Body weight of NPGPx knockout (KO) mice and wild-type littermates (WT) fed on standard chow diet (C) or high-fat diet (HFD) (n = 27–30 per group). The HFD was started at the age of 10 weeks. *p = 0.017 by repeated measures ANOVA.
Representative photograph inguinal fat pads (upper panel) and gonadal fat pads (lower panel) of 24-week-old NPGPx KO or NPGPx WT mice fed on HFD.
Fat mass of 24 week-old mice measured by micro-CT (n = 10 per group). *p = 0.009 by independent Student's t-test.
Weight of white fat pads (inguinal fat, gonadal fat and mesenteric fat), brown fat pads (BAT) and the liver (n = 10 per group). *p = 0.03, **p = 0.04, #p = 0.009 and ##p = 0.06 by independent Student's t-tests.
Representative haematoxylin and eosin (H&E) staining of the gonadal fat tissue of WT or KO mice fed on HFD.
Adipocyte size and (F) estimated adipocyte number (G) of the gonadal fat pads of 24 week-old mice fed on HFD (n = 15 per group). *p < 0.0001 by independent Student's t-test.
Relative expression of adipogenesis marker genes (pparg, ap2, cd36/fat and aqp7) measured by qRT-PCR in the gonadal fat pads of 24-week-old mice fed on HFD (n = 5 per group). *p = 0.01, **p = 0.02, #p = 0.01, ##p = 0.004 by paired Student's t-test.
Fasting plasma free fatty acid (I), fasting triglycerides (TG) (J), fasting insulin and glucose levels (K) in 24-week-old mice fed on HFD. *p = 0.02, #p = 0.003 and ##p = 0.03 by independent Student's t-tests. Open circles (○), triangles (△) or open bars (□) denote knockout mice. Filled circles (●), filled triangles (▴) or filled bars (▪) denote wild-type mice. All values are presented as means ± S.E.M.