AI Article Synopsis

  • Staphylococcal enterotoxin B (SEB) triggers lethal shock by overactivating the immune system, potentially leading to severe health issues.
  • Dexamethasone, an anti-inflammatory drug, and N-acetyl cysteine (NAC), an antioxidant, were tested together and found to effectively protect mice (75% survival) from SEB-induced shock and reduce associated symptoms like hypothermia and weight loss.
  • The combination therapy notably decreased inflammatory markers (such as interleukins and gamma interferon) in lung tissue, suggesting a beneficial impact on controlling the immune response to SEB.

Article Abstract

Staphylococcal enterotoxin B (SEB) causes lethal shock by potently stimulating the host immune response. Dexamethasone and N-acetyl cysteine (NAC) are anti-inflammatory and antioxidative drugs, respectively, which can independently modulate immune function. Dexamethasone was previously shown to be effective in preventing SEB-induced shock models only if administered early and in multiple doses for a long duration. In this study, dexamethasone and NAC were used in tandem and protected mice (75%) against SEB-induced lethal shock. Hypothermia and weight loss elicited by SEB were also diminished by this novel combination treatment. The levels of monocyte chemoattractant protein-1, interleukin-2, interleukin-6, and mouse gamma interferon in lung tissue after intranasal exposure to SEB were also significantly reduced in mice given a combination of dexamethasone and NAC versus controls.

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http://dx.doi.org/10.7205/MILMED-D-13-00129DOI Listing

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