I-A1 vs. A2 Milk - Ngaba ibalulekile?

Umxholo

• Athetha ntoni la magama?
• Iingxelo ezimbi malunga ne-A1 protein
• Uhlobo lwe-1 yeswekile
• Isifo sentliziyo
• Isifo sokufa kweentsana ngesiquphe
• Autism
• Ukucola impilo
• Umgca wezantsi

Iziphumo zobisi kwezempilo zixhomekeka kuhlobo lwenkomo evela kuyo.

Okwangoku, ubisi lwe-A2 luyathengiswa njengokhetho olusempilweni kunobisi oluqhelekileyo lwe-A1.

Abaxhasi bathi i-A2 inezibonelelo ezininzi zempilo kwaye kulula kubantu abanobunzima bokunganyamezeli kubisi ukwetyisa.

Eli nqaku lithathela ingqalelo ukujonga isayensi emva kobisi lwe-A1 kunye ne-A2.

Athetha ntoni la magama?

Icasein lelona qela likhulu leeprotein kubisi, ezenza malunga neepesenti ezingama-80 zepesenti yeeproteni.

Zininzi iintlobo zeecasin kubisi. I-Beta-casein yeyona yesibini ixhaphakileyo kwaye ikhona ubuncinci kwiifom ezili-13 ezahlukeneyo ().

Ezona fom zixhaphakileyo zezi:

• A1 beta-casein. Ubisi oluvela kwiintlobo zeenkomo ezivela kumantla eYurophu luphezulu kakhulu kwi-A1 beta-casein. Ezi ntlobo ziquka iHolstein, iFriesian, iAyrshire, kunye neBritish Shorthorn.
• A2 beta-casein. Ubisi oluphezulu kwi-A2 beta-casein lufumaneka ikakhulu kwiintlobo ezavela kwiiChannel Islands nakumazantsi eFrance. Oku kubandakanya iinkomo zeGuernsey, iJersey, iCharolais, kunye neLimousin (,).

Ubisi oluqhelekileyo luqukethe zombini i-A1 kunye ne-A2 beta-casein, kodwa ubisi lwe-A2 luqukethe i-A2 beta-casein kuphela.

Olunye uphononongo lubonisa ukuba i-A1 beta-casein inokuba yingozi kwaye i-A2 beta-casein lukhetho olukhuselekileyo.

Yiyo ke loo nto kukho ingxoxo esidlangalaleni nakwisayensi ngezi ndidi zimbini zobisi.

Ubisi lwe-A2 luveliswa kwaye luthengiswe yiNkampani ye-A2 Milk kwaye ayinayo i-A1 beta-casein.

Ubisi lwe-A1 kunye ne-A2 luqulathe iintlobo ezahlukeneyo zeprotein ye-beta-casein. Olunye uphononongo lubonisa ukuba ubisi lwe-A2 lunokuba sempilweni kwezi zimbini.

Iingxelo ezimbi malunga ne-A1 protein

I-Beta-casomorphin-7 (BCM-7) yipeptidi ye-opioid ekhutshwe ngexesha lokwetyiswa kwe-A1 beta-casein (, 4).

Yisizathu sokuba abanye abantu bakholelwe ekubeni ubisi oluqhelekileyo alunasempilweni kunobisi lwe-A2.

Amaqela ambalwa ophando acebisa ukuba i-BCM-7 inokunxulunyaniswa nohlobo 1 lweswekile, isifo sentliziyo, ukufa kweentsana, i-autism, kunye neengxaki zesisu (,,,).

Ngelixa i-BCM-7 inokuchaphazela inkqubo yakho yokwetyisa, akukacaci ukuba i-BCM-7 ifunxwa njani egazini lakho.

Izifundo azifumananga i-BCM-7 egazini labantu abadala abasempilweni abasela ubisi lweenkomo, kodwa iimvavanyo ezimbalwa zibonisa ukuba i-BCM-7 inokubakho kwiintsana (,,).

