Long-Lived αMUPA Mice Show Reduced Sexual Dimorphism in Lifespan, and in Energy and Circadian Homeostasis-Related Parameters

Female αMUPA (alpha murine urokinase-like plasminogen activator) transgenic mice show increased lifespan, reduced body weight and food intake, and high-amplitude circadian rhythms with an endogenous period length (tau) of 24h, versus their wild types (WT) showing a 23.7-h tau. Our goal was to characterize αMUPA and WT male mice, and their in-strain sexual dimorphism, and to further understand the mechanisms underlying αMUPA's longevity. Male αMUPA mice showed increased lifespan, reduced body weight and food intake, and aligned endogenous rhythm with a tau of 24.0h versus a tau