Kev laus yog ib qho tshwm sim thoob plaws, tab sis nws tsis yog qhov tsis meej. Ntawm tag nrho cov kabmob hauv peb lub cev, daim tawv nqaij ua lub luag haujlwm tshwj xeeb thiab pom meej meej hauv cov txheej txheem kev laus. Wrinkles, thinning ntawm daim tawv nqaij, sagging, sunspots: tag nrho cov cim ntawm kev laus tsis tau tsuas yog qhia zaj dab neeg ntawm lub sij hawm dhau mus tab sis kuj qhia peb lub hlwb tus kheej - tiv thaiv thiab kho lub peev xwm. Tam sim no, cov kev tshawb fawb tawm tshiab qhia tias daim tawv nqaij tsis tsuas yog qhia cov cim ntawm kev laus tab sis kuj tseem tuaj yeem cuam tshuam cov txheej txheem kev laus thiab muab cov lus qhia kom qeeb nws.
Daim tawv nqaij ob lub luag haujlwm
Peb cov tawv nqaij yog nyob deb ntawm lub cev loj tshaj plaws, nrog rau cov neeg laus ntawm daim tawv nqaij thaj tsam ntawm kwv yees li 2 square metres, thiab nws yog qhov tseem ceeb tiv thaiv kab mob, UV hluav taws xob, thiab kev ntxhov siab ib puag ncig. Tab sis nws kuj yog ze ze rau kev laus laus. Kev tshuaj xyuas tsis ntev los no qhia txog kev noj zaub mov, ib puag ncig, thiab cov txheej txheem ntawm tes zoo li txheej txheem kev laus ntawm daim tawv nqaij. Kev noj zaub mov nplua nuj nyob hauv antioxidants- noj txiv hmab txiv ntoo ntau, zaub, thiab omega-3 fatty acids- tuaj yeem ua rau pom kev laus. Nyob rau tib lub sijhawm, cov qab zib siab thiab cov rog ua tiav nrawm nrawm los ntawm kev txhawb nqa oxidative kev nyuaj siab thiab cov teeb meem protein ntau. Tsis ntev los no cov khoom muaj npe hu ua Pro-Xylane, muab los ntawm xylose, ib txwm muaj suab thaj molecule pom nyob rau hauv cov nroj tsuag, feem ntau pom nyob rau hauv cov khoom lag luam tsom cov cim ntawm kev laus. Nws tau txais kev saib xyuas rau nws lub peev xwm los txhim kho daim tawv nqaij elasticity thiab hydration, cov txiaj ntsig uas txhim kho daim tawv nqaij. Nws zoo nkaus li muaj kev tiv thaiv kev laus -, txhawb kev tsim collagen thiab txhawb cov qauv ntawm daim tawv nqaij. Qhov no ua rau nws muaj txiaj ntsig zoo rau cov hnub nyoog qis dua 25 xyoos uas txhawj xeeb txog kev tiv thaiv kev laus.
Dermatologists tseem hais ntxiv tias kev laus ntawm daim tawv nqaij tsis yog ib qho teeb meem ntawm cov tsos: nws qhia txog kev hloov pauv hauv cov qauv collagen sib sib zog nqus, kev tiv thaiv kab mob, thiab kev ua haujlwm ntawm cov tawv nqaij.
Tab sis dab tsi ntxiv ntawm daim tawv nqaij tuaj yeem ua dua li "qhia" kev laus? Nws puas tuaj yeem "ncua sijhawm" lossis txawm tias "kho" kev laus ntawm qhov tob dua?
