Veículo

• Home
• Veículos
• Medicine.net (China)

Researchers from the Butantan Institute and collaborators are developing a more potent version of the BCG vaccine that protects against tuberculosis. While the conventional immunizer reduced infection by 90% in experiments with mice, the so-called recombinant BCG increased the protection rate to 99%. In addition, the new formulation protected the animals for a significantly longer period of time. "BCG is the first vaccine we receive at birth, and it's indeed effective in protecting [...]

Excessive stress during adolescence can cause alterations in the profile of genes expressed in the brain, especially those associated with bioenergy functions. These alterations may affect cell respiration, resulting in behavioral problems and psychiatric disorders in adulthood, according to a study in rats conducted by researchers at the University of São Paulo's Ribeirão Preto Medical School (FMRP-USP) in Brazil. The results are published in the journal Translational [...]

Thanks to a new injectable formula, Brazilian researchers have succeeded in enhancing the efficacy and prolonging the duration of action of a drug commonly used to treat joint inflammation. The innovation involves lipid nanoparticles containing a high concentration of naproxen, which is gradually released into the affected joint to sustain the desired effect for up to 10 days without the need for repeated administration. In an article published in the journal Scientific Reports, researchers [...]

Researchers at the University of São Paulo (USP) in Brazil have shown for the first time that gestational obesity associated with infection by Zika virus influences the placenta's antiviral response, weakening the organ's capacity to attack the pathogen and protect the fetus. The study results are reported in an article published in the journal Viruses. According to the authors, the findings underscore the importance of adequate antenatal care. "We normally associate [...]

Thanks to the popularization of smartphones and tablets, and the multiplication of video channels, computer games and educational apps, children and adolescents are spending more and more time looking at screens, usually with bad posture, which can cause back pain, among other problems. A study by Brazilian researchers reported in an article published in Healthcare identified several risk factors for spinal health, such as looking at screens for more than three hours a day, proximity of the [...]

The relationship between living in a polluted city like São Paulo (Brazil) and lung disease or cancer is well known. But the problems go further. Unprecedented research shows that long-term exposure to air pollution is directly linked to increased heart risks in residents of the capital of the state of the same name. People with high blood pressure are at even greater risk. The study, published in the journal Environmental Research, was conducted by researchers from the University of [...]

An article published in npj Aging reveals that natural production of auto-antibodies increases with age, and that infection by SARS-CoV-2 can exacerbate production of auto-antibodies relating to auto-immune diseases, helping to explain why aging increases the chances of developing severe COVID-19. The study also discovered some of the factors that associate the severe form of the disease with blood clotting disorders such as thrombosis. "These findings open the door to a better [...]

by Netherlands Cancer Institute Many new drugs inhibit the processes that cancer cells need to divide rapidly. So as to inhibit the cancer as a whole. But cancer cells have all sorts of workarounds to get around that effect. As a result, the tumor becomes unresponsive to treatment. That's why researcher Matheus dos Santos Dias is taking a completely different approach. He had to convince some colleagues before he could start working on this quite surprising idea. After all, you're [...]

People who find themselves rummaging around in the refrigerator for a snack not long after they’ve eaten a filling meal might have overactive food-seeking neurons, not an overactive appetite. UCLA psychologists have discovered a circuit in the brain of mice that makes them crave food and seek it out, even when they are not hungry. When stimulated, this cluster of cells propels mice to forage vigorously and to prefer fatty and pleasurable foods like chocolate over healthier foods like [...]