IL-6 and TNF-α in lymph nodes of aging HIV-1Tg and F344 rats, with and without LPS treatment.

<p>Pro-inflammatory cytokines, (A) IL-6 and (B) TNF-α, were examined in the lymph nodes of HIV-1Tg (red bars) and age-matched F344 control rats (blue bars), with and without LPS treatment. Solid bars indicate control samples and bars with striped lines indicate samples treated with LPS. *p<0.05, **p<0.01, ***p<0.001, ****p<0.0001.