Mmetụta Nchedo nke Microecology Akpụkpọ Ahụ na Akpụkpọ Ahụ

Mmetụta Nchedo nkeỌmụmụ ihe gbasara akpụkpọ ahụna Akpụkpọ ahụ

Mkpụrụ ndụ sebaceous na-ewepụta lipids, nke microorganisms na-agbanwe agbanwe iji mepụta ihe nkiri lipid emulsified. Ihe nkiri lipid ndị a nwere abụba efu, nke a makwaara dị ka ihe nkiri acid, nke nwere ike iwepụ ihe alkaline mebiri emebi na akpụkpọ ahụ ma gbochie nje bacteria si mba ọzọ (bacteria na-agafe agafe). , fungi na nje ndị ọzọ na-akpata ọrịa na-eto, yabụ ọrụ mbụ nke osisi akpụkpọ ahụ nkịtị bụ mmetụta nchebe dị mkpa.

Mwakpo akpụkpọ ahụ na ihe ndị ọzọ dị n'ime ya, gụnyere gland ọsụsọ (sweat glands), sebaceous glands, na follicles ntutu, nwere ụdị osisi pụrụ iche nke ha. Sebaceous glands na-ejikọta follicles ntutu iji mepụta follicular sebaceous unit, nke na-ewepụta ihe bara ụba nke lipids a na-akpọ sebum. Sebum bụ ihe mkpuchi hydrophobic nke na-echebe ma na-ete mmanụ akpụkpọ ahụ na ntutu ma na-arụ ọrụ dị ka ihe nchebe nje. Sebaceous glands na-adịkarị hypoxic, na-akwado uto nke facultative anaerobic bacteria dịkaP. acnes, nke nwere P. acnes lipase nke na-emebi sebum, na-eme ka triglycerides dị na sebum dị ọcha, ma na-ewepụta fatty acids efu. Bakteria nwere ike ịrapara na fatty acids ndị a efu, nke na-enyere aka ịkọwa etu P. acnes si achịkwa sebaceous glands, na fatty acids ndị a efu na-enyekwa aka na acidity nke elu akpụkpọ ahụ (pH nke 5). Ọtụtụ nje bacteria na-akpata ọrịa, dị ka Staphylococcus aureus na Streptococcus pyogenes, na-egbochi ha n'ebe acidic dị ma si otú a dị mma maka uto nke coagulase-negative staphylococci na coryneform bacteria. Agbanyeghị, mkpọchi akpụkpọ ahụ na-ebute mmụba na pH nke ga-akwado uto nke S. aureus na S. pyogenes. N'ihi na ụmụ mmadụ na-emepụta ọtụtụ sebum triglycerides karịa anụmanụ ndị ọzọ, ọtụtụ P. acnes na-achịkwa akpụkpọ ahụ mmadụ.