Meputso oa Amphetamine Motseng oa Sekepe sa Monogamous Pralee (2007)

Liphetoho: Motheo oa mantlha ke hore temallo e etsa hore mekhoa e kopane e kopanetsoeng ke moputso. Ka hona, bokhoba ba litšoantšo tse litšila tse tsosang takatso bo ama mekhoa e momahaneng e 'meleng oa rona.


Meputso oa Amphetamine Motseng oa Sekhukhu sa Mammong

Neurosci Lett. Sengoloa se ngotsoeng; e fumaneha ho PMC Jul 10, 2009.

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PMCID: PMC2708345

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Eya ho:

inahaneloang

Boithuto ba morao-rao bo bonts'itse hore melaoana ea maqhubu a tlamahano ea maqhama a mabeli pakeng tsa monogamous prairie vole (Microtus ochrogaster) e tšoana le ea ho ts'oara lithethefatsi ho litoeba tsa setso tsa setso. Ka hona, likhohlano tse matla pakeng tsa boitšoaro ba sechaba le moputso oa lithethefatsi li ka lebelloa. Mona, re thehile Vere ea prairie e le mohlala oa lithuto tsa lithethefatsi ka ho supa likhetho tsa sebaka sa maemo a holimo sa mofuta oa mofuta oa mofuta oa mofuta oa mofuta ona. Bakeng sa ba batona le ba batšehali, litlamorao tsa amphetamine li ne li its'etleha ho litekanyetso, 'me basali e le ba amehang haholo kalafong ea lithethefatsi. Boithuto bona bo emela bopaki ba pele ba moputso oa lithethefatsi ho mefuta ena. Boithuto ba nako e tlang bo tla hlahloba litlamorao tsa boits'oaro sechabeng moputsong oa lithethefatsi le lefu la motheo la ts'ebelisano e joalo.

Keywords: tlhekefetso ea lithethefatsi, bokhoba ba lithethefatsi, boikhethelo ba sebaka, setlamo, tlamo ea sechaba, monogamy

Ho na le lintho tse ngata tse bakang tšebeliso e mpe ea lithethefatsi. Ho kenyellelitsoe tsena ke phello ea lefutso le ho fumaneha hoa lithethefatsi, lintho tse fetohileng hantle tse entsoeng ka litoeba tsa setso tsa laboratori le tse bonts'itsoeng hore li na le tšusumetso e matla litekanyetsong tsa ho batla lithethefatsi [1, 18, 22, 59]. Leha ho le joalo, ho na le mathata a mang a tsejoang a susumetsang tšebeliso ea lithethefatsi ho batho, joalo ka tikoloho ea sechaba [31]. Ho fapana hona ho thata haholo ho ithuta ka laboratoring hobane lithuto tsa setso ha se bontše mokhatlo o hlophisitsoeng o amanang le litaba tse bonts'itsoeng ke batho [4]. Boithuto lithutong tsa khale tseo eseng batho li bonts'a bohlokoa ba maemo a phahameng sechabeng tšebelisong ea lithethefatsi [39]. Leha ho le joalo, liteko tsa morao-rao ha li sebetse lilaboratori tse ngata mme ka lebaka leo ho utloisisa ts'ebelisano pakeng tsa boitšoaro ba sechaba le tlhekefetso ea lithethefatsi ho ne ho tla tsamaisoa haholo ha ho ithutoa ka mehlala e metle. Mona, re nkile mohato oa pele ho fihlela sena ka ho theha mofuta o ikhethang oa sechabeng, "monogamous prairie vole (Microtus ochrogaster), bakeng sa lithuto tsa lithethefatsi.

The prairie vole ke mohlala o matla bakeng sa lithuto tsa maqhama a botsoalle [13, 23]. Tse tona le tse tšehali tsa mofuta ona li bonts'a ho ikhetholla le molekane a le mong [20], bonts'a maemo a phahameng a boitšoaro ba motsoali [36-38, 43], 'me le thehe maqhama a tiisitseng a mabeli, a bolokiloeng leha setho se le seng se lahlehile.57]. Ho theha maqhama a maqhama a marang-rang ho ithutoa khafetsa ka laboratoring ka ho sebelisa tlhahlobo ea khetho ea molekane [60, 61] 'me lithuto tse joalo li fane ka temohisiso e ntle mabapi le taolo ea maqhubu a tlamahano ea bonono [62]. Haholo-holo, liphuputso tsa morao-rao li bontšitse hore ho theha maqhama a mabeli le tlhokomelo ea 'mele li itšetleha haholo ka likarolo tsa bohlokoa tsa ho potoloha ha moputso oa boko, ho kenyelletsa le nucleus accumbens le ventral pallidum [2, 3, 24, 33-35]. Libaka tsena tsa boko li bohlokoa bakeng sa ho sebetsa tlhahisoleseling mabapi le meputso e meng ea tlhaho, joalo ka lijo le thobalano [9, 29, 46, 47], mme potoloho ena ke sepheo sa mantlha sa lithethefatsi tsohle tsa tlhekefetso [42].

