| ECG | Electro-Cardio-Graphy(-Gram); ½ÉÀüµµ = EKG 1. Conducting System Structu... |
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| BPS | beats per second; Behavioral Pharmacological Society; biophysical profile score; bits per second; bo... |
| C2 | second cervical nerve; second cervical vertebra; second component of complement |
| SR | sarcoplasmic reticulum; saturation recovery; scanning radiometer; screen; secretion rate; sedimentat... |
| mRNA | messenger Ribo-Nucleic Acid |
| CDS | Chemical delivery systems |
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| DDS | Drug delivery systems |
| KBS | Knowledge-Based Systems |
| TPS | Treatment Planning Systems |
| mRNA | E-messenger RNA |
| second messenger systems | Systems in which an intracellular signal is generated in response to an intercellular primary messenger such as a hormone or neurotransmitter. They are intermediate signals in cellular processes such as metabolism, secretion, contraction, phototransduction, and cell growth. Examples of second messenger systems are the adenyl cyclase-cyclic AMP system, the phosphatidylinositol diphosphate-inositol triphosphate system, and the cyclic GMP system. (12 Dec 1998) |
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| second messenger | <molecular biology> In many hormone sensitive systems the systemic hormone does not enter the target cell but binds to a receptor and indirectly affects the production of another molecule within the cell, this diffuses intracellularly to the target enzymes or intracellular receptor to produce the response. This intracellular mediator is called the second messenger. Examples include cyclic AMP, cyclic GMP, IP3 and diacylglycerol. (18 Nov 1997) |
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| masked messenger RNA | <molecular biology> Long lived and stable mRNA found originally in the oocytes of echinoderms and constituting a store of maternal information for protein synthesis that is unmasked (derepressed) during the early stages of morphogenesis. In these early stages the rate of cell division is so rapid that transcription from the embryonic genome cannot occur. Undoubtedly not restricted to oocytes and the term can be applied to any mRNA which is present in inactive form. (18 Nov 1997) |
| messenger | 1. That which carries a message. 2. Having message-carrying properties. First messenger, a hormone that binds to a receptor on the surface cell and, in so doing, communicates with intracellular metabolic processes. Second messenger, an intermediary molecule that is generated as a consequence of hormone-receptor interaction; e.g., see adenosine 3',5'-cyclic monophosphate; guanosine 3',5'-cyclic monophosphate; calcium; inositide. (05 Mar 2000) |
| messenger-like RNA | An ill-defined form of RNA, of high molecular weight, that never leaves the nucleus and is thought to be the precursor of messenger RNA. (05 Mar 2000) |
| messenger RNA | <molecular biology> Single stranded RNA molecule that specifies the amino acid sequence of one or more polypeptide chains. This information is translated during protein synthesis when ribosomes bind to the mRNA. In prokaryotes, mRNA is normally formed by splicing a large primary transcript from a DNA sequence and protein synthesis starts while the mRNA is still being synthesised. Prokaryote mRNAs are usually very short lived (average t 1/2 is 5mins.). In contrast, in eukaryotes the primary transcripts (HnRNA) are synthesised in the nucleus and they are extensively processed to give the mRNA that is exported to the cytoplasm where protein synthesis takes place. This processing includes the addition of a 5' 5' linked 7 methyl guanylate cap at the 5' end and a sequence of adenylate groups at the 3' end, the poly A tail, as well as the removal of any introns and the splicing together of exons, only 10% of HnRNA leaves the nucleus. Eukaryote mRNAs are comparatively long lived with a half life ranging from 30minutes to 24 hours. (27 Jun 1999) |
| adverse drug reaction reporting systems | Systems developed for collecting reports from government agencies, manufacturers, hospitals, physicians, and other sources on adverse drug reactions. (12 Dec 1998) |
| ambulatory care information systems | Information systems, usually computer-assisted, designed to store, manipulate, and retrieve information for planning, organizing, directing, and controlling administrative activities associated with the provision and utilization of ambulatory care services and facilities. (12 Dec 1998) |
| animal identification systems | Procedures for recognizing individual animals and certain identifiable characteristics pertaining to them; includes computerised methods, ear tags, etc. (12 Dec 1998) |
| radiology information systems | Information systems, usually computer-assisted, designed to store, manipulate, and retrieve information for planning, organizing, directing, and controlling administrative activities associated with the provision and utilization of radiology services and facilities. (12 Dec 1998) |
| management information systems | Systems designed to provide information primarily concerned with the administrative functions associated with the provision and utilization of services; also includes program planning, etc. (12 Dec 1998) |
| man-machine systems | A system in which the functions of the man and the machine are interrelated and necessary for the operation of the system. (12 Dec 1998) |
| patient identification systems | Organised procedures for establishing patient identity, including use of bracelets, etc. (12 Dec 1998) |
| medical records systems, computerised | Computer-based systems for input, storage, display, retrieval, and printing of information contained in a patient's medical record. (12 Dec 1998) |
| medication systems | Overall systems, traditional or automated, to provide medication to patients. (12 Dec 1998) |
| medication systems, hospital | Overall systems, traditional or automated, to provide medication to patients in hospitals. Elements of the system are: handling the physician's order, transcription of the order by nurse and/or pharmacist, filling the medication order, transfer to the nursing unit, and administration to the patient. (12 Dec 1998) |
Synonyms : Second Messengers, Intracellular Second Messenger, Messenger, Second, Messengers, Intracellular Second, Messengers, Second, Second Messenger, Second Messenger System, Second Messenger, Intracellular, Second Messengers, Intracellular, System, Second Messenger
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