Genetics thiab Epigenetics: Tig rau ntawm daim tawv nqaij "Cov Hluas Hloov"
Ib txoj kev tshawb fawb zoo siab pom tias Vitamin C tuaj yeem ua rau cov noob dormant cuam tshuam nrog kev loj hlob ntawm daim tawv nqaij thiab rov tsim dua tshiab. Vitamin C tsis tsuas yog ua haujlwm raws li qhov chaw antioxidant; Nws kuj tseem ua kom muaj cov kab mob tshwj xeeb, pab kom tuab thiab txhim khu kev ua haujlwm ntawm cov hlwb ntawm daim tawv nqaij, ua kom muaj txiaj ntsig zoo rau cov hluas zoo nkauj rau cov tawv nqaij laus. Qhov kev tshawb pom no hla lub tebchaws ntawm cov tshuaj pleev ib ce: nws taw qhia rau kev tswj hwm epigenetic - lub peev xwm los hloov pauv cov noob caj noob ces qhib lossis tawm yam tsis hloov DNA nws tus kheej. Vitamin C txhim kho qhov kev qhia ntawm cov noob loj loj los ntawm kev txhawb nqa DNA demethylation (ib hom noob "xauv"), muaj peev xwm thim rov qab qee lub hnub nyoog - cuam tshuam ntawm daim tawv nqaij nyias.
"Yog tias peb tuaj yeem nkag siab thiab siv txoj hauv kev ua kom cov noob no, peb yuav tuaj yeem kho tsis tau tsuas yog wrinkles tab sis kuj kho qhov ua haujlwm ntawm daim tawv nqaij laus," said ib tug ntawm cov thawj coj soj ntsuam.
Qhov kev tshawb pom no yog ib feem ntawm kev nthuav dav hauv kev tshawb fawb ntawm kev laus uas saib cov tawv nqaij ua ib qho kev sib txuas ntawm cov kab mob lom neeg -ib lub cev uas muaj kev laus thiab kev tswj ntawm tes sib tshuam.
Lub luag haujlwm zais ntawm lub cev tiv thaiv kab mob hauv daim tawv nqaij laus
Lwm qhov chaw cog lus ntawm kev tshawb fawb qhia tias daim tawv nqaij ntawm tus kheej lub cev tiv thaiv kab mob tuaj yeem pab tiv thaiv kev sib sau ntawm cov hlwb senescent. Cov kws tshawb fawb tau tshawb pom tias ib yam tshwj xeeb ntawm lub cev tiv thaiv kab mob hauv daim tawv nqaij -cytotoxic CD4+ T cells- tuaj yeem xaiv tshem tawm cov hlwb tsis zoo, lossis "zombie cells." Cov hlwb no sib sau nrog lub hnub nyoog, ua rau mob o thiab cov ntaub so ntswg degeneration.
Qhov kev tiv thaiv kab mob tiv thaiv kab mob no tau ntev tau saib xyuas. Cov kev tshawb pom tshiab qhia tias kev laus tsis yog ib qho kev poob qis xwb - daim tawv nqaij tiv thaiv nws tus kheej, thiab txhim kho qhov kev tiv thaiv no tuaj yeem ua rau muaj hnub nyoog qis dua - cuam tshuam txog kev puas tsuaj los ntawm sab hauv.
Targeting Senescent Cells rau Kho
Senescent hlwb yog qhov tseem ceeb rau kev tshawb fawb kev laus. Cov hlwb no tau tso tseg tsis sib faib tab sis tsis kam tuag-lawv tso cov teeb liab teeb meem uas ua rau cov ntaub so ntswg degeneration. Senescent cell- tshem tawm cov tshuaj uas xaiv tshem tawm cov cell tuaj yeem txhim kho qhov txhab zoo hauv daim tawv nqaij laus. Kev siv tshuaj pleev ib ce ntawm cov senescent cell-clearing compound hu ua ABT-263 rau cov nas muaj hnub nyoog tau pom tias nws pab tshem cov hlwb senescent thiab rov qab kho cov hluas. Qhov no tau cog lus tias yuav ua kom lub qhov txhab kho kom nrawm dua -ib qho teeb meem tseem ceeb rau cov neeg laus, uas feem ntau muaj qhov txhab mob qeeb.
Thaum tib neeg cov ntawv thov tseem tab tom tshawb xyuas, ncaj qha tsom rau cov hlwb senescent yog ib txoj hauv kev zoo siab tshaj plaws kom rov qab cov tawv nqaij laus (thiab tsis yog npog nws xwb).
