Vitamin D deficiency in Asthma ;Reveals in new research

Vitamin D deficiency – In a recent study in Iran scientist said asthma patients who take vitamin D supplements from last six month, in addition to their regular inhalers could breathe a little easier than those who only depends on the inhalers.In this way we can say that vitamin D play a vital role in curing asthma.
About one in 12 individuals, or 25 million people, have asthma in the U.S. alone. In the last decade, the number of people with asthma has grown by about 15 percent.But still there is a doubt in research from a group of scientists. Castro, a professor of Pulmonary and Critical Care Medicine at

Vitamin D deficiency in Asthma

Washington University School of Medicine in St. Louis, Missouri, pointed out that the researchers only measured patient’s lung function, and not whether or not their symptoms improved.
The new study, by Dr. Saba Arshi at the Medical University of Tehran and colleagues, involved 130 children and adults with mild-to-moderate asthma.Every one takes medication from dry powder inhaler(sold in the U.S. as Pulmicort).In addition, half the group was randomly chosen to receive high doses of vitamin D for six months.The first dose, which consist of 100,000 units of vitamin D , was given by injection.Then patients were instructed to take 50,000 units orally once a week.After eight weeks, when the researchers measured the amount of air asthma patients could exhale in one second, both groups had improved in the same extent. But after 28 weeks, that amount had improved by about 20 percent in the patients who received vitamin D supplements, versus about 7 percent among those who only used the inhaler.In this way this is proved that vitamin supplement play a vital role in curing the asthma patients in a very good extent. He would not recommend that patients with asthma take vitamin D supplements based on this study and one of his own studies, though his research found some people with deficient levels improved after supplementation.
Still there are numbers of questions are raising in this study weather vitamin D is helpful
or not in curing asthma patients