Figure 3.
TNFα production in response to LPS challenge A. TNFα levels collected from plasma immediately prior to (pre-LPS) or 2 h following (post-LPS) intraperitoneal injection with LPS (500 μg/kg). TNFα levels were undetectable in all samples prior to LPS injection. LPS robustly induced TNFα levels in wild type (p ≤ 0.01; n = 4) and heterozygous (p < 0.05; n = 4) rats but not in the homozygous rats (n = 6). LPS-induced TNFα levels in homozygous rats were reduced compared to heterozygous (p < 0.05) and wild type (p ≤ 0.01) rats. *p < 0.05; **p ≤ 0.01.