Newborn Screening Gets Upgraded
As the 1997-98 two-year session of the legislature came to a close this
year, we were pleased to see a piece of prevention legislation (Senate Bill 537) get
approved by the legislature and signed by the Governor. After a year of being held in
suspense by the Assembly Appropriations committee, Senate Bill SB537
Genetic Diseases: Expanded Newborn Screening Program cleared committee in the final week
of the session and was approved by both houses of the legislature and forwarded for the
Governors signature.
This measure had been authored by Senator Leroy Greene in order to upgrade and expand the
existing newborn screening program. The changes stipulate the use of new technology called
Tandem Mass Spectography and it is expected that improvements in accuracy, repeatability,
and cost will be achieved by applying this new technique.
A bill to mandate a newborn screening program was originally authored many years ago by
then rookie Assemblyman Leroy Greene. Now Greene is a senior Senator and has just
completed serving his final term. The current screening program conducts tests on all
babies born in the state of California in order to determine if they may have been born
with a birth disorder. The current test methods are considered to be quite good, but,
during the last 30 or 40 years test technology has been greatly improved.
Now that the Governor has signed the SB537 measure, the newborn screening program will be
upgraded and at least 16 additional disorders and conditions could potentially be added to
the program. These disorders all into five categories: Cystic fibrosis; Biotinidase
defect; Urea cycle defect; Organic acid defect; and Fatty acid oxidation defects. All of
the disorders and conditions being considered for addition to the screening program are
conditions which are genetically inherited.
Cystic Fibrosis Early detection of Cystic Fibrosis can prevent
hospitalization. With delayed detection, the disease often leads to prolonged periods of
hospitalization for the person involved. Currently, there is no known cure for Cystic
Fibrosis. The incidence is one case out of every 2,000 live births This means that
there are about 300 new cases of Cystic Fibrosis occurring in California every year.
Biotinidase Defects All detected cases are treatable and curable. Detection
is key. Without screening, the infant usually has brain damage before the disorder is
discovered, and before treatment can be started. Screening of newborns for the lack of
Biotin (required for brain growth) can be very meaningful. The incidence of this disorder
is one case per 15,000 live births 40 new cases in California per year.
Urea Cycle Defects There are three defects of the urea cycle that are
understood enough for consideration. Two are treatable, one is fatal. Detection and
treatment of these two treatable disorders can minimize progressive brain damage.
Organic Acid Defects These are serious metabolic disorders which can be
treated. These diseases are usually fatal without treatment.
Fatty Acid Oxidation Disorders This type of disorder is treatable,
life-saving, and curable. It is an inherited disorder. After the initial diagnosis is made
within a family, one can anticipate a recurrence risk of 25%. Once again, newborn testing
is obviously of great benefit because it identifies the problem before brain damage
occurs.
THANK YOU FOR YOUR SUPPORT
The Arc-California wishes to express its appreciation to
those who took the time to communicate to the author
(LeRoy Greene), their own legislator, and/or the governor
regarding this bill. Without this input of support, it
is doubtful that the bill would have been approved.
Thank You!!!
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November / December 1998
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