Veículo

• Home
• Veículos
• ScienceDaily (EUA)

Researchers show that up to 15 million hectares of forest risk losing protection owing to a new clause in the law

  A jagged little protein appears to be key to how cancer stem cells differentiate and enable metastasis, according to researchers at Rice University and the Duke University School of Medicine. Rice scientists who have formed several theories on how cancer grows and spreads connected the dots for a more complete picture of tumor mechanics. At the center, they found JAG1, a ligand, or small protein, that interacts with a signaling pathway critical to regulating the fate of cells. Their new [...]

Fundação de Amparo à Pesquisa do Estado de São Paulo Summary: Researchers state that many mammals lineages coexisted with the dinosaurs before the end-Cretaceous mass extinction. Although many species of mammals also disappeared in the extinction event, several lineages survived. Share: FULL STORY Mass extinction typically conjures up a picture of a meteor falling to Earth and decimating the dinosaurs along with everything else. However, this is not exactly what happened. Different [...]

Fundação de Amparo à Pesquisa do Estado de São Paulo Summary: The compound called GA-Hecate also acts on bacteria, fungi and cancer cells and will be tested against Zika and yellow fever viruses. Share: FULL STORY The compound called GA-Hecate also acts on bacteria, fungi and cancer cells and will be tested against Zika and yellow fever viruses (action mechanism proposed for GA-Hecate. Upper half of figure (low concentrations of material): (1) HCV; (2) interaction between GA-Hecate and [...]

Fundação de Amparo à Pesquisa do Estado de São Paulo Summary: Sofosbuvir is already used to treat hepatitis C and has passed all human use approval tests, so it can be fairly easily deployed if the chikungunya epidemic forecast for the next two years materializes. A study performed at the University of São Paulo's Biomedical Science Institute (ICB-USP) in Brazil shows that sofosbuvir, a drug used to treat chronic hepatitis C, is capable of eliminating chikungunya virus and yellow fever [...]

Fundação de Amparo à Pesquisa do Estado de São Paulo Summary: Professors discuss the general criteria to be considered when prescribing the pineal hormone as a health supplement. The guidelines will help health professionals to analyze, understand and interpret the effects of melatonin. Share: FULL STORY Sixty years after melatonin was isolated and with more than 23,000 published studies showing the many functions of this hormone secreted by the pineal gland, guidelines should be [...]

FULL STORY The situation is relatively common, especially in winter. You come down with the flu, which lasts longer than usual. A few days later, you discover you have pneumonia. advertisement The relationship between influenza and pneumonia has long been observed by health workers. Its genetic and cellular mechanisms have now been investigated in depth by scientists in a study involving volunteers and conducted in the United Kingdom. Published in the journal Nature Immunology, the paper [...]

Site ScienceDaily (EUA) publica reportagem sobre primeiro bebê nascido após um transplante de útero de uma doadora falecida. A nova técnica demonstra que os transplantes de útero de doadoras falecidas são viáveis e podem abrir o acesso para todas as mulheres com infertilidade uterina, sem a necessidade de doadoras vivas. Publicado na revista The Lancet, o trabalho liderado pelo Hospital das Clínicas da FMUSP teve apoio da FAPESP

Shell middens are archeological features consisting mainly of the remains of marine animals thrown away near settlements over hundreds or thousands of years. They are the debris of human activity. In Brazil, they are known by the Tupi word sambaqui. The sambaquis were left by people who lived between 8,000 and 1,000 years ago in coastal Atlantic Forest areas, traditionally considered peripheral to South America's first food production centers in the Andes and the Amazon. A new study, however, [...]