Lub luag haujlwm ntawm Penicillinase yog dab tsi?
Lub luag haujlwm ntawm Penicillinase yog dab tsi?

Video: Lub luag haujlwm ntawm Penicillinase yog dab tsi?

Video: Lub luag haujlwm ntawm Penicillinase yog dab tsi?
Video: Tsis kam swb koj rau luag Karaoke 2024, Lub Xya hli ntuj
Anonim

cov kab mob ua rau tsim β-lactamase ( penicillinase ), ib qho enzyme uas cuam tshuam cov txheej txheem sab hauv ntawm penicillin thiab yog li rhuav tshem cov tshuaj tua kab mob ntawm cov tshuaj, lossis lawv tsis muaj cell phab ntsa receptors rau penicillin, txo qis kev muaj peev xwm ntawm cov tshuaj nkag mus rau hauv cov kab mob.

Ntxiv mus, dab tsi yog qhov ua haujlwm ntawm beta lactamase?

Beta - lactamases yog cov enzymes (EC 3.5. 2.6) tsim los ntawm cov kab mob uas muab ntau yam tiv thaiv rau β- lactam tshuaj tua kab mob xws li penicillins, cephalosporins, cephamycins, thiab carbapenems (ertapenem), txawm hais tias carbapenems muaj qhov cuam tshuam zoo rau beta - lactamase.

Penicillinase substrate yog dab tsi? Penicillinase yog kev sib xyaw ntawm ob hom β-lactamases, β-lactamase I thiab II. Ob qho enzymes tau piav raws li metalloenzymes lossis serine-enzymes. Kev ua haujlwm ntawm cov enzyme tau ntsuas hauv International Units (IU) siv benzylpenicillin raws li txheej.

Kuj paub yog, Penicillinase tiv taus dab tsi?

Penicillinase tiv taus penicillins yog cov tshuaj tua kab mob, uas tsis ua haujlwm los ntawm penicillinase enzyme. Qee cov kab mob tsim cov enzyme penicillinase uas rhuav tshem lub nplhaib beta-lactam ntawm cov tshuaj tua kab mob, ua rau penicillin tsis muaj txiaj ntsig.

Vim li cas methicillin tsis siv lawm?

Methicillin yog tsis muaj lawm muaj kev lag luam vim tias nws muaj kev phiv tshuaj suav nrog mob nephritis interstitial thiab lub raum tsis ua haujlwm. Kev ua haujlwm Oxacillin tso cai kom pom ntau dua ntawm cov kab mob heteroresistant ntau dua tshuaj methicillin.

Pom zoo: