Relation between pH in the Trunk and Face: Truncal pH Can Be Easily Predicted from Facial pH

Authors
Sung Ae KimBo Ri KimMi Young ChunSang Woong Youn
Department
Dept. of Dermatology (피부과학)
Issue Date
2016
Citation
Annals of Dermatology, Vol.28(2) : 216-221, 2016
ISSN
1013-9087
Abstract
Background: The clinical symptoms of facial and truncal acne differ. Skin surface acidity (pH), which is affected by sebum secretions, reflects the different clinical characteristics of the face and trunk. However, no studies have been conducted on truncal sebum production and skin pH. Objective: We evaluated the differences and relationship between pH values of the face and trunk. We also evaluated the relationship between pH and the quantity of sebum produced in the trunk. Methods: A total of 35 female patients clinically diagnosed with truncal acne were included. We measured pH on the face and truncal area using the Skin-pH-Meter PH 905Ⓡ. We measured truncal sebum secretions using the Sebumeter SM 815Ⓡ. Statistical analysis was performed to evaluate the correlations and differences between pH and sebum. Results: Facial pH was significantly higher than chest and back pH values. The correlation between pH on the trunk and the face was significant. We used linear regression equations to estimate truncal pH using only measured pH from the chin. There was no significant relationship between truncal sebum secretion and pH. Conclusion: This was the first study that evaluated the differences and correlations between facial and truncal pH. We found that facial pH can predict truncal pH. In addition, we conclude that differences in pH and sebum secretion between the face and trunk are one of the reasons for differences in acne symptom at those sites.
Keywords
FacepHSebumSkin-pH-MeterⓇTrunk
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/33277
Appears in Collections:
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Dermatology (피부과학)
Keimyung Author(s)
김성애
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