6533b86efe1ef96bd12cc87d
RESEARCH PRODUCT
Zinc accumulation in the telencephalon of lizards.
A. MolownyJ. Martinez-calatayudM. J. JuanFrancisco José Martínez-guijarroCarlos Lopez-garciasubject
TelencephalonHistologyCentral nervous systemchemistry.chemical_elementZincPodarcis hispanicaMidbrainMesencephalonbiology.animalmedicineLacertaAnimalsSauriaMolecular BiologybiologyCerebrumLizardSpectrophotometry AtomicLizardsCell BiologyGeneral MedicineAnatomybiology.organism_classificationMolecular biologyMedical Laboratory TechnologyZincmedicine.anatomical_structurechemistryAnatomyGeneral Agricultural and Biological SciencesBrain Stemdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1987-01-01 | Histochemistry |