Minor physical anomalies in affective disorders. A review of the literature
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Published on: December 2, 2015
Tamás Tényi1, Mátyás Trixler, Györgyi Csábi
1Department of Psychiatry and Psychotherapy, University of Pécs, Hungary. tamas.tenyi@aok.pte.hu
Background:
The increased frequency of MPAs may be external markers of abnormal brain development in affective disorders.
Methods:
A MEDLINE, psychInfo and Web of Science search was evaluated to collect all publications on the prevalence of minor physical anomalies in bipolar affective disorder and unipolar major depression.
Aims:
As reports on the prevalence of MPAs in affective disorders were controversial, were based on highly different number of patients and were evaluated by the use of scales with different sensitivities, we considered as important to review the current state of knowledge and to recommend directions to further research.
Results:
14 publications on 12 studies were found after a careful literature search. 5 studies have dealt with the prevalence of MPAs in bipolar affective disorder, 3 have reported on examinations among patients with unipolar major depression, while 5 publications on 3 studies combined patients with bipolar affective disorder, schizoaffective disorder and unipolar major depression. 1 study was published on the prevalence of MPAs among mood disorders, without the differentiation of the data of patients with bipolar affective disorder and unipolar major depression.
Limitations:
Few studies with relatively small size were published, there is no data on the distinction between bipolar I and bipolar II disorders.
Conclusion:
The reviewed data suggest a higher probability of the role of an aberrant neurodevelopment in bipolar affective disorder and a smaller in unipolar major depression.
Insights
Minor physical anomalies (MPAs) may indicate abnormal brain development in affective disorders. Research suggests a stronger link in bipolar disorder than unipolar depression, though studies are limited.
Area of Science:
- Neuroscience
- Psychiatry
- Genetics
Background:
- Minor physical anomalies (MPAs) are potential external markers of abnormal brain development.
- Affective disorders, including bipolar disorder and unipolar major depression, may be associated with increased MPA prevalence.
Purpose of the Study:
- To review the current knowledge on MPA prevalence in affective disorders.
- To address controversies and inconsistencies in existing research.
- To recommend future research directions.
Main Methods:
- A comprehensive literature search was conducted using MEDLINE, PsycINFO, and Web of Science.
- Publications focusing on the prevalence of MPAs in bipolar affective disorder and unipolar major depression were included.
- Studies with varying patient numbers and sensitivity scales were evaluated.
Main Results:
- 14 publications from 12 studies were identified.
- Prevalence data for MPAs were analyzed across bipolar disorder, unipolar depression, and combined mood disorder groups.
- Some studies combined data, limiting specific comparisons.
Conclusions:
- Existing studies on MPA prevalence in affective disorders are limited by small sample sizes.
- Aberrant neurodevelopment appears more probable in bipolar affective disorder than in unipolar major depression.
- Further research is needed, particularly distinguishing between bipolar I and bipolar II disorders.
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