Evidence map›Paper›PMID 33843170›Full record

ArticleTurkish journal of medical sciences2021

Lutein/zeaxanthin isomers regulate neurotrophic factors and synaptic plasticity in trained rats

Cemal Orhan, Füsun Erten, Beşir Er, Mehmet Tuzcu, Nurhan Şahin, Öznur Ece Durmaz Kurşun, Vijaya Juturu, Kazim Şahin

Open access · bronzeAbstract read
In one paragraph

Article in Turkish journal of medical sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

9 citing papers in PubMed, 15 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Effects of Integrated Extracts ofAntioxidants (Basel, Switzerland) · 2025
    Article
  5. Review
  6. Article
  7. Review
  8. Natural Products as Modulators of Nrf2 Signaling Pathway in Neuroprotection.International journal of molecular sciences · 2023
    Review
  9. 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.

Cemal OrhanDepartment of Animal Nutrition, Faculty of Veterinary Medicine, Fırat University, Elazığ, TurkeyORCID 0000-0003-4138-7689
Füsun ErtenDepartment of Veterinary Science, Pertek Sakine Genç Vocational School, Munzur University, Tunceli, TurkeyORCID 0000-0003-1657-7253
Beşir ErDepartment of Biology, Faculty of Science, Fırat University, Elazığ, TurkeyORCID 0000-0002-9583-2218
Mehmet TuzcuDepartment of Biology, Faculty of Science, Fırat University, Elazığ, TurkeyORCID 0000-0002-1329-3143
Nurhan ŞahinDepartment of Animal Nutrition, Faculty of Veterinary Medicine, Fırat University, Elazığ, TurkeyORCID 0000-0001-9487-1154
Öznur Ece Durmaz KurşunDepartment of Pharmacy Services, Vocational School of Kovancılar, Fırat University, Elazığ, TurkeyORCID 0000-0002-3400-7468
Vijaya JuturuResearch and Development, OmniActive Health Technologies Inc., Morristown, NJ, USAORCID 0000-0002-7397-715X
Kazim ŞahinDepartment of Animal Nutrition, Faculty of Veterinary Medicine, Fırat University, Elazığ, TurkeyORCID 0000-0001-9542-5244
Fırat University · TRMunzur University · TROmniActive Health Technologies (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background/aim: This study was conducted to elucidate the effects of lutein/zeaxanthin isomers (L/Zi) on lipid metabolism, oxidative stress, NF-κB/Nrf2 pathways, and synaptic plasticity proteins in trained rats. Materials and methods: Wistar rats were distributed into four groups: 1) control, 2) L/Zi: rats received L/Zi at the dose of 100 mg/kg by oral gavage, 3) exercise, 4) exercise+L/Zi: rats exercised and received L/Zi (100 mg/kg) by oral gavage. The duration of the study was eight weeks. Results: Exercise combined with L/Zi reduced lipid peroxidation and improved antioxidant enzyme activities of muscle and cerebral cortex in rats (p < 0.001). In the Exercise + L/Zi group, muscle and cerebral cortex Nrf2 and HO-1 levels increased, while NF-κB levels decreased (p <0.001). Also, L/Zi improved BDNF, synapsin I, SYP, and GAP-43 levels of the cerebral cortex of trained rats (p < 0.001). The highest levels of BDNF, synapsin SYP, and GAP-43 in the cerebral cortex were determined in the Exercise+L/Zi group. Conclusion: These results suggested that exercise combined with L/Zi supplementation might be effective to reduce neurodegeneration via improving neurotrophic factors and synaptic proteins, and oxidative capacity in the cerebral cortex.

Indexed as

Oxidative StressPhysical Conditioning, AnimalAnimalsAntioxidantsBrain-Derived Neurotrophic FactorGAP-43 ProteinLuteinNeuronal PlasticityNF-E2-Related Factor 2NF-kappa BRatsRats, WistarZeaxanthinsAntioxidantsBrain-Derived Neurotrophic FactorGAP-43 ProteinLuteinNF-E2-Related Factor 2NF-kappa BZeaxanthinsexerciseLuteinoxidative stresssynaptic proteinszeaxanthin

Identifiers

PMID33843170
PMCPMC8573940
OpenAlexW3154342571

What OpenQuestion holds

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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.