Is Trichomonas tenax a Parasite or a Commensal?

Ribeiro, Luiz Carlos de Santana; Santos, C. A. N.; Benchimol, Marlene

doi:10.1016/j.protis.2015.02.002

Cited by 49 publications

(58 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There is a growing body of evidence indicating the association of human oral protists and their potential contribution to periodontal disease (Athari et al 2007;Decarneri and Giannone 1964;Dudko and Kurnatowska 2007;Linke et al 1989;Marty et al 2015;Ribeiro et al 2015). In this study, trichomonads were found to be widely distributed in canine dental plaque.…”

Section: %supporting

confidence: 47%

“…; Ribeiro et al. ). In this study, trichomonads were found to be widely distributed in canine dental plaque.…”

Section: Discussionmentioning

confidence: 97%

“…In the human mouth, trichomonads are commonly detected with prevalence rates varying between 12.7% and 37%, showing associations to periodontal disease (Athari et al 2007;Cuevas et al 2008;Dudko and Kurnatowska 2007). Several recent studies have also indicated the parasitic potential of oral trichomonads, and question their prior description as commensal organisms (El Sibaei et al 2012;Ribeiro et al 2015;Yamamoto et al 2000).…”

Section: %mentioning

confidence: 99%

See 2 more Smart Citations

The Prevalence of Canine Oral Protozoa and Their Association with Periodontal Disease

Patel

Colyer²,

Harris³

et al. 2016

J Eukaryotic Microbiology

View full text Add to dashboard Cite

Periodontal disease is one of the most important health concerns for companion animals. Research into canine forms of periodontitis has focused on the identification and characterization of the bacterial communities present. However, other microorganisms are known to inhabit the oral cavity and could also influence the disease process. A novel, broad spectrum 18S PCR was developed and used, in conjunction with next-generation sequencing analyses to target the identification of protists. Trichomonas sp. and Entamoeba sp. were identified from 92 samples of canine plaque. The overall prevalence of trichomonads was 56.52% (52/92) and entamoebae was 4.34% (4/92). Next-generation sequencing of pooled healthy, gingivitis, earlystage periodontitis, and severe periodontitis samples revealed the proportion of trichomonad sequences to be 3.51% (health), 2.84% (gingivitis), 6.07% (early periodontitis), and 35.04% (severe periodontitis), respectively, and entamoebae to be 0.01% (health), 0.01% (gingivitis), 0.80% (early-stage periodontitis), and 7.91% (severe periodontitis) respectively. Both genera of protists were statistically associated with plaque from dogs with periodontal disease. These findings provide the first conclusive evidence for the presence of oral protozoa in dog plaque and suggest a possible role for protozoa in the periodontal disease process.

show abstract

Section: %supporting

confidence: 47%

“…; Ribeiro et al. ). In this study, trichomonads were found to be widely distributed in canine dental plaque.…”

Section: Discussionmentioning

confidence: 97%

Section: %mentioning

confidence: 99%

See 1 more Smart Citation

The Prevalence of Canine Oral Protozoa and Their Association with Periodontal Disease

Patel

Colyer²,

Harris³

et al. 2016

J Eukaryotic Microbiology

View full text Add to dashboard Cite

show abstract

“…T. vaginalis causes opportunistic respiratory infections in humans and has been linked to respiratory failure in association with the pathogenic fungus Pneumocystis carinii [1]. Trichomonas tenax inhabits the oral cavity of humans, generally in people with poor oral hygiene [87]. Debate currently surrounds the pathogenic potential of T. tenax, though a recent report suggests it interacts with, and causes damage to host cell lines in a similar way to T. vaginalis [87].…”

Section: Bulky Genomes Encoding Versatilitymentioning

confidence: 99%

“…Trichomonas tenax inhabits the oral cavity of humans, generally in people with poor oral hygiene [87]. Debate currently surrounds the pathogenic potential of T. tenax, though a recent report suggests it interacts with, and causes damage to host cell lines in a similar way to T. vaginalis [87]. Trichomonas gallinae is a pathogen that infects the oral-nasal cavity of numerous, distantly related bird species [88,89], and is closely related to T. vaginalis [1].…”

Section: Bulky Genomes Encoding Versatilitymentioning

confidence: 99%