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Lee JH, Kim JM, Choi MJ, Kang YE, Joung KH, Yi HS, Kim KS, Ku BJ, Koo BS, Shong M, Kim HJ. Clinical Implications of UCP1 mRNA Expression in Human Cervical Adipose Tissue Under Physiological Conditions. Obesity (Silver Spring) 2018; 26:1008-1016. [PMID: 29698580 DOI: 10.1002/oby.22188] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 12/16/2022]
Abstract
OBJECTIVE The clinical implications of human brown adipose tissue (BAT) were investigated based on the analysis of cervical adipose tissue gene expression under normal physiological conditions. METHODS Matched-pair specimens of adipose tissue (AT) were collected from beneath the incision plane (subcutaneous AT) and from the area surrounding the carotid sheath (carotid AT) from 60 patients undergoing thyroidectomy. The mRNA expression of BAT-associated genes in these tissues was examined, and this expression was correlated with the clinical characteristics of the subjects. RESULTS The UCP1 mRNA level was significantly higher in the carotid AT than in the subcutaneous AT. There was an inverse correlation between subject age and the ratio of UCP1 mRNA expression in the carotid AT relative to the subcutaneous AT, which is a measure of BAT activity (r = -0.459; P = 0.004), and there was a negative correlation between BMI and the ratio of UCP1 mRNA expression in subjects with higher BAT activity (r = -0.532; P = 0.016). CONCLUSIONS UCP1 was identified as the only marker of cervical BAT in humans. There was a negative correlation between obesity and BAT activity in subjects with higher BAT activity, although BAT activity decreased with age.
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Affiliation(s)
- Ju Hee Lee
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Ji Min Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Min Jeong Choi
- Department of Medicine Science, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Yea Eun Kang
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Kyoung Hye Joung
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Hyon-Seung Yi
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Koon Soon Kim
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Bon Jeong Ku
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Bon Seok Koo
- Department of Otorhinolaryngology-Head and Neck Surgery, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Minho Shong
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Hyun Jin Kim
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
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Abstract
The main objective of this study was to identify the risk factors and develop a decision tree model of heavy episodic drinking (HED) among adolescents. Data were obtained from a representative nationwide Korean population. Nine variables (such as last 30 days smoking, school grade, sex, depression, school achievement, level of stress, region, and economic status) were found as risk factors of HED. On the highest level of the tree root, major classification rule was played by dividing based on the last 30 days smoking and school grades. These findings should be helpful for school and mental healthcare providers to detect Korean adolescents with high possibility of HED, which will aid in planning of healthcare interventions for at-risk adolescents.
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Affiliation(s)
- S S Chung
- Department of Statistics and Institute of Applied Statistics, Chonbuk National University, Jeonju, Korea
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