Hamedanipour Mohammad, Barati Mohammad, Mirabedini Zahra, Mohebali Mehdi, Latifi Alireza, Kakooei Zahra
Infectious Diseases Research Center, Aja University of Medical Sciences, Tehran, Iran.
Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Iran J Parasitol. 2025 Jan-Mar;20(1):13-20. doi: 10.18502/ijpa.v20i1.18101.
BACKGROUND: Cutaneous Leishmaniasis (CL) is a highly infectious parasitic disease in Iran. Although various diagnostic methods are available, identifying a sensitive and specific approach remains essential for effective treatment and disease management. We aimed to compare microscopy, the Skin Test (LST), and the Direct Agglutination Test (DAT) for diagnosis of human CL. METHODS: Fifty samples were obtained from clinically suspected CL cases. The results of conventional methods, including microscopy, the LST, and the DAT, were then compared among these samples. For microscopical examination considered a gold standard, smears were stained with Giemsa 10% and then examined for the observation of amastigote forms for the LST, 0.1 ml of standard solution was intradermally injected into positive patients, and then indurations were measured after 48-72 hours; an induration of ≥5 mm was considered positive. Additionally, anti- antibodies were detected using DAT on positive collected serum samples. RESULTS: Out of 50 samples collected from individuals suspected of CL, 66% (33/50) of them showed positive results using microscopic examination. Among these 33 patients diagnosed with CL, 9% (3/33) tested positive in the LST, and only 1 (3%) patient showed specific antibodies against using DAT. CONCLUSION: The microscopy method appears to be more suitable for diagnosing CL. However, there is a clear need for additional diagnostic methods with more validity for CL.
背景:皮肤利什曼病(CL)在伊朗是一种高度传染性的寄生虫病。尽管有多种诊断方法可用,但确定一种敏感且特异的方法对于有效治疗和疾病管理仍然至关重要。我们旨在比较显微镜检查、皮肤试验(LST)和直接凝集试验(DAT)在诊断人类CL中的效果。 方法:从临床疑似CL病例中获取了50份样本。然后比较这些样本中常规方法(包括显微镜检查、LST和DAT)的结果。对于被视为金标准的显微镜检查,涂片用10%吉姆萨染色,然后检查有无无鞭毛体形式;对于LST,将0.1 ml标准溶液皮内注射到阳性患者体内,然后在48 - 72小时后测量硬结;硬结≥5 mm被视为阳性。此外,对采集的阳性血清样本使用DAT检测抗抗体。 结果:在从疑似CL的个体中收集的50份样本中,66%(33/50)通过显微镜检查显示阳性结果。在这33例被诊断为CL的患者中,9%(3/33)在LST中检测为阳性,只有1例(3%)患者使用DAT显示出针对的特异性抗体。 结论:显微镜检查方法似乎更适合诊断CL。然而,显然需要更多对CL更有效的诊断方法。
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