Ndị na-eto eto ọ na-esikarị ike ịṅụ ọgwụ ọjọọ karịa ndị okenye? Ihe ngosi sitere na ụdị anụmanụ (2009)

Psychopharmacology (Berl). 2009 Sep; 206 (1): 1-21 . Epub 2009 Jun 23.
 

Source

Mahadum Duke, Durham, NC, USA. [email protected]

nkịtị

N'azụ na nkọwa:

Ihe akaebe gbasara ọrịa na-egosi na ndị na-amalite ịnwale ọgwụ eji eme ihe n'oge uto na-enwekarị ike ịmalite nsogbu iji ọgwụ eme ihe (SUDs), mana njikọ a anaghị ekwe nkwa ihe kpatara ya. Ụdị anụmanụ, nke afọ mmalite nwere ike ịchịkwa nke ọma, na-enye ikpo okwu maka ịnwale ihe kpatara ya. Ọtụtụ ụdị anụmanụ na-ekwu maka mmetụta ọgwụ nwere ike ịkwalite ma ọ bụ kwụsị ịṅụ ọgwụ ọjọọ na neuroplasticity nke ọgwụ kpatara.

METHODS:

Anyị enyochala akwụkwọ izizi iji chọpụta ma afọ iri na ụma òké na-enwe mmetụta dị iche iche n'ịkwụghachi ụgwọ, ịgba ume, mgbakasị ahụ, locomotor, na mwepu nke ọgwụ ọjọọ kpatara.

Nsonaazụ na Mkpebi:

Akwụkwọ ihe atụ nke òké na-atụkarị aro na nguzozi nke na-akwụghachi ụgwọ na mmetụta ọjọọ nke ọgwụ ọjọọ eme ihe na-adabere na ụgwọ ọrụ n'oge uto. Agbanyeghị, mmụba ụgwọ ọrụ anaghị eduga n'ịbawanye oriri afọ ofufo: mmetụta afọ na oriri afọ ofufo bụ ọgwụ na usoro akọwapụtara. N'aka nke ọzọ, ndị nọ n'afọ iri na ụma anaghị enwe mmetụta mgbe nile maka mmetụta mwepu, nke nwere ike ichebe pụọ n'ịchọ ọgwụ ike. Nnyocha na-enyocha ọrụ neuronal ekpughere ọtụtụ mmetụta metụtara afọ mana enwebeghị njikọ ndị a na ya vulnerability na SUDs. N'ịchịkọta ọnụ, nchoputa a na-egosi ihe ndị nwere ike ịkwalite iji ọgwụ ntụrụndụ eme ihe na ndị nọ n'afọ iri na ụma, mana ihe akaebe metụtara ịchọ ọgwụ ọjọọ. omume enweghị atụ. A na-akpọ oku maka ọmụmụ ihe n'ọdịnihu iji dozie ọdịiche a site na iji ụdị omume nke ịchọ ọgwụ ọjọọ na maka ọmụmụ neurobiologic iji jikọta mmetụta afọ na SUD ozugbo. vulnerability.

Keywords: Ihe riri ahụ, Mmanya, Cocaine, Amphetamine, Nicotine, Cannabinoids

Okwu Mmalite

A na-ejikarị ọgwụ ndị dị ka cocaine, amphetamine, nicotine, mmanya, na wii wii eme ihe maka ihe ndị na-agbanwe ọnọdụ ha na uche ha. Ihe ndị a nwekwara ike ịdị na-eri ahụ. N'ụfọdụ ndị mmadụ, iji ya eme ihe mgbe niile na-eduga na “mma ahụ riri ahụ” ma ọ bụ “ndabere,” ya bụ, omume mmanye na omume ịchọ ọgwụ ike ugboro ugboro n'agbanyeghị ahụike na-adịghị mma na nsonaazụ ọha. Agbanyeghị, ụdị omume a anaghị eme na ndị ọrụ niile (lee Fig. 1). Ọtụtụ ndị na-anwale ọgwụ ọjọọ anaghị ahụ nsonaazụ ya na-akwụghachi ụgwọ ma zere ha n'ọdịnihu. Ụfọdụ ndị na-enwe mmetụta nke ọgwụ ndị ahụ ma na-eji ha eme ihe ntụrụndụ n'adabereghị na ha. Maka ndị ọzọ, otu ọ dị, ọgwụ ndị ahụ na-enweta ikike dị ike na ndụ ha ma nwee ike dochie nchụso ahụike ndị ọzọ niile (lee Fig. 1). Ọtụtụ ndị na-eji onwe ha aṅụ ọgwụ ọjọọ na-amalite n'oge uto. Ọmụmụ ọrịa na-efe efe egosila na mbido mbụ ị theụ ọgwụ na-ejikọta ya na ohere dị ukwuu nke mmepe nke nsogbu iji ọgwụ eme ihe. Otú ọ dị, e nwere arụmụka banyere ma mmalite mmalite na-emetụta n'ụzọ pụrụ iche na ụbụrụ ụbụrụ n'ụzọ iji kwalite omume ọrịa ma ọ bụ ma otu mkpụrụ ndụ ihe nketa na gburugburu ebe obibi na-eme ka mmadụ nwee ike ịmalite nsogbu ọgwụ na-emekwa ka ha nwee ike ịmalite n'oge. Nyochaa a na-achịkọta nsonaazụ sitere na ụdị anụmanụ nke enyochala mmetụta nke afọ mmalite.

Fig. 1

Pasent nke ndị US karịrị afọ 12 bụ ndị nwara ọgwụ egosipụtara (ọnụ ọgụgụ kachasị elu, okirikiri isi awọ); onye jiri ọgwụ egosipụtara n'ọnwa gara aga (nọmba dị n'etiti, okirikiri isi awọ gbara ọchịchịrị); ndị na-emezu ụkpụrụ maka ịdabere na ...

A na-eji okwu ndị a "mma ahụ riri ahụ," "iji ọgwụ ọjọọ eme ihe," na "ịdabere ọgwụ" n'otu n'otu n'asụsụ obodo ma nwee nkọwa dị iche iche na akwụkwọ ọgụgụ isi, mmekọrịta ọha na eze, na neuroscience. Maka nkọwa doro anya, anyị ga-ezo aka na nsogbu abụọ nke iji ọgwụ eme ihe (SUDs), ịdabere na ọgwụ ọjọọ na iji ọgwụ ọjọọ eme ihe, dịka a kọwara ya site na Diagnostic and Statistical Manual of Mental Disorders version IV (DSM-IV 1994).

Maka nchoputa nke iji ọgwụ eme ihe, onye ọrịa ga-eweta opekata mpe otu n'ime njirimara anọ ndị a:

  1. Iji ihe eme ihe ugboro ugboro na-ebute ọdịda imezu oke ọrụ n'ebe ọrụ, ụlọ akwụkwọ, ma ọ bụ n'ụlọ
  2. Iji ihe eme ihe ugboro ugboro n'ọnọdụ ọ dị ize ndụ n'anụ ahụ
  3. Nsogbu iwu metụtara ihe na-emekarị
  4. Iji ọgwụ eme ihe na-aga n'ihu n'agbanyeghị inwe nsogbu mmekọrịta ọha na eze na-aga n'ihu ma ọ bụ na-emegharị ahụ ma ọ bụ na-akawanye njọ site na mmetụta nke ihe ahụ.

Maka nchoputa nke ndabere ọgwụ, onye ọrịa ga-eweta atọ n'ime njirimara asaa ndị a:

  1. ndidi
  2. ndọrọ ego
  3. A na-ewere ihe ahụ n'ọtụtụ buru ibu ma ọ bụ karịa ogologo oge karịa ka e bu n'obi
  4. Enwere ọchịchọ na-adịgide adịgide ma ọ bụ mbọ na-aga nke ọma iji belata ma ọ bụ ịchịkwa iji ihe eme ihe
  5. A na-etinye oge dị ukwuu na mmemme ndị dị mkpa iji nweta ihe ahụ, jiri ihe ahụ mee ihe, ma ọ bụ nwetaghachi mmetụta ya
  6. Ahapụpụrụ ma ọ bụ belata ihe omume mmekọrịta ọha na eze, ọrụ ma ọ bụ ihe ntụrụndụ n'ihi iji ọgwụ eme ihe
  7. A na-aga n'ihu na-eji ihe a eme ihe n'agbanyeghị na ọ ma na inwe nsogbu anụ ahụ ma ọ bụ nke uche na-adịgide adịgide ma ọ bụ na-emegharị ugboro ugboro nke nwere ike ịbụ ihe kpatara ya ma ọ bụ mee ka ọ dịkwuo njọ.

Abụọ n'ime njirisi maka ịdabere na ọgwụ, nkwụsị na ndidi, metụtara ihe omume physiological nke na-esite na ịṅụ ọgwụ ugboro ugboro na ọ dị mfe ịlele n'ụdị anụmanụ. Ụzọ omume ọhụrụ na-abịarute ihe ịga nke ọma n'ichepụta ụbara oriri, oriri n'agbanyeghị nsonaazụ ọjọọ, na nhọrọ n'etiti ịṅụ ọgwụ ọjọọ na ihe omume ndị ọzọ, dị ka akọwara n'okpuru.

Usoro DSM-IV na-enye “ihe onyonyo” ndị dọkịta nwere ike iji mgbe onye ọrịa chọrọ nyocha ma ọ bụ ọgwụgwọ. Otú ọ dị, ịdabere na ọgwụ ọjọọ bụ n'ezie ọrịa na-aga n'ihu, nke nwere ọtụtụ usoro akọwapụtara nke na-ejikarị oge uto (na-eto eto).Kreek et al. 2005; lee Mkpụrụ fig. 1 na na 2).2). Ndabere ọgwụ na-amalite na-amalite dị ka ojiji ọgwụ nnwale; Ọ dịghị onye nwere ike ịdabere n'ebughị ụzọ aṅụ ọgwụ. Ọtụtụ ndị mmadụ na-anwale ọgwụ ọjọọ (ọ dịkarịa ala mmanya ma ọ bụ ụtaba) n'oge ụfọdụ na ndụ ha, na-anwale n'oge afọ iri na ụma na mmalite 20s (Chen na Kandel 1995). Ụfọdụ ndị ọrụ na-ekwughachi iji ọgwụ eme ihe n'okpuru ọnọdụ ntụrụndụ. Ojiji ọgwụ ntụrụndụ nwere ike ịdịgasị iche n'ọtụtụ ebe mana akọwapụtara ya site n'eziokwu na onye ọrụ nwere njikwa ya. Ndị ọrụ ntụrụndụ na-achọ ọgwụ maka akụrụngwa na-akwụghachi ụgwọ ọ bụghị na mmanye (Kalivas na Volkow 2005). Iji ọgwụ ọjọọ eme ihe na ịdabere na ya na-amalite ịpụta mgbe ojiji na-amanye. Ohere nke ịga n'ihu site na nnwale gaa na iji ntụrụndụ gaa na ndabere dịgasị iche iche site na ọgwụ. Nyocha 1 na-enye nkọwa a na-ahụ anya nke isi ihe a site n'ịkọwa pasentị nke ndị bi na USA karịa afọ 12 bụ ndị aṅụtụla otu ọgwụ, na-eji oge niile, ma ọ bụ dabere. Ọ bụ ezie na pasentị na-etolite ndabere na-adịgasị iche site na ọgwụ ọjọọ, ma eleghị anya, ihe gbasara omenala na nke iwu na-emetụta ya, ọnụ ọgụgụ ndị dabere na-anọchi anya obere mpaghara nke ndị nyochara ọgwụ. Ajụjụ nyocha dị mkpa, yabụ, gịnị kpatara ụfọdụ ndị na-eji ọgwụ eme ihe na-emepụta SUD, ebe ndị ọzọ nwere ike ịnọgide na-enwe naanị ntụrụndụ?

