Kunzwisisa Nyaya
Stem cell cell tsvakurudzo inyaya yakaoma uye inokakavadzana. Iwe usati wange uri waro kana kuti uchirwise, unofanirwa kunyatsonzwisisa izwi, zvingaita, nemigumisiro ye stem cell tsvakurudzo. Iko kune tsanangudzo yakajeka iyo inogadzirisa maonero ekutsvaga kwemasero masero. Yakaitwa:
- political issue
- nyaya yechitendero
- hupenyu hwehupenyu huripo
Mukati meMay 2005 Mutungamiri Bush akati, "Ndiri mutsigiri akasimba we stem cell tsvakurudzo, asi ndakazvijekesa zvikuru kuCongress kuti kushandiswa kwemutero wemutero mari yekusimudzira sayenzi inoparadza hupenyu kuitira kuchengetedza hupenyu, ini ndinopesana neizvi. "
Ndezvipi masero machena (SC)?
SC yakasiyana nemamwe marudzi emasero mumuviri. Pasinei nokuti vanobva kupi, vanogona kugovana nekuzvitsvaga ivo kwenguva refu. Kunyange zvazvo vasina unspecialized, vanogona kukonzera kumhando dzakasiyana dzemasero (kureva musimba, ropa tsvuku, uropi).
Chii chinonzi embryonic stem cells (ESC)?
ESC inotorwa kubva kumaberesi anowanikwa kubva mazai akave akadyarwa mu vitro, mune imwe kliniki in vitro fertilization. Zvinopiwa nekuda kwekutsvakurudza nekubvumirana kwakanyatsozivikanwa kwevanopa. Hazvisi zvinobva mazai akabatanidzwa mumuviri wemukadzi - izvo zvinowanzosaziva.
Ndezvipi zvakakura masero masero (ASC)?
ASC haina kusarudzwa, inowanikwa pakati pekusiyaniswa kwema cell mumutumbi kana nhengo. ASC inogona kuzvivandudza pachavo, uye inokwanisa kusiyanisa kuti ipe iyo huru mazana masero emhando yeiviri kana nhengo. Basa ravo rinokosha munhengo mhenyu ndeyekuchengetedza nekugadzirisa mhando dzavanowanikwa.
Izvo ESC neAASC zvakafanana sei uye zvakasiyana sei?
Zvinopesana nhamba uye rudzi rwemasero akasiyana akwanise kuva. ESC inogona kuva yose mhando inowanikwa mumuviri. ASC inonzi haina kunyanya kushandiswa, inowanzogadzikana kuti iparadzanise mumasero akasiyana-siyana emuviri wavo. Zvisinei, humwe humwe uchapupu hunoratidza kuti ASC yakabva kune imwe mhuka huru inogona kukwanisa kusiyanisa mhando dzemasero eimwe mhuka huru.
Pros
Kuenderera mberi nekutsvakurudza pamusoro pevanhu embryonic stem cells kunogona kuziva kuti masero ematsvina asingasviki anosiyana sei. Zvinonyatsozivikanwa kuti kutendeuka kwemajini uye kubva kune imwe nzvimbo iri pakati pekuita. Zvimwe zvehutano zvakanyanya zvakanyanya zvinokonzerwa neasina kushandiswa kwesero uye kusiyana.
Kunzwisisa kwakanakisisa kuti izvi zvinotungamirirwa sei paine genetic uye molecule zvinogona kutungamirira kune:
- ruzivo rwakakosha pamusoro pemhosva yezvirwere zvakawanda
- mitsva uye nzira dzakanakisisa dzokurapa maitiro
- zvinogona kurapa zvirwere zvakawanda zvehutano
Zvichinyatsojeka, avo vanotsigira vanhu embryonic stem cell tsvakurudzo vanotenda kuti inogona kutungamirira kune zvirwere zvinogona kuitika zvirwere zvakawanda, kusanganisira:
- Rheumatoid Arthritis
- Lupus
- Scleroderma
- Chirwere cheshuga
- Chirwere chePalinson
- Chirwere cheAlzheimer
- Chirwere chemoyo
- Cancer
- Kukuvara kwemutsipa
Masero evanhu anokwanisawo kushandiswa kuedza mishonga mitsva. Maererano neNIH (National Institutes of Health, "kuongorora madhiragi zvakanaka, mamiriro ezvinhu anofanira kunge akafanana kana achienzanisa mishonga yakasiyana siyana.) Saka, masayendisiti achakwanisa kunyatsokwanisa kudzora kusiyana kwemasero emasero mune imwe nzvimbo yeropa pane zvinodhaka ichave ichitariswa.Zvino ruzivo rwemashoko ekudzora kusiyanisa kunopera zvishoma nekukwanisa kuenzanisa mamiriro aya zvakanyatsoramba aine masero akafanana akasiyana siyana emishonga imwe neimwe iri kuedzwa. "
Chido chekugadziriswa michina uye nhengo dzakawandisa zvinowanikwa. Masero emakumbo, anorayirwa kuti aparadzanise mune mamwe masero evanhu, anogona kupa mvumo yekuwanazve inogona kugadziriswa masero uye masukisi kuti apore zvirwere zvakawanda.
Cons
Chimwe chezvinhu zvinopesana ne embryonic stem cell tsvakurudzo zvine chokuita nekutenda kuti kushandisa embryo kunopesana noupenyu. Vanhu vanomira vakasimba mushure meiyi pfungwa vanodavira kuti kunyange nechinangwa chekutsvakurudza kwezvokurapa uye nekukwanisa kuponesa upenyu, hazvina kururama. Kune vanhu vanopikisa embryonic stem cell tsvakurudzo iyi nyaya yezvetsika uye tsika dzakapfuura zvakakosha zvesayenzi.
Hapana chivimbiso chokuti kuenderera mberi ne embryonic stem cell tsvakurudzo ichabudisa zvido zvinoda. Iyo, zvakare, inetso kune vamwe vanopikisa iyo. Kushandiswa kwe embryonic stem cells, pane ino inoretical, kusiyana nemasero evanhu vakuru vakaratidza zvibereko zvekurapa.
Kwainoenda
Kunzwisisa nyaya iyi usati waita maonero kunokosha. Stem cell cell tsvakurudzo inyaya yakaoma, pasina mubvunzo. Kuongorora zvakare pamusoro pezvesayenzi uye maonero ekutenda kunogona kungoguma nokuva nehuwandu uye ruzivo, uye kuvimbiswa kwokuti iwe umire kune rumwe rutivi nenyaya iyo yakanyatsoenderana nekutenda kwako.