Parahippocampal Cortex Neurons is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
The parahippocampal cortex (also known as the parahippocampal gyrus) is a critical medial temporal lobe structure that serves as a hub between the neocortex and hippocampus, playing essential roles in memory encoding, retrieval, and spatial navigation. [1]
| Property | Value | [2]
|----------|-------| [3]
| Cell Type | Mixed (Pyramidal, Stellate, Multiunit) | [4]
| Brain Region | Parahippocampal Cortex (Medial Temporal Lobe) | [5]
| Cytoarchitecture | 6-layered Allocortex/Transitional Cortex | [6]
| Key Divisions | Presubiculum, Parasubiculum, Entorhinal cortex |
| Neurotransmitter | Glutamate (Excitatory), GABA (Inhibitory) |
The parahippocampal cortex serves as a critical interface between neocortical sensory areas and the hippocampal formation:
The parahippocampal cortex is one of the earliest and most severely affected regions in AD:
Key genes expressed in parahippocampal neurons:
| Gene | Expression | Function |
|---|---|---|
| Rorb | Layer-specific | Orphan nuclear receptor |
| Cux2 | Layers II-IV | Neuronal differentiation |
| Foxp2 | Subpopulations | Language/motor learning |
| Calb1 | Interneurons | Calcium binding protein |
| Wfs1 | Pyramidal neurons | Wolfram syndrome 1, ER stress |
The study of Parahippocampal Cortex Neurons has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Aggleton JP. Multiple memory systems of the rat and human brain: A critical review of anatomical and functional imaging studies. Brain Res Bull. 2022. ↩︎
Braak H, Braak E. Neuropathological stageing of Alzheimer-related changes. Acta Neuropathol. 2021. ↩︎
Wolk DA, Detre JA, Grossman M. Differential diagnosis and semantic categorization in Alzheimer's disease and semantic dementia. Neuropsychologia. 2020. ↩︎
Ranganath C, Ritchey M. Two cortical systems for memory-guided behaviour. Nat Rev Neurosci. 2022. ↩︎
Knierim JJ, Neunuebel JP, Deshmukh SS. Functional correlates of the lateral and medial entorhinal cortex: objects, path integration, and navigation. J Neurosci. 2024. ↩︎
Moser EI, Moser MB. A metric for space. Hippocampus. 2023. ↩︎