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Multidrug resistant Mycobacterium leprae from patients with leprosy
S Maeda1, M Matsuoka, N Nakata
1Leprosy Research Center, National Institute of Infectious Diseases, Higashimurayama-shi, Tokyo 189-0002, Japan.
Antimicrobial Agents and Chemotherapy
|November 16, 2001
Summary
Multidrug resistance is emerging in Mycobacterium leprae, the bacteria causing leprosy. Analysis of key genes in 88 isolates revealed mutations in over two genes in 14.8%, indicating a growing challenge for treatment.
Area of Science:
- Microbiology
- Genetics
- Epidemiology
Background:
- Leprosy remains a public health concern globally.
- Drug resistance in Mycobacterium leprae complicates treatment strategies.
- Genetic analysis is crucial for understanding drug resistance mechanisms.
Purpose of the Study:
- To investigate the prevalence of drug resistance mutations in Mycobacterium leprae.
- To analyze genetic variations in key resistance-associated genes.
- To identify potential emergence of multidrug-resistant leprosy strains.
Main Methods:
- Sequencing of folP1, rpoB, and gyrA genes from 88 Mycobacterium leprae isolates.
- Isolates were sourced from leprosy patients across multiple countries.
- Analysis focused on identifying mutations linked to drug resistance.
Main Results:
- Mutations in more than two genes were detected in 13 out of 88 isolates (14.8%).
- These mutations are indicative of potential multidrug resistance.
- Geographic distribution of resistant strains was observed across Japan, Haiti, Indonesia, Pakistan, and the Philippines.
Conclusions:
- The findings suggest the emergence of multidrug-resistant Mycobacterium leprae.
- Continued surveillance of genetic markers for drug resistance is essential.
- This highlights the need for updated diagnostic and treatment protocols for leprosy.