Genetic variants associated with disordered eating
Transcript of Genetic variants associated with disordered eating
Genetic variants associated with disordered eating
Tracey D Wade, PhD1, Scott Gordon, PhD2, Sarah Medland, PhD2, Cynthia M. Bulik, PhD3,4,Andrew C Heath, DPhil5, Grant W Montgomery, PhD2, and Nicholas G Martin, PhD2
1School of Psychology, Flinders University, Adelaide, Australia2Queensland Institute of MedicalResearch, Brisbane, Australia3Department of Psychiatry, University of North Carolina, Chapel Hill, USA4Department of Nutrition, University of North Carolina, Chapel Hill, USA5Department of Psychiatry, Washington University, St Louis, USA
AbstractObjective—While the genetic contribution to the development of anorexia nervosa (AN) haslong been recognized, there has been little progress relative to other psychiatric disorders inidentifying specific susceptibility genes. Here we have carried out a GWAS on an unselectedcommunity sample of female twins surveyed for eating disorders.
Method—We conducted genome wide association analyses in 2564 female twins for fourdifferent phenotypes derived from self-report data relating to lifetime presence of 15 types ofdisordered eating: anorexia nervosa spectrum, bulimia nervosa spectrum, purging via substances,and a binary measure of no disordered eating behaviors versus 3 or more. To complement thevariant level results we also conducted gene-based association tests using VEGAS.
Results—While no variants reached genome-wide significance at the level of p<10−8, sixregions were suggestive (p<5×10−7). The current results implicate the following genes: CLEC5A;LOC136242, TSHZ1 and SYTL5 for the anorexia nervosa spectrum phenotype, NT5C1B for thebulimia nervosa spectrum phenotype, and ATP8A2 for the disordered eating behaviors phenotype.
Discussion—As with other medical and psychiatric phenotypes, much larger samples and meta-analyses will ultimately be needed to identify genes and pathways contributing to predisposition toeating disorders.
Twin studies suggest that around 60% of the variance in risk for developing anorexianervosa (AN) and disordered eating is due to genetic factors,1–3 with more variableestimates attributed to bulimia nervosa (BN, ranging from 28%4 to 83%5). Linkage studiesidentified regions on chromosomes 1, 2, 4, and 13 as suggestive of linkage for AN6,7 withfollow-up significant association of the delta opioid receptor (OPRD1) and serotonin (5-HT)receptor 1D (HTR1D) genes, both on Chromosome 1.8 For BN, significant linkage wasobserved on chromosome 10 and another region on chromosome 14 was suggestive forgenome-wide linkage.9 Well over 200 candidate gene association studies of eating disordershave been conducted, focusing primarily, but not exclusively on serotonergic, dopaminergic,and appetite regulatory genes; however, due largely to an overreliance on small samples,replication has not been universal and clear conclusions remain elusive.10
Author to whom correspondence should be sent: Professor Tracey Wade, School of Psychology, Flinders University, GPO Box 2100,Adelaide, SA, Australia, 5001. [email protected]; phone: +61-8-8201-3736; fax: +61-8-8201-3877.
Disclosure of conflictsAll authors report no biomedical financial interest or potential conflicts of interest.
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Published in final edited form as:Int J Eat Disord. 2013 September ; 46(6): 594–608. doi:10.1002/eat.22133.
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The current preferred approach to rectifying the nebulous results emerging from a litany ofunderpowered studies is to boost power throughmeta-analyses of multiple Genome WideAssociation Studies (GWAS). In contrast to candidate gene association studies that focus onpre-specified genes of interest, GWAS represent an unbiased scan of the entire genome forcommon genetic variation in cases versus healthy controls. To date threeGWASinvestigations11–13 have been published for eating disorders, none of which have yieldedgenome-wide significant single-nucleotide polymorphisms (SNPs), where adequatesignificance is set at P<10−8, as suggested by Li et al14. The first, from the Japanese GeneticResearch Group for Eating Disorders,11 showed the strongest associations for AN in 320cases and 341 controls at 1q41 (with the most significant association observed at SNPrs2048332) and 11q22 (associated with 4 SNP markers, rs6590474, D11S0268i, rs737582,rs7947224). The second study of 1033 AN cases and 3733 pediatric controls12 hadtopassociation signals detected near ZNF804B, CSRP2BP, NTNG1, AKAP6 and CDH9. Thislatter gene codes for a neuronal cell-adhesion proteins that influences how neuronscommunicate with each other in the brain and has been associated with autism spectrumdisorders. The third study13 which examined six eating disorder-related symptoms,behaviours and personality traits in 2,698 individuals detected association of eight geneticvariants with P<10−5, and an associated meta-analysis showing five SNP markers (andassociated genes) met genome-wide significance level:rs6894268 (RUFY1), rs7624327(CCNL1), rs10519201 (SHC4), rs4853643 (SDPR), rs218361 (TRPS1). A further GWAS ofAN, conducted by the International Wellcome Trust Case Control Consortium (WTCCC3)on 2,907 patients with AN and 14,860 geographically matched controls, is in progress.15
Eating disorders are associated with the highest mortality of any psychiatric disorder.16–19
Best evidence treatment approaches have been identified for bulimic disorders20 buttheevidence base for how best to treat AN is weak.21 There are no medications that arecurrently considered to be effective in the treatment of AN and progress in this area has beenhampered by a lack of knowledge about the underlying neurobiology of the condition. Theclear-cut identification of genomic variation that predisposes to eating disorders can providethe basis for the next generation of research into etiology, treatment, and prevention.
In line with evidence that shows that large-scale collaborative GWAS studies and largersample sizes can achieve the necessary power to identify specific loci in psychiatricdisorders,22,23 the aim of this study is to contribute to the accumulation of a larger samplesize related to disordered eating. The current study conducted a GWAS of four differentphenotypes of disordered eating in an unselected sample of 2564 female twins in order tofurther our knowledge of the genomic variation that predisposes to core features of eatingdisorders. This represents only the fourth published GWAS in eating disorders, and so asecondary aim was to see whether we could achieve any replication with thepreviouspublished studies11–13.
Materials and methodsParticipants
Participants were from the volunteer adult Australian Twin Registry (ATR) maintained bythe National Health and Medical Research Council. These data are from two cohorts ofwomen who completed a mailed questionnaire survey 1988–92, as shown in Figure 1. Thefirst cohort, born before 1964, hasbeen previously described,3,24,25 and an examination oftheir socio-demographic features, including age, marital status, educational background,workforce participation, major lifetime occupation, and religious denomination, suggeststhat the sample is not notably different from the Australian female population (using dataobtained from the Australian Bureau of Statistics between 1986 and 1992). The secondcohort included women born between 1964 and 1971 and has also been previously
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described.26,27 Most of these twins had been recruited when at school some ten years earlier.All applicable institutional regulations concerning the ethical use of human volunteers werefollowed during this research. The final combined sample where there were both phenotypicdata for disordered eating and genotypes comprised 2564 women.
