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Salivary levels of IL-1β, IL-6, IL-8, and TNF-α in Patients with Burning Mouth Syndrome : 구강작열감증후군 환자에서 타액내 IL-1β, IL-6, IL-8, TNF-α 농도

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Authors

서경임

Advisor
고홍섭
Major
치의학과
Issue Date
2012-02
Publisher
서울대학교 대학원
Abstract
Burning mouth syndrome (BMS) is characterized by a burning sensation or other dysesthesias of the oral mucosa, without accompanying abnormal clinical or laboratory findings. Although the etiology is still unknown, cytokines may be implicated in the pathogenesis of BMS. It has been suggested that inflammation at a level not clinically apparent may lead to burning symptoms that could then result in altered cytokine profiles. A number of studies have investigated salivary cytokines in BMS, but their results are controversial. Such contradictory data and the limited number of published studies on salivary cytokines in BMS patients indicate that further investigations are required.
The purpose of this study was to investigate salivary IL-1β, IL-6, IL-8, and TNF-α levels between patients with BMS and controls and to analyze the relationships between salivary cytokine levels, salivary flow rate, total protein concentration, gingival index, and blood contamination levels of saliva samples. Forty female patients with BMS (mean age: 61.6 ± 10.1 years) and 20 female control subjects (mean age: 65.1 ± 9.0 years) were included in the study. Unstimulated (UWS) and stimulated whole saliva (SWS) samples were collected and their flow rates were determined. Salivary IL-1β, IL-6, IL-8, and TNF-α levels and total protein concentration were also determined. Salivary transferrin level was determined to investigate the level of blood contamination in saliva samples. Gingival index of the subjects was also examined. Students t-test, Pearsons correlation analysis, and analysis of covariance were used.

The obtained results were as follows:

1. Salivary flow rates and their total protein concentrations did not differ significantly between the BMS patients and controls.
2. No significant differences were found in the salivary levels of IL-1β, IL-6, IL-8, and TNF-α in BMS patients compared with controls.
3. The levels of salivary cytokines and total protein concentration showed significantly positive correlations with the level of blood contamination in both UWS and SWS.
4. The salivary flow rate, total protein concentration, and levels of blood contamination and salivary cytokines in UWS showed significantly positive correlations with those in SWS, respectively.

Collectively, there were no differences in the salivary levels of IL-1β, IL-6, IL-8, and TNF-α in BMS patients compared with controls. Cytokine levels in whole saliva were affected mainly by the amount of blood contamination.
구강작열감증후군은 임상검사시 구강점막에 이상 소견을 보이지 않으면서구강점막의 작열감 또는 이상감각을 나타내는 질환이다. 병인은 여전히 불분명하지만 국소적, 전신적, 혹은 심리적 원인과 신경병변성 기전이 제시된 바 있고, 임상적으로 뚜렷하지 않은 염증이 작열감을 유발하여 cytokine 농도에 변화를 일으킬 가능성이 제시된 바 있다. 구강작열감증후군 환자에서의 타액내 cytokine에 대해 몇몇 연구가 시행되었으나, 그 수가 적고 상반된 결과를 보이므로 추가적인 연구가 필요하다.
본 연구는 구강작열감증후군 환자와 대조군 간의 타액내 IL-1β, IL-6, IL-8, TNF-α의 농도를 조사하고, 타액 검체에서 타액내 cytokine 농도, 타액 분비율, 총 단백질 농도, 치은지수, 혈액 오염도 간의 관련성을 분석하기 위하여 시행되었다. 여성으로 구성된 구강작열감증후군 환자 40명(평균 연령: 61.6 ± 10.1세)과 대조군 20명(평균 연령: 65.1 ± 9.0세)을 대상으로 비자극성 전타액과 자극성 전타액을 수집하여 타액분비율을 측정하였고, 타액내 IL-1β, IL-6, IL-8, TNF-α의 농도와 총 단백질 농도를 측정하였다. 또한, 타액 검체에서의 혈액 오염도를 조사하기 위해 타액내 transferrin 농도를 측정하였으며, 치은지수도 검사하여 다음과 같은 결과를 얻었다.

1. 타액분비율과 총 단백질 농도는 구강작열감증후군 환자와 대조군 간에 유의한 차이를 보이지 않았다.
2. 구강작열감증후군 환자에서의 타액내 IL-1β, IL-6, IL-8, TNF-α 농도는 대조군과 비교시 유의한 차이를 보이지 않았다.
3. 비자극성 및 자극성 전타액 모두에서 타액내 cytokine 농도와 총 단백질 농도는 혈액 오염도와 유의한 양의 상관관계를 보였다.
4. 비자극성 전타액과 자극성 전타액 간의 타액분비율, 총 단백질 농도, 혈액 오염도, 타액내 cytokine 농도는 서로 유의한 양의 상관관계를 보였다.

결론적으로, 구강작열감증후군 환자에서의 타액내 IL-1β, IL-6, IL-8, TNF-α 농도는 대조군과 비교시 차이를 보이지 않았으며, 전타액에서의 cytokine 농도는 주로 혈액 오염도에 영향을 받았다.
Language
eng
URI
https://hdl.handle.net/10371/156698

http://dcollection.snu.ac.kr:80/jsp/common/DcLoOrgPer.jsp?sItemId=000000000372
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