November 15th, 2011 ka Neuroscience
Phuputso e ncha e fana ka maikutlo a hore ho kopanela liphate nakong ea bocha ho ka ba le liphello tse mpe ka nako e telele 'meleng le maikutlong ho fihlela motho e moholo, mohlomong hobane mosebetsi o etsahala ha tsamaiso ea methapo e ntse e tsoela pele.
Le hoja lipatlisiso li sebelisitse liphoofolo tsa laboratori, liphuputso li fana ka boitsebiso bo ka sebelisang ho utloisisa nts'etsopele ea batho ba thobalano.
Bafuputsi ba ile ba kopanya li-hamster tsa basali ba baholo le li-hamsters tsa banna ha banna ba ne ba le matsatsi a 40, ho lekana le lilemo tsa bohlankana. Ba fumane hore liphoofolo tsena tse tona tse nang le boiphihlelo ba thobalano pele ho nako hamorao li bonts'a matšoao a mangata a boits'oaro bo ts'oanang le khatello ea maikutlo le mmele o tlase, lisele tse nyane tsa ho ikatisa le liphetoho liseleng tsa boko ho feta li-hamster tse ileng tsa pepesetsoa thobalano hamorao bophelo kapa ho se thobalano ho hang.
E 'ngoe ea lisele tse fetotsoeng liphoofolong tse neng li kopanela liphate nakong ea bocha li ne li e-na le litekanyetso tse phahameng tsa liphatsa tsa lefutso tse amanang le ho ruruha ha likopi tsa bona tsa boko le mekhoa ea lik'hamera tse sa rarahaneng haholo likarolong tsa bohlokoa tsa boko.
Ba boetse ba bonts'itse matšoao a matla a ho itšireletsa mafung litekong tsa kutlo, ba fana ka maikutlo a hore boits'ireletso ba 'mele ba bona bo maemong a ho itokisa leha ba se na tšoaetso - sesupo sa bothata ba ho itšireletsa mafung.
Motsoako oa likarabo tsa 'mele ho motho e moholo ha se kotsi, empa fana ka maikutlo a hore thobalano nakong ea nts'etsopele ea sistimi ea methapo e ka hlalosoa ke' mele e le khatello ea maikutlo, bafuputsi ba re.
"Ho ba le boiphihlelo ba thobalano nakong ena, qalong ea bophelo, ho na le litlamorao," ho boletse John Morris, mongoli-'moho oa thuto le seithuti sa bongaka sa psychology Univesithing ea Ohio State. "E ka ama ts'oaetso ea banna maemong a khatello ea maikutlo, hape e ka pepesetsa banna keketseho e itseng ea ho ruruha le ho ba batho ba baholo."
Morris o hlahisitse lipatlisiso Labobeli (11/15) kopanong ea selemo le selemo ea Mokhatlo oa Neuroscience Washington, DC O ile a etsa thuto le Zachary Weil, moprofesa ea thusang lipatlisiso, le Randy Nelson, moprofesa le molulasetulo, ka bobeli ba Lefapha la Neuroscience la Naha ea Ohio.
Lipatlisiso tse fetileng li atisa ho hlahloba liphello tsa ho kopanela liphate lilemong tsa bocha ho basali ba bacha, 'me mabaka a utloahalang a lokela ho etsoa ho batho e le ho hlahloba boitšoaro bo bocha. Bo-rasaense ba Ohio State ba ile ba sebelisa hamsters, e nang le ho tšoana le physiologic ho batho, ho ithuta ka ho toba kamoo 'mele o arabelang kateng liketsong tsa thobalano pele ho bophelo.
"Ho na le nako ea nts'etsopele ea sistimi ea methapo ha lintho li fetoha kapele haholo, mme karolo ea liphetoho tseo ke litokisetso tsa boits'oaro ba batho ba baholo ba ho ikatisa le physiology," ho boletse Weil. "Ho na le monyetla oa hore liphihlelo le matšoao a tikoloho a ka ba le litlamorao tse kholo haeba li ka etsahala pele tsamaiso ea methapo e lula ho fihlela e eba motho e moholo."
Bo-rasaense ba ile ba sebetsa ka lihlopha tse hlano tsa hamsters tsa banna: lihlopha tse peli tse neng li kopanela liphate lilemong tsa 40 'me li ile tsa hlahlojoa matsatsing a 40 le matsatsi a 80 ka mor'a ho pepesa thobalano, lihlopha tse peli tse neng li e-na le batho ba baholo lilemong tsa 80 li bile li hlahlojoa ka nako e le' ngoe nako, le hamsters tse sa kang tsa kopanela liphate. Li-Hamster li fihla bocha nakong ea lilemo tsa 21.