Ka lebaka la hore moputso oa ho matahana le lithethefatsi o kenyelletsa litsamaiso tse tšoanang tsa neural, ho ka ba le tšebelisano e kholo lipakeng tsa boitšoaro ba sechaba le ho batla lithethefatsi. Ho tsamaisa lipatlisiso tsa lipuisano tsena re thehile mofuta oa bohlokoa oa lithuto tsa lithethefatsi ka ho theha likhetho tsa sebaka sa phephetso (AMP) sa mofuta oa mofuta oa amphetamine. Lintlha tsa rona li bonts'a hore lethalinyana la AMPH le ts'episitse ka kotloloho ho ba batona le ba batšehali, le hore basali ba tsotella kalafo ea lithethefatsi. Liphumano tsena li fana ka motheo oa lithuto tsa nako e tlang tse shebaneng le tšebelisano lipakeng tsa tlamo ea mafahla le moputso oa lithethefatsi.

Lisebelisoa le mekhoa

Animals

Bafetsi e ne e le banna ba hlokang thobalano ba hlokang thobalano (n = 37) le basali (n = 36) ba tsoang lihlopheng tsa kolofo ea laboratori. Matsatsing a 21 a lilemo, lithuto li ile tsa khoesoa 'me tsa bolokoa ka ba babeli ba ngoan'abo ngoanana a le mong ka mekotla ea polasetiki (12cm high x 28cm long × 16cm wide). Ho ile ha fanoa ka metsi le lijo ad libitum, 14: Potoloho ea lefifi la 10 e ile ea bolokoa, 'me mocheso o ne o batla o le 20 ° C. Lithuto tsohle li ne li le pakeng tsa matsatsi a 80-120 ha a ne a lekoa ebile a lekoa pakeng tsa 35-50g. Ts'ebetso ea liteko e amohetsoe ke Komiti ea Tlhokomelo ea Liphoofolo le Ts'ebeliso Univesithing ea Florida State mme e entsoe ho latela National Institute of Health Guide bakeng sa Tlhokomelo le Ts'ebeliso ea Liphoofolo tsa Laboraro (NIH Pub No. 80-23).

Sebaka se khethiloeng sa sebaka

Lihlooho tsa mantlha li ile tsa lekoa pele ho lisebelisoa tsa boikhethelo tsa likamore tsa 2 tsa 30 min. Sesebelisoa sena se ne se e-na le kh'opo ea polasetiki e ntšo (20 × 25 × 45 cm) e nang le sekoaelo se tiileng sa tšepe le kh'omo e ts'oanang e tšoeu ea polasetiki (20 × 25 × 45 cm) e nang le sekoaelo sa mohala. Sekoahelo sa mesamo ea terata se ne se lumella khanya e eketsehileng mekotleng e tšoeu ha e bapisoa le likhalase tse tiileng tsa tšepe tse neng li sebelisoa bakeng sa koena e ntšo, e entseng tikoloho e lefifi. Qalong ea teko ea pele ho nako, halofo e 'ngoe ea lithuto e ne e kentsoe ka koekoaneng e tšoeu, halofo e' ngoe e ne e kentsoe ka mokotleng o motšo (mokhoa ona o ne o sebelisoa qalong ea tlhahlobo ea CPP). Cage e ne e hokahantsoe ke sepache sa polasetiki (7.5 × 16 cm) se neng se lumella phoofolo hore e tsamaee ka bolokolohi lipakeng tsa likamore tse peli. Litšitiso tsa Cage le nako e sebelisitsoeng terakeng e 'ngoe le e' ngoe li lekantsoe ke likheo tsa photobeam le lenaneo la tlhahlobo ea locomotor (Ross Henderson, FSU). Morero oa tlhahlobo ea pele ho nako e ne e le ho bona hore na ho na le khetho ea tlhaho bakeng sa khetsi e ntšo kapa e tšoeu. Ho makatsang ke hore liteko tsa lifofane le ba batona li bontšitse hore mofuta ona o rata kantle e tšoeu. Ka hona re lekile ho khutlisa khetho ena ka ho rala tikoloho ea koena e ntšo le AMPH; ie tlhahlobo e khetholloang.

