[精品]生殖内分泌学.ppt
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1、生殖內分泌學生殖內分泌學內分泌學概論n外分泌腺(有管腺)n汗腺、乳腺、唾液腺。n內分泌腺(無管腺)n下視丘、腦下腺、甲狀腺、副甲狀腺、腎上腺、性腺、松果腺、胰臟、胸腺。人體的內分泌腺分泌的種類分泌的種類nAutocrine:a mode of hormone action in which a hormone binds to receptors on and affects the function of the cell type that produced it.nParacrine:a type of hormone function in which hormone synthesi
2、zed in and released from endocrine cells binds to its receptor in nearby cells of a different type and affects their function.nEndocrine:applied to organs and structures that release their products into the blood or lymph,and to substances(hormones)that exert specific effects on other organs.荷爾蒙的種類n
3、固醇類(steroid)n三個六碳環與一個五碳環nCortisol,testosterone,progesterone,estrogennPolypeptides&醣蛋白類(glycoprotein)nPolypeptides:ADH,insulin,oxytocinnglycoprotein:TSHnAminesnEpinephrine,norepinephrine,T3,T4荷爾蒙的種類Endocrine 的作用機轉Receptor vs Target cellEndocrine 的作用機轉n固醇類激素 n脂溶性nReceptor 在細胞質內nEstrogen-receptor compl
4、exnEstrogen-receptor complex/DNAnDNARNAnRNAProteinnProteinreactionnPolypeptides激素n水溶性nReceptor 在細胞核內nT4 T3 T3-binding proteinnT3/DNAnDNARNAnRNAProteinnProteinreactionEndocrine 的作用機轉Endocrine 的作用機轉Endocrine 的作用機轉nAmines類激素 n水溶性nReceptor 在細胞膜內nPrimary messengersecondary messenger ncAMP(環單磷酸腺甘酸)ncGMP(環
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