Lung function decline possible of being halted by Vitamin DVitamin D can prove its efficacy when it comes to slowing down the progressive decline in the ability to breathe occurring in asthmatic patients due to human airway smooth muscle (HASM) proliferation, according to researchers at the University of Pennsylvania.

It was found by the involved group that calcitriol, a form of vitamin D synthesized within the body, has the ability to reduce growth-factor-induced HASM proliferation in cells in asthmatic as well as non-asthmatic people.

The researchers are now planning for a randomized control trial of calcitriol in patients with severe asthma with expectations of trial data in a year’s time as part of the University of Pennsylvania‘s Airway Biology Initiative.