Ukukhathazeka kwamazinyo? Ama-stem cells angagcina abe yimpendulo.
Kwabaningi, amazinyo angase akhule ukwesaba kwabo okujulile futhi okusobala kakhulu. Okuyiqiniso kwabaningi ukuthi udokotela wamazinyo angakuthumela ngomzwelo, kuze kube yilapho ungaqeda ukuzama ukugwema ukuqokwa kwakho ngokuphelele.
Izinkinga ngamazinyo akho ziba zimbi nakakhulu uma zishiywa zingalindelwe. Yingakho inqwaba yabantu ababhekana nokukhathazeka kwamazinyo kuphelela ekushiyeni inkinga ingahlosiwe kuze kube yilapho iphuzile.
Ezimweni ezinjalo, ekugcineni ungase ubhekane nesidingo sokufaka esikhundleni sezinyo ezilahlekile.
Izifo ezivamile ezifana nokubola kwamazinyo kanye nesifo sezinsini kungaholela ekulahlekeni kwezinyo. Ngokwesiko, odokotela bamazinyo baye basebenzisa amabhuloho wamazinyo namazinyo okuthatha amazinyo esikhundleni samazinyo abagulayo. Izimplantshi zamazinyo zaziyingxenye enkulu yezinkampani ezinkulu zokwelashwa kwamazinyo ngasekupheleni kwekhulu lama-20. Ukuguqulwa kwamazinyo enesimbi yesikhala seminyaka kubonakala sengathi sesifinyelele ezingeni eliphezulu lobuchwepheshe.
Kodwa intuthuko yamuva ekucwaningeni kwe-stem cell yembule ikusasa lapho izimila zamazinyo zingaba ubuchwepheshe obudala.
Ingabe ama-Stem Cell aphinde abuyele esikhundleni sezinyosi?
Ungase uthi ukuthi njengomuntu usenza sibe namahloni mayelana nokuthi mangaki amazinyo esiwathola empilweni yethu. Ngesikhathi sokuphila kwakho, unezinhlobo ezimbili zamazinyo. Amazinyo enqabile noma amantana alahlekile ngesikhathi uneminyaka engu-12 noma engu-13 ubudala. Lokhu kusho ukuthi amazinyo akho omdala kufanele akugcine impilo yakho yonke.
Ezinye izinhlobo, okwamanje, zinamazinyo angenamkhawulo ngesikhathi sokuphila kwazo.
Ushaka uyingqayizivele ngendlela engafani kulokhu angakwazi ukufaka amazinyo emavikini ambalwa nje. Umqondo womlomo ka-shark cishe usishiya ucindezela ngento eyodwa eyesabekayo kunokwedokotela wamazinyo. Kodwa oshaka ubufakazi bokuthi amandla emvelo akhule amazinyo amasha abe umuntu omdala.
Ososayensi baye bahola futhi babheka indlela ama-cell stem angasetshenziswa ukukhulisa amazinyo amasha kumuntu omdala.
Imvelo ingase ibe nezinzuzo ezibalulekile ngaphezu kwezimpande zamazinyo. Izimila zamazinyo, ngenxa yezindleko nokuyinkimbinkimbi, akuyona inqubo evamile yamazinyo. Inqubo efaka amangqamuzana e-stem ingase inikeze ukhetho lokuzishintsha izinyo olufinyeleleka kakhulu futhi elingabizi.
Izimplantshi zamazinyo, isibonelo, azikwazi ukufakwa kubantu abanezimo ezithile. Ukwengeza, abantu abaningi bayesaba inqubo yokufakelwa kwamazinyo . Kudinga ukuhlinzekwa ngomlomo, okuye kwaqhubekela phambili ngokuphawulekayo, kodwa naphezu kokwanda kweteknoloji, izimila zamazinyo azikho ngaphandle kwemishayo yazo. Ezinye zezinkinga ezingase zibe khona zifaka okulandelayo:
- Ukuphulukisa isikhathi
- Inqubo ende
- Izimo ezinzima zokuhluleka
- Ukungabi nocwaningo lwesikhathi eside mayelana nokuphila isikhathi eside
Ngakho-ke, ngo-sharks engqondweni, ingabe ama-cell stem ikusasa lokushintsha amazinyo?
Yini Amaseli Ezinyosi Zamazinyo?
Umzimba uqukethe izinhlobo eziningi zamaseli. Kusukela ekuzalweni, njenge-speck encane, awuhlonywanga ngazo zonke izinhlobo ezahlukene zamaseli adingekayo emzimbeni. Ama-stem cells akusiza ukuba udale zonke izitho ezihlukene nezinhlelo ezenza wena . Ziyi-cell engekho emthethweni ekwazi ukuguqula kuwo wonke amaselula emzimbeni wakho.
Ama-stem cells angatholakala ezinhlobonhlobo eziningi zomzimba futhi asize ukudala nokugcwalisa umzimba wakho.
Ngokuvamile bangcwatshwa ngokujulile, kunzima ukuthola izindawo. Zivame ukuhamba kancane futhi zifihliwe phakathi kwamaseli ane ukubukeka okufanayo.
