Effect of passive smoking on the levels of pregnancy associated plasma protein -a in normal rats

ABSTRACT

To measure the levels of pregnancy associated plasma protein- A [PAPPA-A] in normal rats exposed to cigarette smoke. Experimental interventional study. Army Medical College, Rawalpindi, in collaboration with national institute of health [NIH], Islamabad. Total duration was of 4 weeks. Sixty albino rats of Sprague- Dawley strain weighing 200-250 gm, divided into two groups. Both the groups were kept in identical chambers. One group of 30 rats was further exposed to passive cigarette smoke for 4 weeks. No increase was observed in the levels of serum PAPP-A of both the groups Passive smokers and not exposed to passive smoking i.e. P > 0.05. Smoking does not increase the levels of PAPP-A