Results for “**renin-angiotensin-aldosterone system**”

ACE Inhibitors

ACE inhibitors are a class of medications used to treat high blood pressure, heart failure, and other cardiovascular conditions by blocking the action of angiotensin-converting enzyme (ACE). ## Overview ACE inhibitors are a type of medication that plays a crucial role in managing cardiovascular diseases. They work by blocking the action of angiotensin-converting enzyme (ACE), a naturally occurring substance in the body that constricts blood vessels and increases blood pressure. By inhibiting ACE, these medications relax blood vessels, allowing blood to flow more easily and reducing blood pressure. This class of medications is commonly used to treat conditions such as high blood pressure, heart failure, and diabetic nephropathy. ACE inhibitors are often prescribed for patients with hypertension (high blood pressure), as they have been shown to reduce the risk of cardiovascular events, such as heart attacks and strokes. They are also used to treat heart failure, a condition in which the heart is unable to pump enough blood to meet the body's needs. Additionally, ACE inhibitors are used to slow the progression of kidney disease in patients with diabetes. ## History/Background The concept of ACE inhibitors dates back to the 1970s, when researchers first discovered the role of ACE in regulating blood pressure. The first ACE inhibitor, **Captopril**, was approved by the US FDA in 1981. Captopril was developed by a team of researchers at Squibb Institute for Medical Research, led by Dr. Michael S. Brown and Dr. Joseph L. Goldstein. Since then, several other ACE inhibitors have been developed, including Enalapril, Lisinopril, and Ramipril. ## Key Information * **Mechanism of Action**: ACE inhibitors work by blocking the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor. This leads to vasodilation, reduced blood pressure, and decreased cardiac workload. * **Indications**: ACE inhibitors are used to treat hypertension, heart failure, diabetic nephropathy, and other cardiovascular conditions. * **Side Effects**: Common side effects of ACE inhibitors include cough, dizziness, and fatigue. Rare but serious side effects include angioedema and hyperkalemia. * **Interactions**: ACE inhibitors can interact with other medications, such as potassium supplements and diuretics, which can increase the risk of hyperkalemia. * **Contraindications**: ACE inhibitors are contraindicated in patients with a history of angioedema, kidney disease, or pregnancy. ## Significance ACE inhibitors have revolutionized the treatment of cardiovascular diseases, reducing the risk of cardiovascular events and improving patient outcomes. They have also been shown to slow the progression of kidney disease in patients with diabetes. The development of ACE inhibitors has led to a better understanding of the renin-angiotensin-aldosterone system (RAAS) and its role in regulating blood pressure. INFOBOX: - Name: ACE Inhibitors - Type: Medication - Date: 1981 (approval of Captopril) - Location: Squibb Institute for Medical Research (now part of Bristol-Myers Squibb) - Known For: Development of a new class of medications for treating cardiovascular diseases TAGS: **ACE inhibitors**, **hypertension**, **heart failure**, **diabetic nephropathy**, **cardiovascular disease**, **blood pressure**, **vasodilation**, **renin-angiotensin-aldosterone system**, **medication**