Related Experiment Video

Updated: Aug 15, 2026

Cardiac Stress Test Induced by Dobutamine and Monitored by Cardiac Catheterization in Mice
15:45

Cardiac Stress Test Induced by Dobutamine and Monitored by Cardiac Catheterization in Mice

Published on: February 10, 2013

Effects of beta blockers and other antihypertensive drugs on cardiovascular risk

A V Chobanian

    The American Journal of Cardiology
    |May 15, 1987
    PubMed

    Insights

    Antihypertensive medications can impact lipid and glucose metabolism. Some agents may worsen lipid profiles and glucose tolerance, potentially affecting cardiovascular risk.

    Area of Science:

    • Cardiology
    • Pharmacology
    • Metabolic Medicine

    Background:

    • Hypertension management is crucial for preventing cardiovascular and renal complications.
    • Coexisting conditions like hyperlipidemia, smoking, and impaired glucose tolerance significantly elevate coronary disease risk in hypertensive patients.

    Purpose of the Study:

    • To review the effects of various antihypertensive agents on lipid and carbohydrate metabolism.
    • To discuss the impact of these agents on left ventricular size and atherogenesis.

    Main Methods:

    • Literature review and analysis of existing studies on antihypertensive agents.
    • Discussion of pharmacological effects on metabolic parameters and cardiovascular outcomes.

    Main Results:

    • Thiazide diuretics can impair glucose tolerance and increase cholesterol, triglycerides, and LDL levels.
    • Beta-blockers (nonselective and beta 1-selective) may increase triglycerides and VLDL, while decreasing HDL levels.

    Conclusions:

    • Antihypertensive therapies have diverse effects on metabolic profiles.
    • Understanding these effects is vital for managing overall cardiovascular risk in hypertensive patients.

    More Related Videos

    Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis07:51

    Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis

    Published on: September 26, 2018

    The Antihypertensive Effects and Mechanisms of Huotan Jiedu Tongluo Decoction in Rats with H-Type Hypertension05:57

    The Antihypertensive Effects and Mechanisms of Huotan Jiedu Tongluo Decoction in Rats with H-Type Hypertension

    Published on: May 17, 2024

    Related Concept Videos

    Adrenergic Antagonists: Pharmacological Actions of β-Receptor Blockers01:27

    Adrenergic Antagonists: Pharmacological Actions of β-Receptor Blockers

    β-receptor blockers significantly impact the cardiovascular system by counteracting catecholamine-induced sympathetic responses. These medications decrease heart rate, contractility, and cardiac output, potentially leading to cardiac depression, life-threatening bradycardia, and death. Therapeutically, β-blockers function as mild antihypertensives and are utilized in treating angina pectoris and cardiac arrhythmias. However, nonselective β-blockers inhibit β2-receptors in bronchial smooth...
    Adrenergic Antagonists: ɑ and β-Receptor Blockers01:31

    Adrenergic Antagonists: ɑ and β-Receptor Blockers

    Third-generation β-blockers, such as labetalol and carvedilol, represent a significant advancement in managing cardiovascular conditions. Unlike conventional β-blockers, which can induce peripheral vasoconstriction, third-generation drugs block α1 adrenoceptors. This promotes vasodilation through several mechanisms, such as increased nitric oxide production, inhibition of calcium ion entry, opening of potassium ion channels, and antioxidant action. Labetalol, for instance, is clinically...
    Antihypertensive Drugs: Action of β1 Blockers01:17

    Antihypertensive Drugs: Action of β1 Blockers

    β1-receptors are primarily located in the heart and kidneys. In cardiac myocytes, these receptors interact with neurotransmitters released by the sympathetic nervous system during heightened activity or danger. As a result, β1-receptors get activated, initiating a series of biochemical processes. Excessive activation of beta receptors due to chronic stress can abnormally increase heart rate and contractility, resulting in high blood pressure or hypertension. To counteract this, β1-blockers...
    Antihypertensive Drugs: Types of β-Blockers01:28

    Antihypertensive Drugs: Types of β-Blockers

    β receptors are classified into three subclasses: β1, β2, and β3. β1 receptors are primarily located in the heart and kidneys. When they get activated, they increase heart rate, contractility, and renin release. This process enhances blood pressure and aids in stress management. In contrast, β2 receptors are situated mainly in the lungs, blood vessels, and skeletal muscles. Upon activation, they trigger smooth muscle relaxation, causing bronchodilation and vasodilation. This widens airways and...
    Antiarrhythmic Drugs: Class II Agents as β-Adrenergic Blockers01:24

    Antiarrhythmic Drugs: Class II Agents as β-Adrenergic Blockers

    Adrenergic stimulation generally impacts cardiac rate and rhythm. Specifically, stimulation of the β-adrenoceptors triggers an increase in intracellular calcium ion influx and pacemaker currents, which may cause arrhythmias. Catecholamines like adrenaline also demonstrate β2-adrenoceptor-mediated hypokalemia, impacting cardiac action potential and disrupting the normal cardiac rhythm. Class II antiarrhythmic drugs are β-adrenoceptor antagonists or β-blockers, which indirectly block calcium...
    Heart Failure Drugs: β-Blockers01:22

    Heart Failure Drugs: β-Blockers

    β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation, vasodilation, and...