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Hematologist discovers, names the 'Toms River' blood mutation in N.J. family
Date:6/16/2011

by Catherine A. Stolle, Ph.D., perform DNA sequencing on the infant's and the father's blood. The analysis revealed that a gene carrying the code for a subunit of hemoglobin had a rare mutation, not previously identified, which the study team named after Toms River, N.J., where the patient lives.

Further biochemical analysis provided new scientific knowledge of blood disorders.The Toms River mutation that leads to a different amino acid than that found in normal fetal hemoglobin fortunately had limited, temporary effects in the infant. When a similar chemical substitution occurs in the hemoglobin subunit gene that is expressed in adults, the health effects can be more sustained and serious.

"While this finding will not broadly change the way we do medicine, it helped us care for the child and counsel this family, added Weiss. "Perhaps this report may remind clinicians who encounter a healthy blue baby to consider explanations that don't involve a serious underlying disorder. In an unusual but mild case like this, an accurate diagnosis can spare babies and families unnecessary concern and inappropriate medical testing."


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Contact: John Ascenzi
Ascenzi@email.chop.edu
267-426-6055
Children's Hospital of Philadelphia
Source:Eurekalert

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