Fig. 6From: DPP-4 inhibition with linagliptin ameliorates the progression of premature aging in klotho−/− miceEffects of linagliptin treatment on latency of passive avoidance test (a), resting cerebral blood flow (b), and hippocampal CA1 neuronal cell number (c) of wild-type mice. Abbreviations used are the same as in Fig. 2. Values are mean ± SEM. In a, c n = 7 in each group. In b n = 10 in each group. In a, c statistical analysis was performed by Mann–Whitney U test. In b statistical analysis was performed by non-paired t testBack to article page