Ngelixa i-BCM-7 iphandwe kakhulu, iziphumo zayo zempilo zihlala zingacacanga.

Uhlobo lwe-1 yeswekile

Uhlobo lwe-1 yeswekile lubonwa ngabantwana kwaye lubonakaliswa kukungabikho kwe-insulin.

Izifundo ezininzi zibonisa ukuba ukusela ubisi lwe-A1 ngexesha lobuntwana kwandisa umngcipheko wohlobo lweswekile 1 (,,,).

Nangona kunjalo, ezi zifundo ziqwalaselwe. Abakwazi ukungqina ukuba i-A1 beta-casein ibangela uhlobo lweswekile-kuphela ukuba abo bafumana uninzi lwayo basemngciphekweni omkhulu.

Ngelixa ezinye izifundo zezilwanyana zingafumananga mahluko phakathi kwe-A1 kunye ne-A2 beta-casein, ezinye zibonisa ukuba i-A1 beta-casein inokuba neziphumo zokhuselo okanye ezimbi kuhlobo lwe-1 yeswekile (,,,).

Ukuza kuthi ga ngoku, akukho zilingo zonyango ziye zaphanda isiphumo se-A1 beta-casein kuhlobo lwe-1 yeswekile.

Isifo sentliziyo

Izifundo ezibini zokujonga ukujonga ubisi lwe-A1 kumngcipheko wesifo sentliziyo (,).

Olunye uvavanyo kwimivundla lubonise ukuba i-A1 beta-casein inyuse ukwakhiwa kwamafutha kwimithambo yegazi eyonzakeleyo. Olu lwakhiwo lwalusezantsi kakhulu xa imivundla itya i-A2 beta-casein ().

Ukuqokelelwa kwamafutha kunokubangela ukuvaleka kwemithambo yegazi kwaye kubangele isifo sentliziyo. Okwangoku, ukubaluleka komntu kweziphumo kuxoxiwe ngako ().

Ukuza kuthi ga ngoku, izilingo ezimbini ziphande iziphumo zobisi lwe-A1 kwizifo ezinesifo sentliziyo kubantu (,).

Kwisifundo esinye kubantu abadala abali-15 abasemngciphekweni omkhulu wesifo sentliziyo, akukho ziphumo zibalulekileyo ziye zabonwa. I-A1 kunye ne-A2 zineempembelelo ezifanayo ekusebenzeni kwemithambo yegazi, uxinzelelo lwegazi, amafutha egazi, kunye neempawu zokukrala ().

Olunye uphononongo alufumananga mahluko ubonakalayo kwiziphumo ze-A1 kunye ne-A2 casein kwi-cholesterol yegazi ().

Isifo sokufa kweentsana ngesiquphe

Isifo sokufa kweentsana ngequbuliso (i-SIDS) sesona sizathu sokufa kweentsana ezingaphantsi kweenyanga ezili-12 ubudala.

I-SIDS kukufa okungalindelekanga kosana ngaphandle kwesizathu ().

Abanye abaphandi bacinge ukuba i-BCM-7 ingabandakanyeka kwezinye iimeko ze-SIDS ().

Olunye uphononongo lufumene amanqanaba aphezulu e-BCM-7 egazini leentsana ezayeka okwethutyana ukuphefumla ngexesha lokulala. Le meko, eyaziwa ngokuba yi-apnea yokulala, idibene nomngcipheko okhulayo we-SIDS ().

Ezi ziphumo zibonisa ukuba abanye abantwana banokuba novakalelo kwi-A1 beta-casein efumaneka kubisi lwenkomo. Nangona kunjalo, ukuqhubeka kwezifundo kuyafuneka ngaphambi kokuba kufikelelwe kwisigqibo esomeleleyo.

Autism

Autism yimeko yengqondo ebonakaliswa kukungaziphathi kakuhle ekuhlaleni kunye nokuziphatha okuphindaphindayo.

