Vardarl I, Wdowinski J M, Hoevels J, Schmidt R, Schwedes U, Georgi M, Usadel K H
Klin Wochenschr. 1987 Feb 2;65(3):134-7. doi: 10.1007/BF01728606.
Endogenous TRH levels were determined in plasma obtained selectively via percutaneous transhepatic and femoral catheterization. TRH was measured using a very sensitive RIA method. In the pancreatic veins, internal jugular vein, left testicular vein, and other described veins, normal peripheral levels were found. An involvement of the TRH degrading enzyme (TDE) or a rapid intravasal dilution leading to normal peripheral TRH levels in the veins leaving the brain or pancreas, respectively, is discussed.
通过经皮肝穿刺和股静脉插管选择性获取血浆，测定内源性促甲状腺激素释放激素（TRH）水平。采用非常灵敏的放射免疫分析（RIA）方法测量TRH。在胰腺静脉、颈内静脉、左侧睾丸静脉以及其他所述静脉中，均发现外周血TRH水平正常。文中讨论了TRH降解酶（TDE）的作用，或分别导致离开脑或胰腺的静脉中TRH外周血水平正常的快速血管内稀释作用。
