PubMed RSS Feed - -Elevated Tear Human Neutrophil Peptides 1-3, Human Beta Defensin-2 Levels and Conjunctival Cathelicidin LL-37 Gene Expression in Ocular Rosacea.

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Elevated Tear Human Neutrophil Peptides 1-3, Human Beta Defensin-2 Levels and Conjunctival Cathelicidin LL-37 Gene Expression in Ocular Rosacea.

Ocul Immunol Inflamm. 2018 Aug 24;:1-10

Authors: Gökçınar NB, Karabulut AA, Onaran Z, Yumuşak E, Budak Yıldıran FA

Abstract
PURPOSE: To investigate the role of innate immunity in ocular rosacea.
METHODS: Thirty-two patients with ocular rosacea patients (group-1) and 28 healthy volunteers (group-2) who served as controls were enrolled in the study. Tear function parameters were assessed, conjunctival impression cytology was performed and tear samples were collected. Human-neutrophil-peptides (HNP) 1-3 and human-beta-defensin-2 (hBD-2) levels were measured in tears by using ELISA tests. Cathelicidin leucin-leucin-37 (LL-37), hBD-2, human-beta-defensin-9 (hBD-9) gene expression levels were measured in the conjunctival impression cytology samples using real-time polymerase chain reaction.
RESULTS: Tear HNP1-3 (p = 0.024), hBD-2 (p < 0.001), conjunctival LL-37 gene expression rate (p = 0.014) and ocular surface disease index scores (p = 0.001) were higher and the tear break-up time was lower (p = 0.003) in group-1. No other differences were found between the groups.
CONCLUSION: The results of this study suggest the role of abnormal innate immunity in the pathophysiology of ocular rosacea by revealing elevated antimicrobial peptide levels.

PMID: 30142005 [PubMed - as supplied by publisher]

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