Evidence map›Paper›PMID 25890641›Full record

ArticleJournal of the neurological sciences2015

Vitamin D receptor gene polymorphisms and Parkinson's disease in a population with high ultraviolet radiation exposure.

Nicole M Gatto, Janet S Sinsheimer, Myles Cockburn, Loraine A Escobedo, Yvette Bordelon, Beate Ritz

Open access · greenAbstract read
In one paragraph

Article in Journal of the neurological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.0field-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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Nicole M GattoCenter for Nutrition, Healthy Lifestyles & Disease Prevention, School of Public Health, Loma Linda University, United States. Electronic address: ngatto@llu.edu.
Janet S SinsheimerDepartment of Human Genetics, UCLA, United States; Department of Biomathematics, UCLA, United States; Department of Biostatistics, UCLA, United States.
Myles CockburnDepartment of Preventive Medicine, University of Southern California, United States.
Loraine A EscobedoDepartment of Preventive Medicine, University of Southern California, United States.
Yvette BordelonDepartment of Neurology, UCLA, United States.
Beate RitzDepartment of Epidemiology, UCLA, United States; Department of Environmental Health Sciences, UCLA, United States; Department of Neurology, UCLA, United States.
UCLA Health · USUniversity of Southern California · USLoma Linda University · US

Funding

Training in Molecular ToxicologyT32ES015457 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ALLARD, PATRICK, HANKINSON, OLIVER NMN · 2008 to 2025
$4.0M
Sunlight Exposure & Vitamin D Metabolic Gene Variations in Parkinson's DiseaseR03ES017139 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R. · 2009 to 2010
$153k
NIEHS NIH HHS 1R03ES017139NIEHS NIH HHS R03 ES017139NIEHS NIH HHS T32 ES015457
6 · The paper itself

Abstract

introductionA high prevalence of vitamin D deficiency has been reported in Parkinson's disease (PD). Epidemiologic studies examining variability in genes involved in vitamin D metabolism have not taken into account level of exposure to ultraviolet radiation (UVR). We examined whether exposure to UVR (as a surrogate for vitamin D levels) and variations in the vitamin D receptor gene (VDR) are associated with PD.

methodsWithin a geographical information system (GIS) we linked participants' geocoded residential address data to ground level UV data to estimate historical exposure to UVR. Six SNPs in VDR were genotyped in non-Hispanic Caucasian subjects.

resultsAverage lifetime UVR exposure levels were >5000 Wh/m(2), which was higher than levels for populations in previous studies, and UVR exposure did not differ between cases and controls. Homozygotes for the rs731236 TT (major allele) genotype had a 31% lower risk of PD risk (OR=0.69; 95% CI=0.49, 0.98; p=0.04 for TT vs. TC+CC). The rs7975232 GG (minor allele) genotype was also associated with decreased risk of PD (OR=0.63; 95% CI=0.42, 0.93; p=0.02 for GG vs. TG+TT). The association between PD risk and a third locus, rs1544410 (BsmI), was not statistically significant after adjustment for covariates, although there was a trend for lower risk with the GG genotype.

conclusionsThis study provides initial evidence that VDR polymorphisms may modulate risk of PD in a population highly exposed to UVR throughout lifetime.

Indexed as

Ultraviolet RaysAdultAgedAllelesCase-Control StudiesFemaleGenetic Predisposition to DiseaseGenotypeHomozygoteHumansMaleMiddle AgedParkinson DiseasePolymorphism, Single NucleotidePrevalenceRadiation ExposureReceptors, CalcitriolApaIParkinson's diseaseTaqIUltraviolet radiationVitamin DVitamin D receptor gene polymorphisms

Identifiers

PMID25890641
PMCPMC4478085
OpenAlexW2048620378

What OpenQuestion holds

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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 OpenQuestion graph.