Nyob rau hauv XIX xyoo pua, lub microelement ntawm selenium tau pom los ntawm ib tug kws tshawb fawb Swedish thiab raug xam tias yog ib qho txaus ntshai heev. Xyoo, hauv kev tshawb fawb, raws li ib txwm, cov kev xav tau radical txawv, thiab thaum kawg, xyoo 1980, WHO pom cov selenium ua ib feem ntawm kev noj zaub mov zoo. Niaj hnub no peb paub tsis tsuas yog hais txog cov txiaj ntsim ntawm selenium, tab sis kuj yog qhov phem tshwm sim uas tsis muaj cov khoom noj uas muaj selenium ntawm peb lub rooj. Tag nrho cov no yog tam sim no ntau ntxaws.
Cov txiaj ntsig
Ua ntej tshaj plaws, kev noj cov khoom siv nrog selenium ua rau peb muaj kev tiv thaiv. Hauv cov duab, qhov no yog 77% tsawg dua qhov kev ua kom qhov tsis muaj zog thiab 47 feem pua tsawg dua lwm cov kab mob. Selenium yog ib qho protein nrog cov tshuaj tua kab mob kom txawj ntse. Selenium ua rau kom peb cov kab mob tsis muaj kab mob, kab mob, tiv thaiv kev txuam ntawm cov dawb radicals hauv lub cev.
Qhov no micronutrient yuav tiv thaiv UV hluav taws xob thiab ua xua rau tshuaj. Selenium yog koom tes rau hauv kev sib koom tes ntawm txhua cov tshuaj hormones, zoo li hauv feem ntau ntawm cov txheej txheem biochemical ntawm lub cev.
Cov khoom muaj selenyum yog ib qho tseem ceeb rau cov neeg plab hnyuv, vim hais tias selenium ua rau lub plab hnyuv siab, koom rau hauv qhov kev sib xyaw ntawm cov zaub mov noj qab haus huv microflora thiab pab tsim kev noj haus ntawm cov phab ntsa ntawm cov mucous membrane. Tsis tas li ntawd, selenium tiv thaiv qhov propagation ntawm pathogenic fungi, uas feem ntau yog cov txiv hmab txiv ntoo ntawm rotting thiab fermentation kev nyob rau hauv lub plab. Cov fungi cuam tshuam, piv txwv li, lub siab.
Rau cov poj niam cev xeeb tub selenium tseem ceeb tshaj rau lwm tus. Ua ntej, nws tiv thaiv qhov pib ntawm yug ntxov, tiv thaiv tus me nyuam hauv plab los ntawm kev yug me nyuam, nrog rau kev tuag thaum ntxov. Tus nqi ntawm selenium ntawm txoj kev noj haus ntawm niam laus yog nyob ntawm seb tus nqi ntawm cov kua mis.
Hauv cov khoom
Thiab tam sim no tus paradox: no ib, tag nrho cov lus, lo lus, selenium, peb xav tau tsuas yog 10 mus 200 micrograms ib hnub twg. Thaum muaj hnub nyoog, qhov kev xav tau ntawm selenium yuav tsum nce raws li qhov hnyav, piv txwv li, cov me nyuam mos thiab cov me nyuam me yuav tsum tau 10 μg ntawm selenium mus txog 10 lub hlis, thiab thaum muaj hnub nyoog nws yog 20 μg. Rau cov neeg laus cov txiv neej, cov koob txhaj tshuaj ntawm ib txoj kab hauv selenyum hauv cov khoom noj yog 70 μg, rau cov poj niam 55 μg. Thiab thaum cev xeeb tub thiab lactation, qhov ntau npaum li cas nce mus rau 200 mcg ib hnub twg.
Selenium yog ntau hauv cov khoom-nplooj siab, lub raum, lub ntsws, lub siab. Thiab selenium nyob hauv hiav txwv ntses thiab cov nqaij nruab deg - cod, herring, flounder, sardines, salmon, mackerel, tuna, shrimps , qwj nplais, cov pob zeb, cov qhws cij thiab feem ntau cov nqaij nruab deg.
Koj yuav tsum tau nrhiav selenium ceev, feem ntau nws muaj nyob rau hauv Brazil ceev - 1530 mc per 100 g. Tab sis txij li thaum koj twb paub txog kev siv tshuaj seleny, peb tsis xav kom koj noj Brazilian noob txiv ntau tshaj 20-30 g ib hnub. Selenium kuj muaj nyob rau hauv Greek ceev, txiv laum huab xeeb, txiv maj phaub.
Cov kab no tseem muaj peev xwm muab scooped los ntawm nqaij qaib qe, nqaij qaib mis, cheese. Yog tias koj nyiam noj zaub mov, nrhiav seldeum hauv cov txiv ntseej thiab txiv roj roj, bran, brewer cov poov xab, cov noob nplej, hmoov nplej thiab hmoov nplej, taum, pob, qej thiab cereals.
Overdose
Tab sis ua ntej peb hais tias cov khoom dab tsi muaj selenium, peb yuav tsum qhia tias selenium tseem yog tshuaj lom, tab sis tsuas yog siv ntau tshaj qhov ntsuas. Selenium los ntawm cov khoom noj tsis muaj tshuaj lom tau, vim tias koj lub cev yuav cheem koj yog tias koj mus rau qhov siab kawg nkaus.
Qhov nyiaj tsis muaj qhov twg los qhov twg los?
50 xyoo dhau los tsis muaj leej twg hais txog qhov tseem ceeb ntawm kev tsim nyog ntawm selenyum rau peb lub cev, los ntawm nws lub cev tsis muaj nqis. Cov lus teb yog yooj yim: cov neeg pom tias ib yam dab tsi uas ploj lawm thaum tsis muaj lawm. Txog thaum kawg tsis ntev cov av tau ntim nrog selenium, thiab niaj hnub no cov av txheej hauv lub ntiaj teb puas ntsoog thiab muaj ib qho yuav tsum tau tsim kom muaj cov tshuaj chiv, uas tsis txhawb lawv cov zaub mov txhua lub sijhawm.