Rare case of<i>Prevotella pleuritidis</i>lung abscess

Asif, Abuzar A; Roy, Moni; Ahmad, Sharjeel

doi:10.1136/bcr-2020-235960

Cited by 9 publications

(3 citation statements)

References 14 publications

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“…Some novel Prevotella species without knowledge of their preferred habitat have been among recoveries, especially from pus specimens. For example, the description of P. pleuritidis was performed based on a single strain from pleural fluid [ 201 ], and since then, its presence was reported also from lung and liver abscesses [ 202 , 203 ]. Noteworthy are the frequently abundant findings of P. pleuritidis among the oral microbiota of the study populations from the United Arab Emirates and Sweden: in subgingival biofilms of heavy smokers [ 204 ] and in saliva of early-onset rheumatoid arthritis patients [ 205 ], respectively.…”

Section: Non-oral Infections With Emphasis On Oral Prevotellamentioning

confidence: 99%

Prevotella species as oral residents and infectious agents with potential impact on systemic conditions

Könönen

Fteita

Gürsoy

et al. 2022

Journal of Oral Microbiology

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Oral Prevotella are known as anaerobic commensals on oral mucosae and in dental plaques from early life onwards, including pigmented P. melaninogenica, P. nigrescens, and P. pallens and non-pigmented Prevotella species. Many Prevotella species contribute to oral inflammatory processes, being frequent findings in dysbiotic biofilms of periodontal diseases ( P. intermedia, P. nigrescens ), cariotic lesions ( P. denticola, Alloprevotella (formerly Prevotella ) tannerae ), endodontic infections ( P. baroniae, P. oris, P. multisaccharivorax ), and other clinically relevant oral conditions. Over the years, several novel species have been recovered from the oral cavity without knowledge of their clinical relevance. Within this wide genus, virulence properties and other characteristics like biofilm formation seemingly vary in a species- and strain-dependent manner, as shown for the P. intermedia group organisms ( P. aurantiaca, P. intermedia, P. nigrescens , and P. pallens ). Oral Prevotella species are identified in various non-oral infections and chronic pathological conditions. Here, we have updated the knowledge of the genus Prevotella and the role of Prevotella species as residents and infectious agents of the oral cavity, as well as their detection in non-oral infections, but also gathered information on their potential link to cancers of the head and neck, and other systemic disorders.

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Section: Non-oral Infections With Emphasis On Oral Prevotellamentioning

confidence: 99%

Prevotella species as oral residents and infectious agents with potential impact on systemic conditions

Könönen

Fteita

Gürsoy

et al. 2022

Journal of Oral Microbiology

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“…55 It has been rarely reported to be particularly important in the pathogenesis of lung abscesses. 56 Moreover, P. pleuritidis and others were significantly identified in smokers’ oral microbiota compared to non-smokers. 57 Concerning limitations of the study, the oral health, preexisting periodontal disease, and smoking data were unavailable, so these confounding factors might affect the obtained result.…”

Section: Discussionmentioning

confidence: 99%

Classification of salivary bacteriome in asymptomatic COVID-19 cases based on long-read nanopore sequencing

Jitvaropas

Mayuramart

Sawaswong

et al. 2022

Exp Biol Med (Maywood)

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The coronavirus (COVID-19) global pandemic has impacted the health of almost everyone, including changes in their salivary microbiota. Since 2019, there has been an increase in the number of new COVID-19 cases in Thailand. Therefore, COVID-19 active case finding is important for early detection and epidemic control. Moreover, the dynamic changes of salivary bacteriome in asymptomatic COVID-19 cases are largely unknown. This research aimed to investigate and compare the salivary bacteriome and the co-infectious bacterial pathogens in the asymptomatic COVID-19 positive group to the negative group, based on novel nanopore sequencing. This cohort was a cross-sectional study including saliva samples collected from 82 asymptomatic participants (39 COVID-19 positive and 43 COVID-19 negative cases). All samples were sequenced for the full-length bacterial 16S rDNA. The alpha and beta diversity analyses were not significantly different between groups. The three major species in salivary bacteriome including Veillonella parvula, Streptococcus mitis, and Prevotella melaninogenica were observed in both groups. Interestingly, Lautropia mirabilis was a significantly enriched species in the saliva of the asymptomatic COVID-19-positive cases based on linear discriminant analysis effect size (LEfSe) analysis. The results suggested that L. mirabilis was a co-infectious agent in the asymptomatic COVID-19 group. However, the potential role of L. mirabilis should be validated in further experimental studies.

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“…Initial surgical cultures from the FNA collected during EBUS grew coagulase-negative Staphylococci (CoNS), a type of staph commonly found as part of the normal flora of the skin. The other organism that was identified during mediastinoscopy was a Prevotella species, a genus of bacteria involving obligate, anaerobic, gram-negative bacteria that are commensal organisms of the oral cavity, gut, and vaginal mucosa [ 3 ].…”

Section: Discussionmentioning

confidence: 99%