Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil.
Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil.
Int J Exp Pathol. 2018 Oct;99(5):226-235. doi: 10.1111/iep.12290. Epub 2018 Nov 20.
Ophidic accidents are among the problems of public health in Brazil. The components from bothropic venom are responsible for many systemic clinical complications resulting from envenomation. The present work aimed to analyse the systemic changes induced in mice after intraperitoneal administration of BmooTX-I, a myotoxic acidic phospholipase A isolated from Bothrops moojeni venom. Urinalysis was performed and the following plasma biochemical markers were documented: urea, creatinine and uric acid (renal function); glucose and amylase (pancreatic function); alanine aminotransferase, alkaline phosphatase and gamma-GT (intra- and extrahepatic function); creatine kinase and enzymatic lactate (muscle function). Our results showed that after the intraperitoneal injection of BmooTX-I the urine of these animals showed glycosuria, proteinuria, haematuria, bacteriuria, bilirubinuria, polyuria and nitrite. The plasma biochemical analysis showed alterations in levels of urea, creatinine and uric acid. Amylase concentration was not altered significantly, but the plasma glucose increased significantly compared to controls. The plasma levels of alanine aminotransferase and alkaline phosphatase decreased and increased, respectively, in these same animals. On the other hand, the plasma γGT concentration did not undergo significant modification compared to the control group. The plasma concentration of CK increased, while the enzymatic lactate concentration decreased after the injection of the BmooTX-I. Therefore, in mice BmooTX-I is capable of causing systemic alterations which manifest as renal, muscular, hepatic and pancreatic impairment.
蛇伤是巴西公共卫生的问题之一。矛头蝮蛇毒的成分是导致蛇伤后许多系统性临床并发症的罪魁祸首。本研究旨在分析 BmooTX-I(一种从矛头蝮蛇毒液中分离出的酸性磷脂酶 A2)腹腔注射后对小鼠的全身变化。进行了尿液分析,并记录了以下血浆生化标志物:尿素、肌酐和尿酸(肾功能);葡萄糖和淀粉酶(胰腺功能);丙氨酸氨基转移酶、碱性磷酸酶和γ-GT(肝内外功能);肌酸激酶和酶性乳酸(肌肉功能)。我们的结果表明,BmooTX-I 腹腔注射后,这些动物的尿液出现了糖尿、蛋白尿、血尿、菌尿、胆红素尿、多尿和亚硝酸盐。血浆生化分析显示尿素、肌酐和尿酸水平发生了变化。淀粉酶浓度没有明显改变,但与对照组相比,血浆葡萄糖显著增加。这些动物的丙氨酸氨基转移酶和碱性磷酸酶的血浆水平分别降低和升高。另一方面,与对照组相比,γ-GT 血浆浓度没有明显变化。注射 BmooTX-I 后,CK 血浆浓度升高,而酶性乳酸浓度降低。因此,在小鼠中,BmooTX-I 能够引起全身变化,表现为肾脏、肌肉、肝脏和胰腺损伤。