Thyroxine:- Cov tshuaj hormones no ua lub luag haujlwm tseem ceeb hauv kev tswj hwm tus nqi metabolic basal (BMR). Cov thyroid hormones ua kom cov metabolism hauv lub cev thiab yog li ntawd,txhim kho cov cua sov (calorigenic effect) thiab tswj BMR (basal metabolic rate). Yog li qhov kev xaiv no yog lawm.
Puas yog cov thyroid hormones Calorigenic?
Cov txiaj ntsig no qhia tias cov thyroid hormones txhawb nqa NaK-ATPase kev ua haujlwm sib txawv. Cov nyhuv no yuav suav nrog, tsawg kawg yog ib feem, rau cov teebmeem calorigenic ntawm cov tshuaj hormones.
Cov tshuaj hormone twg tseem hu ua thyroxine?
Cov thyroid caj pas yog ib feem tseem ceeb ntawm cov kab mob endocrine, zais ntau cov tshuaj hormones uas cuam tshuam txhua yam ntawm lub plawv noj qab haus huv mus rau cov metabolism. Ib qho ntawm cov tshuaj hormones no yog thyroxine, tseem hu ua T4. Vim muaj ntau txoj haujlwm uas thyroxine cuam tshuam, nws suav hais tias yog ib qho tseem ceeb tshaj plaws ntawm cov thyroid hormones.
YPuas yog thyroxine yog hydrophobic hormone?
Cov tshuaj steroids thiab cov thyroid hormone yog lipid soluble. Tag nrho lwm cov amino acid-derived hormones yog dej soluble. Hydrophobic hormones muaj peev xwm kis tau los ntawm daim nyias nyias thiab cuam tshuam nrog cov receptor intracellular.
Vim li cas cov thyroid hormone lipophilic?
Cov thyroid hormones yog li cov lipophilic molecules siab heev vim rau iodinated aromatic rings. Txawm tias lawv lipophilicity, cellularuptake ntawm cov thyroid hormones yog cuam tshuam los ntawm lub zog dependant, carrier-mediated txheej txheem [5]. Ntxiv mus, iodothyronines yog ib txwm muaj nyob rau hauv cov kab mob lom [6].
