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Patients receiving leadless pacemakers experience fewer complications, study finds

Patients receiving leadless pacemakers experience overall fewer short-term and mid-term complications than those receiving traditional transvenous pacemakers, a Cleveland Clinic-led research study found. The study was published today in the journal Heart Rhythm.

26 Jun 2018

Serotonin enhances speed of learning, study finds

An international team from the Champalimaud Centre for the Unknown, in Portugal, and the University College London, in the UK, has uncovered a previously unknown effect of serotonin on learning.

26 Jun 2018

Experts witness action of influenza infection in the lungs of living mice

In the 1966 novel, Fantastic Voyage, written by biochemist and author Isaac Asimov, a crew of people become miniaturized in order to travel through the body of a scientist and save him from a blood clot in his brain.

26 Jun 2018

Unbiased approach reveals how to restore breast cancer drugs’ tumor-killing potential

More than 60 percent of breast cancer cases involve defects in the same biochemical chain of events within cancer cells-- known as the PI3 kinase (PI3K) pathway--but efforts to develop therapies targeting this pathway have met with little success after hundreds of mostly failed clinical trials. And researchers still don't understand why.

26 Jun 2018

Microbiologists and plant scientists pinpoint genetic weakness in cholera pandemic's armor

While cholera rages across many regions of the world, a team of microbiologists and plant scientists has pinpointed a genetic weakness in the pandemic's armor, which could lead to future treatments.

26 Jun 2018

Antidepressant use in people with COPD linked to increased risk of death and hospitalization

Antidepressant use in people with chronic obstructive pulmonary disease is associated with a 20 percent increase in likelihood of death and a 15 percent increase in likelihood of hospitalization due to related symptoms, finds a new study led by researchers at St. Michael's Hospital.

26 Jun 2018

Researchers explore how hypertension impairs cognitive function

The squeeze high blood pressure puts on fragile blood vessels in the brain appears to disrupt a normal, protective process that balances the blood flowing to our brains with the activity of our resting neurons.

26 Jun 2018

Poor sleep quality may be important risk factor for atrial fibrillation

Poor sleep quality appears to be an important risk factor for atrial fibrillation, report scientists in the first study of its kind to demonstrate a relationship between poor sleep quality independent of sleep apnea and a higher risk of atrial fibrillation (AF).

26 Jun 2018

Novel smart probe may improve post-surgical outcomes for cancer patients

A new Tel Aviv University study explores a novel smart probe for image-guided surgery that may dramatically improve post-surgical outcomes for cancer patients.

26 Jun 2018

New molecular imaging method could help effectively tackle brain conditions

A new molecular imaging method can monitor the success of gene therapy in all areas of the brain, potentially allowing physicians to more effectively tackle brain conditions such as Parkinson's disease, Alzheimer's disease and multiple sclerosis.

26 Jun 2018

Scientists discover new kind of small-cell lung cancer

Researchers have discovered a new kind of small-cell lung cancer. The discovery paves the way for developing personalized medicine approaches to target this previously unnoticed form of the disease.

26 Jun 2018

UVA research shows true nature of immune cells blamed in Alzheimer's

Immune cells commonly blamed in Alzheimer's and other neurodegenerative diseases are actually precision cleaning machines protecting the central nervous system, new research from the University of Virginia School of Medicine shows.

26 Jun 2018

Researchers identify novel mutation in amyloid diseases

Researchers have identified a one-of-a kind mutation in the DNA of a patient who died of transthyretin (TTR) amyloidosis, a progressive condition characterized by the buildup of abnormal deposits of a misfolded protein called amyloid in the body's organs and tissues.

26 Jun 2018

Scientists discover and characterize new toxin in cholera bacteria

The bacterium Vibrio cholerae was discovered more than 150 years ago but remains as one of the main causes of bacterial infectious disease globally, especially in low-income nations where it occurs endemic, and outbreaks of cholera disease can lead to major epidemics.

26 Jun 2018

Study suggests new approach for treating alcohol use disorder

Activation of a receptor with no known function in the brain reduces excessive alcohol use and the pain of withdrawal, according to preclinical research in male rats. The study, published in eNeuro, suggests a new approach towards the treatment of alcohol use disorder.

26 Jun 2018

Exposure to air pollution during pregnancy may not be linked to increased risk of ADHD symptoms

Exposure to air pollution during pregnancy may not be associated with an increased risk of attention-deficit and hyperactivity symptoms in children aged 3 to 10 years.

26 Jun 2018

Targeting proteins in semen could prevent sexually transmitted spread of Ebola virus

Protein fragments, called amyloid fibrils, in human semen significantly increase Ebola virus infection and protect the virus against harsh environmental conditions such as heat and dehydration. Researchers from the Perelman School of Medicine at the University of Pennsylvania report these findings in a study published this week in the Proceedings of the National Academy of Sciences.

26 Jun 2018

Study reveals new way to inhibit capillary leakage in sepsis

Leakage from the blood capillaries is a key mechanism leading to septic shock and multiorgan failure, which affect millions of patients annually worldwide. However, there is no effective way to inhibit the vessel leakiness. A new study by scientists at the University of Helsinki and Wihuri Research Institute demonstrates that vascular leakage can be inhibited by targeting vascular integrins.

25 Jun 2018

CRISPR technique reduces repetitive behavior in fragile X syndrome mouse models

Scientists have used CRISPR-Cas9 gene editing to lessen some autism symptoms in mice with a form of fragile X syndrome, the most common known single-gene cause of autism spectrum disorder.

25 Jun 2018