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  1. Article: Microbial Complexity of Oral Cavity of Healthy Dogs Identified by Mass Spectrometry and Next-Generation Sequencing.

    Portilho, Fábio V R / Nóbrega, Juliano / de Almeida, Beatriz O / Mota, André R / de Paula, Carolina L / Listoni, Fernando J P / Bosco, Sandra M G / Oliveira, Alana L / Cunha, Maria de Lourdes R S / Ribeiro, Márcio G

    Animals : an open access journal from MDPI

    2023  Volume 13, Issue 15

    Abstract: The high complexity of the oral microbiota of healthy dogs and the close exposure of humans to companion animals represent a risk of the transmission of potential zoonotic microorganisms to humans, especially through dog bites, including multidrug- ... ...

    Abstract The high complexity of the oral microbiota of healthy dogs and the close exposure of humans to companion animals represent a risk of the transmission of potential zoonotic microorganisms to humans, especially through dog bites, including multidrug-resistant ones. Nonetheless, a limited number of comprehensive studies have focused on the diversity of the microorganisms that inhabit the oral cavities of healthy dogs, particularly based on modern molecular techniques. We investigated bacterial and fungal organisms in the oral cavities of 100 healthy dogs based on a combination of conventional and selective microbiological culture, mass spectrometry (MALDI-TOF MS), and next-generation sequencing. In addition, in vitro antimicrobial susceptibility patterns of isolates and
    Language English
    Publishing date 2023-07-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani13152467
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Microbial Complexity of Oral Cavity of Healthy Dogs Identified by Mass Spectrometry and Next-Generation Sequencing

    Portilho, Fábio V. R. / Nóbrega, Juliano / de Almeida, Beatriz O. / Mota, André R. / de Paula, Carolina L. / Listoni, Fernando J. P. / Bosco, Sandra M. G. / Oliveira, Alana L. / Cunha, Maria de Lourdes R. S. / Ribeiro, Márcio G.

    Animals. 2023 July 31, v. 13, no. 15

    2023  

    Abstract: The high complexity of the oral microbiota of healthy dogs and the close exposure of humans to companion animals represent a risk of the transmission of potential zoonotic microorganisms to humans, especially through dog bites, including multidrug- ... ...

    Abstract The high complexity of the oral microbiota of healthy dogs and the close exposure of humans to companion animals represent a risk of the transmission of potential zoonotic microorganisms to humans, especially through dog bites, including multidrug-resistant ones. Nonetheless, a limited number of comprehensive studies have focused on the diversity of the microorganisms that inhabit the oral cavities of healthy dogs, particularly based on modern molecular techniques. We investigated bacterial and fungal organisms in the oral cavities of 100 healthy dogs based on a combination of conventional and selective microbiological culture, mass spectrometry (MALDI-TOF MS), and next-generation sequencing. In addition, in vitro antimicrobial susceptibility patterns of isolates and mecA resistance gene were assessed. A total of 213 bacteria and 20 fungi were isolated. Staphylococcus pseudintermedius (40/100 = 40%), α-hemolytic Streptococcus (37/100 = 37%), and Pasteurella stomatis (22/100 = 22%) were the most prevalent bacteria diagnosed by microbiological culture and MALDI-TOF MS, whereas Aspergillus (10/100 = 10%) was the most common fungi identified. Based on next-generation sequencing of selected 20 sampled dogs, Porphyromonas (32.5%), Moraxella (16.3%), Fusobacterium (12.8%), Conchiformibius (9.5%), Bergeyella (5%), Campylobacter (3.8%), and Capnocytophaga (3.4%) genera were prevalent. A high multidrug resistance rate was observed in Staphylococcus pseudintermedius isolates, particularly to azithromycin (19/19 = 100%), penicillin (15/19 = 78.9%), and sulfamethoxazole/trimethoprim (15/19 = 78.9%). In addition, the mecA resistance gene was detected in 6.1% (3/49) of coagulase-positive staphylococci. Here, we highlight the microbial complexity of the oral mucosa of healthy dogs, including potential zoonotic microorganisms and multidrug-resistant bacteria, contributing with the investigation of the microbiota and antimicrobial resistance patterns of the microorganisms that inhabit the oral cavity of healthy dogs.
    Keywords Aspergillus ; Bergeyella ; Campylobacter ; Capnocytophaga ; Fusobacterium ; Moraxella ; Pasteurella stomatis ; Porphyromonas ; Staphylococcus pseudintermedius ; Streptococcus ; antibiotic resistance ; azithromycin ; dogs ; fungi ; mass spectrometry ; mouth ; mucosa ; multiple drug resistance ; penicillins ; resistance genes ; risk ; sulfamethoxazole ; trimethoprim
    Language English
    Dates of publication 2023-0731
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani13152467
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Rhodococcus equi pVAPN type causing pneumonia in a dog coinfected with canine morbillivirus (distemper virus) and Toxoplasma gondii.

