Histamine is an organic nitrogenous compound involved in local immune responses communication, as well as regulating physiological functions in the gut...
50 KB (4,941 words) - 20:56, 23 August 2024
Antihistamine (redirect from Anti-histamine)
the activity of histamine receptors in the body. In this sense of the word, antihistamines are subclassified according to the histamine receptor that they...
32 KB (3,140 words) - 11:09, 17 August 2024
Histamine intolerance is a presumed set of adverse reactions (such as flush, itching, rhinitis, etc.) to ingested histamine in food. The mainstream theory...
39 KB (4,508 words) - 10:06, 10 September 2024
The histamine receptors are a class of G protein–coupled receptors which bind histamine as their primary endogenous ligand. Histamine receptors are proteins...
10 KB (736 words) - 03:15, 4 June 2024
histamine receptor belonging to the family of rhodopsin-like G-protein-coupled receptors. This receptor is activated by the biogenic amine histamine....
15 KB (1,740 words) - 16:17, 21 August 2024
H1 antagonist (redirect from Histamine h1 antagonists)
called H1 blockers, are a class of medications that block the action of histamine at the H1 receptor, helping to relieve allergic reactions. Agents where...
23 KB (1,881 words) - 19:41, 25 August 2024
Scombroid food poisoning (redirect from Histamine fish poisoning)
converted to histamine when bacterial growth occurs during improper storage. Subsequent cooking, smoking, or freezing does not eliminate the histamine. Diagnosis...
14 KB (1,267 words) - 23:38, 10 March 2024
H2 receptor antagonist (redirect from Histamine-2 receptor blocker)
blockers, are a class of medications that block the action of histamine at the histamine H2 receptors of the parietal cells in the stomach. This decreases...
20 KB (2,233 words) - 03:07, 8 March 2024
Histamine is an organic compound that primarily functions in service of the human body's immune responses as well as for the regulation of many physiological...
17 KB (2,249 words) - 23:16, 29 November 2023
The histamine H4 receptor, like the other three histamine receptors, is a member of the G protein-coupled receptor superfamily that in humans is encoded...
11 KB (1,253 words) - 06:58, 21 July 2024
Histamine N-methyltransferase (HNMT) is a protein encoded by the HNMT gene in humans. It belongs to the methyltransferases superfamily of enzymes and...
50 KB (5,504 words) - 06:27, 15 July 2024
Histamine H3 receptors are expressed in the central nervous system and to a lesser extent the peripheral nervous system, where they act as autoreceptors...
21 KB (2,345 words) - 05:59, 17 July 2024
Hives (section Dietary histamine poisoning)
allergic or not, a complex release of inflammatory mediators, including histamine from cutaneous mast cells, results in fluid leakage from superficial blood...
50 KB (5,739 words) - 01:05, 5 September 2024
Diamine oxidase (redirect from Histamine:oxygen oxidoreductase (deaminating))
1.4.3.22) involved in the metabolism, oxidation, and inactivation of histamine and other polyamines such as putrescine or spermidine. The enzyme belongs...
16 KB (1,910 words) - 12:46, 1 September 2024
A histamine agonist is a drug which causes increased activity at one or more of the four histamine receptor subtypes. H1 agonists promote wakefulness....
1 KB (140 words) - 08:59, 24 August 2024
Histamine dihydrochloride (INN, trade name Ceplene) is a salt of histamine that is used as a drug for the prevention of relapse in patients diagnosed with...
6 KB (476 words) - 11:59, 8 February 2024
H2 receptors are a type of histamine receptor found in many parts of the anatomy of humans and other animals. They are positively coupled to adenylate...
11 KB (1,264 words) - 06:06, 13 July 2024
The underlying mechanism typically involves histamine or bradykinin. The version related to histamine is due to an allergic reaction to agents such...
26 KB (2,993 words) - 20:47, 9 July 2024
selective for the H1 receptor. Compared to other second-generation anti-histamines, cetirizine can cause drowsiness. Second-generation antihistamines that...
36 KB (3,330 words) - 17:56, 7 September 2024
second-generation antihistamine and takes effect by selectively inhibiting the histamine H1 receptor, preventing these allergic reactions. Bilastine has an effectiveness...
25 KB (2,626 words) - 16:57, 25 August 2024
first-generation H1-antihistamine and it works by blocking certain effects of histamine, which produces its antihistamine and sedative effects. Diphenhydramine...
69 KB (6,193 words) - 15:59, 5 September 2024
classified as a second-generation antihistamine and works by blocking histamine H1-receptors. Levocetirizine was approved for medical use in the United...
15 KB (1,144 words) - 01:12, 30 July 2024
Cimetidine (section Histamine H2 receptor antagonism)
Cimetidine, sold under the brand name Tagamet among others, is a histamine H2 receptor antagonist that inhibits stomach acid production. It is mainly...
50 KB (5,133 words) - 06:01, 24 June 2024
H1 antihistamine. It is specifically a potent inverse agonist of the histamine H1 receptor. The drug is also commonly described as possessing weak anticholinergic...
21 KB (1,711 words) - 17:59, 7 September 2024
Betahistine (category Histamine agonists)
medication. Betahistine is a strong antagonist at histamine H3 receptors and a weak agonist at histamine H1 receptors. Betahistine has two mechanisms of...
11 KB (1,209 words) - 13:04, 16 July 2024
Famotidine, sold under the brand name Pepcid among others, is a histamine H2 receptor antagonist medication that decreases stomach acid production. It...
27 KB (2,346 words) - 19:35, 7 September 2024
Bronchial challenge test (redirect from Histamine challenge test)
breathes in nebulized methacholine or histamine. Thus the test may also be called a methacholine challenge test or histamine challenge test respectively. Both...
3 KB (320 words) - 01:45, 11 June 2024
injection into a muscle. Hydroxyzine works by blocking the effects of histamine. It is a first-generation antihistamine in the piperazine family of chemicals...
43 KB (3,711 words) - 17:39, 7 September 2024
pharmacological action by competing with histamine for the H1 subtype histamine receptor. By blocking the effects of histamine, the drug inhibits the vasodilation...
10 KB (734 words) - 20:00, 7 September 2024
resident cell of connective tissue that contains many granules rich in histamine and heparin. Specifically, it is a type of granulocyte derived from the...
49 KB (5,615 words) - 16:27, 8 September 2024