<prompt> Fingqa isihloko: Lolu cwaningo lubonisa ukuthi izimpawu ezibonisa ukuthi umuntu unesifo i-Alzheimers zibonakala kubantu abaneminyaka engu-20 ubudala. Lokhu kutholakala okungakaze kubonwe ngaphambili kusikisela ukuthi lesi sifo siqala ukubhubhisa ubuchopho isigamu sekhulu leminyaka ngaphambi kokuba kuvele izimpawu. Lena iminyaka emincane kakhulu kunaleyo ososayensi ababeyicabanga. Lokhu okutholakele kuphakamisa ithemba lokunikeza abantu imithi lapho isanda kuqala, lapho kulula khona ukuyilapha, futhi ngisho nokuvimbela lesi sifo. Nokho, ochwepheshe baseBrithani baxwayisa ngokuthi ucwaningo lusesezingeni lokuqala. Okubaluleke kakhulu, akwaziwa ukuthi bangaki abantu abanezimpawu zokuqala zesifo i-Alzheimers ebuchosheni babo abaneminyaka engaphezu kwengu-20 ubudala abayoqhubeka bahlakulele lesi sifo. I-Alzheimers nezinye izinhlobo zokuwohloka komqondo zithinta abantu baseBrithani abangaphezu kuka-800 000 futhi, emhlabeni wonke, inani labagulayo kulindeleke ukuthi liphindwe kathathu lize lifinyelele ezigidini ezingama-44 ngonyaka ka-2050 njengoba abantu bekhula. Njengoba ingekho indlela yokwelapha isifo sokuwohloka komqondo futhi kunemithi esetshenziswayo elinganiselwe, uNdunankulu uDavid Cameron uye wachaza isifo sokuwohloka komqondo ngokuthi yinselele enkulu yezempilo yalesi sizukulwane. Abacwaningi, eNorthwestern University eChicago, bahlola ubuchopho babantu asebekhulile abane-Alzheimers nabangenayo, kanye namasampula athathwe kubantu abangu-13 abaneminyaka ephakathi kuka-20 no-66. Laba bantu abasebasha babengenayo inkinga yokukhumbula lapho befa. Ukuhlolwa kwabonisa ukuthi i-beta-amyloid, iprotheni enobuthi evimba ubuchopho kubantu abane-Alzheimers, yayisiqale ukwakheka kubantu abaneminyaka engu-20 ubudala. Kwakucatshangwa ukuthi ukulimala kobuchopho kwaqala eminyakeni engu-15 noma engu-20 ngaphambi kokuba lesi sifo siqale. Umcwaningi oholayo uProfesa Changiz Geula wathi: Ukuthola ukuthi i - amyloid iqala ukuqoqwa isencane kangaka empilweni kuyinto engakaze ibonwe ngaphambili. Amaqoqo e - amyloid atholakala ngaphakathi kwamangqamuzana ezinzwa, noma amangqamuzana obuchopho, ahilelekile enkumbulweni nasekunakekeleni futhi aphakathi kwabokuqala abafayo lapho umuntu eguga ngendlela evamile, kanye nasezifweni ze - Alzheimer. UProfesa wathi: Lokhu kubonisa ukuthi kungani labo...  <response>: Ukutholakele kusho ukuthi abantu bangelashwa iminyaka eminingi ngaphambi kokuba babonise izimpawu. Ukuhlolwa kwabonisa ukuthi iprotheni enobuthi evimba ubuchopho yaqala ukukhula lapho ineminyaka engu-20 ubudala. Njengoba amaqoqo amaprotheni enqwabelana, amangqamuzana azungeze inkumbulo ayawohloka. Ochwepheshe bathi lokhu kuchaza ukuthi kungani i - Alzheimer ingakhula ngokushesha kangaka. 