PhenotypesThe 1988–92 surveys mailed to female twins contained five questions assessing disorderedeating and these are shown in Table 1. These questions produced a total of 15 variablesrelating to disordered eating. A previous examination of these items along with twosubsequent measures of eating disordered behavior indicated that 60% (95% CI: 50–68) ofthe variance could be attributed to additive genetic influences.3 In the younger cohort, afollow-up telephone interview was conducted in 2001–2003 when they were aged 28 to 40years of age (about 10 years after the self-report questionnaire) using the Eating DisorderExamination (EDE28) with 1,083 women, indicating a moderate association (r=0.31 and0.38 for Twin 1 and 2 respectively) between the mean number of 16 possible problemsendorsed in the self-report questionnaire and total number of 6 possible eating disorderbehaviors endorsed at interview.27 Moderate agreement is also obtained between twodifferent interview schedules (including the EDE) assessing eating disorders18–24 monthsapart, achieving a kappa less than 0.60.29
As shown in Figure 1, four different phenotypes relating to disordered eating wereexamined. The first three phenotypes were derived from an exploratory factor analysis of the15 variables for all available data, whether women had been genotyped or not. The resultantfactors are shown in Table 1, where items with factor loadings ≥ 0.2 are highlighted. Ofinterest to the current investigation were those factors that related to disordered eating,namely Factor 1 (anorexia nervosa spectrum), Factor 2 (bulimia nervosa spectrum) andFactor 3 (purging via substances).
For the fourth phenotype (disordered eating behaviors), the item relating to “difficultycontrolling weight” was excluded as it was endorsed so widely that it was considered not tobe indicative of disordered eating but rather of the normative struggle many women feel thatthey have with their weight. The remaining 14 items were reduced to a binary variable,where women who endorsed “no” for all items were grouped as “controls”, and women whoendorsed 3 or more problems were grouped as “cases”.
GenotypingGenotypes were drawn from an existing QIMR Genetic EpidemiologyLaboratory GWASdata for >19,000 individuals (comprised of twin pairs, nuclear families, or singletons),which integrates data from eight batches of genotyping obtained using standard Illuminachips. The subset used here includes individuals typed withthe 610K-quad chip(1138individuals); 370K or 370K-duo chips (738 individuals); or the Illumina 317K chip (644individuals); 316 individuals were genotyped on more than one chip either for deliberate QCreasons or to obtain highercoverage than an early generation chip used previously.Individual genotypes were eliminated where they conflict between monozygotic twins orrepeat genotypings, as well as (within each family) all genotypes for markers withMendelian errors. All twin-family members were used in the genetic analysis, takingaccount of their relatedness (see below).
Within each batch, genotypes were called using the Genotyping Module in Beadstudio andthen exported. Cleaning was later performed (a) per-SNP to remove SNPs with (1) MAF<1%; (2) call rate <95%; (3) mean GenCall score <0.7; or (4) Hardy-Weinberg p-value<10−6; and (b) per-individual to remove individuals with (in their batch) a call rate <95% or
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other obvious quality issues; or (c) in the integrated dataset, having (1) an unresolvablesample mix-up, zygosity or pedigree issue after archival investigation of outlier familiesfrom IBS and IBD-based relatedness checks; or (2) being an ancestry outlier based on lying>6sd from the PC1 or PC2 mean for Europeans in a Principal Components Analysis run inSMARTPCA v3, with all HapMap Phase II/III and non-QIMR EUTWIN populations usedas a training set. The dataset contains verified pedigree data for all individuals barring asmall number of distant relationships (typical π-hat<0.1).
Measured genotypes for the ~281,000 SNPs passing QC in all genotyping batcheswere usedto impute to 1000 Genomes SNPs (Release 20100804) via the recommended pre-phasingmethod in MACH and Minimac30, using the publicly available EUR phased haplotypes asreference panel (from the formatted 1000 Genomes haplotype files supplied by the softwareauthors’ web site, for this purpose). In all, 7262007 SNPs were initially analysed (this isafter the R2 quality control test but not the MAF test), and 6150213 SNPs remained afterfiltering out those with MAF (Minor Allele Frequency) < 2%. Since people genotypedalready had their zygosity assessed previously in various ways, no twin pairs needed to bediscarded due to discordance revealed by genotyping. The number of twins passing qualitycontrol varied by phenotype: 2524 for the anorexia nervosa spectrum, 2442 for the bulimianervosa spectrum, 2521 for purging via substances, 1659 for the 14-item disordered eatingscore.
Statistical analysisFour case/control phenotypes were analyzed. To allow for both developmental and secularcohort effects on these phenotypes we included age, age2, cohort, age*cohort, age2*cohortas covariates. Analyses were conducted using MERLIN-OFFLINE, which implements atotal test of association using allele dosage scores while explicitly modeling the relationshipstructure within our MZ and DZ twin families.31 Variants with poor imputation accuracy(R2<0.3) and rare variants (MAF<0.02) were excluded from analyses.
Gene-based association tests were run on the association results for common variantsusingVEGAS32(v0.8.27). Note that VEGAS as currently configured identifies SNPs within genesbased on the geneboundaries as defined by Build 36 (hg18) coordinates, and returns resultsin these coordinates. VEGAS results reported here have been converted to Build 37 (hg19)for consistency with other quoted positions. Due to software limitations, only SNPs found inHapMap II genotypes were analyzed, and results for the X chromosome are not availablefrom VEGAS.
ResultsGenome-wide association of SNP data
The results of the GWAS analyses for each of our four binary eating disorder variables aresummarized in the Manhattan plots presented in Figure 2. LD pruned results for variantsp<10−5are provided in Table 2. The top 100 gene-based results from VEGAS are listed inTable 3.
Many of those with one (or few) associated SNPs per peak appear to represent false positivesignals, as either they are not in LD with adjoining SNPs, or are in LD but adjoining SNPsare not also associated. Peaks shown with ≤2 SNPs in Table 2 were all manually inspectedto ascertain if they contained a signal off the listed SNP(s). In the majority of instances thereis no association signal off the listed SNP(s) even without applying the ‘MAF≥2%’ filter toassociation results. In others there are other mildly associated SNPs with no signal inbetween. The most notable such exceptions have been footnoted in Table 2.
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The initial GWAS analyses yielded a number of suggestive association signals,althoughnone reached genome-wide significance for common variants within1KGP imputeddata of p<10−8. Regional association plots for the sesuggestive signals are shown in Figure3. The power associated with our strongest SNPs (at p<10−5) was R2<0.5 for 9, R2<0.6 for15, and R2<0.7 for 21, indicating that they were well imputed.
Attempted replication of results from the previous GWAS studiesWe examined our results for the regions containing SNPs and CNV regions reported asassociated with AN by Wang et al,12 and the other previously-reported associated SNPsreported earlier13,33 and in a Japanese population,11 replication of which was tested in Wanget al. The p-values for the relevant SNPs in our data are reported in Table 4, along withMAF from our imputed data and the referenced papers (all for Europeans for Wang et al12;for Japanese by Nakabayashi et al11) for rs2048332. Our frequencies are consistent with therange between case and control frequencies for Wang et al12 (suggesting good imputation)but we fail to replicate (in any of our phenotypes)their associated SNPs for AN, or thosereported earlier.11,13,33 We do find a nominally significant association (p~0.01) in both theBN spectrum and 14-item disordered eating behavior variable for rs906281, which Wang etal12 investigated as a proxy for rs2048332 which was itself reported by Nakabayashi et al.11
However this is significant only in terms of the limited number of tests shown in Table 5,and is for a different population.
DiscussionThe current study represents only the fourth published GWAS for eating disorders-relatedphenotypes and extends the literature by examining four broad eating disorder phenotypesassessed by self-report - anorexia nervosa spectrum, bulimia nervosa spectrum, purging viasubstances, and disordered eating behaviors. A number of suggestive signals were identified,although none reached genome-wide significance at the level of p<10−8. The strongestevidence of association was observed at rs145241704, rs62090893 and rs56156506 for theanorexia nervosa spectrum phenotype, rs1445130 for the bulimia nervosa spectrumphenotype, rs138206701 for the purging phenotype, and rs7322916 for the disordered eatingbehaviors phenotype.