Ka letsatsi le leng ka mor'a tlhahlobo ea pele ho nako, halofo e le 'ngoe ea lithuto e ile ea amohela liente tsa introperitoneal (IP) tsa letsoai' me ea kenngoa ka har'a lekhulo le tšoeu ka sekoahelo sa mesifa ea terata ka lihora tse peli. Lithuto tse setseng li fuoe saline e nang le 0.1, 0.5, 1.0 kapa 3.0 mg / kg d-amphetamine sulfate mme e behiloe ka har'a lekhulo le letšo le nang le sekwahelo sa tšepe se tiileng, le sona ka lihora tse peli. Lithuto tse fanang ka maemo li ile tsa fetoloa ka tatellano bakeng sa matsatsi a 8, ka hona li fana ka li-pair tsa 4 tse amanang le saline le AMPH. Letsatsing le latelang kamora letsatsi la ho qetela la maemo, baithuto ba maemong a se nang lithethefatsi ba ile ba fuoa monyetla oa ho khetha lisebelisoa tsa 30 min. Liteko tsa pele, liteko tsa nakoana, le liteko tsa sebaka sa boikhethelo li ile tsa etsoa kaofela nakong ea lebone; lipakeng tsa 10: 00 le 14: 00h.

Tlhahlobo ea data

CPP e hlalositsoe ke phetoho ea nako e sebelisitsoeng karaing ea AMPH e neng e entsoe ka pele le ka mor'a boemo [5]. Mona, re hlahisa tlhahisoleseling ha liphetoho li tsoa lipereseng tsa tlhahlobo ea pele ho kalafo ea AMPH le ea letsoai: nako eohle e sebelisitsoeng koung ea AMPH (kapa ea saline) kamora boemo e arotsoe ke nako e sebelisitsoeng ho koleche ea AMPH (kapa saline) pele ho boemo (ke hore liteko tsa pele), e ekeletsoe ke 100. Liteko tsa t-sampuli tsa Paired li ile tsa etsoa ho bona hore na ho na le phapang e kholo ea nako e sebelisitsoeng khosatsaneng e ts'oaroang ke AMPH pele le ka mor'a ho boemo. Kaha ho ne ho lebelletsoe keketseho ea koleche e tsamaeang ka letsoho la AMPH, liteko tse nang le tai e le 'ngoe li ile tsa sebelisoa ho khetholla boleng ba p-boleng.

Results

Tumellanong le liteko tsa rona tsa lifofane (bona Mekhoa), banna ba bontšitse nako e ngata haholo e sebelisitsoeng ka hokong e tšoeu (16.7 ± 1.2 min) ha e bapisoa le ntloana e ntšo (11.7 ± 1.1 min) kamora maemo a taolo le liente tsa saline (t = 4.29; p 0.05) (Setšoantšo sa 1a). Kahoo, lesaka le sa rateheng le sebelitse joalo ka tikoloho e kopantsoeng le AMPH litekong tse latelang ho leka ho khutlisa khetho ena. Tekanyo e tlase ea AMPH (0.1mg / kg) ha ea ka ea hlahisa khetho ea tikoloho efe kapa efe (t = 0.78; p> 0.2) (Setšoantšo sa 1a). Leha ho le joalo, boemo bo nang le litekanyetso tse phahameng tsa AMPH (0.5 ho isa ho 3.0mg / kg), ho banna, ho felletse ka likhetho tse matla bakeng sa tikoloho e nang le lithethefatsi (t = 2.49, 2.11, le 4.95, ka ho latellana; p <0.05) (Setšoantšo sa 1a).

Setšoantšo sa 1  

Amphetamine e kenyellelitse khetho ea sebaka maemong a banna le basali basali ba rorisang. a) Bakeng sa ba batona, lithuto tsa taolo (n = 5) li bonts'itse khetho ea tlhaho bakeng sa tikoloho e tla latela e le tikoloho ea letsoai (bar e bulehileng). Boemo ba AMPH ...

Li-voes tsa basali li ne li sa bontše khetho ea tlhaho ea kamore efe kapa efe, kaha ho ne ho se na khetho bakeng sa kamore efe kapa efe e latelang boemo ba taolo le letsoai (t = 0.52; p> 0.3) (Feiga. 1b). Tsamaiso ea tekanyetso e tlase ea AMPH (0.1mg / kg) e hlahisitse mokhoa o lebisang ho khetho ea tikoloho e kopaneng ea lithethefatsi (t = 1.60; p = 0.07), athe 0.5mg / kg e hlohlellelitse CPP e matla (t = 4.07; p <0.05 ) (Feiga. 1b). Ho fapana le banna, litekanyetso tse phahameng tsa AMPH (1.0 le 3.0mg / kg) li hlolehile ho susumetsa CPP (t = 1.25 le 0.59, ka ho latellana; p> 0.1) (Feiga. 1b).

