Century Dictionary and Cyclopedia
- n. A colorless compound, C6H10O5.⅙H2O, contained in the rhizomes of the water-lily, Iris Pseudacorus, and in other plants. It closely resembles starch in appearance and consists of microscopic spheres which melt at 218° C. and are not doubly refractive.
“The newly identified hormone, called irisin, increases in the body during exercise, boosting energy expenditure and controlling blood glucose levels.”
“Nature, purports to establish the existence of a new hormone, irisin, which is integral -- in exercising mice, at least -- to the process of converting garden-variety white fat into its hottie counterpart, brown fat.”
“And people who had gotten 10 weeks of endurance exercise training had double the amount of irisin in their blood than those who had not.”
“An increase in irisin helps turn white fat into the diabetes at bay.”
“To find out, they injected a batch of obese, pre-diabetic mice that had been fed a high-fat diet with just about as much of an irisin boost as they would get from a workout.”
“And the messages irisin carries are not trivial-they seem to effect positive changes in the body.”
“It is likely that irisin is responsible for at least some of the beneficial effects of exercise on the browning of adipose tissues and increase in energy expenditure," Speigelman and his colleagues noted in their paper.”
“Even after 12 hours of rest, mice that had been on a three-week jogging regimen had 65 percent more irisin in their blood than unexercised mice.”
“They dubbed the new hormone irisin, as a nod to the Greek messenger goddess Iris for its ability to send information to surrounding body tissue.”
“In other words, if irisin does in people just what it does in mice, and if we can develop irisin to give people, it might cause them to burn more calories without needing to exercise.”
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