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Calretinin is a calcium-binding protein related to calbindin-D28k; both are present in different though overlapping sets of neurons in brains of birds and mammals. We describe in detail the pattern of calretinin immunoreactivity in the rat brain. As in chick brain, calretinin immunoreactivity is abundant in various sensory pathways (particularly certain(More)
Calretinin and calbindin-D28k are homologous calcium-binding proteins, each present in a variety of neurons in the brain. Their distributions in the rat brain have been compared at the cellular level to determine whether they tend to occur in the same or in different cells, and to determine whether calbindin-positive cells show any common features once(More)
The distribution of the calcium-binding protein calretinin was investigated by immunohistochemistry in the hippocampus, the subicular areas, and the entorhinal cortex in patients with Alzheimer's disease and in control subjects. By double immunolabelling, the calretinin immunoreactivity was compared to the immunoreactivity for beta/A4 amyloid or for tau(More)
GTPCH-I immunoreactive structures in the rat brain were studied using a polyclonal antibody raised in the chick. General mapping was made using the avidin-biotin-peroxidase technique and compared with the distribution of tyrosine hydroxylase and serotonin immunoreactivities. Double immunofluorescence was performed in order to establish real intracellular(More)
The lurcher mutation induces Purkinje cell degeneration in heterozygous mice, and neonatal death in homozygous animals. Using the D6Mit16 Simple Sequence Length Polymorphic marker in F2 hybrids between AKR +/+ mice and B6+/Lc mice, homozygous lurcher fetuses and newborns as well as heterozygous and normal littermates were identified, and their brain(More)
Two puppies, a 4-month-old female Maltese terrier and a 6-week-old male Great Pyrenean, were presented for confirmation of bilateral deafness by electrophysiological testing. In both puppies, brainstem auditory potentials were not evoked by 90 dB NHL click stimulation of each ear. Examination of the inner ear revealed a bilateral cochleo-saccular(More)
Calbindin 28K and calretinin are very similar calcium binding proteins which are both present in the central nervous system (CNS). They respectively bind 4 and 5 Ca++ ions. We have compared by immunohistochemistry and in situ hybridization their localisation in the brain and the retina. The two proteins are generally expressed in different neurons with a(More)
Three 4-month-old kittens from the same litter were presented, two of which were exhibiting cerebellar signs. Euthanasia was requested. No cerebellum atrophy was disclosed on necropsy. General cerebellar anatomy was normal, including the thickness of the cortical layers, myelination, and neurons of the deep cerebellar nuclei. In the ataxic cat vermis,(More)
Three cases of feline cerebellar hypoplasia are presented. At the time of examination, the ages of the cats ranged from 2 months to 1 year. Necropsy revealed cerebellar and pons hypoplasia. Polymerase chain reaction for parvoviral deoxyribonucleic acid was positive in cerebellar tissue. Cell-specific immunolabeling was used to characterize the lesions,(More)