Definition and research guide
This page combines a MeSH definition, publication statistics and selected research abstracts. It is a starting point for reading the literature, not a medical textbook or a systematic evidence review.
Content available: 4 complete abstracts (577 words), 10 references. Full article text is not stored or reproduced here; follow the PMID, DOI or PMC links to read the original sources and their access terms.
Definition
The generation of heat in order to maintain body temperature. The uncoupled oxidation of fatty acids contained within brown adipose tissue and shivering are examples of thermogenesis in mammals.
Definition: NLM Medical Subject Headings (MeSH) scope note (Public domain (U.S. National Library of Medicine); attribution requested). View the MeSH record.
Also known as: Thermogeneses; Heat Production; Production, Heat; Adaptive Thermogenesis; Thermogenesis, Adaptive; Facultative Thermogenesis; Thermogenesis, Facultative; Nonshivering Thermogenesis.
Where it fits in the MeSH classification
- Broader topics
- Body Temperature Regulation
- Narrower topics
- Shivering
Related concepts
- Shivering
- Mammals
Research landscape
PubMed indexes 7,649 records tagged with the MeSH heading “Thermogenesis” (counts retrieved 2026-10-31). 2,648 of them (34.6%) were published from 2020 onward, and the busiest period so far is 2020 onward with 2,648 records.
Reviews account for 1,302 records (17.0%) and meta-analyses for 84. Randomized controlled trials number 568 (7.4%) as a share of all records on the topic.
Show the data
| Period | Records |
|---|---|
| through 1999 | 1,305 |
| 2000-2009 | 1,141 |
| 2010-2019 | 2,555 |
| 2020 onward | 2,648 |
Publication-type chart data
| Type | Records | Share |
|---|---|---|
| Reviews | 1,302 | 17.0% |
| Meta-analyses | 84 | 1.1% |
| Randomized controlled trials | 568 | 7.4% |
Method: PubMed query "Thermogenesis"[MeSH Terms] with publication-type and date filters, retrieved 2026-10-31.
Reading the evidence in anatomy and physiology
Anatomy describes how body structures are built and physiology describes how they normally work, so most findings here are descriptive or mechanistic rather than evidence about treatment. Much of what is known comes from dissection, imaging, tissue studies and experiments in animals, and measurements in healthy volunteers can differ from those in people with disease or at different ages. Normal ranges vary between individuals and populations. Check whether a result was measured in people or in another species, the age and health of the participants, and the method used.
Evidence from open-access studies
These open-access studies come from PubMed’s best-match results for this heading (papers whose main topic it is), ranked here by citation count, with one recent addition. Each abstract is reproduced in full under its recorded open licence so that you can read the authors’ own words. They illustrate the literature; they are not a systematic summary of it. Citation counts measure attention, not reliability or clinical benefit.
| Study / authors | Year | Source label / design | Europe PMC citations | Licence / source |
|---|---|---|---|---|
| Hypothalamic control of energy expenditure and thermogenesis | 2022 | Review article Design not recorded in structured metadata | 170 | cc by PMID 35301430 · DOI · PMC9076616 |
| Lipolysis drives expression of the constitutively active receptor GPR3 to induce adipose thermogenesis | 2021 | Research article Design not recorded in structured metadata | 127 | cc by PMID 34048700 · DOI · PMC8238500 |
| BCAA-nitrogen flux in brown fat controls metabolic health independent of thermogenesis | 2024 | Research article Design not recorded in structured metadata | 103 | cc by PMID 38653240 · DOI · PMC11145561 |
| The innate thermogenic capacity of brown adipose tissue develops independently of sympathetic signaling | 2026 | Research article Design not recorded in structured metadata | 1 | cc by PMID 41380775 · DOI · PMC12794445 |
Hypothalamic control of energy expenditure and thermogenesis [1]
Abstract reading summary — source excerpts
- Opening excerpt
- Energy expenditure and energy intake need to be balanced to maintain proper energy homeostasis.
- Closing excerpt
- In this review, we elucidate recent progress in understanding the mechanism of how the hypothalamus affects basal metabolism, modulates physical activity, and adapts to environmental temperature and food intake changes.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (121 words)
Energy expenditure and energy intake need to be balanced to maintain proper energy homeostasis. Energy homeostasis is tightly regulated by the central nervous system, and the hypothalamus is the primary center for the regulation of energy balance. The hypothalamus exerts its effect through both humoral and neuronal mechanisms, and each hypothalamic area has a distinct role in the regulation of energy expenditure. Recent studies have advanced the understanding of the molecular regulation of energy expenditure and thermogenesis in the hypothalamus with targeted manipulation techniques of the mouse genome and neuronal function. In this review, we elucidate recent progress in understanding the mechanism of how the hypothalamus affects basal metabolism, modulates physical activity, and adapts to environmental temperature and food intake changes.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 35301430 · DOI · PMC9076616
Lipolysis drives expression of the constitutively active receptor GPR3 to induce adipose thermogenesis [2]
Abstract reading summary — source excerpts
- Opening excerpt
- Thermogenic adipocytes possess a therapeutically appealing, energy-expending capacity, which is canonically cold-induced by ligand-dependent activation of β-adrenergic G protein-coupled receptors (GPCRs).
- Closing excerpt
- Taken together, our findings reveal a noncanonical mechanism of GPCR control and thermogenic activation through the lipolysis-induced expression of constitutively active GPR3.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (151 words)
Thermogenic adipocytes possess a therapeutically appealing, energy-expending capacity, which is canonically cold-induced by ligand-dependent activation of β-adrenergic G protein-coupled receptors (GPCRs). Here, we uncover an alternate paradigm of GPCR-mediated adipose thermogenesis through the constitutively active receptor, GPR3. We show that the N terminus of GPR3 confers intrinsic signaling activity, resulting in continuous Gs-coupling and cAMP production without an exogenous ligand. Thus, transcriptional induction of Gpr3 represents the regulatory parallel to ligand-binding of conventional GPCRs. Consequently, increasing Gpr3 expression in thermogenic adipocytes is alone sufficient to drive energy expenditure and counteract metabolic disease in mice. Gpr3 transcription is cold-stimulated by a lipolytic signal, and dietary fat potentiates GPR3-dependent thermogenesis to amplify the response to caloric excess. Moreover, we find GPR3 to be an essential, adrenergic-independent regulator of human brown adipocytes. Taken together, our findings reveal a noncanonical mechanism of GPCR control and thermogenic activation through the lipolysis-induced expression of constitutively active GPR3.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 34048700 · DOI · PMC8238500
BCAA-nitrogen flux in brown fat controls metabolic health independent of thermogenesis [3]
Abstract reading summary — source excerpts
- Opening excerpt
- Brown adipose tissue (BAT) is best known for thermogenesis.
- Closing excerpt
- This work uncovers a metabolite-mediated pathway through which BAT controls metabolic health beyond thermogenesis.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (151 words)
Brown adipose tissue (BAT) is best known for thermogenesis. Rodent studies demonstrated that enhanced BAT thermogenesis is tightly associated with increased energy expenditure, reduced body weight, and improved glucose homeostasis. However, human BAT is protective against type 2 diabetes, independent of body weight. The mechanism underlying this dissociation remains unclear. Here, we report that impaired mitochondrial catabolism of branched-chain amino acids (BCAAs) in BAT, by deleting mitochondrial BCAA carriers (MBCs), caused systemic insulin resistance without affecting energy expenditure and body weight. Brown adipocytes catabolized BCAA in the mitochondria as nitrogen donors for the biosynthesis of non-essential amino acids and glutathione. Impaired mitochondrial BCAA-nitrogen flux in BAT resulted in increased oxidative stress, decreased hepatic insulin signaling, and decreased circulating BCAA-derived metabolites. A high-fat diet attenuated BCAA-nitrogen flux and metabolite synthesis in BAT, whereas cold-activated BAT enhanced the synthesis. This work uncovers a metabolite-mediated pathway through which BAT controls metabolic health beyond thermogenesis.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 38653240 · DOI · PMC11145561
The innate thermogenic capacity of brown adipose tissue develops independently of sympathetic signaling [4]
Abstract reading summary — source excerpts
- Opening excerpt
- Brown adipose tissue (BAT) dissipates energy as heat in response to β-adrenergic signaling induced by the sympathetic nervous system (SNS).
