Evidence map›Paper›PMID 33467040›Full record

ReviewAntioxidants (Basel, Switzerland)2021

The Neuromelanin Paradox and Its Dual Role in Oxidative Stress and Neurodegeneration.

Alexandra Moreno-García, Alejandra Kun, Miguel Calero, Olga Calero

Open access · goldAbstract readReview
In one paragraph

Review in Antioxidants (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

36 citing papers in PubMed, 54 citations in OpenAlex.

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  16. The Skin-Brain Axis: From UV and Pigmentation to Behaviour Modulation.International journal of molecular sciences · 2024
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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

4 authors at 2 institutions in 2 countries.

Alexandra Moreno-GarcíaChronic Disease Programme, Instituto de Salud Carlos III, 28029 Madrid, Spain.ORCID 0000-0003-2971-7374
Alejandra KunBiochemistry Section, Science School, Universidad de la República, 11400 Montevideo, Uruguay.
Miguel CaleroChronic Disease Programme, Instituto de Salud Carlos III, 28029 Madrid, Spain.ORCID 0000-0001-5366-3324
Olga CaleroChronic Disease Programme, Instituto de Salud Carlos III, 28029 Madrid, Spain.ORCID 0000-0001-9698-8735
Instituto de Salud Carlos III · ESUniversidad de la República de Uruguay · UY

Funding

Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain. G509Spanish Ministry of Economy, Industry and Competitiveness (MINECO) SA1F2016-78603-R
6 · The paper itself

Abstract

Aging is associated with an increasing dysfunction of key brain homeostasis mechanisms and represents the main risk factor across most neurodegenerative disorders. However, the degree of dysregulation and the affectation of specific pathways set apart normal aging from neurodegenerative disorders. In particular, the neuronal metabolism of catecholaminergic neurotransmitters appears to be a specifically sensitive pathway that is affected in different neurodegenerations. In humans, catecholaminergic neurons are characterized by an age-related accumulation of neuromelanin (NM), rendering the soma of the neurons black. This intracellular NM appears to serve as a very efficient quencher for toxic molecules. However, when a neuron degenerates, NM is released together with its load (many undegraded cellular components, transition metals, lipids, xenobiotics) contributing to initiate and worsen an eventual immune response, exacerbating the oxidative stress, ultimately leading to the neurodegenerative process. This review focuses on the analysis of the role of NM in normal aging and neurodegeneration related to its capabilities as an antioxidant and scavenging of harmful molecules, versus its involvement in oxidative stress and aberrant immune response, depending on NM saturation state and its extracellular release.

Indexed as

immune responseneurodegenerationneuromelanin (NM)oxidative stressreactive oxygen species (ROS)

Identifiers

PMID33467040
PMCPMC7829956
OpenAlexW3121632458

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.