PMID- 32209872 OWN - NLM STAT- MEDLINE DCOM- 20210324 LR - 20210324 IS - 2162-5220 (Electronic) IS - 1710-3568 (Linking) VI - 31 IP - 3 DP - 2020 May/Jun TI - Nasal Colonization by Staphylococci and Severity of Atopic Dermatitis. PG - 215-222 LID - 10.1097/DER.0000000000000568 [doi] AB - BACKGROUND: Skin colonization by Staphylococcus aureus (SA) correlates with increased severity of atopic dermatitis (AD). The role of nasal SA carriage and coagulase-negative staphylococci (CNSs) in AD is unclear. OBJECTIVE: The aim of this study was to assess the influence of colonization of lesional/nonlesional skin and the anterior nares by SA and CNSs on AD severity in 63 adult patients. METHODS: Disease severity was assessed with SCORAD index. The total immunoglobulin E (IgE) concentration was determined using the enzyme-linked immunosorbent assay method. The prevalence and abundance of staphylococci were assessed with the combination of bacterial culture and mass spectrometry. RESULTS: The prevalence values of SA within the skin (lesional/nonlesional) and anterior nares were 79.4%/61.9% and 69.8%, respectively (vs 5.6% and 13.9%, respectively in controls, P < 0.0001). The carriage of CNSs in all niches was associated with lower mean IgE concentration (1164.66 +/- 1010.36 vs 1762.99 +/- 1059.15, P < 0.0213; 1166.9 +/- 1006.4 vs 2152.7 +/- 759.2, P < 0.0063; 1022 +/- 1100 vs 1925 +/- 880.8, P < 0.0044, respectively). The abundance of SA correlated with the extent of skin lesions and total IgE (rho = 0.42, P = 0.0007; rho = 0.488, P < 0.0001; rho = 0.312, P < 0.2; and rho = 0.402, P = 0.0007; rho = 0.403, P < 0.002; rho = 0.287, P < 0.03, respectively). CONCLUSIONS: Atopic dermatitis severity correlates with both cutaneous and nasal colonization by SA. Staphylococcus aureus seems to promote TH2-type response, whereas CNS probably limits this process. Preventive measures within the anterior nares should be considered for AD patients. FAU - Blicharz, Leszek AU - Blicharz L AD - From the Departments of Dermatology. FAU - Usarek, Paulina AU - Usarek P AD - Medical Microbiology, Medical University of Warsaw. FAU - Mlynarczyk, Grazyna AU - Mlynarczyk G AD - Medical Microbiology, Medical University of Warsaw. FAU - Skowronski, Krzysztof AU - Skowronski K AD - Applied Analytics Group, iQor, Warsaw, Poland. FAU - Rudnicka, Lidia AU - Rudnicka L AD - From the Departments of Dermatology. FAU - Samochocki, Zbigniew AU - Samochocki Z AD - From the Departments of Dermatology. LA - eng PT - Journal Article PL - United States TA - Dermatitis JT - Dermatitis : contact, atopic, occupational, drug JID - 101207335 RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Adolescent MH - Adult MH - Aged MH - *Asymptomatic Infections MH - *Bacterial Load MH - Dermatitis, Atopic/immunology/*physiopathology MH - Female MH - Humans MH - Immunoglobulin E/immunology MH - Male MH - Middle Aged MH - Nasal Mucosa/*microbiology MH - Poland MH - Severity of Illness Index MH - Staphylococcus/immunology/isolation & purification MH - Staphylococcus aureus/immunology/*isolation & purification MH - Young Adult EDAT- 2020/03/27 06:00 MHDA- 2021/03/25 06:00 CRDT- 2020/03/27 06:00 PHST- 2020/03/27 06:00 [pubmed] PHST- 2021/03/25 06:00 [medline] PHST- 2020/03/27 06:00 [entrez] AID - 10.1097/DER.0000000000000568 [doi] PST - ppublish SO - Dermatitis. 2020 May/Jun;31(3):215-222. doi: 10.1097/DER.0000000000000568.