A nucleoside containing adenine as its base. Adenosine acts to dilate the coronary arteries and is employed in the adenosine thallium scan of the heart.

(di-, tri) phosphate (ADP and ATP). A nucleotide composed of adenine, ribose sugar, and two (ADP) or three (ATP) phosphate units; ATP is an energy-rich compound that, with ADP, serves as a phosphate bond-energy transfer system in cells. adhesio Interthalamica

noun. an element, seen in the majority of cells which are alive, being comprised of ribose sugar molecules. Adenosine works a neuromodulator by joining itself to certain receptors, and by impacting th [..]

A neurotransmitter that functions as an inhibitor of various porcesses of the body connected with awakefulness.   

Adenosine is a combination of adenine and ribose that is responsible for neuromodulation in the brain. It is a nucleoside which is a combination of a sugar molecule and purine or pyrimidine. Released [..]

In the context of neural transmission, a neuromodulator that alters synaptic activity. Adenosine receptors are the site of action of caffeine.

A purine nucleoside found in DNA, RNA, and many cofactors.

(n) (biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all living cells in a combined form as a constituent of DNA and RNA and ADP and ATP and AMP

A nucleoside that is composed of Adenine and D-Ribose. Adenosine or adenosine derivatives play many important biological Roles in addition to being components of DNA and RNA. Adenosine itself is a Neu [..]

A stable Adenosine A1 and A2 receptor agonist. Experimentally, it inhibits cAMP and cGMP phosphodiesterase activity.

A nucleoside that is composed of adenine and d-ribose. Adenosine or adenosine derivatives play many important biological roles in addition to being components of DNA and RNA. Adenosine itself is a neu [..]

Adenosine is a naturally occurring chemical in the body. While performing a stress test, it is injected into the body through an IV. It is used to create 'stress' on the heart, and forces th [..]

A neurochemical that inhibits wakefulness, serving the purpose of slowing down cellular activity and diminishing arousal. Adenosine levels decrease during sleep.

A nucleoside form of adenine.

<biochemistry> A ribonucleotide which consists of the nitrogenous base adenine linked to the sugar ribose. <drug> A cardiac drug used in terminating PSVT involving reentry pathways that include the AV node or Wolff-Parkinson-White syndrome. For atrial flutter, atrial fibrillation, atrial or ventricular tachycardias, adenosine may produc [..]

The nucleoside containing adenine as its base.