PMID- 23656553 OWN - NLM STAT- MEDLINE DCOM- 20140225 LR - 20131230 IS - 1600-0463 (Electronic) IS - 0903-4641 (Linking) VI - 122 IP - 1 DP - 2014 Jan TI - Microbiology of folliculitis: a histological study of 39 cases. PG - 25-32 LID - 10.1111/apm.12103 [doi] AB - Folliculitis is a common inflammatory skin syndrome. Several microbial organisms have been put forward as causative agents, but few studies visualized microbes directly in inflamed hair follicles. This retrospective study investigated bacterial and fungal colonization of inflamed hair follicles in patients with clinically diagnosed non-infectious folliculitis. Skin biopsies from 39 folliculitis patients and 27 controls were screened by fluorescence in situ hybridization (FISH) using broad-range bacterial and fungal probes and by immunofluorescence microscopy using a monoclonal antibody towards Gram-positive bacteria. Specific monoclonal and polyclonal antibodies towards Staphylococcus spp. and Propionibacterium acnes were applied for further species identification. Inflamed follicles were associated with bacterial colonization in 10 samples (26%) and fungal colonization in three samples (8%). Staphylococcus spp. were observed in inflamed follicles in seven samples (18%). Two samples were positive for P. acnes, which were identified as either type II or type IB/type III. Both Staphylococcus spp. and P. acnes were seen in macrocolonies/biofilm structures. In conclusion, one-third of patients with clinically diagnosed, non-infectious folliculitis exhibited microbial colonization with predominance of Staphylococcus spp. CI - (c) 2013 APMIS Published by Blackwell Publishing Ltd. FAU - Jahns, Anika C AU - Jahns AC AD - Medical Biosciences/Pathology, Umea University, Umea, Sweden. FAU - Lundskog, Bertil AU - Lundskog B FAU - Berg, Johanna AU - Berg J FAU - Jonsson, Rebecca AU - Jonsson R FAU - McDowell, Andrew AU - McDowell A FAU - Patrick, Sheila AU - Patrick S FAU - Golovleva, Irina AU - Golovleva I FAU - Palmer, Ruth H AU - Palmer RH FAU - Alexeyev, Oleg A AU - Alexeyev OA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130508 PL - Denmark TA - APMIS JT - APMIS : acta pathologica, microbiologica, et immunologica Scandinavica JID - 8803400 SB - IM MH - Adolescent MH - Adult MH - Case-Control Studies MH - Child MH - Female MH - Folliculitis/*microbiology/pathology MH - Fungi/genetics/isolation & purification MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Microscopy, Fluorescence MH - Propionibacterium acnes/isolation & purification MH - Retrospective Studies MH - Staphylococcus/isolation & purification MH - Young Adult OTO - NOTNLM OT - Propionibacterium acnes OT - Skin OT - Staphylococcus. OT - folliculitis OT - in situ hybridization OT - microbiota EDAT- 2013/05/10 06:00 MHDA- 2014/02/26 06:00 CRDT- 2013/05/10 06:00 PHST- 2012/11/08 00:00 [received] PHST- 2013/03/05 00:00 [accepted] PHST- 2013/05/10 06:00 [entrez] PHST- 2013/05/10 06:00 [pubmed] PHST- 2014/02/26 06:00 [medline] AID - 10.1111/apm.12103 [doi] PST - ppublish SO - APMIS. 2014 Jan;122(1):25-32. doi: 10.1111/apm.12103. Epub 2013 May 8.