ABSTRACT
OBJECTIVE: To investigate the factors that influence FeCl3-induced mouse mesenteric arteriole thrombosis model. METHODS: Platelets were isolated from donor mice and labeled with Calcein-AM. Mice were transfused intravenously with Calcein-AM labeled platelets. The influence of mouse ages (3-6 weeks, 6-10 weeks and >10 weeks), transfused platelets counts (1×107, 1×108 and 2×108 platelets) and concentrations of FeCl3 (6%, 12%, 24% and 48%) on FeCl3-induced thrombosis model were compared. RESULTS: The occlusion time was 16 min for mice aged 3-6 weeks, which was shorter than that for 6 mice aged 6-10 weeks(25 min)(P<0.05) and that for mice aged >10 weeks(38 min)(P<0.01). The occlusion time resulting from transfusion of 1×108 and 2×108 of pletclets was 15-18 min, which was shorter than that of transfusion 1×107 platelets (30 mins). The occlusion time resulting from transfusion of 6% and 12% FeCl3 was from 15 to 20 min, however the transfusion of 24% and 48% FeCl3 all in all leads to vessel occlusion within 10 min. CONCLUSION: The factors influencing the success of FeCl3-induced mouse thrombosis model are more. Transfusion of 1×108 to 2×108 labeled platelets to 3-6 week-old mice, and 6% to 12% of FeCl3 should be used to induce thrombosis, and the experimental conditions should be optimized for this animal model, therefore, it is easier for us to set up a mouse mesenteric arteriole thrombosis model.
