Higher prevalence of Blastocystis hominis in healthy individuals than patients with gastrointestinal symptoms from Ahvaz, southwestern Iran.
Comp Immunol Microbiol Infect Dis
; 65: 160-164, 2019 Aug.
Article
in En
| MEDLINE
| ID: mdl-31300108
BACKGROUND: Blastocystis, a common intestinal protozoan of humans and animals, infected more than 1 billion people around the world. This enteric protozoan is frequently reported in both healthy individuals and patients with gastrointestinal (GI) symptoms. METHODS: Three hundred and forty-five fecal samples including 151 GI patients and 194 healthy individuals were examined by microscopy, culture and PCR-sequencing techniques to determine Blastocystis frequency and subtype (ST) variation. RESULTS: The occurrence of Blastocystis was detected 56 (16.2%) and 85 (24.6%) by microscopy, culture and PCR methods, respectively. Out of the 85 positive patients, 60 (70.6%) were asymptomatic and 25 (29.4%) were symptomatic. The results of 41 successfully sequenced isolates identified 8 (19.5%), 8 (19.5%), and 25 (61.0%) ST1, ST2, and ST3, respectively. CONCLUSION: This study has found that Blastocystis was more common in healthy individuals than GI patients. Another finding was that no correlation was found between clinical symptoms and Blastocystis STs.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Blastocystis Infections
/
Blastocystis hominis
/
Gastrointestinal Diseases
Type of study:
Diagnostic_studies
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
Country/Region as subject:
Asia
Language:
En
Journal:
Comp Immunol Microbiol Infect Dis
Year:
2019
Document type:
Article
Affiliation country:
Iran
Country of publication:
United kingdom