Evidence map›Paper›PMID 30223776›Full record

ArticleBMC genomics2018

Bivariate genome-wide association analysis strengthens the role of bitter receptor clusters on chromosomes 7 and 12 in human bitter taste.

Liang-Dar Hwang, Puya Gharahkhani, Paul A S Breslin, Scott D Gordon, Gu Zhu, Nicholas G Martin, Danielle R Reed, Margaret J Wright

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 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

8 authors at 5 institutions in 2 countries.

Liang-Dar HwangQIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia. d.hwang@uq.edu.au.ORCID http://orcid.org/0000-0002-5535-2199
Puya GharahkhaniQIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia.
Paul A S BreslinMonell Chemical Senses Center, Philadelphia, Pennsylvania, 19104, USA.
Scott D GordonQIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia.
Gu ZhuQIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia.
Nicholas G MartinQIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia.
Danielle R ReedMonell Chemical Senses Center, Philadelphia, Pennsylvania, 19104, USA.
Margaret J WrightQueensland Brain Institute, University of Queensland, Brisbane, Queensland, 4072, Australia.
QIMR Berghofer Medical Research Institute · AUMonell Chemical Senses Center · USRutgers, The State University of New Jersey · USThe University of Queensland · AUTranslational Research Institute · AU

Funding

Tumor microvesicle-mediated modulation of the bone microenvironmentP01CA093900 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PIENTA, KENNETH J. · 2004 to 2024
$29.6M
Human Umami Taste: Genetics of Psychophysical TraitsR01DC002995 · NIDCD · RUTGERS, THE STATE UNIV OF N.J. · PI BRESLIN, PAUL A. S · 2002 to 2012
$4.2M
GENETICS OF BITTER TASTE PERCEPTION IN HUMANSR01DC004698 · NIDCD · MONELL CHEMICAL SENSES CENTER · PI REED, DANIELLE RENEE · 2000 to 2002
$515k
TASTE MATCHING--GUSTATORY EQUIVALENCE CLASSESR29DC002995 · NIDCD · MONELL CHEMICAL SENSES CENTER · PI BRESLIN, PAUL A.S. · 1997 to 2001
$200k
Australian Research Council DP0664638Australian Research Council DP1093900National Health and Medical Research Council 1031119National Health and Medical Research Council 241944National Institute on Deafness and Other Communication Disorders DC004698National Institute on Deafness and Other Communication Disorders DC02995NIDCD NIH HHS R01 DC002995NIDCD NIH HHS R29 DC002995
6 · The paper itself

Abstract

backgroundHuman perception of bitter substances is partially genetically determined. Previously we discovered a single nucleotide polymorphism (SNP) within the cluster of bitter taste receptor genes on chromosome 12 that accounts for 5.8% of the variance in the perceived intensity rating of quinine, and we strengthened the classic association between TAS2R38 genotype and the bitterness of propylthiouracil (PROP). Here we performed a genome-wide association study (GWAS) using a 40% larger sample (n = 1999) together with a bivariate approach to detect previously unidentified common variants with small effects on bitter perception.

resultsWe identified two signals, both with small effects (< 2%), within the bitter taste receptor clusters on chromosomes 7 and 12, which influence the perceived bitterness of denatonium benzoate and sucrose octaacetate respectively. We also provided the first independent replication for an association of caffeine bitterness on chromosome 12. Furthermore, we provided evidence for pleiotropic effects on quinine, caffeine, sucrose octaacetate and denatonium benzoate for the three SNPs on chromosome 12 and the functional importance of the SNPs for denatonium benzoate bitterness.

conclusionsThese findings provide new insights into the genetic architecture of bitter taste and offer a useful starting point for determining the biological pathways linking perception of bitter substances.

Indexed as

Chromosomes, Human, Pair 12Chromosomes, Human, Pair 7Genome-Wide Association StudyMultigene FamilyAdolescentAdultChildFemaleGenetic PleiotropyGenotypeHumansMaleModels, GeneticPolymorphism, Single NucleotideReceptors, G-Protein-CoupledTaste BudsReceptors, G-Protein-CoupledBitterGWASHumanPerceptionReceptorTaste

Identifiers

PMID30223776
PMCPMC6142396
OpenAlexW2796244876

What OpenQuestion holds

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LicenceCC BY
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.