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Fig. 5 | Acta Neuropathologica Communications

Fig. 5

From: Type 2 diabetes impairs odour detection, olfactory memory and olfactory neuroplasticity; effects partly reversed by the DPP-4 inhibitor Linagliptin

Fig. 5

Chronic DPP-4 inhibition does not affect odour detection and olfactory memory in diabetic rats. a Mean sniffing time of wooden blocks covered with a scent of the tested rat (block A-C) and unknown rat (block E) in the block test. b Mean sniffing time of the scented cartridge covered with vanilla and lemon odour in the habituation dishabituation test. c Mean time to find pellet in the buried pellet test. d Mean sniffing time of the scented cartridge (vanilla/lemon) during 7 trials of the habituation dishabituation test. e Mean time to find pellet in the buried pellet test performed during 5 consecutive days. For comparisons between linagliptin-treated and untreated GK rats in this Study 2, the same statistical tests were performed as in Study 1 (see Fig. 2). The data are expressed as means ±S.E.M., φp < 0.05

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