Table 3.

Correlations between DPP4 activities vs metabolic parameters and MoCA score.

	DPP4 activitya		DPP4 activityb
	r	P	r	P
Age	0.074	0.009	–	–
BMI	0.130	<0.001	–	–
IL-6	0.305	<0.001	0.306	<0.001
CRP	0.243	<0.001	0.226	<0.001
Nitrotyrosine	0.294	<0.001	0.289	<0.001
8-iso-PGF2a	0.333	<0.001	0.327	<0.001
Fasting active GLP-1	-0.146	<0.001	-0.142	<0.001
MoCA score	-0.299	<0.001	-0.283	<0.001

^aP-value determined by Pearson’s correlation analysis with respect to the DPP4 activity.

^bP-value determined by partial correlation analysis with respect to the DPP4 activity adjusted for age, BMI, gender, and education level.