<prompt> Aldosterone receptors are present in all except:LiverColonHippocampusDistal nephron  <response>: A i.e. LiverAldosterone or mineralocoicoid receptor MR, MLR, MCR is expressed in central nervous system hippocampus, hea, kidney, colon, brown adipose tissue and sweat glands but not not in liverQ.It is a steroid hormone receptor that belongs to nuclear receptor subfamily 3, group C, member 2 NR3C2. It is activated by mineralocoicoids eg. aldosterone deoxycoicosterone, as well as by glucocoicoids such as coisol coisone and some progestins.Its activation in epithelial cells leads to expression of proteins regulating ionic and water transpo mainly epithelial sodium channels. ENaC, Na - K pump, serum glucocoicoid induced kinase or SGK1 resulting in absorption of Na causing increased ECF volume BP, and an excretion of K to maintain a normal salt concentration in body. 