Ka lebaka la hore tekanyetso e phahameng ea AMPH (1.0 le 3.0mg / kg) e qobelle CPP ho banna empa eseng basali, mme lethal dose le tlase la AMPH (0.1mg / kg) le bonahala le sebetsa haholoanyane ho basali, ho ka bonahala eka basali ba tsotella lithethefatsi haholo. kalafo bapisoa le ba batona. Liphapang tsena ha li bakoe ke ho fapana lipakeng tsa maemo a ts'ebetso kaha ho ne ho se na phapang lipakeng tsa banna le basali ka palo ea linotlolo tse kenngoeng ka har'a lisebelisoa tsa CPP (banna 22.2 ± 1.4; females 20.1 ± 1.3; mean mean phoso e tloaelehileng). Ho kenyelletsa moo, ts'ebetso ea locomotor ha ea fetoha pele le kamora boemo ba banna kapa ba basali (Lethathamo 1).

Lethathamo 1  

Palo ea likhopo e tšela kahare ho lisebelisoa tse ikhethileng tsa sebaka se ka pele ho boemo (Teko ea pele-pele) le kamora boemo (CPP). Ha ho na phapang ea mosebetsi oa popom pakeng tsa ba batona le ba batšehali. Hape ha ho na phapang mesebetsing ea locomotor ...

Puisano

Boithuto bona bo emela pontsho ea pele ea moputso oa lithethefatsi ka har'a monogamous prairie vole. E ts'oanang le mefuta e meng ea litoeba, CPP e kenyellelitsoeng ke mofere-fere ka li-voire adereses e itšetlehileng ka lethal dose [5, 58]. Boholo ba lithuto tsa CPP tse kenyellelitsoeng ke AMPH li entsoe ka likhoto tsa banna, 'me lithuto tsena li bontša hore tekanyetso e sebetsang ka ho fetisisa ea AMPH e oela pakeng tsa 0.3 le 3.0 mg / kg [25, 55], mefuta e lumellanang le liphetho tsa hajoale ho tsoa lipapatsong tsa banna ba basali. Bakeng sa banna, tekanyetso e phahameng ka ho fetisisa e sebelisitsoeng (3.0mg / kg) e bonahala e sa sebetse hantle ho feta tekanyetso ea methapo (0.5 le 1.0mg / kg). Sena se lumellana le lithuto tse bonts'ang hore litekanyetso tse phahameng tsa AMPH ha li na katleho, kapa ha e le hantle, ke tse khelohang [11].

Bakeng sa basali, karabelo ea tekanyetso e fetisitsoe ka letsohong le letšehali, ka tekanyo e tlase e sebelisitsoeng (0.1mg / kg) e bonts'a mokhoa o lebisang ho CPP le litekanyetso tse phahameng, tse neng li sebetsa hantle ho banna (1.0 le 3.0mg / kg), ba ile ba hloleha ho susumetsa CPP. Sena se lumellana le lithuto tsa pejana ho mefuta e meng e neng e bonts'a hore basali ba ne ba amehile haholo ho li-psychostimulants [7, 49]. Liphetoho tse tšoanang tsa leqele li bonts'itsoe bakeng sa CPP e kenyellelitsoeng ho limpimpi tsa basali [16, 32] le CPP e qobelloang ke koae ka likhoto tsa basali [51]. AMPH le cocaine le tsona li baka tlhalohanyo ea boits'oaro bo botle le keketseho e kholo ea tokollo ea dopamine kahare ho striatum le li-nucleus tse bokellaneng litekong tsa basali [6]. Boithuto ba rona, ka hona, bo fana ka bopaki bo eketsehileng ba hore basali, ka kakaretso, ba amehile haholo ka litlamorao tsa lithethefatsi ho feta ba batona [50].

Tlatsetso e kholo phapusing ea botona le botšehali ea maikutlo a psychostimulant ho litoeba ke maemo a serum estrogen [12]. Tse tšehali li tsotella haholo nakong ea estrous and exo native estrogen hape li eketsa boits'oaro bo susumetsang ba AMPH le tlhahiso ea dopamine ea AMPH-induced dopamine ho li-nucleus accumbens [7, 8]. Leha ho le joalo, li-voes tsa prairie li qhekelletse li-ovulators [14, 27], hape o na le maemo a tlase a serum le estradiol ea kelello [53]. Basal estradiol e tlase e kanna ea hlalosa hore na ke hobaneng ha liphapang tsa thobalano ho mefuta ena li sa hlahisoe haholo, joalo ka ha li lumellana le liphuputso ho likhoto, ho bonts'a ha basali ba ovariectomised ba ntse ba amehile haholo ho AMPH ho feta banna, empa liphapang ha li na matla ho feta tse nang le morero potoloho ea estrus [8].

