histamines

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histamine
histamin
histamine
Barsaklarda, histidinin yıkılması sonucu meydana gelen bir madde
histamine
(isim) histamin
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plural of histamine

İlgili Terimler

histamine
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

The intake of food triggers a release of histamine, which activates the acid-secreting cells.

histamine
A naturally occurring substance that is released by the immune system after being exposed to an allergen When you inhale an allergen, mast cells located in the nose and sinus membranes release histamine Histamine then attaches to receptors on nearby blood vessels, causing them to enlarge (dilate) Histamine also binds to other receptors located in nasal tissues, causing redness, swelling, itching, and changes in the secretions
histamine
a physiologically active depressor amine used as a powerful stimulant of gastric secretion, constrictor of bronchial smooth muscle, and vasodilator
histamine
Histamine is a chemical present in cells throughout the body that is released during an allergic reaction Histamine is one of the substances responsible for the symptoms on inflammation and is the major reason for running of the nose, sneezing, and itching in allergic rhinitis It also stimulates production of acid by the stomach and narrows the bronchi or airways in the lungs
histamine
Substance released from mast cells during an allergic reaction It causes itching, sneezing, increased mucous production, and nasal congestion Antihistamine drugs help to block the effects of histamine
histamine
a naturally occurring substance in the body that causes allergic reactions (redness, itching, and swelling) of the nose and eyes This reaction can also occur in the lung, causing the airways to narrow
histamine
Chemical which, when released from mast cells, cause vasodilation and an increase in permeability of blood vessel walls These effects, in turn cause the familiar symptoms of allergy including tearing eyes and running nose Histamine can also cause other symptoms: when released in the lung histamine causes airways to swell shut in an attempt to close the door on offending allergens and keep them out Unfortunately, the ultimate result of this response is the wheezing and difficulty in breathing seen in people with asthma - another occasionally deadly allergic complication which kills 4000 Americans yearly
histamine
(his-ta-mean) - a chemical that is made by mast cells during an allergic reaction
histamine
a substance produced by the body during an allergic reaction
histamine
chemical compound that plays a major role in allergic reactions
histamine
A body chemical involved in signaling for immune and allergic reactions
histamine
amine formed from histidine that stimulates gastric secretions and dilates blood vessels; released by the humane immune system during allergic reactions
histamine
An amine, C{5}H{9}N{3}, 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
histamine
produced by mast cells Causes contraction of smooth muscle so used as tester of airway responsiveness
histamine
A chemical in certain body cells, which contributes to inflammation and causes itching, swelling, sneezing and other allergic symptoms
histamine
A compound found in animal tissue which plays a major role in allergic reactions
histamine
A chemical released by basophils and mast cells that causes nearby tissues to become swollen and inflamed
histamine
a chemical present in cells throughout the body that is released during an allergic reaction and one of the substances responsible for the symptoms of inflammation
histamine
A chemical made naturally in the body that is involved in inflammation, particularly inflammation related to an allergic reaction Antihistamines, as the name suggests, are medicines that block the effect of histamine (Histamine made in a laboratory is sometimes also used in challenge testing )
histamine
{i} amine compound which is released during an allergic reaction
histamine
a naturally-occurring substance that is released by the immune system after being exposed to an allergen When you inhale an allergen, mast cells located in the nose and sinus membranes release histamine Histamine then attaches to receptors on nearby blood vessels, causing them to enlarge (dilate) Histamine also binds to other receptors located in nasal tissues, causing redness, swelling, itching and changes in the secretions
histamine
an amine present in many tissues, release of which can cause dilatation of the capillary blood vessels, flushing and other effects
histamine
A mediator of inflammatory reactions in the body, which may be part of an allergic reaction Present in preformed granules in mast cells and basophils
histamine
is a product of the amino acid, histidene and is released by damaged cells Histamine causes an increase in capillary permeability and vasodilation, two vascular events which are the first stages of inflammation Histamine is also a neurotransmitters substance, released at nerve synapses mostly in the hypothalamus
histamine
a chemical substance produced by your body during an allergic reaction antihistamine (histidine (19-21 centuries) (from histos ) + amine (19-21 centuries) (from ammonia)). Organic compound found in nearly all animal tissues, in microorganisms, and in some plants. Its release stimulates many smooth muscles to contract, such as those in the gastrointestinal tract, uterus, and the bronchi. It causes fine blood vessels to dilate and become more permeable, causing the runny nose, watery eyes, and tissue swelling of hay fever and some other allergies. Histamine appears to have a physiological role in the body's defenses against a hostile environment, since it may be released when the body is subjected to trauma, infection, or some drugs. Under extreme circumstances, the effects of histamine lead to exaggerated responses with distressing results, as may occur in some allergic conditions (see anaphylaxis). Stinging nettles and certain insect venoms contain histamine. In humans, histamine is formed by removal of a carboxyl group from histidine. Its effects are counteracted by antihistamines