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Study · Measured the body's own peptide · 2025

15 results

NAD replenishment restores mitochondrial function and thermogenesis in the brown adipose tissue of mice with obesity.

Braga RR, Rocha MB, Morelli AP, da Costa RG, Mori MAS, da Silva ASR, Pauli JR, Cintra DE, Ropelle ER

The Journal of physiology5 May 2025Cited by 4 (Europe PMC)

Summary

Brown adipose tissue (BAT) is a highly specialized thermogenic tissue and plays a critical role in controlling energy expenditure and metabolic homeostasis. BAT dysfunction is associated with body weight gain and metabolic disorders in mice models. Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function. Using a wide multi-omics and phenotypic panel of isogenic strains of BXD mice, we found that the NAD-biosynthesis pathway in BAT is closely associated with body weight gain, adiposity, insulin resistance, oxygen consumption, exercise capacity and mitochondrial metabolism. Interestingly, the high-fat diet (HFD) treatment disrupted the NAD-biosynthesis pathway, reducing Nampt and NMNat3 protein contents and inducing severe mitochondrial dysfunction in BAT of mice. Finally, the oral treatment with nicotinamide riboside (NR), an NAD+ precursor, significantly boosted NAD+ levels and preserved the morphofunctional mitochondria aspects of mitochondria, and the thermogenesis capacity of BAT in HFD-fed mice. These data point to the NAD synthesis pathway as a promising therapeutic adjuvant target in body thermogenesis management. KEY POINTS: Obesity impairs the NAD+ biosynthesis pathway, leading to mitochondrial dysfunction and reduced thermogenic capacity. NAD+ metabolism enzymes Nampt and NMNat3 are crucial for mitochondrial function in BAT. Nicotinamide riboside treatment increases the expression of key thermogenic proteins and NAD+-related enzymes in BAT, optimizing adaptive thermogenesis and mitochondria function.
CC BYText from Europe PMC. Highlighted sentences are the source of results.

Results from this study15

No result from this study comes from a test of the peptide.

Natural levels measured1

These results measure the body's own peptide. Nobody was given the peptide. They are not evidence about taking it. They are left out of key results, evidence counts and charts.

  1. 01AnimalEndogenous levelAnimal study (in vivo)Mechanism

    In HFD-fed mice, oral nicotinamide riboside increased natural NAD levels in brown adipose tissue.

    In plain wordsIn mice fed a high-fat diet, nicotinamide riboside increased the body's own NAD levels.

    Outcome
    IncreaseNAD levels after NR
    Study

    mousen: not reported in source

    HFD-fed mice
    Outcome group
    Mitochondrial function · Metabolic and weight

    Source sentences

    Summary
    Finally, the oral treatment with nicotinamide riboside (NR), an NAD+ precursor, significantly boosted NAD+ levels and preserved the morphofunctional mitochondria aspects of mitochondria, and the thermogenesis capacity of BAT in HFD-fed mice.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    This result measures the body's own NAD+ (nicotinamide adenine dinucleotide). Nobody was given the peptide. It is not evidence about taking it.

Studies that did not test the peptide alone14

In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. These results are not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  1. 02AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Other

    In BXD mice, the NAD-biosynthesis pathway in brown adipose tissue was associated with body weight gain.

    In plain wordsIn mice, the NAD-biosynthesis pathway was linked to body weight gain.

    Outcome
    Direction not reportedBody weight gain association
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Body weight · Metabolic and weight

    Source sentences

    Summary
    Using a wide multi-omics and phenotypic panel of isogenic strains of BXD mice, we found that the NAD-biosynthesis pathway in BAT is closely associated with body weight gain, adiposity, insulin resistance, oxygen consumption, exercise capacity and mitochondrial metabolism.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  2. 03AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Other

    In BXD mice, the NAD-biosynthesis pathway in brown adipose tissue was associated with adiposity.

    In plain wordsIn mice, the NAD-biosynthesis pathway was linked to body fat.

    Outcome
    Direction not reportedAdiposity association
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Body composition · Metabolic and weight

    Source sentences

    Summary
    Using a wide multi-omics and phenotypic panel of isogenic strains of BXD mice, we found that the NAD-biosynthesis pathway in BAT is closely associated with body weight gain, adiposity, insulin resistance, oxygen consumption, exercise capacity and mitochondrial metabolism.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  3. 04AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Other

    In BXD mice, the NAD-biosynthesis pathway was associated with insulin resistance.

