Evidence map›Paper›PMID 35927255›Full record

Articlenpj aging2022

Chronic nicotinamide mononucleotide supplementation elevates blood nicotinamide adenine dinucleotide levels and alters muscle function in healthy older men.

Masaki Igarashi, Yoshiko Nakagawa-Nagahama, Masaomi Miura, Kosuke Kashiwabara, Keisuke Yaku, Mika Sawada, Rie Sekine, Yuichiro Fukamizu, Toshiya Sato, Takanobu Sakurai and 6 more

Open access · hybridAbstract read
In one paragraph

Article in npj aging, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 5 pooled it
11.9field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

72 citing papers in PubMed, 5 syntheses or guidelines pooled it, 99 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Domain-specific effects of NADFrontiers in nutrition · 2026
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Trial
  7. Trial
  8. Trial
  9. Trial
  10. Trial
  11. Trial
  12. Review
  13. NADBiochemistry and biophysics reports · 2026
    Article
  14. Review
  15. A combined artificial intelligence-wet lab approach identifies a pivotal role of the NADAlzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  16. Review
  17. [Systemic Reprogramming of Cellular Senescence: Coordinated Regulation of Metabolism, Epigenetics, and Proteostasis].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2026
    Review
  18. Article
  19. Article
  20. Review

12 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors at 6 institutions in 1 country.

Masaki Igarashi *Department of Diabetes & Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. igarashima-int@h.u-tokyo.ac.jp.ORCID http://orcid.org/0000-0002-3331-3877
Yoshiko Nakagawa-Nagahama *Department of Diabetes & Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.ORCID http://orcid.org/0000-0001-5162-4663
Masaomi Miura *Department of Diabetes & Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Kosuke KashiwabaraData Science Office, Clinical Research Promotion Center, The University of Tokyo Hospital, Tokyo, Japan.
Keisuke YakuDepartment of Molecular and Medical Pharmacology, Faculty of Medicine, University of Toyama, Toyama, Japan.
Mika SawadaDepartment of Clinical Nutrition Therapy, The University of Tokyo Hospital, The University of Tokyo, Tokyo, Japan.
Rie SekineDepartment of Clinical Nutrition Therapy, The University of Tokyo Hospital, The University of Tokyo, Tokyo, Japan.
Yuichiro FukamizuMitsubishi Corporation Life Sciences Limited, Tokyo, Japan.ORCID http://orcid.org/0000-0002-5206-1468
Toshiya SatoMitsubishi Corporation Life Sciences Limited, Tokyo, Japan.
Takanobu SakuraiMitsubishi Corporation Life Sciences Limited, Tokyo, Japan.
Jiro SatoDepartment of Radiology, Tokyo Metropolitan Police Hospital Tokyo, Tokyo, Japan.
Kenji InoDepartment of Radiation Technology, The University of Tokyo Hospital, Tokyo, Japan.
Naoto KubotaDepartment of Diabetes & Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Takashi NakagawaDepartment of Molecular and Medical Pharmacology, Faculty of Medicine, University of Toyama, Toyama, Japan.ORCID http://orcid.org/0000-0001-5539-7605
Takashi KadowakiToranomon Hospital, Tokyo, Japan.
Toshimasa YamauchiDepartment of Diabetes & Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. tyamau@m.u-tokyo.ac.jp.
University of Tokyo Hospital · JPMitsubishi Group (Japan) · JPThe University of Tokyo · JPUniversity of Toyama · JPTokyo Metropolitan Police Hospital · JPToranomon Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preclinical studies have revealed that the elevation of nicotinamide adenine dinucleotide (NAD + ) upon the administration of nicotinamide mononucleotide (NMN), an NAD + precursor, can mitigate aging-related disorders; however, human data on this are limited. We investigated whether the chronic oral supplementation of NMN can elevate blood NAD + levels and alter physiological dysfunctions in healthy older participants. We administered 250 mg NMN per day to aged men for 6 or 12 weeks in a placebo-controlled, randomized, double-blind, parallel-group trial. Chronic NMN supplementation was well tolerated and caused no significant deleterious effect. Metabolomic analysis of whole blood samples demonstrated that oral NMN supplementation significantly increased the NAD + and NAD + metabolite concentrations. There were nominally significant improvements in gait speed and performance in the left grip test, which should be validated in larger studies; however, NMN exerted no significant effect on body composition. Therefore, chronic oral NMN supplementation can be an efficient NAD + booster for preventing aging-related muscle dysfunctions in humans.

Identifiers

PMID35927255
PMCPMC9158788
OpenAlexW4225248693

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.