Crossword clues for histamine
Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
n. (context neurotransmitter English) An amine, C5H9N3, formed by decarboxylation of histidine, that causes dilatation of capillaries, contraction of smooth muscle, and stimulation of gastric acid secretion; it is released during allergic reactions.
n. amine formed from histidine that stimulates gastric secretions and dilates blood vessels; released by the humane immune system during allergic reactions
Histamine is an organic nitrogenous compound involved in local immune responses as well as regulating physiological function in the gut and acting as a neurotransmitter. Histamine is involved in the inflammatory response and has a central role as a mediator of pruritus. As part of an immune response to foreign pathogens, histamine is produced by basophils and by mast cells found in nearby connective tissues. Histamine increases the permeability of the capillaries to white blood cells and some proteins, to allow them to engage pathogens in the infected tissues.
Usage examples of "histamine".
In small concentrations histamine stimulates the secretion of hydrochloric acid by the glands in the stomach lining.
As in the case of epinephrine, histamine affects blood pressure and other facets of the body mechanism.
There is still another hormone that is a modified amino acid, one a bit more complicated in structure than either epinephrine or histamine is.
At least the silly Fssireeme had not fallen in love with a histamine Ghost.
The only aspects of her allergic attacks which seriously threatened her life were general anaphylactic shock and the disruption of her breathing by massive histamine reactions in the throat.
A variety of stimuli, such as inserting a stick up through the nostrils, pinching tendons or injections of histamine under the skinnormally considered forms of torturealso failed to produce any pain.
But histamine produces shock, and shock affects the mind no less profoundly than the body.
When they were not starving themselves into low blood sugar and a vitamin deficiency, or beating themselves into intoxication by histamine, adrenalin, and decomposed protein, they were cultivating insomnia and praying for long periods in uncomfortable positions, in order to create the psycho-physical symptoms of stress.
Cordelia shuddered, detailed visions of unfavorable biochemical and histamine reactions dancing in a molecular crack-the-whip through her head.
Something that generates fatal amounts of histamine in the blood supply.
Allergens, or allergy-producing substances, cause the release of histamine, an organic compound responsible for allergic symptoms.
He would develop no allergies on this planet, anyhow-every molecule of histamine in his blood must have been detoxified in that instant.
INDEX INDEX Abduc«ns nerve, 207 Accessory nerve, 208 Acetylcholine, 132 autonomic nervous system and, 218 Achromatism, 297 Acoustic area, 177 Acoustic nerve, 208, 265 Acromegaly, 95 ACTH, 82 autonomic nervous system and, 219 Addison, Thomas, 76 Addison's disease, 76 ADH, 63 Adrenal glands, 40 Adrenalin, 41 schizophrenia and, 335 Adrenergic nerves, 218 Adrenochrome, 335 Adrenocorticotrophic hormone, 82 Alanine, 10 Albinos, eyes of, 276, 277 Aldosterone, 80 Allergies, histamine and, 43-44 All-or-none law, 137 Alpha waves, 178 Amine group, 9 Amino acids, 8 abbreviations of, 11, 12 arrangements of, 14, 15, 36 Amino acids, contd.
A swarm of histamines rushed forth to combat the dust mites storming into Bubba's sinuses and lungs as he probed with a flashlight on the floor of his Jeep.
The regimen, to be marketed under the name Histamex, consists of individually engineered histamine and immune response blockers delivered through the bloodstream by millions of self-replicating nanomachines, each about one-fifth the size of a human cell.