Level D· Scientific groundwork from lab and animal studiesAnimal StudyEurope PMCOpen access

Diet and temperature interactively impact brown adipose tissue gene regulation controlled by DNA methylation

Hagemann T., Hoffmann A., Rohde-Zimmermann K., Broghammer H., Massier L., Kovacs P.

Animal Study, published in Mol Metab (2026) — summary generated from the PubMed abstract.

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Level D· Scientific groundwork from lab and animal studiesEvidence level of this study

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

  • Level A · Stronger Clinical Evidence
  • Level B · Emerging clinical evidence with positive signals
  • Level C · Early human research exploring benefits
  • Level D · Scientific groundwork from lab and animal studies
  • Emerging · Emerging topic under active research
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This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.

Study type
Animal Study
Journal
Mol Metab (2026)
Reported sample size
—
Source database
Europe PMC
PMID
41483859
PMCID
PMC12828542
DOI
10.1016/j.molmet.2025.102315

Abstract (original English)

Background Controlling brown adipose tissue (BAT) plasticity offers potential for novel obesity therapies. DNA methylation is closely linked to thermogenic and metabolic pathways and thereby influences BAT function. How metabolic state and cold exposure interact to shape methylation-dependent BAT gene regulation was investigated. Methods Five-week-old mice were fed either chow for 11 weeks (lean) or high-fat diet for 22 weeks to induce obesity (DIO), after which cold exposure was applied for seven days. BAT transcriptomes (RNAseq) and methylomes (RRBS) were generated, and differentially methylated and expressed genes (DMEGs) showing metabolic state-dependent cold responses were identified. Pathway enrichment, epigenetic regulator screening, and transcription factor (TF) motif analyses were performed. DNA methylation was experimentally modulated in vitro to validate selected gene expression responses. Results A total of 1,364 differentially expressed genes (DEGs) were uniquely affected by the interaction of metabolic state and cold, with most downregulated in DIO mice. Sixty-five DMEGs (4 % of DEGs) showed metabolic state-specific responses to cold. In DIO mice, DMEGs were enriched in pathways associated with mitochondrial dysfunction, altered lipid metabolism, neuroendocrine signaling, and stress responses. Several epigenetic regulators, including Tet2, Dnmt3a, and Apobec1, exh

What this study does not prove

  • • This study does not prove SVF is an approved treatment or a replacement for standard care.
  • • This is preclinical work; animal or laboratory results cannot be applied to humans.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

How we grade evidence
AnimalsMice, Inbred C57BLMiceObesityDNA MethylationGene Expression RegulationEpigenesis, GeneticThermogenesisMaleAdipose Tissue, Brown

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