Calcium binding protein immunoreactivity in a reptilian thalamic reticular nucleus.
Immunoreactivity to antisera directed against a variety of calcium binding proteins was investigated in the thalamic reticular nucleus of one species of reptiles, Caiman crocodilus. Cells and fibers were immunoreactive for parvalbumin whereas fibers but not neurons were immunoreactive for calbindin and calcitonin gene related peptide. These data support the observations that Caiman thalamic reticular nucleus contains at least two neuronal populations. One group, whose cells are immunoreactive for parvalbumin, forms at least part of the projection to the dorsal thalamus. The other group, which contains qualitatively different and sparser number of neurons, is immunoreactive for glutamic acid decarboxylase.
Division of Neurological Surgery, California College of Medicine, University of California Irvine Medical Center, Orange 92668.
M B
MB
Pritz
M E
ME
Stritzel
D000489:Alligators and Crocodiles / Q000033:anatomy & histology*; D000818:Animals; D064026:Calbindins; D015740:Calcitonin Gene-Related Peptide / Q000032:analysis; D002135:Calcium-Binding Proteins / Q000032:analysis*; D007150:Immunohistochemistry; D009474:Neurons / Q000166:cytology*; D010320:Parvalbumins / Q000032:analysis; D064030:S100 Calcium Binding Protein G / Q000032:analysis*; D013787:Thalamic Nuclei / Q000033:anatomy & histology* / Q000166:cytology; D013788:Thalamus / Q000033:anatomy & histology / Q000166:cytology
D064026:Calbindins; D002135:Calcium-Binding Proteins; D010320:Parvalbumins; D064030:S100 Calcium Binding Protein G; D015740:Calcitonin Gene-Related Peptide