Fig. 2

Oge na-aga n'ihu na ịdabere na ọgwụ ọjọọ (rektangulu) na ụdị anụmanụ metụtara ọkwa ọ bụla (ovals; onwe-admin, nchịkwa onwe onye)

Ọmụmụ ọrịa na-efe efe enyela nghọta na ụfọdụ ihe na-akọwa ọdịiche dị n'etiti ndị na-eme ihe ntụrụndụ na ndị nwere SUD. Otu njikọ a na-ahụkarị bụ na ndị na-amalite iji mgbe ha dị obere nwere ike ịmalite SUDs (Robins na Przybeck 1985; Meyer na Neale 1992; Lewinsohn et al. 1999; Prescott na Kendler 1999; DeWit et al. 2000; Lynskey et al. 2003; Brown et al. 2004; Patton et al. 2004) ma na-enwekarị ọganihu ngwa ngwa site na nnwale gaa na iji nsogbu (Chen na Kandel 1995; Chen et al. 1997). Mmekọrịta a bụ isi ihe nyocha dị ugbu a. Ihe ndị ọzọ na-enye aka gụnyere akụkọ ezinụlọ nke SUDs (Hoffmann na Su 1998; Hill et al. 2000) na psychopathology dị ka ịda mbà n'obi, nchekasị, nsogbu nlebara anya, schizophrenia, na nsogbu omume (Deykin et al. 1987; Russell et al. 1994; Burke et al. 1994; Abraham na Fava 1999; Compton et al. 2000; Shaffer na Eber 2002; Costello et al. 2003). Ihe ndị a niile bụ jikọtara nwere nnukwu ihe ize ndụ nke mmepe nke SUD, mana ihe kpatara ya siri ike ikwu okwu na ọnụ ọgụgụ mmadụ. Na nyocha a, anyị ga-enyocha mbọ nke ụdị anụmanụ iji lebara ajụjụ anya ma ịṅụ ọgwụ ọjọọ n'oge ọ bụ nwata akpata ma ọ bụ naanị ihe dabara na mmepe SUD.

Ọ dị oke mkpa n'oge a ịkọwa ihe anyị na-ekwu site na "nwata." Nnwale mmanya, ụtaba, na wii wii na-amalitekarị n'oge afọ iri na ụma (SAMHSA 2008). Ịṅụ mmanya na-aba n'anya na-eru ihe dị ka afọ 18-20 ma na-adaba n'ime okenye (Chen na Kandel 1995). Marijuana na ụtaba na-eji ọnụ ọgụgụ kasị elu ntakịrị ka e mesịrị, n'etiti afọ 19 na 22 (Chen na Kandel 1995). Cocaine na-eji ọnụ ọgụgụ kasị elu na mmalite ruo etiti afọ 20 ma na-adabakwa ịghọ okenye (Chen na Kandel 1995). Ụdị eji ọgwụ ọjọọ eme ihe n'oge afọ gụnyere nyocha na njedebe afọ iri na ụma na mmalite 20s, yabụ ndị na-anwale tupu oge ndị a (mmanya na-aba n'anya na sịga n'oge nwata ma ọ bụ ndị ntorobịa ma ọ bụ ọgwụ na-akwadoghị na ndị nọ n'afọ iri na ụma) kacha nọrọ n'ihe ize ndụ. . Ọ bụ ezie na ọtụtụ ọmụmụ na-eji afọ mmalite tupu afọ 15 dị ka nkwụsị maka "mmalite mmalite," enwere, n'ozuzu, njikọ dị iche iche: ndị ọrụ na-eto eto nwere ike ịmalite SUDs.

Ọ bụ ezie na mmekọrịta dị n'etiti afọ mmalite na ụgwọ SUD kwadoro nke ọma n'ime mmadụ, ọ naghị agwa anyị ma iji oge mbụ eme ihe bụ ihe kpatara ya. Ọmụmụ ọrịa na-efe efe iji nwalee ihe kpatara ya chọrọ ọmụmụ ejima ma ọ bụ ogologo ogologo nke siri ike ma dị ụkọ. Ọmụmụ ejima abụọ arụpụtala nsonaazụ na-emegiderịta onwe ya, n'agbanyeghị na enwere ihe dị iche iche. Otu nnukwu ọmụmụ na-enyocha ihe ize ndụ nke ịṅụ mmanya na-aba n'anya na ịdabere na ya kọrọ na afọ nke mmalite na-ejikọta ma ọ bụghị ihe kpatara mmepe nke ịṅụ mmanya na-aba n'anya.Prescott na Kendler 1999). N'ụzọ dị iche, ntakịrị ọmụmụ banyere ejima bụ ndị na-enweghị mgbagha maka ịṅụ wii wii n'oge mbụ kọrọ na afọ mmalite bụ ihe kpatara mmepe nke iji ọgwụ ọjọọ eme ihe na nsogbu ịṅụbiga mmanya ókè.Lynskey et al. 2003). Ya mere, enwere ihe akaebe na-adịghị ahụkebe na arụmụka na-adịgide adịgide n'ime akwụkwọ ọrịa na-efe efe gbasara ihe kpatara iji ọgwụ na-amalite n'oge dị ka ọ metụtara nsogbu ọgwụ na-emecha. Ọmụmụ mmadụ na-egosi na akụkọ ihe mere eme ezinụlọ na psychopathology na-abawanye ohere nke mmalite mmalite (Tarter et al. 1999; Franken na Hendriks 2000; McGue et al. 2001 a, b). Ya mere, mmetụta nje na gburugburu ebe obibi ndị a na-arụ ọrụ site na mmalite mmalite iji welie adịghị ike na SUDs? Ma ọ bụ ndị ọrụ nwere akụkọ ihe mere eme ezinụlọ na/ma ọ bụ psychopathology ga-emepụta SUD n'agbanyeghị mgbe ha malitere? Ajụjụ ndị a siri ike ịza na ọmụmụ mmadụ. Iji kwupụta nke ọma ihe kpatara mkpughe ọgwụ mbụ na SUD mechaa, ụdị anụmanụ dị mkpa.

Ụdị anụmanụ nwere uru dị iche iche nke njikwa nnwale. Ndị na-anwale nwere ike ịkenye afọ nke ekpughere mbụ, yana ọgwụ, dose, ogologo oge, na oge ikpughe, ebe, na ọmụmụ mmadụ, onye ọrụ na-ekpebi ọnọdụ ndị a. N'ihi nke a, ụdị anụmanụ enyela ozi bara uru dị ukwuu. Otú ọ dị, otu ihe ndọghachi azụ n'iji anụmanụ eme ihe bụ na ọ dịghị ihe nlereanya na-emegharị usoro na mmepe nke SUD kpamkpam. N'ihi nke a, anyị ga-ejikọta nsonaazụ sitere na ọtụtụ ụdị omume na neurobiological iji nweta nghọta zuru oke.

Ụdị omume rodent nke nsogbu iji ihe eme ihe

Ọrụ omume rodent na-egosiputa usoro bụ isi nke bụ akụkụ nke SUD pathology mana enweghị ike iṅomi ọrịa ahụ kpamkpam. Ejila ọtụtụ ụdị nke dị iche na nkwado na mkpa ọnọdụ mmadụ ma chịkọtara n'okpuru na n'ime. Fig. 2.

Nhọrọ ebe a chọrọ

Emebere mmasị ọnọdụ ọnọdụ (CPP) iji chọpụta ma ọgwụ ọ na-akwụghachi ụgwọ. A zụrụ anụmanụ ahụ ka ọ jikọta ebe ya na mmetụta na-akwụghachi ụgwọ nke mmetụta ndị na-eme nnwale na-ebute ọgwụ. Ọ bụrụ na anụmanụ ahụ emesịa na-abịaru nso n'ebe ahụ metụtara ọgwụ, mgbe ahụ, a na-ewere ọgwụ ahụ na-akwụghachi ụgwọ (Carr et al. 1989; Bardo na Bevins 2000). A na-eche na ọgwụ ndị na-enye ụgwọ ọrụ nwere ike ịchọ karịa ọgwụ ndị na-adịghị akwụ ụgwọ. Nnwale a bara uru n'ịle ọkwa na nnọgidesi ike nke ụgwọ ọrụ ọgwụ butere. Ọ bụghị ihe atụ bara uru nke ịchọ ma ọ bụ ịṅụ ọgwụ ọjọọ. Nnwale a na-enwekwa mmetụta nke ukwuu: ọgwụ ọjọọ eme ihe na-enyekarị ụgwọ ọrụ ma ọ bụrụ na ọ dị obere ma ọ bụ na-agafeghị oke ma na-ajụ na oke doses.

Ọnọdụ ọnọdụ na ịkpọasị ụtọ

Emebere ule ndị a iji nyochaa mmetụta ọjọọ nke ọgwụ eji eme ihe. A na-eche na mmetụta mgbagha na-akụda oriri. N'ime ọrụ ndị a, a na-azụ ụmụ anụmanụ ka ha jikọta ebe ma ọ bụ ekpomeekpo na-atọ ụtọ na mmetụta ndị na-esite n'aka onye na-anwale ọgwụ.Welzl et al. 2001). Mwepu nke ebe ma ọ bụ ekpomeekpo na-esote na-egosi mmetụta na-adịghị mma. Nnwale ndị a na-atụle mmetụta-mmachi ojiji nke ọgwụ ọjọọ eme ihe mana anaghị egosipụta ịchọ ma ọ bụ ịṅụ ọgwụ ọjọọ.

ndọrọ ego

Mwepụ bụ mkpokọta mgbanwe mmetụta na physiological nke na-eme mgbe ọ kwụsịrị ịṅụ ọgwụ ụfọdụ. Mgbaàmà na-adịgasị iche dabere na ọgwụ riri, ogologo oge, na oke ikpughe ma na-egosipụta ngbanwe nke mmetụta ọgwụ mbụ. Ọtụtụ n'ime omume ndị a na-adị mfe n'ụdị anụmanụ. Ọmụmaatụ, mwepu ethanol bụ akara ngosi nke mkpali onwe ya na ịgbalite omume dịka piloerection, ịgbalite locomotor, ịma jijiji, na ọdịdọ (ọdịdọ).Majchrowicz 1975). Ịwepụ site na opiates na-eme ka omume ma na-arụ ọrụ nke onwe ya dị ka ptosis gosipụtara, nkwupụta ezé, lacrimation, nkịta mmiri na-ama jijiji, na ịwụ elu (Rasmussen et al. 1990). Ịwepụ na nicotine gụnyere ihe nrịbama nke onwe na omume dịka ịma jijiji ahụ, ịma jijiji, iwe iwe, mbọ mgbapụ, ịta ata, gasping, ptosis, eze na-akpa nkata, na ikwọ (O'Dell et al. 2007 b). Ihe ịrịba ama ndị a niile na-emetụta mmetụta mmadụ (DSM-IV 1994). Maka psychostimulants dị ka cocaine na amphetamine, a na-ahụkarị ihe ịrịba ama nkwụsị nke anụ ahụ dị ka ndị a (DSM-IV 1994). Mwepụ na psychostimulants na ọtụtụ ọgwụ ọjọọ ndị ọzọ na-ebute "ọnọdụ mkpali na-adịghị mma" n'ozuzu nke e ji ụgwọ ụgwọ ọrụ dị elu nke enwere ike nyochaa site na iji mkpali onwe onye (intracranial).O'Dell et al. 2007 b). Mwepụ na-ewepụtakwa ọnọdụ nchekasị nke enwere ike ịlele site na iji ọtụtụ ụdị dị ka nnwale mmekọrịta ọha na eze, elu gbakwunyere maze, ọrụ ìhè-ọchịchịrị, na ndị ọzọ (lee n'okpuru).

Omume locomotor

Ọtụtụ ọgwụ ndị a na-emegbu emegbu na-akpali omume locomotor site na ịgbalite sekit dopaminergic nke na-enye aka na mmetụta ha na-ewusi ike (1987 maara ihe; Di Chiara 1995). Cocaine na amphetamine na-abawanye ọrụ moto n'ụzọ abụọ. Na obere doses, a na-abawanye ọrụ ambulatory, nke a na-atụkarị ka mmụba nke ngafe matriks ma ọ bụ njem dị anya. N'ọ̀tụ̀tụ̀ dị elu, ebe mgbada na-ada na omume stereotypic nwere ike ịpụta, nke a na-egosipụta dị ka mmụba nke imi imi, ejiji, ịcha isi, ma ọ bụ omume ugboro ugboro ndị ọzọ yana mbelata nke njem dị anya. Ethanol, n'ime ụmụ mmadụ, na-achọ ka ọ na-arụ ọrụ na obere doses (nke nwere ike ịpụta site na nkwụsịtụ belata) na ịgbatị na nnukwu doses (DSM-IV 1994). N'ime oke, a kọwala ethanol ka ọ na-abawanye ma ọ bụ na-ebelata locomotion, mana mmetụta dose anaghị adịkarị n'usoro mmadụ (lee n'okpuru). N'otu aka ahụ, nicotine nwere ike ịbawanye ma ọ bụ ibelata locomotion na òké (lee n'okpuru). Ndị opiates nwekwara ike ime ka ọ rụọ ọrụ locomotor (Buxbaum et al. 1973; Pert na Sivit 1977; Kalivas et al. 1983). Mu opioid agonists na-ebute mkpali locomotor na ụmụ oke na oke, yana ọgwụgwọ ugboro ugboro na-ebute nghọta (Rethy et al. 1971; Babbini na Davis 1972; Stinus et al. 1980; Kalivas na Stewart 1991; Gaiardi et al. 1991). Na nchịkọta, nzaghachi moto siri ike bụ otu ihe na-egosi mmetụta ọgwụ mana ọ na-agbanwe nke ukwuu.