The strongest signal for our anorexia nervosa spectrum variable is located in a gene richregion on chromosome 7 (141.5Mb). Within this region are a number of promisingpositional candidates. The peak variant in this region, rs145241704, is located within themRNA DQ571874 which has previously been identified as a Piwi-interacting RNA playinga role in gamete development. However, the LD block within this region includes a numberof taste receptor genes including TAS2R3, TAS2R4 and TAS2R5, which encode bitter tastereceptors. Such receptors have previously been shown to influence perception and eatingbehaviors with respect to certain foods. Also within this region is CLEC5A, which is acarbohydrate-binding protein domain which has a diverse range of functions including cell-cell adhesion, immune response to pathogens and apoptosis. The next strongest signal,which peaked at rs62090893encompasses theTSHZ1gene. Notably, in a recent studyexamine changes in gene expression in response to bariatric surgery in a sample of patientswith Type 2 diabetes34, changes in expression of TSHZ1 were correlated with changes inweight, fasting plasma glucose and glycosylated hemoglobin.
The strongest result for the for the BN spectrum phenotype, was located in an intergenicregion centered around rs1445130 on chromosome 2. Recent results from the ENCODEconsortium have shown enrichment of the H3K27Ac histone marks within this regionsuggesting that there may be an active regulatory region nearby. The closest gene, NT5C1B,
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plays a role in the production of adenosine, which plays an important role in biochemicalprocesses, such as energy transfer.
Consistent with research in other areas of psychiatric genetics prior to accumulation of largesample sizes, there was no meaningful replication between previous genome-wide studies ofAN and our current results. If eating disorders follows the same scientific trajectory of othermedical and psychiatric disorders, which is increased replication and clarity withincreasingly large sample sizes35 - and there are not theoretical reasons why they should not- then we would expect more concrete results as we combine samples into meta-analyses.
The current study has a number of limitations; first, we used self-report data that are notdirectly reflective of the diagnostic criteria for eating disorders. While our data cluster inrecognizable eating disorder syndromes,25 the phenotypes represent rather a bluntinstrument for identifying specific eating disorders. Second, as with other studies ofpsychiatric illness that have used population based samples, the analyses are underpowered.Third, there are there are only 45persons who would qualify for a diagnosis of BN or AN inour genotypedsample,36 so our ability to contribute cases to larger case-control samples islimited. However, GWAS now exist that are not focused on diagnosis but on eatingdisorder-related symptoms and behaviors.13 As GWAS meta-analysis by definition requiresthe availability of a number of samples, and a review of the genetic architecture ofpsychiatric disorders shows that sample size is of greater importance than heritability withrespect to the identification of specific loci,22 our analyses should make a usefulcontribution towards improving the power to identify genetic variants influencing symptomsand behaviours related to eating disorders through the conduct of meta- and mega-analyseswith other such GWAS.
AcknowledgmentsSupported by National Institutes of Health Grants AA07535, AA07728, AA13320, AA13321, AA14041,AA11998, AA17688, DA012854, and DA019951; by Grants from the Australian National Health and MedicalResearch Council (241944, 339462, 389927,389875, 389891, 389892, 389938, 442915, 442981, 496739, 552485,and 552498); and by the 5th Framework Programme (FP-5) GenomEUtwin Project (QLG2-CT-2002-01254).Genome-wide association study genotyping at Center for Inherited Disease Research was supported by a Grant tothe late Richard Todd, M.D., Ph.D., former Principal Investigator of Grant AA13320. SEM and GWM aresupported by the National Health and Medical Research Council Fellowship Scheme. We also thank Dixie Stathamand Anjali Henders (phenotype collection); Lisa Bowdler and Steven Crooks (DNA processing); and David Smyth(Information Technology support) at Queensland Institute of Medical Research, Brisbane Australia. Last, but notleast, we thank the twins and their families for their participation.
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Figure 1.Flow diagram depicting sample and data used in the GWAS
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Figure 2.Manhattan plots: 1000 Genomes-based dosage scores (SNPs with R2>0.3& MAF>0.02) forthe four disordered eating phenotypes analysed. Vertical scale is −log10(p); p<10−8 isconsidered significant. Horizontal scale is hg19/Build 37 position. Green for SNPs withp<10−5, otherwise alternate colours for alternate chromosomes.
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Figure 3.Association peak regional plots of per-SNP association p-values for (1) the most highlyassociated but plausible association peaks for each phenotype (i.e. containing a group ofadjoining associated SNPs in high LD);(2) additional associated genes (highlighted in boldin Tables 3 and 4). Obtained for Build 37/hg19 coordinates using v1.1 of LocusZoom, withLD data for 1000 Genomes release 20101123 (http://genome.sph.umich.edu/wiki/LocusZoom_Standalone). Shown with recombination rate (underlying blue graph) andannotated with names and positions of known genes if any (box below each plot). Symbolsfor SNPs are: filled diamond for most associated SNP (as named); filled triangle ifgenotyped or open triangle if purely imputed. Colouring indicates LD with the named SNP(grey = LD unknown) based on genotypes from 1000 Genomes release ‘20101123’. Thephenotype name is labeled below each panel.
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Tabl
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End
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and
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ampl
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=60
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g va
rim
ax r
otat
ion
of th
e 15
eat
ing
item
s fr
om T
able
1: i
tem
s lo
adin
g ≥
0.2
are
in b
old
Item
>1 it
em a
nsw
ered
(%, N
=610
4)G
enot
yped
fem
ales
(%, N
=256
4)F
acto
r 1
Ano
rexi
a ne
rvos
asp
ectr
um
Fac
tor
2B
ulim
ia n
ervo
sasp
ectr
um
Fac
tor
3P
urgi
ng v
iasu
bsta
nces
Fac
tor
4D
isor
dere
d ea
ting
beha
vior
s
Do
you
feel
that
you
hav
e di
ffic
ulty
cont
rolli
ng w
eigh
t?46
.047
.5−
0.08
4−
0.08
−0.
132
0.43
8
Do
you
feel
you
hav
e ha
d pr
oble
ms
with
diso
rder
ed e
atin
g?23
.923
.80.
003
−0.
015
−0.
138
0.37
5
Do
you
feel
you
hav
e be
en p
reoc
cupi
edw
ith th
ough
ts o
f fo
od o
r bo
dy w
eigh
t?36
.937
.1−
0.04
−0.
051
−0.
111
0.40
2
Hav
e yo
u ev
er u
sed
any
of th
e fo
llow
ing
met
hods
to c
ontr
ol y
our
body
wei
ght?
Star
vatio
n12
.411
.90.
055
0.02
70.
172
0.07
6
Exc
essi
ve e
xerc
ise
13.6
12.6
0.01
50
0.06
80.
164
Lax
ativ
es7.
77.
80.
013
−0.
022
0.46
1−
0.12
5
Flui
d ta
blet
s7.
47.
6−
0.01
6−
0.08
0.50
6−
0.16
3
Slim
min
g ta
blet
s16
.317
.4−
0.06
7−
0.06
40.
324
0.05
9
Self
-ind
uced
vom
iting
4.5
3.8
−0.
041
0.28
0.20
7−
0.08
7
Hav
e yo
u ev
er s
uffe
red
from
or
been
trea
ted
for:
Bin
ge e
atin
g2.
62.
9−
0.08
40.
455
−0.
139
0.02
7
Bul
imia
1.0
0.9
−0.
105
0.52
5−
0.03
2−
0.10
2
Eat
ing
diso
rder
3.5
3.3
0.20
80.
156
−0.
090.
014
Ano
rexi
a ne
rvos
a1.
81.
70.
301
0.02
30.
014
−0.
