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Pharmacological Enhancement of Adult Hippocampal Neurogenesis Improves Behavioral Pattern Separation in Young and Aged Male Mice.
Biol Psychiatry Glob Open Sci
March 2025
Department of Psychiatry, Division of Systems Neuroscience, Columbia University, New York State Psychiatric Institute, New York, New York.
Background: Impairments in behavioral pattern separation (BPS)-the ability to distinguish between similar contexts or experiences-contribute to memory interference and overgeneralization seen in many neuropsychiatric conditions, including depression, anxiety, posttraumatic stress disorder, dementia, and age-related cognitive decline. Although BPS relies on the dentate gyrus and is sensitive to changes in adult hippocampal neurogenesis, its significance as a pharmacological target has not been tested.
Methods: In this study, we applied a human neural stem cell high-throughput screening cascade to identify compounds that increase human neurogenesis.
Role of Adenosine A1 Receptor in Sleep Deprivation-Induced Neuroinflammation: Insights on Rapid Eye Movement Sleep and Fear Extinction Memory Recall in Rats.
Cureus
December 2024
School of Allied Health Sciences, Manav Rachna International Institute of Research and Studies, Faridabad, IND.
Introduction: Sleep deprivation (SD), stemming from a myriad of aetiologies, is a prevalent health condition frequently overlooked. It typically impairs memory consolidation and synaptic plasticity, potentially through neuroinflammatory mechanisms and adenosinergic signalling. It is still unclear whether the adenosine A1 receptor (A1R) modulates SD-induced neurological deficits in the hippocampus.
View Article and Find Full Text PDFAdult Neurogenesis in the Subventricular Zone of Patients with Huntington's and Parkinson's Diseases and following Long-Term Treatment with Deep Brain Stimulation.
Ann Neurol
January 2025
CERVO Brain Research Centre, Quebec City, Quebec, Canada.
Objective: Parkinson's and Huntington's diseases are characterized by progressive neuronal loss. Previous studies using human postmortem tissues have shown the impact of neurodegenerative disorders on adult neurogenesis. The extent to which adult neural stem cells are activated in the subventricular zone and whether therapeutic treatments such as deep brain stimulation promote adult neurogenesis remains unclear.
View Article and Find Full Text PDFAnatomy, histology and ultrastructure of the adult human olfactory peduncle: Blood vessel and corpora amylacea assessment.
Tissue Cell
January 2025
Neurogenesis and Neurostereology laboratory, Biomedicine Institute-UCLM, Institute of Health Research of Castilla-La Mancha (IDISCAM), University of Castilla-La Mancha, Albacete, Spain. Electronic address:
The mammalian olfactory system is responsible for processing environmental chemical stimuli and comprises several structures, including the olfactory epithelium, olfactory bulb, olfactory peduncle (OP), and olfactory cortices. Despite the critical role played by the OP in the conduction of olfactory information, it has remained understudied. In this work, optical, confocal, and electron microscopy were employed to examine the anatomy, histology, and ultrastructure of six human OP specimens (ages 37-84 years).
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