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The Highly Leukotoxic JP2 Genotype of Aggregatibacter actinomycetemcomitans Is Present in the Population of the West African Island, Sal in Cape Verde: A Pilot Study
Department of Preventive Dentistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.ORCID iD: 0000-0002-9964-0205
Umeå University, Faculty of Medicine, Department of Odontology. (Aa-gruppen)
Section for Paediatric Dentistry, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.ORCID iD: 0000-0001-9983-8767
Umeå University, Faculty of Medicine, Department of Odontology. (Aa-gruppen)ORCID iD: 0000-0002-8069-8263
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2022 (English)In: Pathogens, E-ISSN 2076-0817, Vol. 11, no 5, article id 577Article in journal (Refereed) Published
Abstract [en]

Aggregatibacter actinomycetemcomitans is strongly associated with severe periodontitis, possibly due to its production of a potent leukotoxin. A genetic variant, the JP2 genotype, was found to produce more leukotoxin than the wild type because of a mutation in the leukotoxin gene, and this genotype is frequently found in African populations. The aim of this study was to investigate whether this JP2 genotype can be found in a randomly selected group of inhabitants of Sal, Cape Verde. Twenty-nine adults between 20 and 59 years of age (58.6% female) participated, and information on their oral health and living standards was collected. An oral examination was performed for each participant, including DMF-T and CPI scores. Plaque and saliva samples were collected and transported to Europe, where DNA was isolated, and the concentration of A. actinomycetemcomitans and its JP2 genotype was determined using dedicated PCR analyses. All 29 plaque and 31% of the saliva samples harboured A. actinomycetemcomitans, and two participants were positive for the JP2 genotype. The presence of this JP2 genotype was not associated with either CPI or DMF-T. This pilot study is the first to describe the presence of the A. actinomycetemcomitans JP2 genotype in a Cape Verdean population living in the Cape Verde Islands, and the findings warrant further research.

Place, publisher, year, edition, pages
Basel: MDPI, 2022. Vol. 11, no 5, article id 577
Keywords [en]
JP2 genotype, leukotoxin, Aggregatibacter actinomycetemcomitans, Cape Verde, geographic dissemination
National Category
Dentistry
Research subject
Infectious Diseases
Identifiers
URN: urn:nbn:se:umu:diva-194701DOI: 10.3390/pathogens11050577ISI: 000801401700001Scopus ID: 2-s2.0-85130749676OAI: oai:DiVA.org:umu-194701DiVA, id: diva2:1658111
Available from: 2022-05-13 Created: 2022-05-13 Last updated: 2023-09-05Bibliographically approved

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Claesson, RolfJohansson, Anders

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