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Published on: April 2, 2013
Understanding drug resistance in human intestinal protozoa
1Medical Research Institute, Alexandria University, Alexandria, Egypt, hend_omn@hotmail.com.
Abstract:
Infections with intestinal protozoa continue to be a major health problem in many areas of the world. The widespread use of a limited number of therapeutic agents for their management and control raises concerns about development of drug resistance. Generally, the use of any antimicrobial agent should be accompanied by meticulous monitoring of its efficacy and measures to minimize resistance formation. Evidence for the occurrence of drug resistance in different intestinal protozoa comes from case studies and clinical trials, sometimes with a limited number of patients. Large-scale field-based assessment of drug resistance and drug sensitivity testing of clinical isolates are needed. Furthermore, the association of drug resistance with certain geographic isolates or genotypes deserves consideration. Drug resistance has been triggered in vitro and has been linked to modification of pyruvate:ferredoxin oxidoreductase, nitroreductases, antioxidant defense, or cytoskeletal system. Further mechanistic studies will have important implications in the development of second generation therapeutic agents.
Insights
Drug resistance in intestinal protozoa is a growing concern due to limited treatments. Further research is needed to understand resistance mechanisms and develop new therapies.
Area of Science:
- Medical Parasitology
- Antimicrobial Resistance
Background:
- Intestinal protozoan infections remain a significant global health issue.
- Limited therapeutic options for these infections raise concerns about emerging drug resistance.
Purpose of the Study:
- To highlight the growing problem of drug resistance in intestinal protozoa.
- To emphasize the need for monitoring drug efficacy and developing strategies to minimize resistance.
Main Methods:
- Review of existing evidence from case studies and clinical trials.
- Identification of areas for future research, including large-scale field assessments and genotypic analysis.
Main Results:
- Evidence of drug resistance in intestinal protozoa exists but is often based on limited patient data.
- Drug resistance mechanisms involve modifications in key cellular pathways like pyruvate:ferredoxin oxidoreductase and nitroreductases.
Conclusions:
- There is an urgent need for comprehensive drug resistance and sensitivity testing in clinical isolates.
- Understanding the molecular basis of drug resistance is crucial for developing novel anti-protozoal agents.
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