This protocol describes a method for registration of cortical retinotopic map with cytochrome c oxidase (CO) labeled architectonic maps of the same mouse brain through the alignment of vascular fiducials. By recording surface blood vessel pattern and sequential alignment at each step, this method overcomes the challenge imposed by tissue distortion during perfusion, mounting, sectioning and histology procedures. This method can also be generalized to register and align other types of functional maps like ocular dominance map and spatial/temporal frequency tuning map with various anatomical maps of mouse cortex.
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http://dx.doi.org/10.21769/BioProtoc.2731 | DOI Listing |
Neuromolecular Med
December 2024
Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, Changsha, 410012, China.
Alzheimer's disease (AD) is the most common neurodegenerative disorder. The neuropathology of AD appears in the hippocampus. The purpose of this work was to reveal key differentially expressed genes (DEGs) in the hippocampus of AD patients and healthy individuals.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Cornell University, Ithaca, NY, USA.
Background: Spatial disorientation is an early symptom of Alzheimer's disease (AD). The hippocampus creates a cognitive map, wherein cells form firing fields in specific locations within an environment, termed place cells. Critically, place cells remain stable across visits to an environment, but change their firing rate or field location in a different environment.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
PCM Consulting, Pathways Connectivity Maps Inc., Mountain View, CA, USA.
Background: High-throughput assays have attracted significant attention in Alzheimer's Disease (AD) research, especially for enabling rapid diagnostics screening for factors at the molecular level contributing to the disease recurrence. With advances in laboratory automation, there is a growing need for quality pre-clinical data. Assays such as Microarrays, Proteomics, or AI are all dependent on high-quality input data that serve as a starting point.
View Article and Find Full Text PDFBehav Brain Funct
January 2025
Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada.
Gene-environment interactions in the postnatal period have a long-term impact on neurodevelopment. To effectively assess neurodevelopment in the mouse, we developed a behavioural pipeline that incorporates several validated behavioural tests to measure translationally relevant milestones of behaviour in mice. The behavioral phenotype of 1060 wild type and genetically-modified mice was examined followed by structural brain imaging at 4 weeks of age.
View Article and Find Full Text PDFNature
January 2025
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY, USA.
Accurate goal-directed behaviour requires the sense of touch to be integrated with information about body position and ongoing motion. Behaviours such as chewing, swallowing and speech critically depend on precise tactile events on a rapidly moving tongue, but neural circuits for dynamic touch-guided tongue control are unknown. Here, using high-speed videography, we examined three-dimensional lingual kinematics as mice drank from a water spout that unexpectedly changed position during licking, requiring re-aiming in response to subtle contact events on the left, centre or right surface of the tongue.
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