Dopamine ineurotransmitter inonakidza inoita basa rakakosha munzvimbo dzepfungwa dzemubayiro nedzekunakidzwa. Inowanzonzi kemikari "inonzwa zvakanaka", inokonzera maitiro akasiyana-siyana emuviri nepfungwa anokanganisa mafungiro edu, kukurudzira, uye kunyange maitiro ekupindwa muropa.
Dopamine, inowanzonzi neurotransmitter "inonzwa zvakanaka", yakatanga kuwanikwa muma1950 nemusayendisiti wekuSweden Arvid Carlsson. Inorongwa se neurotransmitter yemonoamine, zvinoreva kuti ikemikari inotakura zviratidzo pakati pemasero etsinga. Dopamine inogadzirwa munzvimbo dzinoverengeka dzeuropi, kusanganisira substantia nigra, ventral tegmental area, uye hypothalamus yeuropi.
Basa guru redopamine nderekutumira zviratidzo pakati pema neuron uye kukanganisa mabasa akasiyana-siyana emuviri. Inofungidzirwa kuti inotonga kufamba, mhinduro dzemanzwiro, kukurudzira, uye manzwiro emufaro nemubairo. Dopamine inoitawo basa rakakosha mumabasa akasiyana-siyana ekufunga akadai sekudzidza, kurangarira, uye kutarisisa.
Kana dopamine ikaburitswa munzira dzeuropi dzinopa mubayiro, inounza manzwiro ekufara kana kugutsikana.
Munguva yekufara uye mubairo, tinogadzira dopamine yakawanda, uye kana huwandu hwacho hwakaderera zvakanyanya, tinonzwa tisina simba uye tisina simba.
Pamusoro pezvo, hurongwa hwemibairo muuropi hwakabatana zvakanyanya nedopamine. Basa rema neurotransmitters nderekusimudzira manzwiro ekufara uye kusimbiswa, nokudaro zvichigadzira kurudziro. Zvinotisunda kuzadzisa zvinangwa zvedu uye kutsvaga mibairo.
Dopamine inogadzirwa munzvimbo dzakawanda dzeuropi, kusanganisira substantia nigra nenzvimbo ye ventral tegmental. Nzvimbo idzi dzinoshanda semafekitori edopamine, dzichigadzira nekuburitsa iyi neurotransmitter muzvikamu zvakasiyana zveuropi. Kana yaburitswa, dopamine inosunga kune mareceptor chaiwo (anonzi dopamine receptors) ari pamusoro pesero rinogamuchira.
Kune mhando shanu dzemareceptor edopamine, ane mazita ekuti D1 kusvika D5. Rudzi rwemareceptor ese rwunowanikwa munzvimbo dzakasiyana dzeuropi, zvichiita kuti dopamine ive nemigumisiro yakasiyana. Kana dopamine yakabatana nereceptor, inokurudzira kana kudzivirira mashandiro esero rinogamuchira, zvichienderana nerudzi rwereceptor yayakabatanidzwa nayo.
Dopamine inoita basa guru mukudzora kufamba kwemuviri uri mudumbu. Munzira iyi, dopamine inobatsira kudzora nekubatanidza mashandiro emhasuru.
Mu prefrontal cortex, dopamine inobatsira kudzora ndangariro yekushanda, zvichitibvumira kubata nekushandisa ruzivo mupfungwa dzedu. Inobatsirawo mukuita kwekutarisa nekuita sarudzo. Kusawirirana mumazinga edopamine mu prefrontal cortex kwakabatana nemamiriro ezvinhu akadai se attention deficit hyperactivity disorder (ADHD) uye schizophrenia.
Kuburitswa uye kudzorwa kwedopamine kunodzorwa zvakasimba neuropi kuti irambe yakaringana uye ive nechokwadi chekuti mashandiro ayo akajairika. Sisitimu yakaoma yemhinduro, inosanganisira mamwe ma neurotransmitters nenzvimbo dzeuropi, inodzora huwandu hwedopamine.
Dopamine chinhu chinotumirwa nemakemikari, kana kuti neurotransmitter, muuropi chinotakura zviratidzo pakati pemasero etsinga. Chinoita basa rakakosha mumabasa akasiyana-siyana europi, kusanganisira kudzora mafambiro, manzwiro, uye mhinduro dzemanzwiro, zvichiita kuti ive chinhu chakakosha chehutano hwedu hwepfungwa. Zvisinei, kusaenzana kwemazinga edopamine kunogona kutungamira kumatambudziko akasiyana-siyana ehutano hwepfungwa.
●Tsvagiridzo inoratidza kuti vanhu vane kuora mwoyo vanogona kunge vaine dopamine shoma munzvimbo dzakasiyana dzeuropi, zvichiita kuti vaderedze chido uye mufaro mumabasa ezuva nezuva.
●Kusagadzikana kwehuwandu hwedopamine kunogona kukonzera matambudziko ekuzvidya mwoyo. Kuwedzera kwekushanda kwedopamine mune dzimwe nzvimbo dzeuropi kunogona kukonzera kuzvidya mwoyo kwakanyanya uye kusagadzikana.
●Kushanda zvakanyanya kwedopamine munzvimbo dzakasiyana dzeuropi kunofungidzirwa kuti kunokonzera zviratidzo zve schizophrenia, zvakaita sekuona zvinhu zvisipo uye kufungidzira.
●Zvinodhaka nemaitiro ekupindwa muropa zvinowanzowedzera huwandu hwedopamine muuropi, zvichikonzera manzwiro emufaro uye anogutsa. Nekufamba kwenguva, uropi hunozovimba nezvinhu izvi kana maitiro ekuburitsa dopamine, zvichiita kuti munhu apindwe muropa.
Mubvunzo: Mishonga inogona kushandiswa here kudzora mazinga edopamine?
A: Ehe, mimwe mishonga, yakaita sedopamine agonists kana dopamine reuptake inhibitors, inoshandiswa kurapa zvirwere zvine chekuita nekusashanda zvakanaka kwedopamine. Mishonga iyi inogona kubatsira kudzorera dopamine balance muuropi uye kuderedza zviratidzo zvine chekuita nemamiriro ezvinhu akadai seParkinson's disease kana depression.
Mubvunzo: Munhu angachengetedza sei dopamine yakaringana?
A: Kuramba uine mararamiro ane hutano, kusanganisira kurovedza muviri nguva dzose, kudya kunovaka muviri, kurara zvakakwana, uye kudzora kushushikana, zvinogona kubatsira mukugadzirisa dopamine zvakanyanya. Kuita zvinhu zvinonakidza, kuisa zvinangwa zvinogoneka, uye kudzidzira kufunga kunogonawo kubatsira kuchengetedza dopamine yakaringana.
Chiziviso: Chinyorwa ichi ndecheruzivo chete uye hachifanirwe kutorwa sechinopa mazano ekurapa. Gara uchibvunza nyanzvi yehutano usati washandisa chero mishonga yekuwedzera kana kuchinja maitiro ako ehutano.
Nguva yekutumira: Gunyana-15-2023


