Abstract:
:Inhibition of cellular respiration, oxidation of glutathione and induction of apoptosis have been reported in epithelial cells infected in vitro with influenza A virus (IAV). Here, the same biomarkers were investigated in vivo by assessing the lungs of BALB/c mice infected with IAV. Cellular respiration declined on day 3 and recovered on day 7 post-infection. For days 3-5, the rate (mean±SD) of respiration (µMO2min(-1)mg(-1)) in uninfected lungs was 0.103±0.021 (n=4) and in infected lungs was 0.076±0.025 (n=4, p=0.026). Relative cellular ATP (infected/uninfected) was 4.7 on day 2 and 1.07 on day 7. Intracellular caspase activity peaked on day 7. Cellular glutathione decreased by ≥10% on days 3-7. Lung pathology was prominent on day 3 and caspase-3 labeling was prominent on day 5. IAV infection was associated with suppression of cellular respiration, diminished glutathione, and induction of apoptosis. These functional biomarkers were associated with structural changes noted in infected mice.
journal_name
Virologyjournal_title
Virologyauthors
Alsuwaidi AR,Almarzooqi S,Albawardi A,Benedict S,Kochiyil J,Mustafa F,Hartwig SM,Varga SM,Souid AKdoi
10.1016/j.virol.2013.07.034subject
Has Abstractpub_date
2013-11-01 00:00:00pages
180-8issue
1-2eissn
0042-6822issn
1096-0341pii
S0042-6822(13)00454-6journal_volume
446pub_type
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