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Eur J Clin Microbiol Infect Dis. 2017 Sep;36(9):1531-1540. doi: 10.1007/s10096-017-2965-0. Epub 2017 Mar 22.

Blastocystis: how do specific diets and human gut microbiota affect its development and pathogenicity?

Author information

1
Department of Medical Biology, Faculty of Medical Sciences, University of Warmia and Mazury, Żołnierska 14 C, Olsztyn, 10-561, Poland. malgorzata.lepczynska@uwm.edu.pl.
2
Department of Neurology and Neurosurgery, Faculty of Medical Sciences, University of Warmia and Mazury, Warszawska 30, Olsztyn, Poland.
3
Department of Medical Biology, Faculty of Medical Sciences, University of Warmia and Mazury, Żołnierska 14 C, Olsztyn, 10-561, Poland.
4
Department of Nursing, Faculty of Medical Sciences, University of Warmia and Mazury, Żołnierska 14 C, Olsztyn, Poland.
5
Regional Specialized Children's Hospital in Olsztyn, Żołnierska 18A, Olsztyn, Poland.

Abstract

Blastocystis is an enteric parasite that inhabits the gastrointestinal tract of humans and many animals. This emerging parasite has a worldwide distribution. It is often identified as the most common eukaryotic organism reported in human fecal samples. This parasite is recognized and diagnosed more often than ever before. Furthermore, some strains develop resistance against currently recommended drugs, such as metronidazole; therefore, the use of natural remedies or special diets has many positive aspects that may address this problem. The goal of this review is to compare natural treatments and various diets against the efficacy of drugs, and describe their influence on the composition of the gut microbiota, which affects Blastocystis growth and the occurrence of symptoms. This article reviews important work in the literature, including the classification, life cycle, epidemiology, pathogenesis, pathogenicity, genetics, biology, and treatment of Blastocystis. It also includes a review of the current knowledge about human gut microbiota and various diets proposed for Blastocystis eradication. The literature has revealed that garlic, ginger, some medical plants, and many spices contain the most effective organic compounds for parasite eradication. They work by inhibiting parasitic enzymes and nucleic acids, as well as by inhibiting protein synthesis. The efficacy of any specific organic compound depends on the Blastocystis subtype, and, consequently, on its immunity to treatment. In conclusion, the article discusses the findings that human gut microbiota composition triggers important mechanisms at the molecular level, and, thus, has a crucial influence on the parasitic pathogenicity.

KEYWORDS:

Allicin; Blastocystis Infection; Nitazoxanide; Saccharomyces Boulardii; Vacuolar Form

PMID:
28326446
PMCID:
PMC5554277
DOI:
10.1007/s10096-017-2965-0
[Indexed for MEDLINE]
Free PMC Article

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