Inhibition of Adenylate Cyclase: The muscarinic receptor, through interaction with an inhibitory GTP-binding protein, acts to inhibit adenylyl cyclase. Reduced cAMP production leads to reduced activation of cAMP-dependent protein kinase, reduced heart rate, and contraction strength.
In someone suffering with scleroderma, collagen (a protein manufactured by the connective tissues of the body) is produced in excess. This over-production of collagen can be likened to the process of scarring, which is the way the body heals a wound. For persons with scleroderma, the scarring gets out of hand.
Scleroderma causes the body to produce too much collagen. Collagen is a protein that makes up connective tissues, such as the skin. Too much collagen can make the skin stretch, harden and thicken, and can also cause damage to internal organs, such as the heart, lungs and kidneys.There are 2 types of scleroderma: localized and systemic.Localized scleroderma affects the skin only.oo much collagen can make the skin stretch, harden and thicken, and can also cause damage to internal organs, such as the heart, lungs and kidneys. There are 2 types of scleroderma: localized and systemic.