Evidence map›Paper›PMID 29427283›Full record

ArticleNeurotoxicity research2018

Naringenin Decreases α-Synuclein Expression and Neuroinflammation in MPTP-Induced Parkinson's Disease Model in Mice.

Sugumar Mani, Sathiya Sekar, Rajamani Barathidasan, Thamilarasan Manivasagam, Arokiasamy Justin Thenmozhi, Murugan Sevanan, Saravana Babu Chidambaram, Musthafa Mohamed Essa, Gilles J Guillemin, Meena Kishore Sakharkar

RetractedAbstract readRetracted Publication
PubMed Publisher
In one paragraph

Article in Neurotoxicity research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 4% 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, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Brain sciences · 2025
    Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Effect of Flavonoids against Parkinson's Disease.Central nervous system agents in medicinal chemistry · 2024
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Review
  16. The Neuroprotective Potentiality of Flavonoids on Alzheimer's Disease.International journal of molecular sciences · 2022
    Review
  17. Review
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 9 institutions in 4 countries.

Sugumar ManiResearch and Development Centre, Bharathiar University, Coimbatore, TN, 641046, India.
Sathiya SekarDepartment of Biotechnology, Dr. M.G.R. Educational and Research Institute University, Chennai, TN, 600 095, India.
Rajamani BarathidasanCentre for Animal Research, Training and Services, Central Inter-disciplinary Research Facility, Sri Balaji Vidyapeeth, Puducherry, 607403, India.
Thamilarasan ManivasagamDepartment of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India.
Arokiasamy Justin ThenmozhiDepartment of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India.
Murugan SevananDepartment of Biotechnology, Karunya Institute of Technology and Sciences, Karunya Nagar, Coimbatore, TN, 641 114, India. micromurugans@gmail.com.
Saravana Babu ChidambaramDept of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Mysuru, Karnataka, 570015, India. csaravanababu@gmail.com.
Musthafa Mohamed EssaDepartment of Food Science and Nutrition, CAMS, Sultan Qaboos University, Muscat, Oman.
Gilles J GuilleminNeuropharmacology group, Faculty of Medicine and Health Sciences, Deb Bailey MND Research Laboratory, Macquarie University, Sydney, NSW, 2109, Australia.
Meena Kishore SakharkarCollege of Pharmacy and Nutrition, University of Saskatchewan, 107, Wiggins Road, Saskatoon, SK, S7N 5C9, Canada.
Annamalai University · INBharathiar University · INDr. M.G.R. Educational and Research Institute · INJSS Academy of Higher Education and Research · INKarunya University · INMacquarie University · AUSri Balaji Vidyapeeth University · INSultan Qaboos University · OMUniversity of Saskatchewan · CA

Funding

Scientific and Engineering Research Board, DST, Govt of India NO. SB/FT/LS-293/2012
6 · The paper itself

Abstract

The present study was designed to ascertain the role of naringenin (NGN), a citrus fruit flavanone, against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced α-synuclein (SYN) pathology and neuroinflammation in a mouse model. NGN was administered to C57BL/6J mice once a day for 5 consecutive days prior to the MPTP intoxication. On day 5, 40-50 min after the NGN or vehicle administration, MPTP was injected in two divided doses (2× 40 mg/kg, i.p. at 16 h apart). The animals were observed for motor functions 48 h after the first MPTP injection. The animals were then euthanized, the brains collected to analyze SYN pathology, cytokines, and oxidative stress levels in the substantia nigra region. The NGN significantly downregulated SYN and upregulated dopamine transporter (DAT) and tyrosine hydroxylase (TH) protein expressions. It also downregulated tumor necrosis factor-α (TNFα) and interleukin 1β (IL1β) mRNA expressions and improved superoxide dismutase levels. It also reduced glutathione levels when compared to vehicle-treated PD animals. The upregulation of TH corroborates to an increase in dopamine, DOPAC, and homovanillic acid turnover and motor functions with NGN treatment. To summarize, NGN, a dietary flavone, has the potential to counteract MPTP-induced dopaminergic degeneration by regulating SYN pathology, neuroinflammation, and oxidative stress. This warrants the investigation of NGN's potential effects in a genetic model of PD.

Indexed as

Parkinson Disease1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridinealpha-SynucleinAnimalsAnti-Inflammatory AgentsCytokinesDisease Models, AnimalDopamine Plasma Membrane Transport ProteinsEncephalitisFlavanonesGene Expression RegulationGlutathioneLocomotionMaleMiceMice, Inbred C57BL1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridinealpha-SynucleinAnti-Inflammatory AgentsCytokinesDopamine Plasma Membrane Transport ProteinsFlavanonesGlutathionenaringeninNeurotransmitter AgentsNitric OxideRNA, MessengerTyrosine 3-MonooxygenaseMotor functionsMPTPNaringeninNeuroinflammationOxidative stressParkinson’s diseaseα-Synuclein

Identifiers

PMID29427283
OpenAlexW2792189103

What OpenQuestion holds

Textmetadata
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.