| DNB | dinitrobenzene; Diplomate of the National Board [of Medical Examiners]; dorsal nonadrenergic bundle |
|---|---|
| GB | gallbladder; glial bundle; goof balls; Guillain-Barre [syndrome] |
| HBE | His bundle electrogram |
| LB | lamellar body; large bowel; left breast; left bronchus; left bundle; left buttock; leiomyoblastoma; ... |
| MFB | medial forebrain bundle; metallic foreign body |
| congenital heart block | Atrioventricular block present in utero or at birth and usually of advanced or complete degree. (05 Mar 2000) |
|---|---|
| mycothiol-dependent formaldehyde dehydrogenase | <enzyme> Registry number: EC 1.2.1.- Synonym: mdf dehydrogenase (26 Jun 1999) |
| cyclic AMP-dependent protein kinase | Enzymes which attach phosphate groups to the serine or tyrosine amino acids on proteins as a means of regulating the proteins' activity in metabolic reactions. (09 Oct 1997) |
| cyclic AMP-dependent protein kinases | <enzyme> A group of enzymes that are dependent on cyclic AMP and catalyze the phosphorylation of serine or threonine residues on proteins. Registry number: EC 2.7.10.- (12 Dec 1998) |
| cyclic GMP-dependent protein kinases | <enzyme> A group of enzymes that are dependent on cyclic GMP and catalyses the phosphorylation of serine or threonine residues of proteins. Registry number: EC 2.7.10.- (12 Dec 1998) |
| cyclin-dependent kinases | Protein kinases that control cell cycle progression in all eukaryotes and require physical association with cyclins to achieve full enzymatic activity. Cyclin-dependent kinases are regulated by phosphorylation and dephosphorylation events. (12 Dec 1998) |
| cyclin E-dependent kinase | <chemical> Synonym: cyce-h1k, cyce-dependent h1 kinase (26 Jun 1999) |
| hanging-block culture | The propagation of microorganisms on a cube of solidified agar medium which is inoculated, attached to a cover glass, and inverted over a moist chamber or hollowed slide. (05 Mar 2000) |
| cytochrome P-450-dependent digitoxin 12beta-hydroxylase | <enzyme> Isolated from digitalis lantata cell cultures Registry number: EC 1.14.99.- Synonym: digitoxin 12beta-hydroxylase (26 Jun 1999) |
| saddle block anaesthesia | A form of spinal anaesthesia limited in area to the buttocks, perineum, and inner surfaces of the thighs. Synonym: saddle anaesthesia. (05 Mar 2000) |
| S-adenosylmethionine-dependent phosphate methyltransferase | <enzyme> A membrane-bound, phosphorylated oligosaccharide-specific enzyme that selectively methylates the phosphate group of mannose-6-phosphate Registry number: EC 2.1.1.- Synonym: adomet-dependent phosphate methyltransferase, adomet-po4 methyltransferase, mannose-6-phosphate methyltransferase (26 Jun 1999) |
| heart block | <cardiology, physiology> A conduction disturbance that results in the inappropriate delay (or complete inability) of a electrical impulse, generated in the atria, to reach the ventricles (via the atrioventricular node). Clinical types are divided into first (nonserious), second and third degree (most serious) AV blocks. Some drugs may precipitate an AV block (for example clonidine, methyldopa, verapamil). A permanent pacemaker may be required for a third degree (complete) heart block. (07 Apr 1998) |
| protective block | An incompletely understood mechanism whereby a pacemaker is protected from being discharged by the impulse from another centre; the mechanism, usually conceived as an encircling zone of unidirectionally refractory tissue permitting egress of impulses from the centre but preventing access to the centre, is seen in operation in ventricular parasystole where the parasystolic centre is protected from discharge by the sinus pacemaker and so is able to maintain its intrinsic rhythm undisturbed. Synonym: entrance block, protection. (05 Mar 2000) |
| second degree A-V block | See: atrioventricular block. (05 Mar 2000) |
| pupillary block glaucoma | Glaucoma secondary to failure of the aqueous humor to pass through the pupil to the anterior chamber. (05 Mar 2000) |