![Cov qia hlwb ua dab tsi nrog Planaria? Cov qia hlwb ua dab tsi nrog Planaria?](https://i.answers-medical.com/preview/medical-health/13942102-what-do-stem-cells-have-to-do-with-planaria-j.webp)
Video: Cov qia hlwb ua dab tsi nrog Planaria?
![Video: Cov qia hlwb ua dab tsi nrog Planaria? Video: Cov qia hlwb ua dab tsi nrog Planaria?](https://i.ytimg.com/vi/q9sYJ02oOm0/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov tsiaj no muaj hloov dua siab tshiab qia cell zog. Ib tug neeg laus pluripotent qia hom cell ("neoblast") ua rau muaj ntau yam ntawm tes thiab cov kabmob hauv lub cev tus neeg npaj tswv yim lub cev txoj kev npaj, suav nrog lub hlwb, digestive-, excretory-, sensory- thiab reproductive systems.
Ua kom pom qhov no, pes tsawg feem pua ntawm lub cev yog qia hlwb hauv tus kws npaj?
Cov ntaub so ntswg tshiab tuaj yeem loj hlob vim pluripotent qia hlwb uas muaj peev xwm tsim tau txhua yam sib txawv ntawm tes hom. Cov neeg laus no qia hlwb hu ua neoblasts, thiab suav nrog 20% lossis ntau dua ntawm cov hlwb hauv tus tsiaj laus.
Ib yam li ntawd, hom cell twg siv los ntawm planaria los tsim dua tshiab? Kev rov tsim dua tshiab yuav tsum muaj neeg laus qia hlwb hu ua neoblasts thiab txiav tawm ua rau ob lub ncov nyob hauv neoblast mitoses thaum ntxov hauv kev rov tsim dua tshiab.
Ib yam li ntawd, puas yog Neoblasts qia hlwb?
Neoblasts tau nquag raug suav hais tias yog cov pejxeem tsis sib xws ntawm pluripotent qia hlwb . Tseeb tiag, ib txhia neoblasts , hu ua cNeoblasts, yog pluripotent qia hlwb uas tuaj yeem cawm cov ntaub so ntswg homeostasis thiab rov tsim dua tshiab hauv cov tsiaj txhu uas tsis muaj kab mob los ntawm ib leeg- ntawm tes hloov pauv (Wagner li al., 2011).
Vim li cas Planarian regeneration tseem ceeb?
Vim yog cov yam ntxwv sib txawv, tus planarian feem ntau yog siv ua tsiaj qauv hauv kev tshawb fawb txog paj hlwb. Tshwj xeeb (vim lawv tsim dua tshiab cov khoom), cov kws tshawb fawb ntseeg tias kev kawm lawv tuaj yeem ua rau tseem ceeb Kev nce qib hauv kev kho mob rau cov tib neeg uas muaj lub hlwb puas lossis lwm yam kab mob neurological.
Pom zoo:
Cov txheej txheem twg ntawm kev kawm lub hlwb cuam tshuam nrog kev txhaj tshuaj rau tus neeg mob nrog cov piam thaj hauv ntshav?
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Lub paj hlwb positron emission tomography (PET) scan yog kev ntsuas duab uas tso cai rau cov kws kho mob pom tias koj lub hlwb ua haujlwm zoo li cas. Kev tshuaj xyuas ntes cov duab ntawm kev ua haujlwm ntawm lub hlwb tom qab cov tshuaj tiv thaiv kab mob "tracers" tau nqus mus rau hauv cov ntshav. Cov neeg taug kev no "txuas" rau cov sib txuas zoo li qab zib (qab zib)
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Epidermal qia hlwb yog lub luag haujlwm rau kev rov tsim dua tshiab txhua hnub ntawm cov txheej sib txawv ntawm daim tawv nqaij. Cov qia hlwb no tau pom nyob hauv txheej txheej hauv qab ntawm daim tawv nqaij. Cov hauv paus plaub hau plaub hau ua kom ruaj khov txuas ntxiv ntawm cov hauv paus plaub hau
Dab tsi hauv nruab nrog cev txuas nrog rau txoj hlab ntaws hauv tus menyuam npua Dab tsi nws sau nrog?
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Pom qhov umbilical vein txuas rau txoj hlab ntaws nrog lub siab. Txiav cov leeg no kom koj tuaj yeem tso txoj hlab ntaws rov qab nruab nrab ntawm tus npua lub qab taw. Mob siab-daim siab yog cov kabmob loj dub/xim av ntau lub lobed nyob rau sab saum toj ntawm kab noj hniav
Dab tsi yog ob hom qia hlwb?
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Muaj peb hom qia hlwb: cov neeg laus qia hlwb, embryonic (los yog pluripotent) qia hlwb, thiab induced pluripotent qia hlwb (iPSCs)
Yuav kho leukemia li cas nrog qia hlwb?
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Kev hloov pauv qia cell hloov cov qe ntshav leukemia hauv koj cov pob txha nrog cov tshiab uas ua ntshav. Ua ntej tshaj, koj yuav tau txhaj tshuaj kho mob siab txhawm rau txhawm rau rhuav tshem cov qog nqaij hlav cancer hauv koj cov pob txha. Tom qab ntawd, koj yuav tau txais cov qia hlwb tshiab los ntawm kev tso ntshav rau hauv ib qho ntawm koj cov leeg. Lawv yuav loj hlob mus rau hauv cov qe ntshav tshiab, noj qab nyob zoo