Evidence map›Paper›PMID 34770940›Full record

ReviewMolecules (Basel, Switzerland)2021

Huperzine A and Its Neuroprotective Molecular Signaling in Alzheimer's Disease.

María Jesús Friedli, Nibaldo C Inestrosa

Open access · goldAbstract readReview
In one paragraph

Review in Molecules (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 3 pooled it
10.5field-weighted citation impact, top 1% 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

58 citing papers in PubMed, 3 syntheses or guidelines pooled it, 108 citations in OpenAlex.

  1. Pooled it
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  6. Phytochemicals with potential NMDAR-inhibitory activities: a review of neuroprotective mechanisms against excitotoxicity.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2026
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  9. Natural Molecules for Brain Health and Resilience.International journal of molecular sciences · 2026
    Review
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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

2 authors at 2 institutions in 1 country.

María Jesús FriedliCentro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas 6210427, Chile.ORCID 0000-0002-3337-432X
Nibaldo C InestrosaCentro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas 6210427, Chile.
Pontificia Universidad Católica de Chile · CLUniversidad de Magallanes · CL

Funding

Agencia Nacional de Investigación y Desarrollo AFB-170005
6 · The paper itself

Abstract

Huperzine A (HupA), an alkaloid found in the club moss

Indexed as

AcetylcholinesteraseAlkaloidsAlzheimer DiseaseAnimalsCholinesterase InhibitorsHumansHuperziaMolecular StructureNeuroprotective AgentsSesquiterpenesSignal TransductionAcetylcholinesteraseAlkaloidsCholinesterase Inhibitorshuperzine ANeuroprotective AgentsSesquiterpenesAChEIAlzheimer’s diseasehuperzineneurodegenerative diseasesneuroinflammationtherapeutic potential

Identifiers

PMID34770940
PMCPMC8587556
OpenAlexW3208309183

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.