Adenosine: Is a ubiquitous extracellular signaling molecule

Adenosine is a ubiquitous extracellular signaling molecule with essential functions in human physiology. From providing the backbone for basic energy transfer through its adenosine triphosphate (ATP) and adenosine diphosphate interactions to its role in cell signaling, adenosine is a fundamental component of human biology (1). Adenosine has far-reaching effects as an extracellular signaling molecule inducing vasodilation in most vascular beds, regulating activity in the sympathetic nervous ... Adenosine can form adenosine monophosphate (AMP, i.e. adenosine with a single phosphate group), adenosine diphosphate (ADP, i.e. adenosine with two phosphate groups), and adenosine triphosphate (ATP, i.e. adenosine with three phosphate groups). ATP, in particular, is an energy-rich molecule produced chiefly via cellular respiration. Adenosine is a medication used in myocardial perfusion scintigraphy and to treat supraventricular tachycardia. Adenosine is a chemical found in human cells that has different forms and functions. It is a prescription drug for some heart conditions, but also a supplement for various purposes with uncertain benefits and risks.