Ikpughe ugboro ugboro na nke ọ bụla n'ime ọgwụ ndị a nwere ike iduga n'ihe a na-akpọ sensitization, bụ nke na-abawanye nzaghachi ambulatory ma ọ bụ stereotypic na obere dose ugboro ugboro.Shuster et al. 1975a, b, 1977, 1982; Aizenstein et al. 1990; Segal na Kuczenski 1992, b). Sensitization bụ ngosipụta nke mgbanwe neuroplastic na nzaghachi nke ikpughe ugboro ugboro, ụfọdụ ndị nchọpụta echewokwa na ọ bụ mmekọrịta omume nke ịba ụba nke agụụ ọgwụ na mmepe nke ịdabere (Robinson na Berridge 1993, 2000, 2001, 2008), ọ bụ ezie na ndị ọzọ na-arụrịta ụka n'okwu a (Di Chiara 1995). N'ụzọ doro anya, mmetụta uche na-anọchi anya mgbanwe neuroplastic na-adịgide adịgide nke a na-atụle ngwa ngwa. A ka na-arụrịta ụka banyere mkpa ya na ịdabere na ọgwụ ọjọọ.

Nlekọta onwe onye

Ebe ọ bụ na ụmụ mmadụ na-aghọ ndị ọgwụ ọjọọ riri ahụ n'afọ ofufo na-aṅụ ọgwụ ọjọọ, ọ dị mkpa iji nyochaa ụdị anụmanụ nke anụ ahụ na-eji aka ya na-enye ọgwụ (ma ọ bụ "onwe ya"). Maka ọgwụ ndị dị ka cocaine na nicotine, a na-enweta nchịkwa onwe onye (SA) n'ime òké site na nchịkwa intravenous site na catheters jugular na-ebi (ebe ọ bụ na òké agaghị atụkwasị obi ma ọ bụ na-aṅụ sịga ndị a). N'ezie, ọ bụ ezie na ọtụtụ ndị nọ n'afọ iri na ụma adịghị eji ụzọ eriri afọ na-enye cocaine na nicotine, ha na-eji ụzọ ndị na-eme ka ọgwụ ndị ahụ na-abanye ngwa ngwa n'ime ọbara (mbelata nke cocaine, ịṅụ sịga nke cocaine na nicotine). Ethanol na-enye ihe nlereanya dị mfe karị n'ihi na a na-eme ya ngwa ngwa n'ọnụ na òké, ọ bụrụhaala na a na-achịkwa uto, oriri caloric, na nguzozi mmiri nke ọma. A na-eji ma ụzọ ọnụ na eriri afọ iji chọpụta afọ dabere na oriri afọ ofufo n'ụdị anụmanụ.

A na-eche na anụmanụ ndị na-enweta àgwà ịchọ ọgwụ ike ngwa ngwa ma ọ bụ na-eme ya ugboro ugboro ka ha yiri ndị ọgwụ ọjọọ riri ahụ mmadụ. Otú ọ dị, ịṅụ ọgwụ ọjọọ, ọbụna mgbe a na-enweta ya ngwa ngwa, adịghị ka ịdabere na ọgwụ ọjọọ. Ụmụ anụmanụ na-anwale ga-arụkwa ọrụ iji nweta nri na ọnọdụ gburugburu ebe obibi ndị ọzọ na-enweghị ụgwọ mmetọ ọ bụla. Àgwà ndị yiri ndabere na-achọ nnwale dị mgbagwoju anya karị, yana e nwere ọtụtụ usoro nhazi ọrụ ọkaibe nke a na-eji ugbu a nke na-enye ụdị SUDs ka mma. Otu ihe atụ dị otú ahụ bụ nzaghachi na-aga n'ihu na-aga n'ihu, nke infusion ọ bụla na-aga n'ihu na-achọ ka ntanye lever karịa nke gara aga. Emebere usoro ihe omume a iji chọpụta ihe mkpali ịchọ ọgwụ ahụ (Hodos 1961; Roberts et al. 1989; Depoortere et al. 1993). A na-eji ụkpụrụ mkpochapụ na iweghachite iji gosipụta nlọghachi azụ (de Wit na Stewart 1981; Shaham et al. 2003). A na-eji oge nkwụsị na nzaghachi ntaramahụhụ iji gosipụta iji mmanye eme ihe (Vanderschuren na Everitt 2004; Deroche-Gamonet et al. 2004). A na-eji usoro ọzụzụ ohere agbatịgoro ma ọ bụ nweta ogologo oge (LgA) iji gosipụta ogo dị elu ma ọ bụ iji nnukwu ihe.Knackstedt na Kalivas 2007; O'Dell et al. 2007a; George et al. 2008; Mantsch et al. 2008). N'ụdị nchịkwa onwe onye zuru oke. Deroche-Gamonet et al. (2004) jikọtara ọtụtụ n'ime usoro ndị a wee hụ na obere pasent nke oke na-achịkwa onwe ya gosipụtara ọtụtụ omume ịdabere na ya, yiri nsonaazụ enwetara na ọnụọgụ mmadụ nke egosiri na. Fig. 1. Ụdị ndị a ka na-amalite ịpụta na ọmụmụ ihe atụnyere ndị nọ n'afọ iri na ụma na ndị okenye.

Ịhọrọ ụdị omume

Enwere ike ịrụ ụka gbasara mkpa nke ọ bụla n'ime ụdị òké ndị a na SUD mmadụ. Na nyocha nke na-esote, anyị na-ekenye ibu dị ukwuu na ụzọ ndị na-abịaru nso n'ichepụta SUD mmadụ yana obere ibu na ụdị ndị na-ejikọtaghị nke ọma na ịṅụ ọgwụ ọjọọ. Ya mere, ọmụmụ na-eji ụzọ mgbagwoju anya nke nchịkwa onwe onye (nha na-aga n'ihu, mkpochapụ, iweghachite, ntaramahụhụ, LGA, wdg) nwere ike bụrụ ihe kacha enye nkọwa gbasara adịghị ike na SUD. Otú ọ dị, ndị a bụ usoro kachasị ọhụrụ, bụ ndị kasị sie ike iji n'ọrụ na ọmụmụ ihe mmepe, ya mere, a na-enyocha ndị na-eto eto na ndị toro eto. Na-esote, anyị na-ekenye ihe dị ka nha nha nha na ọmụmụ na-enyocha mmekwata, ụgwọ ọrụ, mgbagha, na nkwụsị nke ọgwụ ndị a (nchịkwa onwe dị mfe, mmasị ebe nwere ọnọdụ, uto nwere ọnọdụ / ịkpọasị ebe, na nkwụsịtụ, n'otu n'otu). Usoro ndị a niile metụtara ihe ịtụnanya ndị na-akwalite ma ọ bụ na-akụda ịṅụ ọgwụ ike, ya mere ọ bara uru n'ụzọ na-apụtaghị ìhè nke mmasị maka ịṅụ ọgwụ. Anyị na-edepụta mmetụta locomotor nke ọgwụ ọjọọ eme ihe dị ka ihe na-adịghị mma na nkwado ha. Mmetụta locomotor dị ukwuu bụ ihe ngosi bara uru nke mmetụta ọgwụ, na a na-ejikwa uche mee ihe dị ka ihe mgbakwunye maka nkwado. Otú ọ dị, ntugharị na nkwado na-agụnye usoro na-agafe agafe mana enweghị otu (Di Chiara 1995; Robinson na Berridge 2008; Vezina na Leyton 2009).

Na mgbakwunye na mkpa dị iche iche na SUD mmadụ, ụdị ndị a dịgasị iche na usoro mmepe nke SUD nke ha na-eṅomi. Ụdị nchịkwa onwe onye ma mmalite na njedebe nke ọrịa ahụ. CPP, ịkpọasị ebe oyiri (CPA), ịkpọasị uto nwere ọnọdụ (CTA), na nnukwu mmetụta locomotor ihe nlereanya ịṅụ ọgwụ n'oge, ụdị mmetụta uche nke oriri ugboro ugboro, na nkwụsịtụ ụdị iji ogologo oge na nwara abstinence. Lee Fig. 2.

Na nyocha a, anyị ga-achịkọta nsonaazụ sitere na ụdị anụmanụ nke enyochala mmetụta nke afọ mmalite nke ikpughe ọgwụ na-eto eto vs. Ntụle a dị oke mkpa: ọtụtụ ọmụmụ enyochala mmetụta na ndị nọ n'afọ iri na ụma ma ọ bụ na ndị okenye bụ ndị a na-ebu ụzọ kpughee dị ka ndị nọ n'afọ iri na ụma, mana ọmụmụ ihe dị otú ahụ anaghị anwale maka afọ kpọmkwem nke nchoputa. Nyocha ahụ lekwasịrị anya na nicotine, ethanol, wii wii, na psychostimulants, ebe enwere akwụkwọ dị ịrịba ama na-atụnyere mmetụta ọgwụ ndị a na-eto eto na ndị okenye. N'ụzọ dị mwute, enwere naanị ọmụmụ ole na ole na-enyocha ọgwụ ọjọọ na ndị nọ n'afọ iri na ụma (dịka ọmụmaatụ, lee Zhang et al. 2008). Ihe ndepụta nke nyochaa ga-agbaso ụzọ site na iji mbụ site na ịṅụ ọgwụ ọjọọ. Anyị ga-amalite site n'inyocha mmetụta nke otu nchịkwa ọgwụ ma ọ bụ ole na ole nke enyochala mmetụta na-akwụghachi ụgwọ, mgbagha, na locomotor. Anyị ga-atụlekwa mmetụta nke ịṅụ afọ ofufo dị ogologo oge site na nchịkwa ọnụ na n'ime eriri afọ. N'ikpeazụ, anyị ga-atụle ihe akaebe sitere na ọmụmụ mwepu nke na-egosipụta nsonaazụ nwere ike ịdị na mbọ ị kwụsị.

N'ozuzu, nsonaazụ a nwetara site na ụdị òké na-atụ aro na:

  1. Ndị nọ n'afọ iri na ụma na-ahụta ọgwụ ụfọdụ na-eri ahụ karịa ndị okenye
  2. Òké ndị nọ n'afọ iri na ụma na-adịkarị obere ka ha na-egosipụta mmetụta ọjọọ nke ọgwụ ọjọọ
  3. Oke ndị nọ n'afọ iri na ụma nwere ike inye onwe ha ọgwụ dị elu nke ụfọdụ ọgwụ ọjọọ n'okpuru ọnọdụ ụfọdụ
  4. Òké ndị nọ n'afọ iri na ụma na-enwekarị mmetụta mwepu dị obere

Nkwubi okwu ndị a, nke anyị ga-enye ihe akaebe dị n'okpuru ebe a, na-atụ aro na ọkwa mmepe nke oge ntorobịa n'onwe ya nwere ike ịbawanye ịṅụ ọgwụ ike n'oge n'ihi na ọgwụ ndị na-eri ahụ na-edozi ahụ na-akwụghachi ụgwọ ma na-adịghị anabata ya. Otú ọ dị, ọmụmụ ihe ndị a adịghị enye nkwado ọ bụla na ọganihu na-eme ihe ike na-eme ka ọ bụrụ na ịṅụ ọgwụ ọjọọ na-amalite n'oge uto: emebeghị ọmụmụ ihe dị egwu.

Nyocha a ga-amalite site na nkọwa nke mmepe ntorobịa na òké ma e jiri ya tụnyere ụmụ mmadụ. Anyị ga-enyochakwa nsonaazụ sitere na nyocha nke ejirila ụdị ọ bụla atụnyere mkpughe nwata na okenye.