    In plain wordsIn mice, the NAD-biosynthesis pathway was linked to insulin resistance.

    Outcome
    Direction not reportedInsulin resistance association
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Glycemic control · Metabolic and weight

    Source sentences

    Summary
    Using a wide multi-omics and phenotypic panel of isogenic strains of BXD mice, we found that the NAD-biosynthesis pathway in BAT is closely associated with body weight gain, adiposity, insulin resistance, oxygen consumption, exercise capacity and mitochondrial metabolism.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  4. 05AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Other

    In BXD mice, the NAD-biosynthesis pathway was associated with oxygen consumption.

    In plain wordsIn mice, the NAD-biosynthesis pathway was linked to oxygen consumption.

    Outcome
    Direction not reportedOxygen consumption association
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Mitochondrial function · Metabolic and weight

    Source sentences

    Summary
    Using a wide multi-omics and phenotypic panel of isogenic strains of BXD mice, we found that the NAD-biosynthesis pathway in BAT is closely associated with body weight gain, adiposity, insulin resistance, oxygen consumption, exercise capacity and mitochondrial metabolism.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  5. 06AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Other

    In BXD mice, the NAD-biosynthesis pathway was associated with exercise capacity.

    In plain wordsIn mice, the NAD-biosynthesis pathway was linked to exercise capacity.

    Outcome
    Direction not reportedExercise capacity association
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Exercise and physical function · Musculoskeletal

    Source sentences

    Summary
    Using a wide multi-omics and phenotypic panel of isogenic strains of BXD mice, we found that the NAD-biosynthesis pathway in BAT is closely associated with body weight gain, adiposity, insulin resistance, oxygen consumption, exercise capacity and mitochondrial metabolism.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  6. 07AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Other

    In BXD mice, the NAD-biosynthesis pathway was associated with mitochondrial metabolism.

    In plain wordsIn mice, the NAD-biosynthesis pathway was linked to mitochondrial metabolism.

    Outcome
    Direction not reportedMitochondrial metabolism association
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Mitochondrial function · Metabolic and weight

    Source sentences

    Summary
    Using a wide multi-omics and phenotypic panel of isogenic strains of BXD mice, we found that the NAD-biosynthesis pathway in BAT is closely associated with body weight gain, adiposity, insulin resistance, oxygen consumption, exercise capacity and mitochondrial metabolism.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  7. 08AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Mechanism

    In mice, a high-fat diet disrupted NAD biosynthesis and reduced Nampt protein content in brown adipose tissue.

    In plain wordsIn mice, a high-fat diet reduced Nampt protein in the NAD-biosynthesis pathway.

    Outcome
    DecreaseNampt protein content
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Receptor activity and mechanism · Metabolic and weight

    Source sentences

    Summary
    Interestingly, the high-fat diet (HFD) treatment disrupted the NAD-biosynthesis pathway, reducing Nampt and NMNat3 protein contents and inducing severe mitochondrial dysfunction in BAT of mice.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  8. 09AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Mechanism

    In mice, a high-fat diet disrupted NAD biosynthesis and reduced NMNat3 protein content in brown adipose tissue.

    In plain wordsIn mice, a high-fat diet reduced NMNat3 protein in the NAD-biosynthesis pathway.

    Outcome
    DecreaseNMNat3 protein content
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Receptor activity and mechanism · Metabolic and weight

    Source sentences

    Summary
    Interestingly, the high-fat diet (HFD) treatment disrupted the NAD-biosynthesis pathway, reducing Nampt and NMNat3 protein contents and inducing severe mitochondrial dysfunction in BAT of mice.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  9. 10AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Mechanism

    In mice, a high-fat diet disrupted NAD biosynthesis and induced mitochondrial dysfunction in brown adipose tissue.

    In plain wordsIn mice, a high-fat diet disrupted NAD biosynthesis and damaged mitochondrial function.

