Evidence map›Paper›PMID 28615661›Full record

ArticleScientific reports2017

Increased levels of ascorbic acid in the cerebrospinal fluid of cognitively intact elderly patients with major depression: a preliminary study.

Kenji Hashimoto, Tamaki Ishima, Yasunori Sato, Davide Bruno, Jay Nierenberg, Charles R Marmar, Henrik Zetterberg, Kaj Blennow, Nunzio Pomara

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 32% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. 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

9 authors at 6 institutions in 4 countries.

Kenji HashimotoDivision of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan. hashimoto@faculty.chiba-u.jp.
Tamaki IshimaDivision of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan.
Yasunori SatoDepartment of Global Clinical Research, Chiba University Graduate School of Medicine, Chiba, Japan.
Davide BrunoSchool of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK.
Jay NierenbergNathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, USA.
Charles R MarmarDepartment of Psychiatry, New York University Langone Medical Center, New York, USA.
Henrik ZetterbergClinical Neurochemistry Laboratory, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Kaj BlennowClinical Neurochemistry Laboratory, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Nunzio PomaraNathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, USA.
Center for Forensic Mental Health, Chiba University · JPNYU Langone Health · USUniversity of Gothenburg · SEChiba University · JPLiverpool John Moores University · GBNathan Kline Institute for Psychiatric Research · US

Funding

Plasma and CSF Abeta peptides in late-onset major depressionR01MH080405 · NIMH · NATHAN S. KLINE INSTITUTE FOR PSYCH RES · PI POMARA, NUNZIO · 2007 to 2011
$1.6M
NIMH NIH HHS R01 MH080405
6 · The paper itself

Abstract

Major depressive disorder (MDD) in the elderly is a risk factor for dementia, but the precise biological basis remains unknown, hampering the search for novel biomarkers and treatments. In this study, we performed metabolomics analysis of cerebrospinal fluid (CSF) from cognitively intact elderly patients (N = 28) with MDD and age- and gender-matched healthy controls (N = 18). The CSF levels of 177 substances were measured, while 288 substances were below the detection limit. Only ascorbic acid was significantly different, with higher levels in the MDD group at baseline. There were no correlations between CSF ascorbic acid levels and clinical variables in MDD patients at baseline. At the 3-year follow-up, there was no difference of CSF ascorbic acid levels between the two groups. There was a negative correlation between CSF ascorbic acid and CSF amyloid-β

Indexed as

AgedAmyloid beta-PeptidesAscorbic AcidBiomarkersFemaleHumansMajor Depressive DisorderMaleMetabolomicsNeuropsychological TestsPeptide FragmentsAmyloid beta-Peptidesamyloid beta-protein (1-42)Ascorbic AcidBiomarkersPeptide Fragments

Identifiers

PMID28615661
PMCPMC5471282
OpenAlexW2622509940

What OpenQuestion holds

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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.