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Literature DB >> 1025152

Membrane specializations of dentritic spines and glia in the weaver mouse cerebellum: a freeze-fracture study.

Abstract

Electron microscopy of thin-sectioned and freeze-fractured preparations of the cerebellum of the weaver mouse indicates that the dendritic spines are morphologically identical to those of their normal littermates. The weaver dendritic spines have been characterized as "unattached" since the synaptic input from the parallel fibers is absent (8-10). The entire region around the dendritic spines is taken up by astrocytic processes in the weaver. The outer fracture face of a normal dendritic spine contains aggregations of 10-nm wide particles in the immediate postsynaptic region. Similar particle aggregations occur in the unattached spines of the weaver. Freeze-fracture preparations reveal rectilinear arrays of particles, having a 7-nm center-to-center distance in the glial membranes. Rectilinear arrays are apparently distributed throughout the astrocyte membrane.

Entities: Species

Mesh：

Year: 1976 PMID： 1025152 PMCID： PMC2109662 DOI： 10.1083/jcb.68.3.403

Source DB: PubMed Journal: J Cell Biol ISSN： 0021-9525 Impact factor: 10.539

23 in total

1. The ontogenetic development of synaptic junctions, synaptic activation and responsiveness to neurotransmitter substances in rat cerebellar purkinje cells.

Authors: D J Woodward; B J Hoffer; G R Siggins; F E Bloom
Journal: Brain Res Date: 1971-11 Impact factor: 3.252

2. Sequence of developmental abnormalities leading to granule cell deficit in cerebellar cortex of weaver mutant mice.

Authors: P Rakic; R L Sidman
Journal: J Comp Neurol Date: 1973-11-15 Impact factor: 3.215

3. The organization of paramembranous densities during postnatal maturation of synaptic junctions in the cerebral cortex.

Authors: A M Adinolfi
Journal: Exp Neurol Date: 1972-03 Impact factor: 5.330

Review 4. Contributions of new impregnation methods and freeze etching to the problems of synaptic fine structure.

Authors: K Akert; H Moor; K Pfenninger; C Sandri
Journal: Prog Brain Res Date: 1969 Impact factor: 2.453

5. Three types of gap junctions interconnecting intestinal epithelial cells visualized by freeze-etching.

Authors: L A Staehelin
Journal: Proc Natl Acad Sci U S A Date: 1972-05 Impact factor: 11.205

6. Neuronal circuit reorganization in mammalian agranular cerebellar cortex.

Authors: R Llinás; D E Hillman; W Precht
Journal: J Neurobiol Date: 1973

7. Weaver mutant mouse cerebellum: defective neuronal migration secondary to abnormality of Bergmann glia.

Authors: P Rakic; R L Sidman
Journal: Proc Natl Acad Sci U S A Date: 1973-01 Impact factor: 11.205

8. Cerebellar alterations in the weaver mouse.

Authors: A Hirano; H M Dembitzer
Journal: J Cell Biol Date: 1973-02 Impact factor: 10.539

9. Studies of excitable membranes. I. Macromolecular specializations of the neuromuscular junction and the nonjunctional sarcolemma.

Authors: J E Rash; M H Ellisman
Journal: J Cell Biol Date: 1974-11 Impact factor: 10.539

7. The development of membrane specializations in the receptor-bipolar-horizontal cell synapse of the chick embryo retina. A freeze-fracture study.

Authors: K Meller; W Tetzlaff
Journal: Cell Tissue Res Date: 1977-07-15 Impact factor: 5.249

8. Retinoblastoma Y79 cell line: a study of membrane structures.

Authors: A L Green; E S Meek; D W White; R H Stevens; L D Ackerman; G F Judisch; S R Patil
Journal: Albrecht Von Graefes Arch Klin Exp Ophthalmol Date: 1979-10

9. Cytoplasmic organization in cerebellar dendritic spines.

Authors: D M Landis; T S Reese
Journal: J Cell Biol Date: 1983-10 Impact factor: 10.539

10. Disappearance of afferent and efferent nerve terminals in the inner ear of the chick embryo after chronic treatment with beta-bungarotoxin.

Authors: N Hirokawa
Journal: J Cell Biol Date: 1977-04 Impact factor: 10.539

10 in total

Membrane specializations of dentritic spines and glia in the weaver mouse cerebellum: a freeze-fracture study.

1. The ontogenetic development of synaptic junctions, synaptic activation and responsiveness to neurotransmitter substances in rat cerebellar purkinje cells.

2. Sequence of developmental abnormalities leading to granule cell deficit in cerebellar cortex of weaver mutant mice.

3. The organization of paramembranous densities during postnatal maturation of synaptic junctions in the cerebral cortex.

Review 4. Contributions of new impregnation methods and freeze etching to the problems of synaptic fine structure.

5. Three types of gap junctions interconnecting intestinal epithelial cells visualized by freeze-etching.

6. Neuronal circuit reorganization in mammalian agranular cerebellar cortex.

7. Weaver mutant mouse cerebellum: defective neuronal migration secondary to abnormality of Bergmann glia.

8. Cerebellar alterations in the weaver mouse.

9. Studies of excitable membranes. I. Macromolecular specializations of the neuromuscular junction and the nonjunctional sarcolemma.

10. Improvements in epoxy resin embedding methods.

1. Intramembrane particle distribution and lectin binding of glioblastoma cells after long term subculture.

2. Specific synaptic systems in reaggregated spherules from dissociated chick cerebellum cultivated in vitro.

3. Communicating junctions of the human sensory retina. A freeze-fracture study.

4. Three-dimensional analysis of dendritic spines. III. Glial sheath.

5. Non-synaptic membrane specializations on the necks of Purkinje cell dentritic spines.

6. Development of Purkinje cell somatic spines in the weaver mouse.

7. The development of membrane specializations in the receptor-bipolar-horizontal cell synapse of the chick embryo retina. A freeze-fracture study.

8. Retinoblastoma Y79 cell line: a study of membrane structures.

9. Cytoplasmic organization in cerebellar dendritic spines.

10. Disappearance of afferent and efferent nerve terminals in the inner ear of the chick embryo after chronic treatment with beta-bungarotoxin.