Evidence map›Paper›PMID 35236875›Full record

ArticleScientific reports2022

Metabolites of soil microorganisms modulate amyloid β production in Alzheimer's neurons.

Takayuki Kondo, Tsuyoshi Yamamoto, Kaoru Okayama, Hideki Narumi, Haruhisa Inoue

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 43% 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

2 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. 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 2 institutions in 1 country.

Takayuki KondoCenter for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan.
Tsuyoshi YamamotoMicroBiopharm Japan Co., Ltd. JP, Nakagawara, Kiyosu, Aichi, 452-0915, Japan.
Kaoru OkayamaMicroBiopharm Japan Co., Ltd. JP, Nakagawara, Kiyosu, Aichi, 452-0915, Japan.
Hideki NarumiMicroBiopharm Japan Co., Ltd. JP, Nakagawara, Kiyosu, Aichi, 452-0915, Japan.
Haruhisa InoueCenter for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan. haruhisa@cira.kyoto-u.ac.jp.
Kyoto University Hospital · JPRIKEN BioResource Research Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microbial flora is investigated to be related with neuropathological conditions in Alzheimer's disease (AD), and is attracting attention as a drug discovery resource. However, the relevance between the soil microbiota and the pathological condition has not been fully clarified due to the difficulty in isolation culture and the component complexity. In this study, we established a library of secondly metabolites produced in microorganism to investigate the potential effect of microorganisms on the production of amyloid β (Aβ), one of the most representative pathogens of AD. We conducted a library screening to quantify Aβ and neuronal toxicity by using cortical neurons from human induced pluripotent stem cells (iPSCs) of AD patients after adding secondary metabolites. Screening results and following assessment of dose-dependency identified Verrucarin A, produced in Myrothecium spp., showed 80% decrease in Aβ production. Furthermore, addition of Mer-A2026A, produced in Streptomyces pactum, showed increase in Aβ42/40 ratio at the low concentration, and decrease in Aβ production at the higher concentration. As a result, established library and iPSC-based phenotyping assay clarified a direct link between Aβ production and soil microorganisms. These results suggest that Aβ-microorganism interaction may provide insight into the AD pathophysiology with potential therapeutics.

Indexed as

Alzheimer DiseaseInduced Pluripotent Stem CellsAmyloid beta-PeptidesHumansNeuronsSoilAmyloid beta-PeptidesSoil

Identifiers

PMID35236875
PMCPMC8891331
OpenAlexW4214915987

What OpenQuestion holds

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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.