Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru.
Am J Trop Med Hyg. 2011 Apr;84(4):556-61. doi: 10.4269/ajtmh.2011.10-0556.
We hypothesized that Leishmania kDNA may be present in urine of patients with cutaneous leishmaniasis (CL). Urine samples and standard diagnostic specimens were collected from patients with skin lesions. kDNA polymerase chain reaction (PCR) was performed on samples from patients and 10 healthy volunteers from non-endemic areas. Eighty-six of 108 patients were diagnosed with CL and 18 (21%) had detectable Leishmania Viannia kDNA in the urine. Sensitivity and specificity were 20.9% (95% confidence interval [CI] 12.3-29.5%) and 100%. Six of 8 patients with mucocutaneous involvement had detectable kDNA in urine versus 12 of 78 patients with isolated cutaneous disease (P < 0.001). L. (V.) braziliensis (N = 3), L. (V.) guyanensis (N = 6), and L. (V.) peruviana (N = 3) were identified from urine. No healthy volunteer or patient with an alternate diagnosis had detectable kDNA in urine. Sensitivity of urine PCR is sub-optimal for diagnosis. On the basis of these preliminary data in a small number of patients, detectable kDNA in urine may identify less localized forms of infection and inform treatment decisions.
我们假设利什曼原虫 kDNA 可能存在于皮肤利什曼病(CL)患者的尿液中。从有皮肤损伤的患者和 10 名来自非流行地区的健康志愿者中采集尿液样本和标准诊断标本。对患者和 10 名健康志愿者的样本进行 kDNA 聚合酶链反应(PCR)检测。108 名患者中有 86 名被诊断为 CL,18 名(21%)患者的尿液中可检测到利什曼原虫 Viannia kDNA。敏感性和特异性分别为 20.9%(95%置信区间[CI] 12.3-29.5%)和 100%。6 名黏膜皮肤受累患者的尿液中有可检测到的 kDNA,而 78 名单纯皮肤疾病患者中有 12 名(P<0.001)。从尿液中鉴定出 L.(V.) braziliensis(N=3)、L.(V.)guyanensis(N=6)和 L.(V.)peruviana(N=3)。没有健康志愿者或其他诊断患者的尿液中可检测到 kDNA。尿液 PCR 的敏感性不适合用于诊断。基于少数患者的初步数据,尿液中可检测到的 kDNA 可能识别出感染的非局部形式,并为治疗决策提供信息。
Am J Trop Med Hyg. 2019-10
Exp Dermatol. 2008-12
Am J Trop Med Hyg. 2021-1-11
Diagn Microbiol Infect Dis. 2014-8
Diagn Microbiol Infect Dis. 2005-3
Acta Parasitol. 2024-9
PLoS Negl Trop Dis. 2021-6
Mem Inst Oswaldo Cruz. 2007-12
J Vet Diagn Invest. 2008-1
Diagn Microbiol Infect Dis. 2008-2
Lancet Infect Dis. 2007-9
Trans R Soc Trop Med Hyg. 2008-1