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In Situ Detection of Bacteria within Paraffin-embedded Tissues Using a Digoxin-labeled DNA Probe Targeting 16S rRNA

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Periodontopathic bacteria in English HIV-seropositive persons.

C Scully¹, S R Porter, S Mutlu

¹Department of Oral Medicine, Eastman Dental Institute, University of London, England. CScully@eastman.ucl.ac.uk

AIDS Patient Care and Stds

|June 8, 2000

Summary

HIV infection is linked to higher levels of certain periodontopathic bacteria, including Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis, potentially impacting periodontal health. Further research is needed to understand this association.

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Area of Science:

Oral microbiology
Infectious diseases
Immunology

Background:

Periodontal disease is common in HIV-infected individuals.
Specific bacterial profiles may be associated with periodontal status in HIV patients.

Purpose of the Study:

To compare the prevalence and levels of periodontopathic bacteria in HIV-infected patients and non-infected controls.
To investigate the role of specific bacteria in periodontal disease among HIV-infected individuals.

Main Methods:

Used highly specific DNA probes to detect selected periodontopathic bacteria.
Analyzed samples from 20 HIV-infected patients and 8 non-infected controls with similar periodontal status.

Main Results:

Actinobacillus actinomycetemcomitans, Porphyromonas gingivalis, Campylobacter rectus, Prevotella intermedia, and Fusobacterium nucleatum were more frequent and abundant in HIV-infected individuals.
Treponema denticola levels were significantly increased, while Eikenella corrodens levels were decreased in non-bleeding sites of HIV-infected patients.

Conclusions:

Results suggest a periodontopathogenic role for A. actinomycetemcomitans, P. gingivalis, and C. rectus in HIV-infected patients.
Findings align with previous US-based data, highlighting the need for longitudinal studies on microflora, immune competence, and periodontal health in HIV.