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Congenital dermatoglyphic malformations in severe bipolar disorder
B Gutiérrez1, J Van Os, V Vallès
1Unitat d'Antropologia, Facultat de Biologia, Universitat de Barcelona, Spain.
Psychiatry Research
|July 10, 1998
Summary
Early prenatal developmental disruptions, indicated by dermatoglyphic anomalies like ridge dissociation and abnormal features, are linked to bipolar disorder risk. These findings suggest developmental issues may precede the onset of this psychiatric illness.
Area of Science:
- Psychiatry
- Genetics
- Developmental Biology
Background:
- Dermatoglyphic alterations are potential markers for early prenatal disturbances.
- These disturbances are hypothesized to contribute to the etiology of psychiatric disorders.
Purpose of the Study:
- To investigate the association between specific dermatoglyphic malformations and bipolar disorder.
- To explore if dermatoglyphic traits correlate with age of onset in bipolar disorder patients.
Main Methods:
- Assessed ridge dissociation (RD) and abnormal features (AF) in 118 bipolar patients and 216 controls.
- Measured total finger ridge count (TFRC) and total a-b ridge count (TABRC).
- Compared dermatoglyphic traits between patient and control groups.
Main Results:
- Bipolar patients exhibited a significant excess of RD and AF compared to controls (OR = 2.80).
- The presence of these anomalies was associated with an earlier age of onset in bipolar cases.
- No significant differences were found for TFRC and TABRC between groups.
Conclusions:
- Findings support the hypothesis that early developmental disruption is a risk factor for bipolar disorder.
- Specific congenital dermatoglyphic malformations may serve as indicators of prenatal disturbances relevant to bipolar disorder etiology.