Isenencence ngokwezwi nezwi isho ukuthi "inqubo yokukhula endala." Ichazwa njengenkathi yokunciphisa kancane kancane okulandela isigaba sokuthuthukiswa empilweni yomuntu. Ngakho ukuzwela kubantu kuqale isikhathi esithile kuma-20s akho, ekuphakameni kwamandla akho omzimba, futhi uqhubeke impilo yakho yonke.
Igama elithi "senescence" lisuselwa egameni lesiLatini elithi senex, elisho "ukuguga." Esikhathini eside nemikhakha esebenzayo yokuguga , i-senescence iyancipha empilweni nasemisebenzini ehambisana nokuguga.
Kunezinyathelo eziningana ezingezansi ezizovame ukuvela, kufaka phakathi isenescence yamaselula kanye nesimo senescence yomzimba .
Kuyini I-Celeslar Senescence?
Lapho amangqamuzana elahlekelwa amandla okuhlukanisa ngenxa yokulimala kwe-DNA noma ukunciphisa ama- telomeres , athola ushintsho oluholela ekunciphiseni noma ekubhujisweni. Amaseli angazilimaza (okuthiwa i- apoptosis ) noma angene esikhathini sokuncipha (okuthiwa yi- senescence ).
Umphumela wokuphela wokugcina uwukufa kweselula, okuyingxenye evamile yokusebenza kwezinto eziphilayo futhi kwenzeka njalo emzimbeni wakho.
Amaseli e-Cancer acatshangwa ukuthi ayingqamuzana engasenayo inqubo ye-senescence esikhundleni salokho, qhubeka uqhubeka uphinde ubangele izinkinga (nezicubu). Eqinisweni, abacwaningi bazama ukuthuthukisa ukwelashwa okubangelwa ukuthi amangqamuzana omdlavuza aqale ukuguga njengamaseli avamile - ngamanye amazwi, ososayensi bafuna ukudala i-senescence evamile kulawa maseli njengendlela yokulwa nomdlavuza.
Umzimba wakho kanye nesisense
Ngenkathi i-senescence yeselula ingase ibe yinto enhle ngoba amangqamuzana ahlala eshintsha esikhundleni sawo, umzimba wakho uzogcina ungena esikhathini sokunciphisa eyaziwa njenge- organismal senescence (ngamanye amagama, isenescence yemvelo).
Njengoba ngishilo ngenhla, le nqubo iqala lapho umzimba wakho uphuthukile ngokugcwele futhi unamandla amakhulu, futhi uqhubeka impilo yakho yonke.
Kulo hlobo lwe-senescence, umonakalo oqoqiwe emzimbeni wakho uqala ukuphazamisa ikhono lomzimba lokusebenza. Lokhu kuphazamiseka kubangelwa imiphumela esivame ukuzihlanganisa nokuguga.
Ubude obukhulu, ukuguga okunempilo kanye ne-Senescence
Isayensi ayitholakali indlela yokuphazamisa inqubo ye-senescence ngokuqondene nabantu, kanti abanye abacwaningi (nakuba kungenabo bonke nganoma iyiphi indlela) bathi singeke sikwazi ukukuyeka.
Kodwa singayinciphisa. Ngakho-ke, umgomo wakho ukuphuza inqubo ye-senescence ngangokunokwenzeka. Ungakwenza lokhu ngo:
- Ukudla ukudla okunempilo: Lokhu kunikeza umzimba wakho izakhi ezidinga ukulungisa umonakalo nokulwa nomonakalo wesikhathi esizayo.
- Ukunciphisa Ukucindezeleka: Lokhu kuvimbela umonakalo wesikhathi eside kusuka ekuvezeni ngokweqile kuma-hormone okucindezeleka kanye nesimo somzimba abayakhayo.
- Gwema Ukuveleleka Kwamanye Amandla Okulimazayo: Lolu lusizo lunciphisa inani lemonakalo emathisini omzimba wakho. Gwema ukuvezwa ngokweqile kwezibani ze-UV, ukungcola, kanye ne-toxin.
- Ukusebenzisa okuningi: Lokhu kusiza umzimba wakho ukwakha izicubu ezinamandla ezimelana nomonakalo.
- Ukuvimbela Izifo: Bheka udokotela wakho ukuze uhlolwe njalo futhi ugcine ingcindezi yakho yegazi, isisindo kanye nezinye izinto eziyingozi ngaphansi kokulawula.
Imithombo:
I-Campisi J. Aging, i-senescence yeselula, nomdlavuza. Ukubuyekezwa Kwangonyaka Kwemvelo. 2013; 75: 685-705.
I-Dimri GP et al. Yini i-senescence ehlobene nomdlavuza? I-Cancer Cell. 2005 Jun; 7 (6): 505-12.