmunología , Masculino , Citomegalovirus/inmunología , Anticuerpos Antivirales/sangre , Anticuerpos Antivirales/inmunología , Anciano , Femenino , Adulto , Adulto Joven , Envejecimiento/inmunología , Linfocitos T CD8-positivos/inmunología , Persona de Mediana Edad , Biomarcadores/sangre
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA