Molowny A, Martinez-Calatayud J, Juan M J, Martinez-Guijarro F J, Lopez-Garcia C
Histochemistry. 1987;86(3):311-4. doi: 10.1007/BF00490264.
The zinc concentration in the brains of two species of lizard was determined by atomic-absorption spectrophotometry. The zinc concentration was found to be highest in the telencephalon of Lacerta galloti (21.1 micrograms/g fresh weight) and Podarcis hispanica (16.77 +/- 0.8 micrograms/g) while the mesencephalon and brain stem exhibited lower zinc concentrations, i.e., 7.0 micrograms/g in Lacerta galloti and 6.08 +/- 0.4 micrograms/g in Podarcis hispanica. This high telencephalic concentration of zinc is paralleled by intense and well-defined Timm reactivity used for demonstrating the presence of zinc-containing boutons at the light-microscope level. Volumetric-densitometric studies of these Timm-reactive zones were performed using serial transverse sections of the same lizard brains.
通过原子吸收分光光度法测定了两种蜥蜴大脑中的锌浓度。结果发现，加氏蜥蜴（Lacerta galloti）端脑的锌浓度最高（21.1微克/克鲜重），西班牙壁蜥（Podarcis hispanica）端脑的锌浓度为16.77±0.8微克/克，而中脑和脑干的锌浓度较低，即加氏蜥蜴中脑为7.0微克/克，西班牙壁蜥中脑为6.08±0.4微克/克。锌在端脑中的高浓度与用于在光学显微镜水平显示含锌终扣存在的强烈且明确的Timm反应性相平行。使用相同蜥蜴大脑的连续横切片对这些Timm反应区进行了体积密度测定研究。
