Related Experiment Videos
Targeting cardiovascular disease with novel SIRT1 pathways
Zhao Zhong Chong1, Shaohui Wang, Yan Chen Shang
1Laboratory of Cellular & Molecular Signaling, Department of Neurology & Neurosciences, Cancer Center, University of Medicine & Dentistry, New Jersey Medical School, Newark, NJ 07101, USA.
Future Cardiology
|December 22, 2011
Summary
Sirtuin 1 (SIRT1) protects against oxidative stress and vascular injury by regulating metabolic homeostasis. Activating SIRT1 offers systemic survival benefits, limiting cardiovascular and cerebrovascular diseases.
Area of Science:
- Biochemistry
- Molecular Biology
- Cardiovascular Science
Background:
- Sirtuin 1 (SIRT1) is a NAD-dependent histone deacetylase crucial for responding to oxidative stress.
- SIRT1 plays a role in maintaining metabolic homeostasis and preventing vascular injury.
Purpose of the Study:
- To elucidate the role of SIRT1 in combating oxidative stress and its protective effects on the cardiovascular system.
- To explore SIRT1's potential in treating cardiovascular and cerebrovascular diseases.
Main Methods:
- The study reviews SIRT1's interactions with key cellular proteins including PPAR-γ, PGC-1α, FOXO, AMPK, NF-κB, and protein tyrosine phosphatase.
- Analysis of SIRT1's modulation of cellular pathways involved in disease pathogenesis.
Main Results:
- SIRT1 activation antagonizes oxidative stress-induced cell injury.
- SIRT1 maintains metabolic homeostasis, thereby blocking vascular system injury.
- SIRT1 activation provides cellular and systemic protection against cardiovascular and cerebrovascular diseases.
Conclusions:
- SIRT1 is a critical regulator against oxidative stress and vascular damage.
- Targeting SIRT1 pathways presents novel therapeutic strategies for cardiovascular diseases.
- Further research into SIRT1 may reduce disability associated with related disorders.
Related Concept Videos
01:29Pharmacogenomics: Identification of New Drug Targets
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
01:26Atherosclerosis III: Management
Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
01:26Coronary Artery Disease II: Pathophysiology
Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
01:30Coronary Artery Disease I: Introduction
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...
01:27Regulation of the Cardiovascular System
The regulation of the cardiovascular system allows the body to adapt to various demands and maintain homeostasis.
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
01:28Nitric Oxide Signaling Pathway
Nitric oxide (NO), an inorganic gas, acts as a potent second messenger in most animal and plant tissues. NO diffuses out of the cells that produce it and enters the neighboring cells to generate a downstream response. NO synthase (NOS) catalyzes NO production by the deamination of the amino acid arginine. There are three isoforms of NOS. Endothelial cells have endothelial NOS (eNOS), nerve and muscle cells have neuronal NOS (nNOS), and macrophages produce inducible NOS (iNOS) upon exposure to...