Iyini i-collagen yohlobo lwe-II?
Uhlobo IIi-collageniphrotheni ye-fibrillar eyakhiwe ngamaketanga amade angu-3 ama-amino acid akha inethiwekhi egcwele ngokuqinile yama-fibrils nemicu.Iyingxenye eyinhloko ye-cartilage emzimbeni.Iqukethe isisindo esomile futhiama-collagens.
Uhlobo IIi-collagenyilokho okunikeza uqwanga amandla alo okuqina nokunwebeka, ngaleyo ndlela lukwazi ukusekela amalunga.Kuyasiza enqubweni yokubopha ngosizo lwe-fibronectin nezinyeama-collagens.
Uyini umehluko phakathi kohlobo II kanye nohlobo lwe-collagen I?
Phezulu zibonakala zifana, ngayinye iyi-helix emithathu okungukuthi eyakhiwe ngamaketanga amathathu amade ama-amino acid.Nokho, ezingeni lamangqamuzana kunomehluko obalulekile.
Thayipha i-collagen: Amaketango amabili kwamathathu ayefana.
Thayipha i-collagen II: Womathathu amaketanga ayefana.
Thayipha II-collagenitholakala kakhulu emathanjeni nasesikhunjeni.Nakuba uhlobo IIi-collagenitholakala kuphela ku-cartilage.
Yiziphi izinzuzo ezenza uhlobo IIi-collagenukudlala emzimbeni?
Njengoba sibonile, thayipha IIi-collageniyingxenye enkulu yezicubu ze-cartilage.Ngakho ukuze uyiqonde ngempela indima eyidlalayo, umuntu kumelwe abheke umsebenzi woqwanga emzimbeni.
I-cartilage iyizicubu ezixhumene eziqinile kodwa ezithambile.Kunezinhlobo ezahlukene ze-cartilage emzimbeni, ngayinye inomsebenzi othize.I-cartilage etholakala emalungeni inemisebenzi eminingana, njenge
- ukuxhuma amathambo
- ukuvumela izicubu ukuthi zithwale ukucindezeleka komshini
- ukumuncwa ukushaqeka
- ukuvumela amathambo axhunyiwe ukuthi ahambe ngaphandle kokungqubuzana
Uqwanga lwakhiwe ama-chondrocyte okungamangqamuzana akhethekile akha lokho okwaziwa ngokuthi 'i-extracellular matrix' ehlanganisa i-proteoglycan, imicu ye-elastin kanye nohlobo II.i-collagenimicu.
Uhlobo IIi-collagenimicu iwumthombo oyinhloko we-collagenous otholakala ku-cartilage.Badlala indima ebaluleke kakhulu.Bakha inethiwekhi yama-fibrils esiza ukuhlanganisa i-proteoglycan ne-elastin fibers ibe izicubu eziqinile, kodwa eziguquguqukayo.
Isikhathi sokuthumela: Dec-29-2021