Abstract | IMPORTANCE: OBJECTIVE: DESIGN, SETTING, AND PARTICIPANTS: Case-control study nested within the Nurses' Health Study cohort. Among participants without diabetes who provided urine and blood samples at baseline in 2000, we identified 370 women who developed type 2 diabetes from 2000-2012 and matched 370 controls using risk-set sampling. MAIN OUTCOME MEASURES: Associations between melatonin secretion at baseline and incidence of type 2 diabetes were evaluated with multivariable conditional logistic regression controlling for demographic characteristics, lifestyle habits, measures of sleep quality, and biomarkers of inflammation and endothelial dysfunction. RESULTS: The median urinary ratios of 6-sulfatoxymelatonin to creatinine were 28.2 ng/mg (5%-95% range, 5.5-84.2 ng/mg) among cases and 36.3 ng/mg (5%-95% range, 6.9-110.8 ng/mg) among controls. Women with lower ratios of 6-sulfatoxymelatonin to creatinine had increased risk of diabetes (multivariable odds ratio, 1.48 [95% CI, 1.11-1.98] per unit decrease in the estimated log ratio of 6-sulfatoxymelatonin to creatinine). Compared with women in the highest ratio category of 6-sulfatoxymelatonin to creatinine, those in the lowest category had a multivariable odds ratio of 2.17 (95% CI, 1.18-3.98) of developing type 2 diabetes. Women in the highest category of melatonin secretion had an estimated diabetes incidence rate of 4.27 cases/1000 person-years compared with 9.27 cases/1000 person-years in the lowest category. CONCLUSIONS AND RELEVANCE: Lower melatonin secretion was independently associated with a higher risk of developing type 2 diabetes. Further research is warranted to assess if melatonin secretion is a modifiable risk factor for diabetes within the general population.
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Authors | Ciaran J McMullan, Eva S Schernhammer, Eric B Rimm, Frank B Hu, John P Forman |
Journal | JAMA
(JAMA)
Vol. 309
Issue 13
Pg. 1388-96
(Apr 03 2013)
ISSN: 1538-3598 [Electronic] United States |
PMID | 23549584
(Publication Type: Journal Article, Research Support, N.I.H., Extramural)
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Chemical References |
- 6-sulfatoxymelatonin
- Creatinine
- Melatonin
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Topics |
- Aged
- Case-Control Studies
- Cohort Studies
- Creatinine
(urine)
- Diabetes Mellitus, Type 2
(epidemiology)
- Female
- Humans
- Incidence
- Melatonin
(analogs & derivatives, metabolism, urine)
- Middle Aged
- Regression Analysis
- Risk Factors
- United States
(epidemiology)
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