Cov txheej txheem desquamation tshwm sim hauv txheej txheej sab nraud ntawm daim tawv nqaij hu ua epidermis. Lub epidermis nws tus kheej muaj plaub txheej txheej tshwj xeeb. Txhua txheej txheej no ua lub luag haujlwm hauv desquamation.
Nyob rau hauv txheej ntawm daim tawv nqaij desquamation tshwm sim?
Epidermal desquamation yog cov txheej txheem tswj tau zoo ntawm kev pom tsis pom ntawm corneocytes los ntawm txheej txheej sab nraud ntawm stratum corneum. Qhov no tshwm sim los ntawm kev sib cuam tshuam ntawm proteases thiab lawv cov inhibitors uas tswj kev degradation ntawm corneodesmosomes.
Cov txheej txheem twg ntawm cov epidermis yog qhov chaw ntawm cov plua plav tsim cov txheej txheem desquamation?
Keratinized khaubncaws sab nraud povtseg (stratum corneum) slough tawm ntawm daim tawv nqaij tom qab ib lub sij hawm ntawm lub sij hawm, thiab tshiab tsim keratinized txheej yuav tuaj. Cov txheej txheem no hu ua desquamation lossis turnover.
Qhov twg ntawm cov enzyme hauv qab no yog lub luag haujlwm rau desquamation?
Qhov zoo tshaj plaws tus cwj pwm enzyme kom deb li deb nrog lub tswv yim ua haujlwm hauv desquamation yog stratum corneum chymotryptic enzyme (SCCE)[6±9]. SCCE muaj ntau yam khoom zoo sib xws nrog lub luag haujlwm hauv desquamation hauv vivo, suav nrog pH profile ntawm nws cov catalytic kev ua, nws cov inhibitor profile, thiab cov ntaub so ntswg qhov chaw.
Vim li cas desquamation tseem ceeb?
Ib txwm desquamation yog qhov tseem ceeb rau kev saib xyuas kev ua haujlwm ntawm stratum corneum thiab rau qhov zoo li ntawm daim tawv nqaij. Tsis ntev los noxyoo qee qhov kev paub txog stratum corneum cell cohesion thiab lub luag haujlwm ntawm proteolysis hauv desquamation tau hloov zuj zus.