Ụmụ òké ndị na-eto eto dị ka ihe nlereanya nke ụmụ mmadụ nọ n'afọ iri na ụma

Anyị lekwasịrị anya n'ụdị òké nke omume metụtara riri ahụ n'ihi nnukwu data e bipụtara site na iji ụdị ndị a yana ịdị mfe dị n'iji atụnyere nwa na-eto eto na oke òké. Ọ bụ ezie na ụdị primate ga-abụ ezigbo ihe ọmụma, anyị hụrụ naanị otu ọmụmụ na-atụnyere mmetụta ọgwụ na-eto eto na ndị okenye primates (Schwandt et al. 2007). Dabere na data a na-enyocha nke ukwuu n'ebe ndị ọzọ (2000 na-ekwu okwu), anyị ga-atụle afọ nke 28-42 ụbọchị dị ka "oge uto" na òké. Site na usoro ntozu oke nke hormonal, anụ ahụ, na mmekọrịta mmadụ na ibe ya, usoro mmepe a dabara na afọ 12-18 n'ime mmadụ (afọ XNUMX-XNUMX).2000 na-ekwu okwu). Ọ dị oke mkpa ikwu na anụmanụ anaghị adị otu n'ime oge a. N'ezie, ụfọdụ usoro omume a tụlere n'okpuru ebe a dị iche n'ụzọ pụtara ìhè n'etiti òké ndị dị afọ 28 na 42, dịka adịghị ike riri ahụ si dị iche n'etiti ụmụ mmadụ dị afọ 12 na 18.

Ihe akaebe na-eto eto na-egosi na ụmụ mmadụ na ụmụ oke na-eto eto na-enweta ọtụtụ mgbanwe nhazi na arụ ọrụ na ụbụrụ ka ha na-eto eto. Dịka ọmụmaatụ, innervation nke ụbụrụ ụbụrụ dopamine ka na-eto eto na mmadụ abụọ (Seeman et al. 1987) na òké. Dopamine D1 na D2 ọkwa nnabata ruru ọnụ ọgụgụ kasị elu wee daa karịa oge uto (Gelbard et al. 1989; Teicher et al. 1995; Andersen na Teicher 2000). Na mgbakwunye, njikọ dị n'etiti amygdala na prefrontal cortex tozuru oke n'oge usoro a, dị ka egosipụtara site na nyocha microscopy na rodents.Cunningham et al. 2002, 2008) na ọmụmụ ihe gbasara resonance magnet na-arụ ọrụ n'ime mmadụ (Ernst et al. 2005; Eshel et al. 2007). Ya mere, mmepe ụbụrụ n'oge uto nwere ike yie n'ọtụtụ ụzọ n'etiti mmadụ na òké.

Mkpughe ọgwụ mbụ

Dị ka egosiri na Fig. 2, nzọụkwụ mbụ dị mkpa maka mmepe nke ịdabere na ọgwụ ọjọọ bụ ịṅụ ọgwụ. Àgwà nke ahụmahụ ọgwụ mbụ dị oké mkpa n'ịchọpụta ihe oriri n'ọdịnihu: maka ọtụtụ ọgwụ ọjọọ, ndị na-anụ ụtọ ahụmahụ mbụ ha nwere ike ịmeghachi ịṅụ ọgwụ ọjọọ (Haertzen et al. 1983). Ọgwụ ọjọọ na-arụ ọrụ ma na-akwụghachi ụgwọ ma na-ewe iwe (Amamihe et al. 1976), na nguzozi n'etiti ahụmahụ ndị a n'oge iji ọgwụ mbụ na-ekpebi ma mmadụ ọ ga-emeghachi ịṅụ ọgwụ n'ọdịnihu. N'ime òké, dị ka akọwara n'elu, a na-eji CPP, CPA, na CTA chọpụta ụgwọ ọrụ mbụ na ịkpọasị ma nye nghọta bara uru banyere ịdabere na afọ nke mmetụta dị otú ahụ.

Mmetụta na-akwụghachi ụgwọ

Ụfọdụ ekwuola na iji ọgwụ na-ebuli elu n'oge uto na-eme n'ihi na ndị na-eto eto na-enweta ọgwụ na-akwụghachi ụgwọ karịa (Vastola et al. 2002; Belluzzi et al. 2004; Badanich et al. 2006; O'Dell 2009). Enwere ụfọdụ ihe àmà na-egosi na ndị na-eto eto na ndị òké na-enweta ụgwọ ọrụ ka ukwuu site na ihe ndị sitere n'okike (Vaidya et al. 2004), nke nwere ike ime ka ihe ndị na-eri ahụ riri ahụ. Ọ bụrụ otu a, mgbe ahụ, ndị na-eto eto nwere ike na-aṅụ ọgwụ ugboro ugboro ma ọ bụ n'ogo dị elu, nke nwere ike ịkọwa ọganihu ngwa ngwa na ịdabere na ndị nọ n'afọ iri na ụma. Ihe akaebe iji lebara ajụjụ a dị oke mkpa agwakọta ma na-egosi na ndị nọ n'afọ iri na ụma na-enwekarị mmetụta na-akwụghachi ụgwọ nke ma ọ dịkarịa ala ọgwụ ụfọdụ.

Nicotine na-akwụghachi ụgwọ mgbe niile na ndị nọ n'afọ iri na ụma (Vastola et al. 2002; Belluzzi et al. 2004; Torrella et al. 2004; Shram et al. 2006; Kota et al. 2007; Brielmaier et al. 2007; Torres et al. 2008). Otu nnyocha gosiri na ethanol na-akwụghachi ụgwọ karịa na ndị nọ n'afọ iri na ụma (Philpot et al. 2003). Ọmụmụ nke ụgwọ ọrụ psychostimulant (cocaine, amphetamine, methamphetamine) na-agwakọta nke ọma mana ọ na-egosipụta mmetụta uche dị ukwuu na ndị nọ n'afọ iri na ụma, ọkachasị na obere doses (Badanich et al. 2006; Brenhouse na Andersen 2008; Brenhouse et al. 2008; Zakharova et al. 2008 a, b; ma lee Aberg et al. 2007; Adriani na Laviola 2003; Balda et al. 2006; Campbell et al. 2000; Schramm-Sapyta et al. 2004; Torres et al. 2008). Tetrahydrocannabinol (THC) anaghị ewepụta mmasị n'ọnọdụ siri ike na òké. Lee Isiokwu 1. N'ozuzu, ọmụmụ mmasị n'ọnọdụ ọnọdụ ọnọdụ na-egosi na ndị nọ n'afọ iri na ụma nwere ike ịhụ ọtụtụ ọgwụ ọjọọ na-akwụghachi ụgwọ karịa, karịsịa na usoro nkwụsị. A na-achọkarị ntụnyere usoro n'usoro n'akwụkwọ.

Isiokwu 1

Ndabere afọ nke ụgwọ ọrụ, ịkpọasị, nchịkwa onwe onye, ​​na mwepụ

Mmetụta ọjọọ

Enwere nkwenye doro anya na akwụkwọ ndị ahụ na ụmụ oke ndị na-eto eto anaghị anabata mmetụta ọjọọ nke ọgwụ ọ bụla a na-emegbu emegbu nke nwalere. Nke a bụ eziokwu maka nicotine (Wilmouth na Spear 2004; Shram et al. 2006), ethanol (Philpot et al. 2003; na Schramm-Sapyta et al., ihe ndị a na-ebipụtabeghị), THC (Schramm-Sapyta et al. 2007; Quinn et al. 2008), amphetamine (Infurna na ube 1979), na cocaine (Schramm-Sapyta et al. 2006); lee Isiokwu 1. N'ezie, ịkpọasị ụtọ ụtọ maka ihe anaghị eri ahụ, lithium chloride, na-ebelatakwa na oke ndị na-eto eto (Schramm-Sapyta et al. 2006), na-atụ aro na enweghị mmasị na mmetụta ndị na-adịghị mma nwere ike ịbụ akụkụ a na-ahụkarị nke oge uto. Na mgbakwunye na ule ndị a kpọmkwem nke mmetụta mgbagha, mmetụta ndị ọzọ nwere ike igbochi ọtụtụ ọgwụ ọjọọ na-ebelata na ndị nọ n'afọ iri na ụma ma e jiri ya tụnyere ndị okenye. Ọmụmaatụ, nicotine bụ anxiolytic na ụmụ oke oke mana anxiogenic na ndị okenye (Elliott et al. 2004). Oke ndị nọ n'afọ iri na ụma anaghị enwe mmetụta nke ukwuu ethanol mmetụta mgbochi mmadụ (Varlinskaya na ube 2004b), nchekasị na-akpata (Doremus et al. 2003; Varlinskaya na ube 2004), na mmetụta ịhịa aka n'ahụ (Obere et al. 1996; Swartzwelder et al. 1998). Mmetụta anxiogenic na ogwuura nke THC na-ebelatakwa n'oge uto (Schramm-Sapyta et al. 2007). N'ozuzu, ma ọ bụ oke mmetụta ọjọọ ma ọ bụ ikike ịmụta site na ahụmahụ na-adịghị mma na-ebelata n'ụwa nile n'oge uto, nke nwere ike ime ka ịṅụ ọgwụ ọjọọ dị elu ma ọ bụ ugboro ugboro na-eto eto ma e jiri ya tụnyere ndị okenye.

Mmetụta locomotor

Dị ka akọwara n'elu, enwere ike iji mmetụta locomotor nke ọgwụ ọjọọ eme ihe iji nyochaa mmetụta ndị metụtara afọ na mmetụta ọgwụ ọjọọ na neuroplasticity nke ọgwụ na-akpata. Ọnụ ọgụgụ dị ukwuu nke ọmụmụ ihe e bipụtara enyochala ihe ndị a, nke anyị ga-achịkọta ugbu a.

Nnukwu locomotion

Mmetụta locomotor siri ike nke ọgwụ eji eme ihe na-agbanwe nke ukwuu yana afọ, ọgwụ na ụlọ nyocha akọwapụtara. Nicotine nwere ike ịbawanye ma ọ bụ ibelata locomotion. Enwere arụmụka na akwụkwọ akụkọ maka ihe na-ekpebi ntụzịaka mmetụta locomotor nicotine (Jerome na Sanberg n'afọ 1987), n'ihi ya, ọ bụghị ihe ijuanya na a na-arụkwa ọrụ nke afọ. Ọmụmụ ihe abụọ hụrụ mmụba na-abawanye na ndị nọ n'afọ iri na ụma mana mbelata locomotion na ndị okenye (Vastola et al. 2002; Cao et al. 2007a). Nnyocha ọzọ chọpụtara na mbelata locomotion na ndị okenye na ndị nọ n'afọ iri na ụma (ụbọchị 45) mana enweghị mmetụta na ndị na-eto eto (ụbọchị 28; Belluzzi et al. 2004). Nnyocha abụọ chọpụtara na mbelata locomotion na afọ abụọ, yana mmetụta dị ukwuu na ndị nọ n'afọ iri na ụma (Lopez et al. 2003; Rezvani na Levin 2004). Ọmụmụ ihe anọ ndị ọzọ achọpụtala mmụba nke locomotion na afọ abụọ ahụ ruo n'ókè nha anya (Faraday et al. 2003; Schochet et al. 2004; Collins et al. 2004; Cruz et al. 2005). Otu nnyocha kwuru na nnukwu ọnọdụ n'oge ntorobịa (Collins na Izenwasser 2004). E nwetara nsonaazụ ndị a na-emegiderịta onwe ha n'agbanyeghị ụdị ọgwụ nicotine yiri nke ahụ n'ofe ọmụmụ ahụ. Akụkọ maka ethanol N'otu aka ahụ enweghị njedebe n'agbanyeghị ụdị doses enyochara n'ofe ọmụmụ. Otu nnyocha kwuru na mbelata moto ka ukwuu na oke oke (Lopez et al. 2003), ebe ọmụmụ ọzọ kwuru na mbelata locomotor hà nhata na afọ abụọ (Rezvani na Levin 2004). Nnyocha ọzọ kọrọ na ịgbalite locomotor na afọ abụọ ahụ, na-enwe mmetụta dị ukwuu na ndị nọ n'afọ iri na ụma (Stevenson et al. 2008). Na primates, mmetụta ataxic ethanol na-ebelata ka ọ na-eto, ebe mmebi nke ike ịwụ elu na mkpali moto na-abawanye na afọ n'oge uto (Schwandt et al. 2007). Amphetamine na cocaine ha abụọ na-abawanye locomotion. Ndị na-eto eto na-enwekarị hyporesponsive (n'ihe gbasara ma ambulatory na stereotypic omume) amphetamine na methamphetamine tụnyere ndị okenye (Lanier na Isaacson 1977; Bolanos et al. 1998; Laviola et al. 1999; Zombeck et al. 2009). Otú ọ dị, na nzaghachi cocaine, ọmụmụ atụnyere oke na nke atọ ma ọ bụ nke anọ n'izu nke ndụ (preadolescence na mmalite oge uto) ka oke na ise ma ọ bụ nke isii izu nke ndụ (midadolescence na mbubreyo uto) n'ozuzu na-akọ ukwuu ambulation na stereotypy na mmalite na-eto eto (Ube na brik 1979; Snyder et al. 1998; Caster et al. 2005; Parylak et al. 2008). Ọtụtụ ndị nchọpụta na-ahụ na ọ dịghị mgbanwe site n'oge uto ruo n'ịbụ okenye (Laviola et al. 1995; Maldonado na Kirstein 2005; Caster et al. 2005; Parylak et al. 2008), ebe ndị ọzọ achọpụtala ntakịrị ihe na-eme ka ambulation na stereotypy dị na ndị nọ n'afọ iri na ụma tụnyere ndị okenye (Laviola et al. 1995; Frantz et al. 2007), karịsịa na ụmụ nwanyị (Laviola et al. 1995). Morphine na-akpali ịgbalite locomotor dị ukwuu na ndị nọ n'afọ iri na ụma karịa ndị okenye (Spear et al. 1982). N'ozuzu, enweghị nkwenye na akwụkwọ akụkọ gbasara mmekọrịta nke afọ na nnukwu mmetụta locomotor nke ọgwụ ọjọọ.

