Ukutshaya Kuchaphazela I-DNA Yakho — Nokuba Kukwangamashumi eminyaka Uyiyekile

Umxholo

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Uyazi ukuba ukutshaya yeyona nto imbi kakhulu onokuyenza emzimbeni wakho-ngaphakathi ngaphakathi, icuba liyinto embi kwimpilo yakho. Kodwa xa umntu eyeka umkhwa ngokulungileyo, angalungisa malini xa kufikwa kwiziphumo ebezingalindelekanga eziyingozi? Ewe, uphononongo olutsha olupapashwe kwiphephancwadi iAmerican Heart Association, Ukujikeleza: I-Cardiovascular Genetics, kukhanyisa ukukhanya ukutshaya ixesha elide ... kunye ne-tbh, ayisiyonto intle.

Abaphandi bahlalutya iisampulu zegazi eziphantse zayi-16,000 kubantu abatshayayo, ababekade betshaya kunye nabangatshayiyo. Bafumanise ukuba umsi wecuba unxulunyaniswa nomonakalo kumphezulu we-DNA-nakubantu abaye bayeka kumashumi eminyaka ngaphambili.

"Uphononongo lwethu lufumene ubungqina obunyanzelisayo bokuba ukutshaya kunefuthe elihlala ixesha elide koomatshini bethu beemolekyuli, ifuthe elinokuhlala ngaphezulu kweminyaka engama-30, utshilo umbhali ophambili wokufunda uRoby Joehanes, Ph.D. Uphononongo lujonge ngokukodwa kwi-DNA methylation, inkqubo apho iiseli zilawula khona imisebenzi yofuzo, echaphazela indlela esebenza ngayo imfuza. Le nkqubo yenye yeendlela apho ukubhenca icuba kunokubangela ukuba abantu batshaye kumhlaza, i-osteoporosis, kunye nemiphunga kunye nezifo zentliziyo.

Nangona iziphumo ziyadimaza, umbhali ofundayo uthe babona ukuphazamiseka kwiziphumo zabo: Olu lwazi lutsha lunokunceda abaphandi baphuhlise unyango olujolise kwezi ntlobo zichaphazelekileyo kwaye mhlawumbi luthintele nezifo ezinxulumene nokutshaya.

E-US kuphela, kuqikelelwa ukuba i-40 yezigidi zabantu abadala ngoku batshaya i-cigarettes, ngokutsho kwedatha ye-CDC esuka kwi-2014. (Singathemba kuphela ukuba inani liye laqhubeka linciphisa ukususela.) Ukutshaya i-cigarette kuyimbangela ehamba phambili yesifo esithintelwayo kunye nokufa-ngaphezulu kunoko. Izigidi ezili-16 zaseMelika zihlala nezifo ezinxulumene nokutshaya. (Abantu abatshayayo ekuhlaleni bayamamela: Ukuhlwa kwabaNtombazana ngaphandle kwecuba akuyisiqhelo esingenabungozi.)

"Nangona oku kugxininisa intsalela yexesha elide yokutshaya, iindaba ezimnandi kukuba ungayeka ukutshaya kwakamsinya, kokukhona ungcono, utshilo umbhali wophando uStephanie London, MD, usekela oyintloko weZiko leSizwe lezeNzululwazi yezeMpilo. I-Joehanes imizuzwana ukuba, ichaza ukuba xa abantu beyeka, uninzi lweendawo ze-DNA ezibuzwayo zibuyele "kumanqanaba 'angaze utshaye' emva kweminyaka emihlanu, oku kuthetha ukuba umzimba wakho uzama ukuziphilisa kwiimpembelelo ezinobungozi zokutshaya icuba."

Funda: Akukaze kube lixesha lokuba uyeke.

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