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Published on: November 21, 2013
Minor physical anomalies in schizophrenia and bipolar affective disorder
1Department of Psychiatry and Medical Psychology, Faculty of Medicine, University of Pécs, Ret u. 2, 7623 Pécs, Hungary. trixler@neuro.pote.hu
Objective:
The prevalence of minor physical anomalies (MPAs) (prenatal errors of morphogenesis) was evaluated in patients with schizophrenia and bipolar affective disorder.
Method:
A new modification of the Waldrop-scale was used to detect the presence or absence of 57 MPAs in 30 patients with schizophrenia, 30 with bipolar disorder, and in 30 matched normal controls.
Results:
Patients with schizophrenia compared to normal controls had significantly higher rates of three minor malformations (furrowed tongue, flat occiput, primitive shape of ears) and those of one phenogenetic variant (wide distance between toes 1 and 2), and they also had a significantly higher rate of one minor malformation (primitive shape of ears), as compared to patients with bipolar disorder. In patients with bipolar disorder, furrowed tongue was significantly more common than in controls.
Conclusions:
These results support an 'early' neuro-developmental model of schizophrenia.
Insights
Patients with schizophrenia exhibit more minor physical anomalies (MPAs) than controls, suggesting early neurodevelopmental issues. Bipolar disorder patients also showed increased MPAs compared to healthy individuals.
Area of Science:
- Neurodevelopmental disorders
- Psychiatry
- Genetics
Background:
- Minor physical anomalies (MPAs) are prenatal errors in morphogenesis.
- MPAs may serve as indicators of neurodevelopmental disturbances.
Purpose of the Study:
- To evaluate the prevalence of MPAs in schizophrenia and bipolar disorder.
- To investigate potential links between MPAs and these psychiatric conditions.
Main Methods:
- A modified Waldrop scale assessed 57 MPAs.
- Study included 30 schizophrenia patients, 30 bipolar disorder patients, and 30 controls.
Main Results:
- Schizophrenia patients had higher rates of furrowed tongue, flat occiput, primitive ear shape, and wide toe spacing compared to controls.
- Schizophrenia patients also showed a higher rate of primitive ear shape than bipolar disorder patients.
- Furrowed tongue was more common in bipolar disorder patients than in controls.
Conclusions:
- Findings support an early neuro-developmental model for schizophrenia.
- MPAs may be relevant biomarkers in psychiatric research.
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