Receptorium histamini H1

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Structura receptorii histamini H1
Receptorium histamini H1
Chromosoma: 3p25.3 (HRH-1)
Obsessum a drogis his:
ABT-239, Amitriptylinum, Aripiprazolum, Astemizolum, Cetirizinum, Chlorphenaminum, Chlorpromazinum, Ciproxifanum, Clemastinum, Clobenpropitum, Clozapinum, Conessinum, Cyclizinum, Cyproheptadinum, Desloratadinum, Doxepinum, Diphenhydraminum, Epinastinum, Fexofenadinum, Fluphenazinum, Haloperidolum, Histaminum, Hydroxyzinum, Impromidinum, Ketotifenum, Laevocetirizinum, Loratadinum, Loxapinum, Mirtazapinum, MK-0249, Molindonum, Olanzapinum, Perphenazinum, Pimozidum, Pipamperonum, Pitolisantum, Promethazinum, Pyridylethylaminum, Pyrilaminum, Quetiapinum, Risperidonum, Sertindolum, Terfenadinum, Thioridazinum, Thiothixenum, Trifluoperazinum, Trimipraminum, Tripelennaminum, Triprolidinum, Vilazodonum, Ziprasidonum, Zotepinum.

Receptorium histamini H1 (abbreviatura H1R) est simul receptorium histamini typi rhodopsini et familiae receptoriorum proteino G copulatorum (classis Gq) per histaminum ligandum endogenum incitatur[1]. Inveniuntur H1R in musculis levibus intestini nonstriatis, endotheliis vasorum, corde, systemate nervoso centrali, systemate nervoso autonomico.

Hoc receptorium per inflammationem effectus conciliat, pro eo antagonistis receptorii H1 virtutes antiinflammatorii sunt. Receptorii histamini H1 competitores (antagonistae) noti sunt qui receptorium obsidere ergo functiones eorum competere ad postremum antiallergicae efficere possunt. Fatigatio quoque propter receptorii H1 stimulationem inducitur.

Natura receptorii H1[recensere | fontem recensere]

Genetica[recensere | fontem recensere]

Genum nomine HRH1 chromosomate 3 (3p25.3, OMIM: 600167) locatum est[2].

Structura[recensere | fontem recensere]

Structura H1R crystallina investigata per Doxepinum antagonistam inversam est. Effectuum physiologicorum situs anionum pernecesse est[3]. Istac greges chemici ut grex acidi carboxylici R–COOH ad H1R deactivandum interagunt.

Distributio in corpore[recensere | fontem recensere]

Receptoria H1 in musculis levibus intestini nonstriatis, endotheliis vasorum, corde, systemate nervoso centrali, systemate nervoso autonomico[4] locata sunt.

In systemate nervoso centrali et autonomico[recensere | fontem recensere]

In hypothalamo receptoria H1 inventa sunt, quibus effectus pondus augmendi substantiis antipsychoticis explicantur[5].

Natura physiologica[recensere | fontem recensere]

Receptorium histamini H1 receptorium proteino G copulatum[recensere | fontem recensere]

Receptorium histamini H1 proteino G copulatum (classis Gq) est, familia A18 (familia A - Rhodopsin-like, subfamilia A18 - receptoria histamini et aliorum). In cerebro haec receptoria stimulantur neuronis histaminergicis[6] origo quorum est hypothalami nucleus tuberomamillaris. Neuroni nuclei tuberomamillaris enim rhythmum circadianum regulant, et illius activiate status vigilans fit.[7]

Cum receptoria H1 obsessa effectus fatigationis evocantur. Ideo plures substantiae antihistaminicae effectus adversus defatigant.

Inflammatio[recensere | fontem recensere]

Stimulatio receptoriorum H1 significans iter NF-κB promovet,[8][9] itaque responsum systematis immunitatis cum inflammatione graviori, quod est pars reactionis allergicae, sequitur.

Effectus[recensere | fontem recensere]

Antagonistae[recensere | fontem recensere]

Medicamenta[recensere | fontem recensere]

Antagonistae receptoriorum H1 sunt per exemplum:

Nexus interni

Notae[recensere | fontem recensere]

  1. Classificatio internationalis receptorum Histamini: Hill SJ, Ganellin CR, Timmerman H, Schwartz JC, Shankley NP, Young JM, Schunack W, Levi R, Haas HL (1997). Pharmacol. Rev. 49 (3): 253–78
  2. De Backer M. D., Loonen I., Verhasselt P., Neefs J. M., Luyten W. H. (1998). "Structure of the human histamine H1 receptor gene". Biochem J 335 (Pt 3): 663-70 
  3. Shiroishi M, Kobayashi T (2017). "Structural Analysis of the Histamine H1 Receptor". Handb Exp Pharmacol 241: 21-30 
  4. Murakami M., Yoshikawa T., Nakamura T., Ohba T., Matsuzaki Y., Sawamura D., Kuwasako K., Yanagisawa T., Ono K., Nakaji S., Yanai K. (2015). "Involvement of the histamine H1 receptor in the regulation of sympathetic nerve activity". Biochemical and biophysical research communications 458 (3): 584-9 
  5. Kim S. F., Huang A. S., Snowman A. M., Teuscher C., Snyder S. H. (2007). "From the Cover: Antipsychotic drug-induced weight gain mediated by histamine H1 receptor-linked activation of hypothalamic AMP-kinase". PNAS 104 (9): 3456-9 
  6. hic: histaminum per synapses secernens
  7. "The histamine H3 receptor as a novel therapeutic target for cognitive and sleep disorders". Trends in Pharmacological Sciences 25 (12): 618–25. Dec 2004 
  8. Bakker RA, Schoonus SBJ, Smit MJ, Timmerman H, Leurs R (nov 2001). "Histamine H1-Receptor Activation of Nuclear Factor-κB: Roles for Gβγ- and Gαq/11-Subunits in Constitutive and Agonist-Mediated Signaling". Mol Pharmcacol 60 (11): 1133-42 
  9. Canonica GW, Blaiss M (feb 2011). "Antihistaminic, Anti-Inflammatory, and Antiallergic Properties of the Nonsedating Second-Generation Antihistamine Desloratadine: A Review of the Evidence". World Allergy Organ J 4 (2): 47-53 
  10. Sato H, Ito C, Hiraoka K, Tashiro M, Shibuya K, Funaki Y, Yoshikawa T, Iwata R, Matsuoka H, Yanai K (2015). "Histamine H1 receptor occupancy by the new-generation antipsychotics olanzapine and quetiapine: a positron emission tomography study in healthy volunteers". Psychopharmacology (Berl) 232 (19): 3497-505 
  11. Barua RS, Sharma M, Dileepan KN (2015). "Cigarette Smoke Amplifies Inflammatory Response and Atherosclerosis Progression Through Activation of the H1R-TLR2/4-COX2 Axis". Front Immunol 6: 572 
  12. Kim YS, Kim YB, Kim WB, Lee SW, Oh SB, Han HC, Lee CJ, Colwell CS, Kim YI (2016). "Histamine 1 receptor-Gβγ-cAMP/PKA-CFTR pathway mediates the histamine-induced resetting of the suprachiasmatic circadian clock". Mol Brain 9 (1): 49