Cardiovascular Biology

The cardiovascular, or circulatory, system is a closed elastic circuit consisting of the heart, blood vessels (arteries, capillaries and veins) and the blood. Key functions of the cardiovascular system include:

  • Pumping oxygenated blood to tissues
  • Reabsorbing carbon dioxide waste
  • Maintaining body pH, temperature, cellular salt and water content
  • Transporting hormones and nutrients

All Cardiovascular Targets

Acetylcholine Muscarinic Receptors

Endothelin Receptors

Phosphodiesterases

Protein Disulfide Isomerase

Adrenergic Receptors

Ion Pumps/Transporters

Piezo Channels

Purinergic (P2X) Receptors

Angiotensin-Converting Enzyme

LXR-like Receptors

Plasminogen Activator Inhibitor-1

Purinergic (P2Y) Receptors

Angiotensin Receptors

Matrix Metalloproteases

Platelet-Activating Factor (PAF) Receptors

Urotensin-II Receptors

Apelin Receptors

Nitric Oxide Signaling

Prostanoid Receptors

Vasopressin Receptors

Bradykinin Receptors

Oxidative Phosphorylation

Protease-Activated Receptors

VIP Receptors

Cell Adhesion Molecules

Oxygenases/Oxidases

  

Resources

Reagents for Cardiovascular Biology Research
Reagents for Cardiovascular Biology Research

Discover the R&D Systems portfolio of products for cardiovascular research in this brochure including proteins, antibodies, small molecules, ELISA kits, and more.

Atherosclerosis Disease Progression
Atherosclerosis Disease Progression Poster

Explore the key cellular responses and biomarkers involved in atherosclerosis disease progression with this R&D Systems life science poster.

Cardiovascular Biology Background

Cardiovascular Physiology and Function

Blood and lymphatic vessels are lined with a single layer of endothelial cells which mediate nutrient exchange, respond to blood-borne factors, and are the initial contact site for circulating immune cells during inflammation. Arterial vessels are surrounded by a vascular smooth muscle layer which provides physical support to withstand pulsatile blood flow from the heart and also serves to regulate blood pressure through contraction and relaxation. Veins and lymphatic vessels contain valves to endure directional fluid flow. The elastic lamina and adventitia layers provide additional support to blood and lymphatic vessels.

The cardiovascular system is a critical transporter of materials throughout the body. Endocrine glands secrete peptide and small molecule hormones into the circulation to regulate processes in distant tissues of the body. Immune cells circulate in the blood and extravasate through the vascular endothelium to carry out immune reactions at inflammatory sites. They subsequently traffic through lymphatic vessels to regional lymph nodes and return to the circulation to support systemic immunity.

Physical damage to the vasculature triggers activation of the coagulation cascade to induce clot formation and minimize blood loss. Metastasis of solid tumors relies on the circulation for dissemination of tumor cells to secondary sites in malignant cancer.

Cardiovascular Disease

Cardiovascular disease is the leading cause of death globally, accounting for about 30% of deaths worldwide. The term refers to a collection of diseases which affect the heart and blood vessels. These conditions can be genetic in nature or triggered by infection, but the major influences on the development of cardiovascular disease are environmental factors including a high saturated fat intake and a sedentary lifestyle.

One of the most common cardiovascular diseases is atherosclerosis - a condition which is characterized by the buildup of fatty deposits within arterial walls and which can trigger heart attack or stroke through the formation of a blood clot. Damage to the heart muscle caused by a heart attack can alter the contractility of the heart, leading to irregular heartbeats called arrhythmias. A reduced ability of the heart to pump blood around the body can eventually lead to the development of heart failure. Due to the association of cardiovascular disorders, early treatment of these disorders is preferable.

Surgical interventions such as coronary artery bypass and artificial pacemakers are available to treat patients with cardiovascular disease, though the treatments themselves may worsen the overall function of the heart. For many patients, pharmacological intervention is therefore preferable to invasive surgery, particularly for the treatment of early atherosclerosis and high blood pressure. For example, a major breakthrough in the treatment of cardiovascular disease was the development of HMG-CoA reductase inhibitors (statins) for the treatment of raised cholesterol. However, therapy for other diseases such as heart failure and advanced atherosclerosis is lacking and demands further research.