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Organic compound involved in immune responses
Histamine or histamin is an organic nitrogenous compound found in mammals and many vegetables, fruits and food products. It consists of an imidazole ring
Histamine
Drug that blocks histamine or histamine agonists
the activity of histamine receptors in the body. In this sense of the word, antihistamines are subclassified according to the histamine receptor that they
Antihistamine
Presumed set of adverse reactions
Histamine intolerance is a presumed set of adverse reactions (such as flushing, itching, rhinitis, etc.) to ingested histamine in food. The mainstream
Histamine_intolerance
Drugs that block the action of histamine
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
H1_antagonist
Antihistamine medication
during breastfeeding is not recommended. The medication works by blocking histamine H1 receptors, mostly outside the brain. Cetirizine can be used for paediatric
Cetirizine
Mammalian protein found in Homo sapiens
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
Histamine_H2_receptor
Class of receptor proteins that bind histamine
The histamine receptors are a class of G protein–coupled receptors which bind histamine as their primary endogenous ligand. Histamine is a neurotransmitter
Histamine_receptor
Class of enzymes
Histamine N-methyltransferase (HNMT) is a protein encoded by the HNMT gene in humans. It belongs to the methyltransferases superfamily of enzymes and
Histamine_N-methyltransferase
Type of organic compounds
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
Histamine_liberators
Histamine receptor
histamine receptor belonging to the family of rhodopsin-like G-protein-coupled receptors. This receptor is activated by the biogenic amine histamine.
Histamine_H1_receptor
Antihistaminic drug
antagonist is a type of antihistaminic drug used to block the action of histamine at H3 receptors. Unlike the H1 and H2 receptors which have primarily peripheral
H3_receptor_antagonist
Foodborne illness that typically results from eating spoiled fish
converted to histamine when bacterial growth occurs during improper storage. Subsequent cooking, smoking, or freezing does not eliminate the histamine. Diagnosis
Scombroid_food_poisoning
Mammalian protein found in Homo sapiens
Histamine H3 receptors are expressed in the central nervous system and to a lesser extent the peripheral nervous system, where they act as autoreceptors
Histamine_H3_receptor
Antihistamine medication
than sedation. It is a first-generation H1-antihistamine (i.e. it blocks histamine) with sedative effects. Diphenhydramine is also a potent anticholinergic
Diphenhydramine
Class of medications
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
H2_receptor_antagonist
Mammalian protein found in Homo sapiens
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
Histamine_H4_receptor
Drug to increase activity at histamine receptors
A histamine agonist is a drug which causes increased activity at one or more of the four histamine receptor subtypes. H1 agonists promote wakefulness.
Histamine_agonist
Cell found in connective tissue
contains many small secretory granules for the storage and release of histamine, heparin and other mediators. Derived from myeloid progenitor cells, mast
Mast_cell
Skin disease characterized by red, raised, and itchy bumps
allergic or not, a complex release of inflammatory mediators, including histamine from cutaneous mast cells, results in fluid leakage from superficial blood
Hives
Medication that reduces stomach acid
Famotidine, sold under the brand name Pepcid among others, is a histamine H2 receptor antagonist medication that decreases stomach acid production. It
Famotidine
Antihistamine drug
injection into a muscle. Hydroxyzine works by blocking the effects of histamine. It is a first-generation antihistamine in the piperazine family of chemicals
Hydroxyzine
Antihistamine used to treat allergies
hours. It is a first-generation antihistamine and works by blocking the histamine H1 receptor. Common side effects include sleepiness, restlessness, and
