title: Exchange of 3-methylhistidine in the splanchnic region in human infection.
abstract: This investigation was undertaken to determine the splanchnic exchange of 3-methylhistidine (3MH) in infection. Hepatic vein, femoral vein, and radial artery catheterizations were performed in 12 febrile patients with infections of varying severity. Differences in arteriovenous 3MH, analyzed by high-performance liquid chromatography, were multiplied by the plasma flows, determined by a dye dilution technique. The mean splanchnic efflux was 0.062 +/- 0.180 mumol/min (mean +/- SD) with uptake occurring in five patients. The splanchnic uptake was significantly (p less than 0.001) correlated with the urinary 3MH excretion and the peripheral release from the leg. It is concluded that in human infection, splanchnic 3MH release is low and in patients with high rates of myofibrillar catabolism there may even be an uptake. The urinary 3MH excretion is still a marker of myofibrillar protein breakdown because it correlates well with the release from the leg, regardless of whether the patient has a splanchnic uptake or a release.
authors.affiliation: Department of Infectious Diseases, University Hospital, Uppsala, Sweden.
authors.forename: J
authors.initials: J
authors.lastname: Sjölin
authors.forename: H
authors.initials: H
authors.lastname: Stjernström
authors.forename: G
authors.initials: G
authors.lastname: Arturson
authors.forename: E
authors.initials: E
authors.lastname: Andersson
authors.forename: G
authors.initials: G
authors.lastname: Friman
authors.forename: J
authors.initials: J
authors.lastname: Larsson
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005268:Femoral Vein; D006639:Histidine / Q000031:analogs & derivatives*; D006801:Humans; D007239:Infections / Q000378:metabolism*; D008762:Methylhistidines / Q000097:blood* / Q000652:urine; D013152:Splanchnic Circulation
chemical_list: D008762:Methylhistidines; C028120:1-methylhistidine; D006639:Histidine; C028118:3-methylhistidine