Meet the team - Soma Das, Ph.D

Starting in this month's newsletter we will be taking a closer look at the various team members that comprise the University of Chicago Genetic Services.  First up is Soma Das, Ph.D., Professor and Director of the DNA Diagnostic laboratory.  Dr. Das received her B.Sc. in Health Sciences from the University of Ife, Nigeria, followed by her M.Sc. in Medical Genetics from the University of Glasgow, and her Ph.D.

Mutations in the DNA repair enzyme polynucleotide kinase 3’-phosphatase lead to both microcephaly and seizures without other obvious DNA repair phenotypes.

Intellectual disability and global developmental delay are particularly challenging genetic diagnostic challenges because of the presumed myriad of causes.  Microcephaly is a common finding in patients with intellectual disability.  Microcephaly vera is a rare cause of global developmental delay that is characterized by severe microcephaly, MRI with normal structures and without evidence of focal injury or degeneration, developmental delay and no other significant neurological sequelae.  The level of microcephaly involved is generally very severe, with head circu

Weaver syndrome - another overgrowth disorder due to defects in histone modification

The genetic basis for Weaver syndrome recently has been identified (Tatton-Brown et al., Oncotarget, 2011, 2:1127-1133 and Gibson et al., Am. J. Hum. Genet. 2012, 90:110-118) allowing now for the possibility of genetic testing for this disorder.  Weaver syndrome is a rare congenital developmental disorder that was first identified and described in two unrelated males in 1974 by Dr.

Getting a Diagnosis: One family's journey

Anne Mitchell sensed something was not quite right when the fetus in her first pregnancy did not move as she had been told to expect.  When her son Michael was born, he was extremely hypotonic and weak, requiring immediate intubation and a trip to the NICU.  Without any family history of similar issues, Anne and David Mitchell did not have any idea why Michael’s muscles were so weak.  After various tests all came back negative, Michael had a muscle biopsy at 4 weeks of age and was diagnosed with centronuclear myopathy.