A repression of gene activity in the brain appears to be an early event affecting people with Alzheimer's
Disease, researchers have found. In mouse models of Alzheimer's
Disease, this epigenetic block
Slowing or preventing the development of Alzheimer's
Disease, a fatal brain condition expected to hit one in 85 people globally by 2050, may be as simple as ensuring a brain protein's sugar levels are
The famous Iceman mummy known as Ötzi was genetically predisposed to cardiovascular
Diseases, according to recent studies. Not only was this genetic predisposition demonstrable in the 5,000-y
The immune system protects from infections by detecting and eliminating invading pathogens. These two strategies form the basis of conventional clinical approaches in the fight against infectious dise
For 50 years, scientists had searched for the secret to making tiny implantable devices that could travel through the bloodstream. Engineers have now demonstrated a wirelessly powered device that just
Sudden cardiac death -- catastrophic and unexpected fatal heart stoppage -- is more likely to occur shortly after waking in the morning and in the late night. In a new study, an international consorti
Researchers have developed a new injectable hydrogel that could be an effective and safe treatment for tissue damage caused by heart attacks.
A strain of the potentially deadly antibiotic-resistant bacterium known as MRSA has jumped from livestock to humans, according to a new study.
Defects in a protein that functions as a dietary fat sensor may be a cause of obesity and liver
Disease, according to a new study. The findings highlight a promising target for new drugs to treat obes
Researchers have sequenced the genome of a contagious cancer that is threatening the Tasmanian devil, the world's largest carnivorous marsupial, with extinction. Cataloguing the mutations present in t
Researchers have demonstrated a new and more effective method for regrowing blood vessels in the heart and limbs -- a research advancement that could have major implications for how we treat heart dis
Scientists have created the first high-resolution virtual image of cellular structures called S1P1 receptors, which are critical in controlling the onset and progression of multiple sclerosis and othe
About 15 years ago, two professors had the idea to develop a programmable, wirelessly controlled microchip that would deliver drugs after implantation in a patient's body. This week, they reported tha
The cure for cancer comes down to this: video games. Scientists have made highly realistic video game images that simulate the inner workings of human cells. Playing these 'games' helps medical resear
Over their 3.8 billion years of evolution, living organisms have developed countless strategies for monitoring their surroundings. Chemists have adapted some of these strategies to improve the perform
Chemists have created a molecule that's so good at tangling itself inside the double helix of a DNA sequence that it can stay there for up to 16 days before the DNA liberates itself, much longer than
Results from a new clinical trial show that treating heart attack patients with an infusion of their own heart-derived cells helps damaged hearts re-grow healthy muscle. Patients who underwent the ste
A novel discovery reveals a mechanism by which the immune system tries to halt the spread of HIV. Harnessing this mechanism may open up new paths for therapeutic research aimed at slowing the virus&am
Researchers have discovered a startling feature of early brain development that helps to explain how complex neuron wiring patterns are programmed using just a handful of critical genes. The findings
The way people rate their health determines their probability of survival in the following decades. Researchers have demonstrated that for ratings ranging from "excellent," "good,"
Our bodies are full of tiny superheroes -- antibodies that fight foreign invaders, cells that regenerate, and structures that ensure our systems run smoothly. One such structure is myelin, a material
Gene therapy for congenital blindness took another step forward, as researchers further improved vision in three adult patients previously treated in one eye. The patients were better able to see in d
DNA sequences from tumor cells can be used to direct the immune system to attack cancer, according to scientists.
Biologists have found new evidence for why mice, people and other vertebrate animals carry thousands of varieties of genes to make immune-system proteins named MHCs -- even though some of those genes
One of the big mysteries in biology is why cells age. Now scientists report that they have discovered a weakness in a component of brain cells that may explain how the aging process occurs in the brai
One of the big mysteries in biology is why cells age. Now scientists report that they have discovered a weakness in a component of brain cells that may explain how the aging process occurs in the brai
Aerospace engineers have developed a prototype device that could power a pacemaker using a source that is surprisingly close to the heart of the matter: vibrations in the chest cavity that are due mai
Manuka honey could help clear chronic wound infections and even prevent them from developing in the first place, according to a new study. The findings provide further evidence for the clinical use of
The walls of the aorta, the largest blood vessel carrying blood from the heart, exhibits a response to electric fields known to exist in inorganic and synthetic materials. The discovery could have imp
New research from a world-renowned itch expert shows that how good scratching an itch feels is related to the itch’s location.
Damaged human heart muscle cannot be regenerated. Scar tissue grows in place of the damaged muscle cells. Scientists are seeking to restore complete cardiac function with the help of artificial cardia
Researchers have demonstrated how a new virus evolves, shedding light on how easy it can be for
Diseases to gain dangerous mutations.
The driving bass rhythm of rap music can be harnessed to power a new type of miniature medical sensor designed to be implanted in the body.
Scientists have, for the first time, created stem cell-derived, in vitro models of sporadic and hereditary Alzheimer’s
Disease (AD), using induced pluripotent stem cells from patients with t
A tiny, freshwater flatworm found in ponds and rivers around the world that has long intrigued scientists for its remarkable ability to regenerate has now added a new wrinkle to biology.
Bacteria are able to build camouflaged homes for themselves inside healthy cells. A team that revealed how a pair of proteins from the bacteria Legionella pneumophila, which causes Legionnaires diseas
A new study shows a popular treatment for a potentially blinding eye infection is just as effective if given every six months versus annually. This randomized study on trachoma, the leading cause of i
A new drug candidate may be the first capable of halting the devastating mental decline of Alzheimer's
Disease, based on the findings of a new study.
When the activity of a molecule that is normally elevated during viral infections is inhibited in the brain, mice learn and remember better, researchers report.
Satellite images of nighttime lights normally used to spot where people live can help keep tabs on the
Diseases festering among them, too.
Researchers are making progress in developing a system that measures the mechanical properties of living cells, a technology that could be used to diagnose human
Disease and better understand biologic
Oxidative stress is considered to be involved in a multitude of pathogenic processes and is also implicated in the process of aging. For the first time, scientists have been able to directly observe o
A STUDY from the Australian National University has found fluorescent lighting can result in a 12 percent rise in UV-related eye
Disease.
Scientists have discovered a genetic cause of extreme thinness for the first time. The research shows that people with extra copies of certain genes are much more likely to be very skinny. In one in 2
A team of German and Canadian scientists has shown that today's plague pathogen has been around at least 600 years. The Black Death claimed the lives of one-third of Europeans in just five years from
Reconnecting severed blood vessels is mostly done the same way today -- with sutures -- as it was 100 years ago. Now, a team of researchers has developed a sutureless method that appears to be a faste
Most bacterial infections can be treated with antibiotics such as penicillin, discovered decades ago. However, such drugs are useless against viral infections, including influenza, the common cold, an
Researchers have successfully re-engineered the protein-making machinery in bacteria, a technical tour de force that promises to revolutionize the study and treatment of a variety of
Diseases.
Using an unusual human cell line, researchers have performed a genetic screen and identified a protein used by the Ebola virus to gain entry into cells and begin replicating. The discovery may offer a
Through a combination of careful theoretical modeling and precise micro-manufacturing, a team of engineers and scientists has developed a new type of ultra-thin, self-adhesive electronics device that