067
Low
bod
y w
eigh
t5.
05.
10.
426
−0.
148
−0.
017
−0.
052
Wei
ght l
oss
5.9
5.8
0.39
4−
0.15
80.
003
−0.
011
Int J Eat Disord. Author manuscript; available in PMC 2014 September 01.
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
Wade et al. Page 14
Tabl
e 2
Sing
le-S
NP
Ass
ocia
tion
Peak
s fo
r in
divi
dual
100
0 G
enom
es S
NPs
- p
eaks
hig
hlig
hted
in b
old
are
plot
ted
in F
igur
e 3
Chr
Star
t (b
p,B
uild
37)
End
(bp
, Bui
ld37
)#
SNP
s (p
<10−5
)SN
P w
ith
low
est
plo
wes
t p-
val
ueE
ffec
t al
lele
Oth
er a
llele
Eff
ect
=Bet
aSE
Impu
tati
on R
2
Impu
ted
Alle
le f
req
(%)
Gen
es a
t th
ese
SNP
sG
enes
wit
hin
(app
rox)
+/−
50k
b
Ano
rexi
a ne
rvos
a sy
ndro
me
fact
or c
ase/
cont
rol
714
1450
588
1416
6581
1065
rs14
5241
704
1.51
E-0
7T
G−0
.143
0.02
70.
542
95.2
CL
EC
5A;
LO
C13
6242
KIA
A11
47;
MG
AM
; O
R9A
4;SS
BP
1; T
AS2
R3;
TA
S2R
4;T
AS2
R5;
TA
S2R
38;
WE
E2
1872
9864
9573
0727
7926
rs62
0908
932.
84E
-07
GA
−0.0
850.
017
0.87
692
.1T
SHZ
1C
18or
f62
X37
9056
4238
0093
5255
rs56
1565
069.
51E
-07
AT
−0.0
530.
011
0.99
481
.3SY
TL
5
1087
6929
6587
6942
922
rs76
7659
682.
21E
-06
TC
−0.
064
0.01
40.
716
85.6
GR
ID1
1077
2986
091
rs20
4309
03.
26E
-06
AG
−0.
119
0.02
60.
727
95.9
594
1485
381
rs46
9339
3.45
E-0
6A
G−
0.14
40.
031
0.87
597
.7M
CT
P1
712
1934
321
rs11
4945
094
3.60
E-0
6G
A−
0.13
50.
029
0.46
495
.9
887
8742
9296
5044
723
rs77
7420
183.
83E
-06
AG
−0.
117
0.02
50.
609
94.6
CN
BD
1
179
2189
4079
2279
567
rs19
3702
04.
45E
-06
TC
−0.
041
0.00
91.
000
68.1
1012
7025
691
rs75
2631
406.
44E
-06
AG
−0.
172
0.03
80.
435
97.4
CA
MK
1D
1679
1847
5379
1868
862
rs80
5018
76.
57E
-06
TC
−0.
044
0.01
00.
939
73.6
WW
OX
222
3353
446
1rs
1749
6827
7.29
E-0
6C
A−
0.04
20.
009
0.76
755
.0SG
PP2
118
0128
044
1801
3072
32
rs55
9469
078.
54E
-06
CT
−0.
066
0.01
50.
888
90.1
QSO
X1
CE
P350
1385
5482
0785
5497
362
rs95
3168
68.
90E
-06
TG
−0.
038
0.00
80.
995
57.1
119
2063
341
rs28
4410
178.
93E
-06
GA
−0.
086
0.01
90.
335
82.7
AL
DH
4A1
TA
S1R
2
132
6684
281
rs64
2579
39.
63E
-06
AG
−0.
066
0.01
50.
357
69.7
CC
DC
28B
C1o
rf91
; DC
DC
2B; E
IF3I
;FA
M16
7B; I
QC
C; K
PNA
6; L
CK
;T
XL
NA
Bul
imia
ner
vosa
syn
drom
e fa
ctor
cas
e/co
ntro
l
218
7946
1018
8675
8043
rs14
4513
01.
08E
-07
AG
−0.0
560.
010.
974
86.4
NT
5C1B
863
2589
171
rs14
2014
203
8.83
E-0
7T
G−
0.12
60.
026
0.76
597
.4N
KA
IN3
2119
5314
421
rs77
6000
761.
17E
-06
AC
−0.
124
0.02
50.
588
97.1
CH
OD
L; T
MPR
SS15
1611
3869
601
rs11
7096
873
1.95
E-0
6C
T−
0.12
90.
027
0.65
497
.4PR
M1;
PR
M2;
PR
M3;
SO
CS1
; TN
P2
158
2889
7258
3198
282
rs98
5795
2.22
E-0
6T
G−
0.09
40.
020
0.65
294
.6D
AB
1
2231
4383
611
rs11
1383
589
2.25
E-0
6C
T−
0.08
70.
018
0.38
389
.2SM
TN
Int J Eat Disord. Author manuscript; available in PMC 2014 September 01.
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
Wade et al. Page 15
Chr
Star
t (b
p,B
uild
37)
End
(bp
, Bui
ld37
)#
SNP
s (p
<10−5
)SN
P w
ith
low
est
plo
wes
t p-
val
ueE
ffec
t al
lele
Oth
er a
llele
Eff
ect
=Bet
aSE
Impu
tati
on R
2
Impu
ted
Alle
le f
req
(%)
Gen
es a
t th
ese
SNP
sG
enes
wit
hin
(app
rox)
+/−
50k
b
613
8426
032
1rs
1556
640
2.33
E-0
6T
C−
0.07
50.
016
0.43
788
.0PE
RP
513
4321
546
1rs
2993
622.
52E
-06
AG
−0.
062
0.01
30.
766
88.6
CA
TSP
ER
3PI
TX
1; P
CB
D2
463
8456
2963
8932
7827
rs14
5379
083
3.26
E-0
6G
A−0
.037
0.00
80.
813
51.0
1585
6992
0785
7192
079
rs80
4085
53.
32E
-06
CG
0.03
50.
007
0.97
263
.4PD
E8A
667
6452
4467
6532
796
rs28
6310
203.
45E
-06
GA
−0.
080
0.01
70.
718
92.5
1929
8975
3729
9185
774
rs12
9862
073.
90E
-06
GA
−0.
044
0.01
0.96
381
.7V
STM
2B
488
0533
3588
1267
974
rs11
5694
618
3.91
E-0
6A
G−
0.12
30.
027
0.76
097
.9A
FF1;
KL
HL
8C
4orf
36; H
SD17
B13
; HSD
17B
11
253
7270
3453
7565
424
rs56
1486
754.
50E
-06
TC
−0.
076
0.01
70.
905
94.2
517
7808
675
1rs
2910
124
5.80
E-0
6C
T−
0.05
90.
013
0.61
085
.8C
OL
23A
1
111
4226
143
1rs
6174
2849
5.82
E-0
6G
A−
0.17
90.
039
0.32
697
.5M
AG
I3PH
TF1
431
1527
5631
1561
783
rs74
8799
865.
86E
-06
GA
−0.
140
0.03
10.
619
97.5
313
3260
874
1rs
1170
8304
6.09
E-0
6C
T−
0.05
90.
013
0.59
885
.3C
DV
3
1587
7100
6687
7100
6610
rs80
2434
36.
14E
-06
AT
−0.
045
0.01
00.
901
83.1
515
0585
867
1505
9625
412
rs77
2477
46.
93E
-06
GA
−0.
054
0.01
20.
899
88.4
CC
DC
69G
M2A
316
3855
069
1rs
7866
1745
7.15
E-0
6C
T−
0.06
80.
