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Tufts Medical Center researchers finds marker in premies' saliva predicts readiness to feed by mouth
Date:5/21/2012

BOSTON (May 21) -- Tufts Medical Center researchers have shown that presence of a gene strongly linked to appetite regulation is highly predictive of a premature infant's readiness to feed orally. An analysis of just a drop of an infant's saliva could be the key to preventing many feeding problems and the expensive medical complications that can occur when infants are fed by mouth too early.

In a study published in the May 21 edition of the journal PLoS ONE, Maron and colleagues have identified a biomarker in saliva that predicts a baby is not yet ready to feed 95 percent of the time. The biomarker, a gene for the neuropeptide Y2 receptor, NPY2R, is a known regulator of feeding behavior. In their study, the researchers demonstrated that levels of NPY2R in saliva decline as a newborn matures enough to feed orally.

"There's a really important need for a better understanding and a more accurate assessment of infants' feeding skills, '' said Jill L. Maron, MD, MPH, a researcher at the Mother Infant Research Institute at Tufts Medical Center. "Nearly every baby born early is at risk for feeding associated morbidities, which often lead to prolonged hospitalizations, short and long term health complications, and significant parental anxiety. This is a way of monitoring the most vulnerable babies very non-invasively. We can help guide clinical care without ever hurting them.''

Currently, caregivers use a variety of subjective measurements, such as evaluating a baby's sucking and swallowing skills, to determine when it's safe to feed a baby by mouth. But these methods are imprecise and often lead to feeding a baby too early, which can cause the child to choke, accidentally inhale breast milk or formula into their lungs leading to pneumonia, or other problems. Babies who suffer these early feeding difficulties can also go on to develop long-term feeding problems and are at risk of developmental delays. Research indicates that mo
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Contact: Julie Jette
jjette@tuftsmedicalcenter.org
617-636-3265
Tufts Medical Center
Source:Eurekalert

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