Results 41 to 50 of about 7,186,907 (267)

CD44s and CD44v6 Expression in Head and Neck Epithelia [PDF]

open access: yes, 2008
Background: CD44 splice variants are long-known as being associated with cell transformation. Recently, the standard form of CD44 (CD44s) was shown to be part of the signature of cancer stem cells (CSCs) in colon, breast, and in head and neck squamous ...
Olivier Gires   +7 more
core   +2 more sources

Activity dependent feedback inhibition may maintain head direction signals in mouse presubiculum

open access: yesNature Communications, 2017
Head direction is encoded by cells in the presubiculum, but the role of local circuitry in head direction encoding remains unknown. Here the authors demonstrate how a specific inhibitory neuron type, the Martinotti cell, together with excitatory ...
Jean Simonnet   +7 more
doaj   +1 more source

Ontogeny of neural circuits underlying spatial memory in the rat [PDF]

open access: yes, 2012
Spatial memory is a well-characterized psychological function in both humans and rodents. The combined computations of a network of systems including place cells in the hippocampus, grid cells in the medial entorhinal cortex and head direction cells ...
Langston, Rosamund F.; id_orcid   +7 more
core   +1 more source

Planar cell polarity: Heading in the right direction [PDF]

open access: yesDevelopmental Dynamics, 2005
AbstractEpithelial cells are patterned not only along their apical–basolateral axis, but also along the plane of the epithelial sheet; the latter event is regulated by the planar cell polarity (PCP) pathway. PCP regulates diverse outputs, such as the distal placement of a hair in all cells of the Drosophila wing, and convergent extension movements ...
openaire   +2 more sources

Phase Precession Relative to Turning Angle in Theta-Modulated Head Direction Cells. [PDF]

open access: yesHippocampus
Grid and place cells typically fire at progressively earlier phases within each cycle of the theta rhythm as rodents run across their firing fields, a phenomenon known as theta phase precession.
Ji Z   +4 more
europepmc   +3 more sources

Why Isn’t the Head Direction System Necessary for Direction? Lessons From the Lateral Mammillary Nuclei

open access: yesFrontiers in Neural Circuits, 2019
Complex spatial representations in the hippocampal formation and related cortical areas require input from the head direction system. However, a recurrent finding is that behavior apparently supported by these spatial representations does not appear to ...
Christopher M. Dillingham   +1 more
doaj   +1 more source

Angular and linear speed cells in the parahippocampal circuits

open access: yesNature Communications, 2022
It remains unclear how the hippocampal region integrates position and self-motion information to update spatial representations. Here, the authors report grid and head direction cells as well as cells encoding self-motion parameters such as angular head ...
Davide Spalla   +2 more
doaj   +1 more source

The emergence of Pax7-expressing muscle stem cells during vertebrate head muscle development [PDF]

open access: yes, 2015
Pax7 expressing muscle stem cells accompany all skeletal muscles in the body and in healthy individuals, efficiently repair muscle after injury. Currently, the in vitro manipulation and culture of these cells is still in its infancy, yet muscle stem ...
Erika C. Jorge   +23 more
core   +1 more source

Tiltable objective microscope visualizes selectivity for head motion direction and dynamics in zebrafish vestibular system

open access: yesNature Communications, 2022
Signals about head orientation and movement in the vestibular periphery are fundamental to the sense of balance and motion, but difficult to measure systematically during head motion.
Masashi Tanimoto   +2 more
doaj   +1 more source

Head direction cells: properties and functional significance

open access: yesCurrent Opinion in Neurobiology, 1996
The strong signal carried by head direction cells in the postsubiculum complements the positional signal carried by hippocampal place cells; together, the directional and positional signals provide the information necessary to permit rats to generate and carry out intelligent, efficient solutions to spatial problems. Our opinion is that the hippocampal
R U, Muller, J B, Ranck, J S, Taube
openaire   +2 more sources

Home - About - Disclaimer - Privacy