Impinduka mu miterere y'uruhu no mu mikorere yarwo mu gusaza kw'uruhu

Uburyo umubiri w’umuntu ukoresha ikoranabuhanga mu mikorere y’ururabo rw’imbere ni uko ururabo rw’imbere rugenda ruzamuka buhoro buhoro bitewe n’ihinduka ry’uturemangingo, amaherezo rugapfa rugakora corneum idakozwe mu ngirabuzimafatizo, hanyuma rukagwa. Muri rusange abantu bemera ko uko imyaka igenda yiyongera, urwego rw’ibanze n’urwego rw’inyuma birahindagurika, aho ururabo rw’imbere ruhurira n’uruhu rw’imbere ruhinduka ruto, kandi ubunini bw’ururabo rw’imbere buragabanuka. Kubera ko ururabo rw’inyuma rw’umubiri w’umuntu ari rwo rurerure, ururabo rw’imbere ruhura neza n’ibidukikije kandi rugira ingaruka zoroshye ku bintu bitandukanye byo hanze. Gusaza kw’ururabo rw’imbere bigaragaza neza ingaruka z’imyaka n’ibintu byo hanze ku gusaza kw’umuntu.

Mu gice cy'uruhu gisaza, ingano, imiterere n'imiterere y'ibara ry'uturemangingo tw'ibanze biragenda byiyongera, aho uruhu ruhurira n'uruhu ruba rurerure buhoro buhoro, inzara z'uruhu ziba nkeya cyane, kandi ubugari bw'uruhu buragabanuka. Ubunini bw'uruhu buragabanukaho hafi 6.4% mu myaka icumi, kandi bugabanuka vuba cyane mu bagore. Ubunini bw'uruhu buragabanuka uko abantu basaza. Iri hinduka rigaragara cyane mu bice bigaragara, harimo n'ubuso bwo mu maso, mu ijosi, mu ntoki, no ku maboko. Keratinocytes zihinduka imiterere uko uruhu rusaza, rukarushaho kuba rugufi kandi rubyibushye, mu gihe keratinocytes zigenda ziba nini bitewe no guhinduka guke kw'uruhu, igihe cyo gusaza cy'uruhu gisaza kiyongera, imikorere yo kwiyongera kw'uturemangingo tw'uruhu iragabanuka, kandi uruhu rugahita rworoha, bigatuma uruhu rutakaza ubushobozi bwo kwihuta no kubura iminkanyari.

Bitewe n'izi mpinduka mu miterere y'umubiri, aho uruhu ruhurira n'uruhu ntirukomera kandi ntirushobora kwangirika bitewe n'imbaraga zo hanze. Umubare wa melanocytes ugenda ugabanuka buhoro buhoro nyuma y'imyaka 30, ubushobozi bwo kwiyongera bugabanuka, kandi imikorere ya enzymes ya melanocytes igabanuka ku kigero cya 8%-20% mu myaka icumi. Nubwo uruhu rudakorohera kwijima, melanocytes zikunze kwiyongera mu gace runaka kugira ngo zikore ibibara, cyane cyane mu bice by'izuba. Uturemangingo twa Langerhans natwo turagabanuka, bigatuma imikorere y'ubudahangarwa bw'umubiri igabanuka kandi ikaba ishobora kwandura indwara zandura.

Anlayzer y'uruhuIyi mashini ishobora gukoreshwa mu kumenya iminkanyari y'uruhu rwo mu maso, imiterere yarwo, gutakaza kwa kolajeni, n'imiterere y'uruhanga kugira ngo ifashe mu kumenya gusaza k'uruhu rwo mu maso.