Researchers from Autonoma University of Madrid have investigated how CPAP treatment affects glycemic control in patients with type 2 diabetes who also have sleep apnea. To do this, they examined 50 patients with both conditions who had an HbA1c levels over 6.5%. The participants either used CPAP or had no treatment for their sleep apnea, but took their diabetes medications as prescribed.
After six months it was found that the group receiving CPAP treatment had significant decreases in both insulin resistance and HbA1c levels. They also had higher levels of adiponectin, a glucose-regulating hormone, and lower levels of the inflammatory molecules IL-6 and IL-1beta.
These findings were published in The American Journal of Respiratory and Critical Care Medicine on March 1, 2016.