Video: Dab tsi yog qhov cuam tshuam ntawm teratogens rau kev loj hlob ntawm cev xeeb tub?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
A tshuaj teratogen yog ib yam khoom ib puag ncig lossis tus neeg sawv cev-lom, tshuaj lom neeg, lossis lub cev-uas tuaj yeem ua rau muaj kev puas tsuaj nyhuv ntawm a txhim kho menyuam hauv plab . Kev nphav raug rau teratogens thaum lub sij hawm cev xeeb tub theem tuaj yeem ua rau muaj kev pheej hmoo ntawm kev yug menyuam.
Tsis tas li, yuav ua li cas teratogens cuam tshuam rau kev loj hlob ntawm cev xeeb tub?
Teratogens yog cov tshuaj uas tuaj yeem tsim lub cev lossis lub cev tsis xws luag hauv tib neeg embryo los yog cev xeeb tub tom qab tus poj niam cev xeeb tub raug cov tshuaj. Ntxiv thiab, teratogens kuj cuam tshuam cev xeeb tub thiab ua rau muaj teeb meem xws li ua haujlwm tsis tiav, rho menyuam tawm, lossis nchuav menyuam.
Ib yam nkaus, teratogens yog dab tsi thiab lawv cuam tshuam li cas? Teratogens yog tshuaj, tshuaj lom neeg, lossis txawm tias muaj kab mob sib kis uas tuaj yeem ua rau tus menyuam hauv plab txawv txav. Muaj yog billions uas muaj peev xwm teratogens , tab sis tsuas yog qee tus neeg sawv cev raug pov thawj kom muaj teratogenic teebmeem . Cov kws tshawb fawb ntseeg a tshuaj teratogen tau cuam tshuam kev tsim menyuam hauv plab txog 10 txog 14 hnub tom qab xeeb menyuam.
Ib qho ntxiv, kev yug menyuam tsis zoo yog tshwm sim los ntawm teratogens li cas?
Teratogens yog ib puag ncig ib puag ncig uas ua rau muaj kev ruaj khov lossis ua haujlwm tsis zoo lossis tuag ntawm lub embryo lossis menyuam hauv plab. Feem ntau congenital malformations yog tsis paub keeb kwm, tab sis paub teratogens suav nrog tshuaj, niam muaj mob thiab kis kab mob, muaj tshuaj lom hlau, thiab siv lub cev (piv txwv li, hluav taws xob).
Cov theem ntawm cev xeeb tub yog teratogens puas tsuaj tshaj?
Feem ntau teratogens yog phom sij tsuas yog thaum lub sijhawm txhim kho qhov tseem ceeb (piv txwv li, thalidomide yog teratogenic cov kab mob tsuas yog nruab nrab hnub 28 thiab 50 ntawm cev xeeb tub ).
Pom zoo:
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