Karolinska Institutet

Researchers have deployed drones carrying defibrillators to the sites of real-world cardiac arrests for the first time. On average, the unmanned aircraft arrived well ahead of ambulance crews, with the medical devices safely in tow.

A large study tracking some four million patients has linked adult ADHD diagnosis with a higher risk of a range of other diseases, including nervous system, musculoskeletal, respiratory, gut and metabolic conditions. Only arthritis wasn't correlated.

Researchers at Karolinska Institute in Sweden have made a breakthrough in the arms race that is cancer immunotherapy. The team has blocked a protein that silences an important tumor-suppressing protein, allowing the latter to get back to work.

Microneedle patches already show a great deal of promise as a painless alternative to hypodermic needles. A new one, however, could find use as a more effective means of treating serious bacterial infections of the skin.

New research has found one in five people have a genetic mutation that confers greater resilience to cold temperatures. The study shows people with a deficiency generating a skeletal muscle protein shiver less and hold higher core temperatures in the cold.

Cancer cells are very energy-hungry, which could be a potential weakness. Now, researchers have developed an experimental drug that blocks mitochondrial metabolism, starving cancer cells of energy while leaving healthy cells relatively unscathed.

Exactly how exercise could be directly helping the body fight cancer has been unclear. Now, a study led by researchers from Sweden’s Karolinska Institutet has discovered the way exercise can bolster the cancer-killing ability of certain immune cells.

While much research has investigated short-term physiological responses to exercise a new study has set out to examine how long-term physical training, consistently performed for over a decade, can influence gene activity to prevent metabolic disease.

Scientists have discovered a new mechanism to help illustrate the rapid antidepressant qualities of ketamine. Imaging patients with depression revealed ketamine’s effects are a result of its interaction with a particular kind of serotonin receptor.

A genetic variant inherited from our ancient Neanderthal relatives and thought to confer heightened fertility has been found in modern humans. The new research suggests almost one in three European women carry some degree of the gene variant.

Four years after it was announced, the results of a controversial clinical trial have been published, finding a testosterone-reducing drug, originally developed for prostate cancer, lowered sexual interest in children for men with pedophilic disorder.

Scientists have thrown further weight behind the theory that Parkinson's could originate in the gut, with an investigation of the digestive system revealing possible tell-tale signs at the earliest stages of the disease.