2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kev Kho Mob Txhais ntawm cytosine arabinoside: a cytotoxic antineoplastic agent C9H13N3 O5 uas yog cov isomer hluavtaws ntawm cov nucleoside tshwm sim ntawm cytosine thiab arabinose thiab yog siv tshwj xeeb hauv kev kho mob myelogenous leukemia hauv cov neeg laus. - hu ua Ara-C.
cytosine arabinoside ua haujlwm li cas?
Cytosine arabinoside yog pyrimidine nucleoside antimetabolite. Intracellularly nws hloov mus rau hauv cytarabine triphosphate, uas sib tw nrog deoxycytidine triphosphate thiab inhibits DNA polymerase nrog ua rau inhibition ntawm DNA synthesis. Nws yog tus neeg sawv cev ntawm lub voj voog tshwj xeeb ua haujlwm nyob rau theem S.
YPuas yog cytarabine tib yam li cytosine arabinoside?
Cytarabine, tseem hu ua cytosine arabinoside (ara-C), yog cov tshuaj khomob uas siv los kho tus mob myeloid leukemia (AML), mob qog ntshav qog ntshav qog ntshav (TSIS), mob qog noj ntshav myelogenous leukemia (CML), thiab tsis yog Hodgkin's. lymphoma.
Yuav ua li cas yog lub luag haujlwm ntawm kev ua ntawm cytarabine?
Mechanism of Action
Cytarabine yog ib qho pyrimidine analog thiab tseem hu ua arabinosylcytosine (ARA-C). Nws tau hloov mus rau hauv daim ntawv triphosphate hauv lub cell thiab sib tw nrog cytidine los koom nrog nws tus kheej hauv DNA. Cov piam thaj moiety ntawm cytarabine cuam tshuam kev sib hloov ntawm cov molecule hauv DNA.
YCytarabine yog tsim los ntawm dab tsi?
Cytarabine (Cytosar) yog ib qho sib caislos ntawm hiav txwv daim txhuam cev. Nws kuj tau raug xa mus rau cytosine arabinoside thiab Ara-C. Cytarabine yog metabolized rau cov tshuaj nquag uas inhibits DNA synthesis. Cytarabine yog ib qho tshuaj tiv thaiv metabolite hluavtaws nucleoside analogue.
Pom zoo:
Potboiler txhais lus txhais lus txhais li cas?
British Dictionary txhais lus rau potboiler potboiler. / (ˈpɒtˌbɔɪlə) / npe. paj ntaub ntawv lossis kos duab ua haujlwm me me ua tau sai sai kom tau nyiaj. lub ntsiab lus ntawm lub lauj kaub yog dab tsi? : a feem ntau ua haujlwm tsis zoo (raws li kev kos duab lossis ntawv nyeem) ua rau muaj txiaj ntsig.
Txhais tes txhais tes txhais li cas?
1a: raug los yog zoo li nrog qee yam taw qhia tshwj xeeb: tsim txom lossis tua los ntawm kev kho ntawm ceg txheem ntseeg ntse. b: txhim kho nyob rau hauv ib qho kev khiav tsis tau lossis tsis muaj kev pab. 2: mus koom (lub tsho tiv no ntawm caj npab) ntawm ib tug heraldic ntaub thaiv npog faib vertically los ntawm daj ntseg.
Vim li cas cytosine ib txwm ua khub nrog guanine?
Guanine thiab cytosine ua ib khub nitrogenous puag vim lawv muaj hydrogen daim ntawv cog lus pub dawb thiab hydrogen daim ntawv cog lus ua khub nrog ib leeg hauv qhov chaw. Guanine thiab cytosine tau hais kom ua tiav rau ib leeg. Qhov no yog qhia hauv daim duab hauv qab no, nrog cov ntawv cog lus hydrogen qhia los ntawm cov kab dotted.
Ntawm dna molecule cytosine khi rau?
Cytosine yog ib qho ntawm plaub lub tsev thaiv DNA thiab RNA. Yog li nws yog ib qho ntawm plaub nucleotides uas muaj nyob hauv DNA, RNA, thiab txhua cytosine ua ib feem ntawm txoj cai. Cytosine muaj cov cuab yeej tshwj xeeb uas nws khi hauv ob lub helix opposite ib guanine, ib qho ntawm lwm cov nucleotides.
Txhais lus txhais lus txhais li cas?
rau ncua, tshwj xeeb yog kev khiav tawm lossis kev dag ntxias. … ncua lossis tso tseg, tshwj xeeb tshaj yog los ntawm kev khiav tawm lossis kev dag ntxias (feem ntau tom qab tawm): Nws tau tso tub ceev xwm rau 15 feeb kom nws cov neeg koom tes khiav tawm.