Lisebelisoa tse ling tsa li-hormone li kanna tsa kenya letsoho phapusing ea botona le botšehali ho kutlo ea li-psychostimulants. Mohlala, corticosterone (CORT) e bapala karolo ea bohlokoa ho kopanyeleng moputso oa lithethefatsi [48] 'me adrenalectomy e tlosa phapang ea thobalano ho CPP e kenyellelitsoeng ho lintja [51]. Li-voiri tsa Prairie li na le maemo a phahameng haholo a serum CORT ha a bapisoa le litoeba tsa setso tsa laboratori [56] mme ba batona le ba batšehali ba fapana haholo ka phetoho maemong a CORT ho arabela mefuta e fapaneng ea kalafo [19]. Ho feta moo, phapang liphatseng tsa lefutso lipakeng tsa ba batona le ba batšehali [17] e ka boela ea kenya letsoho ho tsotelleng kalafo ea lithethefatsi. Boithuto ba nako e tlang boa hlokahala ho sebetsana le biology ea motheo ea phapang ea thobalano le kalafo ea lithethefatsi libakeng tsa tumellano ea litlatsetso.

Ho theha tlotlo ea tlotlo ea lithuto tsa lithethefatsi e fana ka motheo oa lipatlisiso tsa nako e tlang tsa tšebelisano lipakeng tsa tlamahano le litheko tsa lithethefatsi. Haesale ho tsebahala ka lilemo tse fetang mashome a mabeli hore tlamahano ea bo-mme e its'etlehile ho ho saena hoa opioid [44], karolo ea li-opiates ho tlamahaneng ea bong bo fapaneng ha e tsejoe haholo [54]. Leha ho le joalo, kutloisiso e qaqileng ea taolo ea dopamine ea bonding e hlahile [3] 'me hoa makatsa hore ebe bonono le ho itaola ha li-psychostimulants li na le mekhoa e tšoanang ea neural [3, 52]. Sena se lumellana le khopolo ea hore lithethefatsi tse sebelisang lithethefatsi hampe li ka laola boitšoaro hobane li etsa hore tšebetso ea boko li hlahisoe ka tsela ea bohlokoa hore li phele.10, 21, 28, 41], ho kenyelletsa le tlamo ea botsoalle [15, 26, 45]. Ebile, ho fanoe ka maikutlo a hore batho ba nang le tikoloho e sotlehileng ea tikoloho ba ka ba le monyetla oa ho susumetsa ka boomo litsela tsena [40, 45] le hore tšehetso ea sechaba e ka fokotsa takatso e matla ea ho lemalla [44]. Sena se tšehelitsoe ke lithuto tse bonts'ang hore tikoloho e ntle ea sechaba e molemo ho hlaphoheloa bokhobeng ba lithethefatsi [30, 31]. Lithuto tsa nako e tlang li tla leka ka kotloloho hore na li-voles tse tlamahaneng li 'sirelelitsoe' khahlano le litheko tsa lithethefatsi mme ka tšepo li ntlafatse kalafo le thibelo ea tšebeliso ea lithethefatsi.

lumela hore baa fokola

Bangoli ba ka thabela ho leboha Dr. Yan Liu bakeng sa ho bala buka e ngotsoeng ka letsoho. Mosebetsi ona o tšehelitsoe ke National Institutes of Health Grants MH-67396 ho BJA, le DA-19627 le MH-58616 ho ZXW.

Mongolo o botlaaseng ba leqephe

Boitlhotlhollo ba Mohoeletsi: Ena ke faele ea PDF ea mongolo o ngotsoeng ka letsoho o sa amoheloang o amoheletsoeng bakeng sa ho hatisoa. Joaloka tšebeletso ho bareki ba rona re fana ka phetolelo ena ea pele ea mongolo o ngotsoeng ka letsoho. Mongolo o ngotsoeng ka letsoho o tla ba le ho kopitsa, ho kenya lihlopha le ho hlahloba bopaki bo hlahang pele o hatisoa ka mokhoa oa oona oa ho qetela. Ka kopo hlokomela hore nakong ea mekhoa ea tlhahiso ea lihlahisoa e ka fumanoa e ka amang litaba, le litsebiso tsohle tsa molao tse sebetsang koranteng e amanang le eona.

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