Um ousado trabalho de geografia que mapeou o nível de envenenamento dos alimentos produzidos no Brasil foi lançado em maio, em Berlim, na Alemanha, país que contraditoriamente sedia as maiores empresas agroquímicas do mundo.
About four years ago, pathologist Matthew Anderson was examining slices of postmortem brain tissue from an individual with autism under a microscope when he noticed something extremely odd: T cells swarming around a narrow space between blood vessels and neural tissue. The cells were somehow getting through the blood-brain barrier, a wall of cells that separates circulating blood from extracellular fluid, neurons, and other cell types in the central nervous system, explains Anderson, who works at Beth Israel Deaconess Medical Center in Boston. “I just have seen so many brains that I know that this is not normal.”
He soon identified more T-cell swarms, called lymphocytic cuffs, in a few other postmortem brains of people who had been diagnosed with autism. Not long after that, he started to detect another oddity in the brain tissue—tiny bubbles, or blebs. “I’d never seen them in any other brain tissue that I’ve looked at for many, many different diseases,” he says. Anderson began to wonder whether the neurological features he was observing were specific to autism.
British scientists have accidentally discovered a new type of cell that kills most cancers. The new discovery could be a huge breakthrough in the search for a universal cure for cancer, writes British newspaper The Telegraph.
A new type of immune cell which kills most cancers has been discovered by accident by British scientists, in a finding which could herald a major breakthrough in treatment.
Researchers at Cardiff University were analysing blood from a bank in Wales, looking for immune cells that could fight bacteria, when they found an entirely new type of T-cell.
That new immune cell carries a never-before-seen receptor which acts like a grappling hook, latching on to most human cancers, while ignoring healthy cells.
In laboratory studies, immune cells equipped with the new receptor were shown to kill lung, skin, blood, colon, breast, bone, prostate, ovarian, kidney and cervical cancer.
A physicist at the University of California, Riverside, has performed calculations showing hollow spherical bubbles filled with a gas of positronium atoms are stable in liquid helium.
Toshiba Corp. has developed technology to detect 13 types of cancer from a single drop of blood with 99 percent accuracy, the company announced Monday.
Toshiba developed the diagnosis method together with the National Cancer Center Research Institute and Tokyo Medical University, and hopes to commercialize it in “several years” after starting a trial next year.
The method could be used to treat cancer in its early stage, it said. Leer Más
Credit: University of Copenhagen
Stem cells all share the potential of developing into any specific cell in the body. Many researchers are therefore trying to answer the fundamental questions of what determines the cells’ developmental fate as well as when and why the cells lose the potential of developing into any cell.
Current oncology practice is “failing those diagnosed with cancer” with regard to prescribing exercise, says a call-to-action report from a global coalition of 40 leaders from 17 organizations, spearheaded by the American College of Sports Medicine (ACSM).