happyness blog

Scientists have found a brand new method to convert human pores and skin cells instantly into motor neurons (above). The method, developed at Washington College College of Drugs in St. Louis, may assist researchers higher perceive ailments of motor neurons, resembling amyotrophic lateral sclerosis. Human motor neurons are troublesome to review since they can not be taken from dwelling sufferers. The motor neurons pictured have been transformed from pores and skin cells sampled from a wholesome 42-year-old lady. Credit score: Daniel Abernathy Scientists working to develop new remedies for neurodegenerative ailment s have been stymied by the shortcoming to develop human motor neurons within the lab. Motor neurons drive muscle contractions, and their injury underlies devastating ailments resembling amyotrophic lateral sclerosis and spinal muscular atrophy, each of which finally result in paralysis and early demise. In new analysis, scientists at Washington College Coll...

Every cell within the common human s physique accommodate 23 pairs of chromosomes, with 4 telomeres on every pair. Telomeres cowl the top of the chromosome, defending it from deterioration or fusion with adjoining chromosomes, very like the plastic tip on the finish of a shoelace protects it from unraveling. Whereas there's a size vary for classifying a wholesome telomere, researchers discovered, for the primary time ever, that folks with coronary heart failure have shorter telomeres inside the cells that make up the guts muscle (often called cardiomyocytes). A group of researchers from Penn Medication, in collaboration with the College of Connecticut, printed their findings right now within the  Journal of the American Coronary heart Affiliation , constructing on a strategies paper which was printed lately in  Nature Protocols . The group is the primary to have developed a technique for measuring the size of telomeres utilizing human coronary heart tissues. "As soon as...