Evidence map›Paper›PMID 29039078›Full record

ArticleMetabolic brain disease2018

The neuroprotective effects of hydro-alcoholic extract of olive (Olea europaea L.) leaf on rotenone-induced Parkinson's disease in rat.

Maryam Sarbishegi, Enam Alhagh Charkhat Gorgich, Ozra Khajavi, Gholamreza Komeili, Saeedeh Salimi

Abstract read
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In one paragraph

Article in Metabolic brain disease, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.3field-weighted citation impact, top 23% 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

22 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Pre-clinical Aspects and Contemporary Treatments of Parkinson's Disease.CNS & neurological disorders drug targets · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Protective Effects of Currants (International journal of molecular sciences · 2022
    Article
  11. Article
  12. Article
  13. Protective effects of olive leaf extract against reproductive toxicity of the lead acetate in rats.Environmental science and pollution research international · 2021
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Dietary Antioxidants and Parkinson's Disease.Antioxidants (Basel, Switzerland) · 2020
    Review
  20. 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

5 authors at 1 institution in 1 country.

Maryam SarbishegiCellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, IR, Iran. msarbishegi@yahoo.co.in.
Enam Alhagh Charkhat GorgichDepartment of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, IR, Iran. Enam.gorgich@yahoo.com.
Ozra KhajaviDepartment of Anatomy, School of Medicine, Zahedan University of Medical Sciences, Zahedan, IR, Iran.
Gholamreza KomeiliDepartment of Physiology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, IR, Iran.
Saeedeh SalimiCellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, IR, Iran.
Zahedan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parkinson's disease (PD) is an age-related disease in which dopaminergic neurons in the nigrostriatal pathway are destroyed, resulting in movement and behavioral problems. Oxidative stress and the generation of reactive oxygen species play key roles in neurodegenerative diseases, such as PD. Rotenone (ROT) is a common pesticide that induces oxidative stress. Olive leaves extract (OLE) has antioxidant and neuroprotective effects. Thus, the aim of this study was to investigate the neuroprotective effects of OLE on ROT-induced oxidative stress in the midbrain of a rat model of PD. Ninety-six Wistar rats were randomly divided into the following 6 groups (n = 16 rats/group): Control, Sham, ROT, and 3 ROT + OLE (75, 150, and 300 mg/kg/daily) groups. ROT (2.5 mg/kg/48 h) was injected subcutaneously, and vehicle or OLE was orally administered for 30 days. The animals were then sacrificed, and their brains were removed. Biochemical measures, including the levels of catalase (CAT), glutathione peroxidase (GPx), superoxide dismutase (SOD), and malondialdehyde (MDA), and the number of tyrosine hydroxylase (TH)-positive neurons were determined, and behavioral (rotarod and hanging) tests were conducted. The balance and muscle strength of the OLE (150 and 300 mg/kg)-treated groups were significantly improved. Treatment with OLE prevented the increases in the levels of MDA, significantly improved the SOD, CAT, and GPx levels in the midbrain, and prevented the depletion of the TH-positive neurons. These findings suggested that OLE has neuroprotective properties and that it might be useful for preventing the death of dopaminergic neurons in patients with PD.

Indexed as

AnimalsAntioxidantsDisease Models, AnimalDopaminergic NeuronsLipid PeroxidationMaleNeuroprotective AgentsOleaOxidative StressParkinson Disease, SecondaryPlant ExtractsPlant LeavesRats, WistarReactive Oxygen SpeciesRotenoneAntioxidantsNeuroprotective AgentsPlant ExtractsReactive Oxygen SpeciesRotenoneOlive leaves extractOxidative stressParkinson’s diseaseRotenone

Identifiers

PMID29039078
OpenAlexW2766224192

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.