Tuberculosis bacteria trigger cough, facilitating spread

The bacteria that cause the deadly lung disease tuberculosis appear to facilitate their own spread by producing a molecule that triggers cough, a new study led by UTSW researchers shows. The findings, published online March 5, 2020, in Cell, could lead to new ways to prevent the spread of tuberculosis, which is responsible for the death of more than 1.5 million people per year worldwide.
Read More

Ultra-wide field retinal imaging techniques cannot be used interchangeably

Diabetic retinopathy can be diagnosed and graded with the use of a newer scanning technology called ultra-wide field (UWF) imaging, a system that generates high-quality pictures showing most of the retina. Research from the Joslin Diabetes Center’s Beetham Eye Institute has now shown that one technique, UFW fluorescein angiography, detects over three times more microaneurysms than UWF color imaging, suggesting that the two modalities should not be used interchangeably when evaluating and treating this vision-threatening condition. The research is published this month in the British Journal of Ophthalmology.
Read More

More steps-per-day linked to significant reductions in diabetes and high blood pressure

Middle-aged people who walked the most steps-per-day over an average of 9 years had a 43% lower risk of diabetes and a 31% lower risk of high blood pressure, compared to those with the fewest steps, according to preliminary research presented at the American Heart Association’s Epidemiology and Prevention | Lifestyle and Cardiometabolic Health Scientific Sessions 2020.
Read More