A twin study of schizoaffective-mania, schizoaffective-depression, and other psychotic syndromes.
A twin study of schizoaffective-mania, schizoaffective-depression, and other psychotic syndromes.
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DOI:
10.1002/ajmg.b.32011
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发表时间:
2012-03
影响因子:
2.8
通讯作者:
McGuffin, Peter
中科院分区:
文献类型:
--
作者:
Cardno, Alastair G.;Rijsdijk, Fruehling V.;West, Robert M.;Gottesman, Irving I.;Craddock, Nick;Murray, Robin M.;McGuffin, Peter
The nosological status of schizoaffective disorders remains controversial. Twin studies are potentially valuable for investigating relationships between schizoaffective-mania, schizoaffective-depression and other psychotic syndromes, but no such study has yet been reported. We ascertained 224 probandwise twin pairs (106 monozygotic, 118 same-sex dizygotic), where probands had psychotic or manic symptoms, from the Maudsley Twin Register in London (1948–1993). We investigated Research Diagnostic Criteria schizoaffective-mania, schizoaffective-depression, schizophrenia, mania and depressive psychosis primarily using a non-hierarchical classification, and additionally using hierarchical and data-derived classifications, and a classification featuring broad schizophrenic and manic syndromes without separate schizoaffective syndromes. We investigated inter-rater reliability and co-occurrence of syndromes within twin probands and twin pairs. The schizoaffective syndromes showed only moderate inter-rater reliability. There was general significant co-occurrence between syndromes within twin probands and monozygotic pairs, and a trend for schizoaffective-mania and mania to have the greatest co-occurrence. Schizoaffective syndromes in monozygotic probands were associated with relatively high risk of a psychotic syndrome occurring in their co-twins. The classification of broad schizophrenic and manic syndromes without separate schizoaffective syndromes showed improved inter-rater reliability, but high genetic and environmental correlations between the two broad syndromes. The results are consistent with regarding schizoaffective-mania as due to co-occurring elevated liability to schizophrenia, mania and depression; and schizoaffective-depression as due to co-occurring elevated liability to schizophrenia and depression, but with less elevation of liability to mania. If in due course schizoaffective syndromes show satisfactory inter-rater reliability and some specific etiological factors they could alternatively be regarded as partly independent disorders.
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DOI:
10.1176/appi.ajp.2010.10030340
发表时间:
2011-01
期刊:
The American journal of psychiatry
影响因子:
--
作者:
Kendler KS;Aggen SH;Knudsen GP;Røysamb E;Neale MC;Reichborn-Kjennerud T
通讯作者:
Reichborn-Kjennerud T
影响因子:
6.6
作者:
Craddock, Nick;O'Donovan, M. C.;Owen, M. J.
通讯作者:
Owen, M. J.
影响因子:
4.4
作者:
Craddock N;Jones I;Kirov G;Jones L
通讯作者:
Jones L
影响因子:
105.7
作者:
Hutcheon, Jennifer A.;Chiolero, Arnaud;Hanley, James A.
通讯作者:
Hanley, James A.
DOI:
10.1007/bf02189965
发表时间:
1993-03-01
影响因子:
4.7
作者:
HILLER, W;DICHTL, G;VONZERSSEN, D
通讯作者:
VONZERSSEN, D