molecules—the first messengers. (Intercellular signals, a non-local form of cell signaling, encompassing both first messengers and second messengers, are classified...

important signaling role independent of second messenger signaling.[citation needed] A general second messenger system mechanism can be broken down into four...

effect on the target cell may be excitatory or inhibitory. When a second messenger system is activated, it starts a cascade of molecular interactions inside...

Yahoo! Messenger (sometimes abbreviated Y!M) was an advertisement-supported instant messaging client and associated protocol provided by Yahoo!. Yahoo...

flyby of Mercury in January 2008, MESSENGER became the second mission, after Mariner 10 in 1975, to reach Mercury. MESSENGER entered orbit around Mercury on...

important for learning and memory. Metabotropic receptors act through second messenger systems to create slow, sustained effects on their targets. Because of...

phospholipase C (PLC). Together with diacylglycerol (DAG), IP3 is a second messenger molecule used in signal transduction in biological cells. While DAG...

brain. A change in neurotransmitter release is mediated through a second messenger system. The change in neurotransmitter release is by rods. Because of...

brain. Activation of these receptors activates the phospholipase C second messenger system. When given intravenously it may cause panic attacks. Pentagastrin's...

or the initiation of a second messenger system cascade that propagates the signal through the cell. Second messenger systems can amplify or modulate...