Zotsatira zake zikuwonetsa momwe chakudya chimasinthira kuyendetsa kwa ubongo kuti ndidye
Wolemba Laura Sanders - Juni 27, 2019
Pakadutsa milungu ingapo pakudya zamafuta kwambiri, maselo ena adawonetsa kuchepa kwa gawo la chidwi cha ubongo mu mbewa, zotsatira zomwe zimanenanso kuti kudya kwamafuta kumalimbikitsa kudya kwambiri.
Chakudya chopatsa thanzi m'mimba chimatha kukhazikitsa ubongo womwewo.
Pambuyo pa mbewa kudya chakudya chamafuta kwa milungu iwiri yokha, maselo m'mitsempha mwawo omwe amatumiza chizindikiro choti “musadye” anali chete kuposa omwe ali ndi mbewa zomwe sizinadye mafuta olemera kwambiri, ofufuza ati mu June 28 Science. Zotsatirazi zimathandizira kusokoneza ubale wovuta pakati pa chakudya ndi chilakolako chofuna kudya, chomwe chimatha kusefuka anthu akudya kwambiri.
Chifukwa chakudya ndi chofunikira kuti munthu apulumuke, ubongo wakonza zopanga - kuchuluka kwa njira zokomera chakudya kuti nyama zizidya mokwanira. Wasayansi ya Neuroscient Garret Stuber wa University of Washington ku Seattle adalimbikira gawo limodzi laubongo lomwe limadziwika kuti limakhudzana ndi machitidwe a kudya.
Amatchedwa kuti lateroth hypothalamus, ubongo wamtunduwu uli ndi maselo osiyanasiyana. Stuber ndi mnzake adayang'ana machitidwe a jini m'maselo amodzi kumeneko, ndipo adapeza kuti gulu limodzi, lotchedwa glutamatergic nerve cell, lidawonetsa kusintha kwakukulu komwe majini amagwira ntchito pomwe gululi likuyerekeza mbewa zotsika ndi mbewa zonenepa.
Poyambirira adanenanso kuti maselo a glutamatergic awa amakhala ngati akuthyoka pakudya: Maselo atatsekedwa mwangozi kuti asaulule, mbewa anadya zakudya zambiri ndikulemera kwambiri. Koma sizinali zodziwikiratu momwe maselowa amathandizira pakusintha kwachilengedwe kuchokera ku kunenepa kupita ku kunenepa kwambiri.
"Kunenepa kwambiri sikuchitika mwachangu," akutero Stuber, yemwe adagwira ntchito ina ku University of North Carolina ku Chapel Hill. Kuti adziwe kuti kusinthaku kukuchitika pang'onopang'ono, ofufuzawo adayamba kudyetsa mbewa zamafuta kwambiri, kwinaku akugwiritsa ntchito maikulosikopu kuyang'ana kuthekera kwa maselo a glutamatergic kuyatsa ma sign.
Pakadutsa milungu iwiri, ngakhale mbewazo zisanatulutse, maselo amitsempha anali atawonetsa kale zochita zambiri, mzochita zawo zokha komanso nyama itapatsidwa madzi akumwa. Kuchepetsa kumeneko kunapitilirabe nyama zikakulirakulira, mpaka milungu ingapo ya 12, ofufuzawo adapeza. Stuber akuti: "Ntchito za m'maselozi zikuyenda pansi ngati chakudya chamafuta ambiri," akutero Stuber.
Zotsatira zake zikutanthauza kuti "kuchepa kwa maselo amenewa kukuchotsa vuto pakudya ndi kunenepa kwambiri," anatero Stephanie Borgland wa University of Calgary ku Canada, yemwe adalemba ndemanga yogwirizana m'magazini yomweyo ya Science.
Ofufuzawo sakudziwa ngati maselo amenewa angayambenso kuchita bwino ngati mbewa zitha kudya zakudya zamafuta kwambiri komanso kunenepa. Kungakhale kovuta kuti ukayang'ane maselo omwewo kwa milungu kapena miyezi ingatenge kuti mbewa zizitha kusintha matupi awo, Stuber akuti.
Ngakhale zotsatilazi zimapereka zitsanzo zomveka bwino za maselo omwe amawongolera machitidwe odyetsa makoswe, sizovuta kunena ngati maselo amanjenje ofanitsanso omwe amagwira ntchito mwa anthu. Kuyesa kwa maubongo kwawonetsa kuti gawo lomwelo la ubongo, hypothalamus, limaphatikizidwa pamene anthu akusuntha pakati panjala ndikukhala okhuta.
Stuber akuti ngakhale maselo awa mu mbewa amawoneka kuti amakhudzidwa kwambiri ndi zakudya zamafuta kwambiri, kunenepa kwambiri kumakhudza anthu ambiri m'maselo. "Izi mwina zikuchitika mu ubongo wonse," akutero. Kuzindikira kuyanjana koteroko kumatha kuloza njira zabwino zowongolera zilakolako zamunthu.