HOME >> BIOLOGY >> NEWS
Early dexamethasone exposure has long-term neurodevelopment, neuroendocrine effects

(June 28, 2004) -- Bethesda, MD -- Any parent of a newborn with extremely low birth weight (ELBW) faces the possibility that their child will be diagnosed with severe respiratory distress syndrome, which results in ventilator and/or oxygen dependency, and subsequent onset of chronic lung disease. Until recently, early administration of a prolonged course of postnatal dexamethasone was recommended to decrease the pulmonary inflammatory process during the early neonatal period. This approach changed, however, following a Taiwanese study that demonstrated a significant increase in neurodevelopmental dysfunction in neonates treated with dexamethasone.

Background

The Taiwanese conclusions were reached within the context that the window of exposure to dexamethasone in critically ill ELBW infants spans an extensive period of perinatal viability, ranging from 24 to 40 weeks post-conception. It is during this time that the human brain undergoes significant structural and functional transformations, thereby making it particularly vulnerable to external influences.

Clinical studies examining acute dexamethasone effects on physiology and central nervous system function in premature infants have been limited.

Past research into premature infants who received prolonged dexamethasone therapy experience reduced linear growth, decreased weight gain, and smaller head circumferences. During the acute phase of dexamethasone exposure, changes in gross neuromotor function have also been noted. As a result, use of dexamethasone to improve pulmonary function in ventilator-dependent ELBW infants is undergoing significant modification towards more judicious treatment dexamethasone therapy is given less often and shorter courses are now used.

The concern remains that little is known about dexamethasone effects on long-term neurodevelopment. For obvious reasons, human testing is not desired. Researchers have previously developed a rat mo
'"/>

Contact: Mayer Resnick
mresnick@the-aps.org
301-634-7209
American Physiological Society
29-Jun-2004


Page: 1 2 3 4

Related biology news :

1. Berkeley Lab soil scientist Margaret Torn receives Presidential Early Career Award
2. Early detection hope for eye disease
3. Early clinical treatment can halt progression of Alzheimers disease, UCI researchers find
4. Early predictor of breast cancer aggressiveness
5. Early treatment confirmed as key to stroke recovery
6. Early identification of kidney disease cost-effective only when directed at high-risk patients
7. Early promise for treatment of Ebola
8. Early treatment can prevent severe vision loss in premature infants
9. Early hominids may have behaved more human than we had thought
10. Early infection and rejection detection
11. Early-life environments shape development of stress behaviors and learning abilities in mice

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/4/2017)... April 4, 2017   EyeLock LLC , a ... the United States Patent and Trademark Office (USPTO) has ... the linking of an iris image with a face ... represents the company,s 45 th issued patent. ... very timely given the multi-modal biometric capabilities that have ...
(Date:3/30/2017)... YORK , March 30, 2017 Trends, ... type (physiological and behavioral), by technology (fingerprint, AFIS, iris ... voice recognition, and others), by end use industry (government ... and immigration, financial and banking, and others), and by ... Europe , Asia Pacific , ...
(Date:3/24/2017)... The Controller General of Immigration from Maldives Mr. Mohamed ... received the prestigious international IAIR Award for the most innovative high security ... ... Maldives Immigration Controller General, ... picture on the right) have received the IAIR award for the "Most ...
Breaking Biology News(10 mins):
(Date:6/20/2017)... Pa. , June 20, 2017  Kibow Biotech ... pleased to announce the issuance of a new patent ... or hyperuricemia by the U.S. Patent and Trademark Office ... a winner of the Buzz of Bio award in ... is akin to developing non-drug approaches to chronic disease. ...
(Date:6/19/2017)... NJ (PRWEB) , ... June 19, 2017 , ... ... innovative solutions for clinical development reported today that it is launching two new ... The company will be demonstrating new capabilities at the DIA 2017 Annual Meeting ...
(Date:6/16/2017)... ... 2017 , ... CTNext , Connecticut’s go-to resource for entrepreneurial support, today ... at Chelsea Piers in Stamford. , Nine finalists, all of whom are Connecticut-based companies ... opportunity to secure $10,000 awards to help support business growth. The winners included:, ...
(Date:6/15/2017)... (PRWEB) , ... June 15, 2017 , ... ... business director for DuPont Biofuels, will be speaking at Bloomberg’s 2017 Sustainable ... will join other leading environmental and sustainability officials on a panel titled “Developing ...
Breaking Biology Technology:
Cached News: