Laughter may be as effective as eye drops in improving symptoms of dry eye disease, finds a clinical trial from China published by The BMJ.

The researchers suggest that laughter exercise could be an initial treatment for relieving symptoms of dry eye disease.

Dry eye disease (DED) is a chronic condition estimated to affect around 360 million individuals worldwide.

Bothnia dystrophy is a form of hereditary blindness, prevalent in the region Västerbotten in Sweden. A new study at Karolinska Institutet published in Nature Communications shows that gene therapy can improve vision in patients with the disease.

Bothnia dystrophy occurs mainly in the region Västerbotten in Sweden, but the disease has also been identified in other parts of the world.

A new study from King's College London shows that off-label prescriptions of a common antidepressant doesn't help breathlessness in patients with respiratory disease - and may cause side effects.

Researchers warn prescribing medicines for a use which it has not been licensed could make things worse, even though the prescriber was trying to help.

Scientists at Harvard Medical School have designed a versatile, ChatGPT-like AI model capable of performing an array of diagnostic tasks across multiple forms of cancers.

The new AI system, described Sept. 4 in Nature, goes a step beyond many current AI approaches to cancer diagnosis, the researchers said.

Current AI systems are typically trained to perform specific tasks - such as detecting cancer presence or predicting a tumor's genetic profile - and they tend to work only in a handful of cancer types.

Stroke patients who survive a blood clot in the brain's blood vessels are prone to developing new blockages during their recovery periods, even if they receive vessel-clearing interventions. In an effort to avoid further clots, doctors at 57 sites around the U.S. tested a possible solution: the addition of anti-coagulant drugs to medicine that dissolves blood clots.

But results from the clinical trial, led by Opeolu Adeoye, MD, head of the Department of Emergency Medicine at Washington University School of Medicine in St. Louis, indicate two such drugs did not improve outcomes.

Investigators involved in a multicenter study co-led by Cedars-Sinai discovered a pathway by which immune cells prevent the lungs' protective barrier from healing after viral infections like COVID-19. The findings, published in Nature may lead to new therapeutic treatment options.

The COVID-19 pandemic revealed how viral infections can cause long-lasting effects - a condition called long COVID. Also known as post-acute sequelae of SARS-CoV-2, long COVID has left a devastating trail of people who continue to live with long-term debilitation after infection.

Researchers have discovered an antibody able to neutralize all known variants of SARS-CoV-2, the virus that causes COVID-19, as well as distantly related SARS-like coronaviruses that infect other animals.

As part of a new study on hybrid immunity to the virus, the large, multi-institution research team led by The University of Texas at Austin discovered and isolated a broadly neutralizing plasma antibody, called SC27, from a single patient.