inhibitor

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Related to coagulation i's: Coagulation of Blood, Coagulation cascade, Coagulation Disorders, Coagulation factors, coagulation tests

inhibitor

 [in-hib´ĭ-tor]
1. any substance that interferes with a chemical reaction, growth, or other biologic activity.
2. a chemical substance that inhibits or checks the action of a tissue organizer or the growth of microorganisms.
3. an effector that reduces the catalytic activity of an enzyme.
ACE i's (angiotensin-converting enzyme i's) see angiotensin-converting enzyme inhibitors.
angiogenesis inhibitor a group of drugs that prevent growth of new blood vessels into a solid tumor.
aromatase i's a class of drugs that inhibit aromatase activity and thus block production of estrogens; used to treat breast cancer and endometriosis.
C1 inhibitor (C1 INH) a member of the serpin group, an inhibitor of C1, the initial component activated in the classical complement pathway. Deficiency of or defect in the protein causes hereditary angioedema.
carbonic anhydrase inhibitor an agent that inhibits the enzyme carbonic anhydrase; used in treatment of glaucoma and sometimes for epilepsy, familial periodic paralysis, acute mountain sickness, and kidney stones of uric acid.
cholinesterase inhibitor anticholinesterase.
COX-2 i's (cyclooxygenase-2 i's) a group of nonsteroidal antiinflammatory drugs that act by inhibiting cyclooxygenase-2 activity; they have fewer gastrointestinal side effects than other NSAIDs. Two members of the group are celecoxib and rofecoxib.
gastric acid pump inhibitor an agent that inhibits gastric acid secretion by blocking the action of H+,K+-ATPase at the secretory surface of gastric parietal cells; called also proton pump i.
HIV protease inhibitor any of a group of antiretroviral drugs active against the human immunodeficiency virus; they prevent protease-mediated cleavage of viral polyproteins, causing production of immature viral particles that are noninfective. Examples include indinavir sulfate, nelfinavir mesylate, ritonavir, and saquinavir.
HMG-CoA reductase i's a group of drugs that competitively inhibit the enzyme that catalyzes the rate-limiting step in cholesterol biosynthesis, and are used to lower plasma lipoprotein levels in the treatment of hyperlipoproteinemia. Called also statins.
membrane inhibitor of reactive lysis (MIRL) protectin.
monoamine oxidase inhibitor any of a group of drugs that inhibit the action of monoamine oxidase, the enzyme that breaks down norepinephrine and serotonin, prescribed for their antidepressant action; the most widely used ones are isocarboxazid, phenelzine, and tranylcypromine. They are also used in the prevention of migraine.
α2-plasmin inhibitor α2-antiplasmin.
plasminogen activator inhibitor (PAI) any of several regulators of the fibrinolytic system that act by binding to and inhibiting free plasminogen activator. Their concentration in plasma is normally low, but is altered in some disturbances of bodily hemostasis. PAI-1 is an important fast-reacting inhibitor of t-plasminogen activator and u-plasminogen activator. Its synthesis, activity, and release are highly regulated; elevated levels of it have been described in a number of disease states. PAI-2 is a normally minor inhibitor that greatly increases in concentration during pregnancy and in certain disorders. PAI-3 is protein C inhibitor.
platelet inhibitor any of a group of agents that inhibit the clotting activity of platelets; the most common ones are aspirin and dipyridamole. See also antiplatelet therapy.
protease inhibitor
1. a substance that blocks activity of endopeptidase (protease), such as in a virus.
protein C inhibitor the primary inhibitor of activated anticoagulant protein C; it is a glycoprotein of the serpin family of proteinase inhibitors and also inhibits several other proteins involved in coagulation (thrombin, kallikrein, and coagulation factors X and XI) and urokinase. Called also plasminogen activator inhibitor 3.
proton pump inhibitor gastric acid pump i.
reverse transcriptase inhibitor a substance that blocks activity of the reverse transcriptase of a retrovirus and is used as an antiretroviral agent. Some are nucleosides or nucleoside analogues, and those that are not are therefore often called non-nucleoside reverse transcriptase inhibitors.
selective serotonin reuptake inhibitor (SSRI) any of a group of drugs that inhibit the inactivation of serotonin by blocking its absorption in the central nervous system; used as antidepressants and in the treatment of obsessive-compulsive disorder and panic disorder.
serine protease inhibitor (serine proteinase inhibitor) serpin.
topoisomerase i's a class of antineoplastic agents that interfere with the arrangement of DNA in cells.

in·hib·i·tor

(in-hib'i-tŏr, -tōr),
1. An agent that restrains or retards physiologic, chemical, or enzymatic action.
See also: inhibition.
2. A nervous system structure, stimulation of which represses activity.
See also: inhibition.

inhibitor

/in·hib·i·tor/ (in-hib´ĭ-tor)
1. any substance that interferes with a chemical reaction, growth, or other biologic activity.
2. a chemical substance that inhibits or checks the action of a tissue organizer or the growth of microorganisms.
3. an effector that reduces the catalytic activity of an enzyme.

