histamine

Histamine (Ergamine) is an amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.

Histamine Phosphate (Histamine acid phosphate) acts directly on the blood vessels to dilate arteries and capillaries mediated by both H 1- and H 2-receptors.

Histamine dihydrochloride (Ceplene) is dihydrochloride form of Histamine. Histamine is an organic nitrogen compound which is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.

N-Acetylhistamine (N-Omega-acetylhistamine) is a metabolite of histamine.

2-(1-Methyl-1H-imidazol-4-yl)ethan-1-amine is a histamine metabolite.

Ethylparaben (Ethyl parahydroxybenzoate) is a Standardized Chemical Allergen. The physiologic effect of ethylparaben is by means of Increased Histamine Release, and Cell-mediated Immunity.

N-Acetylhistamine acetate is a histamine metabolite. It can be used as a potential biomarker of histidine metabolism for anaphylactoid reactions.

The physiologic effect of Methyl Paraben (Nipagin) is by means of Increased Histamine Release, and Cell-mediated Immunity. Methyl Paraben (Nipagin) is an antimicrobial agent, preservative, flavouring agent. Methyl Paraben (Nipagin) is a constituent of cloudberry, yellow passion fruit, white wine, botrytised wine and Bourbon vanilla.The physiologic effect of Methyl Paraben (Nipagin) has been shown to exhibit anti-microbial function.

Protopine (Fumarine) is a benzylisoquinoline alkaloid. It has been found to inhibit histamine H1 receptors and platelet aggregation, and acts as an analgesic.

Mianserin hydrochloride (Org GB 94) is a tetracyclic compound with antidepressant effects. it apparently blocks alpha-adrenergic, histamine H1, and some types of serotonin receptors. It may cause drowsiness and hematological problems.

N tau-methylhistamine is one of the histamine metabolites. N tau-methylhistamine in plasma and urine is a good parameter for histamine release, and the determination of this histamine metabolite is generally less hampered by possible artifacts (due to bas

1-Methylhistamine dihydrochloride is a major metabolite of histamine by histamine N-methyltransferase in the pathway of histidine metabolism. It has been used as a biomarker of histaminergic system activity in the brains of Alzheimer's disease patients as well as those with hypersomnia and other neurological conditions.

Psoralenoside is a natural product isolated from the fruits of Psoralea corylifolia, shows estrogen-like activity, osteoblastic proliferation accelerating activity, antitumor effects and antibacterial activity.

Eugenol (Allylguaiacol) is a Standardized Chemical Allergen. The physiologic effect of eugenol is by means of Increased Histamine Release and Cell-mediated Immunity.

Chlorquinaldol (5,7-Dichloro-8-hydroxy-2-methylquinoline) is a Standardized Chemical Allergen. The physiologic effect of chlorquinaldol is by means of Increased Histamine Release, and Cell-mediated Immunity.

Desloratadine (Sch34117) is a long-acting piperidine derivate with selective H1 antihistaminergic and non-sedating properties. Desloratadine diminishes the typical histaminergic effects on H1-receptors in bronchial smooth muscle, capillaries and gastrointestinal smooth muscle, including vasodilation, bronchoconstriction, increased vascular permeability, pain, itching and spasmodic contractions of gastrointestinal smooth muscle. Desloratadine is used to provide symptomatic relieve of allergic symptoms.

Osthole (Osthol), a potential inhibitor of histamine H1 receptor, has been shown to stimulate osteoblast proliferation and differentiation.

Corchoionoside C has antioxidant activity, shows strong scavenging activities on DPPH radical, it also shows weak antifungal activity. Corchoionosides A, B, and C inhibit the histamine release from rat peritoneal exudate cells induced by antigen-antibody reaction.

Thapsigargicin (Thapsigargicine) acts as an activator for mast cells and leukocytes, prompting histamine release from rat peritoneal mast cells and human basophil leukocytes. Additionally, it elevates cytoplasmic free calcium levels in human blood platelets [1].

Rhodiocyanoside A has antiallergic activity, it exhibits inhibitory activity on the histamine release from rat peritoneal exudate cells sensitized with anti-DNP IgE and inhibits the PCA reaction in rats.

Koaburaside exhibits antioxidant activity with an IC50 value of 9.0μM, it shows weak inhibitory activity against influenza A neuraminidase. Koaburaside may have anti-allergic inflammatory activity, it can suppress histamine release from mast cells.

