The week was marked by promising health improvements, including a weight loss pill, which is still in the testing phase, which worked on rodents and a robot that travels through the light of blood vessels to “clean” clots after a stroke. Follow the highlights, now, here at the Giro da Saúde!
Imagine a robot of microscopic size that can penetrate blood vessels in search of clots that will dissolve. That was the idea that researchers at Purdue University had when they created a micro-device that cleans the blood accumulated in the brain after a stroke.
The new technique has been shown to be 86% effective in animals, specifically pigs. It consists of a self-cleaning catheter that works through a magnetically controlled microrobot. In tests, scientists were able to successfully remove blood from the brains of six of seven animals using the device, which showed that the innovation is a promising advance in the treatment of stroke.
German researchers have been able to develop a therapy to treat pulmonary arterial hypertension (PAH, or high blood pressure in the lungs) using umbilical cord stem cells. A 3-year-old child underwent experimental treatment with this technique and showed significant improvement.
After five therapies six months apart, the child improved and had no adverse effects. According to the medical committee involved in the study, the girl no longer has limitations in her ability to exercise, and she has also grown and gained weight at a more significant pace than in previous months. There was also an improvement in lung and heart function.
If you remember from biology classes, you must know that most men have a pair of sex chromosomes (X and Y) in their cells, which determines that an individual is born as a man. However, it may happen that some are born, instead of XY, with additional sex chromosomes, resulting in XXY or XYY cells. A condition that was once believed to be rare seems to be more common than previously thought.
An analysis of 200,000 male samples registered with the UK Biobank, Britain’s gene bank, found that the estimate must be doubled – meaning one in 500 men has an extra sex chromosome.
Research also shows that XXY men are significantly less likely to have testosterone than XY men, three times more likely to have delayed puberty and four times more likely to be infertile. The effects of the extra Y chromosome are less well understood, but XYY males tend to be taller in childhood and adulthood, but appear to have normal reproductive functions.
The World Health Organization (WHO) announced on Wednesday that the global monkeypox epidemic “poses a real risk to public health.” Now, a special committee intends to assess whether to declare the disease a “state of emergency for public health of international importance,” such as covid-19.
According to Hans Kluge, WHO Regional Director for Europe, the epicenter of the epidemic, “the longer the virus circulates, the more it expands its reach and strengthens the disease base in non-endemic countries.” He added that “governments, health partners and civil society must act urgently and together to control this epidemic.”
Kluge also said monkeypox is not a reason to cancel events, but an opportunity to use them to boost engagement in fighting disease.
A recent discovery can excite many people to lose a few pounds without the need for a gym: researchers at Baylor School of Medicine and Stanford School of Medicine, in collaboration with other institutions, have discovered a blood molecule that is created during exercise. , synthesized in a pill to help lose weight, suppress hunger.
These are the amino acid Lac-Phe, an essential molecule produced from lactate, a byproduct of physical activity that causes muscle pain after exercise, and phenylalanine, important amino acids in protein formation (hence the names “lac” and “phe”). In the laboratory, tests on mice showed that high doses of Lac-Phe suppressed the consumption of food in obese animals by 50%.
After 10 days, Lac-Phe cumulatively reduced food intake in addition to body weight due to weight loss and increased glucose tolerance. Now it remains to understand how Lac-Phe mediates the effects on the human body.