Genetic Variation in Entamoeba Species
Author Information
Author(s): Parija Subhash Chandra, Khairnar Krishna
Primary Institution: Jawaharlal Institute of Postgraduate Medical Education and Research
Hypothesis
Is there intra-species genetic variation in Entamoeba histolytica, Entamoeba dispar, and Entamoeba moshkovskii in Puducherry, India?
Conclusion
The study found mutations in the ribosomal RNA genes of E. histolytica and E. moshkovskii, indicating genetic variation among these isolates.
Supporting Evidence
- 70 stool specimens were positive for E. histolytica.
- 171 stool specimens were positive for E. dispar.
- 37 stool specimens were positive for E. moshkovskii.
- Mutations were detected in five E. histolytica isolates and three E. moshkovskii isolates.
Takeaway
Scientists looked at tiny changes in the genes of some germs that can make people sick, and they found some differences that could help explain why some people get sick and others don't.
Methodology
The study used nested multiplex polymerase chain reaction (NM-PCR), riboprinting, and single strand conformation polymorphism (SSCP) analysis to detect genetic variations.
Limitations
The study only screened a small region of the gene for E. dispar, which may have limited the detection of mutations.
Participant Demographics
Patients with gastrointestinal discomfort from Puducherry, India.
Digital Object Identifier (DOI)
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