Mmetụta uche

Ọtụtụ akụkọ enyochala mmetụta afọ na mmetụta locomotor na psychostimulants. Mmetụta na-agbanwe nke ọma na mmepe. Ọ na-adịghị na mmalite oge ọhụrụ na-apụta dị ka anụmanụ tozuru okè (Kolta et al. 1990; McDougall et al. 1994; Ujike et al. 1995). Maka cocaine, amphetamine, methamphetamine, na phencyclidine, ọkwa ọgụgụ isi nke a na-achọpụta na-apụta ìhè n'oge mmepe nwa ọhụrụ na mmalite oge uto, n'etiti izu nke atọ na nke anọ n'izu ọmụmụ.Tirelli et al. 2003). Ozugbo a chọpụtara nghọta, a na-arụrịta ụka banyere ma ọ na-agbanwe n'oge uto.

n'ihi na nicotine, ụfọdụ ndị nnwale achọpụtala mbelata uche na ndị nọ n'afọ iri na ụma (Schochet et al. 2004; Collins et al. 2004; Collins na Izenwasser 2004; Cruz et al. 2005); ụfọdụ achọpụtala mmetụta dị ukwuu na ndị nọ n'afọ iri na ụma (Belluzzi et al. 2004; Adriani et al. 2006); na ndị ọzọ ahụbeghị mmetụta afọ ọ bụla (Faraday et al. 2003), karịsịa na ụmụ nwanyị (Collins et al. 2004; Collins na Izenwasser 2004). Ya mere, akwụkwọ ndị ahụ na-egosi na nicotine adịghị emetụ n'ahụ na ndị nọ n'afọ iri na ụma karịa ndị okenye. Otu ọmụmụ enyochala mmetụta uche na nzaghachi ethanol wee chọpụta na ụmụ oke ndị na-eto eto anaghị enwe mmetụta nke ukwuu (Stevenson et al. 2008).

n'ihi na amphetamine, akụkọ abụọ kwubiri na ndị nọ n'afọ iri na ụma na-amata ihe karịa ndị okenye (Adriani et al. 1998; Laviola et al. 2001). Maka cocaine, ọmụmụ atọ egosila mbelata uche na oke ndị nọ n'afọ iri na ụma (Laviola et al. 1995; Collins na Izenwasser 2002; Frantz et al. 2007). Ọmụmụ ihe ndị ọzọ akọpụtala mmetụta dị ukwuu na oke ndị na-eto eto (Caster et al. 2005, 2007na ụmụ oke (Schramm-Sapyta et al. 2004). Abụọ n'ime ọmụmụ ihe ndị gosipụtara mmetụta cocaine ka ukwuu na ndị nọ n'afọ iri na ụma (Caster et al. 2005, 2007) jiri nyocha ngwa ngwa nke uche (n'ime ọnụọgụ ọnụọgụ ugboro ugboro na awa 24 mgbe otu nnukwu dose gasịrị). Ya mere, ndị nọ n'afọ iri na ụma nwere ike ịmalite inwe mmetụta ngwa ngwa.

Plasticity omume na ọgwụ ndị a ga-ekwe omume n'ụzọ doro anya na ma ndị nọ n'afọ iri na ụma ma ndị toro eto, mana oke ịdị n'ime afọ abụọ ahụ nwere ike ịdabere na ọgwụ, dose, na oge ikpughe. N'ozuzu, ịdị arọ nke ihe àmà na-egosi na ndị nọ n'afọ iri na ụma adịghị emerụ ahụ karịa ndị okenye na mgbanwe neuroplastic na sekit omume nke locomotor na nzaghachi na nkwụsịtụ ugboro ugboro na ọgwụ ndị a.

Ikpughe ọgwụ ogologo oge

Nlekọta onwe onye

SA nke psychostimulants, nicotine, na ethanol nwere ike ịbụ ezigbo ihe atụ nke ịṅụ ọgwụ ọjọọ mmadụ na ịga n'ihu na ịdabere na ya (THC anaghị adabere n'onwe ya site na òké). Ọtụtụ n'ime nnyocha e bipụtara ruo taa lekwasịrị anya na nnweta mbụ nke SA, bụ nke na-egosi mmetụta ike nke ọgwụ ndị a na-enyocha. Ọmụmụ ihe ole na ole enyochala SA ogologo oge na permutations, dị ka ọganihu na-aga n'ihu, LGA, mkpochapụ, na ntinyeghachi, bụ nke kachasị ihe ọmụma banyere ọganihu na ịdabere na ya.

Ugboro nke nicotine nchịkwa onwe onye nwere ike ịdị ukwuu karịa n'oge uto, n'agbanyeghị na nsonaazụ ya dịgasị iche. Levin et al. (2003, 2007) egosila na oke ndị nọ n'afọ iri na ụma na-ewere nicotine karịa (ọtụtụ infusions kwa elekere) n'okpuru usoro nkwado na-aga n'ihu (otu infusion kwa lever press) karịa oke oke. Mmetụta a na-adabere na afọ nke ọzụzụ mbụ n'ime oge uto. Nkezi ọnụ ọgụgụ infusions kwa nnọkọ na-ebelata site n'ịbawanye afọ mmalite n'ime afọ ndị ntorobịa na ruo n'oge ntozu. N'ime ọtụtụ izu nke nchịkwa onwe onye ka ụmụ anụmanụ na-etolite, esemokwu mmekọahụ na-apụta. Oke mmalite mmalite nke nwoke na-egosi ọnụ ọgụgụ dị elu nke nchịkwa onwe nke nicotine na mbụ mana ibelata oriri ha na ọkwa mmalite okenye ka ha na-etolite (Levin et al. 2007). N'ụzọ dị iche, oke ụmụ nwanyị na-eto eto na-egosi ọkwa dị elu nke nchịkwa onwe nke nicotine nke a na-edobe ka ha na-etolite.Levin et al. 2003). Otu ọzọ gosikwara na oke ụmụ nwanyị na-eto eto na-enweta nchịkwa onwe nke nicotine ngwa ngwa karịa ụmụ nwanyị toro eto (Chen et al. 2007). N'ụzọ dị iche, Shram et al. egosila na n'ogo nzaghachi dị elu (mpịakọta lever ise kwa infusion) ụmụ oke oke na-enye onwe ha obere nicotine karịa ndị okenye (Shram et al. 2007 b). Oke ndị nọ n'afọ iri na ụma n'ọmụmụ ihe a gosikwara obere mkpali ịchọ ọgwụ ahụ n'okpuru usoro nhazi usoro na-aga n'ihu ma na-enweghi ike ikpochapụ mgbe edochiri saline maka nicotine. N'ịchịkọta ọnụ, ọmụmụ ihe ndị a na-egosi na ndị nọ n'afọ iri na ụma nwere ike na-etinye aka n'ọtụtụ dị elu nke oriri mbụ mana o yikarịrị ka ha ga-egosipụta omume ịdabere na nicotine. Lee Isiokwu 1.

n'ihi na ethanol, enwere ọtụtụ ọmụmụ na-atụnyere ịṅụ mmanya afọ ofufo na ndị nọ n'afọ iri na ụma vs. òké ndị toro eto. Enwere ụfọdụ ihe akaebe na oke ndị na-eto eto na-eri ọtụtụ ethanol (Doremus et al. 2005; Brunell na Spear 2005; Vetter et al. 2007), mana nke a apụtaghị na ọmụmụ ihe niile (Siegmund et al. 2005; Bell et al. 2006; Truxell et al. 2007) ma ọ bụ na oke (Tambour et al. 2008). Nnyocha abụọ nyochara mmetụta nke afọ na nlọghachi azụ wee chọpụta na ndị na-aṅụ mmanya na-eto eto na-enwekarị ike ịmaliteghachi ịṅụ mmanya na-akpata nrụgide mgbe a na-enyocha ya n'oge okenye mgbe ịṅụchara mmanya ogologo oge (Siegmund et al. 2005; Fullgrabe et al. 2007), dabere na nrụgide nke ejiri (Siegmund et al. 2005). N'adịghị ka nicotine, ethanol nwere ike ịkpalite omume ndị ọzọ dabere na oke ndị nọ n'afọ iri na ụma, n'agbanyeghị ọkwa oriri. Lee Isiokwu 1.

Ọtụtụ ọmụmụ achọpụtabeghị ọdịiche dị n'etiti ndị ntorobịa na ndị okenye na ọkwa nke cocaine nchịkwa onwe (Leslie et al. 2004; Belluzzi et al. 2005; Kantak et al. 2007; Kerstetter na Kantak 2007; Frantz et al. 2007). Agbanyeghị, otu nnyocha gosiri na ndịiche afọ nwere ike dabere na mkpụrụ ndụ ihe nketa. Perry et al. (2007) chọpụtara na oke ndị nọ n'afọ iri na ụma na-azụ maka oriri saccharin dị ala nwetara nchịkwa onwe ha ngwa ngwa karịa ndị okenye bred maka obere saccharin. N'ụzọ dị iche, ndị nọ n'afọ iri na ụma na ndị toro eto na-azụ maka nnukwu saccharin na-eri cocaine na-ejide onwe ya na nha nha. N'oge a, ihe akaebe na-egosi na cocaine anaghị ejide onwe ya na ọkwa dị elu site n'aka ndị nọ n'afọ iri na ụma karịa ndị okenye ma na ọdịiche nke mkpụrụ ndụ ihe nketa nwere ike imekọrịta na afọ iji chọpụta ọkwa nchịkwa nke cocaine. Lee Isiokwu 1. Ọmụmụ izizi sitere na ụlọ nyocha anyị na-egosi na oke na-aga n'ihu, mkpochapụ, na iweghachite cocaine adịghị iche n'etiti oke ndị na-eto eto na ndị okenye.

Akụkọ ndị a na-emegiderịta onwe ha banyere nchịkwa onwe nke cocaine, nicotine, na ethanol na-atụ aro na ọkwa nke iji afọ ofufo aṅụ ọgwụ ndị a anaghị adabere na afọ. Dabere na ọgwụ a na-enyocha, ndị nọ n'afọ iri na ụma nwere ike ịbụ karịa (ethanol) ma ọ bụ obere (nicotine, cocaine) nwere ike ịdaba na omume ịdabere. Ọmụmụ ihe zuru ezu nke ịdabere na omume nchịkwa onwe onye bụ isi ihe iji ghọta ma ndị na-eto eto na-aga n'ihu ngwa ngwa na usoro mmanye nke ịṅụ ọgwụ. Ọrụ ga-eme n'ọdịnihu kwesịrị itinyekwu ike na oke na-aga n'ihu, LgA, iguzogide mkpochapụ, yana ntaramahụhụ ma ọ bụ ịmanye ọgwụ ịchọ. Usoro ndị dị otú ahụ nwere ike ikpughe ma ndị nọ n'afọ iri na ụma hà na-enwekarị mmasị n'omume riri ahụ, dị iche na mmasị ha nwere maka ịṅụ ọgwụ ọjọọ.

ndọrọ ego

Mwepụ bụ mkpokọta mgbanwe omume na physiological nke na-eme mgbe ọ kwụsịrị ịṅụ ọtụtụ ọgwụ ọjọọ. Dị ka akọwara n'elu, e ji mara ya site na physiological (afọ ọsịsa, ọdịdọ, wdg) na nzaghachi nke uche (nchegbu, dysphoria, agụụ, wdg) nke nwere ike ịgụnye ma nzaghachi ọgwụ kpọmkwem na omume nke nwere ike igosi mmeghachi omume na-adịghị mma "isi" (isi).Koob 2009). Mmetụta nke ịwepụ na ịṅụ ọgwụ ọjọọ na-esote yana ọganihu na SUDs dịgasị iche na ogologo oge ịṅụ ọgwụ na ahụmahụ nke onye ọrụ. Mgbe otu ihe omume nke ịṅụ ọgwụ ọjọọ gasịrị, mwepu nwere ike belata ma ọ bụ mụbaa ojiji n'ọdịnihu. Ọgba aghara ọjọọ na-eme ka ụfọdụ ndị zere mmanya na-aba n'anya nwa oge (Prat et al. 2008), ma ndị mmadụ na-enwekarị mmanya na-egbu egbu ma na-aṅụ ihe ọṅụṅụ iji belata mgbaàmà nkwụsịtụ na-enwekarị ọganihu na ịṅụbiga mmanya ókè (Earleywine 1993, b). Mgbe ịṅụchara ọgwụ ọjọọ dị iche iche ugboro ugboro, mgbaàmà dị ka mmetụta ọjọọ, ụgwọ ọrụ dị elu, na agụụ na-anọgide na-aṅụ ọgwụ ọjọọ (Koob 1996; Koob na Le Moal 1997). Ọtụtụ nchọpụta na-egosi na ndị na-eto eto na-enwe mmetụta mgbakasị mwepu nke nicotine na ethanol ma e jiri ya tụnyere ndị okenye, dị ka a chịkọtara n'okpuru. Akwụsịla na cocaine, amphetamine, na THC atụnyebeghị na ndị nọ n'afọ iri na ụma vs. òké ndị toro eto.

