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[Angiotensin II receptor].

Masatsugu Horiuchi¹

¹First Department of Medical Biochemistry, Ehime University School of Medicine.

Nihon Rinsho. Japanese Journal of Clinical Medicine

|January 24, 2004

Summary

Angiotensin II (Ang II) affects cardiovascular and renal systems. Angiotensin II receptor blockers (ARBs) may exert effects beyond AT1 receptor blockade, potentially involving the AT2 receptor.

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The Protective Arm of Renin Angiotensin System; Recent Research Progress and Expectation for New Therapeutic Approach.

Nihon rinsho. Japanese journal of clinical medicine·2018

Area of Science:

Cardiovascular Science
Renal Physiology
Endocrinology

Context:

Angiotensin II (Ang II) plays a crucial role in regulating hemodynamic, renal, and cardiovascular structure.
Multiple Ang II receptor subtypes exist, with AT1 and AT2 receptors exhibiting antagonistic functions.
Current understanding suggests Angiotensin II receptor blockers (ARBs) may have effects beyond AT1 receptor blockade.

Purpose:

To explore the potential roles of AT2 receptor and other Ang II-related peptides in mediating the effects of ARBs.
To investigate the contribution of the AT2 receptor to cardiovascular disease pathogenesis and remodeling.
To understand how knowledge of the AT2 receptor can elucidate the clinical benefits of ARBs.

Summary:

The study posits that Angiotensin II receptor blockers (ARBs) may exert therapeutic effects not solely through AT1 receptor blockade.
Unblocked Ang II might interact with the AT2 receptor, while Ang 1-7 and Ang IV via the AT4 receptor could also influence ARB actions.
The AT2 receptor's role in cardiovascular disease pathogenesis suggests it may be a key target for ARB-mediated cardiovascular benefits.

Impact:

Enhanced understanding of ARB mechanisms of action in cardiovascular diseases.
Potential for developing more targeted therapies for cardiovascular conditions.
Highlights the importance of the AT2 receptor in cardiovascular health and disease treatment.

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