Last updated August 29, 2026
Key finding
226 genes were up-regulated in men with obesity and DM2 under bright light conditions.
This study investigated the impact of bright light exposure on the white adipose tissue transcriptome in individuals with obesity and type 2 diabetes, revealing significant gene expression changes.
Quick read
The essential study design details in one scan.
EvidenceScore™
Moderate
Study type
RCTs
Follow-up
Short-Term (≤3 mo)
Risk of bias
High Risk
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Plain-language summary
A plain-language read of the study’s main message and where it applies.
Study focus
This study investigated the impact of bright light exposure on the white adipose tissue transcriptome in individuals with obesity and type 2 diabetes, revealing significant gene expression changes.
These findings suggest that bright light exposure could be a potential therapeutic strategy for improving metabolic health in individuals with obesity and type 2 diabetes by influencing gene expression in fat tissue. Understanding how light affects biological processes may lead to new interventions for managing these conditions.
The study's sample size and demographic diversity may limit generalizability. Effectiveness of bright light exposure remains unclear due to lack of p-values. No long-term effects of light exposure were assessed.
Published in
Publication details and source links for this paper.
Anhui W, Jeroen V, Aldo J, et al. The Effects of Bright Light Exposure on the Human White Adipose Tissue Transcriptome. Clocks & Sleep. 2025;7(3):45. doi:10.3390/clockssleep7030045
Bright light exposure led to the up-regulation of 226 genes in WAT.
Gene sets related to immune cell functioning were also up-regulated under bright light.
Dim light exposure resulted in no significant changes in gene expression.
Evidence network
Understand where this research contributes within the broader evidence network.
This study contributes evidence to Bright Light Exposure, Dim Light Exposure and Gene set changes in white adipose tissue due to bright light exposure, REV-ERBα gene expression.
This study contributes evidence to
Primary intervention
Bright Light Exposure
Primary outcomes
Primary intervention
Intervention and outcome relationships this study adds to the evidence network.
Editorial context
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Evidence network role
This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.
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Related topics
4
Evidence pairs
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Related studies
Core evidence
The primary outcomes reported in this study.
Bright Light Exposure → Gene set changes in white adipose tissue due to bright light exposure
Bright Light Exposure → Gene set changes in white adipose tissue due to bright light exposure
Bright Light Exposure → REV-ERBα gene expression
Bright Light Exposure → REV-ERBα gene expression
Dim Light Exposure → Gene set changes in white adipose tissue due to bright light exposure
Dim Light Exposure → Gene set changes in white adipose tissue due to bright light exposure
Dim Light Exposure → REV-ERBα gene expression
Dim Light Exposure → REV-ERBα gene expression
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Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Bright Light Exposure and REV-ERBα gene expression, Bright Light Exposure and Gene set changes in white adipose tissue due to bright light exposure.
This study contributes to the evidence on the following intervention-outcome relationships.
Devices & Technology
Devices & Technology
Curated evidence collections and hubs this study is part of.
All studies on Bright Light Exposure
Contributes to Bright Light Exposure evidence base.
All studies measuring Gene set changes in white adipose tissue due to bright light exposure
Measures Gene set changes in white adipose tissue due to bright light exposure as a key outcome.
All studies measuring REV-ERBα gene expression
Measures REV-ERBα gene expression as a key outcome.
Latest published studies
Published within the last 2 years.
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1 results
1 results
1 results
1 results
1 results
Generated from the study's connected evidence using Evidence Intelligence™.
Bright Light Exposure appears to improve Gene set changes in white adipose tissue due to bright light exposure.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Gene set changes in white adipose tissue due to bright light exposure
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Bright Light Exposure appears to improve REV-ERBα gene expression.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
REV-ERBα gene expression
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Current evidence does not show a clear benefit of Dim Light Exposure for Gene set changes in white adipose tissue due to bright light exposure.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Gene set changes in white adipose tissue due to bright light exposure
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | neutral | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Current evidence does not show a clear benefit of Dim Light Exposure for REV-ERBα gene expression.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
REV-ERBα gene expression
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | neutral | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
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