PMID- 20806115 OWN - NLM STAT- MEDLINE DCOM- 20110408 LR - 20201209 IS - 2567-689X (Electronic) IS - 0340-6245 (Linking) VI - 104 IP - 5 DP - 2010 Nov TI - Argatroban administration reduces leukocyte adhesion and improves capillary perfusion within the intestinal microcirculation in experimental sepsis. PG - 1022-8 LID - 10.1160/TH10-04-0241 [doi] AB - Co-activation of pro-coagulatory pathways in sepsis may result in disseminated intravascular coagulation and contributes to microvascular dysfunction. We investigated the effects of the direct thrombin inhibitor, argatroban (ARG), on the sepsis-induced impairment of the intestinal microcirculation (capillary perfusion, leukocyte adhesion) and the vascular contractility in rats. Forty male Lewis rats were randomly assigned to one of four groups: sham surgery (SHAM), experimental sepsis (colon ascendens stent peritonitis--CASP), CASP+ARG, and SHAM+ARG. At 16 hours after colon stent insertion (or sham surgery), 2 mg/kg argatroban or buffer were given intravenously, and 1 hour thereafter, intravital microscopy was performed. In addition, experiments to study the impact of ARG on vascular contractility were conducted in vitro . ARG administration in CASP rats significantly increased functional capillary density in mucosal (+128%) and muscular layers (longitudinal: +42%; circular: +64%) and decreased the number of firmly adhering leukocytes in the intestinal submucosa compared to untreated animals. In vitro findings indicated a vasodilating effect of ARG. ARG administration during experimental sepsis improved intestinal microcirculation by preserving functional capillary density, an indicator of microvascular perfusion, and by reducing leukocyte adherence to the endothelium in submucosal venules. FAU - Fuchs, Christian AU - Fuchs C AD - Department of Anesthesia and Intensive Care Medicine, Ernst-Moritz-Arndt-Universitat, Greifswald, Germany. FAU - Ladwig, Elena AU - Ladwig E FAU - Zhou, Juan AU - Zhou J FAU - Pavlovic, Dragan AU - Pavlovic D FAU - Behrend, Kristina AU - Behrend K FAU - Whynot, Sara AU - Whynot S FAU - Hung, Orlando AU - Hung O FAU - Murphy, Michael AU - Murphy M FAU - Cerny, Vladimir AU - Cerny V FAU - Lehmann, Christian AU - Lehmann C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100830 PL - Germany TA - Thromb Haemost JT - Thrombosis and haemostasis JID - 7608063 RN - 0 (Anticoagulants) RN - 0 (Pipecolic Acids) RN - 0 (Sulfonamides) RN - 94ZLA3W45F (Arginine) RN - IY90U61Z3S (argatroban) SB - IM MH - Animals MH - Anticoagulants/*pharmacology MH - Arginine/analogs & derivatives MH - Blood Pressure/drug effects MH - Capillaries/*drug effects/immunology/physiopathology MH - Cell Adhesion/*drug effects MH - Disease Models, Animal MH - Heart Rate/drug effects MH - Intestines/*blood supply MH - Leukocytes/*drug effects/immunology MH - Male MH - Microcirculation/*drug effects MH - Microscopy, Video MH - Myography MH - Pipecolic Acids/*pharmacology MH - Rats MH - Rats, Inbred Lew MH - Sepsis/*drug therapy/immunology/physiopathology MH - Splanchnic Circulation/*drug effects MH - Sulfonamides MH - Time Factors MH - Vasodilation/drug effects EDAT- 2010/09/02 06:00 MHDA- 2011/04/09 06:00 CRDT- 2010/09/01 06:00 PHST- 2010/04/20 00:00 [received] PHST- 2010/07/19 00:00 [accepted] PHST- 2010/09/01 06:00 [entrez] PHST- 2010/09/02 06:00 [pubmed] PHST- 2011/04/09 06:00 [medline] AID - 10-04-0241 [pii] AID - 10.1160/TH10-04-0241 [doi] PST - ppublish SO - Thromb Haemost. 2010 Nov;104(5):1022-8. doi: 10.1160/TH10-04-0241. Epub 2010 Aug 30.