AMPD1 and sarcopenia: Therefore, because the improvement in kidney function could potentially modify the risk for sarcopenia, we performed a subanalysis in which we grouped wild type and AMPD1 KO mice with similar creatinine (0.58 ± 0.12 mg/dL in wild type n = 7 mice versus 0.49 ± 0.07 in AMPD1 KO mice n = 4, P = not significant, Figure 4A) and BUN values (65.33 ± 11.38 mg/dL in wild type n = 7 mice versus 52.50 ± 7.68 in AMPD1 KO mice n = 4, P = not significant).