Los ntawm Kev Tiv Thaiv Kom Ncua Kev Laus
Kev tu tawv nqaij- tshuaj pleev thaiv hnub, moisturizers, thiab tshuaj tua kab mob antioxidants- tseem tseem ceeb heev. Dermatologists hais tias kev tiv thaiv tseem yog lub tswv yim zoo tshaj plaws. Ultraviolet hluav taws xob los ntawm lub hnub yog qhov ua rau pom kev laus ntawm daim tawv nqaij: nws puas collagen, ua rau pigmentation hloov, thiab ua rau oxidative kev nyuaj siab. Kev siv dav - spectrum tshuaj pleev thaiv hnub, hnav khaub ncaws tiv thaiv, thiab nyob hauv qhov ntxoov ntxoo yog txoj hauv kev zoo tshaj plaws los ncua kev laus ntawm daim tawv nqaij.
Txawm li cas los xij, kev tshawb fawb niaj hnub no tau hloov pauv los ntawm "tiv thaiv- kev laus" mus rau kev tu tawv nqaij uas ncua kev laus - lub tswv yim uas tseem ceeb rau kev noj qab haus huv ntawm tes thiab kev ua haujlwm zoo. Qhov no suav nrog:
Antioxidants, xws li cov vitamins C thiab E, neutralize dawb radicals thiab txhawb DNA kho.
Retinoids (vitamin A derivatives) txhawb kev rov ua dua tshiab ntawm tes thiab txhawb kev tsim collagen.
Peptides thiab Pro-Xylane, uas txhawb nqa cov txheej txheem protein hauv daim tawv nqaij.
Kev txhawb nqa kev noj haus -antioxidants, phytonutrients, thiab omega-3 fatty acids-nourishes tawv nqaij los ntawm sab hauv.
Cov kev sim yog txawm tshawb nrhiav cov kev cuam tshuam hauv lub cev, xws li kev hloov pauv kev noj haus thiab kev ua haujlwm mitochondrial, txhawm rau txo cov kev ntxhov siab oxidative thiab kev laus ntawm lub cev, suav nrog daim tawv nqaij.
Bioengineering thiab Regenerative Therapies
Lub forefront ntawm kev tshawb fawb ntawm daim tawv nqaij yog nce mus rau hauv ib tug biomedical kev taw qhia. Qee lub chaw soj nstuam tab tom tshawb nrhiav txoj hauv kev los rov pib lub hnub nyoog cellular moos siv ib feem ntawm cov txheej txheem reprogramming - qhov tseem ceeb rov qab cov hlwb rov qab mus rau lub xeev ua haujlwm hluas thaum tswj hwm lawv cov yam ntxwv. Cov kev tshawb fawb thaum ntxov (txawm tias ua ntej thiab tseem tsis tau siv tshuaj kho mob) qhia tias txoj hauv kev no tuaj yeem kho cov yam ntxwv tseem ceeb ntawm cov tawv nqaij laus.
Ib yam li ntawd, cov kev tshuaj ntsuam xyuas qib siab thiab cov cuab yeej caj ces - suav nrog ib qho - cell RNA sequencing - yog siv los qhia cov txheej txheem sib sib zog nqus ntawm daim tawv nqaij laus, muab lub hom phiaj rau kev kho mob yav tom ntej. Nws cia siab tias nyob rau hauv kaum xyoo tom ntej, peb yuav pom cov kev kho mob kho dua tshiab uas mus dhau ntawm qhov chaw smoothing thiab kho cov ntaub so ntswg los ntawm nws cov hauv paus hniav.
Niaj hnub no txoj kev tiv thaiv- kev laus lub tswv yim mus dhau qhov tsuas yog ua kom tawv nqaij zoo dua qub; Nws yog hais txog kev txhim kho daim tawv nqaij tus kheej - kho lub peev xwm, tiv thaiv kev puas tsuaj, thiab txawm thim rov qab qee yam ntawm cellular aging. Qhov no yog hloov pauv peb txoj kev nkag siab ntawm kev laus thiab muab kev cia siab rau yav tom ntej ntawm kev tshawb fawb ntev.