Evidence map›Paper›PMID 21503677›Full record

ArticleDigestive diseases and sciences2011

Serum vitamin D concentrations and unexplained elevation in ALT among US adults.

Suthat Liangpunsakul, Naga Chalasani

Abstract read
In one paragraph

Article in Digestive diseases and sciences, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

33 citing papers in PubMed, 73 citations in OpenAlex.

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  20. Micronutrients in Nonalcoholic Fatty Liver Disease Pathogenesis.Cellular and molecular gastroenterology and hepatology · 2018
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

Suthat LiangpunsakulDivision of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, 550 N. University Blvd, UH 4100, Indianapolis, IN 46202-5124, USA. sliangpu@iupui.edu
Naga Chalasani
Richard L. Roudebush VA Medical Center · USUniversity School · US

Funding

Patient-Oriented Research of Liver DiseaseK24DK069290 · NIDDK · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI CHALASANI, NAGA P · 2005 to 2014
$1.4M
Effect of ethanol on Kupffer cell/hepatocyte interactions and lipid metabolismK08AA016570 · NIAAA · INDIANA UNIVERSITY INDIANAPOLIS · PI LIANGPUNSAKUL, SUTHAT · 2008 to 2012
$659k
NIAAA NIH HHS K08 AA016570NIDDK NIH HHS K24 DK069290NIDDK NIH HHS K24DK069290
6 · The paper itself

Abstract

backgroundLow serum levels of vitamin D are associated with metabolic syndrome. Participants in NHANES III with unexplained elevation in ALT levels have high prevalence of metabolic syndrome. We hypothesized that the serum concentrations of vitamin D were inversely associated with unexplained elevation in ALT.

methodsA total of 6,826 fasting subjects underwent morning physical examination and met the inclusion and exclusion criteria. From these participants, we have constructed cases with unexplained elevation in ALT (n = 308) and compared their serum vitamin D concentrations to matched controls with normal ALT (N = 979). We examined the prevalence of unexplained elevation in ALT level across different quartiles of vitamin D levels.

resultsParticipants with unexplained elevation in ALT had significantly lower serum vitamin D levels compared to controls (61.8 ± 26.0 nmol/l vs. 66.8 ± 27.1 nmol/l, P < 0.01). The unadjusted prevalence of unexplained elevation in ALT in patients with highest to lowest quartiles of serum vitamin D levels were 21.4, 21.4, 25.6, and 31.5%, respectively. Compared to lowest quartile, patients with top two quartiles of serum vitamin D levels had significantly lower prevalence of unexplained elevation in ALT (OR, 95% CI for highest quartile 0.62 [0.43-0.89] and for third quartile 0.61 [0.42-0.86]). This relationship persisted even after controlling for metabolic syndrome, insulin resistance, and serum triglycerides.

conclusionsThis study suggests a significant inverse relationship between serum vitamin D levels and unexplained elevation in ALT. Further studies are needed to confirm this observation and to understand the basis for and implications of this observation.

Indexed as

Nutrition SurveysAdultAlanine TransaminaseBody Mass IndexFemaleHumansInsulin ResistanceMaleMetabolic SyndromeMiddle AgedPrevalenceTriglyceridesUnited StatesVitamin DAlanine TransaminaseTriglyceridesVitamin D

Identifiers

PMID21503677
PMCPMC3644216
OpenAlexW2104184919

What OpenQuestion holds

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Registered trials

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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.