alpha1-proteinase inhibitor  alpha.
angiotensin-converting enzyme inhibitors  competitive inhibitors of angiotensin-converting enzyme; used as antihypertensives, usually in conjunction with a diuretic, and also as vasodilators in the treatment of congestive heart failure.
aromatase inhibitors  a class of drugs that inhibit aromatase activity and thus block production of estrogens; used to treat breast cancer and endometriosis.
C1 inhibitor  (C1 INH) an inhibitor of activated C1, the initial component of the classic complement pathway. Deficiency of or defect in the protein causes hereditary angioedema.
carbonic anhydrase inhibitor  any of a class of agents that inhibit carbonic anhydrase activity; used chiefly for the treatment of glaucoma, and for epilepsy, familial periodic paralysis, mountain sickness, and uric acid renal calculi.
cholinesterase inhibitor  a compound that prevents the hydrolysis of acetylcholine by acetylcholinesterase, so that high levels of acetylcholine accumulate at reactive sites.
COX-2 inhibitors , cyclooxygenase-2 inhibitors a group of nonsteroidal antiinflammatory drugs that act by inhibiting cyclooxygenase-2 activity; they have fewer gastrointestinal side effects than other NSAIDs.
gastric acid pump inhibitor  an agent that inhibits gastric acid secretion by blocking the action of H+,K+-ATPase at the secretory surface of gastric parietal cells; called also proton pump i.
HIV protease inhibitor  any of a group of antiretroviral drugs active against the human immunodeficiency virus, preventing protease-mediated cleavage of viral polyproteins and so causing production of immature noninfectious viral particles.
membrane inhibitor of reactive lysis  (MIRL) protectin.
monoamine oxidase inhibitor  (MAOI) any of a group of antidepressant drugs that act by blocking the action of the enzyme monoamine oxidase; believed to act by thus increasing the level of catecholamines in the central nervous system.
α2-plasmin inhibitor  α.
plasminogen activator inhibitor  (PAI) any of several regulators of the fibrinolytic system that act by binding to and inhibiting free plasminogen activator; the most important are PAI-1 and PAI-2.
platelet inhibitor  any of a group of agents that inhibit the clotting activity of platelets.
protease inhibitor 
1. a substance that blocks the activity of an endopeptidase (protease).
proton pump inhibitor  gastric acid pump i.
reverse transcriptase inhibitor  a substance that blocks activity of the reverse transcriptase of a retrovirus and is used as an antiretroviral agent.
selective serotonin reuptake inhibitor  (SSRI) any of a group of drugs that inhibit the inactivation of serotonin by blocking its absorption in the central nervous system; used to treat depressive, obsessive-compulsive, and panic disorders.

inhibitor

also

inhibiter

(ĭn-hĭb′ĭ-tər)
n.
One that inhibits, as a substance that retards or stops a chemical reaction.

inhibitor

[inhib′itər]
a drug or other agent that prevents or restricts a certain action.

inhibitor

Medtalk A substance that inhibits the activity of protein or downregulates a pathway. See ACE inhibitor, Aldose reductase inhibitor, Angiogenesis inhibitor, Bovine pancreatic trypsin inhibitor, Bowman Birk protease inhibitor, Cartilage-derived inhibitor, Cholinergic inhibitor, COMT inhibitor, Factor VIII inhibitor, FLAP inhibitor, HMG CoA reductase inhibitor, Lipoprotein-associated coagulation inhibitor, Matrix metalloproteinase inhibitor, Monoamine oxidase inhibitor, Neuraminidase inhibitor, Neuropeptide Y inhibitor, Nonnucleoside reverse transcriptase inhibitor, NOS inhibitor, Plasminogen activator inhibitor, Postsynaptic serotonin antagonist-presynaptic serotonin reuptake inhibitor, Protease inhibitor, Reverse transcriptase inhibitor, Selective serotonin reuptake inhibitor, Serotonin-norepinephrine reuptake inhibitor, SLPI inhibitor, SSRI inhibitor, Tissue factor pathway inhibitor, Topoisomerase inhibitor, Trojan Horse inhibitor, Tyrosine kinase inhibitor, Vasopeptidase inhibitor.

in·hib·i·tor

(in-hib'i-tŏr)
1. An agent that restrains or retards physiologic, chemical, or enzymatic action.
2. A nerve, stimulation of which represses activity.
See also: inhibition

inhibitor

agent retarding physiological, chemical or enzymic actions

inhibitor

nerve repressing neurosecretion or activity of another nerve

in·hib·i·tor

(in-hib'i-tŏr)
1. An agent that restrains or retards physiologic, chemical, or enzymatic action.
2. A nervous system structure, stimulation of which represses activity.

inhibitor,

n a substance that slows or stops a chemical reaction.

inhibitor

1. any substance that interferes with a chemical reaction, growth or other biological activity.
2. a chemical substance that inhibits or checks the action of a tissue organizer or the growth of microorganisms.
3. an effector that reduces the catalytic activity of an enzyme.

coagulation i's
clotting factors.
fibrinolytic i's
clotting factors.
phosphodiesterase inhibitor
inhibits phosphodiesterase, which in turn inactivates cyclic adenosine monophosphate. The effect of the inhibitor is to increase the heart muscle content of cAMP.
reversible i's
pharmaceutical inhibitors which have only a temporary effect, e.g. the cholinesterase inhibitors neostigmine, physostigmine.