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Wednesday, July 29, 2020 | History

2 edition of Learning-associated ultrastructural change in the adult rat hippocampus found in the catalog.

Learning-associated ultrastructural change in the adult rat hippocampus

Cormac O"Connell

Learning-associated ultrastructural change in the adult rat hippocampus

by Cormac O"Connell

  • 330 Want to read
  • 34 Currently reading

Published by University College Dublin in Dublin .
Written in English

    Subjects:
  • Hippocampus (Brain) -- Physiology.,
  • Memory.,
  • Neuropharmacology.,
  • Rats as laboratory animals.

  • Edition Notes

    Statementby Cormac O"Connell.
    ContributionsUniversity College Dublin. Department of Pharmacology.
    The Physical Object
    Paginationvii, 137p., [36]p. of plates :
    Number of Pages137
    ID Numbers
    Open LibraryOL17415649M

    The Hippocampus Book promises to facilitate developments in the field in a major way by bringing together, for the first time, contributions by leading internat Long known to be important for memory, it has been a prime focus of neuroscience research for many years/5. Ultrastructural Distribution of the 7 Nicotinic Acetylcholine Receptor Subunit in Rat Hippocampus Ruth Fabian-Fine,1,2 Paul Skehel,2 Mick L. Errington,2 Heather A. Davies,1 Emanuele Sher,3 Michael G. Stewart,1 and Alan Fine2,4 1Department of Biological Sciences, The Open University, Milton Keynes, MK7 6AA, United Kingdom, 2Division of Neurophysiology, National Institute for Medical Research.

      Similarly, restraint stress induced ultrastructural changes in endothelial cells have not been described before in the frontal cortex and hippocampus. Our electron microscopical observations demonstrated morphological changes of brain endothelial cells in all stressed by: The present study was planned to demonstrate the detailed immunoreactive (IR) distribution pattern of estrogen receptors (ER) in GABAergic neurons of hippocampus. The study was conducted in adult female Wistar rats in estrous phase. 30 µm thick cryostat sections of hippocampal region were obtained from perfusion fixed (with 4% buffered Para formaldehyde) adult female rats (n = 15).Cited by: 2.

    HippoCampus courses were designed to address the AP College Board criteria. However, as with any teaching resource, they should not be considered a singular solution, but can be used as a good foundation for an AP teaching curriculum. The courses at HippoCampus have not currently been mapped to the CLEP and DANTE tests. Excitatory Amino Acids and Neuronal Plasticity It seems that you're in USA. We have a dedicated site for USA. Search Transplantation of Developing Hippocampal Neurons to Ischemic and Excitotoxic Lesions of the Adult Rat Hippocampus. Pages Excitatory Amino Acids and Neuronal Plasticity Editors.


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Learning-associated ultrastructural change in the adult rat hippocampus by Cormac O"Connell Download PDF EPUB FB2

Comparison of ultrastructural features in hyperchromatic and normochromatic cells in the dorsal crest of the adult rat dentate gyrus at 6 h following passive avoidance training.

Panel A illustrates nuclear and cytoplasmic features and Panel B, at the higher resolution, their associated ribosomes (arrows).Cited by: Ultrastructural observations using electron microscopy performed on the neurons, glial cells, and synapses, in the hippocampal CA1 region of epileptic brains, demonstrated the following major changes over normal control brain tissue.

(i) There is ultrastructural alterations in some neurons, glial cells and synapses in the hippocampal CA1 by: 7. However, adrenalectomy (ADX) induced cell death in the hippocampal formation of the adult rat is a recently described phenomenon.

We undertook this ultrastructural study on long-term adrenalectomized (5 months) rats to investigate the mode of cell death in the hippocampus. Our results showed apoptotic changes in the by: 6. Kadar T, Silbermann M, Brandeis R, Levy () Age-related structural changes in the rat hippocampus: correlation with working memory deficiency.

Brain Res – Google Scholar Klosen P, van den Bosch de Aguilar Ph () Paired helical filament-like inclusions and Hirano bodies in the mesencephalic nucleus of the trigeminal nerve in Cited by: The book also provides the most current reviews of how adult hippocampal neurogenesis influences the pathogenesis of mood disorders, addiction, and key neurological disorders.

This book is the ideal resource for researchers and advanced graduates seeking focused knowledge on the role of adult neurogenesis in brain health and disease. Hippocampus-Dependent Learning Is Associated With Adult Neurogenesis in MRL/MpJ Mice Sandrine Thuret,1,2 Nicolas Toni,1 Stefan Aigner,1 Gene W.

