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Archive for September 6th, 2017

Mouth clicks used in human echolocation captured in unprecedented detail

Like some bats and marine mammals, people can develop expert echolocation skills, in which they produce a clicking sound with their mouths and listen to the reflected sound waves to “see” their surroundings. A new study published in PLOS Computational Biology provides the first in-depth analysis of the mouth clicks used in human echolocation. The research, performed [...]

BCG jab may protect against TB for nearly twice as long as previously thought

Previously thought to be effective for 10-15 years, a new case-control study found that if given in early teenage years (12-13), the Bacillus Calmette-Guérin (BCG) vaccine protected over 50% of UK children against TB for at least 20 years, then waned. The research was led by the London School of Hygiene & Tropical Medicine and [...]

Scents and social preference: Neuroscientists ID the roots of attraction

A baby lamb is separated from its family. Somehow, in vast herds of sheep that look virtually identical, the lost youngling locates its kin. Salmon swim out to the vast expanses of the sea and migrate back home to their precise spawning grounds with bewildering accuracy. Scientists have long known about such animal kinship attachments, [...]

Compound regulates genetic risk factor in Parkinson’s disease

Suchi Mittal and colleagues have identified beta-2 adrenergic receptor (?2AR) agonists as compounds that can reduce levels of the alpha-synuclein gene, which has been implicated in increased risk for Parkinson’s disease. These compounds — some of which appear in approved drugs for asthma and similar conditions — could offer a new pathway to develop Parkinson’s [...]

E-cigarettes can help smokers quit, but there’s a catch

Frequent e-cigarette use does help smokers quit — a finding that Georgetown Lombardi Comprehensive Cancer Center researchers say supports the use of e-cigarettes as a cessation aid for those trying to quit cigarette smoking. But, they note, an examination of a recent national survey uncovers important clues about who’s successful at quitting and why. The findings, published [...]