Selenium ndi chidule chomwe chimagawidwa ngati micronutrient, kutanthauza kuti mumangofunika ndalama zochepa kuti mutenge thupi lanu. Selenium ikhoza kupezeka kumalo ena monga madzi ndi nthaka. Ikhozanso kupezeka mu zakudya zosiyanasiyana komanso zakudya zina monga nyama, bowa, nsomba, mtedza, ndi mbewu. Selenium imatchulidwanso ngati zakudya zofunikira, zomwe zikutanthauza kuti zimayenera kupezeka ku zakudya zomwe timadya kuti tiziphatikize mu thupi lathu.
Selenium imagwira ntchito ndi ma antizyidant enzymes mu thupi lomwe limagwira ntchito mu kukula kwa magulu. Kafukufuku wina apeza kuti selenium ingathandize kuteteza makondomu ena, matenda aakulu, komanso kuwonjezera chitetezo chanu cha mthupi. Kafukufuku wina wochepa amasonyeza kuti selenium yochuluka kwambiri kapena yochuluka ingakhudze thanzi lanu, ndipo zimapangitsa kuti ziwalo zina zamakono anu ziwonjezeke.
Momwe Selenium imakhudzira Cholesterol
Kafukufuku wowerengeka okha ndi omwe awonetsedwa zotsatira za selenium pa mitsempha ya cholesterol ndi triglyceride. Maphunzirowa amayeza "selenium status", yomwe imatanthauza selenium m'magazi anu. Izi zikhoza kusintha mosiyanasiyana malinga ndi zifukwa zosiyanasiyana, koma makamaka kuchokera ku zowonjezeramo zomwe zimakhala ndi selenium kapena chakudya chanu.
Mkhalidwe wa Selenium umasiyananso kwambiri malinga ndi madera a dziko lapansi. Mwachitsanzo, anthu okhala ku United States ndi Canada ali ndi udindo wotchuka wa selenium, pamene anthu a ku Ulaya ali ndi udindo wotsika wa selenium.
Malamulo apamwamba ndi otsika a selenium amapezeka mwa anthu okhala ku China. Kafukufuku wakale asonyeza kuti anthu omwe ali ndi chikhalidwe cha selenium ali pachiopsezo chachikulu cha matenda a mtima. Kumbali ina, kukhala ndi miyeso yapamwamba ya selenium kungachititse kuti m'magulu anu amadzimadzi akhale okwera kwambiri, makamaka ngati muli kale kwambiri m'magazi anu.
Mu zina mwa maphunzirowa, anthu omwe ali ndi udindo wa selenium anali ndi makina ambiri a mafuta m'thupi komanso a LDL cholesterol. Mafuta onse a cholesterol anawonjezeka ndi 8 peresenti ndipo osati ya HDL cholesterol chinawonjezeka ndi pafupifupi 10 peresenti. Kuwonjezera apo, triglycerides nawonso anawonjezeka ndi 10 peresenti poyerekezera ndi anthu omwe anali ndi malo otsika a selenium. Komabe, kafukufuku wina adaonetsa ubale wofanana ndi U pakati pa selenium ndi triglycerides kutanthawuza kuti anthu omwe ali ndi chikhalidwe chapamwamba ndi chotsika cha selenium anali ndi zigawo zapamwamba za triglyceride.
Mufukufuku wina, adatchulidwa kuti anthu omwe ali ndi malo otsika a selenium akutenga mphamvu ya selenium yomwe ili pakati pa 100 ndi 200 mcg) adadzichepetsa modzichepetsa mafuta a kolesteroloni omwe alibe mphamvu ya mafuta m'thupi. Mgulu lomweli, kutenga 300 mg ya selenium kunachititsa kuti maselo a HDL apitirire pang'ono, koma sizinakhudzirepo mbali zina zamadzimadzi. A
Komabe, palinso maphunziro ena omwe sasonyeza ubwenzi pakati pa selenium ndi mapiritsi.
Sindidziŵika momwe selenium ingakhudzire lipids. Lingaliro limodzi ndi lakuti selenium ikhoza kuphatikiza ndi mapuloteni ena m'thupi lomwe limagwirizana ndi lipids ndi lipoproteins. Zimaganiziranso kuti selenium ingathandize kupewa chitukuko cha oxidized lipoproteins chomwe chingalimbikitse mapangidwe a atherosclerosis.
Kodi Muyenera Kutenga Selenium Kuti Mukhale ndi Mapiri Okhala ndi Thanzi Labwino?
Ngakhale zina mwa zotsatira zomwe zawonekera pakalipano, pakufunika maphunziro ambiri kuti aone zotsatira za selenium pa lipids ndi thanzi labwino, chifukwa izi zikuwoneka mosiyanasiyana malinga ndi kuchuluka kwa selenium. Choncho, selenium zowonjezereka siziyenera kutengedwa kuti zichepetse lipids. Selenium ikhoza kukhala poizoni pazikuluzikulu, ndipo sayenera kutengedwa monga chowonjezera kupatula ngati atayikidwa ndi wothandizira zaumoyo wanu. Chifukwa selenium imapezeka mu zakudya ndipo imafunika pang'onopang'ono, potsatira chakudya chamagulu, chabwino kwambiri, chiyenera kutsimikizira kuti mukupeza mchere wofunika kwambiri.
Zotsatira:
> Bleys J, Navas-A, A, Amakondweretsa S et al. Seramu selenium ndi serum lipids ku US akuluakulu. Am J Clin Nutr 2008; 88: 416-423.
> Laclaustra M, Wodabwitsa S, Navas-Acien A et al. Chikhalidwe cha Selenium ndi serum lipids ku akuluakulu a ku US: Kafukufuku Wowunika za Nthenda za Zaumoyo ndi Zakudya za Nutrition (NHANES) 2003-2004. Atherosclerosis 2010; 210: 643-648.
> Rayman MP. Selenium ndi thanzi laumunthu. Lancet 2012; 379: 1256-1268.
> Rayman MP, Wosangalatsa, S, Griffin BA ndi, Ann Int Med 2011; 154: 656-665.
> Amakondweretsa S, Tabak AG, Guallar E, et al. Mkhalidwe wa Selenium ndi magazi lipids: vuto la mtima m'maphunziro aang'ono a zophunzira. J Int Med 2011; 270: 469-477.