News / Health

Scientists Find Gene for Form of Autism

Colleen Jankovich looks over her 11-year-old autistic son, Matthew, who is non-verbal and requires 24/7 care, in Omaha, Nebraska, May 23, 2014.
Colleen Jankovich looks over her 11-year-old autistic son, Matthew, who is non-verbal and requires 24/7 care, in Omaha, Nebraska, May 23, 2014.
Jessica Berman

Autism is a mysterious developmental disorder, whose cause is unknown. But for the first time, researchers have discovered a gene that's linked to the disorder in an estimated one half of one percent of patients. Their findings could lead to a way to do genetic testing for autism.

Children with mutations of the gene called CHD8 have a larger head size, wide-set eyes and gastrointestinal problems. In addition to their characteristic appearance, they experience sleep disturbances.

In a collaboration involving 13 institutions around the world, investigators examined more than 6,000 youngsters with autism spectrum disorder. They found 15 of the children had mutations to CHD8. All of those children had similar physical features.

Researchers confirmed the findings in experiments with zebra fish. They altered the CHD8 gene and fish were born with large heads and wide-set eyes. Investigators then fed the fish fluorescent pellets and saw they had problems eliminating waste and were constipated.

Researchers are calling the discovery "a game changer" because they believe it could lead to the discovery of hundreds more genetic mutations involved in the developmental disorder. In time, investigators predict gene tests could be offered families to help guide them on what to expect and how to care for a child with autism.

Currently, autism is diagnosed through watching a child's behavior.

Autism is marked by difficulties with social interaction, verbal and non-verbal communication and repetitive behaviors. It's called a spectrum disorder because some children are mildly autistic, a condition called Asperger's syndrome, while others are profoundly affected.

A study on the discovery of CHDH mutations was published in the biomedical journal Cell.

You May Like

Is Air Travel Safe?

Aviation expert says despite tragic losses of Malaysian Airlines flights 370 and 17, industry experienced lowest fatality rate in recorded history last year More

Multimedia 100 Days Later, Nigerian Girls Still Held

Activists holding rallies in Nigeria and several other countries to mark 100th day of captivity for more than 200 schoolgirls being held by Boko Haram More

Chocolate Too Bitter? Swap Sugar for Mushrooms

US food technology company develops fermentation process using mushrooms to reduce bitterness in cocoa beans, believes it will cut sugar content in candy More

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
US Carriers Suspend Travel to Israeli
X
Carolyn Presutti
July 23, 2014 1:21 AM
The United States is prohibiting American carriers from flying to Israel's airport in Tel Aviv for 24 hours, because of rising violence between Israel and Hamas militants. The action was announced on Tuesday, after a rocket fired by Hamas militants in the Gaza Strip landed near the airport. As VOA's Carolyn Presutti tells us, international officials soon may have to determine which combat zones are too dangerous for commercial flights.
Video

Video US Carriers Suspend Travel to Israel

The United States is prohibiting American carriers from flying to Israel's airport in Tel Aviv for 24 hours, because of rising violence between Israel and Hamas militants. The action was announced on Tuesday, after a rocket fired by Hamas militants in the Gaza Strip landed near the airport. As VOA's Carolyn Presutti tells us, international officials soon may have to determine which combat zones are too dangerous for commercial flights.
Video

Video NASA Focuses on Earth-Like Planets

For decades, looking for life elsewhere in the universe meant listening for signals that could be from distant civilizations. But recent breakthroughs in space technology refocused some of that effort toward finding planets that may harbor life, even in its primitive form. VOA’s George Putic reports on a recent panel discussion at NASA’s headquarters, in Washington.
Video

Video IAEA: Iran Turns its Enriched Uranium Into Less Harmful Form

Iran has converted its stockpiles of enriched uranium into a less dangerous form that is more difficult to use for nuclear weapons, according to the United Nations’ Atomic Energy Agency. The move complies with an interim deal reached with Western powers on Iran's nuclear program last year, in exchange for easing of sanctions. Henry Ridgwell reports for VOA from London.
Video

Video Relic of Saint Draws Catholics Worried About Immigration Issue

A Roman Catholic saint who is a figure of devotion for those crossing the border into the United States is attracting believers concerned about the plight of undocumented immigrants. Mike O'Sullivan reports from Los Angeles, where a relic of Saint Toribio has drawn thousands to local churches.
Video

Video US Awards Medal of Honor for Heroics in Bloodiest of Afghan Battles

U.S. combat troops are withdrawing from Afghanistan, on pace to leave the country by the end of this year. But on Monday, U.S. President Barack Obama took time to honor a soldier whose actions while under fire in Afghanistan earned him the Medal of Honor. VOA's Jeff Seldin has more from the Pentagon.
Video

Video Ukraine Rebels Surrender MH17 Black Boxes

After days of negotiations, a senior separatist leader handed over two black boxes from an airliner downed over eastern Ukraine to Malaysian experts early Tuesday. While on Monday, the U.N. Security Council unanimously demanded that armed groups controlling the crash site allow safe and unrestricted access to the wreckage.
Video

Video In Cambodia, HIV Diagnosis Brings Deadly Shame

Although HIV/AIDS is now a treatable condition, a positive diagnosis is still a life altering experience. In Cambodia, people living with HIV are often disowned by friends, family and the community. This humiliation can be unbearable. We bring you one Cambodian woman’s struggle to overcome a life tragedy and her own HIV positive diagnosis.
Video

Video Nature of Space Exploration Enters New Age

Forty-five years ago this month, the first humans walked on the moon. It was during an era of the space race between the United States and the Soviet Union. World politics have changed since then and -- as Elizabeth Lee reports -- so has the nature of space exploration.

AppleAndroid