Chitetezo cha Khungu la Microecology pa Khungu

Chitetezo chaSkin Microecologypa Khungu

Ma sebaceous glands amatulutsa lipids, omwe amapangidwa ndi tizilombo toyambitsa matenda kuti apange filimu ya emulsified lipid. Mafilimu a lipidwa ali ndi mafuta acids aulere, omwe amadziwikanso kuti mafilimu a asidi, omwe amatha kusokoneza zinthu zamchere zomwe zimayipitsidwa pakhungu ndikuletsa mabakiteriya akunja (mabakiteriya odutsa). , bowa ndi tizilombo tina toyambitsa matenda timakula, choncho ntchito yoyamba ya zomera zapakhungu ndizofunika kwambiri zoteteza.

Kulowa kwapakhungu ndi zomangira, kuphatikiza zopangitsa thukuta (thukuta), zotupa zamafuta, ndi zitsitsi zatsitsi, zimakhala ndi maluwa awoawo. Tizilombo timene timatulutsa timadzi timene timatulutsa timadzi timene timatulutsa timadzi timene timatulutsa timadzi timene timatulutsa timadzi tambiri timene timatulutsa timadzi tambiri timene timatchedwa sebum. Sebum ndi filimu yoteteza hydrophobic yomwe imateteza ndi kudzoza khungu ndi tsitsi ndipo imakhala ngati chishango cha antibacterial. Tizilombo toyambitsa matenda tating'onoting'ono tating'onoting'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono timakhala ti hypoxicP. ziphuphu, yomwe ili ndi P. acnes lipase yomwe imawononga sebum, hydrolyzes triglycerides mu sebum, ndi kutulutsa mafuta acids aulere. Mabakiteriya amatha kumamatira ku mafutawa aulere, omwe amathandizira kufotokozera za koloni za sebaceous glands ndi P. acnes, ndipo mafuta aulerewa amathandizanso kuti pakhale acidity pakhungu (pH ya 5). Mabakiteriya ambiri odziwika bwino, monga Staphylococcus aureus ndi Streptococcus pyogenes, amaletsedwa m'malo a acidic ndipo motero ndi abwino pakukula kwa coagulase-negative staphylococci ndi mabakiteriya a coryneform. Komabe, kutsekeka kwa khungu kumabweretsa kuwonjezeka kwa pH komwe kungathandize kukula kwa S. aureus ndi S. pyogenes. Chifukwa chakuti anthu amatulutsa sebum triglycerides yambiri kuposa nyama zina, P. acnes wochuluka amawononga khungu la munthu.