015
0.64
590
.8
810
0864
111
rs69
9963
1(a)
8.01
E-0
6C
G−
0.09
00.
020
0.85
496
.5M
SRA
2134
3697
611
rs11
7124
364
8.93
E-0
6C
T−
0.16
00.
036
0.37
497
.7O
LIG
2
Pur
ging
via
sub
stan
ces
fact
or c
ase/
cont
rol
580
4065
661
rs13
8206
701
9.65
E-0
8A
G−
0.32
70.
061
0.53
598
.0R
ASG
RF2
813
4771
894
1347
8127
63
rs74
5661
336.
65E
-07
CT
−0.
249
0.05
00.
465
96.9
223
2298
076
1rs
1247
5512
6.82
E-0
7G
A0.
108
0.02
20.
349
54.3
NC
L; P
TM
A; P
DE
6D
358
1014
7158
1385
2810
rs13
0770
171.
00E
-06
CT
−0.0
730.
015
0.93
371
.0F
LN
BD
NA
SE1L
3
222
8667
258
2286
7257
96
rs10
1750
701.
94E
-06
AG
0.12
40.
026
0.34
175
.0SP
HK
AP;
CC
L20
376
2617
2476
2618
202
rs15
1645
93.
37E
-06
CT
−0.
270
0.05
80.
383
96.8
1070
0142
301
rs10
9980
353.
61E
-06
CT
−0.
151
0.03
30.
775
94.5
AT
OH
7
913
0503
612
1305
1797
35
rs51
4024
4.51
E-0
6A
G0.
061
0.01
30.
999
57.2
PK
N3
SET
; W
DR
34;
ZD
HH
C12
; Z
ER
1
831
5622
031
5627
13
rs14
2816
172
5.60
E-0
6C
T−
0.27
30.
060
0.52
497
.6C
SMD
1
260
1263
111
rs14
5433
814
6.25
E-0
6G
A−
0.23
90.
053
0.55
997
.6
Int J Eat Disord. Author manuscript; available in PMC 2014 September 01.
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
Wade et al. Page 16
Chr
Star
t (b
p,B
uild
37)
End
(bp
, Bui
ld37
)#
SNP
s (p
<10−5
)SN
P w
ith
low
est
plo
wes
t p-
val
ueE
ffec
t al
lele
Oth
er a
llele
Eff
ect
=Bet
aSE
Impu
tati
on R
2
Impu
ted
Alle
le f
req
(%)
Gen
es a
t th
ese
SNP
sG
enes
wit
hin
(app
rox)
+/−
50k
b
331
0367
3831
0427
388
rs15
0620
37.
71E
-06
GT
−0.
083
0.01
80.
952
84.9
GA
DL
1
514
0668
925
1rs
1139
5153
79.
77E
-06
GT
−0.
163
0.03
70.
875
96.2
PCD
HG
A* ;
PC
DH
GB
* ; S
CL
25A
2;T
AF7
14-i
tem
cas
e/co
ntro
l dis
orde
red
eati
ng b
ehav
iour
s
1325
9940
4426
0225
9743
rs73
2291
67.
68E
-07
GA
0.08
90.
018
0.89
950
.1A
TP
8A2
115
2295
942
1524
0720
782
rs31
2066
71.
66E
-06
AG
−0.1
180.
025
0.95
684
.5F
LG
; F
LG
2; C
RN
N
639
1176
981
rs21
1520
02.
25E
-06
TG
0.09
80.
021
0.98
076
.8C
6orf
64; K
CN
K5
1012
8752
081
rs10
9062
333.
65E
-06
CT
−0.
288
0.06
20.
953
97.9
CA
MK
1D
2015
1207
4415
1210
812
rs11
0871
23(b
)3.
83E
-06
AG
−0.
120.
026
0.53
673
.8M
AC
RO
D2
580
4065
661
rs13
8206
701
4.25
E-0
6A
G−
0.42
50.
092
0.53
598
.0R
ASG
RF2
1610
6636
2710
6738
447
rs22
2143
34.
99E
-06
GT
−0.
087
0.01
90.
926
68.2
EM
P2T
EK
T5
410
0395
414
1004
1835
310
rs14
8915
469
7.90
E-0
6C
T−
0.27
90.
062
0.95
397
.9A
DH
7; C
4orf
17
Not
es:
* man
y ge
nes/
isof
orm
s in
that
fam
ily
(a) rs
6999
631
(Bul
imia
cas
e/co
ntro
l) is
123
5 bp
fro
m S
NP
rs14
1680
122
(p~8
.0×
10−
10, M
AF~
1.1%
) w
hich
fai
ls o
ur 2
% M
AF
filte
r. H
owev
er th
ere
is n
o ap
pare
nt a
ssoc
iatio
n si
gnal
apa
rt f
rom
thes
e tw
o SN
Ps e
ven
with
out t
hat f
ilter
.
(b) rs
1108
7123
(14
-ite
m c
ase/
cont
rol)
is in
a w
ide
bloc
k of
ass
ocia
ted
SNPs
dow
n to
p~1
.3×
10−
5 [4
0 w
ith p
≤ 1
0−4 ]
whi
ch f
ail t
he p
-val
ue f
ilter
use
d he
re.
Int J Eat Disord. Author manuscript; available in PMC 2014 September 01.
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
Wade et al. Page 17
Tabl
e 3
Gen
e-ba
sed
asso
ciat
ions
at p
<10
−3
[plu
s ot
her
top
100
gene
s in
sam
e bl
ock]
for
eac
h ph
enot
ype.
Obt
aine
d us
ing
VE
GA
S so
ftw
are
base
d on
100
0 G
enom
es p
er-S
NP
p-va
lues
. Due
to s
oftw
are
limita
tions
this
only
con
side
rs S
NPs
fou
nd in
Hap
Map
Pha
se I
I, a
nd w
as n
ot r
un f
or th
e X
chr
omos
ome.
Gen
es h
ave
been
mer
ged
into
one
ent
ry a
nd s
how
n fo
r th
e lo
wes
t p-v
alue
whe
re m
ultip
le g
enes
in th
e sa
me
LD
blo
ckar
e as
soci
ated
. The
num
ber
of u
nder
lyin
g SN
Ps (
or r
ange
of
num
bers
, if
mul
tiple
gen
es)
is s
how
n. I
n m
ost c
ases
ther
e ar
e m
any
othe
r ge
nes
with
in ~
200
kbp.
Fig
ure
3 in
clud
es p
lots
of
per-
SNP
asso
ciat
ion
for
entr
ies
high
light
ed in
bol
d [r
efer
ence
SN
P fo
r th
e pl
ot m
ay d
iffe
r fr
om th
e on
e qu
oted
her
e].
Chr
Star
t (b
p; h
g19/
Bui
ld 3
7)E
nd (
bp)
Mos
t as
soci
ated
gen
e in
blo
ckM
ost
asso
ciat
ed H
apM
ap (
II)
SNP
wit
hin
mos
t as
soci
ated
gen
eO
ther
gen
e(s)
ass
ocia
ted,
top
100
for
phen
otyp
eG
ene
nam
eG
ene
p- v
alue
# SN
Ps
SNP
nam
ep-
valu
eE
ffec
t al
lele
Oth
er a
llele
Eff
ect
=Bet
aSE
Impu
tati
on R
2E
ffec
t al
lele
freq
(%
)
Ano
rexi
a sp
ectr
um f
acto
r ca
se/c
ontr
ol
714
1536
085
1416
4678
3O
R9A
44.
30E
-05
72rs
1285
957
1.00
E-0
6C
T−0
.056
0.01
20.
