Ngokweziphumo zophando ezivela kumaziko agunyazisiweyo ngamazwe ngamazwe, izifo kunye nokuguga komzimba womntu kuqala ekonakaleni kweeseli. Amandla eeseli okuzivuselela aya kuncipha ngokwanda kobudala. Xa ukwaluphala kunye neeseli ezigulayo ziqhubeka nokuqokelelana, iiseli ezintsha azinakuzithatha indawo ngexesha, kwaye izifo kunye nokuguga ngokungenakuphepheka kuyenzeka.
Iiseli ze-stem luhlobo olukhethekileyo lweeseli emzimbeni olunokuguquka lube loluphi na uhlobo lweeseli emzimbeni wethu, olusetyenziselwa ukulungisa umonakalo nokutshintsha iiseli zokwaluphala. Kwiminyaka yakutshanje, ngokunzulu kwengcamango yonyango lweeseli ze-stem kwizifo kunye nefuthe lokulwa nokwaluphala, ukugcinwa kweeseli ze-stem kuye kwaba lukhetho olubalulekileyo kwimpilo yabantu abaninzi kwixesha elizayo.
Ixesha Lokugcina Ii-Stem Cells Kwinkqubo YeNitrogen Yolwelo
Ngokwethiyori, ukugcinwa kwe-nitrogen engamanzi kunokugcina izixhobo zeeseli ngonaphakade. Okwangoku, isampulu yeseli ende eyaziwayo egcinwe kwilebhu ye-Chinese Academy of Sciences igcinwe iminyaka engama-70. Oku akuthethi ukuba ukugcinwa okukhenkcezisiweyo kunokwenziwa kuphela iminyaka engama-70, kodwa uphuhliso lwalo lonke eli shishini lunembali yeminyaka engama-70 kuphela. Ngophuhliso lwe-The Times, ixesha leeseli ezikhenkcezisiweyo liya kwandiswa rhoqo.
Kakade ke, ixesha lokugcinwa kwe-cryopreservation ekugqibeleni lixhomekeke kubushushu be-cryopreservation, njengoko kuphela ukugcinwa kwe-cryopreservation enzulu okunokwenza iiseli zilale. Phantsi kweemeko eziqhelekileyo, ingagcinwa iiyure ezi-5 kubushushu begumbi. Ubushushu obuphantsi obuyi-8 degrees Celsius bungagcinwa iiyure ezingama-48. Iifriji eziphantsi ezinzulu ezikwi-80 degrees Celsius zingagcinwa inyanga yonke. I-nitrogen engamanzi isoloko ihleli kwi--196 degrees Celsius.
Ngowama-2011, iziphumo zovavanyo lwe-in vitro kunye nolwezilwanyana ezapapashwa kwi-Blood nguNjingalwazi uBroxmeyer kunye neqela lakhe kwiYunivesithi yase-Indiana, eyingcali kuphando lwebhayoloji ye-cord BLOOD stem cell, zabonisa ukuba ii-stem cells ezigcinwe iminyaka engama-23.5 zinokugcina amandla azo okuqala okwanda, ukwahluka, ukwanda kunye nokufakelwa kwi-vivo.
Ngowama-2018, iseli ye-stem eqokelelwe kwiSibhedlele saseBeijing se-Obstetrics and Gynecology yaqandiselwa iminyaka engama-20 neenyanga ezi-4 ngoJuni 1998. Emva kokuvuselelwa, umsebenzi wawuyi-99.75%!
Okwangoku, kukho iibhanki zegazi zentambo ezingaphezu kwama-300 emhlabeni, apho ama-40 ekhulwini eYurophu, ama-30 ekhulwini eMntla Melika, ama-20 ekhulwini eAsia kunye ne-10 ekhulwini eOceania.
I-World Marrow Donor Association (WMDA) yasekwa ngo-1994 kwaye ikwindawo yaseLeiden, eNetherlands. Eyona inkulu yiNational Marrow Donor Program (NMDP), eseMinneapolis, eMinn., yaza yasekwa ngo-1986. I-DKMS inabaxhasi abamalunga nezigidi ezi-4, inika abangaphezu kwe-4,000 ngonyaka. I-Chinese Marrow Donor Program (CMDP), eyasekwa ngo-1992, yibhanki yesine ngobukhulu emva kwe-United States, iJamani neBrazil. Zinokwahluka zibe zezinye iintlobo zeeseli zegazi, ezifana neeseli ezibomvu zegazi, iiseli ezimhlophe zegazi, iiplatelets njalo njalo.
Inkqubo yeNitrogen yoLwalo yokugcina iiStem Cell
Inkqubo yokugcina iiseli zesiqu ikakhulu iqulathe itanki enkulu ye-nitrogen cryogenic yolwelo, iseti yenkqubo yemibhobho ye-vacuum jacketed (kuquka umbhobho we-vacuum jacketed, ipayipi ye-vacuum jacketed, i-phase separator, i-vacuum jacketed stop valve, i-air-liquid barrier, njl.njl.) kunye nesikhongozeli sebhayoloji sokugcina iisampuli zeeseli zesiqu etankini.
I-nitrogen engamanzi inika ukhuseleko oluhlala luphantsi kubushushu kwiikhonteyina zebhayoloji. Ngenxa yokwenziwa kwe-nitrogen engamanzi ibe yigesi yendalo, kudla ngokuba yimfuneko ukuzalisa izikhonteyina zebhayoloji kube kanye ngeveki ukuqinisekisa ukuba ubushushu kwikhonteyina yebhayoloji buphantsi ngokwaneleyo.
Izixhobo ze-HL Cryogenic
I-HL Cryogenic Equipment eyasekwa ngo-1992 luphawu oludityaniswe neChengdu Holy Cryogenic Equipment Company eTshayina. I-HL Cryogenic Equipment izibophelele kuyilo nasekwenziweni kweHigh Vacuum Insulated Cryogenic Piping System kunye nezixhobo zenkxaso ezinxulumene noko.
Ukuze ufumane ulwazi oluthe kratya, nceda undwendwele iwebhusayithi esemthethweniwww.hlcryo.com, okanye uthumele i-imeyile kuinfo@cdholy.com.
Ixesha lokuthumela: Juni-03-2021
