Muviri wedu une marudzi maviri emafuta, anonzi mafuta ebrown newhite. Yekutanga inozivikanwawo sebrown mafuta uye ine basa rekuchengetedza tembiricha chaiyo yemuviri, pamwe nekushandiswa sehuni. Pane kudaro, mafuta machena ndiwo atinovenga tose kuti tive nawo rudo runobata. Mafuta ebrown anochengetwa munzvimbo dzakasiyana dzemuviri, dzakadai semutsipa, musana, kana itsvo; rinhi muviri unonzwa kutonhora inoita kuti nyama iyi ishandise shuga yeropa nemafuta kugadzira kupisa.
Asi rudzi urwu rwemafuta ane utano here?
Chikwata chevaongorori kubva kuRutgers University chakaitwa Chidzidzo mavakaona kuti mafuta ebrown anogonawo kubatsira kusefa kwemuviri uye kubvisa zvakakosha uye zvakakosha branched-chain amino acids (BCAAs) kubva muropa. Pakati peizvi pane leucine, isoleucine uye valine, yakanyatsobatana nekufutisa uye chirwere cheshuga kana zvakachengetwa muhuwandu.
ari BCAA Ivo vanowanikwa mune zvekudya zvakaita semazai, nyama, hove, huku nemukaka, asi kune zvakare vatambi vanosarudza kuidya nenzira yekuwedzera kuwedzera tsandanyama. Zviri pachena kuti zvinhu izvi zvinobatsira kunatsiridza metabolism uye kushanda yevatambi, asi a kunyanyisa kushandisa Inobatanidzwa nezviitiko zvekufutisa uye chirwere cheshuga. BCAA yekuwedzera inoitirwa avo vane inoshanda brown mafuta, asi inogona kukuvadza kune avo vasina rudzi urwu rwebrown mafuta (vakura, vakafutisa, kana vane chirwere cheshuga) sezvo vasingazove neyakafanana yekubvisa.
Zvavanotaura kubva muongororo iyi ndezvekuti rudzi urwu rwemafuta runogona kutidzivirira kubva kune kufutisa uye chirwere cheshuga, sezvo runoshanda zviri nani pane mafuta machena kubvisa aya amino acid. Zvisinei, tsvakurudzo yakawedzerwa inodiwa kuongorora kuti nei vamwe vanhu vaine rudzi urwu rwemafuta uye vamwe vasina, kana kuti inogona kushandiswa sei. Vaigona here kugadzira mishonga inowedzera huwandu mumuviri?
Iyo SLC25A44 protein ndiyo inotarisira zvese
Tsvagiridzo yakawana kuti protein nyowani, SLC25A44, ine basa rekudzora chiyero icho mafuta ebrown anobvisa amino acids kubva muropa uye anoashandisa kugadzira simba nekupisa. Kuwanikwa uku kwatora makore anopfuura makumi maviri kugadzirisa, kunyangwe masayendisiti aifungidzira kuvepo kweimwe mitochondrial transporter BCAA. Danho rinotevera nderekudzidza maitiro ekuita kuti rikwanise kubvisa akawanda BCAAs sezvinobvira nekuvandudza hutano hwemetabolism.
Nekudaro, vaongorori vachiri kuda kuziva kana kunyudzwa kweBCAAs nemafuta ebrown kuchigona kudzorwa nemamiriro ekunze, sekusangana nekutonhora kutonhora kana kudyiwa kwezvinonhuwirira, kana nemishonga.