Chlorphenamine
Uncomfortable skin sensation
fibromyalgia Drugs (such as opioids) that activate histamine (H1) receptors or trigger histamine release Chloroquine, a drug used in the treatment and
Itch
Antihistamine medication
This blocking prevents the binding of histamine to these receptors and thus reduces the symptoms of histamine-mediated reactions, such as itching, sneezing
Ketotifen
Enzyme
1.4.3.22) involved in the metabolism, oxidation, and inactivation of histamine and other polyamines such as putrescine or spermidine. The enzyme belongs
Diamine_oxidase
Headache often accompanied by nausea and flushing
different countries. Red wine intolerance is supposedly linked to histamine intolerance. Histamine, a biogenic amine involved in immune responses, gastric acid
Red_wine_headache
Chemical compound
Histamine dihydrochloride (trade name Ceplene) is a salt of histamine that is used as a drug for the prevention of relapse in patients diagnosed with
Histamine_dihydrochloride
Chemical compound
Ciproxifan is an extremely potent histamine H3 inverse agonist/antagonist. The histamine H3 receptor is an inhibitory autoreceptor located on histaminergic
Ciproxifan
Epithelial cell in the stomach
gradients in mammalian tissues. Parietal cells are primarily regulated via histamine, acetylcholine and gastrin signalling from both central and local modulators
Parietal_cell
Antihistamine medication
less drowsiness than cetirizine. Fexofenadine was also shown to inhibit histamine-induced wheal and flare to a significantly greater degree than loratadine
Fexofenadine
Disease characterized by rapid swelling
The underlying mechanism typically involves histamine or bradykinin. The version related to histamine is due to an allergic reaction to agents such
Angioedema
Muscle relaxant medication
serotonin and norepinephrine reuptake and to block serotonin, adrenergic, histamine, and muscarinic acetylcholine receptors. Chemically, it is very similar
Cyclobenzaprine
Pharmaceutical compound
neurotransmitter histamine (imidazole-4-ethylamine). It might have a role as an endogenous signaling molecule or neurotransmitter. IAA is formed from histamine by the
Imidazoleacetic_acid
Type of digestive system cell
via the release of histamine. They are also considered a type of enteroendocrine cell. ECL cells synthesize and secrete histamine. These cells are stimulated
Enterochromaffin-like_cell
Enzyme that converts histidine to histamine
2, and catalyzes the decarboxylation of histidine to form histamine. In mammals, histamine is an important biogenic amine with regulatory roles in neurotransmission
Histidine_decarboxylase
Chemical compound
pharmacological action by competing with histamine for the H1 subtype histamine receptor. By blocking the effects of histamine, the drug inhibits the vasodilation
Chloropyramine
Allergy medication
Clemastine, also known as meclastin, is a first-generation H1 histamine antagonist (antihistamine) with anticholinergic properties (drying) and sedative
Clemastine
Antihistamine medication
classified as a second-generation antihistamine and works by blocking histamine H1-receptors. Levocetirizine was patented in 1965, and approved for medical
Levocetirizine
Type of white blood cell
They also produce compounds that coordinate immune responses, including histamine and serotonin that induce inflammation, and heparin that prevents blood
Basophil
Investigational narcolepsy and hypersomnia drugs
narcolepsy [43] ABT-652 – histamine H3 receptor modulator – sleep disorders [44] Bavisant (BEN-2001; JNJ-1074; JNJ-31001074) – histamine H3 receptor antagonist
List of investigational narcolepsy and hypersomnia drugs
List_of_investigational_narcolepsy_and_hypersomnia_drugs
Skin disorder
thought to be the result of histamine being released by mast cells on the surface of the skin. Despite the lack of antigens, histamine causes the skin to swell
Dermatographic_urticaria
Second generation H1-antihistamine
fatigue. Rupatadine is a second generation, non-sedating, long-acting histamine antagonist with selective peripheral H1 receptor antagonist activity.
