Evidence map›Paper›PMID 35689524›Full record

ArticleIUBMB life2023

Neuromelanins in brain aging and Parkinson's disease: synthesis, structure, neuroinflammatory, and neurodegenerative role.

Fabio A Zucca, Andrea Capucciati, Chiara Bellei, Michał Sarna, Tadeusz Sarna, Enrico Monzani, Luigi Casella, Luigi Zecca

Open access · hybridAbstract read
In one paragraph

Article in IUBMB life, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
6.7field-weighted citation impact, top 2% 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

34 citing papers in PubMed, 64 citations in OpenAlex.

  1. Review
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  4. PET imaging of alpha-synuclein: from radiotracer design through in vitro and in vivo translation.European journal of nuclear medicine and molecular imaging · 2026
    Review
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  9. Review
  10. Article
  11. Article
  12. Abnormal iron metabolism in the zona incerta in Parkinson's disease mice.Journal of neural transmission (Vienna, Austria : 1996) · 2025
    Article
  13. Review
  14. Article
  15. Levodopa treatment: impacts and mechanisms throughout Parkinson's disease progression.Journal of neural transmission (Vienna, Austria : 1996) · 2025
    Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

8 authors at 3 institutions in 2 countries.

Fabio A ZuccaInstitute of Biomedical Technologies, National Research Council of Italy, Segrate (Milan), Italy.ORCID 0000-0003-1230-1129
Andrea CapucciatiDepartment of Chemistry, University of Pavia, Pavia, Italy.
Chiara BelleiInstitute of Biomedical Technologies, National Research Council of Italy, Segrate (Milan), Italy.
Michał SarnaDepartment of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.
Tadeusz SarnaDepartment of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.
Enrico MonzaniDepartment of Chemistry, University of Pavia, Pavia, Italy.
Luigi CasellaDepartment of Chemistry, University of Pavia, Pavia, Italy.
Luigi ZeccaInstitute of Biomedical Technologies, National Research Council of Italy, Segrate (Milan), Italy.ORCID 0000-0002-7409-6653
Institute of Biomedical Technologies · ITUniversity of Pavia · ITJagiellonian University · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neuromelanins are compounds accumulating in neurons of human and animal brain during aging, with neurons of substantia nigra and locus coeruleus having the highest levels of neuromelanins. These compounds have melanic, lipid, peptide, and inorganic components and are contained inside special autolysosomes. Neuromelanins can participate in neuroprotective or toxic processes occurring in Parkinson's disease according to cellular environment. Their synthesis depends on the concentration of cytosolic catechols and is a protective process since it prevents the toxic accumulation of catechols-derived reactive compounds. Neuromelanins can be neuroprotective also by binding reactive/toxic metals to produce stable and non-toxic complexes. Extraneuronal neuromelanin released by dying dopamine neurons in Parkinson's disease activates microglia which generate reactive oxygen species, reactive nitrogen species, and proinflammatory molecules, thus producing still neuroinflammation and neuronal death. Synthetic neuromelanins have been prepared with melanic, protein structure, and metal content closely mimicking the natural brain pigment, and these models are also able to activate microglia. Neuromelanins have different structure, synthesis, cellular/subcellular distribution, and role than melanins of hair, skin, and other tissues. The main common aspect between brain neuromelanin and peripheral melanin is the presence of eumelanin and/or pheomelanin moieties in their structure.

Indexed as

Parkinson DiseaseAnimalsBrainDopaminergic NeuronsHumansMelaninsNeuroinflammatory DiseasesMelaninsneuromelaninironmelaninsmicroglianeuroinflammation/neurodegenerationneuromelaninsParkinson's diseasesynthetic neuromelanins

Identifiers

PMID35689524
PMCPMC10084223
OpenAlexW4282918432

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.