Bafuputsi ba ile ba beha mohlankana le mohlankana e moholo maemong a fapaneng le li-hamster tsa basali tse chesang ka lihora tse tšeletseng 'me ba tlaleha ho kopana ha bona ho netefatsa hore liketso tsa thobalano li etsahetse.
Liphoofolo li ne li e-na le liteko tse sa tšoaneng ha li se li se li le batho ba baholo. Li ne li behiloe ka mahlaseli ka mekhoa ea ho hlahloba libaka tse bulehileng kapa ho ipata ka thōko; ba khethileng ho se hlahlobisise ba ne ba bontša matšoao a matšoenyeho. Liphoofolo tse kenngoa ka metsing li ne li bontša matšoao a boitšoaro bo boima joaloka ho tlohela ho sesa ka matla.
"Lihlopha tsena ka bobeli tsa li-hamster tse kopanelang liphate li bontšitse keketseho ea boitšoaro bo kang ba ho tšoenyeha ha bo bapisoa le sehlopha sa taolo, empa keketseho ea karabelo e ts'oanang le khatello e ne e totobetse sehlopheng sa bacha ba kopanelang liphate," ho boletse Morris.
Tlhahlobo ea boits'oaro ba 'mele ea ho itšireletsa mafung e fana ka maikutlo a hore hamsters le liphihlelo tsa bocha tsa thobalano li kotsing ea ho ruruha ho feteletseng e le karolo ea karabo ea' mele ea ho itšireletsa mafung. Ho phaella moo, li-hamsters tsena li ne li e-na le li-cytokine tse ngata tse nang le bothata ba ho ruruha ho thoeng ke interleukin-1, kapa IL-1, liphatleng tsa bona tsa boko ho feta tse ling tsa hamster. IL-1 ke e 'ngoe ea manģosa a' maloa a lik'hemik'hale a bakang ho ruruha, hangata ho loantša tšoaetso ea tšoaetso kapa ea ho lokisa; ha e potoloha ntle le tšoaetso ea ho loantša, 'mele o utloa ho ruruha ho feteletseng.
Ponahalo ena e phahameng ea liphatsa tsa lefutso e bonoe libakeng tsa boko tse tsejoang hore li ke ke tsa hola ho fihlela motho e moholo - ho kenyeletsoa amygdala, prefrontal cortex, hippocampus le striatum. Libakeng tse ling tsa boko, liphoofolo tse nang le boiphihlelo ba thobalano ba lilemong tsa bocha le tsona li bontšitse ho rarahana ho fokolang ho li-dendrites, likarolo tsa makala tse tsoang liseleng tsa methapo tse nang le li-synapses, tse isang boko bokong ho tsoa 'meleng kaofela.
Ntle le lipatlisiso tse ling, bo-rasaense ha ba tsebe hantle hore na liphapang tsena tsa boko li bolelang. Empa hobane li bonoa haholo-holo liphoofolong tse ileng tsa pepesetsoa thobalano bocheng, borasaense ba re, ho na le kamano e hlakileng le ketsahalo eo. "Ho kopanela liphate ho etsa ntho e 'ngoe ea' mele eo lisele tsena li e hlalosang le ho li araba ka li-dendrites tse khuts'oane," ho boletse Weil.
Qetellong, li-hamsters tse neng li e-na le likamano tsa botona le botšehali ba lilemong tsa bocha li bile le palo e fokolang ea 'mele hammoho le ho fokotseha ha lisebelisuoa tsa ho ikatisa tse fumanehang, ho akarelletsa le li-vesicles tsa seminal, vas deferens le epididymis, e le batho ba baholo.
"Sena se fana ka maikutlo ho rona hore mohlomong ts'ebetso ena e etsa hore liphoofolo le tsona li be le karabelo e mpe ea ho ikatisa," ho boletse Morris.
E fanoe ke Univesithi ea Ohio State
Ho kopanela liphate lilemong tsa bocha ho amana le 'mele oa motho e moholo, ho tšoenyeha maikutlong, thutong ea liphoofolo. ” La 15 Pulungoana 2011.
http://medicalxpress.com/news/2011-11-adolescent-sex-linked-adult-body.html
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