Genomic analysis shows widespread mpox transmission in West Africa prior to 2022 global outbreak

Historically, most human mpox infections have resulted from zoonotic transmission—meaning from animals to humans—and these spillovers have rarely led to human-to-human transmission. But during the 2022 global outbreak, mpox began spreading readily between people. A new study now shows the virus was circulating long before then.

Specific personality traits may influence the development of insomnia

A study conducted at the Faculty of Medicine of the University of São Paulo (USP) in Brazil has examined the influence of personality traits on the development and perpetuation of insomnia and found that there is a direct relationship between the two. Two findings caught the researchers’ attention: high levels of openness were associated with low levels of insomnia, while high levels of neuroticism (characterized by emotional instability) were very common in people with the sleep disorder.

Allopurinol designated as the first orphan drug for Marfan syndrome treatment

The European Medicines Agency (EMA) has designated allopurinol as the first orphan drug for the treatment of Marfan syndrome, a rare connective tissue disease which has no cure to date. This disease causes an aortic aneurysm (an abnormal dilation of the aorta) and affects about 7 in 100,000 people in the European Union. Drugs known as orphan drugs are intended to treat such rare conditions that pharmaceutical companies need favorable conditions to market them.

Common analgesic gas aids in opening of blood-brain barrier

Nitrous oxide, a commonly used analgesic gas, temporarily improved the opening of the blood-brain barrier (BBB) to allow gene therapy delivery in mouse models using focused ultrasound (FUS), UT Southwestern Medical Center researchers report in a new study. Their findings, published in Gene Therapy, could eventually lead to new ways to treat a variety of brain diseases and disorders.