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A research team from the Medical University of Vienna and the Medical University of Graz has discovered a previously unknown genetic cause of hereditary optic atrophy, a degenerative disease of the optic nerve associated with gradual loss of vision. The results, currently published in the journal Genetics in Medicine, open up new possibilities for the genetic diagnosis of this disease and provide important approaches for future research into the underlying disease mechanisms. The starting [...]

Key Points A review study conducted by Brazilian researchers found growing evidence that microplastics can reach and build up in human bone tissue, potentially disrupting bone metabolism. Lab and animal studies indicated that microplastics trigger oxidative stress, inflammation, and premature aging in bone cells, which can impair bone formation and growth. While human impacts are still being studied, scientists warn that understanding how microplastics contribute to bone-related [...]

If you're a runner or a cyclist regularly tackling big distances, you might sometimes question why you spend half your weekends logging miles and putting your body through some hefty exertion. Long runs, back-to-back rides and early alarm clocks don't always feel easy, and unless you are actively training for a race, it can be difficult to remember why you signed up for this kind of hobby in the first place. But the benefits of endurance training run deeper than a new personal best or [...]

The world's largest factory that produces mosquitoes that can prevent dengue, Zika and chikungunya viruses from reproducing has opened in Curitiba, Brazil, aiming to boost protection in 40 municipalities with high infection rates. The mosquitos, which are infused with the Wolbachia bacterium, prevents viruses carried by the Aedes aegypti mosquito from reproducing, sharply reducing the insect's ability to transmit diseases. The factory, built by the Oswaldo Cruz Foundation in [...]

Green tea has long been known as a healthy drink with antioxidant and healing properties. Many people believe it can help with weight loss, and now science is offering more support for that idea. A new study led by Rosemari Otton from Cruzeiro do Sul University in São Paulo, Brazil, has shown that green tea can reduce body weight and improve blood sugar control in obese mice. These results suggest that green tea could one day help people manage obesity and related conditions like type 2 [...]

Even though electronic cigarettes do not contain any illicit substances, the liquid can cause serious health problems. Often, the nicotine concentration in these products is several times higher than in conventional cigarettes, promoting rapid addiction. Furthermore, in countries like Brazil, which have banned electronic cigarettes, it Is observed that the products offered to users do not undergo any quality control. A resolution by the Brazilian Health Regulatory Agency (ANVISA) prohibits the [...]

Compounds in green tea can reprogram muscle metabolism to boost insulin sensitivity and glucose tolerance, according to new findings that further our understanding of why this ancient drink has long been linked to protection against obesity. Green tea has long been linked with improved blood sugar control and reduced risk of metabolic diseases, but much of that evidence stems from animal studies undertaken in cool laboratory environments. Those conditions can artificially trigger calorie [...]

Exercise is well known for strengthening muscles, lungs, and the heart, but new research shows it also “trains” the immune system. An international team of scientists has found that older adults who have been doing endurance sports for decades have immune cells that are stronger, more adaptable, and less likely to trigger harmful inflammation. The study, published in Scientific Reports, looked closely at natural killer (NK) cells. These white blood cells are part of the [...]

It can successfully detect levels of the specific proteins that serve as indicators of Alzheimer's in the bloodstream Researchers have made a significant breakthrough in the development of a blood test for Alzheimer’s, creating a new sensor design which is ultra-sensitive, outperforms competing technologies and can be built into a handheld device. The results, detailed in the leading journal Optica, demonstrate that the team's light-based technology can successfully detect [...]