Juvenile and late onset forms of depressive disorder: genetic and biological characterization of bipolar and unipolar illness-a review.

@article{Mendlewicz1979JuvenileAL,
  title={Juvenile and late onset forms of depressive disorder: genetic and biological characterization of bipolar and unipolar illness-a review.},
  author={Julien Mendlewicz},
  journal={Maturitas},
  year={1979},
  volume={1 4},
  pages={
          229-34
        }
}
The age of onset of depressive illness may have an association with the genetic character and clinical course of the disorder. There are several genetic models of depressive disorder that are based on differences in age of onset. According to a multifactorial model, for example, a late onset would indicate a small genetic and greater environmental component. A correlation has been found between positive family histroy of affective illness and early age of the first episode. The presence or… CONTINUE READING