Angiotensin 1/2 (5-7) acetate is a peptide with the sequence H2N-Ile-His-Pro-OH. Angiotensin is an oligopeptide and is a hormone and a powerful dipsogen. It is derived from the precursor molecule angiotensinogen, a serum globulin produced in the liver. It

Alamandine can be formed from angiotensin A by action of ACE-2 or directly from angiotensin-(1-7) by decarboxylation of its aspartate residue. The angiotensin A analog produces effects resembling those of Ang II (1-7). However, it acts independently of the two known vasodilators receptors of the RAS (Mas and angiotensin II type 2). To produce its effects, alamandine binds to the Mas-related receptor, MrgD. A novel orally active formulation of alamandine produced a long-term antihypertensive effect in spontaneously hypertensive rats and cardioprotective effects. These novel findings will be helpful for developing a new understanding of the RAS, a key regulator of blood pressure and fluid balance. The heptapeptide could serve as a model peptide, e.g. in the development and evaluation of analytical methods.

Angiotensin 1-7 (Ang-(1-7)) acetate, an endogenous heptapeptide from the renin-angiotensin system (RAS), exhibits cardioprotective effects through its anti-inflammatory and anti-fibrotic activities in cardiac cells. It effectively inhibits purified canine ACE activity (IC 50 =0.65 μM) and serves as a local synergistic modulator of kinin-induced vasodilation by hindering ACE and facilitating nitric oxide release. Additionally, this compound prevents Ang II-induced proliferation and hypertrophy in smooth muscle cells, alongside demonstrating antiangiogenic and growth-inhibitory effects on the endothelium [1] [2] [3].

Angiotensin (1-7) (ASP-ARG-VAL-TYR-ILE-HIS-PRO) is a synthetic heptapeptide identical to endogenous angiotensin-(1-7) , inhibits purified canine ACE activity (IC50=0.65 μM) with vasodilator and antiproliferative activities.

Aclerastide is an angiotensin receptor agonist. Administration of Aclerastide reduced fibrosis and scarring in the healing wounds. This action was more pronounced with longer administration of the peptide after injury. The action of this peptide was block