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Published on: September 17, 2015
Cardiovascular effects of losartan and its relevant clinical application
Feichao Xu1, Caiping Mao, Yali Hu
1Perinatal Biology Center, Soochow University, Suzhou 215123, China.
Abstract:
The renin-angiotensin system (RAS) plays an important role in the homeostasis of the cardiovascular system and in the development of cardiovascular diseases. An abnormal expression or over activation of the local RAS in the heart and vasculature system is one of the most common mechanisms in pathophysiological processes in cardiovascular diseases. This also provides a basis for medical prevention and treatments using chemical approaches. Losartan is a selective nonpeptite antagonist against type 1 angiotensin II receptors (AT1R), and has been applied in medical treatments of a variety of cardiovascular diseases, including essential hypertension. This article reviews direct and indirect cardiovascular effects of losartan on the heart and blood vessels. It summarizes the chemical basis of AT1R for the action site of losartan,focuses on the mechanisms underlying the action of losartan involved in both the heart and vasculature, and reviews the information that may be helpful in the development of new chemical candidates or approaches in the war against cardiovascular diseases.
Insights
Losartan, a type 1 angiotensin II receptor (AT1R) antagonist, offers cardiovascular benefits by modulating the renin-angiotensin system (RAS). This review details its effects on the heart and vasculature, aiding future cardiovascular disease treatments.
Area of Science:
- Cardiovascular Science
- Pharmacology
- Molecular Biology
Background:
- The renin-angiotensin system (RAS) is crucial for cardiovascular homeostasis and disease development.
- Dysregulated cardiac and vascular RAS contributes to cardiovascular pathologies.
- Losartan is an established AT1R antagonist used for hypertension and other cardiovascular conditions.
Purpose of the Study:
- To review the direct and indirect cardiovascular effects of losartan.
- To elucidate the mechanisms of losartan's action on the heart and vasculature.
- To provide insights for developing novel cardiovascular therapeutics.
Main Methods:
- Literature review of studies on losartan's cardiovascular effects.
- Analysis of the chemical basis of AT1R antagonism by losartan.
- Synthesis of information on losartan's mechanisms in cardiac and vascular tissues.
Main Results:
- Losartan exerts direct and indirect effects on cardiac and vascular functions.
- Its mechanism involves selective blockade of the angiotensin II type 1 receptor (AT1R).
- Evidence supports its role in managing cardiovascular diseases through RAS modulation.
Conclusions:
- Losartan's AT1R antagonism provides a basis for its cardiovascular protective effects.
- Understanding these mechanisms can guide the development of new cardiovascular drugs.
- Targeting the RAS remains a key strategy in combating cardiovascular diseases.
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