title: 1,25-Dihydroxycholecalciferol and peritoneal macrophage chemotaxis in patients on continuous ambulatory peritoneal dialysis.
abstract: Single graded doses of 1,25-dihydroxycholecalciferol of 2 and 4 micrograms were added intraperitoneally into the overnight 1.5% glucose dialysate of 6 patients on continuous ambulatory peritoneal dialysis. The effect on peritoneal macrophage chemotaxis and random migration was studied and compared with the baseline when no 1,25-(OH)2D3 was added. No consistent effect on peritoneal macrophage chemotaxis was observed. Random migration was significantly depressed at 4 micrograms when compared with baseline (5.4 +/- 1.9 vs. 12.2 +/- 3.7 cells/high-power field, p less than 0.05). The potential clinical role of 1,25-(OH)2D3 as an immune modulator requires further study.
authors.affiliation: Department of Medicine, University of Hong Kong, Queen Mary Hospital.
authors.forename: P C
authors.initials: PC
authors.lastname: Chan
authors.forename: M S
authors.initials: MS
authors.lastname: Ip
authors.forename: K K
authors.initials: KK
authors.lastname: Pun
mesh_terms: D000328:Adult; D002117:Calcitriol / Q000008:administration & dosage / Q000097:blood / Q000494:pharmacology*; D002465:Cell Movement / Q000187:drug effects; D002633:Chemotaxis / Q000187:drug effects; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D007274:Injections, Intraperitoneal; D007676:Kidney Failure, Chronic / Q000188:drug therapy / Q000503:physiopathology / Q000628:therapy; D008264:Macrophages / Q000187:drug effects* / Q000502:physiology; D008297:Male; D008875:Middle Aged; D010531:Peritoneal Dialysis, Continuous Ambulatory
chemical_list: D002117:Calcitriol