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This profile was last updated on 3/31/15  and contains information from public web pages and contributions from the ZoomInfo community.

Dr. Karoly S. Horvath

Wrong Dr. Karoly S. Horvath?

board certified

Local Address: Baltimore, Maryland, United States

Employment History

  • Director
    Nemours Children Celiac Center
  • Director of the Pediatric Gastrointestinal and Nutrition Laboratory
    University of Maryland
  • Gastrointestinal Specialist
    University of Maryland
  • Associate Professor, Pediatric Gastroenterologist, Co-Director, Center for Celiac Research
    University of Maryland
  • Director of the Pediatric Gastrointestinal and Nutrition Laboratory
    University of Maryland , Baltimore
  • Associate Professor of Pediatrics
    Peds GI & Nutrition Laboratory
  • Hahnemann University

Board Memberships and Affiliations

  • Director
    Peds GI & Nutrition Laboratory


  • M.D.
    University of Maryland at Baltimore
  • Ph.D.
  • MD
36 Total References
Web References
Karoly Horvath, ..., 31 Mar 2015 [cached]
Karoly Horvath, MD Gastroenterology - Pediatric, Orlando, FL
Photo of Karoly Horvath, MD
Karoly Horvath, MD, PhD, joined the Arnold Palmer Hospital for Children Center for Pediatric Digestive Health and Nutrition in 2011. Prior to moving to Orlando, Dr. Horvath served as the director of Nemours Children Celiac Center and the gastroenterology laboratory in A.I. DuPont Hospital for Children. He is board certified in pediatric gastroenterology. Additionally, Dr. Horvath is a published author with numerous published articles and book chapters in a variety of gastroenterology topics. He has dedicated many years to gastroenterology research and has taught at the University of Maryland and Hahnemann University in Philadelphia.
HealthScout-Death Rate Soars With Celiac Disease, 15 June 2002 [cached]
"They followed the first-degree relatives because it is well known that one-in-12 relatives of a celiac disease patient will have the disease," says one celiac disease expert, Dr. Karoly Horvath, the director of the Pediatric Gastrointestinal & Nutrition Laboratory at the University of Maryland in Baltimore."And it's also known that a lot of these relatives are undiagnosed."
People with this disease must stay on gluten-free diets or risk damaging their small intestine and losing the ability to absorb nutrients.The study found that the death rate for those who failed to stick to a gluten-free diet was six times higher than for those who had.
An estimated one-in-4 ,700 Americans has been diagnosed with celiac disease.
Often the disease has no symptoms, Karoly says."What happens with celiac disease is that it progresses very slowly.It's the first part of the 20 feet of intestine that absorbs nutrients and the disease progresses slowly down the length of the intestine.And if the lower intestine can compensate, which it does for a while, then there's no evident symptoms."
The study found the death rate was 2.6 times higher among those whose diagnosis was delayed for a year, and 3.8 times higher for those who weren't diagnosed for 10 years.
"The message in this study is that the more delayed the diagnosis of the disease, the more increased the mortality rate," Karoly says."And there was a perception in the medical community in the U.S. that there was no such thing as celiac disease in this country, though that's changing now."
"We did a survey in the mid-90's asking celiac patients when they had their first symptoms and when they were diagnosed with the disease," Karoly explains."The gap was 12 years.The problem is that, while using the screening techniques for celiac disease is quite routine in Europe, it has yet to be recognized as widely in the U.S."
What To Do
For more information on celiac disease, see the Celiac Disease Foundation or the National Institute of Diabetes and Digestive and Kidney Diseases.
SOURCES: Interviews with Elaine Monarch, executive director, Celiac Disease Foundation, Studio City, Calif.; Karoly Horvath, M.D., Ph.D., director, Pediatric Gastrointestinal and Nutrition Laboratory, University of Maryland, Baltimore; Aug. 4, 2001, The Lancet
FEATNEWS archives -- September 2001 (#4), 26 May 2002 [cached]
In the United States, Karoly Horvath, a gastrointestinal specialist at the University of Maryland, began researching secretin after it caused surprising changes in the child featured on NBC Dateline.In 1999, he reported that secretin produced a response in 27 of 36 autistic children with gastrointestinal symptoms.By then an unknown number of parents were giving the hormone off-label to their children, and concerned physicians were engaged in placebo-controlled trials.Although these were phase I studies to determine whether secretin is safe for children, each reported that various assessments failed to show more patients responding to secretin than to a placebo.
California CA, 26 Jan 2006 [cached]
* Karoly Horvath, M.D., Ph.D., Associate Professor, Pediatric Gastroenterologist, Co-Director, Center for Celiac Research, University of Maryland, Baltimore, Maryland Afternoon session with a focus on "The Celiac Diet":
PLUK News April/May 1999, 14 April 2006 [cached]
Interest in secretin began in 1996 when Dr. Karoly S. Horvath, director of the pediatric gastrointestinal and nutrition laboratory at the University of Maryland, Baltimore, administered intravenous secretin while examining an autistic child with chronic diarrhea.
Dr. Horvath gave secretin while assessing gastrointestinal complaints in two other children with autism and reported dramatic improvement in their behavior, manifested by improved eye contact, alertness, and expansion of expressive language in the next several weeks along with relief of gastrointestinal symptoms.
Secretin may influence blood flow in the brain and this may be the reason it has effects on the condition of autism. Dr. Horvath reports that brain imaging studies in one of his cases showed a marked postinfusion increase in cerebral blood flow in areas of the brain affecting language and social behavior. Secretin may also activate receptors for a related hormone, vasoactive intestinal polypeptide, which is more widely distributed in the brain. Dr. Horvath speculates that a single dose of secretin is unlikely to change the brain of a child with autism, but it could possible trigger a cascade of other neuropeptides in some children and in this way have more lasting effects.
Dr. Horvath will shortly finish data collection on a study of secretin use in 30 children.
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