- Closing excerpt
- Defining the molecular programs that drive BAT development may reveal new strategies to enhance BAT formation and function without relying on β-adrenergic stimulation.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (154 words)
Brown adipose tissue (BAT) dissipates energy as heat in response to β-adrenergic signaling induced by the sympathetic nervous system (SNS). While this pathway is essential for the cold-induced remodeling and metabolic activity of BAT, its role in developmental programming is unclear. Here, we show that brown adipocytes acquire thermogenic identity during embryogenesis independently of sympathetic innervation and β-adrenergic signaling. Genetic sympathectomy or disrupted β-adrenergic signaling had minimal effects on thermogenic gene expression or tissue morphology during either embryonic or postnatal BAT development in the absence of cold stress. Functional analyses revealed that the SNS is likely required for circulatory support of BAT activity during β-adrenergic stimulation but not for the development of the thermogenic capacity of BAT itself. These findings demonstrate that developmental and cold-responsive BAT remodeling are mechanistically distinct processes. Defining the molecular programs that drive BAT development may reveal new strategies to enhance BAT formation and function without relying on β-adrenergic stimulation.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 41380775 · DOI · PMC12794445
Key reviews and meta-analyses
The most cited review-type papers among PubMed’s best-match results for this heading, listed with bibliographic details only. Follow the links for the full text and access terms.
- Research article Brown adipose tissue: function and physiological significance [5]
- Research article New Advances in Adaptive Thermogenesis: UCP1 and Beyond [6]
- Research article Physiological functions of the mitochondrial uncoupling proteins UCP2 and UCP3 [7]
- Research article The effects of high protein diets on thermogenesis, satiety and weight loss: a critical review [8]
- Research article γδ T cells in tissue physiology and surveillance [9]
- Research article The Common and Distinct Features of Brown and Beige Adipocytes [10]
References
- Tran LT, Park S, Kim SK, Lee JS, Kim KW, Kwon O. Hypothalamic control of energy expenditure and thermogenesis. . 2022. PMID 35301430 · DOI · PMC9076616
- Sveidahl Johansen O, Ma T, Hansen JB, Markussen LK, Schreiber R, Reverte-Salisa L, et al.. Lipolysis drives expression of the constitutively active receptor GPR3 to induce adipose thermogenesis. . 2021. PMID 34048700 · DOI · PMC8238500
- Verkerke ARP, Wang D, Yoshida N, Taxin ZH, Shi X, Zheng S, et al.. BCAA-nitrogen flux in brown fat controls metabolic health independent of thermogenesis. . 2024. PMID 38653240 · DOI · PMC11145561
- Fein EC, Mukherjee S, Baur JA, Seale P. The innate thermogenic capacity of brown adipose tissue develops independently of sympathetic signaling. . 2026. PMID 41380775 · DOI · PMC12794445
- Cannon B, Nedergaard J. Brown adipose tissue: function and physiological significance. Physiol Rev. 2004. PMID 14715917 · DOI
- Chouchani ET, Kazak L, Spiegelman BM. New Advances in Adaptive Thermogenesis: UCP1 and Beyond. Cell Metab. 2019. PMID 30503034 · DOI
- Brand MD, Esteves TC. Physiological functions of the mitochondrial uncoupling proteins UCP2 and UCP3. Cell Metab. 2005. PMID 16098826 · DOI
- Halton TL, Hu FB. The effects of high protein diets on thermogenesis, satiety and weight loss: a critical review. J Am Coll Nutr. 2004. PMID 15466943 · DOI
- Ribot JC, Lopes N, Silva-Santos B. γδ T cells in tissue physiology and surveillance. Nat Rev Immunol. 2021. PMID 33057185 · DOI
- Ikeda K, Maretich P, Kajimura S. The Common and Distinct Features of Brown and Beige Adipocytes. Trends Endocrinol Metab. 2018. PMID 29366777 · DOI · PMC5826798
About this article
- Sources
- NLM Medical Subject Headings (definition, synonyms); NCBI PubMed (counts, identifiers); Europe PMC (open-access abstracts and citation counts).
- Verification
- Every reference was resolved against PubMed on 2026-10-31; title, year and DOI matched.
- Review state
- automated source verified; no human expert review has been recorded yet.
- Version
- 1, last updated 2026-10-31.
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Evidence strength
EvidenceHelix's computed view of the study designs behind this topic: how common meta-analyses, randomized trials and reviews are, how recent the literature is, and a plain-language reading. It describes the design mix of the literature. It is not a quality appraisal of any study, and it is not medical advice.