Prevalence of Blastocystis and Dientamoeba fragilis in diarrheal patients in Corum, Türkiye

Prevalence of Blastocystis and Dientamoeba fragilis in diarrheal patients in Corum, Türkiye

To investigate the prevalence of Blastocystis and Dientamoeba fragilis in diarrhea patients and healthy individuals in Corum, Türkiye, fecal samples from 92 diarrhea patients and 50 healthy individuals were collected and evaluated using direct microscopy and molecular methods to screen for bacteria,...

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Bibliographic Details
Published in:Parasitology research (1987) Vol. 122; no. 12; pp. 2977 - 2987
Main Authors: Gureser, Ayşe Semra, Karasartova, Djursun, Sarzhanov, Fakhiriddin, Kosar, Nezahat, Taylan-Ozkan, Aysegul, Dogruman-Al, Funda
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-12-2023
Springer Nature B.V
Subjects:
Alleles
Biomedical and Life Sciences
Biomedicine
Blastocystis
Diarrhea
Dientamoeba fragilis
Feces
Immunology
Intestinal microflora
Medical Microbiology
Microbiology
Microbiomes
Rotavirus
Statistical analysis
Turkey
Türkiye
Blastocystis STs
Diarrheal patients
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Summary:To investigate the prevalence of Blastocystis and Dientamoeba fragilis in diarrhea patients and healthy individuals in Corum, Türkiye, fecal samples from 92 diarrhea patients and 50 healthy individuals were collected and evaluated using direct microscopy and molecular methods to screen for bacteria, protozoa, and viruses. The prevalence of Blastocystis was 24.6% in total and more frequent in the healthy group (30.0%). The commonly detected STs (subtypes) were ST3 (40.0%) and ST2 (34.2%). The distribution of Blastocystis STs in the healthy and diarrheal groups did not show any difference in sex and age, but ST3 was detected more frequently in patients aged from 40 to 59 years ( p < 0.05). Alleles 4 (8/12) and 2 (4/12) were present in ST1; 9 (3/5) and 12 (2/5) in ST2; 34 (9/14), 36 (3/14), and 38 (2/14) in ST3; and only allele 42 (2/2) in ST4. D. fragilis was present in 8.4% of the population. However, there was no statistically significant difference between the healthy and diarrheic groups (12.0% and 6.5%, respectively), neither with respect to age nor sex. Co-infection was 58.3% and was more frequent in healthy individuals (33.3%) than in diarrhea patients (25.0%). Blastocystis ST3 was the most common subtype detected, with D. fragilis at 33.3%. Salmonella , Shigella , or helminth eggs were not observed in all groups, but Entamoeba histolytica , Giardia intestinalis , Cryptosporidium , Rotavirus, Adenovirus, and Clostridium difficile toxin were found only in diarrhea patients. These findings support the hypothesis that Blastocystis and D. fragilis may be part of the healthy human gut microbiome.
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ISSN:0932-0113
1432-1955
DOI:10.1007/s00436-023-07987-0