Medical researchers are advising caution when treating blood pressure in some older people -- after results from a study contrasted with recent advice from the US, based on the SPRINT trial, to attempt to aggressively lower blood pressure in all adults to targets of 120mmHg.
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Crystallography provides battle-plan blueprints for attacking disease-causing bacteria
X-rays helped scientists to look under the bonnet of two common bacteria that opportunistically infect people, so as to better understand the mechanics involved. The blueprints may be used to design new drugs, which are badly needed.
The mystery of the pulsating blue stars
In the middle of the Chilean Atacama desert, a team of astronomers are monitoring millions of celestial bodies. In 2013, the team was surprised when they discovered, in the course of their survey, stars that pulsated much faster than expected. In the following years, the team studied these stars in more detail and concluded that they had stumbled upon a new class of variable star.
Spying on malaria parasites at -196 Celsius
By combining two advanced microscope techniques scientists have managed to obtain new information about the ravaging mode of operation applied by malaria parasites when attacking their victims. This information can be utilized when designing new medication to more effectively fight malaria -- a disease claiming over 400,000 lives each year, a majority of whom are infants.
How cicadas manage to 'wing it'
Unlike locusts and many other flying insects, cicadas don't soar through the air with the greatest of ease. Now in a study shows that certain chemical components in the insect's wings could explain why.
First circuit map of brain's learning and memory center
A significant development in understanding the brain: Scientists have, for the first time ever described the mushroom body connectome within the brain of fly larvae (Drosophila melanogaster) -- the circuit diagram of nerve cells.
Improving detection of a 'date rape' drug
Because gamma hydroxybutyric acid (GHB), commonly known as a 'date rape drug' is rapidly absorbed and metabolized by the body, it's difficult for law enforcement to tell if someone has been given GHB. Now, scientists report that they have identified a potential biomarker that might lead to tests to detect the compound that could be performed much later than current ones.
Reducing risk of gut bacterial infections with next-generation probiotic?
In laboratory-grown bacterial communities, the co-administration of probiotic Lactobacillus reuteri and glycerol selectively killed C. difficile.
Increased endometrial cancer rates found in women with high levels of cadmium
Through a five-year observational study, researchers found that women with increased levels of cadmium -- a metal commonly found in foods such as kidneys, liver and shellfish as well as tobacco -- also had an increased risk of endometrial cancer. It's an observation the researchers hope could lead to new treatments or interventions to prevent the fourth most common cancer in women.
Chaco Canyon petroglyph may represent ancient total eclipse
As the hullabaloo surrounding the Aug. 21 total eclipse of the sun swells by the day, an expert says a petroglyph in New Mexico's Chaco Canyon may represent a total eclipse that occurred there a thousand years ago.