Testosterone treatment of aged male mice improves some but not all aspects of age-associated increases in influenza severity.

Abstract:

:The severity of influenza increases with age, with worse disease in aged males than females. Testosterone concentrations decline with age in males, which may impact influenza pathogenesis. Aged male mice were treated with testosterone or placebo and outcomes during influenza A virus (IAV) infection were compared with adult male mice. Aged males experienced greater morbidity and mortality than adult males, which was partially improved by testosterone treatment of aged males. Aged males cleared IAV from lungs slower than adult males, regardless of testosterone treatment. As compared with adult males, aged males experienced pulmonary, but not systemic, cytokine dysregulation, and delayed influx and contraction of IAV-specific CD8+ T cells in the lungs. Testosterone treatment in aged males partially restored pulmonary cytokine responses to levels consistent with adult males but did not alter the age-associated changes in IAV-specific CD8+ T cells. Testosterone only modestly improves outcomes of influenza in aged males.

journal_name

Cell Immunol

journal_title

Cellular immunology

authors

Vom Steeg LG,Attreed SE,Zirkin B,Klein SL

doi

10.1016/j.cellimm.2019.103988

subject

Has Abstract

pub_date

2019-11-01 00:00:00

pages

103988

eissn

0008-8749

issn

1090-2163

pii

S0008-8749(19)30231-X

journal_volume

345

pub_type

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