Study links regions of two chromosomes to susceptibility for type of autism

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.

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 resear

Contact: Jim Feuer
Cincinnati Children's Hospital Medical Center

Page: 1 2

Related medicine news :

1. Study, meta-analysis examine factors associated with death from heatstroke
2. Study says COPD testing is not measuring up
3. Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinsons symptoms
4. Study reveals gaps in vaccine financing for underinsured children
5. Study suggests nonpharmaceutical interventions may be helpful in severe influenza outbreaks
6. Study shows radiofrequency ablation highly effective in treating kidney tumors
7. Study says normal but out-of-control enzyme may be culprit that signals some cells to become cancer
8. Study finds HIV protease inhibitor drugs may adversely affect the scaffolding of the cell nucleus
9. Study outlines how stroke, head injury can increase risk of Alzheimers disease
10. Study identifies new regulator of fat metabolism
11. Study shows Diachrome improves blood sugar control in people with type 2 diabetes

Post Your Comments:

(Date:10/13/2017)... ... October 13, 2017 , ... “The Journey: From the Mountains to ... to save lost souls in the Philippines. “The Journey: From the Mountains to the ... teacher of the Bible. She has taught all ages and currently teaches a class ...
(Date:10/12/2017)... Del. (PRWEB) , ... October 12, 2017 , ... ... and advisory services for healthcare compliance program management, will showcase a range of ... National Association for Assisted Living (NCAL) Convention and Expo to be held October ...
(Date:10/12/2017)... , ... October 12, 2017 , ... Planet Fitness, one ... U.S., announced today its plans to open a flagship location in Covington, LA at ... former Rooms To Go store next to Office Depot in the Holiday Square shopping ...
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( https://isocomforter.com ... introduction of an innovative new design of the shoulder pad. The shoulder pad ... comfort while controlling your pain while using cold therapy. By utilizing ice and water ...
(Date:10/12/2017)... ... October 12, 2017 , ... Asante, a nationally ... care, have expanded their existing home health joint venture through an agreement, effective ... operating a joint venture home health company with Asante, delivering clinically integrated care, ...
Breaking Medicine News(10 mins):
(Date:9/19/2017)... 19, 2017 HistoSonics, Inc., a venture-backed medical device company developing a non-invasive, robotically ... announced three leadership team developments today:   ... ... Tom ... Veteran medical device executive Josh Stopek , PhD, who ...
(Date:9/18/2017)... , Sept. 18, 2017 EpiVax, ... of bioinformatics and immune engineering, today announced ... influenza A (H7N9) vaccine. ... to seasonal influenza and presents a challenge ... prior exposure to be effective. Using state-of-the-art ...
(Date:9/12/2017)... 12, 2017  Consumer reviews on the independent review site ... number one company for hearing aids, ranking it higher than ... ... by Consumers For Hearing Aids ... is an online store that provides high performance, state-of-the-art, German-engineered hearing ...
Breaking Medicine Technology:
Cached News: