Evidence map›Paper›PMID 36792992›Full record

Trial reportBMC geriatrics2023

Blood levels of nicotinic acid negatively correlate with hearing ability in healthy older men.

Yoshiko Nakagawa-Nagahama, Masaki Igarashi, Masaomi Miura, Kosuke Kashiwabara, Keisuke Yaku, Yuichiro Fukamizu, Toshiya Sato, Takanobu Sakurai, Takashi Nakagawa, Takashi Kadowaki and 1 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in BMC geriatrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Nicotinamide Mononucleotide: Research Process in Cardiovascular Diseases.International journal of molecular sciences · 2024
    Review
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

11 authors at 6 institutions in 1 country.

Yoshiko Nakagawa-NagahamaDepartment of Diabetes & Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Masaki IgarashiDepartment of Diabetes & Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. igarashima-int@h.u-tokyo.ac.jp.
Masaomi MiuraDepartment 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.
Yuichiro FukamizuMitsubishi Corporation Life Sciences Limited, Tokyo, Japan.
Toshiya SatoMitsubishi Corporation Life Sciences Limited, Tokyo, Japan.
Takanobu SakuraiMitsubishi Corporation Life Sciences Limited, Tokyo, Japan.
Takashi NakagawaDepartment of Molecular and Medical Pharmacology, Faculty of Medicine, University of Toyama, Toyama, Japan.
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.
The University of Tokyo · JPMitsubishi Group (Japan) · JPUniversity of Toyama · JPMitsubishi Corporation (Japan) · JPToranomon Hospital · JPUniversity of Tokyo Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAge-related hearing loss (ARHL) is a common phenomenon observed during aging. On the other hand, the decrease in Nicotinamide adenine dinucleotide (NAD +) levels is reported to be closely related to the age-related declines in physiological functions such as ARHL in animal studies. Moreover, preclinical studies confirmed NAD + replenishment effectively prevents the onset of age-related diseases. However, there is a paucity of studies on the relationship between NAD

methodsThis study was analyzed the baseline results of our previous clinical trial, in which nicotinamide mononucleotide or placebo was administered to 42 older men (Igarashi et al., NPJ Aging 8:5, 2022). The correlations between blood levels of NAD

resultsPositive associations were observed between levels of nicotinic acid (NA, a NAD

conclusionsWe identified negative correlations between blood concentrations of NA and hearing ability at 1000 and 2000 Hz. NAD

trial registrationThe study was registered at UMIN-CTR (UMIN000036321) on 1st June 2019.

Indexed as

NiacinAgedAgingAnimalsHearingHumansMaleNADRegression AnalysisNADNiacinAge-related hearing lossNAD+NicotinamideNicotinic acid

Identifiers

PMID36792992
PMCPMC9933288
OpenAlexW4320914363

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Registered trials

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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.