
Am J Psychiatry 160:636-645, April 2003
© 2003 American Psychiatric Association
The Endophenotype Concept in Psychiatry: Etymology and Strategic Intentions
Irving I. Gottesman, Ph.D., Hon. F.R.C.Psych., and
Todd D. Gould, M.D.
Endophenotypes, measurable components unseen by the unaided eye along the pathway between disease and distal genotype, have emerged as an important concept in the study of complex neuropsychiatric diseases. An endophenotype may be neurophysiological, biochemical, endocrinological, neuroanatomical, cognitive, or neuropsychological (including configured self-report data) in nature. Endophenotypes represent simpler clues to genetic underpinnings than the disease syndrome itself, promoting the view that psychiatric diagnoses can be decomposed or deconstructed, which can result in more straightforwardand successfulgenetic analysis. However, to be most useful, endophenotypes for psychiatric disorders must meet certain criteria, including association with a candidate gene or gene region, heritability that is inferred from relative risk for the disorder in relatives, and disease association parameters. In addition to furthering genetic analysis, endophenotypes can clarify classification and diagnosis and foster the development of animal models. The authors discuss the etymology and strategy behind the use of endophenotypes in neuropsychiatric research and, more generally, in research on other diseases with complex genetics.
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S.-S. Chang, C.-M. Liu, S.-H. Lin, H.-G. Hwu, T. J. Hwang, S. K. Liu, M. H. Hsieh, S.-C. Guo, and W. J. Chen
Impaired Flush Response to Niacin Skin Patch Among Schizophrenia Patients and Their Nonpsychotic Relatives: The Effect of Genetic Loading
Schizophr Bull,
January 1, 2009;
35(1):
213 - 221.
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M. Huisman, A. J Oldehinkel, A. de Winter, R. B Minderaa, A. de Bildt, A. C Huizink, F. C Verhulst, and J. Ormel
Cohort Profile: The Dutch 'TRacking Adolescents' Individual Lives' Survey'; TRAILS
Int. J. Epidemiol.,
December 1, 2008;
37(6):
1227 - 1235.
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M. He, Y.-M. Hur, J. Zhang, X. Ding, W. Huang, and D. Wang
Shared Genetic Determinant of Axial Length, Anterior Chamber Depth, and Angle Opening Distance: The Guangzhou Twin Eye Study
Invest. Ophthalmol. Vis. Sci.,
November 1, 2008;
49(11):
4790 - 4794.
[Abstract]
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C. Henquet, M. Di Forti, P. Morrison, R. Kuepper, and R. M. Murray
Gene-Environment Interplay Between Cannabis and Psychosis
Schizophr Bull,
November 1, 2008;
34(6):
1111 - 1121.
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C. C.Y Wong and G. Schumann
Genetics of addictions: strategies for addressing heterogeneity and polygenicity of substance use disorders
Phil Trans R Soc B,
October 12, 2008;
363(1507):
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Y. Zheng, J. Ge, G. Huang, J. Zhang, B. Liu, Y.-M. Hur, and M. He
Heritability of Central Corneal Thickness in Chinese: The Guangzhou Twin Eye Study
Invest. Ophthalmol. Vis. Sci.,
October 1, 2008;
49(10):
4303 - 4307.
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L. Menzies, G. B. Williams, S. R. Chamberlain, C. Ooi, N. Fineberg, J. Suckling, B. J. Sahakian, T. W. Robbins, and E. T. Bullmore
White Matter Abnormalities in Patients With Obsessive-Compulsive Disorder and Their First-Degree Relatives
Am J Psychiatry,
October 1, 2008;
165(10):
1308 - 1315.
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L. Almasy, R. C. Gur, K. Haack, S. A. Cole, M. E. Calkins, J. M. Peralta, E. Hare, K. Prasad, M. F. Pogue-Geile, V. Nimgaonkar, et al.
A Genome Screen for Quantitative Trait Loci Influencing Schizophrenia and Neurocognitive Phenotypes
Am J Psychiatry,
September 1, 2008;
165(9):
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E. J. C. G. van den Oord, P.-H. Kuo, A. M. Hartmann, B. T. Webb, H.-J. Moller, J. M. Hettema, I. Giegling, J. Bukszar, and D. Rujescu
Genomewide Association Analysis Followed by a Replication Study Implicates a Novel Candidate Gene for Neuroticism
Arch Gen Psychiatry,
September 1, 2008;
65(9):
1062 - 1071.
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C. A. Hodgkinson, Q. Yuan, K. Xu, P.-H. Shen, E. Heinz, E. A. Lobos, E. B. Binder, J. Cubells, C. L. Ehlers, J. Gelernter, et al.
Addictions Biology: Haplotype-Based Analysis for 130 Candidate Genes on a Single Array
Alcohol Alcohol.,
September 1, 2008;
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W. P. Horan, J. J. Blanchard, L. A. Clark, and M. F. Green
Affective Traits in Schizophrenia and Schizotypy
Schizophr Bull,
September 1, 2008;
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856 - 874.
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S. R. Chamberlain, L. Menzies, A. Hampshire, J. Suckling, N. A. Fineberg, N. del Campo, M. Aitken, K. Craig, A. M. Owen, E. T. Bullmore, et al.
Orbitofrontal Dysfunction in Patients with Obsessive-Compulsive Disorder and Their Unaffected Relatives
Science,
July 18, 2008;
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421 - 422.
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K. M. Prasad and M. S. Keshavan
Structural Cerebral Variations as Useful Endophenotypes in Schizophrenia: Do They Help Construct "Extended Endophenotypes"?
Schizophr Bull,
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S. K. Hill, M. S. H. Harris, E. S. Herbener, M. Pavuluri, and J. A. Sweeney
Neurocognitive Allied Phenotypes for Schizophrenia and Bipolar Disorder
Schizophr Bull,
July 1, 2008;
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S. Heckers
Making Progress in Schizophrenia Research
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July 1, 2008;
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G. K. Thaker
Neurophysiological Endophenotypes Across Bipolar and Schizophrenia Psychosis
Schizophr Bull,
July 1, 2008;
34(4):
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P.-I Lin and B. D. Mitchell
Approaches for Unraveling the Joint Genetic Determinants of Schizophrenia and Bipolar Disorder
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G. Thaker
Psychosis Endophenotypes in Schizophrenia and Bipolar Disorder
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July 1, 2008;
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M. Rietschel, L. Beckmann, J. Strohmaier, A. Georgi, A. Karpushova, F. Schirmbeck, K. V. Boesshenz, C. Schmal, C. Burger, R. A. Jamra, et al.
G72 and Its Association With Major Depression and Neuroticism in Large Population-Based Groups From Germany
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June 1, 2008;
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