Dab tsi yog qhov tsis sib haum xeeb antagonist?
Dab tsi yog qhov tsis sib haum xeeb antagonist?
Anonim

A non-competitive antagonist yog ib yam uas tsis muaj peev xwm ua tau tus yeeb ncuab uas tuaj yeem ua hauv ib ntawm ob txoj hauv kev: los ntawm kev khi rau ib qho chaw allosteric ntawm tus neeg txais khoom, lossis los ntawm kev thim rov qab los ntawm qhov chaw ua haujlwm ntawm tus neeg txais khoom.

Hauv qhov no, qhov sib txawv ntawm kev sib tw thiab tsis sib tw antagonist yog dab tsi?

A tus yeeb ncuab sib tw khi rau tib qhov chaw raws li cov agonist tab sis tsis qhib nws, yog li thaiv cov cov agonist kev ua. A tsis sib tw antagonist khi rau allosteric (tsis yog agonist ) qhov chaw ntawm lub receptor los tiv thaiv kev ua kom lub receptor.

Ib sab saum toj no, piv txwv tshuaj yeeb tshuaj yeeb yog dab tsi? Piv txwv ntawm tag nrho cov agonists yog heroin, oxycodone, methadone, hydrocodone, morphine, opium thiab lwm yam. Ib tus yeeb ncuab yog a tshuaj uas thaiv opioids los ntawm kev txuas mus rau cov neeg txais tshuaj opioid yam tsis tau qhib lawv. Antagonists ua rau tsis muaj kev cuam tshuam opioid thiab thaiv tag nrho agonist cov tshuaj opioids. Piv txwv yog naltrexone thiab naloxone.

Ib sab ntawm qhov no, hom kev tawm tsam yog dab tsi?

Muaj ob hom antagonism : kev sib tw (thim rov qab, tshaj tawm tau) thiab tsis muaj kev sib tw (rov qab tsis tau, tsis muaj peev xwm kov tau). Piv txwv li, naloxone yog kev sib tw yeeb ncuab ntawm txhua tus neeg txais opioid thiab ketamine yog qhov tsis sib tw tus yeeb ncuab ntawm NMDA-glutamate receptor.

Dab tsi yog qhov sib txawv ntawm antagonist thiab inhibitor?

Ib tus yeeb ncuab yog tshuaj los yog tshuaj uas txo cov nyhuv ntawm agonist. Kev sib tw yeeb ncuab khi rau tib qhov chaw ntawm lub receptor raws li agonist tab sis tsis qhib nws - yog li thaiv qhov kev txiav txim ntawm agonist. Inhibitors yog cov tshuaj uas tuaj yeem khi rau cov protein, xws li cov enzyme thiab txo nws txoj haujlwm.

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