Vinaud Marina Clare, Ferreira Cirlane Silva, Lino Junior Ruy de Souza, Bezerra José Clecildo Barreto
Tropical Pathology and Public Health, Institute from Federal, University of Goias, Goiania, Goias, Brazil.
Exp Parasitol. 2009 Jul;122(3):208-11. doi: 10.1016/j.exppara.2009.03.015. Epub 2009 Apr 5.
Cysticerci metabolic studies demonstrate alternative pathways responsible for its survival, such as energy sources, fatty acids oxidation and excretion of beta-hydroxybutyrate, which indicates the capability of energy production from proteins. The aim of this study was to detect alternative metabolic pathways for energy production and its end products in Taenia crassiceps cysticerci in vitro exposed to praziquantel and albendazole, in sub-lethal doses. Spectrophotometer and chromatographic analysis were performed to detect: propionate, acetate, beta-hydroxybutyrate, total proteins, urea and creatinine, SE by cysticerci in vitro exposed to praziquantel and albendazole. The drugs influenced the metabolism by inducing the creatinine phosphate phosphorylation as an alternative energy source, inhibiting the use of proteins and amino acids in the acid nucleic synthesis; and preventing the budding and replication of the cysticerci. This study also highlights the description of urea excretion, which is an important metabolic pathway to excrete toxic products such as ammonia, and the fatty acid oxidation as an alternative energy source in cysticerci exposed to anthelmintic drugs.
囊尾蚴的代谢研究表明,其生存存在替代途径,如能量来源、脂肪酸氧化和β-羟基丁酸的排泄,这表明蛋白质具有产生能量的能力。本研究的目的是检测体外暴露于亚致死剂量吡喹酮和阿苯达唑的肥胖带绦虫囊尾蚴中能量产生的替代代谢途径及其终产物。通过分光光度计和色谱分析检测:体外暴露于吡喹酮和阿苯达唑的囊尾蚴产生的丙酸盐、乙酸盐、β-羟基丁酸、总蛋白、尿素和肌酐。这些药物通过诱导磷酸肌酸磷酸化作为替代能量来源来影响代谢,抑制酸性核酸合成中蛋白质和氨基酸的使用;并阻止囊尾蚴的出芽和复制。本研究还强调了尿素排泄的描述,尿素排泄是排泄氨等有毒产物的重要代谢途径,以及脂肪酸氧化作为暴露于驱虫药物的囊尾蚴的替代能量来源。