Brown adipose tissue abnormality in OGR1 KO mice in the mixed background.

<p>(A) Brown adipose tissues in the KO mice were larger than those in FL mice. (a) Weights of BAT (9 mice from FL and 9 mice from KO). (b) Representative appearance of BAT from FL and KO mice. (B) H & E staining of BAT and WAT in FL and KO mice. * represents a <i>P</i> value of <0.05, and *** represents a <i>P</i> value of <0.001. Scale bar = 100 µm.