Ososayensi bathole ukuthi ngisho namazinyo anesitokisi samaseli asegundeni, atholakala kumazinyo ezinsana kanye namazinyo amakhulu. Lawa maseli anekhono eligcwele lokuziphindaphinda.
Amaseli e-dental stem angase abe nezinhlelo zokusebenza ezindaweni eziningi zesayensi yezokwelapha ngenxa yokuhambisana nesistimu yomzimba womzimba. Enye inkinga ngokufaka amangqamuzana e-stem umzimba ungawachitha ngokuphendula komzimba. Kodwa ngaphandle kokuba nemisebenzi engase ibe khona kwezinye izinqubo zokwelashwa, isicelo esicacile empeleni sithathe amazinyo.
Izifundo ziqala ukukhombisa izindlela ezibonakalayo zokufakelwa kwezinyo ngama-stem cell cells.
Ososayensi Bangakhula Amazinyo Emadodeni Ezilwane
Kuye kwaba nenqubekela phambili ephawulekayo ekusetshenzisweni kwamaseli asegundini kwizifundo zesilwane. Izinyo zikhule ngempumelelo e-King's College eLondon. Ithimba labo lokucwaninga lihlanganisa izicubu zomuntu zesisu kanye nama-stem cells avela emazinyeni amazinyo athola ukuzinzwa kwamazinyo. Amaseli ngokwawo angafuna ukunikezwa kwegazi kusuka ezicubu ezizungezile ukuze enze izinyo eziphilayo.
Olunye ucwaningo lunezinyosi eziphumelele zibe ngamagundane. E-Harvard's Whys Institute, ithimba lokucwaninga lithole impumelelo emazinyweni okukhula okukhula. Basebenzisa inqubo ngokusebenzisa i-laser-power laser ukuze kusebenze amangqamuzana amancane ukuze isakhiwo sinozinyo.
Ngaphezulu kwe-Columbia University, ukutadisha okunye kuye kwayithatha isinyathelo esilandelayo. Lapha, abacwaningi bakwazi ukuqondisa amangqamuzana amancane ukuze enze i-scaffold yesithathu. Imiphumela yabonisa ukuthi izinyo ephelele ngokweqile zingakhula cishe emavikini angu-9.
Umbuzo omkhulu nazo zonke lezi zifundo ukuveza imiphumela kubantu. Yiqiniso, ukwenza amazinyo emagundeni kwakungekho ngaphandle kwezinselele. Ngesikhathi i-dentin yayinembile efana nalokho okukhula ngokwemvelo, akufani neze nabantu.
Baby (Cell Stem) Izinyathelo
Izinselele ezinkulu ezibhekene namaseli ezinamazinyo ezibelethayo ziveza imiphumela ethembekile yomtholampilo yabantu. Esikhundleni sokungena esikhundleni samazinyo onke, amangqamuzana angama-stem angasiza ekuphulukeleni amazinyo njengesinyathelo esinqamule esihlalweni samazinyo.
Isibonelo, amazinyo ayaziwa ukuthi aqukethe amangqamuzana angaphilisa izigaba zamazinyo ngokwabo. Kukhona ezinye izinyathelo eziphakathi zamaseli amancane okuphulukisa amazinyo. Ngokubola kwamazinyo, amangqamuzana ama-stem angakwazi ukuphulukisa isikhumba ngaphambi kokuba izinyo zidinga ukwelashwa kwe-canal . Ama-stem cells angakwazi ukulungisa impumpu yamazinyo futhi aqondise isimiso somzimba sokuzivikela ukuze asuse amabhaktheriya avela izinyo.
Izwi elivela
Enye into eqinisekile ukuthi sonke sinamaseli athile emazinyo ethu. Esikhundleni sokumane nje uphonsa izinyo ebhodini ngemuva kokukhipha, singakwazi ukukhipha amaseli esikhathini esizayo uma singasetshenziselwa ukugcwalisa izinyo.
Ngabantu abaningi abahambahambayo ukuze baqhubekele amangqamuzana abo, kungase kube yindinganiso yokugcina amaseli asemagcineni asezintweni zethu. Okwamanje, amazinyo omntwana kanye namazinyo okuhlakanipha yiwona ongakhetha ukhetho, futhi lezi zivame ukulahlekelwa kakhulu. Amazinyo anempilo aqukethe la maseli athakazelisayo futhi angenza izimangaliso esihlalweni samazinyo esikhathini esizayo.
> Imithombo:
> I-Arany PR, i-Cho A, i-Hunt TD, et al. I-Photoactivation ye-Endogenous Latent Transforming Growth Factor-β1 iqondisa ukuhlukahluka kwama-Stem Sten for Re-Generation, iSayensi yeSayensi Yokuhumusha, 28 Meyi 2014:
I-Vol. 6, Issue 238, iphe. 238ra69.
> Bansal R, Jain A, Ukubukezwa kwamanje kwezicelo zamazinyo ezinamazinyo okuvuselela amazinyo, J Nat Sci Biol Med. 2015 Jan-Jun; 6 (1): 29-34.
> Mao J, Ukukhiqizwa kwezakhi zamazinyo kumaRats, Columbia Technology Ventures