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Results for search "DNA".

Health News Results - 22

Renters May Age Faster Than Homeowners, Study Finds

Renting a home, rather than owning it outright, may speed up the body's aging process, a new study suggests.

Researchers found that when compared with people who owned their home outright (no mortgage), those who rented showed signs of faster "biological aging" -- which meant their body cells and tissues were a bit "older."

On average, the impact was equivalent to just a small fract...

Blood Test Might Help Diagnose Parkinson's Disease Much Earlier

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 m...

Could Loss of the Y Chromosome Help Speed Cancers in Men?

It's common knowledge that loss is a part of male aging -- loss of hair, loss of muscle tone, loss of vision or hearing.

But men growing older also start losing the very thing that makes them biological males, their Y chromosome, and that can leave them more vulnerable to cancer, a new study says.

The loss of the Y chromosome can help cancer cells evade detection by the body's immun...

Traces of Human DNA Are Everywhere in the Environment

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...

A More Diverse Human Genome: The 'Pangenome'

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 47 d...

Smoking or Vaping? The DNA Damage May Be the Same

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.

Ep...

Your Dog's Behavior Is in Its DNA

Is your pooch a herder or a hunter? You can try taking them to a trainer, but new research shows much of their behavior is hardwired in their DNA.

For the new study, researchers analyzed DNA samples from more than 200 dog breeds and surveyed 46,000 pet-owners to try to suss out why certain breeds act the way they do.

"The largest, most successful genetic experiment that humans have ...

Unrelated Folks Who Look Alike Share Similar DNA

A person's unrelated lookalike, commonly known as a doppelganger, may actually share genes that affect not only how they appear, but also their behavior.

In a new study, scientists did DNA analysis on 32 sets of virtual twins -- people with strong facial similarities -- and found they possessed similar genetic variants.

"Our study provides a rare insight into human likeness by sho...

Major Gene Study Spots DNA Tied to Autism, Other Disorders

More than 70 genes are very strongly associated with autism and more than 250 are linked to the condition, a major new genetic analysis has revealed.

The analysis is the largest of its kind to date, involving more than 150,000 participants, including 20,000 diagnosed with autism.

The researchers found t...

Ancient DNA Points to Oral Herpes' Beginnings

While the herpes virus that causes lip sores is common today, it has been difficult for scientists to find traces of it among ancient remains.

Now, researchers report they have uncovered and sequenced four ancient herpes virus

  • By Cara Murez HealthDay Reporter
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  • July 28, 2022
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  • Could an Experimental Cancer Drug Help Treat Spinal Injury?

    A drug in development as a cancer therapy may also help the body regenerate damaged nerves after spinal injuries, new research suggests.

    Scientists at the University of Birmingham in the United Kingdom report that they used cell and animal models to show that the drug, dubbed

  • By Ellie Quinlan Houghtaling HealthDay Reporter
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  • July 18, 2022
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  • Gene Test Lets Some Colon Cancer Patients Safely Skip Chemo

    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...

    Nerve Gas Sarin Probably Caused Gulf War Syndrome

    After 30 years, researchers believe they finally have definitive evidence of the primary cause of Gulf War syndrome: exposure to low levels of the nerve gas sarin.

    Gulf War syndrome is blamed for leaving a quarter million veterans of the 1991 conflict with a disabling array of long-...

    Your Dog's Breed Has Little Influence on Behavior, Study Finds

    For the past couple of centuries, humans have been breeding dogs to meet specific physical characteristics - to make Golden Retrievers fluffy, to make Rottweilers muscular, or to make Chihuahuas tiny.

    Dog enthusiasts...

    Genetic Sign of Aging Linked to Risk of Fatal COVID

    It's known that certain chronic health conditions up the odds of death from COVID-19. Now, new research identifies another risk factor.

    Shorter telomeres are associated with an increased likelihood of death from COVID-19, particularly in older women, researchers say.

    Telomeres are protective caps on the end of chromosomes (DNA) that shorten with age. Previous research has linked

    More DNA Errors Seen in Brain Cells of Alzheimer's Patients

    Genetic mutations build up faster in the brain cells of Alzheimer's disease patients than in other people, new research reveals.

    The discovery could point the way to new Alzheimer's treatments.

    DNA errors called

  • By Robert Preidt HealthDay Reporter
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  • April 22, 2022
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  • Job Done: Scientists Fill in Missing Gaps to Complete Map of Human Genome

    The Human Genome Project produced the most complete map of human genetics ever assembled in 2003 - but that map still held many uncharted territories.

    It did not contain about 8% of the human genome, representing crucial regions and large gaps that have remained hidden from scientists.

    Now, an ambitious team of researchers has gone back and filled those empty spaces, assembling the ...

    Did Your Gene Screen Turn Up Dangerous DNA? Study Finds Real Risk Is Low

    Most gene variants that have been labeled "pathogenic" may make only a small difference in a person's risk of actually developing disease, a new study suggests.

    Scouring genetic data on more than 72,000 individuals,

    Scientists ID Genes That Make Your Fingerprints

    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...

    Zoo Study Finds Animal DNA Floating in Air

    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.

    "Capturing airb...

    Love Black Coffee & Dark Chocolate? It Could Be in Your DNA

    If you like your coffee black, it could be that your grandpa or your great-aunt did, too.

    A preference for black coffee and also for dark chocolate seems to lie in a person's genes, scientists report.

    It's not the taste that these individuals actually love, but it's because their genes enable them to metabolize

  • Cara Murez
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  • December 30, 2021
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  • Blood Test Spots Biological Markers for Schizophrenia

    Schizophrenia is a debilitating disease that can make navigating daily life a massive challenge, but a new blood test could flag it in its early stages, researchers say.

    Their analysis of blood samples identified epigenetic markers -- part of your DNA -- that differ between people with schizophrenia and those without the mental health disorder.

    The researchers developed a model to a...