Phasic Mesolimbic Dopamine Signaling e kenyelletsa ho khothaletsoa ha ts'usumetso ea ts'usumetso e hlahisoang ke ho hlaphoheloa ha Cocaine (2014)

Neuropsychopharmacology. 2014 May 7. Doi: 10.1038 / npp.2014.96.

Ostlund SB1, LeBlanc KH2, Kosheleff AR3, Wassum KM3, Maidment NT4.

inahaneloang

Bokhoba ba lithethefatsi bo tšoailoe ke ho ts'oara lithethefatsi tsa setso le takatso e matla ea lithethefatsi, haholoholo ka lebaka la tšusumetso e amanang le lithethefatsi. Tsamaiso e pheta-phetoang ea psychostimulant e tsejoa ho kenya phetoho ea nako e telele ho mesolimbic dopamine (DA) e tšoaeang li-hypothesised tse kopanyang kutloisiso ena e phahamisitsoeng ho susumetso ea tikoloho. Leha ho le joalo, ho na le bopaki bo fokolang bo hlakileng ba hore liphetoho tse susumetsoang ke lithethefatsi mosebetsing oa mesolimbic DA li theha hypersensitivity ena lithutong tse susumetsang. Thutong ea hajoale, re lekile mohopolo ona o sebelisa "cyclic voltammetry" e potlakileng ho lekola ho ts'oaroa ha phasic DA maemong a nyutlelie a motsoako oa "cocaine-prereated" (6 hang-letsatsi le leng le le leng la 15 mg / kg, ip) le likhoto tse se nang lithethefatsi nakong ea Teko ea tšusumetso ea cue-evoked susumetso bakeng sa lijo-mosebetsi oa ho fetisoa oa sesebelisoa sa Pavlovian. Re fumane hore ho pepesoa koae pele ho ne ho khothaletsa ho batla meputso le ho lokolloa ha DA ho susumetsoa ke tlhahiso ea polelo e tsamaeang ka moputso. Ntle le moo, DA e ile ea tsosa koae 'me e bontša hore e amana le lijo tse tsoakiloeng,' me ea fumanoa e le mokena-lipakeng oa phello ena ea boitšoaro bo bobe ba koae. Ha li kopantsoe hammoho, liphumano tsena li fana ka ts'ehetso bakeng sa tlhahiso ea maikutlo eo khafetsa e pepesang khokahano ea cocaine e matlafatsang ts'usumetso ea ts'usumetso ea cueic e hlahisitsoeng ke phasic mesolimbic DA signing. Mosebetsi ona o fana ka leseli le lecha ho mochine oa motheo oa neurobiological o nang le boitšoaro bo susumetsang le karolo ea ona ho bonts'a moputso o khothalletsang oa ho batla moputso.Neuropsychopharmacology pele ho phatlalatso ea inthanete, 4 June 2014; Doi: 10.1038 / npp.2014.96.