Rupatadine
Antihistamine medication
second-generation antihistamine and takes effect by selectively inhibiting the histamine H1 receptor, preventing these allergic reactions. Bilastine has an effectiveness
Bilastine
Medication that decreases stomach acid
Clostridioides difficile colitis. Ranitidine is an H2 histamine receptor antagonist that works by blocking histamine, thus decreasing the amount of acid released
Ranitidine
Medical condition
including itching, hives, and anaphylactic shock, caused by the release of histamine and other pro-inflammatory substances from mast cells. When mast cells
Mastocytosis
Substance related to histamine functions
Histaminergic means "working on the histamine system", and histaminic means "related to histamine". A histaminergic agent (or drug) is a chemical which
Histaminergic
Medication
Cimetidine, sold under the brand name Tagamet among others, is a histamine H2 receptor antagonist that inhibits stomach acid production. It is mainly
Cimetidine
Chemical compound
antagonist or inverse agonist at histamine H3 receptors[medical citation needed] and a weak partial agonist at histamine H1 receptors.[medical citation
Betahistine
Chemical compound
fast-acting. It does not prevent the actual release of histamine from mast cells, it only prevents histamine from binding to receptors. Side effects can include
Mizolastine
Chemical compound
Histamine trifluoromethyl toluidide (HTFMT) is a mixed H1/H2 histamine agonist which is significantly more potent than histamine itself. It also produces
Histamine trifluoromethyl toluidide
Histamine_trifluoromethyl_toluidide
Medical condition
allergic rhinoconjunctivitis (ARC). The symptoms are due to the release of histamine and other active substances by mast cells, which stimulate dilation of
Allergic_conjunctivitis
Chemical compound
is a Histamine H1 receptor antagonist: selectively binding to but not activating the receptor, thereby blocking the actions of endogenous histamine and
Antazoline
Category of pharmaceutical drugs
degranulation of mast cells, stabilizing it and thereby preventing the release of histamine and related mediators. One suspected pharmacodynamic mechanism is the
Mast_cell_stabilizer
Redness of the face due to physiological conditions
syndrome—the syndrome that results from hormones (often serotonin or histamine) being secreted into systemic circulation. abrupt cessation of physical
Flushing_(physiology)
Gastrointestinal system drug
Betazole (also known as ametazole) is a histamine H2 receptor agonist. Betazole hydrochloride is known as gastramine and histalog. It has been used as
Betazole
Medication to treat narcolepsy
sleepiness in adults with narcolepsy. It is an inverse agonist of the histamine H3 receptor. It represents the first commercially available medication
Pitolisant
Medical condition
poorly understood. Nevertheless, there are many known inducers of itch. Histamine is widely known as an inducer of the itch sensation. Other substances
Referred_itch
Nucleus in the mammalian hypothalamus
the tuber cinereum. It largely consists of histaminergic neurons (i.e. histamine-releasing neurons). It is involved with the control of arousal, learning
Tuberomammillary_nucleus
Area of the brain
in the control of nausea and vomiting include acetylcholine, dopamine, histamine (H1 receptor), substance P (NK-1 receptor), and serotonin (5-HT3 receptor)
Chemoreceptor_trigger_zone
Sedating antidepressant
involve increasing the levels of norepinephrine, along with blocking histamine, acetylcholine, and serotonin. Doxepin was approved for medical use in
Doxepin
Type of cell in the stomach and duodenum that secretes gastrin
enterochromaffin-like cells to secrete histamine. Gastrin also targets parietal cells by increasing the amount of histamine and the direct stimulation by gastrin
G_cell
stomach the ACh released from the vagal endings triggers histamine secretion from ECL cells. Histamine also stimulates H+ secretion from parietal cells. 3)
Phases_of_digestion
Digestive fluid formed in the stomach
