BDNF and infection: On the other hand, mRNA levels of Bdnf, Ngf, and Fgf were significantly lower in the hippocampi of rats with a UTI at 6 h post infection (0.36 ± 0.17, p = 0.034; 0.45 ± 0.17, p = 0.049; and 0.6 ± 0.07, p = 0.007, respectively) as compared to expression level in sham hippocampi (1.03 ± 0.13, 1.04 ± 0.15, and 1.22 ± 0.11, respectively).