Enzymes evolved in the lab hold commercial and scientific promise
Whether big, small, slimy, or tall, most animal bodies are symmetric.
Except for sea anemones, starfish, sponges, and the like, animals have bilateral, or right-left, symmetry. Us included.
The bilateral body plan became the norm over eons of evolution. But what about molecules? Have any evolved common structures like a body plan? (more…)
Misguided killer T cells may be the missing link in sustained tissue damage in the brains and spines of people with multiple sclerosis, findings from the University of Washington reveal. Cytoxic T cells, also known as CD8+ T cells, are white blood cells that normally are in the body’s arsenal to fight disease.
Multiple sclerosis is characterized by inflamed lesions that damage the insulation surrounding nerve fibers and destroy the axons, electrical impulse conductors that look like long, branching projections. Affected nerves fail to transmit signals effectively. (more…)
