PMID- 29675336 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20191120 IS - 2162-1918 (Print) IS - 2162-1934 (Electronic) IS - 2162-1918 (Linking) VI - 7 IP - 4 DP - 2018 Apr 1 TI - Bacterial Aggregates Establish at the Edges of Acute Epidermal Wounds. PG - 105-113 LID - 10.1089/wound.2017.0770 [doi] AB - Objective: The bacterial composition and distribution were evaluated in acute standardized epidermal wounds and uninjured skin by a molecular in situ technology benchmarked to conventional culturing. This was done to reveal whether bacterial biofilm is present in acute wounds. Approach: On the buttock of 26 healthy volunteers, 28 suction blisters were made and de-roofed. Four wounds were biopsied immediately after wounding, whereas the remaining 24 wounds were treated daily with sterile deionized water and covered with a moisture-retaining dressing. On day 4 post-wounding, swabs were obtained for culturing from the wounds and adjacent skin, and the wounds including adjacent skin were excised. Tissue sections were stained with peptide nucleic acid (PNA) fluorescence in situ hybridization (FISH) probes, counterstained by 4',6-diamidino-2-phenylindole, and evaluated by confocal laser scanning microscopy (CLSM). Results: No bacterial aggregates were detected at day 0. At day 4, coagulase-negative staphylococci (CoNS) were the sole bacteria identified by CLSM/PNA-FISH and culturing. CoNS was isolated from 78% of the wound swabs and 48% of the skin swabs. Bacterial aggregates (5-150 mum) were detected by PNA-FISH/CLSM in the split stratum corneum and fibrin deposits at the wound edges and in the stratum corneum and the hair follicles of the adjacent skin. The bacterial aggregates were more common (p = 0.0084) and larger (p = 0.0083) at wound edges than in the adjacent skin. Innovation: Bacterial aggregates can establish in all wound types and may have clinical significance in acute wounds. Conclusion: Bacterial aggregates were observed at the edges of acute epidermal wounds, indicating initiated establishment of a biofilm. FAU - Bay, Lene AU - Bay L AD - Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark. FAU - Kragh, Kasper N AU - Kragh KN AD - Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark. FAU - Eickhardt, Steffen R AU - Eickhardt SR AD - Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark. FAU - Poulsen, Steen S AU - Poulsen SS AD - Endocrinology, Department of Biomedical Science, University of Copenhagen, Copenhagen, Denmark. FAU - Gjerdrum, Lise Mette R AU - Gjerdrum LMR AD - Department of Pathology, Zealand University Hospital, Roskilde, Denmark. FAU - Ghathian, Khaled AU - Ghathian K AD - Department of Clinical Microbiology, Hvidovre Hospital, Hvidovre, Denmark. FAU - Calum, Henrik AU - Calum H AD - Department of Clinical Microbiology, Hvidovre Hospital, Hvidovre, Denmark. FAU - Agren, Magnus S AU - Agren MS AD - Copenhagen Wound Healing Center and Digestive Disease Center, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark. FAU - Bjarnsholt, Thomas AU - Bjarnsholt T AD - Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark. AD - Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark. LA - eng PT - Journal Article PL - United States TA - Adv Wound Care (New Rochelle) JT - Advances in wound care JID - 101590593 PMC - PMC5905854 OTO - NOTNLM OT - PNA-FISH OT - acute wounds OT - bacterial aggregates OT - biofilm OT - confocal microscopy OT - standardized epidermal wounds EDAT- 2018/04/21 06:00 MHDA- 2018/04/21 06:01 PMCR- 2018/04/01 CRDT- 2018/04/21 06:00 PHST- 2017/10/23 00:00 [received] PHST- 2017/12/09 00:00 [accepted] PHST- 2018/04/21 06:00 [entrez] PHST- 2018/04/21 06:00 [pubmed] PHST- 2018/04/21 06:01 [medline] PHST- 2018/04/01 00:00 [pmc-release] AID - 10.1089/wound.2017.0770 [pii] AID - 10.1089/wound.2017.0770 [doi] PST - ppublish SO - Adv Wound Care (New Rochelle). 2018 Apr 1;7(4):105-113. doi: 10.1089/wound.2017.0770.