Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New study examines link between pregnancy weight gain, autism spectrum disorders

28.10.2013
Can gaining weight during pregnancy provide clues into the cause of autism spectrum disorders?

New research from the University of Utah shows the answer to that question may be yes in some situations. Researchers have uncovered an association between autism spectrum disorders and a small increase in the amount of weight a mother gains during pregnancy. The results of the new study, "Maternal Prenatal Weight Gain and Autism Spectrum Disorders," are published in November edition of the journal Pediatrics.

Previous studies have identified links between women's prepregnancy body mass index (BMI) and pregnancy weight gain to an increased risk for the development of autism spectrum disorders (ASD) in children. But in the new study from University of Utah, researchers build on prior research by identifying an association between autism spectrum disorder risk and prenatal weight gain, after accounting for important related factors such as a woman's prepregnancy BMI.

"The risk of autism spectrum disorder associated with a modest yet consistent increase in pregnancy weight gain suggests that pregnancy weight gain may serve as an important marker for autism's underlying gestational etiology," said Deborah A. Bilder, M.D., lead author of the study and an assistant professor of psychiatry at the University of Utah. "These findings suggest that weight gain during pregnancy is not the cause of ASD but rather may reflect an underlying process that it shares with autism spectrum disorders, such as abnormal hormone levels or inflammation. …."

This small difference in pregnancy weight gain and the association with ASD was found in two separate study groups. Researchers carried out the study by comparing the cases of 8-year-olds living in Salt Lake, Davis and Utah counties. A group of 128 children diagnosed with autism spectrum disorders were compared to a control group of 10,920 children of the same age and gender. Researchers also examined a second sample group of 288 Utah children diagnosed with autism spectrum disorders and compared their data with that of unaffected siblings. In both scenarios, pregnancy weight gain patterns obtained from birth certificate records were identified as common factors in mothers who gave birth to children born with autism spectrum disorders. Such a small, but consistent finding suggests that these small changes in pregnancy weight gain and ASD may share the same underlying cause. The mother's BMI at the onset of pregnancy was not linked to ASD in either study group.

ASD data utilized for this study were taken from the Utah Registry of Autism and Developmental Disabilities, a Utah Department of Health (UDOH) registry. "Utilizing this database to study possible associations that may shed light on the causes of Autism Spectrum Disorder is essential," said Harper Randall, M.D., medical director at the Division of Family Health and Preparedness at UDOH. "

"The findings in this study are important because they provide clues to what may increase the risk of having an autism spectrum disorder and provide a specific direction for researchers to pursue as they search for the causes for autism spectrum disorders," said Bilder. "Doctors have known for a long time that proper nutrition is essential to a healthy pregnancy. Pregnant women should not change their diet based on these results. Rather, this study provides one more piece for the autism puzzle that researchers are exploring."

Autism spectrum disorders are neurobehavioral disorders manifested by a range of impaired social interactions, abnormal language development, and stereotypic behavior and interests. According to the most recent statistics from the Utah Department of Health, estimates show that 1 in 63 Utah children have an autism spectrum disorder. Another study by the CDC released in 2012 suggests the risk may be even higher, estimating Utah's rate at one in 47. Autism spectrum disorder is no longer considered a rare disorder. It is now recognized in 1 to 2 percent of our population. "This calls for further investigation of its underlying etiology as a public health concern," said Bilder.

In addition to Bilder, other authors on the study include: Amanda V. Bakian, Ph.D.; Joseph Viskochil, M.Ed.; Erin A.S. Clark, M.D.; Elizabeth L. Botts, M.D.; Ken R. Smith, Ph.D.; Richard Pimentel, MSCS; William M. McMahon, M.D. and Hilary Coon, Ph.D.

Melinda Rogers | EurekAlert!
Further information:
http://www.utah.edu

More articles from Studies and Analyses:

nachricht Do microplastics harbour additional risks by colonization with harmful bacteria?
05.04.2018 | Leibniz-Institut für Ostseeforschung Warnemünde

nachricht Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

Im Focus: Basel researchers succeed in cultivating cartilage from stem cells

Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.

Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...

Im Focus: Like a wedge in a hinge

Researchers lay groundwork to tailor drugs for new targets in cancer therapy

In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Magnetic nano-imaging on a table top

20.04.2018 | Physics and Astronomy

Start of work for the world's largest electric truck

20.04.2018 | Interdisciplinary Research

Atoms may hum a tune from grand cosmic symphony

20.04.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>