Related Experiment Video
Updated: Sep 3, 2026

Preparation of Acute Hippocampal Slices from Rats and Transgenic Mice for the Study of Synaptic Alterations during Aging and Amyloid Pathology
Published on: March 23, 2011
Regionally specific loss of neurons in the aging human hippocampus
1Stereological Research Laboratory, University of Aarhus, Denmark.
Abstract:
New highly-accurate stereological methods for estimating the total numbers of neurons in brain structures have been used to test for age-related neuron loss in the human hippocampal formation. Across the age range of 13 to 85 years, there was a substantial loss of neurons in the subiculum (52%) and in the hilus of the dentate gyrus (31%); the three remaining hippocampal subdivisions showed no significant change. These losses qualify as potential morphological correlates of senescent decline in relational memory in that they can be expected to compromise the functional integrity of a region of the brain known to be intimately involved in this type of memory. The regional pattern of neuron loss is similar in certain respects to the patterns of cell loss seen during the initial phases of ischemia and epilepsy and is fundamentally different from the pattern associated with Alzheimer's disease.
More Related Videos
14:27Investigating Long-term Synaptic Plasticity in Interlamellar Hippocampus CA1 by Electrophysiological Field Recording
Published on: August 11, 2019
08:16Fluorescence-Activated Nuclei Negative Sorting of Neurons Combined with Single Nuclei RNA Sequencing to Study the Hippocampal Neurogenic Niche
Published on: October 20, 2022
Related Concept Videos
Role of Hippocampus in Memory
Alzheimer Disease l: Introduction
Alzheimer Disease ll: Pathophysiology
Dementia l: Introduction