Antihistamines thaiv cov teebmeem ntawm cov tshuaj hu ua histamine hauv koj lub cev. Histamine ib txwm tso tawm thaum koj lub cev pom qee yam teeb meem, xws li kev kis kab mob. Nws ua rau cov hlab ntsha nthuav dav thiab daim tawv nqaij o, uas pab tiv thaiv lub cev.
Puas yog koj noj tshuaj tiv thaiv kab mob txhua hnub?
Cov kws tshaj lij hais tias, feem ntau yog ua tau. "Nyob rau hauv cov koob tshuaj pom zoo, tshuaj tiv thaiv kab mob tuaj yeem noj txhua hnub, tab sis cov neeg mob yuav tsum paub tseeb tias lawv tsis cuam tshuam nrog lwm cov tshuaj," hais Sandra Lin, MD, tus xibfwb thiab tus thawj coj ntawm Otolaryngology. -Head & Neck Surgery ntawm John Hopkins School of Medicine.
Yuav ua li cas cov tshuaj tiv thaiv thaiv histamines?
Mechanism: H1-antihistamines sib tw thaiv cov histamines los ntawm kev txuas mus rau histamine receptorsuas nyob ntawm cov hlab ntsha, cov leeg nqaij, endothelium, glandular cells, thiab mast cells.
Histamines ua dab tsi rau lub cev?
Histamine ua haujlwm nrog paj hlwb ua kom khaus. Hauv cov zaub mov tsis haum nws tuaj yeem ua rau ntuav thiab raws plab. Thiab nws constricts cov leeg nyob rau hauv lub ntsws, ua rau nws nyuaj rau ua pa. Kev txhawj xeeb tshaj plaws yog thaum histamine ua rau anaphylaxis, cov tshuaj tiv thaiv hnyav uas yuav ua rau tuag taus.
Yuav ua li cas cov tshuaj tiv thaiv kab mob ua haujlwm hauv hlwb?
Lawv ua haujlwm ntawm histamine receptor hauv lub hlwb thiab qaum qaum nrog rau lwm hom receptors. Qhov tseem ceeb tshaj plaws txog qhov notiam ntawm antihistamines yog tias lawv hla cov ntshav-hlwb barrier, uas ua rau tsaug zog.
