Ni, W. ; Zhang, S. ; Herder, C.* ; Breitner-Busch, S. ; Wolf, K. ; Liao, M. ; Nikolaou, N. ; Pickford, R. ; Koenig, W.* ; Rathmann, W.* ; Schwettmann, L. ; Roden, M.* ; Thorand, B. ; Peters, A. ; Schneider, A.E.
Associations of long-term exposure to temperature variability with glucose metabolism: Results from KORA F4 and FF4.
Environ. Sci. Technol., 11 (2025)
The impact of rising temperature variability driven by climate change on metabolic health remains understudied, especially considering the global increase in diabetes prevalence, with long-term effects on glucose metabolism unexplored. This study investigated associations between long-term temperature variability exposure and glucose metabolism in a population-based cohort of 2997 participants (4954 observations) over a 7-year period from KORA F4 and FF4 cohorts in Augsburg, Germany. Long-term exposure to temperature variability was estimated as the standard deviation of the daily mean air temperature over the 365-day period preceding each examination. We applied generalized estimating equations to examine the longitudinal associations between long-term exposure to temperature variability and multiple glucose metabolism biomarkers: fasting glucose, 2h glucose, fasting insulin, homeostasis model assessment of insulin resistance (HOMA-IR), homeostasis model assessment of β-cell function (HOMA-B), quantitative insulin sensitivity check index (QUICKI), and glycated hemoglobin (HbA1c). We found that a 1 °C higher temperature variability was significantly associated with higher fasting insulin, HOMA-IR, and HbA1c with % changes (95% CI) of 2.62 (0.79; 4.49), 2.81 (0.79; 4.87), and 2.38 (1.97; 2.79), respectively, and lower QUICKI (-0.41 [-0.70; -0.11]). These findings suggest that increasing temperature variability exposure may contribute to metabolic dysfunction, potentially accelerating the global diabetes epidemic.
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Publication type
Article: Journal article
Document type
Scientific Article
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Keywords
Homa-ir ; Hba1c ; Quicki ; Fasting Insulin ; Glucose Metabolism ; Long-term Effects ; Temperature Variability; Diagnosing Insulin-resistance; Risk-factors; Sensitivity; Population; Pollution
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Language
english
Publication Year
2025
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0
HGF-reported in Year
2025
ISSN (print) / ISBN
0013-936X
e-ISSN
1520-5851
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Pages: 11
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American Chemical Society (ACS)
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Washington, DC
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Peer reviewed
POF-Topic(s)
30202 - Environmental Health
Research field(s)
Genetics and Epidemiology
PSP Element(s)
G-504000-001
G-504000-010
G-505300-001
G-504000-002
Grants
China Scholarship Council
Bundesministerium f?r Bildung und Forschung
Bundesministerium f?r Gesundheit
Helmholtz Zentrum M?nchen
Ministerium f?r Kultur und Wissenschaft des Landes Nordrhein-Westfalen
M?nchner Zentrum f?r Gesundheitswissenschaften, Ludwig-Maximilians-Universit?t M?nchen
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Erfassungsdatum
2025-11-11