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Characterization of bacterial communities in venous insufficiency wounds by use of conventional culture and molecular diagnostic methods
Journal article   Open access   Peer reviewed

Characterization of bacterial communities in venous insufficiency wounds by use of conventional culture and molecular diagnostic methods

Marie S Tuttle, Eliot Mostow, Pranab Mukherjee, Fen Z Hu, Rachael Melton-Kreft, Garth D Ehrlich, Scot E Dowd and Mahmoud A Ghannoum
Journal of clinical microbiology, v 49(11), pp 3812-3819
Nov 2011
PMID: 21880958
url
https://doi.org/10.1128/JCM.00847-11View
Published, Version of Record (VoR) Open

Abstract

Humans Middle Aged Male Biodiversity Bacteria - genetics Bacteria - growth & development Bacteria - isolation & purification Coinfection - microbiology Molecular Diagnostic Techniques Leg - blood supply Venous Insufficiency - complications Wound Infection - microbiology Aged, 80 and over Bacteria - classification Adult Bacteriological Techniques Female Aged Wound Healing - physiology Bacterial Infections - microbiology Leg - microbiology
Microbial infections delay wound healing, but the effect of the composition of the wound microbiome on healing parameters is unknown. To better understand bacterial communities in chronic wounds, we analyzed debridement samples from lower-extremity venous insufficiency ulcers using the following: conventional anaerobic and aerobic bacterial cultures; the Ibis T5000 universal biosensor (Abbott Molecular); and 16S 454 FLX titanium series pyrosequencing (Roche). Wound debridement samples were obtained from 10 patients monitored clinically for at least 6 months, at which point 5 of the 10 sampled wounds had healed. Pyrosequencing data revealed significantly higher bacterial abundance and diversity in wounds that had not healed at 6 months. Additionally, Actinomycetales was increased in wounds that had not healed, and Pseudomonadaceae was increased in wounds that had healed by the 6-month follow-up. Baseline wound surface area, duration, or analysis by Ibis or conventional culture did not reveal significant differences between wounds that healed after 6 months and those that did not. Thus, pyrosequencing identified distinctive baseline characteristics of wounds that did not heal by the 6-month follow-up, furthering our understanding of potentially unique microbiome characteristics of chronic wounds.

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Collaboration types
Domestic collaboration
Web of Science research areas
Microbiology
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