Featured Research

from universities, journals, and other organizations

Researchers Continue To Find Genes For Type 1 Diabetes

Date:
October 17, 2008
Source:
Children's Hospital of Philadelphia
Summary:
Genetics researchers have identified two novel gene locations that raise the risk of type 1 diabetes. As they continue to reveal pieces of the complicated genetic puzzle for this disease, the researchers expect to improve predictive tests and devise preventive strategies.

Genetics researchers have identified two novel gene locations that raise the risk of type 1 diabetes. As they continue to reveal pieces of the complicated genetic puzzle for this disease, the researchers expect to improve predictive tests and devise preventive strategies.

"As we add to our knowledge of the biology of type 1 diabetes and better understand details of the disease's genetic risk, we will be able to develop better diagnostic tests that meaningfully predict who will develop diabetes," said study leader Hakon Hakonarson, M.D., Ph.D., director of the Center for Applied Genomics at The Children's Hospital of Philadelphia.

The study appeared online Oct. 7 in Diabetes, the journal of the American Diabetes Association. Hakonarson's co-leader in the study was Constantin Polychronakos, M.D., director of Pediatric Endocrinology at McGill University in Montreal.

Type 1 diabetes, formerly called juvenile diabetes, usually begins in childhood, when the body's immune system malfunctions and destroys insulin-producing beta cells in the pancreas. Without insulin, blood sugar levels run out of control and can impair blood flow and damage the eyes, nerves and kidneys. It is second only to asthma as the most common chronic disease in American children. Patients are dependent for life on insulin injections or insulin medications.

Type 1 diabetes is a complex disease, in which a variety of genes interact with each other to cause the biological events in the immune system that remove the body's control of blood sugar levels. Over the past two years, large research collaborations, including groups led by Hakonarson and Polychronakos, have used highly automated, sophisticated gene-scanning tools to pinpoint genes implicated in the disease.

Based on initial data from previous researchers, scientists in the current study refined their search in DNA samples of thousands of patients, family members and control subjects from Philadelphia, other parts of North America, Canada, Europe and Australia. The genotyping work identified two new gene locations associated with type 1 diabetes.

The genes at those locations, UBASH2A, on chromosome 21, and BACH2, on chromosome 6, are active in immune cells that play key roles in autoimmune disorders such as type 1 diabetes. "Much work remains to be done to discover exactly how these genes may function in molecular pathways involved in diabetes, but the genes are apparently biologically relevant to the disease," said Hakonarson.

Hakonarson expects that increasingly advanced genotyping technology will reveal the remaining undiscovered genes that contribute to type 1 diabetes. "We believe we have captured the vast majority of common gene variants in the disease," he added. "We are now focusing on rare gene variants. As we increase the number of known genes, we will be able to develop better diagnostic tests. Furthermore, as we better understand the gene pathways that give rise to type 1 diabetes, this knowledge may suggest ways to intervene early in life with therapies that target those pathways and prevent the disease from developing."

Funding support for the project came from The Children's Hospital of Philadelphia, the Juvenile Diabetes Research Foundation International, Genome Canada (through the Ontario Genomics Institute), the National Institutes of Health and the Cotswold Foundation. In addition to his position at Children's Hospital, Hakonarson also is on the faculty of the University of Pennsylvania School of Medicine, as are many of his co-authors. Other co-authors collaborated from several Canadian hospitals and research institutions.


Story Source:

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


Cite This Page:

Children's Hospital of Philadelphia. "Researchers Continue To Find Genes For Type 1 Diabetes." ScienceDaily. ScienceDaily, 17 October 2008. <www.sciencedaily.com/releases/2008/10/081014114844.htm>.
Children's Hospital of Philadelphia. (2008, October 17). Researchers Continue To Find Genes For Type 1 Diabetes. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2008/10/081014114844.htm
Children's Hospital of Philadelphia. "Researchers Continue To Find Genes For Type 1 Diabetes." ScienceDaily. www.sciencedaily.com/releases/2008/10/081014114844.htm (accessed October 22, 2014).

Share This



More Health & Medicine News

Wednesday, October 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) Is your child ready? Video provided by Working Mother
Powered by NewsLook.com
U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

Newsy (Oct. 22, 2014) Now that the U.S. is restricting travel from West Africa, some are dropping questions about a travel ban and instead asking about visa bans. Video provided by Newsy
Powered by NewsLook.com
US to Track Everyone Coming from Ebola Nations

US to Track Everyone Coming from Ebola Nations

AP (Oct. 22, 2014) Stepping up their vigilance against Ebola, federal authorities said Wednesday that everyone traveling into the US from Ebola-stricken nations will be monitored for symptoms for 21 days. (Oct. 22) Video provided by AP
Powered by NewsLook.com
Doctors Help Paralysed Man Walk Again, Patient in Disbelief

Doctors Help Paralysed Man Walk Again, Patient in Disbelief

AFP (Oct. 22, 2014) Polish doctors describe how they helped a paralysed man walk again, with the patient in disbelief at the return of sensation to his legs. Duration: 1:04 Video provided by AFP
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