Horta Aline Luciano, Leite Ana Luisa Junqueira, Paula Costa G, Figueiredo Vivian Paulino, Talvani André
Programa de Pós-Graduação em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil.
Programa de Pós-Graduação em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil; Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil; Programa de Pós-Graduação em Saúde e Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil; Programa de Pós-Graduação em Biomas Tropicais, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil.
Biomed Res Int. 2017;2017:9205062. doi: 10.1155/2017/9205062. Epub 2017 Mar 9.
causes a cardiac infection characterized by an inflammatory imbalance that could become the inciting factor of the illness. To this end, we evaluated the role of carvedilol, a beta-blocker with potential immunomodulatory properties, on the immune response in C57BL/6 mice infected with VL-10 strain of in the acute phase. Animals ( = 40) were grouped: (i) not infected, (ii) infected, (iii) infected + carvedilol, and (iv) not infected + carvedilol. We analyzed parameters related to parasitemia, plasma levels of TNF, IL-10, and CCL2, and cardiac histopathology after the administration of carvedilol for 30 days. We did not observe differences in the maximum peaks of parasitemia in the day of their detection among the groups. The plasma TNF was elevated at 60 days of infection in mice treated or not with carvedilol. However, we observed a decreased CCL2 level and increased IL-10 levels in those infected animals treated with carvedilol, which impacted the reduction of the inflammatory infiltration in cardiac tissue. For this experimental model, carvedilol therapy was not able to alter the levels of circulating parasites but modulates the pattern of CCL2 and IL-10 mediators when the VL10 strain of was used in C57BL6 mice.
引发一种以炎症失衡为特征的心脏感染,这种炎症失衡可能成为该疾病的诱发因素。为此,我们评估了具有潜在免疫调节特性的β受体阻滞剂卡维地洛在急性期感染VL - 10菌株的C57BL / 6小鼠免疫反应中的作用。将动物(n = 40)分组:(i)未感染组,(ii)感染组,(iii)感染 + 卡维地洛组,以及(iv)未感染 + 卡维地洛组。在给予卡维地洛30天后,我们分析了与寄生虫血症、血浆中TNF、IL - 10和CCL2水平以及心脏组织病理学相关的参数。我们未观察到各组在检测日寄生虫血症的最大峰值存在差异。在感染60天时,无论是否用卡维地洛治疗的小鼠血浆TNF均升高。然而,我们观察到在接受卡维地洛治疗的感染动物中CCL2水平降低且IL - 10水平升高,这影响了心脏组织中炎症浸润的减少。对于该实验模型,当在C57BL6小鼠中使用 VL10菌株时,卡维地洛治疗无法改变循环寄生虫的水平,但可调节CCL2和IL - 10介质的模式。 (注:原文中“infected with VL - 10 strain of ”这里的“of ”后面缺失了病原体名称)