title: [Colonic perforation due to invasive amebic colitis during anti-TNF therapy for spondyloarthritis].
abstract: TNF blockade has been successful in the treatment of some rheumatic diseases such as spondyloarthritis. Many infectious complications have been reported with anti-TNF therapy, mainly bacterial, mycobacterial, viral and fungal infections. Entamoeba histolytica is an extracellular protozoan parasite that mainly causes colitis and hepatic abscess; bowel perforation is an uncommon complication with high mortality. TNF is considered the principal mediator of cell immunity against amebiasis. Initially, it is chemotactic to E. histolytica, enhancing its adherence to enterocyte via galactose inhibitable lectin, and then activating macrophages to kill ameba though the release of NO, so that TNF blocking could be harmful, increasing amebic virulence. We describe the case of a 46-year-old woman with spondyloarthritis who presented a colonic perforation due to invasive amebic colitis during anti-TNF use.
authors.affiliation: Universidade do Quindío, Quindío, Colômbia. Electronic address: jprestrep@lycos.com.
authors.forename: Juan Pablo
authors.initials: JP
authors.lastname: Restrepo
authors.affiliation: Universidad Libre, Quindío, Colômbia.
authors.forename: María del Pilar
authors.initials: Mdel P
authors.lastname: Molina
mesh_terms: D000068879:Adalimumab / Q000009:adverse effects*; D000893:Anti-Inflammatory Agents / Q000009:adverse effects*; D003092:Colitis / Q000150:complications* / Q000469:parasitology*; D004404:Dysentery, Amebic / Q000139:chemically induced* / Q000150:complications; D004748:Entamoeba histolytica; D004749:Entamoebiasis / Q000139:chemically induced* / Q000150:complications; D005260:Female; D006801:Humans; D007416:Intestinal Perforation / Q000469:parasitology*; D008875:Middle Aged; D025241:Spondylarthritis / Q000188:drug therapy; D014409:Tumor Necrosis Factor-alpha / Q000037:antagonists & inhibitors
chemical_list: D000893:Anti-Inflammatory Agents; D014409:Tumor Necrosis Factor-alpha; D000068879:Adalimumab
keywords: Amebic Colitis; Anti‐TNF Inhibitors; Colonic Perforation; Inibidores Anti‐TNF, Perfuração do colo, Colite amebiana