In vitro effects of selenium deficiency on West Nile virus replication and cytopathogenicity
2008

Effects of Selenium Deficiency on West Nile Virus

publication Evidence: moderate

Author Information

Author(s): Verma Saguna, Molina Yanira, Lo Yeung Y, Cropp Bruce, Nakano Cheynie, Yanagihara Richard, Nerurkar Vivek R

Primary Institution: John A. Burns School of Medicine, University of Hawaii at Manoa

Hypothesis

Selenium deficiency may play an important role in West Nile virus pathogenesis.

Conclusion

Selenium deficiency enhances West Nile virus-induced cell death without affecting viral replication kinetics.

Supporting Evidence

  • Selenium deficiency led to increased oxidative stress in Vero cells.
  • WNV infection caused more cell death in selenium-deficient Vero cells.
  • Viral replication rates were similar in selenium-deficient and adequate cells.

Takeaway

This study shows that not having enough selenium can make cells more likely to die when infected with West Nile virus, even though the virus itself doesn't multiply faster.

Methodology

The study used Vero and SK-N-SH cells grown in selenium-deficient media to analyze the effects on viral replication and cell death.

Limitations

The study was conducted in vitro, which may not fully represent in vivo conditions.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1743-422X-5-66

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