Evidence map›Paper›PMID 33829974›Full record

ArticleCurrent neuropharmacology2021

C-Phycocyanin-derived Phycocyanobilin as a Potential Nutraceutical Approach for Major Neurodegenerative Disorders and COVID-19- induced Damage to the Nervous System.

Giselle Pentón-Rol, Javier Marín-Prida, Mark F McCarty

Open access · greenAbstract read
In one paragraph

Article in Current neuropharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.6field-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

33 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Article
  3. Frontiers in veterinary science · 2026
    Article
  4. Review
  5. Neuroprotective and Antioxidant Study ofCurrent aging science · 2026
    Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Phycocyanin alleviates alcohol-induced testicular injury in male Wistar rats.Clinical and experimental reproductive medicine · 2024
    Article
  16. Review
  17. Review
  18. Review
  19. Review
  20. COVID-19 and the Nervous System from a Cuban Experience.Behavioral sciences (Basel, Switzerland) · 2023
    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

3 authors at 3 institutions in 2 countries.

Giselle Pentón-RolCentre for Genetic Engineering and Biotechnology, Ave. 31 e/158 y 190, Playa. PO Box: 6162, Havana, Cuba.
Javier Marín-PridaCentre for Research and Biological Evaluations, Institute of Pharmacy and Food, University of Havana, Ave. 23 e/ 214 y 222, La Lisa. PO Box: 430, Havana, Cuba.
Mark F McCartyCatalytic Longevity Foundation, 811 B Nahant Ct. San Diego, CA 92019, United States.
Catalytic Longevity · USCentro de Ingeniería Genética y Biotecnología · CUUniversity of Havana · CU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The edible cyanobacterium Spirulina platensis and its chief biliprotein C-Phycocyanin have shown protective activity in animal models of diverse human health diseases, often reflecting antioxidant and anti-inflammatory effects. The beneficial effects of C-Phycocyanin seem likely to be primarily attributable to its covalently attached chromophore Phycocyanobilin (PCB). Within cells, biliverdin is generated from free heme and it is subsequently reduced to bilirubin. Although bilirubin can function as an oxidant scavenger, its potent antioxidant activity reflects its ability to inactivate some isoforms of NADPH oxidase. Free bilirubin can also function as an agonist for the aryl hydrocarbon receptor (AhR); this may explain its ability to promote protective Treg activity in cellular and rodent models of inflammatory disease. AhR agonists also promote transcription of the gene coding for Nrf-2, and hence can up-regulate phase 2 induction of antioxidant enzymes, such as HO-1. Hence, it is proposed that C-Phycocyanin/PCB chiefly exert their protective effects via inhibition of NADPH oxidase activity, as well as by AhR agonism that both induces Treg activity and up-regulates phase 2 induction. This simple model may explain their potent antioxidant/antiinflammatory effects. Additionally, PCB might mimic biliverdin in activating anti-inflammatory signaling mediated by biliverdin reductase. This essay reviews recent research in which CPhycocyanin and/or PCB, administered orally, parenterally, or intranasally, have achieved marked protective effects in rodent and cell culture models of Ischemic Stroke and Multiple Sclerosis, and suggests that these agents may likewise be protective for Alzheimer's disease, Parkinson's disease, and in COVID-19 and its neurological complications.

Indexed as

COVID-19Neurodegenerative DiseasesAnimalsDietary SupplementsHumansPhycobilinsPhycocyaninSARS-CoV-2PhycobilinsPhycocyaninphycocyanobilinAlzheimer’s diseaseanti-inflammatoryantioxidantCOVID-19.C-Phycocyaninischemic strokeMultiple SclerosisParkinson’s diseasePhycocyanobilinregulatory T cells

Identifiers

PMID33829974
PMCPMC9185767
OpenAlexW3140179711

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.