Szargiki Regiane, Castro Edilene Alcântara de, Luz Ennio, Kowalthuk Wolodymir, Machado Angela Maria, Thomaz-Soccol Vanete
Centro de Produção e Pesquisa de Imunobiológicos, SESA, Paraná, Brazil.
Braz J Infect Dis. 2009 Feb;13(1):47-52. doi: 10.1590/s1413-86702009000100011.
We evaluated the effectiveness of serological and parasitological methods for cutaneous leishmaniasis (CL) diagnosis in patients from the central region of Paraná state, southern Brazil. Five groups were compared: clinical diagnosis, parasitological diagnosis, communicants, inhabitants of a non-endemic area and carriers of other etiologies. Two antigens were prepared from promastigotes of Leishmania (Viannia) braziliensis and Leishmania (Leishmania) amazonensis for indirect immunofluorescence assay, ELISA and immunoblotting. The parasitological approaches detected 79.3% of the patients with a clinical diagnosis; the parasites were identified by PCR as L. (V.) braziliensis. Serological methods showed 95% sensitivity for homologous antigens. Immunoblotting revealed specific proteins for diagnosis of CL and detected 96.6% of the patients when L. (V.) braziliensis was used as an antigen, and 83.3% with L. (L.) amazonensis. This study demonstrated the importance of differential diagnosis for leishmaniasis; the association of two or more indirect methods increased diagnosis sensitivity.
我们评估了血清学和寄生虫学方法对巴西南部巴拉那州中部地区皮肤利什曼病(CL)患者的诊断效果。比较了五组:临床诊断组、寄生虫学诊断组、接触者、非流行区居民以及其他病因携带者。从巴西利什曼原虫(维安尼亚利什曼原虫)和亚马逊利什曼原虫(利什曼原虫)的前鞭毛体制备了两种抗原,用于间接免疫荧光试验、酶联免疫吸附测定和免疫印迹分析。寄生虫学方法检测出79.3%临床诊断为CL的患者;通过聚合酶链反应鉴定出寄生虫为巴西利什曼原虫(维安尼亚利什曼原虫)。血清学方法对同源抗原显示出95%的敏感性。免疫印迹分析揭示了用于CL诊断的特异性蛋白质,当使用巴西利什曼原虫(维安尼亚利什曼原虫)作为抗原时检测出96.6%的患者,使用亚马逊利什曼原虫(利什曼原虫)时检测出83.3%的患者。本研究证明了利什曼病鉴别诊断的重要性;两种或更多间接方法联合使用可提高诊断敏感性。
Exp Dermatol. 2008-12
Rev Peru Med Exp Salud Publica. 2024-10-21
Pathogens. 2021-9-1