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Bone Marrow Multipotent Mesenchymal Stromal Cells Transplantation Effects after Experimental Polytrauma in Rats

机译:大鼠多发性创伤后骨髓多能间质基质细胞的移植效应

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The aim of this study was to evaluate impact of transplantation of bone marrow mesenchymal stromal cells on recovery after polytrauma and bone fracture repair. 27 Wistar-Kyoto rats were divided into 3 groups (n=9): normal control (A), polytrauma (B), and polytrauma treated with BM MMSCs transplantation (C). The experimental polytrauma model was made on male rats by causing multiple fractures and hemorrhagic shock. At 36 hours and nine days after surgery 9 rats received syngeneic BM MMSCs (1×10~6 cells/kg) intravenously. In 30 days post-surgery period changes in animals' body temperature, weight and locomotor behavior as well as blood parameters were recorded. At day 30 rats were euthanized and macroscopic and histological observations of rats lower extremities was performed. The treated animals showed faster weight gain, as well as regaining their physical activity earlier. These outcomes were associated with locomotor activity test results, blood glucose and lactate ratios and less marked muscle atrophy. Rat treatment with BM MMSCs transplantation stimulated bone fracture healing - bone edge consolidation and enhanced callus formation, as well as the size and maturity of newly formed trabeculae. Red blood analysis results showed delayed recovery after hemorrhage in the rats receiving BM MMSCs: restoration of RBC counts, hematocrit and HGB level velocity was less than in the untreated animals. BM MMSCs transplantation improved rats rehabilitation scores after experimental polytrauma.
机译:这项研究的目的是评估骨髓间充质基质细胞移植对多创伤和骨折修复后恢复的影响。将27只Wistar-Kyoto大鼠分为3组(n = 9):正常对照组(A),多发伤(B)和BM MMSCs移植治疗的多发伤(C)。通过引起多发性骨折和失血性休克在雄性大鼠上建立实验性多创伤模型。在手术后36小时零9天,有9只大鼠静脉内接受了同源的BM MMSCs(1×10〜6细胞/ kg)。手术后30天内记录动物的体温,体重和运动行为以及血液参数的变化。在第30天对大鼠进行安乐死,并对大鼠下肢进行肉眼观察和组织学观察。处理过的动物体重增加更快,并且较早恢复体力活动。这些结果与运动活性测试结果,血糖和乳酸比率以及较少的明显肌肉萎缩有关。 BM MMSC移植对大鼠的治疗刺激了骨折的愈合-骨边缘固结和愈伤组织形成,以及新形成的小梁的大小和成熟度。红血球分析结果显示,接受BM MMSC的大鼠出血后恢复延迟:RBC计数,血细胞比容和HGB水平速度的恢复低于未治疗的动物。实验性多发伤后,BM MMSCs移植改善了大鼠的康复评分。

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