Evidence map›Paper›PMID 37484231›Full record

ArticleHeliyon2023

The dosage of curcumin to alleviate movement symptoms in a 6-hydroxydopamine-induced Parkinson's disease rat model.

Xiaoyu Liu, Hao Zhang, Chuanfen Li, Zhibin Chen, Qian Gao, Muxuan Han, Feng Zhao, Dan Chen, Qiuyue Chen, Minghui Hu and 3 more

Open access · goldAbstract read
In one paragraph

Article in Heliyon, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
2.1field-weighted citation impact, top 13% 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, 2 syntheses or guidelines pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Article
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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

13 authors at 2 institutions in 1 country.

Xiaoyu LiuExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Hao ZhangExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Chuanfen LiCollege of Physical Education, Shandong Normal University, Jinan, China.
Zhibin ChenExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Qian GaoExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Muxuan HanExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Feng ZhaoExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Dan ChenShandong University of Traditional Chinese Medicine, Jinan, China.
Qiuyue ChenExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Minghui HuExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Zifa LiExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Sheng WeiExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Xiwen GengExperimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China.
Shandong University of Traditional Chinese Medicine · CNShandong Normal University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Curcumin is a natural compound with extensive pharmacological effects. This research is to verify the optimal dose and administration duration efficacy of curcumin in alleviating the movement symptoms of Parkinson's disease (PD). Methods: Wistar rats were divided into six groups including control, model, levodopa treatment and low/middle/high (40/80/160 mg/kg/d) curcumin treatment groups. After stereotactic brain injection of 6-hydroxydopamine (6-OHDA), curcumin was given by intragastric administration for 2 weeks. To evaluate the drug effect, the rats received behavioral tests including apomorphine (APO)-induced rotation test, rotarod test and open field test. Then the rats were sacrificed and the brain slices including substantia nigra pars compacta (SNc) were used for immunofluorescence staining. Results: After 6-OHDA injection, the model group showed typical movement symptoms including the severe APO-induced rotation to the healthy side, decreased latency in the rotarod with constant or accelerative mode, and decreased total distance and average speed in the open field test. In the results of immunofluorescence staining, the 6-OHDA induced a severe damage of dopaminergic neurons in SNc. The 160 mg/kg/d treatment of curcumin to intervene for 2 weeks alleviated most of the behavioral disorders but the 40/80 mg/kg/d treatment showed limitations. Then, we compared the effect of 1 week intervention to the 2 weeks with 160 mg/kg/d treatment of curcumin to intervene and results indicated that the treatment of 2 weeks could better alleviate the symptoms. Conclusions: Curcumin alleviated 6-OHDA-induced movement symptoms in a PD rat model. Additionally, the effect of curcumin against PD indicated dose and duration dependent and the intervention of 160 mg/kg/d for 2 weeks showed optimally therapeutic effect.

Indexed as

6-HydroxydopamineBehavioral testsCurcuminMovement symptomsParkinson's diseaseSubstantia nigra pars compacta

Identifiers

PMID37484231
PMCPMC10360947
OpenAlexW4379741435

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.