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Data show a decline in cystic fibrosis since introduction of prenatal carrier screening
Date:2/27/2008

A brief report in the February 28, 2008, New England Journal of Medicine, led by researchers at the New England Newborn Screening Program (NENSP) of the University of Massachusetts Medical School (UMMS), indicates a declining incidence of a genetic disease, providing what may be the first demonstration of a link between two independent population-based screening programs.

The state of Massachusetts has offered universal newborn screening to detect cystic fibrosis (CF) since 1999. Independently, recommendations for nationwide (adult) carrier screening for CF were introduced in the U.S. around 2002, coming from the National Institutes of Health, the American College of Obstetrics and Gynecology and the American College of Medical Genetics. Newborn screening for cystic fibrosis (much like newborn screening for other conditions), a public health service geared toward improving the lives of babies born with treatable conditions, identifies infants across the state who are at risk for disease and ensures that these infants are referred for diagnostic evaluation and (when appropriate) care. Tracking the number of infants who are diagnosed with the disease is an integral part of quality assurance of the newborn screening program.

Using the Massachusetts newborn screening data, the researchers compared two four-year periods: 1999 to 2002, just before prenatal CF carrier screening came into wide practice, and 2003 to 2006.

The number of live-born infants with CF dropped by about 50 percent from one four-year period to the next. Moreover, among the babies who were born with CF, markedly fewer had two copies of the delta F508 gene mutation, associated with a severe form of CF. The authors, who work closely with the clinician directors of the five Massachusetts CF Centers at Baystate Medical Center in Springfield; Childrens Hospital Boston; Massachusetts General Hospital; New England Medical Center; UMass Memorial Health Care in Worcester;
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Contact: Mark Shelton
mark.shelton@umassmed.edu
508-856-2000
University of Massachusetts Medical School
Source:Eurekalert

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