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ID number:219303
 
Evaluation:
Published: 16.06.2025.
Language: Latvian
Level: College/University
Literature: 10 units
References: Used
Extract

OPIOĪDU RECEPTORI
Opioīdu receptori ir A klases ar G proteīniem saistītie receptori (GPCR)
4 tipi: μ (mu–), δ (delta–), κ (kappa–) un NOP (nociceptīna–) receptori [7]

Opioīdu receptori savienojas ar inhibējošiem G-proteīniem. Receptoru aktivizēšana izraisa:
cAMP samazināšanos, inhibējot adenilātciklāzi
ar G proteīnu saistīto K+ kanālu (GIRK) atvēršanos, kas izraisa hiperpolarizāciju
lādiņatkarīgo Ca2+ kanālu slēgšanos
Rezultātā samazinās neironu šūnu uzbudināmība → samazinās nervu impulsu pārraide [2]. Samazinās nociceptīvo stimulu pārraide un ievērojami samazinās sāpju uztvere.

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