Morphological observations and relative expression levels of <i>Ucp1</i> and <i>Pgc1a</i> in the rickett's big-footed bats.

<p>(<b>a</b>) HE staining. (<b>b</b>) Measurement of adipocytes diameters of sWAT and aWAT from 10°C and 30°C temperature groups. (<b>c–d</b>) Relative expression levels of <i>Ucp1</i> (<b>c</b>) and <i>Pgc1a</i> (<b>d</b>) in sWAT, aWAT and iBAT after cold acclimation, comparing to the 30°C control of the corresponding tissue. Fold change expressed as means ± SD. Statistical significance: *, p<0.05; **, p<0.01.