Dangerous brain tumors hijack the brain’s existing blood supply throughout their progression, by growing only within narrow potential spaces between and along the brain’s thousands of small blood vessels, new research shows for the first time.
Blood expression levels of genes targeted by the stress hormones called glucocorticoids could be a physical measure, or biomarker, of risk for developing Post-Traumatic Stress Disorder (PTSD), according to a new study.
Playing with the portions of good and not-so-good-for-you foods is better than trying to eliminate bad foods, according to a new study. The idea is to not give up entirely foods that provide pleasure but aren’t nutritious.
A Spanish missionary priest being treated for Ebola died Tuesday in a Madrid hospital amid a worldwide debate over who should get experimental Ebola treatments. After holding a teleconference with medical experts around the world, the WHO declared it is ethical to use unproven Ebola drugs and vaccines in the current outbreak.
Researchers have hijacked a defense system normally used by bacteria to fend off viral infections and redirected it against the human papillomavirus (HPV), the virus that causes cervical, head and neck, and other cancers.Using the genome editing tool known as CRISPR, the Duke University researchers were able to selectively destroy two viral genes responsible for the growth and survival of cervical carcinoma cells.
Scientists from the University of Leeds have discovered a gene that plays a vital role in blood vessel formation, research which adds to our knowledge of how early life develops. The discovery could also lead to greater understanding of how to treat cardiovascular diseases and cancer.
Researchers have discovered a previously unknown cardiac molecule that could provide a key to treating, and preventing, heart failure. The newly discovered molecule provides the heart with a tool to block a protein that orchestrates genetic disruptions when the heart is subjected to stress, such as high blood pressure.
Wrapping wound dressings around fingers and toes can be tricky, but for burn victims, guarding them against infection is critical. Today, scientists are reporting the development of novel, ultrathin coatings called nanosheets that can cling to the body’s most difficult-to-protect contours and keep bacteria at bay.
A large-scale University-led study involving more than 180,000 people shows that patients treated with a drug widely prescribed for type 2 diabetes can live longer than people without the condition. The findings indicate that a drug known as metformin, used to control glucose levels in the body and already known to exhibit anticancer properties, could offer prognostic and prophylactic benefits to people without diabetes.
A Purdue University study shows that Notch signaling, a key biological pathway tied to development and cell communication, also plays an important role in the onset of obesity and Type 2 diabetes, a discovery that offers new targets for treatment.
Cognitive abilities such as memory and attention are not only important after a stroke but also before. Previous studies have shown poor cardiovascular health can increase the risk of cognitive impairment such as problems in memory and learning. However, the opposite idea that cognitive impairment may impact cardiovascular health, specifically stroke, was not established before.
The World Health Organization on Friday declared the Ebola outbreak in West Africa to be an international public health emergency that requires an extraordinary response to stop its spread. The WHO announced the Ebola outbreak — the largest and longest in history — is worrying enough to merit being declared an international health emergency. WHO declared similar emergencies for the swine flu pandemic in 2009 and for polio in May.
Cancer cells that break away from tumors to go looking for a new home may prefer to settle into a soft bed. Some particularly enterprising cancer cells can cause a cancer to spread to other organs, called metastasis, or evade treatment to resurface after a patient is thought to be in remission. A team found that these so-called tumor-repopulating cells may lurk quietly in stiffer cellular environments, but thrive in a softer space.
Researchers with The Cancer Genome Atlas (TCGA) Research Network have completed the largest, most diverse tumor genetic analysis ever conducted, revealing a new approach to classifying cancers. The work not only revamps traditional ideas of how cancers are diagnosed and treated, but could also have a profound impact on the future landscape of drug development.
At least one part of the human brain may be able to process information the same way in older age as it does in the prime of life, according to new research conducted at the University of Adelaide. A study compared the ability of 60 older and younger people to respond to visual and non-visual stimuli in order to measure their "spatial attention" skills.
A nasal brush test can rapidly and accurately diagnose Creutzfeldt-Jakob disease (CJD), an incurable and ultimately fatal neurodegenerative disorder, according to a new study.
In the largest study of its kind, researchers suggests that in older people, not getting enough vitamin D may double the risk of developing dementia and Alzheimer’s disease.
Thinking about getting inked? Check the bottle first. The Food and Drug Administration is warning tattoo parlors, their customers and those buying at-home tattoo kits that not all tattoo ink is safe.
It's long been known that faulty BRCA genes greatly raise the risk for breast cancer. Now, scientists say a more recently identified, less common gene - called PALB2 - can do the same.
In this episode of Bioscience Technology This Week, News Editor Christina Jakubowski highlights the role of the protein GSK-3 in brain development and also reports that running, regardless of duration or speed, reduces death risk.
Scientists report they can crank up insect aggression simply by interfering with a basic metabolic pathway in the insect brain. Their study, of fruit flies and honey bees, shows a direct, causal link between brain metabolism (how the brain generates the energy it needs to function) and aggression.
Frogs, dogs, whales, snails can all do it, but humans and primates can't. Regrow nerves after an injury, that is— while many animals have this ability, humans don't. But now, new research suggests that a small molecule may be able to convince damaged nerves to grow and effectively rewire circuits.
The relationship between saturated fat and type 2 diabetes may be more complex than previously thought, according a study that claims saturated fatty acids can be associated with both an increased and decreased risk of developing the disease, depending on the type of fatty acids present in the blood.
A team of scientists has developed an entirely non-invasive technique that provides a view of blood flow in the brain. The tool could provide powerful insights into strokes and possibly Alzheimer's disease.
There is good news in attempts to halt HIV by growing, in patients, new immune systems lacking a gene that led to the first—and only—cured HIV patient. Using hematopoietic (blood) stem cells possessing a CCR5 gene mutation that blocks CD4 T cell entry of HIV, Calimmune—led by Nobel Laureate David Baltimore—has, for one year, safely begun growing new immune systems in patients.