The drug, is found in Seretide and Servant inhalers, acts on beta-2 receptors in the lining of the airways, but previous research has shown that as many as one-in-seven children carry a gene variant - arginine-16 - that undermines its effectiveness.
The pancreatic beta cells have estrogen RECEPTORS. Estrogenic receptors trigger insulin release which is why they tell women on oral contraceptives to watch out for strokes and heart problems.
By 1992 Grotendorst, who had done work at the University of South Florida and is now at the University of Miami, concluded that it was CTGF, not TGF-beta, that triggers collagen production by binding to specific cell receptors.