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Medicine.net (China)
Em 2026: 0 notícias
Desde 1995: 23 notícias
Physical exercise can 'train' the immune system
Publicado em 23 de outubro de 2025
In addition to strengthening the muscles, lungs, and heart, regular physical exercise also strengthens the immune system. This finding comes from a study of older adults with a history of endurance training, which involves prolonged physical activity such as long-distance running, cycling, swimming, rowing, and walking.
An international team of researchers analyzed the defense cells of these individuals and found that "natural killer" cells, which patrol the body against viruses and diseased [...]
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AI-based tool can 'measure' cancer aggressiveness and paves the way for new therapies
Publicado em 28 julho 2025As cancer cases have increased worldwide, the disease has become more complex, presenting challenges to scientific advances in diagnosis and treatment. In this context, artificial intelligence (AI) has emerged as a valuable tool for predicting and detecting cases. A tool developed by Brazilian and Polish researchers may contribute to this process. Their research is published in the journal Cell Genomics. The machine-learning model can predict the aggressiveness of certain tumors by [...]ver notícia -
Therapeutic vaccine developed for diseases caused by HPV
Publicado em 16 julho 2025Diseases caused by human papillomavirus (HPV), such as cervical cancer, may have a new treatment option thanks to a technology developed by researchers at Imunotera Soluções Terapêuticas, a São Paulo startup incubated at Eretz.bio, the biotechnology startup hub at Albert Einstein Jewish Brazilian Hospital. The scientists have developed a therapeutic vaccine based on a recombinant protein called Terah-7, which is capable of stimulating the immune system to fight [...]ver notícia -
Machine learning can predict which babies will be born with low birth weights
Publicado em 24 junho 2025Babies born with low birth weight (less than 2.5 kg) are 20 times more likely to die. They are also more likely to develop neurological and cardiovascular diseases, diabetes, and growth problems later in life. A study conducted by researchers at the University of São Paulo (USP) shows that machine learning models can predict these cases, enabling early and more effective interventions and preventing complications. The research, which represents the first application of advanced [...]ver notícia -
Insulin resistance in brain may be one of the factors linking Alzheimer's disease and epilepsy
Publicado em 13 junho 2025Experimental design diagram. a Timeline of experiments illustrating the key phases of the study. b Detailed protocols employed throughout the experiment. Rats were divided into two groups: icv-STZ and vehicle. Both groups underwent stereotaxic surgery for bilateral intracerebroventricular (icv) microinjections of either streptozotocin (STZ) or vehicle. Fourteen days post-injection, spatial memory was assessed using the Barnes maze test (BM). After a two-day habituation period, an audiogenic [...]ver notícia -
Study reveals analgesic and anti-inflammatory properties in Annona squamosa leaves
Publicado em 06 janeiro 2025In Brazil, researchers have identified substances with analgesic, anti-inflammatory, anti-hyperalgesic (against persistent pain) and anti-arthritic activity in the leaves of Annona squamosa, a tree popularly known in the country as fruta-do-conde or pinha. The findings are published in the journal Pharmaceuticals. The work involved scientists from the Federal University of Grande Dourados (UFGD), the Federal University of Mato Grosso do Sul (UFMS), the State University of Campinas (UNICAMP) [...]ver notícia -
High-intensity interval training more beneficial for older women than moderate exercise or resistance training alone
Publicado em 23 setembro 2024A study involving 92 socioeconomically vulnerable elderly women has compared the efficacy of different low-cost community-based exercise programs to improve and/or maintain cardiovascular and functional parameters, such as waist circumference, blood pressure, and above all, arterial stiffness, a risk factor for atherosclerosis. An article describing the results is published in the European Journal of Preventive Cardiology. The main conclusion is that high-intensity interval training (HIIT) [...]ver notícia -
Team reveals why new tuberculosis vaccine induces a stronger, longer response than the conventional vaccine
Publicado em 05 julho 2024Researchers 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 [...]ver notícia -
Study helps explain why stress in adolescence can lead to predisposition to mental illness in adulthood
Publicado em 23 junho 2024Excessive 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 [...]ver notícia -
Novel formulation of an injectable drug to treat joint inflammation acts for ten days
Publicado em 11 junho 2024Thanks 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 [...]ver notícia