Evidence map›Paper›PMID 35050142›Full record

ArticleMetabolites2021

Regional Brain Analysis of Modified Amino Acids and Dipeptides during the Sleep/Wake Cycle.

Theodosia Vallianatou, Nicholas B Bèchet, Mario S P Correia, Iben Lundgaard, Daniel Globisch

Open access · goldAbstract read
In one paragraph

Article in Metabolites, 2021. 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
0.6field-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

8 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. The Role of the Kynurenine/AhR Pathway in Diseases Related to Metabolism and Cancer.International journal of tryptophan research : IJTR · 2023
    Review
  7. Article
  8. 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

5 authors at 2 institutions in 1 country.

Theodosia VallianatouScience for Life Laboratory, Department of Chemistry-BMC, Uppsala University, Box 599, SE-75124 Uppsala, Sweden.ORCID 0000-0002-1477-7756
Nicholas B BèchetDepartment of Experimental Medical Science, Lund University, SE-22362 Lund, Sweden.ORCID 0000-0001-8949-4614
Mario S P CorreiaScience for Life Laboratory, Department of Chemistry-BMC, Uppsala University, Box 599, SE-75124 Uppsala, Sweden.
Iben LundgaardDepartment of Experimental Medical Science, Lund University, SE-22362 Lund, Sweden.
Daniel GlobischScience for Life Laboratory, Department of Chemistry-BMC, Uppsala University, Box 599, SE-75124 Uppsala, Sweden.ORCID 0000-0002-4526-5788
Uppsala University · SELund University · SE

Funding

Hjärnfonden FO 2019-0142Hjärnfonden FO 2021-0117Knut and Alice Wallenberg Foundation Starting GrantRoyal Physiographic Society Lund N/AScience for Life Laboratory Starting GrantSwedish Cancer Society 19 0347 PjSwedish National Molecular Medicine Fellows Program N/ASwedish Research Council VR 2016-04423
6 · The paper itself

Abstract

Sleep is a state in which important restorative and anabolic processes occur. Understanding changes of these metabolic processes during the circadian rhythm in the brain is crucial to elucidate neurophysiological mechanisms important for sleep function. Investigation of amino acid modifications and dipeptides has recently emerged as a valuable approach in the metabolic profiling of the central nervous system. Nonetheless, very little is known about the effects of sleep on the brain levels of amino acid analogues. In the present study, we examined brain regional sleep-induced alterations selective for modified amino acids and dipeptides using Ultra-high performance liquid chromatography-MS/MS (UHPLC-MS/MS) based metabolomics. Our approach enabled the detection and identification of numerous amino acid-containing metabolites in the cortex, the hippocampus, the midbrain, and the cerebellum. In particular, analogues of the aromatic amino acids phenylalanine, tyrosine and tryptophan were significantly altered during sleep in the investigated brain regions. Cortical levels of medium and long chain

Indexed as

amino acidsbrain regionsdipeptidesmass spectrometrymetabolomicsmodificationssleep/wake cycle

Identifiers

PMID35050142
PMCPMC8780251
OpenAlexW4200313547

What OpenQuestion holds

Textmetadata
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.