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A novel non-invasive diagnostic sampling technique for cutaneous leishmaniasis
Yasaman Taslimi1, Pardis Sadeghipour1, Sima Habibzadeh1
1Department of Immunotherapy and Leishmania Vaccine Research, Pasteur Institute of Iran, Tehran, Iran.
Plos Neglected Tropical Diseases
|July 14, 2017
Summary
A new non-invasive tape stripping method accurately diagnoses cutaneous leishmaniasis (CL). This painless technique offers a rapid, user-friendly, and cost-effective alternative to invasive diagnostic procedures for CL detection.
Area of Science:
- Dermatology
- Parasitology
- Molecular Diagnostics
Background:
- Accurate diagnosis of cutaneous leishmaniasis (CL) is crucial for effective treatment and epidemiological tracking.
- Current diagnostic methods, like microscopy and culture, are invasive, requiring skilled personnel and posing risks of pain, infection, and scarring, particularly concerning for pediatric patients.
Purpose of the Study:
- To develop and evaluate a novel, non-invasive diagnostic method for cutaneous leishmaniasis.
- To provide a painless, rapid, and user-friendly alternative to traditional invasive diagnostic techniques.
Main Methods:
- A sequential tape stripping method was employed to collect DNA samples from the skin surface of patients with suspected CL.
- Polymerase Chain Reaction (PCR) was used for species identification from the collected DNA.
- Samples were collected from 119 CL patients, 15 fungal-infected lesions, and 54 healthy skin areas.
Main Results:
- The tape stripping method successfully isolated DNA from skin lesions.
- PCR analysis demonstrated high specificity and sensitivity for Leishmania species identification.
- Sampling duration was less than one minute per patient.
Conclusions:
- Sequential tape stripping is a sensitive, non-invasive, and cost-effective diagnostic tool for cutaneous leishmaniasis.
- This method is suitable for both field applications and clinical healthcare settings.
- It offers a significant improvement over traditional invasive diagnostic assays, reducing patient discomfort and risks.
