Evidence map›Paper›PMID 33762656›Full record

ArticleScientific reports2021

Detrimental effects of long-term elevated serum uric acid on cognitive function in rats.

Tian Tian, Xi-Run Liu, Ting-Ting Li, Zhi-Chao Nie, Shuang-Jing Li, Yan Tang, Cong-Wei Gu, Wang-Dong Xu, Hong Jia

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
3.3field-weighted citation impact, top 7% 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, 2 syntheses or guidelines pooled it, 37 citations in OpenAlex.

  1. Association between higher serum uric acid levels and cognitive function: a systematic review and meta-analysis.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
    Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. A novelHeliyon · 2024
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  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

9 authors at 2 institutions in 1 country.

Tian Tian *School of Public Health, Southwest Medical University, Luzhou, 646000, China.
Xi-Run Liu *Clinical Drug Trial Institution, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.
Ting-Ting LiSchool of Public Health, Southwest Medical University, Luzhou, 646000, China.
Zhi-Chao NieSchool of Public Health, Southwest Medical University, Luzhou, 646000, China.
Shuang-Jing LiSchool of Public Health, Southwest Medical University, Luzhou, 646000, China.
Yan TangSchool of Public Health, Southwest Medical University, Luzhou, 646000, China.
Cong-Wei GuLaboratory Animal Centre, Southwest Medical University, Luzhou, 646000, China.
Wang-Dong XuSchool of Public Health, Southwest Medical University, Luzhou, 646000, China.
Hong JiaSchool of Public Health, Southwest Medical University, Luzhou, 646000, China. jhong_lz@163.com.
Southwest Medical University · CNAffiliated Hospital of Southwest Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Uric acid is a powerful antioxidant. However, its elevated levels in association with cardiovascular diseases predispose individuals to cognitive impairment. Uric acid's effects on cognition may be related to its concentration and exposure period. We aimed to explore the effects of long-term elevated serum uric acid on cognitive function and hippocampus. Rats were randomly divided into four groups: NC, M1, M2 and M3 groups. Hyperuricemia was established in rats at week 6 and maintained until week 48 in groups M1, M2 and M3. The rats' spatial learning and memory abilities were assessed by the Morris Water Maze test at weeks 0, 6, 16, 32, and 48. After week 48, we observed pathological changes in right hippocampal CA1 and CA3 regions, and measured levels of oxidative stress, inflammatory cytokines, and β-amyloid peptide of left hippocampus. Starting from week 6, the serum uric acid level of M3 group > M2 group, the serum uric acid level of M2 group > M1 group, and the serum uric acid level of M1 group > NC group. The rats in M3 and M2 groups had longer escape latencies, longer mean distances to the platform, more extensive pathological damage, stronger inflammation response, higher oxidative stress and β-amyloid peptide levels than those in NC group. No significant differences were observed between M1 and NC groups. In addition, we also found that oxidative stress significantly correlated with tumour necrosis factor-α and β-amyloid peptide. Long-term elevated serum uric acid was significantly associated with cognitive impairment risk. Oxidative stress, tumour necrosis factor-α and β-amyloid peptide may mediate the pathogenesis of the cognitive impairment induced by uric acid. The detrimental effect of elevated serum uric acid on cognitive function was probably expressed when the serum uric acid concentration reached a certain level.

Indexed as

AnimalsBiomarkersCognitionCognitive DysfunctionCytokinesDisease Models, AnimalDisease SusceptibilityHyperuricemiaImmunohistochemistryMaleMaze LearningOxidative StressRatsSymptom AssessmentUric AcidBiomarkersCytokinesUric Acid

Identifiers

PMID33762656
PMCPMC7991666
OpenAlexW3136587864

What OpenQuestion holds

Textmetadata
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.