Featured Research

from universities, journals, and other organizations

Study Links Regions Of Two Chromosomes To Susceptibility For Type Of Autism

Date:
June 9, 2005
Source:
Cincinnati Children's Hospital Medical Center
Summary:
Cincinnati Children's Hospital Medical Center study links regions of two chromosomes to susceptibility for a type of autism characterized by regression in development.

CINCINNATI -- A new Cincinnati Children's Hospital Medical Center study links regions of two chromosomes to susceptibility for a type of autism characterized by regression in development. Developmental regression can include the loss of previously acquired language, social skills or both.

Related Articles


Moreover, the study is the first to identify involvement of chromosome 21 in this type of autism. This may explain the increased prevalence of autism spectrum disorders (ASD) among children with Down syndrome, who have an extra copy of chromosome 21 and are 10 times more likely to have an ASD than the general population.

The findings represent "the important first step in identifying genetic variants that may contribute to susceptibility to this specific type of ASD," says Cindy Molloy, M.D., lead author of the study. Dr. Molloy is a physician at Cincinnati Children's in the Center for Epidemiology and Biostatistics and in the division of developmental disabilities.

The study is published in the online edition of the journal Molecular Psychiatry.

Dr. Molloy and colleagues in the division of human genetics examined a national database and DNA bank of hundreds of families with ASD. They identified 32 pairs of siblings, one trio of siblings and one pair of cousins who showed definite evidence of regression at the age of approximately 18 to 24 months. They confirmed previous evidence for linkage with ASD on chromosome 7 and found new evidence for susceptibility on chromosome 21 in this subset of ASD families. The research team is now sequencing genes in those regions to find the specific genetic variant that either contributes to susceptibility or modifies the disease.

"Among children with autism or ASD, 20 to 30 percent have a history of regression," says Dr. Molloy. "We think this represents a genetically distinct subgroup."

The Autism Society of Greater Cincinnati has just awarded Dr. Molloy a $40,000 grant to continue this research and extend it to families in the Cincinnati area.

Autism is a complex developmental disability that affects an individual in the areas of social interaction and communication. Autism is a spectrum disorder that affects each individual differently and to varying degrees of severity. As many as 1.5 million Americans - children and adults - are thought to have autism today, according to the Autism Society of America.


Story Source:

The above story is based on materials provided by Cincinnati Children's Hospital Medical Center. Note: Materials may be edited for content and length.


Cite This Page:

Cincinnati Children's Hospital Medical Center. "Study Links Regions Of Two Chromosomes To Susceptibility For Type Of Autism." ScienceDaily. ScienceDaily, 9 June 2005. <www.sciencedaily.com/releases/2005/06/050608052944.htm>.
Cincinnati Children's Hospital Medical Center. (2005, June 9). Study Links Regions Of Two Chromosomes To Susceptibility For Type Of Autism. ScienceDaily. Retrieved January 24, 2015 from www.sciencedaily.com/releases/2005/06/050608052944.htm
Cincinnati Children's Hospital Medical Center. "Study Links Regions Of Two Chromosomes To Susceptibility For Type Of Autism." ScienceDaily. www.sciencedaily.com/releases/2005/06/050608052944.htm (accessed January 24, 2015).

Share This


More From ScienceDaily



More Mind & Brain News

Saturday, January 24, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Smart Wristband to Shock Away Bad Habits

Smart Wristband to Shock Away Bad Habits

Reuters - Innovations Video Online (Jan. 23, 2015) — A Boston start-up is developing a wristband they say will help users break bad habits by jolting them with an electric shock. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
Amazing Technology Allows Blind Mother to See Her Newborn Son

Amazing Technology Allows Blind Mother to See Her Newborn Son

RightThisMinute (Jan. 23, 2015) — Not only is Kathy seeing her newborn son for the first time, but this is actually the first time she has ever seen a baby. Kathy and her sister, Yvonne, have been legally blind since childhood, but thanks to an amazing new technology, eSight glasses, which gives those who are legally blind the ability to see, she got the chance to see the birth of her son. It&apos;s an incredible moment and an even better story. Video provided by RightThisMinute
Powered by NewsLook.com
One Dose, Then Surgery to Test Tumor Drugs Fast

One Dose, Then Surgery to Test Tumor Drugs Fast

AP (Jan. 23, 2015) — A Phoenix hospital is experimenting with a faster way to test much needed medications for deadly brain tumors. Patients get a single dose of a potential drug, and hours later have their tumor removed to see if the drug had any affect. (Jan. 23) Video provided by AP
Powered by NewsLook.com
The Best Bedtime Rituals For a Good Night's Sleep

The Best Bedtime Rituals For a Good Night's Sleep

Buzz60 (Jan. 22, 2015) — What you do before bed can effect how well you sleep. TC Newman (@PurpleTCNewman) has bedtime rituals to induce the best night&apos;s sleep. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins