Evidence map›Paper›PMID 33477696›Full record

ArticleInternational journal of molecular sciences2021

Nail Melatonin Content: A Suitable Non-Invasive Marker of Melatonin Production.

Alex Gomez-Gomez, Blanca Montero-San-Martin, Noemí Haro, Oscar J Pozo

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 38% 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

4 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Unveiling the Collaborative Effect at the Cucurbit[8]uril-MoSChemistry (Weinheim an der Bergstrasse, Germany) · 2023
    Article
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

4 authors at 3 institutions in 1 country.

Alex Gomez-GomezIntegrative Pharmacology and Systems Neuroscience Group, Institut de l'Hospital del Mar d'Investigacions Mèdiques (IMIM), Doctor Aiguader 88, 08003 Barcelona, Spain.ORCID 0000-0001-8172-1827
Blanca Montero-San-MartinLaboratory Medicine, La Paz University Hospital, Paseo de la Castellana 261, 28046 Madrid, Spain.ORCID 0000-0002-1303-9700
Noemí HaroIntegrative Pharmacology and Systems Neuroscience Group, Institut de l'Hospital del Mar d'Investigacions Mèdiques (IMIM), Doctor Aiguader 88, 08003 Barcelona, Spain.
Oscar J PozoIntegrative Pharmacology and Systems Neuroscience Group, Institut de l'Hospital del Mar d'Investigacions Mèdiques (IMIM), Doctor Aiguader 88, 08003 Barcelona, Spain.ORCID 0000-0002-1735-9728
Hospital del Mar Research Institute · ESHospital Universitario La Paz · ESUniversitat Pompeu Fabra · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Melatonin plays multiple physiological roles in the human body. Evaluation of melatonin production by the determination of urinary 6-sulfatoxymelatonin in 24-h samples has important drawbacks which hinder the successful evaluation of melatonin production in large cohorts. Here, we evaluated the potential of nail analysis for estimating melatonin production. Firstly, mass spectrometry methodology for the determination of melatonin in nails was optimized and successfully validated. The method was found to be linear in the range 6.5-830 fg/mg with intraday and interday accuracy in the range 100-104 %, precision below 15 % and a LOD of 3.5 fg/mg. Secondly, nail melatonin concentrations from 84 volunteers (age 5-96) were determined. The expected correlation between melatonin and age was obtained (correlation coefficient -0.615;

Indexed as

AdolescentAdultAgedAged, 80 and overBiomarkersChildChild, PreschoolFemaleHumansMaleMelatoninMiddle AgedNailsYoung Adult6-sulfatoxymelatoninBiomarkersMelatoninagingfingernailsliquid chromatographymass spectrometrymelatoninnails

Identifiers

PMID33477696
PMCPMC7831915
OpenAlexW3125856790

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.