Evidence map›Paper›PMID 25794161›Full record

ArticlePharmacogenetics and genomics2015

Genetic and phenotypic variation in UGT2B17, a testosterone-metabolizing enzyme, is associated with BMI in males.

Andy Z X Zhu, Lisa S Cox, Jasjit S Ahluwalia, Caroline C Renner, Dorothy K Hatsukami, Neal L Benowitz, Rachel F Tyndale

Open access · greenAbstract read
In one paragraph

Article in Pharmacogenetics and genomics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.7field-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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
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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

7 authors at 6 institutions in 3 countries.

Andy Z X ZhuaDepartment of Pharmacology and Toxicology bDepartment of Psychiatry, Center for Addiction and Mental Health, Campbell Family Mental Health Research Institute, University of Toronto, Toronto, Ontario, Canada cDepartment of Preventive Medicine and Public Health, School of Medicine, University of Kansas, Kansas City, Kansas dDepartment of Medicine and Center for Health Equity, University of Minnesota Medical School eDepartment of Psychiatry, University of Minnesota, Minneapolis, Minnesota fAlaska Native Medical Center, Cardiology Research and Program Development, Anchorage, Alaska gDepartment of Medicine and Bioengineering and Therapeutic Sciences, Division of Clinical Pharmacology and Experimental Therapeutics, University of California, San Francisco, California, USA.
Lisa S Cox
Jasjit S Ahluwalia
Caroline C Renner
Dorothy K Hatsukami
Neal L Benowitz
Rachel F Tyndale
PharmacoGenetics (China) · CNCentre for Addiction and Mental Health · CAUniversity of California, San Francisco · USUniversity of Kansas · USUniversity of Minnesota · USUniversity of Minnesota Medical Center · US

Funding

University of Toronto Coordinating Genetics Core & Clinical Trial SiteU01DA020830 · NIDA · UNIVERSITY OF PENNSYLVANIA · PI LERMAN, CARYN, TYNDALE, RACHEL FYNVOLA · 2005 to 2014
$22.4M
The Center for Health Disparities Research, Engagement, and Training (CeHDRET)P60MD003422 · NIMHD · UNIVERSITY OF MINNESOTA · PI EVERSON-ROSE, SUSAN A. · 2009 to 2013
$6.1M
Helping African American Light Smokers QuitR01CA091912 · NCI · UNIVERSITY OF KANSAS MEDICAL CENTER · PI COX, LISA SANDERSON · 2001 to 2010
$5.6M
The American Indian/Alaska Native Initiative on CancerU01CA114609 · NCI · MAYO CLINIC ROCHESTER · PI KAUR, JUDITH S · 2005 to 2009
$5.0M
Canadian Institutes of Health Research MOP86471NCI NIH HHS CA091912NCI NIH HHS CA114609NCI NIH HHS R01 CA091912NCI NIH HHS U01 CA114609NIDA NIH HHS DA012353NIDA NIH HHS DA020830NIDA NIH HHS U01 DA020830NIMHD NIH HHS 1P60MD003422NIMHD NIH HHS P60 MD003422PHS HHS HHSN261200700462P
6 · The paper itself

Abstract

objectiveA number of candidate gene and genome-wide association studies have identified significant associations between single nucleotide polymorphisms, particularly in FTO and MC4R, and body weight. However, the association between copy number variation and body weight is less understood. Anabolic androgenic steroids, such as testosterone, can regulate body weight. In humans, UDP-glucuronosyltransferase 2B17 (UGT2B17) metabolizes testosterone to a metabolite, which is readily excreted in urine. We investigate the association between genetic and phenotypic variation in UGT2B17 and body weight. MATERIALS AND

methodsUGT2B17 deletion was genotyped and in-vivo UGT2B17 enzymatic activity (as measured by the 3-hydroxycotinine glucuronide to free 3-hydroxycotinine ratio) was measured in 400 Alaska Native individuals and 540 African Americans.

resultsIn Alaska Native people, UGT2B17 deletion was strongly associated with lower BMI in male individuals (P<0.001), but not in female individuals, consistent with testosterone being a male dominant steroid. The sex-specific association between UGT2B17 deletion and lower BMI was also observed in African Americans (P=0.01 in male individuals). In both populations, UGT2B17 deletion was significantly associated with lower measured in-vivo UGT2B17 activity. In male individuals, lower in-vivo UGT2B17 activity was associated with lower BMI, as observed in the sex-specific genotypic association.

conclusionThese data suggest that UGT2B17 deletion leads to reduced UGT2B17 activity, and lower BMI in male individuals. This is consistent with the hypothesis that reduced UGT2B17-mediated testosterone excretion results in higher testosterone levels. Future studies could confirm this hypothesis by directly measuring serum testosterone levels.

Indexed as

AdultBlack or African AmericanBody Mass IndexDNA Copy Number VariationsEthnicityFemaleGene DeletionGenetic Association StudiesGenotypeGlucuronosyltransferaseHumansIndians, North AmericanMaleMiddle AgedMinor Histocompatibility AntigensObesityGlucuronosyltransferaseMinor Histocompatibility AntigensTestosteroneUGT2B17 protein, human

Identifiers

PMID25794161
PMCPMC4382380
OpenAlexW2083377767

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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.