ASSOCIATION BETWEEN BLASTOCYSTIS SP INFECTION AND PARACLINICAL PARAMETERS IN PATIENTS WITH COLITIS

Thị Hồng Châu Bùi, Thị Xuân Thảo Lê, Kim Hải Nguyễn, Thanh Thanh Võ , Thị Huyên Đinh, Trương Công Minh Nguyễn

Main Article Content

Abstract

Background: The pathogenesis of Blastocystis sp. remains unclear. Some studies have shown that the presence of B.hominis is associated with clinical symptoms such as acute or chronic diarrhea, abdominal pain, anorexia, flatulence, nausea, and vomiting, as well as decreased hemoglobin (Hb) levels and serum iron. The aim of this study was to comprehensively evaluate the prevalence of Blastocystis sp. infection, associated symptoms, and some indices of complete blood count in patients with colitis. Method: A cross-sectional study was conducted on 128 patients with colitis and 132 individuals with other pathologies, aged 18 and over, who had indications for fresh stool examination, at the University Medical Center HCMC, Ho Chi Minh City, Vietnam, from January to October 2024. Results: There were no significant differences in the distribution of demographic characteristics between the colitis group and the other disease groups. Male sex, age over 60 years, and normal BMI were the predominant characteristics in both groups. The prevalence of Blastocystis infection in the colitis group was 14.1%. Statistically significant differences were found in LYM% (p = 0.02), MONO% (p = 0.003), and RBC (p = 0.04) between colitis patients with B.hominis infection and those without. Conclusion: The study showed an association between Blastocystis sp. and certain hematological indices, as well as abdominal pain symptoms in patients with colitis, although the infection rate was not higher than in other disease groups. Further in-depth studies using more sensitive detection methods and better control of confounding factors are needed to clarify the role of Blastocystis in the pathogenesis of colitis

Article Details

References

1. Aydemir S, Barlik F, Yurekturk S, Saygin M, Hakan Unlu, et al. Prevalence of Blastocystis infection in humans in Türkiye: A systematic review and meta-analysis. Microbial pathogenesis, 2024, 195, 106876. //doi.org/10.1016/j.micpath. 2024.106876.
2. Bu S, Cheng X, Chen M, Yu Y. Ulcerative Colitis: Advances in Pathogenesis, Biomarkers, and therapeutic atrategies. Pharmgenomics Pers Med. 2025; 18:219-238. doi:10.2147/PGPM. S536459.
3. Pawelec-Pęciak O, Łanocha-Arendarczyk N, Grzeszczak K, & Kosik-Bogacka D. The Role of Blastocystis spp. in the Etiology of gastrointestinal and autoimmune diseases. Pathogens (Basel, Switzerland), 2025, 14(4), 313. //doi.org/10.3390/pathogens14040313.
4. Matovelle C, Tejedor MT, Monteagudo LV, Beltrán A, Quílez J. Prevalence and associated factors of blastocystis sp. infection in patients with gastrointestinal symptoms in Spain: a case-control study. Trop Med Infect Dis. 2022; 7(9): 226.
5. Javaherizadeh H, Khademvatan S, Soltani S, Torabizadeh M, Yousefi E. Distribution of haematological indices among subjects with Blastocystis hominis infection compared to controls. Prz Gastroenterol. 2014; 9(1):38-42. doi:10.5114/pg.2014.40849.
6. Kök M, Çekin Y, Çekin AH, Uyar S, Harmandar F, Şahintürk Y. The role of Blastocystis hominis in the activation of ulcerative colitis. Turk J Gastroenterol. 2019; 30(1):40-46. doi:10.5152/tjg.2018.18498.
7. Al-Oda S, Abbas S, & Rasool K. Impact of Blastocystis hominis infection on immunological parameters in patients with diarrhea: a cross-sectional study. Georgian medical news, 2023, (338), 69–73.
8. Beyhan YE, Güven İ, & Aydın, M. Detection of Blastocystis sp. in ulcerative colitis, Crohn's and chronic diarrheal patients by microscopy, culture and real-time polymerase chain reaction. Microbial pathogenesis, 2023, 177, 106039. //doi.org/ 10.1016/j.micpath.2023.106039.
9. Billy V, Lhotská Z, Jirků M, et al. Blastocystis Colonization Alters the Gut Microbiome and, in Some Cases, Promotes Faster Recovery From Induced Colitis. Front Microbiol. 2021;12:641483. Published 2021 Apr 7. doi:10.3389/fmicb. 2021.641483.
10. Robles-Cabrera MX, Maguiña JL, Gonzales-Huerta L, Panduro-Correa V, Dámaso-Mata B, et al. Blastocystis species and gastrointestinal symptoms in Peruvian adults âttended in a Public Hospital. Infection & chemotherapy, 2021, 53(2), 374–380.