As it stands, no one blood test or brain scan can definitively diagnose Parkinson's disease.
But researchers report this may soon change if a new blood test continues to show promise.
The test measures DNA damage in the mitochondria of cells, which is known to be higher in people with Parkinson’s disease. Earlier research from the same group also showed there is an accumulation of...
Detailed remnants of human DNA can be found just about everywhere that people have been, a surprising finding that raises a host of ethical issues for researchers, a new study says.
Environmental samples of human DNA were found nearly everywhere, save for isolated islands and remote mountaintops where people have never visited, researchers said. While sequencing this DNA offers researcher...
Last year, gene researchers made news by announcing the completion of the first complete sequence of the human genome.
That effort has now been expanded, with researchers using that success as a springboard to create a comprehensive and sophisticated collection of genome sequences that more accurately captures human diversity.
The new “pangenome” includes the genome sequences of...
A new study builds upon earlier evidence that vaping isn't any healthier than smoking.
In analyzing epithelial cells taken from the mouths of vapers, smokers and people who had never vaped or smoked, researchers found that vapers and smokers had more than twice the amount of DNA damage as found in non-users.
Those who vaped or smoked more frequently had higher DNA damage.
A blood test could save some colon cancer patients from getting unnecessary chemotherapy following surgery, while making sure that those who would benefit from the treatment get it, researchers report.
The circulating tumor DNA (ctDNA) test looks for minute amounts of genetic material that are released by...
Your fingerprints may be more than a surefire way to identify you: New research suggests their patterns may be linked to genes that guide limb development.
"People may wonder why our team is working on fingerprints," said co-senior study author Sijia Wang, a geneticist at the Shanghai Institute of Nutrition and Health in China. "We started the work purely out of curiosity. But later it tu...
Take a whiff of the air in a zoo and you could breathe in the animals' DNA -- not just the smell of the food they eat or their waste, a new study suggests.
Sampling the air from local zoos, two teams of researchers collected enough DNA to identify the animals nearby. They say their study could potentially become a valuable, noninvasive tool to track biodiversity.
Dogs may be man's best friend, but cats may hold critical keys to humans' health.
Our feline friends have the potential to become a valuable model for genetic research, because their genome is similar to that of people, according to Leslie Lyons of the Feline Genetics Laboratory at the University of Missouri in Columbia.
"Using cats in research is really overlooked, since people don...
It turns out that it harbors valuable information about modern-day gut health.
An international research group led by the University of Bologna in Italy analyzed ancient DNA samples extracted from 50,000-year-old sedimentary feces, the oldest sample of fecal material available. They collected the matter in El Salt (Spain), a site wher...
While childhood obesity is a significant challenge, German researchers have uncovered some hopeful news while investigating the impact of genes.
Though some "obesity genes" do play a minor role in the success of weight loss interventions, environmental, social and behavioral factors make the biggest difference, according to a new study from the Technical University of Munich.
Results from a long-term study of a gene therapy technique to prevent inherited mitochondrial disease show promise, researchers say.
Studies of the technique at Oregon Health & Science University in Portland show no adverse health effects in rhesus macaque monkeys and their offspring. The researchers said the technique could break the cycle of disease passed from mother to baby through mu...
Although much of the genetic makeup of humans has been mapped, hundreds of missing DNA sequences remain.
Scientists from the U.S. National Human Genome Research Institute report they have produced the complete DNA sequence of a single human chromosome. That discovery could allow researchers to sequence the entire human genome.
Genetic mutations that put some younger people at high risk for severe illness from the new coronavirus will be investigated in an international study.
Plans call for enrolling 500 patients worldwide who are under age 50, have been diagnosed with COVID-19 and admitted to an intensive care unit, and have no underlying health problems such as diabetes, heart disease or lung disease.
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 identify the cause.
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.