968
82.6
LO
C13
6242
; C
LE
C5A
313
0613
433
1310
6930
3A
STE
18.
50E
-05
84rs
1307
6493
3.34
E-0
5C
T−0
.043
0.01
00.
982
78.8
AT
P2C
1; N
EK
11
1629
6742
9929
7093
14SP
N1.
28E
-04
28rs
9933
310
3.30
E-0
5A
G0.
043
0.01
00.
638
58.9
QPR
T
1012
4320
180
1244
5933
8C
10or
f120
1.89
E-0
454
rs24
2103
14.
62E
-04
TC
0.04
80.
014
0.47
874
.0D
MB
T1
1087
3593
1188
4958
24L
DB
32.
78E
-04
154
rs28
0354
62.
79E
-04
GA
0.03
40.
009
0.84
354
.6O
PN4;
GR
ID1
274
6821
9874
8751
64L
OX
L3
2.87
E-0
436
rs17
0100
211.
00E
-05
TA
−0.
105
0.02
40.
696
95.8
ZN
HIT
4; W
BP1
; GC
S1; M
RPL
53;
CC
DC
142;
TT
C31
; LB
X2;
PC
GF1
; TL
X2;
DQ
X1;
AU
P1; H
TR
A2;
DO
K1;
C2o
rf65
1580
1373
1780
2636
43M
TH
FS3.
48E
-04
164
rs11
1398
31.
30E
-04
CA
−0.
033
0.00
90.
988
63.1
ST20
; C15
orf3
7; B
L2A
1
168
5116
4468
5164
60D
IRA
S33.
88E
-04
64rs
1206
9862
5.42
E-0
4G
A−
0.11
00.
032
0.40
695
.9
1010
2672
325
1027
4727
2FA
M17
8A4.
49E
-04
118
rs11
1907
902.
02E
-04
CA
0.03
20.
009
0.99
964
.1SE
MA
4G; M
RPL
43
511
8407
083
1185
8482
2D
MX
L1
6.14
E-0
412
9rs
4895
185
1.69
E-0
4A
G−
0.03
30.
009
0.99
966
.8
713
8818
523
1388
7454
6T
TC
267.
70E
-04
82rs
7798
474
6.90
E-0
5T
G−
0.03
90.
010
0.99
275
.4
886
0193
7686
1326
43L
RR
CC
19.
53E
-04
34rs
4150
880
1.70
E-0
5A
T−
0.04
50.
010
0.91
276
.2L
RR
CC
1; E
2F5;
C8o
rf59
458
2249
058
9478
5C
RM
P19.
67E
-04
205
rs37
7489
52.
00E
-05
TA
−0.
036
0.00
80.
981
50.4
Bul
imia
ner
vosa
spe
ctru
m f
acto
r ca
se/c
ontr
ol
514
0682
195
1408
9254
6SL
C25
A2
1.18
E-0
482
rs10
4913
091.
67E
-04
AG
−0.0
950.
025
0.54
796
.1T
AF
7; P
CD
HG
A1;
PC
DH
GA
3
242
3965
1542
7212
37K
CN
G3
1.58
E-0
413
3rs
1874
449
6.30
E-0
5T
G0.
030
0.00
70.
926
57.0
EM
L4;
CO
X7A
2L
1669
7962
7369
9978
89L
OC
3481
74-1
2.10
E−
0430
rs90
4809
4.30
E-0
5G
A−
0.03
30.
008
0.87
867
.6W
WP2
338
0350
7738
0711
33PC
LD
12.
48E
-04
85rs
6809
649
2.44
E-0
4T
C0.
036
0.01
00.
957
82.2
VIL
L
110
0930
1510
4802
01K
IF1B
2.54
E-0
417
3rs
1213
1785
1.50
E-0
5C
T−
0.04
20.
010
0.75
275
.4PG
D; U
BE
4B
710
0218
038
1003
9541
9PO
P73.
02E
-04
42rs
2217
955.
50E
-05
TC
−0.
029
0.00
71.
000
65.0
GN
B2;
GIG
YF1
; EPO
; TFR
2; A
CT
L6B
;Z
AN
Int J Eat Disord. Author manuscript; available in PMC 2014 September 01.
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
Wade et al. Page 18
Chr
Star
t (b
p; h
g19/
Bui
ld 3
7)E
nd (
bp)
Mos
t as
soci
ated
gen
e in
blo
ckM
ost
asso
ciat
ed H
apM
ap (
II)
SNP
wit
hin
mos
t as
soci
ated
gen
eO
ther
gen
e(s)
ass
ocia
ted,
top
100
for
phen
otyp
eG
ene
nam
eG
ene
p- v
alue
# SN
Ps
SNP
nam
ep-
valu
eE
ffec
t al
lele
Oth
er a
llele
Eff
ect
=Bet
aSE
Impu
tati
on R
2E
ffec
t al
lele
freq
(%
)
1469
5176
4169
7090
72E
XD
L2
3.56
E-0
487
rs49
0270
41.
63E
-04
CG
−0.
028
0.00
70.
969
61.1
WD
R22
516
9064
292
1695
1038
1L
OC
1001
3189
74.
71E
-04
300
rs30
080
4.70
E-0
5C
G−
0.03
00.
007
0.99
760
.7D
OC
K2
517
5511
908
1755
4345
7FA
M15
3B5.
58E
-04
30rs
7443
800
3.22
E-0
4G
A−
0.02
70.
007
0.94
357
.5
2240
7425
0340
8062
93A
DSL
5.66
E-0
452
rs22
3531
82.
68E
-04
CT
−0.
037
0.01
00.
866
81.4
SGSM
3
2127
0967
9027
1447
71G
AB
PA5.
66E
-04
81rs
1048
2968
2.41
E-0
4C
A−
0.04
30.
012
0.95
989
.3A
TP5
J
1499
9477
3899
9778
52C
CN
K7.
06E
-04
87rs
4905
848
9.78
E-0
4G
A−
0.02
60.
008
0.79
648
.4C
CN
K
122
5965
530
2259
7816
4SR
P97.
29E
-04
101
rs12
1182
236.
34E
-04
AT
−0.
061
0.01
80.
412
90.4
SRP9
713
8728
265
1388
7454
6Z
C3H
AV
17.
56E
-04
123
rs18
1417
03.
40E
-05
AT
−0.
056
0.01
40.
797
90.2
TT
C26
123
7550
5523
8863
22E
2F2
8.03
E-0
464
rs32
1814
81.
97E
-04
AG
−0.
028
0.00
80.
905
54.7
DD
EFL
1; I
D3
222
8474
805
2284
9788
8D
KFZ
p547
H02
58.
18E
-04
158
rs23
9646
81.
47E
-04
AC
−0.
046
0.01
20.
786
87.1
C2o
rf83
1949
5884
6449
7150
93L
IN7B
8.35
E-0
471
rs80
441.
02E
-03
GT
−0.
024
0.00
70.
979
60.6
SNR
P70;
FL
J104
90; P
PFIA
3; H
RC
; TR
PM4
1631
4703
1631
5401
24T
GFB
1I1
8.98
E-0
444
rs71
8790
07.
53E
-04
AG
−0.
025
0.00
70.
956
48.5
AR
MC
5; S
LC
5A2;
C16
orf5
8; E
RA
F
1574
5286
6674
6600
81C
CD
C33
9.55
E-0
418
4rs
2930
313
1.23
E-0
4A
G−
0.05
90.
015
0.69
091
.1C
YP1
1A1
1543
5684
7843
9410
39L
CM
T2
9.58
E-0
462
rs24
1277
93.
33E
-04
AG
−0.
