Il-mekkaniżmu ta 'ossidazzjoni ta' squalene jinsab f'dak li l-limitu ta 'jonizzazzjoni baxxa tiegħu jista' jagħti jew jirċievi elettroni mingħajr ma jagħmel ħsara lill-istruttura molekulari taċ-ċelloli, u squalene jista 'jtemm ir-reazzjoni tal-katina ta' idroperossidi fil-passaġġ tal-perossidazzjoni tal-lipidi. Studies have shown that the peroxidation of sebum is mainly caused by singlet oxygen, and the singlet oxygen quenching rate constant of squalene in human sebum is much larger than that of other lipids in human skin. Kostanti tal-estinzjoni. However, it should be noted that although squalene can block lipid peroxidation, the products of squalene, such as unsaturated fatty acids, also have an irritating effect on the skin.
Il-perossidu tal-squalene jista 'jkollu rwol ewlieni fil-patoġenesi ta' l-akne. In animal experimental models, it has been established that squalene monoperoxide is highly comedogenic, and the content of squalene peroxide gradually increases under UV irradiation. Therefore, it is suggested that acne patients should pay attention to sun protection, and sunscreens can avoid squalene peroxidation at physiological concentrations caused by ultraviolet rays.
Analizzatur tal-Ġildajista 'jintuża biex jikxef l-effett tal-krema tax-xemx. L-immaġni UV hija murija blu skur jekk tiġi applikata protezzjoni mix-xemx kimika; Jekk il-protezzjoni mix-xemx fiżika hija applikata, l-immaġni tirrifletti, simili għal residwu fluworexxenti.
Post tal-Post: April-29-2022