and histamine from enterochromaffin-like cells. Gastrin acts on parietal cells directly and indirectly too, by stimulating the release of histamine. The
Gastric_acid
Chemical compound
& Development which acts as a potent and selective antagonist at the histamine H4 receptor. It has anti-inflammatory effects, and has been demonstrated
JNJ-7777120
Glands in lining of the human stomach
serotonin and histamine. These cells store and release histamine when the pH of the stomach becomes too high. The release of histamine is stimulated by
Gastric_glands
Chemical compound
is a derivative of quinuclidylcarbinol, which reduces the effects of histamine on organs and systems. Quifenadine is a competitive blocker of H1 receptors
Quifenadine
Antihistamine medication
a selective inverse agonist of peripheral histamine H1 receptors. The potency of second generation histamine antagonists is (from strongest to weakest)
Loratadine
Medical test used to assist in the diagnosis of asthma
breathes in nebulized methacholine or histamine. Thus the test may also be called a methacholine challenge test or histamine challenge test respectively. Both
Bronchial_challenge_test
Chemical compound
Lafutidine (INN) is a second generation histamine H2 receptor antagonist having multimodal mechanism of action and used to treat gastrointestinal disorders
Lafutidine
First-generation antihistamine used as a short-term sedative and hypnotic (sleep aid)
others. As an antihistamine, doxylamine is an inverse agonist of the histamine H1 receptor. As a first-generation antihistamine, it typically crosses
Doxylamine
Visible symptom seen on human skin
These mast cells release inflammatory granules which contain histamine. It is the histamine which is responsible for the response seen after rubbing the
Darier's_sign
Pharmaceutical compound
investigation as a potential treatment for narcolepsy. It is a member of the histamine H3 receptor antagonist/inverse agonist class of medications. Enerisant
Enerisant
Chemical compound
Clobenpropit is a histamine H3 receptor antagonist. It has neuroprotective effects via stimulation of GABA release in brain cells in vitro. Sahlholm K
Clobenpropit
Allergy medication
selective H1-antihistamine which functions as an inverse agonist at the histamine H1 receptor. At very high doses, is also an antagonist at various subtypes
Desloratadine
Tricyclic antidepressant
people with IBS exhibit increased mucosal mast cells, elevated tryptase/histamine, and enhanced proximity of degranulating mast cells to enteric nerves
Amitriptyline
Chemical compound
ἱστός histós "tissue". [failed verification] It is also a precursor to histamine, a vital inflammatory agent in immune responses. The acyl radical is histidyl
Histidine
Class of enzymes
is an enzyme that catalyzes the chemical reaction ATP + L-glutamate + histamine ⇌ {\displaystyle \rightleftharpoons } products of ATP breakdown +
Gamma-glutamylhistamine synthase
Gamma-glutamylhistamine_synthase
Immunological condition
inappropriately and excessively release chemical mediators, such as histamine, resulting in a range of chronic symptoms, sometimes including anaphylaxis
Mast_cell_activation_syndrome
Type of paralyzing anesthetic including lepto- and pachycurares
hypotension, which is partially explained by its effect of increasing histamine release, a vasodilator, as well as its effect of blocking autonomic ganglia
Neuromuscular-blocking_drug
Cutaneous response from firm stroking of skin
population. The triple response of Lewis is due to the release of histamine. Histamine, or 2-(imidazol-4-yl)ethanamine, is a dibasic vasoactive amine that
Triple_response_of_Lewis
Chemical compound
Retrieved 7 November 2010. Tran VT, Chang RS, Snyder SH (December 1978). "Histamine H1 receptors identified in mammalian brain membranes with [3H]mepyramine"
Meclizine
Chemical compound
Thioperamide was found to be an antagonist of histamine autoreceptors, which negatively regulate the release of histamine. The drug enhances the activity of histaminergic
Thioperamide
Genus of eusocial wasp
unless treated promptly. In general, Vespa stings induce the release of histamine due to the various mastoparans that they contain. However V. orientalis
