Evidence mapPaperPMID 37252248Full record

ArticleFrontiers in nutrition2023

Serum vitamin C levels and risk of non-alcoholic fatty liver disease: results from a cross-sectional study and Mendelian randomization analysis.

Hui Wu, Jiang-Long Guo, Jing-Jiong Yao, Jia-Jun Yu, Run-Yu Xia, Wei-Qing Huang, Xuan Tang, Guang-Ming He

Open access · goldAbstract read
In one paragraph

Article in Frontiers in nutrition, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. 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 2 institutions in 1 country.

Hui WuDepartment of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Jiang-Long GuoDepartment of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Jing-Jiong YaoDepartment of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Jia-Jun YuDepartment of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Run-Yu XiaDepartment of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Wei-Qing HuangDepartment of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Xuan TangDepartment of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Guang-Ming HeDepartment of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Guangzhou Medical University · CNSecond Affiliated Hospital of Guangzhou Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and aims: Vitamin C, as an antioxidant, may play a role in the treatment of NAFLD. This research aimed to investigate the association of serum vitamin C levels with the risk of NAFLD and to further examine the causal relationship by Mendelian randomization (MR) method. Methods: The cross-sectional study selected 5,578 participants of the National Health and Nutrition Examination Survey (NHANES), 2005-2006 and 2017-2018. The association of serum vitamin C levels with NAFLD risk was evaluated under a multivariable logistic regression model. A two-sample MR study, using genetic data from large-scale genome-wide association studies (GWAS) of serum vitamin C levels (52,014 individuals) and NAFLD (primary analysis: 1,483 cases /17,781 controls; secondary analysis: 1,908 cases/340,591 controls), was conducted to infer causality between them. The inverse-variance-weighted (IVW) was applied as the main method of MR analysis. A series of sensitivity analyzes were used to evaluate the pleiotropy. Results: In the cross-sectional study, results showed that Tertile 3 group (Tertile 3: ≥1.06 mg/dl) had a significantly lower risk (OR = 0.59, 95% CI: 0.48 ~ 0.74, Conclusion: Our MR study did not support a causal association between serum vitamin C levels and NAFLD risk. Further studies with greater cases are warranted to confirm our findings.

Indexed as

cross-sectional studyMendelian randomizationNAFLDNHANESvitamin C

Identifiers

PMID37252248
PMCPMC10213341
OpenAlexW4378746267

What Socratic holds

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LicenceCC BY
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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 Socratic graph.