Ọtụtụ mgbaàmà nke nicotine a na-ebelata mwepu na oke ndị nọ n'afọ iri na ụma, dị ka ịkpọasị n'ọnọdụ ọnọdụ nchụpụ metụtara (O'Dell et al. 2007 b), omume dị ka nchegbu (Wilmouth na Spear 2006; ma lee Kota et al. 2007), na mbelata ụgwọ ọrụ (O'Dell et al. 2006). Ndị nọ n'afọ iri na ụma na-egosipụtakwa ntakịrị akara somatic nke mwepụ nicotine (O'Dell et al. 2006; Kota et al. 2007). Lee Isiokwu 1. Ọtụtụ ethanol A na-ebelatakwa akara mgbake n'oge uto ma e jiri ya tụnyere òké toro eto. Ndị a gụnyere mmachi mmekọrịta mmadụ na-ebute nchụpụ (Varlinskaya na ube 2004, b), omume dị ka nchegbu (Doremus et al. 2003), na ọdịdọ (Acheson et al. 1999). N'ụzọ dị iche, opekata mpe abụọ nke mwepụta, cortical electroencephalogram ọrụ (Slawecki et al. 2006hypothermia (Ristuccia na ube 2005) na-apụtakarị nke ọma na ndị nọ n'afọ iri na ụma ma ọ bụrụ na a na-ebute ethanol site na inhalation vepor. Lee Isiokwu 1.

Ọ na-esiri ike ịghọta site na data ndị a ka mmetụta ọ ga-esi gbakọta na ịṅụ ọgwụ ọjọọ mmadụ. A ga-atụ anya na enweghị akara ngosi nkwụghachi azụ ka ogologo oge ga-eme ka ọ daa n'ihu na iji mmanye. N'ụzọ dị iche, enweghị mgbaama mwepu ka emechara nnwale mbụ nwere ike ịkpali ịba ụba nke ojiji n'ihi echiche na ọgwụ adịghị emerụ ahụ.

Mmetụta iche echiche

Enwere ọtụtụ mmetụta ọgwụ ike nwere ike inwe mmekọrịta siri ike na ikike mmetọ ha nke a na-enyochabeghị nke ọma. Dịka ọmụmaatụ, ndị riri ahụ maara na ha nwere nkwarụ ọgụgụ isi nke na-emetụta ọganihu ha na ọgwụgwọ ọgwụ (Volkow na Fowler 2000; Kalivas na Volkow 2005; Moghaddam na Homayoun 2008). O dochaghị anya ugbu a ma nkwarụ ọgụgụ isi na-ebute ụzọ ma ọ bụ na-esite na ịṅụ ọgwụ ọjọọ. Tụkwasị na nke ahụ, data ụlọ ọgwụ na-egosi na ọrụ nchịkwa nwere ike imebi ma ndị na-eto eto na ndị na-aṅụ ọgwụ ọjọọ, na-eme ka ọdịdị nke njikọ dị n'etiti abụọ ahụ dịkwuo mma (Berslọ ndị et al. 2003; Volkow et al. 2007; Beveridge et al. 2008; Pattij et al. 2008). A nwalere ụfọdụ n'ime mmetụta ndị a na ndị nọ n'afọ iri na ụma na oke oke ndị okenye, nke anyị ga-achịkọta ugbu a.

Mmụta na ebe nchekwa

Ọgwụ ọjọọ eme ihe nwere ike imetụta mmụta na ebe nchekwa nke ọma ma nwee ike ịkpata mmetụta na-adịgide adịgide nke pụtara na steeti enweghị ọgwụ. Mmebi a dị mkpa maka ọtụtụ ihe nwere ike imetụta ndị nọ n'afọ iri na ụma na ndị okenye. Nke mbụ, ebe ndị mmadụ nọ n'okpuru mmetụta nke ịda mbà n'obi dị ka mmanya na THC, oge mmeghachi omume ha na ikpe nwere ike imebi (DSM-IV 1994), nke nwere ike itinye onye ahụ na ndị ọzọ nọ n'akụkụ ha n'ihe ize ndụ. N'ụzọ dị iche, ihe na-akpali akpali dị ka nicotine na amphetamine nwere ike ịkwalite ncheta nke ukwuu (Martinez et al. 1980; Provost na Woodward 1991; Levin 1992; Soeten et al. 1993, 1995; Le Houezec et al. 1994; Lee na Ma 1995; Levin na Simon 1998). Mgbe ejiri ogologo oge mee ihe, ọgwụ ndị na-eri ahụ nwere ike ibelata ikike ọgụgụ isi, na-eme ka mgbake na ọgwụgwọ na-eme ka ọ sie ike karị (ọ bụ ezie na ọ ga-ekwe omume na ndị nwere ikike nghọta na-adịbu ala nwere ike ịbụ ihe siri ike ịgwọ; Aharonovich et al. 2006; Teichner et al. 2001). Ọtụtụ nnyocha e mere na òké atụnyere ndị nọ n'afọ iri na ụma na ndị toro eto na ọrụ ọgụgụ isi, ma nke ọma ma mgbe ogologo oge ekpughere na abstinence. N'ezie, ọgwụ ndị na-akụda mmụọ yiri ka ọ na-emerụ ndị nọ n'afọ iri na ụma karịa ndị okenye. Mgbe ikpughe ogologo oge, mmetụta nke afọ mmalite bụ ọgwụ na ọrụ kpọmkwem.

Nnukwu ịṅụbiga mmanya ókè ethanol or THC na-emebi mmụta gbasara ohere na Morris Water Maze ruo n'ókè dị ukwuu na ndị nọ n'afọ iri na ụma (Acheson et al. 1998, 2001; Cha et al. 2006, 2007; Markwiese et al. 1998; Obernier et al. 2002; Sircar na Sircar 2005; White et al. 2000; White na Swartzwelder 2005; ma lee Rajendran na Spear 2004). Ndị nọ n'afọ iri na ụma na-enwekwa nsogbu karịa ndị okenye site na ethanol na ịkpa oke isi na-akpali agụụ mmekọahụ (Land na ube 2004). Ọdịda nke ogologo oge dịkwa ka ọ na-akawanye njọ mgbe mmalite mmalite nke ndị nọ n'afọ iri na ụma karịa ikpughe okenye. Otu nnyocha gosiri na nkwarụ kpatara ya ethanol nọgidere na ndị nọ n'afọ iri na ụma mana ọ bụghị ndị okenye ruo ụbọchị 25 na-esote nkwụsị ethanol (Sircar na Sircar 2005). N'otu aka ahụ, ịrụ ọrụ na njirimara ihe na-emebi emebi karịa mgbe nwa okorobia kpughepụrụ ya THC (Quinn et al. 2008na sịntetik cannabinoids (Schneider na Koch 2003; O'Shea et al. 2004) karịa ndị okenye preexposure. Enwere otu ọmụmụ ihe dị iche na-egosi na mmebi ahụ kpatara THC na mmụta gbasara ohere ịgbasa n'ime izu 4 nke abstinence na afọ abụọ (Cha et al. 2007).

A enyochala mmetụta ogologo oge nke ikpughe oge ntorobịa na nzaghachi nye ụfọdụ ndị na-eme ihe ike. Mgbe agbatịchara cocaine nchịkwa onwe ya na abstinence, mmụta dabere na amygdala na-emebi emebi ruo n'ókè dị nta na mmalite nwata karịa oke ndị okenye malitere (Kerstetter na Kantak 2007), na-atụ aro na enwere ike ichebe ndị nọ n'afọ iri na ụma site na mmetụta uche ogologo oge. Na a iche iche ọmụmụ, ochichi nke cocaine N'oge uto, ewepụtala mperi na mmụta Morris Water Maze nke tụgharịrị na abstinence cocaine ogologo oge.Santucci et al. 2004). Otú ọ dị, ọmụmụ ihe a ejighị mmetụta nke ikpughe ndị okenye tụnyere. N'ụzọ dị iche, neurotoxic doses nke methamphetamine mepụta obere mpe mpe mpe mana na-adịte aka na mmụta gbasara ohere na Morris Water Maze na Cincinnati Water Maze ma ọ bụrụ na enyere ya n'etiti ụbọchị 41 na 50 (n'oge uto). Nlekọta na ụbọchị 51-60 enweghị mmetụta (Vorhees et al. 2005).

Na nchịkọta, ọgwụ ndị na-akụda mmụọ ethanol na THC nke ọma na-emebi ụmụaka karịa ndị okenye. Nke a nwere ike imetụta ime mkpebi mgbe ndị ọrụ nọ n'okpuru mmetụta nke ọgwụ. Nnyocha nke nnukwu mmetụta nke stimulants na ikike ọgụgụ isi ga-abụ ihe ọmụma. Long-adịgide adịgide mmetụta yiri ka ọ bụ kpọmkwem ọgwụ: mmetụta mmanya na-adịgide adịgide, THC, na neurotoxic doses nke methamphetamine akọwara, n'agbanyeghị na enwere akụkọ na-emegiderịta onwe ya. Ọmụmụ ihe ndị a na-ewelite nchegbu na nkwarụ ọgụgụ isi na-adịte aka site na ikpughe ọgwụ ndị ntorobịa, karịsịa ndị na-akụda mmụọ, nwere ike ibuli adịghị ike maka iji ọgwụ eme ihe n'ọdịnihu.

Impulsivity na Executive ọrụ

A na-echekarị SUD dị ka ọdịda nke njikwa mkpali ma ọ bụ ọrụ nchịkwa: ndị riri ahụ anaghị achịkwa mkpali ịṅụ ọgwụ ọjọọ n'agbanyeghị nsonaazụ ọjọọ. Ha na-adakwa ime atụmatụ tupu ha emee mkpebi maka ọdịmma ha (Kalivas na Volkow 2005). A na-eche na mwepu nke nchịkwa nchịkwa na ahụ riri ahụ ga-esite na mbelata glutamatergic mbanye site na prefrontal cortex na nucleus accumbens na nzaghachi sitere na ụgwọ ọrụ eke na oke mbanye na nzaghachi na mkpali metụtara ọgwụ.Kalivas na Volkow 2005). A maara na ndị nọ n'afọ iri na ụma belatara ọrụ nke "usoro nlekọta," cortex prefrontal (Ernst et al. 2006), na ụmụ mmadụ nọ n'afọ iri na ụma nwere sekit sekit prefrontal na-eto eto (Lenroot na Giedd 2006). N'echiche a, ndị nọ n'afọ iri na ụma nwere ike ịnwe ọrụ nchịkwa nke erughi eru, ọbụlagodi na-enweghị ikpughe ọgwụ. THC egosiri na ọ na-emebi ọrụ ndị isi (Egerton et al. 2005, 2006) n'ọrụ dabere na cortex prefrontal (McAlonan na Brown 2003), mana ọ nweghị nnwale e bipụtara ruo taa enyochala ma mmetụta a ọ̀ bụ kpọmkwem afọ.

