The word "mesenteric" refers to something related to the mesentery. The mesentery is a sheet of tissue in the abdomen that connects the intestines to the back wall of the body. Full definition
Gender differences in vascular reactivity to endothelin - 1 (1 — 31) in mesenteric arteries from diabetic mice (academic.oup.com)
Endothelin -1-mediated vasoconstriction in mesenteric artery rings was higher in female diabetic mice, whereas no sex differences were seen in newly manifested animals (286). (academic.oup.com)
Put them all together and you have the field of mesenteric science... the basis for a whole new area of science,» he said. (sciencedaily.com)