Kwithiyori, iipeptides ezinje nge-BCM-7 zinokudlala indima kuphuhliso lwe-autism. Nangona kunjalo, izifundo azixhasi zonke iindlela ezicetywayo (,,).

Olunye uphononongo kwiintsana lwafumana amanqanaba aphezulu e-BCM-7 kolo lubisi lweenkomo londliweyo xa kuthelekiswa nalawo ancanciswa ibele. Ngokukodwa, amanqanaba e-BCM-7 ehle ngokukhawuleza kwezinye zeentsana ngelixa ehlala ephezulu kwabanye.

Kulabo bagcine la manqanaba aphezulu, i-BCM-7 yayanyaniswa ngamandla nokungakwazi ukwenza izicwangciso nokwenza izinto ().

Olunye uphononongo lubonisa ukuba ukusela ubisi lweenkomo kunokuzenza mandundu iimpawu zokuziphatha kubantwana abane-autism. Kodwa ezinye izifundo azifumananga mpawu kwindlela yokuziphatha (,,).

Ukuza kuthi ga ngoku, akukho zilingo zomntu ziphande ngokukodwa iziphumo zobisi lwe-A1 kunye ne-A2 kwiimpawu ze-autism.

Izifundo ezimbalwa zibonisa ukuba i-A1 beta-casein kunye ne-peptide BCM-7 inokunxulunyaniswa nesifo seswekile, isifo sentliziyo, i-autism kunye ne-SIDS. Okwangoku, iziphumo zixubekile kwaye kufuneka uphando ngakumbi.

Ukucola impilo

Ukunganyamezelani kweLactose kukungakwazi ukwetyisa iswekile yobisi (lactose). Esi sizathu esiqhelekileyo sokuqunjelwa, irhasi, kunye norhudo.

Isixa se-lactose kubisi lwe-A1 kunye ne-A2 sinye. Nangona kunjalo, abanye abantu baziva ngathi ubisi lwe-A2 lubangela ukudumba okuncinci kunobisi lwe-A1.

Ngapha koko, uphononongo lubonisa ukuba izinto zobisi ngaphandle kwe-lactose zinokubangela ukungonwabi kokugaya (,).

Izazinzulu zicebise ukuba iiproteni ezithile zobisi zinokuba noxanduva lokunganyamezeli ubisi kwabanye abantu.

Olunye uphononongo kubantu abangama-41 lubonise ukuba ubisi lwe-A1 lubangela izitulo ezithambileyo kunobisi lwe-A2 kwabanye abantu, ngelixa olunye uphononongo kubantu abadala baseTshayina lufumanise ukuba ubisi lwe-A2 lukhokelele ekungonwabini kokugaya ukutya emva kokutya (,).

Ukongeza, izilwanyana kunye nezifundo zabantu zibonisa ukuba i-A1 beta-casein inokunyusa ukudumba kwinkqubo yokwetyisa (,,).

Ubungqina obukhulayo bucebisa ukuba i-A1 beta-casein ibangela iimpawu zokugaya ezimbi kwabanye abantu.

Umgca wezantsi

Ingxoxo malunga neziphumo ezinokubakho kwezempilo kubisi lwe-A1 kunye ne-A2 ziyaqhubeka.

Uphando lubonisa ukuba i-A1 beta-casein ibangela iimpawu zokugaya ezimbi kubantu abathile.

Kodwa ubungqina busebuthakathaka kakhulu ukuba kwenziwe nasiphi na isigqibo esomeleleyo malunga nokunxibelelana phakathi kwe-A1 beta-casein kunye nezinye iimeko, ezinje ngohlobo lweswekile 1 kunye ne-autism.

Oko kwathethi, ubisi lwe-A2 lunokuzama ukuzama ukuba unengxaki yokwetyisa ubisi oluqhelekileyo.