Impulsivity bụ echiche dị mgbagwoju anya, ọtụtụ ndị nchọpụta na-ekekwa ya n'ọtụtụ ngalaba (Afọ 1999). N'ime òké, a na-eji ụdị ọrụ atọ a na-emepụtakarị enweghị mmasị. Nke mbụ, usoro igbu oge na-achọ ka anụmanụ ahụ họrọ n'etiti obere onye na-akwado ngwa ngwa na nke buru ibu na-egbu oge. N'ụdị ndị dị otú ahụ, cocaine na amphetamine mụbaa nhọrọ mkpali (Paine et al. 2003; Helms et al. 2006; Roesch et al. 2007), na ụmụ oke na-agbago elu mmanya oriri na-egosipụtakarị impulsivity (Wilhelm na Mitchell 2008). Ndị na-eto eto na-enwe mmasị karị n'ọrụ ndị dị otú ahụ na mmalite (Adriani na Laviola 2003). Nicotine ikpughe n'oge uto adịghị emetụta arụmọrụ na ọrụ a mgbe a nwalere n'oge ntorobịa (Countette et al. 2009). Akụkụ ọzọ nke enweghị mmasị bụ nke a na-egosipụta site na ọrụ nke nọmba kwụ ọtọ (FCN) yana ọrụ Go/No-go. Ọrụ ndị a na-enyocha ikike igbochi nzaghachi na-ezighi ezi mgbe ị na-arụ ọrụ kwesịrị ekwesị. Ethanol na amphetamine mụbaa impulsivity na ọrụ FCN (Evenden na Ko 2005; Bardo et al. 2006). Cocaine anaghị emetụta omume na ọrụ Go/No-go (Paine et al. 2003). Ụmụ oke gbagoro elu mmanya oriri na-egosipụta nnukwu agụụ na ọrụ Go/No-go (Wilhelm et al. 2007). Ụdị mkpali nke atọ bụ nke a na-egosipụta na nkwado dị iche iche nke ọrụ nzaghachi dị ala (DRL). Ọ na-egosipụta ikike ichere tupu ịchọọ nkwado. Cocaine (Wenger na Wright 1990; Cheng et al. 2006), amphetamine (Wenger na Wright 1990), na ethanol (Popke et al. 2000; Arizzi et al. 2003) mụbaa impulsivity na ọrụ DRL. Mmetụta nke oge uto na nzaghachi nke ọgwụ ọjọọ na ọrụ ndị a niile bụ ebe dị oke egwu maka ọmụmụ ihe n'ọdịnihu, n'ihi na ọkwa mmepe n'onwe ya nwere ike ịbụ nnukwu adịghị ike na ngalaba a.

Ọrụ nke pharmacokinetics na usoro omume

Ọtụtụ ọgwụ pharmacokinetic nke ọgwụ eji eme ihe nwere ike itinye aka na mmepe nke ịdabere. Ọnụ ọgụgụ nke ọdịdị na mkpochapụ nke ọgwụ na ụbụrụ (na n'ebumnuche ya molekụla), ọnụ ọgụgụ kasị elu, na ogologo oge nke ikpughe nwere ike imetụta mmetụta ọgwụ na-eri ahụ.Ndị na-ere ahịa et al. 1989; de Wit et al. 1992; Gossop et al. 1992). A na-akwalite mmetụta euphorigenic nke ọgwụ site na nchịkọta ngwa ngwa na ụbụrụ (de Wit et al. 1992; Abreu et al. 2001; Nelson et al. 2006). Ọ bụ ezie na a na-amụbeghị ya nke ọma, mgbanwe ndị a na-ahụ maka ọgwụ ike nwere ike imetụta mmetụta mgbakasị ahụ, mgbakasị ahụ, na nghọta nke ọgwụ ọjọọ. A na-ekpebi ọnụego nnyefe ọgwụ site na ọgwụ n'onwe ya, usoro nhazi, na ụzọ nchịkwa a họọrọ. Nnyocha na-atụnyere ndị okenye na ndị nọ n'afọ iri na ụma nke ọgwụ ọjọọ eme ihe na-adịkarị obere ma ha ezughị oke n'ihe gbasara dose, ụzọ nchịkwa, na oge. Ọmụmụ ihe kacha enye nkọwa enyochala mmetụta omume yana ọgwụ ọgwụ n'otu aka ahụ wee gosipụta n'ozuzu na ọdịiche afọ na omume adịghị emetụta ọkwa ọgwụ dịgasị iche.

Nicotine na metabolite ya, cotinine, nke nwekwara ike na-arụsi ọrụ ike na ndu (Terry et al. 2005), na-emeziwanye ngwa ngwa n'oge uto karịa oke oke (Slotkin 2002). Agbanyeghị, n'ime ọmụmụ abụọ nke edoziri nicotine dosing iji nweta ọkwa plasma yiri nke ahụ, ndị nọ n'afọ iri na ụma ka na-egosipụta mbelata ihe ịrịba ama nke iwepụ ya (O'Dell et al. 2006, b). Ethanol yiri ka ọ na-abanye n'ụbụrụ na ọbara n'ogo na oke na ndị nọ n'afọ iri na ụma na ndị okenye (n'elu oke nke 5-30 min; Varlinskaya na Spear 2006) mana a na-ekpochapụ ya ngwa ngwa site na nwata karịa n'aka ụmụ oke ndị toro eto, karịa awa 2-18.Doremus et al. 2003). Otú ọ dị, ọdịiche dị na ịhịa aka n'ahụ abụghị ihe kpatara ọdịiche dị na nkwụsịtụ. Obere et al. (1996) gosiri na oke ndị nọ n'afọ iri na ụma na-atụfu echiche ziri ezi ha maka obere oge karịa ndị okenye mana, mgbe ha tetara, ha nwere oke mmanya na-aba n'anya n'ọbara. N'otu aka ahụ, ndịiche dị iche iche nke afọ na mmetụta locomotor na ethanol na-adabere na ọkwa mmanya ọbara (Stevenson et al. 2008). Methamphetamine na-akpali ọrụ locomotor ruo n'ókè dị nta na nwata karịa ụmụ oke ndị toro eto n'agbanyeghị na ha na-enweta ụbụrụ ụbụrụ yiri ya (Zombeck et al. 2009). Maka cocaine, otu ìgwè achọpụtala na ụmụ oke na-eto eto nwere ọkwa dị ala na ọbara na ụbụrụ na 15 min postinjection karịa ndị okenye (McCarthy et al. 2004). N'ụzọ dị iche, otu ọzọ egosila ọkwa dị elu na 5 min (Zombeck et al. 2009) n'agbanyeghị ịhụ mkpali locomotor belatara. Ndị otu anyị enyochala ọkwa ha nhata na anụ ahụ ụbụrụ yana ọkwa dị ala n'ọbara n'ime ndị nọ n'afọ iri na ụma ma e jiri ya tụnyere ndị okenye n'agbanyeghị eziokwu ahụ bụ na anyị hụrụ nzaghachi locomotor na oke ụmụ oke.Caster et al. 2005). Na nchịkọta, e nwere akụkọ banyere profaịlụ pharmacokinetic dị iche iche na ndị nọ n'afọ iri na ụma na oke oke ndị okenye, mana ha anaghị akọ maka ọdịiche omume metụtara afọ.

Mmetụta neurobiological

Ọmụmụ omume nke a chịkọtara n'elu na-arụtụ aka na nkwubi okwu na ndị na-eto eto nwere ike ịnagide ikpughe ọgwụ ọjọọ dị elu ma na-emekarị ugboro ugboro, ma enwebeghị data zuru ezu iji gosi ma ha nwere ike ịmepụta usoro mgbagwoju anya nke ịṅụ ọgwụ ọjọọ na ịdabere na omume. Ọmụmụ ihe ndị ọzọ nwere ụdị ndabere ọgwụ zuru oke dị mkpa iji kwado ma ọ bụ gbaghaa ịkọ nkọ a. Tụkwasị na nke ahụ, nghọta nke ihe omimi na neurophysiological ndabere nke ndabere ọgwụ bụ isi ihe iji chọpụta ma usoro ahụ na-eme ngwa ngwa ma ọ bụ na-eto eto. Ebumnuche buru ibu nke nyocha bụ iji ghọta ntọala physiological nke ndabere ọgwụ. A na-enyocha nchoputa ndị a nke ọma n'ebe ndị ọzọ (Robinson na Berridge 1993; 2000; Nestler 1994; Fitzgerald na Nestler 1995; Nestler et al. 1996; Volkow na Fowler 2000; Koob na Le Moal 2001; Hyman na Malenka 2001; Shalev et al. 2002; Winder et al. 2002; Goldstein na Volkow 2002; Kalivas na Volkow 2005; Yuferov et al. 2005; Grueter et al. 2007; Kalivas na O'Brien 2008). Ha na-enye usoro maka nyochaa usoro molekụla na neurophysiologic nke nwere ike ime ka adịghị ike iji ọgwụ eme ihe na ndị nọ n'afọ iri na ụma.

Ọtụtụ ọmụmụ nwalere ma enwere ọdịiche nke mkpụrụ ndụ na physiological n'etiti ndị nọ n'afọ iri na ụma na ndị okenye nwere ike ịkpata adịghị ike dị iche na ịdabere na ọgwụ (leeSchepis et al. 2008) maka nyochaa). N'ozuzu, ọmụmụ ihe omimi na nke anụ ahụ ekpughere usoro ndị nwere ike jikọta na ọdịiche dị iche iche nke afọ na uche maka ụgwọ ọrụ ọgwụ, ma ihe akaebe banyere ihe omume neuroplastic metụtara mgbanwe na iji ọgwụ ọjọọ eme ihe adịghị adị. Mmetụta mbụ na-akwụghachi ụgwọ nke ọgwụ ọjọọ eme ihe na-adabere na akara ngosi dopaminergic. Ndị nọ n'afọ iri na ụma nwere neurocircuitry dopaminergic na-eto ngwa ngwa na mpaghara metụtara ụgwọ ọrụ ọgwụ, n'ihe gbasara presynaptic na ọrụ postsynaptic dị ka onye na-ebugharị dopamine na nkwupụta nnabata (Seeman et al. 1987; Palacios et al. 1988; Teicher et al. 1995; Tarazi et al. 1998a, b, 1999; Meng et al. 1999; Montague et al. 1999; Andersen et al. 2002; Andersen 2003, 2005) na ọdịnaya dopamine na ụbụrụ ụbụrụ (Andersen 2003, 2005). Ọmụmụ ihe ndị a egosila na ntinye ụbụrụ ụbụrụ na-aga n'ihu site n'oge uto, yana ọkwa nke akara njedebe dị ka ọdịnaya dopamine, ndị na-ebugharị, na enzymes sịntetik na-erute ọnụ ọgụgụ kasị elu n'oge uto. Nọmba nnabata Postsynaptik na-arị elu wee gbadaa n'ogo okenye ka inneration na-aghọ nke zuru oke. Ọtụtụ ọmụmụ na-egosi na ọkwa basal nke synapti dopamine dị ala n'oge usoro mmepe a.Andersen na Gazzara 1993; Badanich et al. 2006; Laviola et al. 2001; ma lee Camarini et al. 2008; Cao et al. 2007 b; Frantz et al. 2007) nke kwekọrọ na innervation ezughị ezu. Ndị nọ n'afọ iri na ụma dị iche na ndị okenye na ọnụọgụ dopamine ewepụtara na nzaghachi amphetamine na cocaine: mgbanwe pasent na ọkwa dopamine extracellular dị ukwuu na ndị nọ n'afọ iri na ụma karịa ndị okenye.Laviola et al. 2001; Walker na Kuhn 2008; ma lee Badanich et al. 2006; Frantz et al. 2007), na ọnụego mmụba nwere ike ịdị ngwa ngwa na ndị nọ n'afọ iri na ụma (Badanich et al. 2006; Camarini et al. 2008). N'ime ọmụmụ ihe ndị a, otu nchọpụta dị oke mkpa nke nsonaazụ nnwale bụ afọ nke e mere nnwale ahụ: usoro dopamine n'oge uto (ụbọchị 28) dị nnọọ iche na ndị nọ n'oge uto (ụbọchị 42) na mmalite nke ịghọ okenye (ụbọchị). 60).

