When emotions are processed in a negatively biased manner in the brain, an individual is at risk to develop depression. Psilocybin, the bioactive component of the Mexican magic mushroom, seems to intervene positively in the emotion-processing mechanism. Even a small amount of the natural substance attenuates the processing of negative emotions and brightens mood as shown by UZH researchers using imaging methods.
Cells have to protect themselves against damage in their genetic material for one thing, but also against attack from the outside, by viruses for example. They do this by using different mechanisms: special proteins search out and detect defects in the cell's own DNA, while the immune system takes action against intruders. Scientists have now shown that the two protective mechanisms are linked by a shared protein.
An app called DermoScreen, which would allow users to take a photo of a suspicious mole or lesion with your phone, run it through an embedded software program and find out within a few seconds if it is likely to be cancerous, is currently being evaluated for further testing.
In a world-first, researchers have discovered one of the main reasons behind why cancer spreads throughout the body: the help of "bad" cholesterol. The research found that LDL regulates the machinery that controls cell migration.
An antioxidant that targets specific cell structures—mitochondria—may be able to reverse some of the negative effects of aging on arteries, reducing the risk of heart disease, according to a new study by the University of Colorado Boulder.
Skilled motor movements of the sort tennis players employ while serving a tennis ball or pianists use in playing a concerto, require precise interactions between the motor cortex and the rest of the brain. Neuroscientists had long assumed that the motor cortex functioned something like a piano keyboard. But a new study finds that the motor cortex itself plays an active role in learning new motor movements.
Why do we yawn? We tend to yawn before sleep and after waking, when we are bored or under stimulated. We yawn in the anticipation of important events and when we are under stress. What do all of these have in common? Researchers from the University of Vienna, Austria, and the Nova Southeastern University and SUNY College at Oneonta, USA highlight a link with thermoregulation, and in particular, brain cooling.
A study of concussion patients using diffusion tensor imaging (DTI) found that males took longer to recover after concussion than females did. Results of the study also show that DTI can be used as a bias-free way to predict concussion outcome.
A team of researchers is creating molecules designed to shut down the Middle East respiratory syndrome coronavirus, or MERS-CoV, that recently arrived in the United States.
Eczema caused by defects in the skin could reduce the risk of developing skin cancer, according to new research. The immune response triggered by eczema could help prevent tumor formation by shedding potentially cancerous cells from the skin.
A futuristic anti-aging approach, variously described and utilized by three different Harvard and Stanford groups this week, may hit the clinic by year’s end. The research all began with “heterochronic parabiosis.” That is, old mice were hooked up to young mice via their circulatory systems— and experienced tissue rejuvenation.
An interdisciplinary team of scientists from KU Leuven in Belgium has developed a new technique to examine how proteins interact with each other at the level of a single HIV viral particle. The technique allows scientists to study the life-threatening virus in detail and makes screening potential anti-HIV drugs quicker and more efficient.
Researchers have demonstrated how genetic variations among healthy, young individuals can influence immune cell function. Many of those variants are also genetic risk factors for common diseases later in life, offering new insight into disease pathology.
Blindness or vision loss can be a primary or secondary side effect of psychiatric treatment. Typical antipsychotics and selective serotonin reuptake inhibitors (SSRIs) prescribed for patients with depression or anxiety disorders can lead to mydriasis, a dilation of the pupil, which causes the vision to become impaired; tricyclic antidepressants can cause blurred vision; some seizure drugs have been linked to near-sightedness and glaucoma.
According to the Parkinson's Disease Foundation, as many as a million people in the U.S. suffer from Parkinson’s disease, a central nervous system (CNS) disorder resulting from loss of cells in various parts of the brain. Others have difficult-to-treat HIV in the central nervous system. What do these diseases have in common?
Health officials confirmed the first case of an American infected with a mysterious virus that has sickened hundreds in the Middle East. Federal and state health officials announced on Monday that they are scheduled to discuss their response to the illness.
The World Health Organization says the spread of polio is an international public health emergency that threatens to infect other countries with the crippling disease.
Scientists at the Fred Hutchinson Cancer Research Center demonstrate that mice lacking one copy of a gene called CTCF have abnormal DNA methylation and are markedly predisposed to cancer. CTCF is a very well-studied DNA binding protein that exerts a major influence on the architecture of the human genome, but had not been previously linked to cancer.
More than a mile beneath the ocean's surface, as dark clouds of mineral-rich water billow from seafloor hot springs called hydrothermal vents, unseen armies of viruses and bacteria wage war. Like pirates boarding a treasure-laden ship, the viruses infect bacterial cells to get the loot: tiny globules of elemental sulfur stored inside the bacterial cells.
Researchers have established a technique that allows them to track neural communication in the brain over time, using magnetic resonance imaging (MRI) along with a specialized molecular sensor.
Here’s another reason to drop that doughnut and hit the treadmill: A new study suggests aerobic fitness affects long-term memory. The study is one of the first to investigate young, supposedly healthy adults.
A recently arrived mosquito-borne virus that causes an abrupt onset of high fever and intense joint pain is rapidly gaining a foothold in many spots of the Caribbean, health experts said. There are currently more than 4,000 confirmed cases of the fast-spreading chikungunya virus in the Caribbean, most of them in the French Caribbean islands of Martinique, Guadeloupe and St. Martin.
More than three decades after the eradication of smallpox, U.S. officials say it's still not time to destroy the last known stockpiles of the virus behind one of history's deadliest diseases. The world's health ministers meet later this month to debate, again, the fate of vials held under tight security in two labs — one in the U.S. and one in Russia.
Scientists identified a key genetic switch linked to the development, progression and outcome of cancer, a finding that may lead to new targets for cancer therapies. The switch, a string of nucleotides dubbed a long non-coding RNA (lncRNA), does not code for proteins like regular RNA. Instead, this particular lncRNA acts as an on/off switch for a key gene whose excessive activity is tied to inflammation and cancer, COX-2.
Vitamin D deficiency was an indicator of aggressive prostate cancer and spread of the disease in European-American and African-American men who underwent their first prostate biopsy because of abnormal prostate-specific antigen and/or digital rectal examination test results, according to a study.