Primary obesity parameters in C57BL/6N and B6.V-Lepob/J mice between 8–28 weeks. A, body weight, B, waist circumference, and C, body mass index. A significant change has been observed in these parameters between the groups in time-dependent manner. Values represent Mean ± SEM, *p<0.05, **p<0.001, compared to C57BL/6 mice. Details are described in ‘materials and methods’ section.