title: Putative primo-vascular system in mesentery of rats.
abstract: Primo-vessels have been observed in the rat abdominal cavity as floating thread like structures on and not adhering to fascia-wrapped internal organs. To date their presence, locations, and lengths have been irregular and unpredictable, and their identification not regularly repeatable, thus they have remained a nagging enigma in primo-vascular system research for several years. In this work, locations were found where primo-vessels were regularly present and observed repeatedly. These vessels were not floating or freely movable but lay in a regular position in the mesentery in the abdominal cavity of the rat, being observed between the cecum and small intestine and between the colon and mesentery root. The difference between a lymph vessel and a primo-vessel is described in anatomical and histological aspects. In addition, trypan blue was found to enter primo-vessels through the surrounding membranes and filled spaces between fibers comprising the primo-vessels. It is conjectured that the previously observed floating primo-vessels had anomalously and irregularly emerged, for some unknown physiological reasons, from primo-vessels normally located in the fascia-like mesentery.
authors.affiliation: Biomedical Physics Laboratory, Department of Physics and Astronomy, Seoul National University, Seoul, Korea.
authors.forename: Ping
authors.initials: P
authors.lastname: An
authors.forename: Jingxing
authors.initials: J
authors.lastname: Dai
authors.forename: Zhendong
authors.initials: Z
authors.lastname: Su
authors.forename: Jung-Sun
authors.initials: JS
authors.lastname: Yoo
authors.forename: Rongmei
authors.initials: R
authors.lastname: Qu
authors.forename: Sung-Woo
authors.initials: SW
authors.lastname: Lee
authors.forename: Ki-Hoon
authors.initials: KH
authors.lastname: Eom
authors.forename: Kyang-Hee
authors.initials: KH
authors.lastname: Bae
authors.forename: Hesheng
authors.initials: H
authors.lastname: Luo
authors.forename: Kwang-Sup
authors.initials: KS
authors.lastname: Soh
mesh_terms: D000818:Animals; D016740:Meridians; D008643:Mesentery / Q000033:anatomy & histology / Q000098:blood supply / Q000737:chemistry / Q000502:physiology; D051381:Rats; D017207:Rats, Sprague-Dawley; D013194:Staining and Labeling; D014343:Trypan Blue / Q000032:analysis
chemical_list: D014343:Trypan Blue