Ndịiche neurobiologic ndị a n'etiti ndị nọ n'afọ iri na ụma na ndị okenye anaghị ekwenyekarị na usoro omume. Dịka ọmụmaatụ, a na-ebelata mmetụta uche nke psychostimulant na ndị nọ n'afọ iri na ụma n'agbanyeghị mmụba dị ukwuu na dopamine.Laviola et al. 2001; Frantz et al. 2007), ebe mmasị ọnọdụ ọnọdụ dị ukwuu na ndị nọ n'afọ iri na ụma n'agbanyeghị mmụba yiri nke dopamine (Badanich et al. 2006). Otu nnyocha nke hụrụ nkwekọ n'etiti ntọhapụ dopamine na nchịkwa onwe onye na-ahụ maka afọ adịghị egosi ọdịiche dị n'afọ ọ bụla na nha ọ bụla (Frantz et al. 2007).

N'otu aka ahụ, a kọwokwa nchoputa na-enweghị isi gbasara nzaghachi molekụla na physiological maka ịṅụ ọgwụ ogologo oge. Mkpughe ogologo oge na-eduga n'ịbelata ntinye nke mkpụrụ ndụ ihe nketa nke mbụ (dị ka c-fos), nhazi nke mkpụrụ ndụ ihe nketa ndị ọzọ, na nchịkọta protein dị ogologo dị ka delta Fos B, nke na-adịgide ruo ụbọchị ma ọ bụ izu.Kalivas na O'Brien 2008). Mgbanwe ndị a na-eso ma nwee ike megharịa nhazigharị synapti na sekit cortical na akara ngosi glutamatergic dysregulated nke a na-eche na ọ na-ebute ịchọ ọgwụ ọrịa. Nnyocha ole na ole enyochala ntinye nke c-fos na nzaghachi ọgwụ ọjọọ eme ihe na ndị nọ n'afọ iri na ụma vs. ndị okenye, na nsonaazụ ya na-agbanwe nke ukwuu na dabere na mpaghara ụbụrụ enyocha, ihe na-akpali akpali, na dose. Shram et al. hụrụ na mgbe obere dose (0.4 mg / kg) ma ọ bụghị elu dose (0.8 mg / kg) nicotine, ndị nọ n'afọ iri na ụma kwuputara c-fos ka ukwuu na shei medial nucleus accumbens shell (Shram et al. 2007a). A kọwapụtala ụdị ọgwụ ahụ kpọmkwem mmetụta afọ maka cocaine. Ọmụmụ ihe atọ egosila na ndị okenye na-emepụta okwu c-fos karịa ndị nọ n'afọ iri na ụma na mpaghara ole na ole striatal mgbe oke dose (30-40 mg / kg) gasịrị. cocaine (Kosofsky et al. 1995; Cao et al. 2007 b; Caster na Kuhn 2009). N'ụzọ dị iche, ndị nọ n'afọ iri na ụma na-enwe nzaghachi dị ukwuu n'ime dorsal striatum na medial shei nke nucleus accumens na nzaghachi nke cocaine dị ala (10 mg / kg; Caster na Kuhn 2009). N'ọtụtụ mpaghara ụbụrụ, Otú ọ dị, induction fos yiri n'etiti afọ abụọ (maka nicotine amygdala, locus coeruleus, mpụta septum, elu colliculus (Cao et al. 2007a; Shram et al. 2007a) na maka cocaine ihe ndina nke stria terminalis (Cao et al. 2007 bcortex na cerebellum (Kosofsky et al. 1995)). A na-ahazikwa ngwaahịa protein kwụsiri ike nke mkpụrụ ndụ fos, delta Fos B, n'ụdị ọgwụ na mpaghara akọwapụtara. Mgbe ọgwụgwọ na nicotine, otu otu akọpụtabeghị mmetụta afọ ọ bụla (Soderstrom et al. 2007). Mgbe cocaine or amphetamine, ndị nọ n'afọ iri na ụma na-egosipụtakwu delta Fos B na nucleus accumbens na caudate putamen (Ehrlich et al. 2002). N'ozuzu, ọmụmụ ihe ndị dị ugbu a bụ ihe na-adịghị mma banyere ma mgbanwe molekụla nke a na-eche na ọ dị mkpa maka mgbanwe na ịṅụ ọgwụ ike na-emebiga ihe ókè na ndị nọ n'afọ iri na ụma.

Mmetụta omume na-adịte aka nke ịṅụ ọgwụ ike ugboro ugboro nwere ike bụrụ onye ogbugbo site na nrụpụta synapti gbanwere nke usoro nhazi na biochemical wetara. Dendritic arbors na nucleus accumbens na prefrontal cortex na-agbanwe mgbe ogologo oge gasịrị. cocaine na amphetamine mkpughepụ (Robinson na Kolb 2004), mana agbanwebeghị mgbanwe ndị a na ndị nọ n'afọ iri na ụma na ndị okenye. Mgbe ikpughe na nicotine, ogologo dendritic na-emetụta dị iche iche na-eto eto vs. oke oke na prelimbic cortex (Bergstrom et al. 2008) na ọnya ụkwara (McDonald et al. 2007). A ka ga-akọwapụta uru ọrụ dị iche iche ndị a pụtara.

A pụkwara ịgbanwe nzaghachi eletrọnịkị site na ọgwụ ọjọọ. Dị ka ihe atụ, ọmụmụ na okenye òké egosila na ugboro ugboro onwe-elekọta ma ọ bụ experimenter nchịkwa nke cocaine na-ebelata ike synapti glutamatergic na nucleus accumens (Thomas et al. 2001; Schramm-Sapyta et al. 2005) ma na-ebelata ịda mbà n'obi ogologo oge n'ime oghere akwa nke stria terminalis (Grueter et al. 2006). Mgbanwe ndị a dakọtara na ọkwa okwu agbanweela α-amino-3-hydroxyl-5-methyl-4-iso-xazole-propionate na Nmethyl-D-aspartic acid nnabataLu et al. 1997, 1999; Lu na Wolf 1999). Oke ndị nọ n'afọ iri na ụma na-enwekarị ike ịnweta plasticity na nucleus accumens (Schramm et al. 2002) na n'ọtụtụ mpaghara ụbụrụ ndị ọzọ (Kirkwood et al. 1995; Izumi na Zorumski 1995; Crair na Malenka 1995; Liao na Malinow 1996; Partridge et al. 2000) na nzaghachi na mkpali eletriki na ya mere ọ nwere ike bụrụ ihe dị mfe na mmetụta nke cocaine. Nzaghachi electrophysiological nke sekit a na ọgwụ eji eme ihe na-enye usoro nwere ike ime ka ọ dịkwuo mfe na-eto eto na SUD mana ejighị ya tụnyere nwata na ụmụ anụmanụ toro eto. Ọtụtụ usoro ndị ọzọ nwere ike ka achọpụtabeghị na ndị nọ n'afọ iri na ụma na ndị okenye n'oge a, dị ka okwu nnabata glutamate.Lu et al. 1999; Lu na Wolf 1999) na chromatin remodeling (Kumar et al. 2005). Ọ bụrụ na ọmụmụ omume gosipụtara nke ọma na mmalite nwata bụ ihe kpatara ọganihu n'ịchọ ọgwụ ike, mgbe ahụ, ekwesịrị inyocha usoro ndị a.

Ọmụmụ ihe n'ọdịnihu kwesịrị ilekwasị anya n'ijikọta ọmụmụ ihe ọmụmụ ihe ọmụmụ na physiological na ụdị omume dị mkpa iji lebara mgbanwe mgbanwe molekụla dị mkpa na ịdabere na ọgwụ ọjọọ na ịjụ ma ọdịiche dị ugbu a n'etiti ndị ntorobịa na ndị okenye nwere ike ime ka ọdịiche dị na omume metụtara SUD.

Summary

Na nyocha a, anyị atụlewo ajụjụ banyere ma ndị na-eto eto na-enwekarị ike ịṅụ ọgwụ ọjọọ karịa ndị okenye site n'ịchịkọta nsonaazụ sitere na ọmụmụ anụmanụ. Ọmụmụ ihe ndị a na-atụ aro nkwubi okwu anọ:

  1. A na-atụdo nguzozi nke na-akwụghachi ụgwọ vs. mmetụta ọjọọ nke ọgwụ ọjọọ eme ihe maka ụgwọ ọrụ na ndị nọ n'afọ iri na ụma, dị ka egosiri na mmasị ebe, ịkpọasị ebe, na ọmụmụ ịkpọasị. Nke a nwere ike ịbawanye ịṅụ ọgwụ ọjọọ nke ndị na-eto eto.
  2. Ndị nọ n'afọ iri na ụma anaghị enwe mmetụta mgbe niile maka mmetụta mwepu. Nke a nwere ike ịkwalite iji ọgwụ eme ihe n'oge mmalite ma chebe megide mmepe nke ịchọ ọgwụ mmanye mgbe ejiri ogologo oge mee ihe.
  3. Ndị nọ n'afọ iri na ụma anaghị enwe mmetụta mgbe niile n'ịkwalite ma ọ bụ mmetụta locomotor nke ọgwụ ọjọọ eme ihe dị ka egosiri na nchịkwa onwe na ọmụmụ ihe.
  4. Ndị nọ n'afọ iri na ụma na-enwe mgbanwe na nhazi nke neuronal na ọrụ na mpaghara ụbụrụ metụtara ụgwọ ọrụ na nhazi omume, nke nwere ike imetụta nkwụsị nke ịdabere na ọgwụ ọjọọ, ọ bụ ezie na ọmụmụ ihe na-egosi ihe kpatara ya adịghị ugbu a.

Ọmụmụ ihe ndị a na-atụ aro na ndị nọ n'afọ iri na ụma na-enweta "ntụziaka" dị iche iche nke na-akwụghachi ụgwọ na mmetụta ọjọọ nke ọgwụ ọjọọ eme ihe. Ntụziaka a nwere ike ịnọchite anya adịghị ike maka mmụba nnwale. Agbanyeghị, otu ihe dị oke mkpa na-efu na ikike anyị ịtụle ihe egwu dị n'ihe ọghọm nke nwata na SUD. Enwere data ole na ole gbasara ịga n'ihu na-achọ ọgwụ mmanye, njirimara nke ịdabere na ọgwụ. Ọ dị mkpa iji nyochaa n'ụzọ zuru ezu ụdị anụmanụ nke ọganihu na-adabere na ọgwụ ọjọọ iji lebara ma ndị na-eto eto na-azụlite iji mmanye ugboro ugboro ma ọ bụ ngwa ngwa karịa ndị okenye yana ma ndị na-eto eto na-eguzogide ma ọ bụ na-eguzogide ọgwụ na-ekpochapụ na iweghachi ọgwụ. Nke abụọ, ọtụtụ ọmụmụ banyere mmetụta nke ikpughe n'oge uto na ọrụ ọgụgụ isi, karịsịa metụtara njikwa ndị isi, ka akwadoro. Nke atọ, ọmụmụ banyere mgbanwe molekụla na nzaghachi maka ọgwụ ọjọọ eme ihe na ndị nọ n'afọ iri na ụma na ndị okenye ezughị ezu na enweghị njedebe. Dị ka ụdị anụmanụ nke ọganihu na-eri ahụ na-aghọta nke ọma ma na-etolite, mgbanwe nke mkpụrụ ndụ ihe na-akpata mgbanwe a nwere ike nyochaa n'ime omimi dị omimi ma nwee ike ikpebi ọrụ nke mmetụta ndị a.

N'ikpeazụ, isi ntụziaka maka nyocha n'ọdịnihu bụ njikọ dị n'etiti afọ ndị metụtara afọ na ndịiche nke onye ọ bụla. Ọmụmụ mmadụ (Dawes et al. 2000) na ụfọdụ ọmụmụ anụmanụ (Barr et al. 2004; Perry et al. 2007) na-atụ aro na mkpụrụ ndụ ihe nketa, gburugburu ebe obibi, na psychopathology na-enye aka n'ịṅụ ọgwụ mbụ na mmepe nke riri ahụ. Nghọta nke ọma banyere mmekọrịta a ga-aba uru nke ukwuu mgbochi na mgbalị ọgwụgwọ: mgbe anyị nwere ike ikpebi onye ọ ga-abụ na ọ ga-eri ahụ na ihe kpatara ya, mgbe ahụ, anyị nwere ike igbochi na ịgwọ nsogbu ọgwụ ọjọọ na ndị ahụ nke ọma, n'agbanyeghị mgbe ha malitere iji ọgwụ ọjọọ eme ihe.

Ozi onye inyeaka

Nicole L. Schramm-Sapyta, Mahadum Duke, Durham, NC, USA.

Q. David Walker, Mahadum Duke, Durham, NC, USA.

Joseph M. Caster, Mahadum Duke, Durham, NC, USA.

Edward D. Levin, Mahadum Duke, Durham, NC, USA.

Cynthia M. Kuhn, Mahadum Duke, Durham, NC, USA.

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