Lub tshuab ntawm squalene oxidation yog tias nws lub sijhawm qis ionization threshold tuaj yeem pub lossis tau txais electrons yam tsis ua rau cov qauv molecular ntawm cov hlwb puas tsuaj, thiab squalene tuaj yeem xaus cov saw hlau ntawm hydroperoxides hauv txoj kev lipid peroxidation. Cov kev tshawb fawb tau qhia tias qhov peroxidation ntawm sebum feem ntau yog los ntawm singlet oxygen, thiab qhov singlet oxygen quenching rate tas mus li ntawm squalene hauv tib neeg sebum yog loj dua li lwm cov lipids hauv tib neeg daim tawv nqaij. Txawm li cas los xij, nws yuav tsum tau sau tseg tias txawm hais tias squalene tuaj yeem thaiv lipid peroxidation, cov khoom ntawm squalene, xws li unsaturated fatty acids, kuj muaj kev cuam tshuam rau daim tawv nqaij.
Squalene peroxide yuav ua lub luag haujlwm tseem ceeb hauv kev mob pob txuv. Hauv cov qauv sim tsiaj, nws tau tsim tsa tias squalene monoperoxide yog comedogenic heev, thiab cov ntsiab lus ntawm squalene peroxide maj mam nce ntxiv nyob rau hauv UV irradiation. Yog li ntawd, nws tau hais tias cov neeg mob pob txuv yuav tsum tau them sai sai rau kev tiv thaiv hnub, thiab cov tshuaj pleev thaiv hnub tuaj yeem zam squalene peroxidation ntawm cov concentration physiological los ntawm ultraviolet rays.
Cov cuab yeej ntsuas tawv nqaijsiv tau los ntes cov nyhuv ntawm cov tshuaj pleev thaiv hnub. Daim duab UV yuav pom xiav tsaus yog tias siv tshuaj pleev thaiv hnub; yog tias siv tshuaj pleev thaiv hnub, daim duab yuav ci ntsa iab, zoo ib yam li cov khoom seem fluorescent.
Lub sijhawm tshaj tawm: Plaub Hlis-29-2022
