IL-17, A Possible Salivary Biomarker for Preterm Birth in Females with Periodontitis

J Obstet Gynaecol India. 2021 Jun;71(3):262-267. doi: 10.1007/s13224-021-01466-1. Epub 2021 Feb 25.

Abstract

Background: Previous studies have suggested that chronic periodontal infection may be associate with preterm births and low birth weight. The present study was conducted to evaluate the levels of interleukin-17 (IL-17) in saliva samples of pregnant females as a possible marker in determining whether or not an association exists between chronic periodontitis and preterm labor.

Aim: The aim of the study is to assess the relation between the periodontal health status and preterm low birth weight of the new born on the basis of salivary IL-17 levels.

Materials and methods: This case-control study included a random sample of 40 female patients, aged 18 to 35 years, who were in their second trimester, assigned to two groups, Group 1 consisted of 20 pregnant females without periodontitis, Group 2 included 20 pregnant females with periodontitis. Saliva samples were obtained in the second trimester and postpartum. Saliva samples were measured by using ELISA for IL-17 levels.

Results: IL-17 levels in saliva were significantly higher in Group 2 than that of Group 1(p < 0.001). There was no significant difference found between the preterm and low birth weight cases and periodontitis.

Conclusion: This study did not find any association between the periodontitis and preterm deliveries and low birth weight cases on the basis of IL-17 levels in saliva.

Keywords: Interleukin-17; Periodontitis; Preterm low birth weight; Salivary biomarker.