Sepulveda-Arias Juan C, Veloza Luz A, Mantilla-Muriel Luz E
Departamento de Ciencias Basicas, Facultad de Ciencias de la Salud, Universidad Tecnologica de Pereira, Pereira, Risaralda, Colombia.
Recent Pat Antiinfect Drug Discov. 2014;9(3):186-94. doi: 10.2174/1574891x10666150410120321.
Toxoplasma gondii is an intracellular parasite widely distributed in nature. Infection is asymptomatic in immunocompetent individuals; however, various clinical manifestations may occur in immunocompromised individuals. Although there are medications for the treatment of toxoplasmosis, such as pyrimethamine and sulfonamide, they cannot always be used due to adverse reactions or to therapeutic failures related to intolerance or malabsorption of drugs and to parasite drug resistance. In recent years, the search for new antimicrobial agents derived from plants has intensified because a quarter of synthetic drugs that are currently prescribed have been isolated from a plant source, demonstrating that natural products are important in the development of new drugs. A systematic literature search was conducted to evaluate the use of natural products as an alternative for the treatment of T. gondii infection. The search was conducted for the 2000-2014 period in Science Direct, Scopus, PubMed, EMBASE, and SciELO databases, using the following MeSH terms: anti-Toxoplasma activity, toxoplasma AND natural products, toxoplasma AND plant extracts. Ethnobotanical and experimental evidence (in vitro/in vivo) was found supporting the use of natural products as a source for the discovery of new therapies against T. gondii.
刚地弓形虫是一种广泛分布于自然界的细胞内寄生虫。在免疫功能正常的个体中,感染通常无症状;然而,在免疫功能低下的个体中可能会出现各种临床表现。尽管有治疗弓形虫病的药物,如乙胺嘧啶和磺胺类药物,但由于不良反应或与药物不耐受、吸收不良以及寄生虫耐药性相关的治疗失败,它们并非总能使用。近年来,从植物中寻找新的抗菌剂的研究有所加强,因为目前处方的合成药物中有四分之一是从植物来源分离出来的,这表明天然产物在新药开发中很重要。进行了一项系统的文献检索,以评估天然产物作为治疗刚地弓形虫感染替代品的用途。检索在2000年至2014年期间于科学Direct、Scopus、PubMed、EMBASE和SciELO数据库中进行,使用了以下医学主题词:抗弓形虫活性、弓形虫与天然产物、弓形虫与植物提取物。发现了民族植物学和实验证据(体外/体内)支持将天然产物作为发现抗刚地弓形虫新疗法的来源。