Evidence map›Paper›PMID 31520071›Full record

ArticleScientific reports2019

pLG72 levels increase in early phase of Alzheimer's disease but decrease in late phase.

Chieh-Hsin Lin, Chih-Chiang Chiu, Chiung-Hsien Huang, Hui-Ting Yang, Hsien-Yuan Lane

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.5field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 20 citations in OpenAlex.

  1. Trial
  2. Review
  3. International journal of molecular sciences · 2025
    Article
  4. Aspartate in the Brain: A Review.Neurochemical research · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. d-Amino Acids and pLG72 in Alzheimer's Disease and Schizophrenia.International journal of molecular sciences · 2021
    Review
  11. Review
  12. 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

5 authors at 5 institutions in 1 country.

Chieh-Hsin LinDepartment of Psychiatry, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
Chih-Chiang ChiuDepartment of Psychiatry, Taipei City Psychiatric Center, Taipei, Taiwan.
Chiung-Hsien HuangDepartment of Medicine Research, China Medical University Hospital, Taichung, Taiwan.
Hui-Ting YangDepartment of Psychiatry, School of Medicine, Taipei Medical University, Taipei, Taiwan.
Hsien-Yuan LaneGraduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan. hylane@gmail.com.
Bali Psychiatric Center · TWChina Medical University · TWChina Medical University Hospital · TWKaohsiung Chang Gung Memorial Hospital · TWTaipei Medical University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

pLG72, named as D-amino acid oxidase activator (although it is not an activator of D-amino acid oxidase demonstrated by later studies), in mitochondria has been regarded as an important modulator of D-amino acid oxidase that can regulate the N-methyl-D-aspartate receptor (NMDAR). Both oxidative stress in mitochondria and NMDAR neurotransmission play essential roles in the process of neurodegenerative dementia. The aim of the study was to investigate whether pLG72 levels changed with the severity of neurodegenerative dementia. We enrolled 376 individuals as the overall cohort, consisting of five groups: healthy elderly, amnestic mild cognitive impairment [MCI], mild Alzheimer's disease [AD], moderate AD, and severe AD. pLG72 levels in plasma were measured using Western blotting. The severity of cognitive deficit was principally evaluated by Clinical Dementia Rating Scale. A gender- and age- matched cohort was selected to elucidate the effects of gender and age. pLG72 levels increased in the MCI and mild AD groups when compared to the healthy group. However, pLG72 levels in the moderate and severe AD groups were lower than those in the mild AD group. D-serine level and D- to total serine ratio were significantly different among the five groups. L-serine levels were correlated with the pLG72 levels. The results in the gender- and age- matched cohort were similar to those of the overall cohort. The finding supports the hypothesis of NMDAR hypofunction in early-phase dementia and NMDAR hyperfunction in late-phase dementia. Further studies are warranted to test whether pLG72 could reflect the function of NMDAR.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseBiomarkersCase-Control StudiesCognitive DysfunctionCohort StudiesFemaleHumansIntracellular Signaling Peptides and ProteinsMaleMiddle AgedPrognosisBiomarkersDAOA protein, humanIntracellular Signaling Peptides and Proteins

Identifiers

PMID31520071
PMCPMC6744481
OpenAlexW2972396309

What OpenQuestion holds

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LicenceCC BY
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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.