Table 3.

Plasma MNs and GLP-1 levels of study patients before and after surgery (n = 13).

	Before surgery	After surgery	p
Plasma MN (nmol/l)	0.30 (0.15–2.84)	0.12 (0.08–0.21)	0.007∗
Plasma NMN (nmol/l)	8.42 (4.51–20.56)	0.48 (0.43–0.56)	0.001∗
Fasting total GLP-1 (pmol/l)	25.81 ± 15.83	39.01 ± 19.56	0.017∗

The significance of differences between preoperative and postoperative values was analyzed using paired Wilcoxon or paired t-tests. Data are shown as mean ± SD or the median (internal quartile range (IQR)). GLP-1: glucagon-likepeptide-1; MN: metanephrine; NMN: normetanephrine.