Yeo,1 and Fred H. Gage1* ABSTRACT: The hippocampus is involved in declarative memory and produces new neurons throughout adulthood. Numerous experiments. Within the middle molecular layer, as well as the outer and inner layer of the adult rat, a second type of contact exists which is far less prevalent than the asymmet- ric contact on spines.

This second type forms a synapse on large dendritic shafts which are consistently symmetric and closely adhere to the classification of a Gray type II by: The Hippocampal Formation and Memory 13 More Direct Evidence for Hippocampal Involvement in Memory 13 The Hippocampus as a Cognitive Map 16 Conclusions 16 Special Features of Hippocampal Anatomy and Neurobiology 16 Early Neuroanatomical Studies of the Hippocampus 17 New Fiber Tracing Methods Harris KM, Jensen FE, Tsao B () Three-dimensional structure of dendritic spines and synapses in rat hippocampus (CA1) at postnatal day 15 and adult ages: implications for the maturation of synaptic physiology and long-term potentiation.

J Neurosci – PubMed Google ScholarCited by: 8. dritic spines and synapses in rat hippocampus (CA1) at postnatal day 15 and adult ages: implications for the maturation of synaptic physiology and long-term potentiation.

The role of adult astrocytes in the removal of cell debris and foreign particles following injury to the brain is controversial. This study was undertaken to elucidate the response of adult astrocytes to needle injury of the rat cerebral cortex, using a suspension of colloidal carbon as a marker for by: The Hippocampus as a Model for Studying Anatomical Plasticity in the Adult Brain.

Authors; Authors and affiliations; Gary Lynch J. Glutamate Decarboxylase In The Rat Hippocampal Region After Lesions Of The Afferent Fiber Systems: Evidence That The Enzyme Is Localized In Intrinsic Neurones.

() The Hippocampus as a Model for Studying Cited by: the hippocampal formation: the head direction (HD) cell and the grid cell. The HD cell is sensitive to the orientation of the rat’s head with respect to the environmental frame,irrespective of the animal’s location in that environment. These cells have been found in several regions, most notably the anterior thal-amus and dorsal presubiculum.

Another potential difference between rat and human low frequency oscillations is the qualitative observation that human oscillations often occur in short bursts (Cantero et al., ) rather than as a nearly continuous signal in rodents (Vanderwolf, ), although intracranially recorded raw traces from the hippocampus (Ekstrom et al., Cited by: In book: Encyclopedia of Stress, pp The ultrastructural changes of neurons following in situ injection of biotenic acid into the adult rat hippocampus were investigated.

Independent. Dynamic Expression of the Polysialyltransferase in Adult Rat Hippocampus Performing an Olfactory Associative Task Article in Hippocampus 24(8) August with 43 Reads How we measure 'reads'. "The Hippocampus Book is--in a word--masterful.

It is a work of deep scholarship, a labor of love delivered by a group of scientists who have devoted much of their working lives to the pursuit of understanding this brain system.4/4(8).

Background: Alzheimer’s disease (AD) is a neurodegenerative disorder with progressive loss of cognitive abilities and memory aim of this study was to compare neuropathological changes in hippocampus and brain cortex in a rat model of AD.

Methods: Adult male Albino Wistar rats (weighing g) were used for behavioral and histopathological studies.

1. It has been discussed for over years whether short-term memory (STM) is separate from, or just an early phase of, long-term memory (LTM). The only way to solve this dilemma is to find out at least one treatment that blocks STM while keeping LTM intact for the same task in the same animal.

The effect of a large number of treatments infused into the hippocampus, amygdala, and Cited by: Reversible changes in hippocampal CA1 synapses associated with water maze training in rats Article in Synapse 59(3) March with 32 Reads How we measure 'reads'.

Several lines of evidence indicate that glutamate NMDA receptors are critically involved in long-term potentiation (LTP) and in certain forms of learning. It was previously demonstrated that memory formation of an inhibitory avoidance task in chick is specifically associated with an increase in the density of NMDA receptor in selected brain by:   There is extensive evidence indicating that new neurons are generated in the dentate gyrus of the adult mammalian hippocampus, a region of the brain that is important for learning and memory1,2,3,4,5.the resin permittedthe hippocampusto beexcised from the brain slices and re-embedded in resin-filled capsules.

Using an ultra-microtome, we identified the re-embedded hippocampus and isolated the dentate gyms; semi-thin sections were taken. In serial sections stainedwith 1%toluidine, the changing form ofthe granule cell layer could be discerned.