Evidence map›Paper›PMID 36012459›Full record

SynthesisInternational journal of molecular sciences2022

Neurospecific Molecules Measured in Periphery in Humans: How Do They Correlate with the Brain Levels? A Systematic Review.

Maria A Tikhonova, Svetlana Y Zhanaeva, Anna A Shvaikovskaya, Nikita M Olkov, Lyubomir I Aftanas, Konstantin V Danilenko

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in International journal of molecular sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.9field-weighted citation impact, top 29% 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

8 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Circulating Biomarkers for the Early Diagnosis of Alzheimer's Disease.International journal of molecular sciences · 2025
    Review
  5. Article
  6. Observational
  7. Article
  8. 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

6 authors.

Maria A TikhonovaScientific Research Institute of Neurosciences and Medicine (SRINM), 630117 Novosibirsk, Russia.ORCID 0000-0002-4265-8981
Svetlana Y ZhanaevaScientific Research Institute of Neurosciences and Medicine (SRINM), 630117 Novosibirsk, Russia.
Anna A ShvaikovskayaScientific Research Institute of Neurosciences and Medicine (SRINM), 630117 Novosibirsk, Russia.
Nikita M OlkovScientific Research Institute of Neurosciences and Medicine (SRINM), 630117 Novosibirsk, Russia.
Lyubomir I AftanasScientific Research Institute of Neurosciences and Medicine (SRINM), 630117 Novosibirsk, Russia.
Konstantin V DanilenkoScientific Research Institute of Neurosciences and Medicine (SRINM), 630117 Novosibirsk, Russia.ORCID 0000-0002-2096-4216

Funding

Russian Science Foundation 22-25-00588
6 · The paper itself

Abstract

Human brain state is usually estimated by brain-specific substances in peripheral tissues, but, for most analytes, a concordance between their content in the brain and periphery is unclear. In this systematic review, we summarized the investigated correlations in humans. PubMed was searched up to June 2022. We included studies measuring the same endogenous neurospecific analytes in the central nervous system and periphery in the same subjects. Not eligible were studies of cerebrospinal fluid, with significant blood-brain barrier disruption, of molecules with well-established blood-periphery concordance or measured in brain tumors. Seventeen studies were eligible. Four studies did not report on correlation and four revealed no significant correlation. Four molecules were examined twice. For BDNF, there was no correlation in both studies. For phenylalanine, glutamine, and glutamate, results were contradictory. Strong correlations were found for free tryptophan (

Indexed as

Brain-Derived Neurotrophic FactorTryptophanBiomarkersBrainCentral Nervous SystemHumansBiomarkersBrain-Derived Neurotrophic FactorTryptophanblood-brain barrierblood cellsbrainconcordancehumanimmunoassayneuroimagingplasmapost-mortemserum

Identifiers

PMID36012459
PMCPMC9409387
OpenAlexW4292295105

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.