Understanding drug resistance in human intestinal protozoa

Hend Aly El-Taweel1

  • 1Medical Research Institute, Alexandria University, Alexandria, Egypt, hend_omn@hotmail.com.

Parasitology Research
|March 19, 2015
PubMed

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.

Related Concept Videos

Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
2.1K
Anthelminthic Agents01:15

Anthelminthic Agents

Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...
89
Diversity of Protists II01:27

Diversity of Protists II

Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
2.2K
Diversity of Protists I01:15

Diversity of Protists I

Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
2.3K
Carrier-Mediated Transport01:06

Carrier-Mediated Transport

Carrier-mediated transport is a pivotal process in drug absorption, particularly for lipid-insoluble drugs, and encompasses facilitated diffusion and active transport. Facilitated diffusion allows drugs to move along their concentration gradient without energy expenditure, while active transport utilizes ATP to drive drug movement against this gradient.
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
1.6K
Treatment Resistant Cancers02:56

Treatment Resistant Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.9K