043
0.01
20.
917
89.8
AD
AL
; ZSC
AN
29; T
UB
GC
P4; T
P53B
P1;
HIS
PPD
2A; C
KM
T1B
; ST
RC
; CA
TSP
ER
2;M
AP1
A; T
GM
7
Pur
ging
via
sub
stan
ces
fact
or c
ase/
cont
rol
913
0374
567
1306
1704
7SH
2D3C
3.00
E-0
678
rs51
4024
5.00
E-0
6A
G0.
061
0.01
30.
999
57.2
STX
BP
1; C
9orf
117;
PT
RH
1; T
TC
16;
TO
R2A
; C
DK
9; F
PG
S; E
NG
122
9406
878
2294
7868
8C
1orf
969.
90E
-05
84rs
1637
716.
80E
-05
GA
−0.0
880.
022
0.36
962
.2R
AB
4A;
SPH
AR
317
0075
515
1701
5188
5SK
IL1.
12E
-04
67rs
1310
1192
3.80
E-0
5G
C0.
074
0.01
80.
934
83.4
CL
DN
11
635
9112
9236
2005
67M
APK
131.
22E
-04
72rs
7752
459
8.10
E-0
5C
T−
0.09
30.
024
0.94
989
.8M
APK
14; S
LC
26A
8; B
RPF
3
1238
7105
5639
2994
20C
PNE
81.
44E
-04
269
rs86
4324
6.20
E-0
5A
G−
0.05
30.
013
0.97
753
.6A
LG
10B
195
5502
1051
736
AG
RN
1.71
E-0
419
rs75
4595
21.
68E
-04
AG
−0.
177
0.04
70.
303
94.3
C1o
rf15
9
812
4084
919
1242
2231
8W
DR
672.
08E
-04
200
rs23
8516
53.
80E
-05
AC
0.06
10.
015
1.00
075
.2FA
M93
A
613
1466
460
1316
0467
3A
KA
P73.
22E
-04
181
rs37
7747
48.
10E
-05
AG
0.05
40.
014
0.97
563
.7A
KA
P7
222
8549
925
2286
8228
0C
CL
203.
71E
-04
81rs
1338
5901
4.00
E-0
6C
A0.
096
0.02
10.
811
84.0
SLC
19A
3
311
9885
878
1199
6294
5G
PR15
64.
16E
-04
169
rs46
7682
21.
07E
-04
TG
−0.
101
0.02
60.
963
92.9
Int J Eat Disord. Author manuscript; available in PMC 2014 September 01.
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
Wade et al. Page 19
Chr
Star
t (b
p; h
g19/
Bui
ld 3
7)E
nd (
bp)
Mos
t as
soci
ated
gen
e in
blo
ckM
ost
asso
ciat
ed H
apM
ap (
II)
SNP
wit
hin
mos
t as
soci
ated
gen
eO
ther
gen
e(s)
ass
ocia
ted,
top
100
for
phen
otyp
eG
ene
nam
eG
ene
p- v
alue
# SN
Ps
SNP
nam
ep-
valu
eE
ffec
t al
lele
Oth
er a
llele
Eff
ect
=Bet
aSE
Impu
tati
on R
2E
ffec
t al
lele
freq
(%
)
514
0603
077
1408
9254
6PC
DH
B15
4.61
E-0
489
rs10
0449
361.
20E
-05
CT
−0.
151
0.03
50.
860
95.6
PCD
HB
14; S
LC
25A
2; T
AF7
; PC
DH
GA
* ;PC
DH
GB
*
221
6807
313
2169
6749
4PE
CR
5.90
E-0
411
3rs
9341
544.
20E
-05
TC
0.05
80.
014
0.97
869
.0M
RE
G; T
ME
M16
9
357
9941
2658
1579
77FL
NB
7.96
E-0
428
7rs
1307
7017
1.00
E-0
6C
T−
0.07
30.
015
0.93
371
.0
782
9932
2183
2783
24SE
MA
3E9.
90E
-04
425
rs27
1318
91.
39E
-04
CT
−0.
050
0.01
30.
996
53.9
14-i
tem
cas
e/co
ntro
l for
dis
orde
red
eati
ng b
ehav
iour
s
115
2184
557
1523
8672
8F
LG
2"0
" (n
ext
low
est
is3E
-6)
74rs
3120
667
1.66
E-0
6A
G−0
.118
0.02
50.
956
84.5
FL
G;
CR
NN
; H
RN
R
1091
0617
0591
1807
53IF
IT3
1.31
E-0
474
rs62
7524
1.83
E-0
5C
A−
0.07
60.
018
0.99
847
.8IF
IT1L
; IFI
T1;
IFI
T5;
IFI
T2
565
2223
8365
3768
50E
RB
B2I
P1.
42E
-04
134
rs25
1614
5.70
E-0
5C
G−
0.10
40.
026
0.85
285
.2E
RB
B2I
P
514
0588
290
1406
8361
2PC
DH
B15
2.15
E-0
489
rs29
1033
05.
07E
-04
GT
−0.
081
0.02
30.
990
83.6
PCD
HB
12; P
CD
HB
13; P
CD
HB
14;
SCL
25A
2
223
4160
216
2342
5570
1A
TG
16L
12.
65E
-04
128
rs67
5989
61.
70E
-04
AG
0.07
00.
019
0.86
358
.4SA
G
317
0075
515
1701
5188
5C
LD
N11
2.81
E-0
481
rs42
9223
12.
45E
-04
GC
0.09
20.
025
0.79
180
.4SK
IL
469
9572
1381
837
PCG
F33.
73E
-04
93rs
6816
483
7.00
E-0
4C
T−
0.06
40.
019
0.96
568
.5C
PLX
1; S
PON
2; K
IAA
1530
1010
2672
325
1028
0099
8L
ZT
S23.
81E
-04
63rs
8070
291.
86E
-04
CT
0.07
70.
021
0.86
972
.5FA
M17
8A; S
EM
A4G
; MR
PL43
; C10
orf2
;PD
ZD
7; S
FXN
3
1169
9244
0770
0534
86T
ME
M16
A4.
08E
-04
210
rs25
0917
59.
80E
-05
TA
0.10
60.
027
0.58
677
.8FA
DD
1918
0459
0418
1249
11K
CN
N1
4.53
E-0
476
rs48
0810
53.
67E
-04
CT
−0.
065
0.01
80.
980
67.4
CC
DC
124;
AR
RD
C2
415
6587
877
1567
2805
6G
UC
Y1B
35.
09E
-04
139
rs17
0335
852.
52E
-04
GA
0.12
80.
035
0.36
678
.4G
UC
Y1A
3
1627
4719
3328
0748
30G
SG1L
5.18
E-0
431
2rs
1645
336
1.24
E-0
3T
C−
0.06
80.
021
0.99
875
.7G
TF3
C1;
KIA
A05
56
195
5502
1051
736
C1o
rf15
95.
70E
-04
31rs
6689
308
5.62
E-0
4A
G−
0.08
70.
025
0.88
583
.9A
GR
N
1738
2716
840
4625
3A
TP2
A3
5.97
E-0
485
rs99
1420
32.
96E
-04
GA
0.21
90.
060
0.45
895
.2Z
ZE
F1
1954
5542
554
5686
7Z
NR
F47.
27E
-04
69rs
5295
153.
76E
-03
AG
0.07
40.
025
0.46
952
.3Z
NR
F4
469
6817
2869
6966
20U
GT
2B10
9.71
E−
0462
rs93
2903
41.
29E
-03
TC
0.09
60.
