Ngokweziphumo zophando lwamaziko agunyazisiweyo ngamazwe, izifo kunye ne-senescence yomzimba womntu ziqala kumonakalo weeseli. Ukukwazi kweeseli ukuzihlaziya kuya kuncipha ngokunyuka kweminyaka. Xa iiseli ezigugayo kunye nezigulayo ziqhubeka ziqokelelana, iiseli ezintsha azikwazi ukuthatha indawo yazo ngexesha, kwaye izifo kunye ne-senescence ziyenzeka.
Iiseli ze-Stem luhlobo olukhethekileyo lweseli emzimbeni olunokuthi lujike lube naluphi na uhlobo lweseli emzimbeni wethu, olusetyenziselwa ukulungisa umonakalo kunye nokubuyisela iiseli eziguga. Kwiminyaka yakutshanje, ngokunzulu kwengqikelelo yonyango lwe-stem cell yezifo kunye nefuthe lokuguga, i-stem cell cryopreservation ibe lukhetho olubalulekileyo kwimpilo yabantu abaninzi.
Ixesha lokuGcinwa kweeSeli zeStem kwiNkqubo yeNitrojeni engamanzi
Ngokwethiyori, i-nitrogen cryopreservation engamanzi inokugcina imithombo yeseli ngokungenasiphelo. Okwangoku, isampulu yeseli eyaziwayo ide igcinwe kwilabhoratri yeChinese Academy yeSayensi igcinwe iminyaka engama-70. Oku akuthethi ukuba ukugcinwa komkhenkce kunokwenziwa kuphela iminyaka engama-70, kodwa uphuhliso loshishino luphela lunembali yeminyaka engama-70. Ngophuhliso lweThe Times, ixesha leeseli ezikhenkcezisiweyo liya kwandiswa ngokuqhubekayo.
Ewe kunjalo, ixesha le-cryopreservation ekugqibeleni lixhomekeke kubushushu be-cryopreservation, njengoko i-cryopreservation enzulu kuphela inokwenza iiseli zilale. Kwiimeko eziqhelekileyo, inokugcinwa iiyure ezi-5 kwiqondo lokushisa. Ubushushu obuphantsi obuyi-8 degrees Celsius bunokugcinwa iiyure ezingama-48. Izikhenkcezisi ezinobushushu obuphantsi -80 degrees celcius zinokugcinwa kangangenyanga. Initrogen yolwelo ngokwethiyori isisigxina kwi- -196 degrees celcius.
Ngo-2011, iziphumo zovavanyo lwe-in vitro kunye nezilwanyana ezipapashwe kwiGazi nguNjingalwazi uBroxmeyer kunye neqela lakhe elivela kwiYunivesithi yase-Indiana, eyingcali kuphando lwe-BLOOD stem cell biology, yabonisa ukuba iiseli ze-stem ezigcinwe iminyaka eyi-23.5 zinokugcina imvelaphi yazo yokuqala. amandla okwanda kwe-in vitro, ukwahlula, ukwandiswa kunye nokufakelwa kwe-vivo.
Kwi-2018, i-stem cell eqokelelwe kwisibhedlele saseBeijing Obstetrics kunye ne-Gynecology yayikhenkceze iminyaka eyi-20 kunye neenyanga ezi-4 ngoJuni 1998. Emva kokuvuselelwa, umsebenzi wawuyi-99.75%!
Ukuza kuthi ga ngoku, kukho ngaphezu kwe-300 yeebhanki zegazi emhlabeni, kunye nama-40 ekhulwini eYurophu, ama-30 ekhulwini kuMntla Merika, ama-20 ekhulwini eAsia kunye ne-10 ekhulwini eOceania.
IWorld Marrow Donor Association (WMDA) yasekwa ngo-1994 kwaye izinze eLeiden, eNetherlands. Eyona inkulu yiNkqubo yeSizwe yoMboniso (i-NMDP), esekelwe eMinneapolis, eMinn., kwaye yasekwa kwi-1986.DKMS inabaxhasi abamalunga nezigidi ezi-4, inika ngaphezu kwe-4, 000 ngonyaka ngamnye. Inkqubo yoMbono waseTshayina (CMDP), eyasekwa ngo-1992, yibhanki yesine ngobukhulu emva kweMelika, iJamani neBrazil. Ziyakwazi ukwahlula kwezinye iindidi zeeseli zegazi, njengeeseli ezibomvu zegazi, iiseli ezimhlophe zegazi, iiplatelets njalo njalo.
Inkqubo yeNitrojeni yolwelo yokuGcina iiSeli zeStim
Inkqubo yokugcina iseli yestem ubukhulu becala iqulathe itanki enkulu yolwelo yenitrogen cryogenic, iseti yesixokelelwano semibhobho evacuum (kuquka umbhobho ofunxayo, umbhobho ofunjwe ngebhatyi, umbhobho wesahluli wesigaba, ivalve yokuvala ijacket, isithintelo somoya wolwelo, njl.njl.) isikhongozeli sebhayoloji sokugcina iisampulu zeeseli zestem etankini.
Initrogen yolwelo ibonelela ngokhuseleko oluqhubekayo lobushushu obuphantsi kwizikhongozeli zebhayoloji. Ngenxa yegesi yendalo yenitrogen engamanzi, kudla ngokuyimfuneko ukuzalisa izikhongozeli zebhayoloji kanye ngeveki ukuqinisekisa ukuba ubushushu kwisikhongozeli sebhayoloji sisezantsi ngokwaneleyo.
HL Izixhobo zeCryogenic
I-HL Cryogenic Equipment eyasungulwa kwi-1992 i-brand ehambelana ne-Chengdu Holy Cryogenic Equipment Company e-China. I-HL Cryogenic Equipment izibophelele ekuyilweni nasekuveliseni iNkqubo yeMibhobho ye-Vacuum ye-High Vacuum Insulated Cryogenic kunye neZixhobo zeNkxaso ezinxulumene nazo.
Ngolwazi oluthe vetshe, nceda undwendwele iwebhusayithi esemthethweniwww.hlcryo.com, okanye i-imeyile kuinfo@cdholy.com.
Ixesha lokuposa: Jun-03-2021
