Tšusumetso e Sireletsang ea Microecology ea Letlalo Letlalong

Tšusumetso ea Tšireletso eaThuto ea Microecology ea LetlaloLetlalong

Litšoelesa tsa sebaceous li ntša mafura, a fetoloang ke likokoana-hloko ho etsa filimi ea mafura e kopantsoeng. Lifilimi tsena tsa mafura li na le li-acid tse mafura tse lokolohileng, tse tsejoang hape e le lifilimi tsa asiti, tse ka fokotsang lintho tse nang le alkaline tse silafetseng letlalong le ho thibela libaktheria tse tsoang linaheng tse ling (tse fetisang libaktheria). , li-fungus le likokoana-hloko tse ling tse bakang mafu lia hola, kahoo mosebetsi oa pele oa limela tse tloaelehileng tsa letlalo ke phello ea bohlokoa ea tšireletso.

Ho kenella ha letlalo le likaroloana tsa lona, ​​ho kenyeletsoa le litšoelesa tsa mofufutso (litšoelesa tsa mofufutso), litšoelesa tsa sebaceous le li-follicle tsa moriri, ho na le limela tsa tsona tse ikhethang. Litšoelesa tsa sebaceous li hokahanya li-follicle tsa moriri ho etsa karolo ea follicular sebaceous, e ntšang ntho e ruileng ea lipid e bitsoang sebum. Sebum ke filimi e sireletsang e sireletsang letlalo le moriri ka hydrophobic e sireletsang le ho tlotsa letlalo le moriri 'me e sebetsa e le thebe ea antibacterial. Litšoelesa tsa sebaceous li batla li se na chefo e ngata, e tšehetsang kholo ea libaktheria tse nang le li-anaerobic tse kangLi-acne tsa P., e nang le P. acnes lipase e senyang sebum, e hydrolyze triglycerides ka har'a sebum, 'me e ntša mafura a mahala. Libaktheria li ka khomarela mafura ana a mahala, a thusang ho hlalosa ho kolone ha litšoelesa tsa sebaceous ke P. acnes, 'me mafura ana a mahala a boetse a kenya letsoho ho acidity ea bokaholimo ba letlalo (pH ea 5). Libaktheria tse ngata tse tloaelehileng tse bakang mafu, joalo ka Staphylococcus aureus le Streptococcus pyogenes, li thibeloa tikolohong e nang le asiti 'me ka hona li molemo bakeng sa kholo ea coagulase-negative staphylococci le coryneform bacteria. Leha ho le joalo, ho koaleha ha letlalo ho fella ka keketseho ea pH e tla thusa kholo ea S. aureus le S. pyogenes. Hobane batho ba hlahisa triglycerides e ngata ea sebum ho feta liphoofolo tse ling, P. acnes e ngata e kolobisa letlalo la motho.