030
0.82
789
.6U
GT
2B10
Not
e:
* = m
any
gene
s in
that
fam
ily
Int J Eat Disord. Author manuscript; available in PMC 2014 September 01.
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
Wade et al. Page 20
Tabl
e 4
Rep
licat
ion
of p
revi
ous
stud
ies:
Per
-SN
P as
soci
atio
n p-
valu
es f
or S
NPs
rep
orte
d as
soci
ated
with
AN
in p
revi
ous
liter
atur
e (a
s la
bele
d) w
here
ava
ilabl
e in
our
ana
lysi
s. r
s674
386
(fro
m B
row
n et
al)
was
not
avai
labl
e, o
bser
ved
or im
pute
d. I
mpu
ted
dosa
ges
cove
r al
l ~25
57 p
heno
type
d in
divi
dual
s. O
bser
ved
geno
type
s co
ver
~121
7 ph
enot
yped
indi
vidu
als
(rs1
7725
255,
238
3378
, rs8
3099
8); ~
1497
(rs
5331
23);
othe
rwis
e ~2
550
(les
s m
inor
dro
pout
for
eac
h ph
enot
ype)
.
Rep
orte
d SN
P
p-va
lues
for
Ano
rexi
a N
ervo
sa s
pect
rum
Fac
tor
case
/Con
trol
p-va
lues
for
Bul
imia
Ner
vosa
spe
ctru
m c
ase/
Con
trol
p-va
lues
for
Tab
let
Pur
ging
fac
tor
case
/Con
trol
p-va
lues
for
14-
item
cas
e/C
ontr
ol d
isor
dere
dea
ting
beh
avio
urIm
pute
dM
AF
(%
) -
here
MA
F (
%)i
nre
fere
nced
pape
r [A
Nca
se;
cont
rol]
obse
rved
gen
otyp
es10
00G
dos
age
obse
rved
gen
otyp
es10
00G
dos
age
obse
rved
gen
otyp
es10
00G
dos
age
obse
rved
gen
otyp
es10
00G
dos
age
SNPs
ass
ocia
ted
in T
able
1 o
f W
ang
et a
l6
rs69
5988
80.
038
0.03
50.
950
0.84
60.
300
0.20
70.
330
0.24
311
.815
; 11
rs17
7252
550.
074
0.05
10.
104
0.10
00.
440
0.66
90.
990
0.58
612
.514
; 11
rs10
4940
670.
870
0.85
20.
650
0.65
80.
062
0.06
10.
260
0.26
56.
13;
6
rs23
8337
80.
460
0.80
90.
660
0.62
10.
810
0.10
00.
780
0.14
437
.235
; 41
rs41
0644
0.73
00.
708
0.20
00.
180
0.46
00.
408
0.64
00.
562
45.7
41; 4
7
rs44
7980
60.
320
0.34
60.
670
0.68
70.
250
0.30
50.
450
0.53
88.
76;
10
rs95
7788
0.80
00.
805
0.25
00.
250
0.24
00.
334
0.58
00.
643
33.2
37; 3
1
rs83
0998
0.17
00.
147
0.13
70.
975
0.42
00.
348
0.81
00.
372
20.7
23; 1
9
rs67
8202
90.
810
0.88
70.
570
0.53
00.
570
0.59
50.
470
0.51
823
.219
; 24
rs51
2089
0.87
00.
844
0.19
00.
234
1.00
00.
897
0.49
00.
610
25.6
28; 2
4
rs38
0898
60.
400
0.38
60.
860
0.84
40.
510
0.50
30.
980
0.99
46.
95;
8
SNPs
ass
ocia
ted
in B
row
n et
al24
rs56
9356
0.84
10.
511
0.99
90.
683
13.3
?
rs85
6510
0.55
10.
785
0.56
40.
591
31.9
?
SNPs
ass
ocia
ted
(in
Japa
nese
) in
Nak
abay
ashi
et a
l25
rs20
4833
20.
696
0.26
20.
711
0.82
431
.1?
SNPs
whi
ch W
ang
et a
l6 in
vest
igat
ed (
as p
roxi
es f
or S
NPs
ass
ocia
ted
by B
row
n et
al)
rs53
3123
0.16
00.
993
0.27
00.
903
0.38
00.
905
0.09
00.
857
18.9
21.7
; 18.
6
rs75
3226
60.
640
0.66
70.
660
0.67
00.
830
0.79
90.
880
0.84
331
.231
.1; 3
2.0
SNPs
whi
ch W
ang
et a
l6 in
vest
igat
ed (
as p
roxi
es f
or m
arke
rs a
ssoc
iate
d in
Nak
abay
ashi
et a
l)
rs66
0456
80.
490
0.51
70.
260
0.27
50.
750
0.76
00.
790
0.78
327
.928
.0; 2
9.7
rs90
6281
0.09
90.
111
0.01
10.
010
0.03
50.
036
0.01
00.
010
22.1
?
Int J Eat Disord. Author manuscript; available in PMC 2014 September 01.
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
NIH
-PA Author Manuscript
Wade et al. Page 21
Rep
orte
d SN
P
p-va
lues
for
Ano
rexi
a N
ervo
sa s
pect
rum
Fac
tor
case
/Con
trol
p-va
lues
for
Bul
imia
Ner
vosa
spe
ctru
m c
ase/
Con
trol
p-va
lues
for
Tab
let
Pur
ging
fac
tor
case
/Con
trol
p-va
lues
for
14-
item
cas
e/C
ontr
ol d
isor
dere
dea
ting
beh
avio
urIm
pute
dM
AF
(%
) -
here
MA
F (
%)i
nre
fere
nced
pape
r [A
Nca
se;
cont
rol]
obse
rved
gen
otyp
es10
00G
dos
age
obse
rved
gen
otyp
es10
00G
dos
age
obse
rved
gen
otyp
es10
00G
dos
age
obse
rved
gen
otyp
es10
00G
dos
age
Bod
y D
issa
tisfa
ctio
n (B
D)
phen
otyp
e SN
Ps (
with
p<
10−
5 ) f
rom
Tab
le I
II in
Bor
aska
et a
l.13E
AF
from
pap
er(%
)
rs68
9426
80.
740.
601
0.41
0.59
90.
270.
994
0.74
0.31
631
.935
.4
Bul
imia
phe
noty
pe S
NPs
(w
ith p
<10
−5 )
fro
m T
able
III
in B
oras
ka e
t al.13
rs76
2432
70.
210.
205
0.65
0.63
50.
540.
567
0.71
0.76
010
.99.
8
“OC
PD”
phen
otyp
e SN
Ps (
with
p<
10−
5 ) f
rom
Tab
le I
II in
Bor
aska
et a
l.13
rs76
9046
70.
910.
931
0.01
60.
017
0.09
30.
094
0.54
0.53
229
.228
.5
rs18
9811
10.
870.
850
0.00
460.
0043
0.01
60.
016
0.00
760.
008
17.0
16.3
rs10
5192
010.
910.
927
0.38
0.38
00.
130.
125
0.91
0.92
113
.713
.2
rs15
5730
50.
560.
563
0.34
0.35
10.
780.
835
0.94
0.82
436
.937
.2
Wei
ght F
luct
uatio
n (W
F) p
heno
type
SN
Ps (
with
p<
10−
5 ) f
rom
Tab
le I
II in
Bor
aska
et a
l.13
rs48
5364
30.
190.
198
0.42
0.42
10.
590.
577
0.43
0.45
718
.417
.8
rs21
8361
0.19
0.20
70.
560.
584
0.68
0.79
70.
670.
633
41.2
42.9
Int J Eat Disord. Author manuscript; available in PMC 2014 September 01.