Biomaterial Database

Inhibition of platelet function with 2,3-dihydroxybenzoic acid. 1977

M Greenberg, and R W Grady, and C M Peterson

2,3-Dihydroxybenzoic acid (2,3-DHB) inhibits the second wave of platelet aggregation release of serotonin, and malonaldehyde production. The effect is concentration dependent and reversible in vitro and in vivo. 50% inhibition of platelet aggregation induced in vitro with 70 micron adrenaline was obtained with 1.5 mM 2,3-DHB. Malonaldehyde production was inhibited by 50% with 0.4 mM 2,3-DHB. Serotonin release was 50% inhibited by 50% with 0.08 mm 2,3-DHB. Neither desferrioxamine nor various benzoic acid derivatives with iron-chelating properties showed the effect. Only benzoic acid derivatives with the potential to terminate free radical reactions through the formation of an ortho- or paraquinone structure inhibit the second wave of platelet aggregation. These studies support the concept that the second wave of platelet aggregation is mediated through free radical reactions.

UI	MeSH Term	Description	Entries
D008315	Malondialdehyde	The dialdehyde of malonic acid.	Malonaldehyde,Propanedial,Malonylaldehyde,Malonyldialdehyde,Sodium Malondialdehyde,Malondialdehyde, Sodium
D010974	Platelet Aggregation	The attachment of PLATELETS to one another. This clumping together can be induced by a number of agents (e.g., THROMBIN; COLLAGEN) and is part of the mechanism leading to the formation of a THROMBUS.	Aggregation, Platelet
D001792	Blood Platelets	Non-nucleated disk-shaped cells formed in the megakaryocyte and found in the blood of all mammals. They are mainly involved in blood coagulation.	Platelets,Thrombocytes,Blood Platelet,Platelet,Platelet, Blood,Platelets, Blood,Thrombocyte
D003864	Depression, Chemical	The decrease in a measurable parameter of a PHYSIOLOGICAL PROCESS, including cellular, microbial, and plant; immunological, cardiovascular, respiratory, reproductive, urinary, digestive, neural, musculoskeletal, ocular, and skin physiological processes; or METABOLIC PROCESS, including enzymatic and other pharmacological processes, by a drug or other chemical.	Chemical Depression,Chemical Depressions,Depressions, Chemical
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012636	Secretory Rate	The amount of a substance secreted by cells or by a specific organ or organism over a given period of time; usually applies to those substances which are formed by glandular tissues and are released by them into biological fluids, e.g., secretory rate of corticosteroids by the adrenal cortex, secretory rate of gastric acid by the gastric mucosa.	Rate, Secretory,Rates, Secretory,Secretory Rates
D012701	Serotonin	A biochemical messenger and regulator, synthesized from the essential amino acid L-TRYPTOPHAN. In humans it is found primarily in the central nervous system, gastrointestinal tract, and blood platelets. Serotonin mediates several important physiological functions including neurotransmission, gastrointestinal motility, hemostasis, and cardiovascular integrity. Multiple receptor families (RECEPTORS, SEROTONIN) explain the broad physiological actions and distribution of this biochemical mediator.	5-HT,5-Hydroxytryptamine,3-(2-Aminoethyl)-1H-indol-5-ol,Enteramine,Hippophaine,Hydroxytryptamine,5 Hydroxytryptamine
D062385	Hydroxybenzoates	Benzoate derivatives substituted by one or more hydroxy groups in any position on the benzene ring.	Hydroxybenzoic Acids,Acids, Hydroxybenzoic
D066298	In Vitro Techniques	Methods to study reactions or processes taking place in an artificial environment outside the living organism.	In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In