Entamoeba gingivalis and Trichomonas tenax: Protozoa parasites living in the mouth

Santos, Juliana Oliveira; Roldán, William H.

doi:10.1016/j.archoralbio.2023.105631

Cited by 6 publications

(1 citation statement)

References 113 publications

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“…The oral cavity has the second largest number and variety of microorganisms in the body, housing millions of microorganisms that form the oral microbiota (Zhang et al 2018 ). These microorganisms form biofilms (dental plaque) and coexist in symbiotic harmony with the host, but when the microbial equilibrium is broken (dysbiosis) different oral diseases such as dental caries and periodontal disease can occur (Dewhirst et al 2010 , Lourenço et al 2014 , Lamont et al 2018 , Yaseen et al 2021 , Martin-Garcia et al 2022 , Santos and Roldán 2023 ). Bacteria are the most abundant microorganisms (For example: Streptococcus spp., Gemella spp., Rothia spp., Neisseria spp., Haemophilus spp., Prevotella spp., and Veillonela spp.)…”

Section: Introductionmentioning

confidence: 99%

First molecular detection of Entamoeba gingivalis subtypes in individuals from Turkey

Örsten

Şahin

Yılmaz

et al. 2023

Pathogens and Disease

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Entamoeba gingivalis is a parasitic protozoan that colonizes the human oral cavity and there are two subtypes (ST1 and ST2) that have been identified to date. However, there are no reports on the molecular detection or characterization of E. gingivalis in Turkey. The objective of this study was to detect the presence of E. gingivalis in Turkish healthy individuals and those with periodontal disease and to subtype the isolates using molecular techniques. Samples from the oral cavity of 94 individuals were taken and the presence of E. gingivalis was determined by PCR using primers for SsrRNA and the amplicons were then confirmed by DNA sequencing. Each participant completed a questionnaire that included demographic data, habits and lifestyle, as well as health status. The presence of E. gingivalis was detected in a total of 19 samples (11 patients and 8 healthy individuals). Molecular characterization determined that 12 samples belonged to ST1 and 7 samples belonged to ST2. The presence of E. gingivalis was higher in patients with periodontal disease than in healthy individuals, and this association was statistically significant (p < 0.05). This study constitutes the first report of molecular detection and subtyping of E. gingivalis in Turkey.

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Section: Introductionmentioning

confidence: 99%

First molecular detection of Entamoeba gingivalis subtypes in individuals from Turkey

Örsten

Şahin

Yılmaz

et al. 2023

Pathogens and Disease

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Novel Insights into the Human Microbiome and Its Functions

Singh,

Mal,

Kalra

et al. 2024

Probiotics as Live Biotherapeutics for Veterinary and Human Health, Volume 2

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The Pathology of the Brain Eating Amoeba Naegleria fowleri

Borkens

2024

Indian J Microbiol

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The genus Naegleria is a taxonomic subfamily consisting of 47 free-living amoebae. The genus can be found in warm aqueous or soil habitats worldwide. The species Naegleria fowleri is probably the best-known species of this genus. As a facultative parasite, the protist is not dependent on hosts to complete its life cycle. However, it can infect humans by entering the nose during water contact, such as swimming, and travel along the olfactory nerve to the brain. There it causes a purulent meningitis (primary amoebic meningoencephalitis or PAME). Symptoms are severe and death usually occurs within the first week. PAME is a frightening infectious disease for which there is neither a proven cure nor a vaccine. In order to contain the disease and give patients any chance to survival, action must be taken quickly. A rapid diagnosis is therefore crucial. PAME is diagnosed by the detection of amoebae in the liquor and later in the cerebrospinal fluid. For this purpose, CSF samples are cultured and stained and finally examined microscopically. Molecular techniques such as PCR or ELISA support the microscopic analysis and secure the diagnosis.

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Entamoeba gingivalis and Trichomonas tenax: Protozoa parasites living in the mouth

Cited by 6 publications

References 113 publications

First molecular detection of Entamoeba gingivalis subtypes in individuals from Turkey

First molecular detection of Entamoeba gingivalis subtypes in individuals from Turkey

Novel Insights into the Human Microbiome and Its Functions

The Pathology of the Brain Eating Amoeba Naegleria fowleri

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