游ç??²ç?¶è?ºç?t4??é«??

?²ç?¶è?ºæ??ººä½???大ç??????æ³??ºä?ï¼?ä½?äº??²ç?¶è½¯éª¨ä?紧贴?¨æ?管ç?ä¸?ï¼???è½??????????±ä¸¤ä¾§å?¶å??峡é?¨ç???ï¼?å¹³å????????大约20-25gï¼?女æ?§ç?¥å¤§?¥é?????²ç?¶è?ºå???¢æ???²ç?¶æ??????????è¿?ç¥?ç»???è¡?液ä?åº???ä¸?ä¸?å·þ@?³å???¡å?¨è??ï¼???以ç?²ç?¶è?ºè?ä¾?è¾?丰å?ï¼??ºä???é¢?交æ??ç¥?ç»?????交æ??ç¥?ç»???è¿·èµ°ç¥?ç»?????ï¼??²ç?¶è?ºç??主è????½æ???????²ç?¶è?ºæ?ç´?ï¼?è°????ºä?代谢ï¼?ä¸???ººæ¯??¥é??©ä¸­çºþ=??100-200μg ???ºç??????©ï?ç»????????¸æ?¶å?¥è?å¾????è¿???为ç?²ç?¶è?ºæ????æµ?缩ï??ºä?ä¸?´®ç¢?çºþ?¸º?¨èº«??1/5??ç¢????©è??¥ç?????ï¼?ç»?è¿?æ°§å???¶ç??ä½????产ç??æ´»æ?§ç?è¿???ä¸??¶è´¨??ä¸????²ç?¶è?ºç?????½å??å­?ä¸?????°¨?¸å?ºç???ï¼?å½¢æ??ä¸?ç¢???°¨??MIT)??äº?ç¢???°¨??DIT)ï¼?ç¢?????°¨?¸é??è¿?æ°§å???¶ç??ä½????ä½?IT??DIT?¶è??ç»??????²ç?¶è?ºç?(T4)ï¼?MID??DIT?¶è??ç»?????ä¸?ç¢??²ç?¶è?ºå??æ°¨é??T3)ï¼?è´??äº??¶è´¨????ï¼????????²ç?¶è?ºç?(T4)??ä¸?ç¢??²ç?¶è?ºå??æ°¨é??T3)??æ³??³è?液循????ï¼?主è?ä¸?è¡?æµ?ä¸??²ç?¶è?ºç?ç»?????????TBG)ç»???ï¼?以å?©è½¬è¿???è°???è¡?ä¸??²ç?¶è?ºç???æµ?åºþ:???²ç?¶è?ºç?(T4)?¨å??¨ç?ç»?ç»??±ç?????½¢?????©æ´»?§è?强ç??T3???????©æ´»?§ç??rT3???±ä???ç¢???????°å?©ç?¨ã????ä»??¨ç?²ç?¶è?ºå???½äº¢è¿???è¡? T4??T3??rT3??å¢?é«?,???¨ç?²ç?¶è?ºå???½å????????ä¸?????ä½?äº?正常?¼ã???²ç?¶è?ºç???æ³????±å??ä½?ç»?????æ³???TSH??è¿??ºè?·é?¸ç??????cAMPç³»ç?è°???????TSH???±ä?ä¸?????æ³???TRH?§å?¶ï?ä»???å½¢æ??ä¸?ä¸???????ä½????²ç?¶è?ºè½´,è°????²ç?¶è?ºå???½ã??