Genetic brain malformations recapitulate phylogeny
1Department of Radiology, University of Illinois, Chicago.
Abstract:
It is generally difficult to establish whether a congenital brain malformation has a genetic basis or is due to other factors. A thesis has been developed, that brain malformations with a genetic basis recapitulate phylogeny. In order to validate this thesis a retrospective CT investigation of brain dysmorphology was carried out in 50 cases of dysgenesis of the corpus callosum, 20 cases of the holoprosencephaly complex, 25 cases of Dandy-Walker malformation, and 50 cases of miscellaneous brain anomalies. This group was compared with 100 neonates with brain damage from acquired causes. The results strongly suggest that a brain malformation that recapitulates phylogeny is very likely to be based on genetic aberration.
Related Concept Videos
Neurulation
Genomic Imprinting and Inheritance
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Evolutionary Relationships through Genome Comparisons
Synteny and Evolution
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral chromosome underwent...
Teratogenicity