    Outcome
    IncreaseMitochondrial dysfunction
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Mitochondrial function · Metabolic and weight

    Source sentences

    Summary
    Interestingly, the high-fat diet (HFD) treatment disrupted the NAD-biosynthesis pathway, reducing Nampt and NMNat3 protein contents and inducing severe mitochondrial dysfunction in BAT of mice.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  10. 11AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Efficacy outcome

    In HFD-fed mice, nicotinamide riboside, an NAD precursor, preserved mitochondrial morphology in brown adipose tissue.

    In plain wordsIn mice fed a high-fat diet, the NAD precursor nicotinamide riboside preserved mitochondrial structure.

    Outcome
    Not applicableMitochondrial morphology
    Study

    mousen: not reported in source

    HFD-fed mice
    Outcome group
    Mitochondrial function · Metabolic and weight

    Source sentences

    Summary
    Finally, the oral treatment with nicotinamide riboside (NR), an NAD+ precursor, significantly boosted NAD+ levels and preserved the morphofunctional mitochondria aspects of mitochondria, and the thermogenesis capacity of BAT in HFD-fed mice.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  11. 12AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Efficacy outcome

    In HFD-fed mice, nicotinamide riboside, an NAD precursor, preserved mitochondrial function in brown adipose tissue.

    In plain wordsIn mice fed a high-fat diet, the NAD precursor nicotinamide riboside preserved mitochondrial function.

    Outcome
    Not applicableMitochondrial function
    Study

    mousen: not reported in source

    HFD-fed mice
    Outcome group
    Mitochondrial function · Metabolic and weight

    Source sentences

    Summary
    Finally, the oral treatment with nicotinamide riboside (NR), an NAD+ precursor, significantly boosted NAD+ levels and preserved the morphofunctional mitochondria aspects of mitochondria, and the thermogenesis capacity of BAT in HFD-fed mice.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  12. 13AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Efficacy outcome

    In HFD-fed mice, nicotinamide riboside, an NAD precursor, preserved brown adipose tissue thermogenesis capacity.

    In plain wordsIn mice fed a high-fat diet, the NAD precursor nicotinamide riboside preserved heat production in brown fat.

    Outcome
    Not applicableThermogenesis capacity
    Study

    mousen: not reported in source

    HFD-fed mice
    Outcome group
    Energy expenditure and thermogenesis · Metabolic and weight

    Source sentences

    Summary
    Finally, the oral treatment with nicotinamide riboside (NR), an NAD+ precursor, significantly boosted NAD+ levels and preserved the morphofunctional mitochondria aspects of mitochondria, and the thermogenesis capacity of BAT in HFD-fed mice.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  13. 14AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Mechanism

    In mice, the NAD precursor nicotinamide riboside increased expression of key thermogenic proteins in brown adipose tissue.

    In plain wordsIn mice, the NAD precursor nicotinamide riboside increased key heat-producing proteins in brown fat.

    Outcome
    IncreaseThermogenic protein expression
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Energy expenditure and thermogenesis · Metabolic and weight

    Source sentences

    Summary
    Nicotinamide riboside treatment increases the expression of key thermogenic proteins and NAD+-related enzymes in BAT, optimizing adaptive thermogenesis and mitochondria function.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

  14. 15AnimalNot a test of NAD+ (nicotinamide adenine dinucleotide) aloneAnimal study (in vivo)Mechanism

    In mice, nicotinamide riboside increased expression of NAD-related enzymes in brown adipose tissue.

    In plain wordsIn mice, nicotinamide riboside increased NAD-related enzymes in brown fat.

    Outcome
    IncreaseNAD-related enzyme expression
    Study

    mousen: not reported in source

    BXD mice
    Outcome group
    Receptor activity and mechanism · Metabolic and weight

    Source sentences

    Summary
    Nicotinamide riboside treatment increases the expression of key thermogenic proteins and NAD+-related enzymes in BAT, optimizing adaptive thermogenesis and mitochondria function.
    1 context sentence
    Summary · context
    Here, we investigated the influence of the NAD-biosynthesis pathway in the control of BAT metabolism and function.

    In this study, NAD+ (nicotinamide adenine dinucleotide) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking NAD+ (nicotinamide adenine dinucleotide).

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    14 Oct 2026, 05:02 UTC

    Study results updated

  2. Version 1

    14 Oct 2026, 01:46 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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