    Portilho, Fábio V R / Paes, Antonio C / Megid, Jane / Hataka, Alessandre / Neto, Rafael Torres / Headley, Selwyn A / Oliveira, Thalita E S / Colhado, Bruna S / de Paula, Carolina L / Guerra, Simony T / Mota, André R / Listoni, Fernando J P / Takai, Shinji / Ribeiro, Márcio G

    Microbial pathogenesis

    2019  Volume 129, Page(s) 112–117

    Abstract: Canine morbillivirus (previously, canine distemper virus, CDV) is a highly contagious infectious disease-causing agent that produces immunosuppressive infections and multiple clinical signs. Canine toxoplasmosis is an opportunistic disease characterized ... ...

    Abstract Canine morbillivirus (previously, canine distemper virus, CDV) is a highly contagious infectious disease-causing agent that produces immunosuppressive infections and multiple clinical signs. Canine toxoplasmosis is an opportunistic disease characterized by enteric, pulmonary, and neuromuscular signs that might be confused with CDV-induced infections. Rhodococcus equi is a Gram-positive intracellular facultative bacterium that is also opportunistic in nature, and causes pyogranulomatous infections in humans and multiple host animals, although canine rhodococcosis is rare or unrecognized. The pathogenicity of R. equi is intimately related to the presence of plasmid-encoded virulence-associated proteins (Vap). Three host-adapted virulence plasmid types of R. equi have been recognized: the circular pVAPA and pVAPB are associated with equine and porcine strains, respectively, and the recently detected linear pVAPN virulence plasmid is related to bovine isolates. Nevertheless, data regarding the detection of host-adapted virulence plasmid types of R. equi isolated from companion animals are scarce. This report describes a case of an uncommon coinfection due to R. equi, T. gondii and CDV, which was diagnosed in a pet dog with respiratory distress. In this case, CDV most likely induced immunosuppression, which facilitated opportunistic infections by R. equi and T. gondii. The analysis of the virulence profile of R. equi revealed the novel pVAPN plasmid type, initially related to bovine strains. This is the second report of the bovine-associated pVAPN type in a pet dog, with an unusual coinfection with T. gondii and CDV. These findings represent a public health concern due to the close contact between pet animals and their owners, particularly because the pVAPN plasmid type was recently detected in people with HIV/AIDS from the same geographical region.
    MeSH term(s) Actinomycetales Infections/diagnosis ; Actinomycetales Infections/pathology ; Actinomycetales Infections/veterinary ; Animals ; Coinfection/diagnosis ; Coinfection/pathology ; Coinfection/veterinary ; Distemper/complications ; Distemper Virus, Canine/isolation & purification ; Dog Diseases/diagnosis ; Dog Diseases/pathology ; Dogs ; Male ; Plasmids/analysis ; Pneumonia, Bacterial/diagnosis ; Pneumonia, Bacterial/pathology ; Pneumonia, Bacterial/veterinary ; Rhodococcus equi/genetics ; Rhodococcus equi/isolation & purification ; Rhodococcus equi/pathogenicity ; Toxoplasma/isolation & purification ; Toxoplasmosis, Animal/complications ; Virulence Factors/genetics
    Chemical Substances Virulence Factors
    Language English
    Publishing date 2019-02-06
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 632772-2
    ISSN 1096-1208 ; 0882-4010
    ISSN (online) 1096-1208
    ISSN 0882-4010
    DOI 10.1016/j.micpath.2019.01.048
    Database MEDical Literature Analysis and Retrieval System OnLINE

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