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ISSN: 1642-395X
Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii
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vol. 35
Original paper

A systematic review and meta-analysis study of salivary and serum interleukin-8 levels in oral lichen planus

Hamid Reza Mozaffari, Roohollah Sharifi, Seyedghasem Mirbahari, Sara Montazerian, Masoud Sadeghi, Sedigheh Rostami

Adv Dermatol Allergol 2018; XXXV (6): 599-604
Online publish date: 2018/08/13
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Interleukin-8 (IL-8) is an important mediator of the host response to injury and inflammation that the clinical severity of oral lichen planus (OLP) is associated with elevated serum IL-8 levels.

To evaluate serum and salivary IL-8 levels of the OLP patients compared with the healthy controls and measurement of IL-8 level in which sample is more valuable.

Material and Methods
Five databases including PubMed/Medline, Web of Science, Science Direct, Cochrane Library and Scopus were searched for the evaluation of serum and salivary IL-8 levels of the OLP patients compared with the healthy controls in the English abstract. The Newcastle-Ottawa Quality Assessment Scale (NOS) was used for checking the quality of the studies. A random-effect model was used for calculating the mean difference (MD) and 95% confidence intervals (CIs).

Nine studies were included in the meta-analysis. The pooled estimate showed a significant difference between two groups that the salivary IL-8 level in the OLP patients was higher than the healthy controls (MD = 766.32 pg/ml, 95% CI: 394.90–1137.75; p < 0.0001) and also the serum IL-8 level in the OLP patients was higher than the healthy controls (MD = 8.38 pg/ml, 95% CI: 3.32–13.44; p = 0.001).

The higher levels of IL-8 in saliva compared with serum levels suggest that measurement of this marker in saliva may be more useful than serum measurements for determining therapeutic and diagnostic aims.


oral lichen planus, interleukin-8, saliva, serum

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