Isiphumo se-selenium
Yemfuyo kunye nokufuya iinkukhu
1. Ukuphucula ukusebenza kwemveliso kunye nezinga lokuguqulwa kokutya;
2. Ukuphucula ukusebenza kokuzala kwakhona;
3. Ukuphucula umgangatho wenyama, amaqanda nobisi, kunye nokuphucula umxholo weselenium kwiimveliso;
4. Ukuphucula ukwenziwa kweeproteni zezilwanyana;
5. Ukuphucula amandla ezilwanyana okulwa noxinzelelo;
6. Lungisa iintsholongwane zamathumbu ukuze kugcinwe impilo yamathumbu;
7. Ukuphucula amajoni omzimba ezilwanyana…
Kutheni i-organic selenium ingcono kune-inorganic selenium?
1. Njengesongezo sangaphandle, ukufumaneka kwe-selenium cysteine (SeCys) kwi-bioavailability bekungaphantsi koko kwe-sodium selenite. (Deagen et al., 1987, JNut.)
2. Izilwanyana azikwazi ukuvelisa ii-selenoproteins ngqo kwi-SeCys zangaphandle.
3. Ukusetyenziswa kakuhle kweSeCys kwizilwanyana kufumaneka ngokupheleleyo ngokuguqulwa kwakhona kunye nokuhlanganiswa kweselenium kwindlela ye-metabolic nakwiiseli.
4. Idama le-selenium elisetyenziselwa ukugcina i-selenium ngokuzinzileyo kwizilwanyana linokufunyanwa kuphela ngokufaka ulandelelwano lokwenziwa kweeproteni eziqulethe i-selenium ngendlela ye-SeMet endaweni yeemolekyuli ze-methionine, kodwa ii-SeCys azinakusebenzisa le ndlela yokwenziwa.
Indlela yokufunxa i-selenomethionine
Ifunxwa ngendlela efanayo ne-methionine, engena kwinkqubo yegazi ngenkqubo yokumpompa i-sodium kwi-duodenum. Uxinzelelo aluyichaphazeli indlela efunxwa ngayo. Ngenxa yokuba i-methionine yi-amino acid ebalulekileyo, idla ngokufunxwa kakhulu.
Imisebenzi yebhayoloji ye-selenomethionine
1. Umsebenzi we-Antioxidant: I-Selenium liziko elisebenzayo le-GPx, kwaye umsebenzi wayo we-antioxidant ufezekiswa nge-GPx kunye ne-thioredoxin reductase (TrxR). Umsebenzi we-Antioxidant ngumsebenzi ophambili we-selenium, kwaye eminye imisebenzi yebhayoloji isekelwe kakhulu koku.
2. Ukukhuthaza ukukhula: Izifundo ezininzi ziye zabonisa ukuba ukongeza i-selenium ephilayo okanye i-selenium engaphiliyo ekutyeni kunokuphucula ukusebenza kokukhula kweenkukhu, iihagu, izilwanyana ezitya inyama okanye iintlanzi, njengokunciphisa umlinganiselo wokutya kwinyama kunye nokunyusa ubunzima bemihla ngemihla.
3. Ukuphucula ukusebenza kokuzala: Izifundo zibonise ukuba i-selenium inokuphucula ukuhamba kwesidoda kunye nenani lesidoda kwimbewu, ngelixa ukunqongophala kwe-selenium kunokunyusa izinga lokukhubazeka kwesidoda; Ukongeza i-selenium ekutyeni kunokunyusa izinga lokuchumisa kweemazi, ukwandisa inani leentsana, ukwandisa izinga lokuvelisa amaqanda, ukuphucula umgangatho weqokobhe lamaqanda kunye nokunyusa ubunzima beqanda.
4. Ukuphucula umgangatho wenyama: Ukwanda kwe-lipid oxidation yeyona nto iphambili ekuwohlokeni komgangatho wenyama, umsebenzi we-selenium antioxidant yeyona nto iphambili ekuphuculeni umgangatho wenyama.
5. Ukususa ubuthi emzimbeni: Izifundo zibonise ukuba i-selenium inokuyichasa kwaye inciphise imiphumo enobungozi ye-lead, i-cadmium, i-arsenic, i-mercury kunye nezinye izinto eziyingozi, i-fluoride kunye ne-aflatoxin.
6. Eminye imisebenzi: Ukongeza, i-selenium idlala indima ebalulekileyo ekukhuseleni amasosha omzimba, ukugcinwa kwe-selenium, ukukhutshwa kweehomoni, umsebenzi we-enzyme yokugaya ukutya, njl.
Ixesha lokuthumela: Feb-28-2023
