antibody

Image of llama from www.healthline.com Research has suggested that llamas may pack a powerful punch against HIV. This is because they not only have conventional heavy and light chain antibodies like those found in humans, they also have heavy chain-only antibodies as shown below. Depiction of conventional antibody with heavy and light chains (left) and the heavy chain only antibody found in llamas (right). Figure from www.abcore-inc.com These so-called "llama antibodies" are smaller than the conventional antibodies found in humans. This helps the antibodies bind more effectively to…
Of all the cranks, quacks, antivaccinationists, and pseudoscientists that I've encountered (and applied a bit of not-so-Respectful Insolence to) over the years, there are a few who belong in the top tier—or, if you prefer, the bottom tier. They stick out in my memory for a variety of reasons, either through their sheer crankitude on a variety of subjects (such as Mike Adams), sheer persistence on one subject (such as Jake Crosby or any of the denizens of the antivaccine crank blogs Age of Autism or The Thinking Moms' Revolution), or fame for promoting quackery (Joe Mercola). One of these…
  Image of a cynomolgus macaque. Image credit: iStockphoto/Anna Yu   Researchers at Amgen in British Columbia and California have developed an antibody called mimAb1 that mimics the properties of fibroblast growth factor 21 (FGF21). Having a role in regulating fat and glucose metabolism as well as body weight made this particular growth factor a target for the treatment of obesity and diabetes. When administered to obese cynomolgus monkeys, the new antibody promoted significant weight loss as well as decreases in circulating insulin and glucose concentrations during a tolerance test,…