Qhov txawv ntawm cortisol thiab epinephrine yog tias cortisol yog ib yam tshuaj uas tsim los ntawm adrenal cortex, thaum epinephrine yog ib yam tshuaj uas tsim los ntawm adrenal medulla.
Adrenal glands (suprarenal glands) yog cov qog me me, daim duab peb sab uas nyob rau saum ob lub raum. Lub luag haujlwm ntawm cov qog adrenal yog tsim cov tshuaj hormones tseem ceeb uas pab tswj cov ntsev sib npaug hauv cov ntshav thiab cov ntaub so ntswg, tswj ntshav siab, teb rau cov xwm txheej ntxhov siab, thiab tsim qee cov tshuaj hormones poj niam txiv neej. Lub adrenal cortex tsim cov tshuaj hormones uas tswj kev sib deev (androgens, estrogens), ntsev sib npaug hauv cov ntshav (aldosterone), thiab qab zib tshuav (cortisol). Ntawm qhov tod tes, adrenal medulla tsim cov tshuaj hormones koom nrog hauv kev sib ntaus sib tua lossis kev ya davhlau (epinephrine thiab norepinephrine).
Cortisol yog dab tsi?
Cortisol yog ib yam tshuaj uas tsim los ntawm adrenal cortex. Nws yog ib qho tshuaj steroid hauv chav kawm glucocorticoid. Feem ntau thaum nws siv los ua tshuaj, nws hu ua hydrocortisone. Cov tshuaj no yog tsim los ntawm ntau tus tsiaj. Feem ntau, Zona fasciculata ntawm adrenal cortex hauv cov qog adrenal tsim cortisol. Lwm cov ntaub so ntswg kuj tsim cortisol hauv cov khoom qis. Cortisol hormone tso tawm nrog lub voj voog ntev. Ntxiv mus, cortisol tso tawm nce ntxiv thaum muaj kev ntxhov siab thiab qis ntshav qabzib concentration.
Daim duab 01: Cortisol
Thawj tswj ntawm cortisol yog los ntawm pituitary caj pas peptide ACTH. ACTH tswj cortisol los ntawm kev tswj kev txav ntawm calcium mus rau hauv cortisol secreting lub hom phiaj. ACTH nyob rau hauv kev tswj hwm ntawm CRH (hypothalamic peptide corticotropin-tso cov tshuaj hormones), uas yog tswj hwm lub paj hlwb. Lub luag haujlwm tseem ceeb ntawm cortisol yog txhawm rau nce ntshav qab zib los ntawm gluconeogenesis, txo qis kev tiv thaiv kab mob, thiab pab txhawb cov metabolism hauv cov rog, protein, thiab carbohydrates. Tsis tas li ntawd, nws kuj txo cov pob txha tsim. Qee qhov kev kho mob muaj feem xyuam nrog kev tsim cov cortisol, xws li thawj hypercortisolism (Cushing's syndrome), theem nrab hypercortisolism (pituitary qog ua rau Cushing's kab mob, pseudo-Cushing's syndrome), thawj hypocortisolism (Addison's disease, Nelson's syndrome), thiab lwm yam hypocortisolism (pituitary qog)., Sheehan's Syndrome).
Epinephrine yog dab tsi?
Epinephrine (adrenaline) yog ib yam tshuaj uas tsim los ntawm adrenal medulla. Nws yog ib qho tshuaj hormone thiab tshuaj. Polish physiologist Napoleon Cybulski thawj zaug cais adrenaline nyob rau hauv 1895. Epinephrine feem ntau yog tsim los ntawm ob lub qog adrenal thiab los ntawm qee cov neurons hauv medulla oblongata. Cov tshuaj no koom nrog hauv kev tswj hwm kev ua haujlwm visceral xws li ua pa.
Daim duab 02: Epinephrine
Nws ua lub luag haujlwm tseem ceeb hauv kev sib ntaus sib tua los ntawm kev ua kom cov ntshav ntws mus rau cov leeg, cov zis ntawm lub plawv (los ntawm kev ua ntawm SA node), cov tub ntxhais kawm dilation teb, thiab cov ntshav qab zib. Epinephrine ua qhov no los ntawm kev khi rau adrenergic receptors zoo li alpha thiab beta receptors. Epinephrine muaj nyob rau hauv ntau yam tsiaj thiab qee cov kab mob ib leeg. Ntxiv mus, raws li kev siv tshuaj, epinephrine yog siv los kho ntau yam mob, nrog rau kev tsis haum tshuaj xws li anaphylaxis, mob plawv, thiab los ntshav. ACTH hormone thiab sympathetic paj hlwb txhawb lub synthesis ntawm epinephrine precursors los ntawm kev txhim kho cov kev ua ntawm tyrosine hydroxylase thiab dopamine β hydroxylase, ob tug tseem ceeb enzymes koom nyob rau hauv catecholamine synthesis.
Dab tsi zoo sib xws ntawm Cortisol thiab Epinephrine?
- Cortisol thiab epinephrine yog ob yam tshuaj hormones tsim los ntawm cov qog adrenal.
- Ob qho tshuaj hormones cuam tshuam rau kev ntxhov siab.
- Ob leeg cov tshuaj hormones tuaj yeem nce qib ntshav qab zib.
- Lawv tswj tau zoo los ntawm ACTH hormone.
- Txoj kev tsis zoo ntawm ob qho tib si cuam tshuam nrog cov kab mob.
Qhov txawv ntawm Cortisol thiab Epinephrine yog dab tsi?
Cortisol yog ib yam tshuaj uas tsim los ntawm adrenal cortex, thaum epinephrine yog ib yam tshuaj uas tsim los ntawm adrenal medulla. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm cortisol thiab epinephrine. Tsis tas li ntawd, cortisol yog ib qho tshuaj steroid, hos epinephrine yog peptide hormone.
Cov hauv qab no qhia txog qhov sib txawv ntawm cortisol thiab epinephrine hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Cortisol vs Epinephrine
Cortisol thiab epinephrine yog ob yam tshuaj hormones tsim los ntawm cov qog adrenal uas koom nrog hauv kev ntxhov siab. Cortisol yog cov tshuaj steroid uas tsim los ntawm adrenal cortex thaum epinephrine yog peptide hormone tsim los ntawm adrenal medulla. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm cortisol thiab epinephrine.
