Evidence map›Paper›PMID 24831852›Full record

ArticleJournal of psychiatric research2014

The role of leptin, melanocortin, and neurotrophin system genes on body weight in anorexia nervosa and bulimia nervosa.

Zeynep Yilmaz, Allan S Kaplan, Arun K Tiwari, Robert D Levitan, Sara Piran, Andrew W Bergen, Walter H Kaye, Hakon Hakonarson, Kai Wang, Wade H Berrettini and 17 more

Open access · greenAbstract read
In one paragraph

Article in Journal of psychiatric research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Association ofJournal of clinical medicine · 2024
    Article
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  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. TheFrontiers in neuroscience · 2019
    Review
  13. Article
  14. Article
  15. Review
  16. Contemporary views on the genetics of anorexia nervosa.European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology · 2016
    Review
  17. Peptides from adipose tissue in mental disorders.World journal of psychiatry · 2014
    Review
  18. Homeostasis in anorexia nervosa.Frontiers in neuroscience · 2014
    Article
  19. Genetics and Epigenetics of Eating Disorders.Advances in genomics and genetics
    Article
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

27 authors at 19 institutions in 5 countries.

Zeynep YilmazDepartment of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Clinical Research Department, Centre for Addiction and Mental Health, Toronto, Canada.
Allan S KaplanClinical Research Department, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada.
Arun K TiwariNeurogenetics Section, Centre for Addiction and Mental Health, Toronto, Canada.
Robert D LevitanInstitute of Medical Science, University of Toronto, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Mood and Anxiety Program, Centre for Addiction and Mental Health, Toronto, Canada.
Sara PiranFaculty of Medicine, University of Ottawa, Ottawa, Canada.
Andrew W BergenCenter for Health Sciences, SRI International, Menlo Park, CA, USA.
Walter H KayeDepartment of Psychiatry, University of California, San Diego, CA, USA.
Hakon HakonarsonJoseph Stokes Jr. Research Institute, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Kai WangDepartment of Psychiatry, University of Southern California, Los Angeles, CA, USA.
Wade H BerrettiniDepartment of Psychiatry, Center of Neurobiology and Behavior, University of Pennsylvania, Philadelphia, PA, USA.
Harry A BrandtDepartment of Psychiatry, Sheppard Pratt Health System, Towson, MD, USA.
Cynthia M BulikDepartment of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Steven CrawfordDepartment of Psychiatry, Sheppard Pratt Health System, Towson, MD, USA.
Scott CrowDepartment of Psychiatry, University of Minnesota, Minneapolis, MN, USA.
Manfred M FichterDepartment of Psychiatry, University of Munich (LMU), Munich, Germany; Roseneck Hospital for Behavioral Medicine, Prien, Germany.
Katherine A HalmiDepartment of Psychiatry, Weill Cornell Medical College, New York, NY, USA.
Craig L JohnsonEating Recovery Center, Denver, CO, USA.
Pamela K KeelDepartment of Psychology, Florida State University, Tallahassee, FL, USA.
Kelly L KlumpDepartment of Psychology, Michigan State University, East Lansing, MI, USA.
Pierre MagistrettiBrain Mind Institute, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
James E MitchellDepartment of Clinical Neuroscience, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, USA; Neuropsychiatric Research Institute, Fargo, ND, USA.
Michael StroberDepartment of Psychiatry, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.
Laura M ThorntonDepartment of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Janet TreasureDepartment of Academic Psychiatry, King's College London, Institute of Psychiatry, London, United Kingdom.
D Blake WoodsideDepartment of Psychiatry, University of Toronto, Toronto, Canada; Eating Disorders Program, Toronto General Hospital, Toronto, Canada.
Joanne KnightInstitute of Medical Science, University of Toronto, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Neurogenetics Section, Centre for Addiction and Mental Health, Toronto, Canada.
James L KennedyInstitute of Medical Science, University of Toronto, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Neurogenetics Section, Centre for Addiction and Mental Health, Toronto, Canada. Electronic address: james_kennedy@camh.net.
University of Toronto · CACentre for Addiction and Mental Health · CASheppard Pratt Health System · USUniversity of North Carolina at Chapel Hill · USChildren's Hospital of Philadelphia · USCornell University · USÉcole Polytechnique Fédérale de Lausanne · CHFlorida State University · USKing's College London · GBLudwig-Maximilians-Universität München · DEMichigan State University · USOklahoma State University Center for Health Sciences · USThe Recovery Center · USUniversity of California, Los Angeles · USUniversity of California, San Diego · USUniversity of Minnesota · USUniversity of North Dakota · USUniversity of Ottawa · CAUniversity of Southern California · US

Funding

Obesity and Energy Metabolism CoreP30DK050456 · NIDDK · UNIVERSITY OF MINNESOTA TWIN CITIES · PI BERNLOHR, DAVID A · 1995 to 2015
$17.0M
Postdoctoral Research Training in Eating DisordersT32MH076694 · NIMH · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BULIK, CYNTHIA M · 2007 to 2016
$1.8M
CIHR 200910GSD-248658-174637NIDDK NIH HHS P30 DK050456NIMH NIH HHS T32 MH076694NIMH NIH HHS T32MH076694
6 · The paper itself

Abstract

objectiveAlthough low weight is a key factor contributing to the high mortality in anorexia nervosa (AN), it is unclear how AN patients sustain low weight compared with bulimia nervosa (BN) patients with similar psychopathology. Studies of genes involved in appetite and weight regulation in eating disorders have yielded variable findings, in part due to small sample size and clinical heterogeneity. This study: (1) assessed the role of leptin, melanocortin, and neurotrophin genetic variants in conferring risk for AN and BN; and (2) explored the involvement of these genes in body mass index (BMI) variations within AN and BN.

methodOur sample consisted of 745 individuals with AN without a history of BN, 245 individuals with BN without a history of AN, and 321 controls. We genotyped 20 markers with known or putative function among genes selected from leptin, melanocortin, and neurotrophin systems.

resultsThere were no significant differences in allele frequencies among individuals with AN, BN, and controls. AGRP rs13338499 polymorphism was associated with lowest illness-related BMI in those with AN (p = 0.0013), and NTRK2 rs1042571 was associated with highest BMI in those with BN (p = 0.0018). DISCUSSION: To our knowledge, this is the first study to address the issue of clinical heterogeneity in eating disorder genetic research and to explore the role of known or putatively functional markers in genes regulating appetite and weight in individuals with AN and BN. If replicated, our results may serve as an important first step toward gaining a better understanding of weight regulation in eating disorders.

Indexed as

AdultAgouti-Related ProteinAnorexia NervosaBody Mass IndexBody WeightBulimia NervosaCase-Control StudiesFemaleGenotyping TechniquesHumansLeptinMelanocortinsMembrane GlycoproteinsMiddle AgedNerve Growth FactorsPolymorphism, Single NucleotideAgouti-Related ProteinAGRP protein, humanLeptinMelanocortinsMembrane GlycoproteinsNerve Growth FactorsProtein KinasesProtein-Tyrosine KinasesReceptor, trkBtropomyosin-related kinase-B, humanAnorexia nervosaBody weightBulimia nervosaCandidate gene associationMelanocortinsNeurotrophins

Identifiers

PMID24831852
PMCPMC4191922
OpenAlexW2100113686

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.