Evidence map›Paper›PMID 33257903›Full record

ArticleInternational journal of endocrinology and metabolism2020

Effects of Vitamin D Supplementation in Patients with Nonalcoholic Fatty Liver Disease: A Systematic Review and Meta-Analysis.

Yali Wei, Shuli Wang, Yan Meng, Qingtao Yu, Qian Wang, Hongzhao Xu, Huacai Yuan, Xiaoxu Li, Liyong Chen

Open access · diamondAbstract read
In one paragraph

Article in International journal of endocrinology and metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
2.8field-weighted citation impact, top 8% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. The effects of low-fat dairy products fortified with 1500 IU vitamin DJournal of health, population, and nutrition · 2023
    Trial
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  16. Vitamin D Review: The Low Hanging Fruit for Human Health.Journal of nutrition and metabolism · 2021
    Review
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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

9 authors at 3 institutions in 1 country.

Yali Wei *Institute of Nutrition and Food Hygiene, School of Public Health, Shandong University, Jinan, China.
Shuli Wang *Department of Medical Imaging, Shandong Provincial Hospital Affiliated of Shandong University, Jinan, China.
Yan MengDepartment of Nutrition, Shandong Provincial Hospital Affiliated of Shandong University, Jinan, China.
Qingtao YuDepartment of Endocrinology, The People Hospital of Huaiyin Jinan, Jinan, China.
Qian WangDepartment of Nutrition, Shandong Provincial Hospital Affiliated of Shandong University, Jinan, China.
Hongzhao XuInstitute of Nutrition and Food Hygiene, School of Public Health, Shandong University, Jinan, China.
Huacai YuanInstitute of Nutrition and Food Hygiene, School of Public Health, Shandong University, Jinan, China.
Xiaoxu LiDepartment of Nutrition, Shandong Provincial Hospital Affiliated of Shandong University, Jinan, China.
Liyong ChenDepartment of Nutrition, Shandong Provincial Hospital Affiliated of Shandong University, Jinan, China.
Shandong University · CNShandong Provincial Hospital · CNFourth People’s Hospital of Jinan · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextVitamin D (VD) has been found to play a key role in nonalcoholic fatty liver disease (NAFLD). This meta-analysis explored the effects of VD supplementation in patients with NAFLD.

methodsThe PubMed, EMBASE, and the Cochrane Library databases were searched to find randomized control trials (RCTs) that measured the changes between the VD supplement group and the control group until May 2019. Standard mean difference (SMD) with 95% confidence intervals (CI) was calculated when data units were different, otherwise weighted mean difference (WMD) and 95% CI was calculated. Heterogeneity was assessed using the I2 statistic.

resultsEight RCTs with 624 individuals were extracted. The main indicators, including serum alanine aminotransferase (WMD = -0.052; 95% CI: -3.740, 3.636; P = 0.978) and aspartate aminotransferase concentrations (WMD = -0.479; 95% CI: -2.791, 1.833; P = 0.685) were not significantly different between the intervention and placebo groups. In addition, no significant intergroup difference was observed in the following secondary indicators: fasting blood glucose (WMD = 0.466; 95% CI: -5.313, -10.879; P = 0.061), homeostasis model assessment (WMD = 0.380, 95% CI: -0.162, 0.923; P = 0.169), serum insulin concentration (WMD = 0.760; 95% CI: -0.532, 2.052; P = 0.249), high-density lipoprotein (WMD = -0.012; 95% CI: -0.188, 0.164; P = 0.891), and low-density lipoprotein (WMD = -0.115; 95% CI: -3.849, -3.620; P = 0.952).

conclusionsThe results indicate that VD supplementation does not improve liver enzymes, insulin resistance, glucose metabolism parameters, and lipid levels in patients with NAFLD.

Indexed as

Meta-AnalysisNonalcoholic Fatty Liver DiseaseSupplementationVitamin D

Identifiers

PMID33257903
PMCPMC7695226
OpenAlexW3040815775

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.