Results 41 to 50 of about 5,812 (218)

Distribution and postnatal development of chondroitin sulfate proteoglycans in the perineuronal nets of cholinergic motoneurons innervating extraocular muscles

open access: yesScientific Reports, 2022
Fine control of extraocular muscle fibers derives from two subpopulations of cholinergic motoneurons in the oculomotor-, trochlear- and abducens nuclei.
Adrienn Ritok   +7 more
doaj   +1 more source

The extracellular matrix and perineuronal nets in memory

open access: yesMolecular Psychiatry, 2022
AbstractAll components of the CNS are surrounded by a diffuse extracellular matrix (ECM) containing chondroitin sulphate proteoglycans (CSPGs), heparan sulphate proteoglycans (HSPGs), hyaluronan, various glycoproteins including tenascins and thrombospondin, and many other molecules that are secreted into the ECM and bind to ECM components. In addition,
Fawcett, James W   +5 more
openaire   +6 more sources

Calretinin as a marker for premotor neurons involved in upgaze in human brainstem

open access: yesFrontiers in Neuroanatomy, 2015
Eye movements are generated by different premotor pathways. Damage to them can cause specific deficits of eye movements, such as saccades. For correlative clinico-anatomical post-mortem studies of cases with eye movement disorders it is essential to ...
Christopher eAdamczyk   +6 more
doaj   +1 more source

Cortical reorganization during adolescence: What the rat can tell us about the cellular basis

open access: yesDevelopmental Cognitive Neuroscience, 2020
The human cortex, particularly the prefrontal cortex, decreases in volume during adolescence which indicates considerable pruning. There is consistent evidence from human, monkey and rat tissue that synapses, dendritic spines and dendrites are pruned ...
Janice M. Juraska, Carly M. Drzewiecki
doaj   +1 more source

Neurogenesis mediated plasticity is associated with reduced neuronal activity in CA1 during context fear memory retrieval

open access: yesScientific Reports, 2022
Postnatal hippocampal neurogenesis has been demonstrated to affect learning and memory in numerous ways. Several studies have now demonstrated that increased neurogenesis can induce forgetting of memories acquired prior to the manipulation of ...
Alexandria Evans   +4 more
doaj   +1 more source

Hypothalamic Perineuronal Nets Are Regulated by Sex and Dietary Interventions

open access: yesFrontiers in Physiology, 2021
Perineuronal nets (PNNs) are widely present in the hypothalamus, and are thought to provide physical protection and ion buffering for neurons and regulate their synaptic plasticity and intracellular signaling.
Nan Zhang   +21 more
doaj   +1 more source

Proteoglycans in Perineuronal Nets.

open access: yesACTA HISTOCHEMICA ET CYTOCHEMICA, 1999
Proteoglycans are one of the major constituents of the extracellular matrix and cell membranes. In the brain, there are two major proteoglycans, chondroitin sulfate proteoglycans and heparan sulfate proteoglycans. In the adult mammalian central nervous system, some species of chondroitin sulfate proteoglycan are localized in the ‘perineuronal net ...
Fumiko Matsui   +2 more
openaire   +2 more sources

Otx2-PNN Interaction to Regulate Cortical Plasticity

open access: yesNeural Plasticity, 2016
The ability of the environment to shape cortical function is at its highest during critical periods of postnatal development. In the visual cortex, critical period onset is triggered by the maturation of parvalbumin inhibitory interneurons, which ...
Clémence Bernard, Alain Prochiantz
doaj   +1 more source

Component-specific reduction in perineuronal nets in senescence-accelerated mouse strains

open access: yesIBRO Neuroscience Reports, 2023
With increased life expectancy, age-related diseases are a significant health concern in Western societies. Animal models (e.g., rodents) have been used to understand age-related changes in brain function—particularly through the senescence-accelerated ...
Hiroshi Ueno   +7 more
doaj   +1 more source

Cortical fast-spiking parvalbumin interneurons enwrapped in the perineuronal net express the metallopeptidases Adamts8, Adamts15 and Neprilysin. [PDF]

open access: yes, 2014
The in situ hybridization Allen Mouse Brain Atlas was mined for proteases expressed in the somatosensory cerebral cortex. Among the 480 genes coding for protease/peptidases, only four were found enriched in cortical interneurons: Reln coding for reelin ...
A Bernard   +43 more
core   +2 more sources

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