Male mice have increased thrombotic potential: sex differences in a mouse model of venous thrombosis.
Male mice have increased thrombotic potential: sex differences in a mouse model of venous thrombosis.
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DOI：
10.1016/j.thromres.2011.01.004
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发表时间：
2011-05
影响因子：
7.5
通讯作者：
Myers DD Jr
中科院分区：
文献类型：
--
作者：
Alvarado CM;Diaz JA;Hawley AE;Wrobleski SK;Sigler RE;Myers DD Jr
Our objectives were to characterized sex differences during venous thrombosis using the electrolytic inferior vena cava model of the disease. Male and female C57BL/6 mice (6–8 weeks) underwent inferior vena cava thrombosis. Time points included 6 hours, day 2, day 6, and day 14 post surgery along with surgically naïve true controls and surgical shams. Analyses included thrombus weight, vein wall morphometrics, and vein wall protein and gene expression for P-selectin, interleukin-1β, and tumor necrosis factor-α; hematology, soluble P-selectin, and plasma microparticle tissue factor activity assays. Male venous thrombi were significantly larger than females at days 2 (13.1±1.0 vs. 6.8± 0.5 ×10−3 grams, p<0.01), 6 (10.4±0.8 vs. 5.4± 0.5 ×10−3 grams, p<0.01) and 14 (6.3±0.5 vs. 4.1± 0.3 ×10−3 grams, p<0.01). Both male and female mice exhibited significantly increased vein wall P-selectin at 6 hours, vs. true controls (p<0.05). Males had increased vein wall interleukin-1β, versus females, at 6 hours (180.926±24.596 vs. 60.417±10.478 pg/mL, p<0.05) and day 6 (76.966±13.081 vs. 33.834±4.198 pg/mL, p<0.01). Males showed decreased tumor necrosis factor-α expression (−66 %) at 6 hours. Females had increased tumor necrosis factor-α expression at 6 hours (+541%) and day 6 (+539%). Both sexes demonstrated decreased peripheral platelets at 6 hours (p<0.05), coinciding with thrombogenesis. Plasma P-selectin increased in both sexes, versus controls, through day 6 (p<0.05). Males had significantly larger venous thrombi than females. Sex differences in vascular anatomy and response to inflammation may influence thrombus formation in our mouse thrombosis model.
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