Related Experiment Video
Updated: Apr 26, 2026
15:45
Cardiac Stress Test Induced by Dobutamine and Monitored by Cardiac Catheterization in Mice
Published on: February 10, 2013
17.4K
Androgens and cardiac diseases
Summary
Low testosterone levels are a cardiovascular disease risk factor. Further research on testosterone therapy
Area of Science:
- Cardiology
- Endocrinology
Background:
- Androgens were historically viewed as detrimental to cardiovascular health.
- Emerging evidence suggests beneficial effects of testosterone on cardiac and vascular systems.
Purpose of the Study:
- To evaluate the cardiovascular risk-benefit profile of testosterone therapy.
- To highlight the importance of assessing sex steroids in cardiac patients.
Main Methods:
- Review of existing clinical evidence.
- Identification of knowledge gaps in randomized clinical trials.
Main Results:
- Low plasma testosterone is a significant risk factor for cardiovascular disease.
- Testosterone influences cardiac and vascular remodeling and clinical outcomes positively.
Conclusions:
- Routine assessment of sex steroids is recommended for cardiac patients.
- Understanding testosterone's cardiovascular mechanisms may yield new therapeutic strategies for heart failure and post-cardiac surgery patients.
Related Concept Videos
01:26Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
1.7K
The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
1.7K
01:20Disorders of the Male Reproductive System
5.2K
Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
5.2K
01:26Heart Failure Drugs: Inotropic Agents
1.9K
Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
1.9K
01:30Coronary Artery Disease I: Introduction
1.8K
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
1.8K
01:27Adrenal Gland Disorders
3.7K
Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
3.7K
01:29Pathophysiology of Cardiac Performance
2.2K
Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
2.2K