Pup mortality during hypoxia and weight chart of the surviving pups. (A) Mortality (%) according to hypoxia duration in lipopolysaccaride (LPS) ± hypoxia-ischemia (HI)-exposed pups (20 to 150 pups per condition). χ
2 test: ***
P ≤ 0.001. (B) Pup-weight follow up from post-natal day (P)12 to P20 (10 to 30 pups per condition and time point). Mean ± standard error of the mean; analysis of variance with Newman-Keuls post-test; *
P ≤0.05, **
P ≤ 0.01, ****
P ≤ 0.0001. h hour, g gram, NS Not significant.