REN and Hypertension: Although several studies have reported that HFD-induced hypertension increases the expression of RAAS in the kidneys of rodent models [35,36], no differences were found in the expression of the RAAS components (Renin, Ace, Ace2, Angiotensinogen, At1ar, At1br, At2r, and Mas1) in kidneys of SS and SR rats fed a CD or HFD.