Could the DNA from a patient's breast tumor help doctors spot whether stray cancer cells are still in her blood?
That's what a small, new study suggests is possible. If the findings are replicated in a larger study, such a test might help determine whether a treatment is working or not. It also has the potential to reduce unnecessary additional treatments for breast cancer.
You might think that stress affects you only emotionally or that a lack of sleep simply leaves you feeling cranky. But these are among the many lifestyle factors that can lead to health problems because of changes that they cause within your body's cells.
Packed inside every cell is your DNA and its strands of chromosomes. Chromosomes are protected, top and bottom, by sections called ...
For women, predicting when they'll reach menopause is anyone's guess. But if you want to get some foresight, you should ask your mother.
For most women, menopause begins at around 52. But for thousands of women it starts much later, and for some, a lot earlier. Those whose menopause starts later may also be looking at a longer life expectancy, researchers have found.
When couples experience recurrent pregnancy loss, it's natural for them to want to know why. Now, a new study suggests that sperm DNA damage could be a factor.
Recurrent pregnancy loss is defined as the consecutive loss of three or more pregnancies before 20 weeks' gestation. It affects up to 2 percent of couples and, in many cases, it is difficult to ident...
The controversy over a Chinese scientist who claimed he created gene-edited babies has prompted the U.S. National Institutes of Health to join an international moratorium on such research.
"Today, leading scientists and ethicists from seven countries have called for an international moratorium on the use of genetic editing to modify the human germline for clinical purposes," NIH Direc...
A large, new study has uncovered 24 genetic variations that help separate the apple-shaped people from the pear-shaped ones.
Researchers said the findings help explain why some people are prone to carrying any excess weight around the belly. But more importantly, they could eventually shed light on the biology of diseases linked to obesity -- particularly abdominal obesity.
Mating with Neanderthals helped boost modern humans' ability to fight novel viruses in Europe and Asia, a new study contends.
Before vanishing about 40,000 years ago, Neanderthals interbred with modern humans who had migrated out of Africa. As a result, many modern Europeans and Asians have about 2 percent of Neanderthal DNA in their genomes, the researchers explained.
Only a small percentage of Americans have had their DNA analyzed -- but many are tempted to try it, according to new research.
For the study, University of Michigan researchers surveyed nearly 1,000 adults aged 50 to 64. While curious about their ancestry or health risks, the majority said they fear they'll worry excessively if they learn they have genetic links to progressive diseas...
Evolutionary changes in the human brain may be responsible for psychiatric illnesses such as schizophrenia and bipolar disorder, new research suggests.
The researchers identified long, noncoding stretches of DNA (called "repeat arrays") in a gene that governs calcium transport in the brain. Their findings were published Aug. 9 in the American Journal of Human Genetics.
In a tragic twist of canine fate, researchers report that dogs that lived in the Americas for thousands of years were wiped out after Europeans arrived on the continent.
"This study demonstrates that the history of humans is mirrored in our domestic animals. People in Europe and the Americas were genetically distinct, and so were their dogs. And just as indigenous people in the Americ...
If you're considering at-home DNA testing, there are some things you need to know, California State University experts say.
The popular tests are found in nearly every drugstore in the country, ranging in price from $60 to $100. People use them to learn more about their family heritage, discover unknown relatives or learn their potential risk for certain diseases.