Hornet
Brain state and state of consciousness
control the shift from wakefulness into sleep and sleep into wakefulness. Histamine neurons in the tuberomammillary nucleus and nearby adjacent posterior
Wakefulness
Medical condition
condition is caused by an overreaction of the immune system to the release of histamine and other chemicals in response to the increase in body temperature. This
Cholinergic_urticaria
Sort of synapse
and spinal cord, allowing histamine to mediate attention, arousal, and allergic responses. Of the four types of histamine receptors (H1 - H4), H3 is
Excitatory_synapse
Chemical compound
Histamine glutarimide is an investigational new drug that is being evaluated for the treatment of cough in acute respiratory infection. It is a glutaminyl
Histamine_glutarimide
Antihistamine medication
The drug is taken orally. It is an antihistamine and hence acts as a histamine H1 receptor antagonist. In addition to its antihistamine activity, cyproheptadine
Cyproheptadine
Chemical compound
blocking the release of a number of inflammatory mediators including histamine. Azelastine was patented in 1971 and came into medical use in 1986. It
Azelastine
Small fold of mucous membrane in the eye
caruncle and plica semilunaris may be inflamed and pruritic (itchy) due to histamine release in the tissue and tear film. Dartt DA (2006). "The Conjunctiva—Structure
Plica semilunaris of conjunctiva
Plica_semilunaris_of_conjunctiva
Chemical compound
A-349,821 is a potent and selective histamine H3 receptor antagonist (or possibly an inverse agonist). It has nootropic effects in animal studies, although
A-349821
Behaviour of substances
contrast to histamine, which lowers arterial pressure. Thus, despite not being true antihistamines because they do not bind to and block the histamine receptor
Physiological agonism and antagonism
Physiological_agonism_and_antagonism
Symptom of narcolepsy
inverse agonist of the histamine H3 receptor, which enhances histamine release in hypothalamus. An inverse agonist of the histamine H3 is Pitolisant. Results
Cataplexy
Medical condition
to the degranulation of skin mast cells. Mast cells release proteases, histamine, cytokines, and arachidonic acid metabolites, causing swelling, redness
Chronic_spontaneous_urticaria
Typical antipsychotic medication
histamine H1 receptors. This finding is in agreement with the pharmaceutical development of chlorpromazine and other antipsychotics as anti-histamine
Chlorpromazine
Chemical compound
floribunda, Holarrhena antidysenterica and Funtumia elastica. It acts as a histamine antagonist, selective for the H3 subtype (with an affinity of pKi = 8
Conessine
2025 studio album by Car Seat Headrest
2023, after frontman Will Toledo began to recover from long COVID and histamine intolerance. While recording, collaboration within the band was greater
The_Scholars_(album)
Agents that modulate or mimic monoaminergic neurotransmitters
which include serotonin, dopamine, norepinephrine, epinephrine, and histamine. A monoaminergic, or monoaminergic drug, is a chemical, which functions
Monoaminergic
Drug whose use induces sleep
Antihistamines, also known as histamine H1 receptor antagonists, are a class of drugs that inhibit action at histamine H1 receptors. They are clinically
Hypnotic
Type of cells of the immunological system
They secrete two chemicals that aid in the body's defenses: histamine and heparin. Histamine is responsible for widening blood vessels and increasing the
White_blood_cell
HISTAMINE
HISTAMINE
HISTAMINE
HISTAMINE
Girl/Female
Muslim
Well shaped. Beautiful.
Boy/Male
Hawaiian, Hebrew, Hindu, Indian
The Lord is My Father; Gift of God; Yahweh is My Father
Boy/Male
Arabic
One who Gives Azaan
Boy/Male
Indian
Another name of God
Boy/Male
Muslim/Islamic
Lion
Boy/Male
Biblical
Dedicated, disciplined.
Girl/Female
Tamil
Tejaswi | தேஜஸà¯à®µà¯€
Lustrous, Energetic, Gifted, Brilliant
Boy/Male
Hindu, Indian
Related
Girl/Female
Indian
Ambition
Boy/Male
Tamil
Forthcoming generation
HISTAMINE
HISTAMINE
HISTAMINE
HISTAMINE
HISTAMINE