Immune status, and not HIV infection or exposure, drives the development of the oral microbiota

Even with antiretroviral therapy, children born to HIV-infected (HI) mothers are at a higher risk of early-life infections and morbidities including dental disease. The increased risk of dental caries in HI children suggest immune-mediated changes in oral bacterial communities, however, the impact o...

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Veröffentlicht in:Scientific reports 2020-07, Vol.10 (1), p.10830-10830, Article 10830
Hauptverfasser: Coker, M. O., Mongodin, E. F., El-Kamary, S. S., Akhigbe, P., Obuekwe, O., Omoigberale, A., Langenberg, P., Enwonwu, C., Hittle, L., Blattner, W. A., Charurat, M.
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container_title Scientific reports
container_volume 10
creator Coker, M. O.
Mongodin, E. F.
El-Kamary, S. S.
Akhigbe, P.
Obuekwe, O.
Omoigberale, A.
Langenberg, P.
Enwonwu, C.
Hittle, L.
Blattner, W. A.
Charurat, M.
description Even with antiretroviral therapy, children born to HIV-infected (HI) mothers are at a higher risk of early-life infections and morbidities including dental disease. The increased risk of dental caries in HI children suggest immune-mediated changes in oral bacterial communities, however, the impact of perinatal HIV exposure on the oral microbiota remains unclear. We hypothesized that the oral microbiota of HI and perinatally HIV-exposed-but-uninfected (HEU) children will significantly differ from HIV-unexposed-and-uninfected (HUU) children. Saliva samples from 286 child-participants in Nigeria, aged ≤ 6 years, were analyzed using 16S rRNA gene sequencing. Perinatal HIV infection was significantly associated with community composition (HI vs. HUU—p = 0.04; HEU vs. HUU—p = 0.11) however, immune status had stronger impacts on bacterial profiles (p 
doi_str_mv 10.1038/s41598-020-67487-4
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O. ; Mongodin, E. F. ; El-Kamary, S. S. ; Akhigbe, P. ; Obuekwe, O. ; Omoigberale, A. ; Langenberg, P. ; Enwonwu, C. ; Hittle, L. ; Blattner, W. A. ; Charurat, M.</creator><creatorcontrib>Coker, M. O. ; Mongodin, E. F. ; El-Kamary, S. S. ; Akhigbe, P. ; Obuekwe, O. ; Omoigberale, A. ; Langenberg, P. ; Enwonwu, C. ; Hittle, L. ; Blattner, W. A. ; Charurat, M.</creatorcontrib><description>Even with antiretroviral therapy, children born to HIV-infected (HI) mothers are at a higher risk of early-life infections and morbidities including dental disease. The increased risk of dental caries in HI children suggest immune-mediated changes in oral bacterial communities, however, the impact of perinatal HIV exposure on the oral microbiota remains unclear. We hypothesized that the oral microbiota of HI and perinatally HIV-exposed-but-uninfected (HEU) children will significantly differ from HIV-unexposed-and-uninfected (HUU) children. Saliva samples from 286 child-participants in Nigeria, aged ≤ 6 years, were analyzed using 16S rRNA gene sequencing. Perinatal HIV infection was significantly associated with community composition (HI vs. HUU—p = 0.04; HEU vs. HUU—p = 0.11) however, immune status had stronger impacts on bacterial profiles (p &lt; 0.001). We observed age-stratified associations of perinatal HIV exposure on community composition, with HEU children differing from HUU children in early life but HEU children becoming more similar to HUU children with age. Our findings suggest that, regardless of age, HIV infection or exposure, low CD4 levels persistently alter the oral microbiota during this critical developmental period. 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The increased risk of dental caries in HI children suggest immune-mediated changes in oral bacterial communities, however, the impact of perinatal HIV exposure on the oral microbiota remains unclear. We hypothesized that the oral microbiota of HI and perinatally HIV-exposed-but-uninfected (HEU) children will significantly differ from HIV-unexposed-and-uninfected (HUU) children. Saliva samples from 286 child-participants in Nigeria, aged ≤ 6 years, were analyzed using 16S rRNA gene sequencing. Perinatal HIV infection was significantly associated with community composition (HI vs. HUU—p = 0.04; HEU vs. HUU—p = 0.11) however, immune status had stronger impacts on bacterial profiles (p &lt; 0.001). We observed age-stratified associations of perinatal HIV exposure on community composition, with HEU children differing from HUU children in early life but HEU children becoming more similar to HUU children with age. Our findings suggest that, regardless of age, HIV infection or exposure, low CD4 levels persistently alter the oral microbiota during this critical developmental period. Data also indicates that, while HIV infection clearly shapes the developing infant oral microbiome, the effect of perinatal exposure (without infection) appears transient.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>32616727</pmid><doi>10.1038/s41598-020-67487-4</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record>
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subjects 631/114
631/326
692/308/3187
692/4017
Age
Antiretroviral agents
Antiretroviral therapy
CD4 antigen
CD4-Positive T-Lymphocytes - immunology
Child
Child, Preschool
Children
Community composition
Dental caries
Dental Caries - immunology
Dental Caries - microbiology
Dental disorders
Female
HIV
HIV Infections - immunology
HIV Infections - microbiology
Human immunodeficiency virus
Humanities and Social Sciences
Humans
Immune status
Immunocompromised Host
Infections
Male
Microbiomes
Microbiota
Microorganisms
multidisciplinary
Perinatal exposure
rRNA 16S
Saliva
Saliva - microbiology
Science
Science (multidisciplinary)
title Immune status, and not HIV infection or exposure, drives the development of the oral microbiota
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