Tasirin Kariya naFatar Microecologyna Fata
Glandar sebaceous suna ɓoye lipids, waɗanda ƙananan ƙwayoyin cuta ke daidaita su don samar da fim ɗin lipid emulsified. Wadannan fina-finai na lipid suna dauke da fatty acids kyauta, wanda kuma aka sani da fina-finai na acid, wanda zai iya kawar da abubuwan alkaline da suka gurɓata a kan fata da kuma hana ƙwayoyin cuta na waje (kwayoyin wucewa). , fungi da sauran ƙwayoyin cuta na ƙwayoyin cuta suna girma, don haka aikin farko na flora na fata na al'ada shine muhimmin tasiri mai kariya.
Ciwon fata da abubuwan da suka hada da gumi (glands na gumi), gland na sebaceous gland, da kuma gashin gashi, suna da nasu fure na musamman. Sebaceous glands suna haɗa ɓangarorin gashi don samar da rukunin sebaceous na follicular, wanda ke fitar da sinadari mai wadatar lipid mai suna sebum. Sebum fim ne mai kariya na hydrophobic wanda ke kare da lubricates fata da gashi kuma yana aiki azaman garkuwar rigakafi. Glandan sebaceous suna da ingantacciyar hypoxic, suna tallafawa haɓakar ƙwayoyin cuta anaerobic masu ƙarfi kamar su.P. kurajen fuska, wanda ya ƙunshi P. acnes lipase wanda ke ƙasƙantar da sebum, hydrolyzes triglycerides a cikin sebum, kuma yana sakin fatty acids kyauta. Bacteria na iya mannewa da wadannan fatty acids masu kyauta, wadanda ke taimakawa wajen bayyana mulkin mallaka na sebaceous glands ta P. acnes, kuma wadannan free fatty acid kuma suna taimakawa wajen acidity na fata (pH na 5). Yawancin ƙwayoyin cuta na yau da kullun, irin su Staphylococcus aureus da Streptococcus pyogenes, an hana su a cikin yanayin acidic kuma don haka suna da kyau ga haɓakar staphylococci mara kyau na coagulase da ƙwayoyin coryneform. Duk da haka, ɓoyewar fata yana haifar da karuwa a cikin pH wanda zai ba da damar ci gaban S. aureus da S. pyogenes. Saboda mutane suna samar da mafi yawan sebum triglycerides fiye da sauran dabbobi, yawancin P. acnes suna mamaye fata na mutum.
Lokacin aikawa: Juni-27-2022
