![OPG hauv pob txha yog dab tsi? OPG hauv pob txha yog dab tsi?](https://i.answers-medical.com/preview/medical-health/13833953-what-is-opg-in-bone-j.webp)
Video: OPG hauv pob txha yog dab tsi?
![Video: OPG hauv pob txha yog dab tsi? Video: OPG hauv pob txha yog dab tsi?](https://i.ytimg.com/vi/RXuj50iGZnA/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov tshuaj Osteoprotegerin ( OPG ) yog zais los ntawm osteoblasts thiab osteogenic stromal qia hlwb thiab tiv thaiv lub cev pob txha los ntawm ntau dhau pob txha resorption los ntawm kev khi rau RANKL thiab tiv thaiv nws los ntawm kev cuam tshuam nrog RANK. RANKL/ UA OPG piv hauv pob txha yog li marrow yog ib qho tseem ceeb txiav txim siab ntawm pob txha loj nyob rau hauv ib txwm thiab kab mob xeev.
Hais txog qhov no, rankl sawv rau dab tsi?
RANK yog tus txais rau RANK-Ligand ( RANKL ) thiab ib feem ntawm RANK/ RANKL /OPG teeb tsa txoj hauv kev uas tswj hwm kev sib txawv ntawm osteoclast thiab ua kom muaj zog. Nws yog cuam tshuam nrog kev txhim kho pob txha thiab kho, kev ua haujlwm ntawm lub cev tiv thaiv kab mob, kev txhim kho cov qog ntshav, kev tswj hwm cua sov, thiab kev txhim kho qog noj ntshav.
Qhov thib ob, puas yog osteoblasts tsim qib? Txij thaum osteoblasts tswj cov kev cai ntawm RANKL , kev txhawb siab ntawm cytokines thiab kev loj hlob yam yuav tom qab ntawd txhawb nqa osteoblasts nce kev nthuav qhia ntawm RANKL , feem ntau thaum ib txhij txo cov pob txha tsim.
Kuj paub yog, dab tsi tsim qib?
RANKL . RANKL tshwm sim los ua homotrimeric protein thiab feem ntau yog daim nyias nyias-khi ntawm osteoblastic thiab qhib T cells lossis raug zais los ntawm qee lub cell, xws li qhib T cells (43-45). Cov protein zais cia tau muab los ntawm daim nyias nyias ua los ntawm kev tiv thaiv kab mob proteolytic lossis lwm txoj kev sib txuas (46).
Dab tsi yog qib nyob hauv pob txha?
Receptor activator ntawm nuclear factor-κB ( RANK ) yog tus tswv cuab ntawm cov qog nqaij hlav qog nqaij hlav hauv tsev neeg tau qhia los ntawm osteoclasts thiab lawv cov ua ntej [29]. Kev sib tham ntawm RANK nrog nws ligand (RANKL) tau raug txheeb pom tias yog txoj hauv kev kawg uas dhau los uas cov pob txha resorption tau tswj hwm [29].
Pom zoo:
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Cov pob txha pob txha thiab pob txha ua haujlwm li cas thiaj txav tau lub cev?
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