Bakkenolide D has anti-allergic effect, it and bakkenolide D demonstrates inhibitory effect on the trachea contraction induced by histamine in vitro, they have obvious anti-histamine activities.

Marmin have anti-ulcer effects, which are ascribed primarily to the maintenance of the mucosal barrier integrity and inhibition of gastric motor activity and secondarily due to the prevention of the effects of endogenous acetylcholine and histamine.

Taxiresinol shows anticancer, antinociceptive, and antiallergic activities, it shows inhibitory activity on induced histamine release from the human basophilic cell line, KU812. Taxiresinol can protect the hepatocytes from apoptosis via an inhibition of TNF- alpha production by activated macrophages and a direct inhibition of apoptosis induced by TNF- alpha in D-GalN/LPS-treated mice.

(+)-Columbianetin ((S)-Columbianetin) is a new phytoalexin associated with celery (Apium graveolens) resistance to pathogens during storage, it also has antifungal activity. (+)-Columbianetin has anti-inflammatory effects, it promotes histamine release, and inhibits the histamine release by substance P, suggests that it may be helpful in regulating mast cell-mediated allergic inflammatory responses. (+)-Columbianetin can be effectively used to protect keratinocytes from UVB induced damage.

Alginic acid (Snow acid algin G) is a natural polysaccharide extracted from brown seaweeds with anti-anaphylactic and anti-inflammatory activities. Alginic acid inhibits histamine release and can be used in the food industry.

Zeorin shows strong inhibition activity against bacteria and fungi. It markedly exhibits inhibitory activity on histamine release from mast cell induced by DNP24-BSA, it shows potent inhibitory effect by 40% decrease of histamine release.

Confluentin has antimicrobial activity against the gram-positive bacteria.Confluentin significantly inhibits compound 48/80-induced histamine release from rat peritoneal mast cells. Confluentin also shows weak cytotoxicity against four human tumor cell li

Hydroxyzine (Hydroxyzine free base) is an antagonist of histamine H1-receptor.

L-Histidine (L-(-)-Histidine) is a semi-essential amino acid (children should obtain it from food) needed in humans for growth and tissue repair, L-Histidine is important for maintenance of myelin sheaths that protect nerve cells and is metabolized to the neurotransmitter histamine. Histamines play many roles in immunity, gastric secretion, and sexual functions. L-Histidine is also required for blood cell manufacture and protects tissues against damage caused by radiation and heavy metals.

Conessine (Conessinum), a steroidal alkaloid isolated from Holarrhena floribunda, interacts with the histamine H3 receptor and has anti-malarial activity.

Butylparaben (Butyl 4-hydroxybenzoate) is a standardized chemical allergen, increasing histamine release, and cell-mediated immunity.

3,29-Dibenzoyl rarounitriol is the main active compound of the polychlorinated alkane triterpene esters in Trichosanthes kirilowii and can be used as a quantitative marker of Trichosanthes kirilowii.

Ganoderic acid C2 has anti-inflammatory,and anti-tumor-promoting activities. Ganoderic acid C2 can inhibit histamine release, it also has inhibitory effects on the induction of Epstein-Barr Virus early antigen.

(+)-9'-O-trans-feruloyl-5,5'-dimethoxylariciresinol may have anti-allergic inflammatory effect, it can inhibit release of histamine from mast cells. It shows cytotoxicity against a small panel of human tumor cell lines, with ED50 values of 9.86 to approxi

Diphenhydramine hydrochloride (DPH) is a histamine H1 antagonist used as an antitussive and antiemetic. It is also used for pruritus and dermatoses, for hypersensitivity reactions, as an antiparkinson, a hypnotic, and as an ingredient in common cold preparations.

L-Histidinol dihydrochloride is a precursor of histamine and a reversible inhibitor of protein synthesis.

1. Yunaconitine (Guayewuanine B) has anti-inflammatory and analgesic actions. 2. Yunaconitine was shown to have anti-thermic effect in pyrexial rats when administered orally at a dose of 5 μg/kg. 3. Yunaconitine shows positive effect in the granuloma inhibition test when it was subcutaneously injected, 1 μg/kg for 6 d, or added directly to the cotton-pellet. 4. Yunaconitine inhibited the increased vascular permeability caused byacetic acid and histamine, the leucocyte migratory response induced by injection of 1 % carrageenin .1 ml in rat's thoracic cavity.

Nepetin (6-Methoxyluteolin) has antioxidant activity, it is a potent inhibitor of histamine release and calcium influx via down-regulation of the FcεRI α chain.