Which hypothesis has been proven in this article?
A. Insulin is for diabetics only
B. Insulin can work as an inflammatory
C. Insulin may increase the risk of heart attacks
D. Insulin may reduce the risk of atherosclerosis
E. Insulin may function as an antidepressant
As the article states on lines 15-19, “The investigators found that insulin reduced concentrations of the pro-inflammatory compound nuclear factor kappa-B (NF kappa-B) and increased concentrations of the compound that inhibits NF kappa-B. In addition, insulin reduced reactive oxygen species generation by mononuclear cells and produced a reduction in the levels of several other pro-inflammatory mediators.”