2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Circadian variation nyob rau hauv asthmatic hloov neeg ua hauj lwm yog intimately cuam tshuam nrog pw tsaug zog thiab zoo li ywj siab ntawm lub hnub ci lub sij hawm. Kev kho mob yuav poob nws cov txiaj ntsig raws li nws tsis txuas ntxiv thaum pw tsaug zog thiab qhov no ua rau pom tseeb qhov txawv txav hauv ntau tus neeg mob.
Vim li cas thiaj mob hawb pob?
Qhov laj thawj tseem ceeb rau kev hloov pauv ntawm circadian ntawm kev mob hawb pob tsis tau tsim tab sis tshwm sim cuam tshuam rau kev ua pa hauv pa. Txoj kev noj qab nyob zoo qhia tau hais tias muaj lub circadian atherosclerosis uas ua rau muaj mob hawb pob thiab feem ntau cuam tshuam nrog kev poob ntawm lub ntsws.
Durnal variation in asthma txhais li cas?
Ib lub diurnal circadian atherosclerosis muaj nws lub ncov thaum sawv ntxov (hauv qhov piv txwv no thaum tav su) thiab nws lub qhov dej thaum pw tsaug zog (hauv qhov piv txwv no thaum ib tag hmo). Cov mob hawb pob muaj loj dua diurnal rhythms hauv cov hlab cua caliber dua li cov kev kawm. tsis tu ncua qhia tias txoj hlab cua tsis kam yog siab dua ntawm. hmo.
txhais li cas los ntawm diurnal variation?
Kev txhais ntawm kev hloov pauv hauv hnub. Cov kev hloov pauv uas tshwm sim hauv txhua hnub. hom: hloov pauv, hloov pauv . piv txwv ntawm kev hloov pauv; tus nqi lossis qhov loj ntawm kev hloov pauv.
Dab tsi yog diurnal PEF variability?
Kev hloov pauv txhua hnub: Yog qhov sib txawv ntawm qhov siab tshaj plaws thiab qis tshaj qhov tseem ceeb muab faib los ntawm lawv qhov txhais tau ntau dua 20%(thiab tsawg kawg yog 60 l / min) qhov kev kuaj mob hawb pob yog muaj zog. txhawb nqa.
Pom zoo:
Txhais li cas los ntawm meristic variation?
ntaus variation nyob rau hauv taxonomic cim xws li cov xov tooj ntawm bristles, vertebrae, me ntsis thiab lwm yam. Kev hloov pauv hauv biology yog dab tsi? Meristic variations yog hloov pauv ntawm tus lej ntawm qhov rov tshwm sim ntawm tus tsiaj, piv txwv li, muaj rau tus lej hauv tus txiv neej es tsis yog tsib li ib txwm.
Variation tshwm sim li cas?
Kev hloov pauv caj ces tuaj yeem tshwm sim los ntawm mutation (uas tuaj yeem tsim cov alleles tshiab hauv cov pejxeem), random mating, random fertilization, thiab recombination ntawm homologous chromosomes thaum lub sij hawm meiosis (uas reshuffles alleles nyob rau hauv lub cev xeeb tub).
Yuav ua li cas recombination ua rau variation?
Thaum meiosis, homologous chromosomes (1 ntawm txhua tus niam txiv) ua khub raws lawv qhov ntev. Chromosomes hla ntawm cov ntsiab lus hu ua chiasma. Ntawm txhua chiasma, cov chromosomes tawg thiab rov ua dua, ua lag luam qee yam ntawm lawv cov noob.
Variation txhais li cas?
Kev hloov caj ces yog qhov sib txawv ntawm DNA ntawm tib neeg lossis qhov sib txawv ntawm cov pejxeem. Muaj ntau qhov chaw ntawm kev hloov caj ces, suav nrog kev hloov pauv thiab kev sib txuas ntawm caj ces. Tus piv txwv hloov pauv yog dab tsi?
Vim li cas thiaj mus ntsib kws kho mob ntsws ntsws asthma?
Pulmonologist. Koj yuav tsum mus ntsib kws kho mob pulmonologist yog tias koj muaj kab mob uas cuam tshuam rau koj txoj kev ua pa. Koj tus kws kho mob tuaj yeem xa koj mus rau kws kho mob pulmonologist yog tias koj cov tsos mob hawb pob muaj qhov ua rau hnyav dua.
