Results 1 to 10 of about 158 (88)

Nutritional regulation of oligodendrocyte differentiation regulates perineuronal net remodeling in the median eminence

open access: yesCell Reports, 2021
Summary: The mediobasal hypothalamus (MBH; arcuate nucleus of the hypothalamus [ARH] and median eminence [ME]) is a key nutrient sensing site for the production of the complex homeostatic feedback responses required for the maintenance of energy balance.
Sophie Buller   +2 more
exaly   +3 more sources

Lesion-induced changes of brevican expression in the perineuronal net of the superior vestibular nucleus

open access: yesNeural Regeneration Research, 2022
Damage to the vestibular sense organs evokes static and dynamic deficits in the eye movements, posture and vegetative functions. After a shorter or longer period of time, the vestibular function is partially or completely restored via a series of ...
Agnes Magyar   +5 more
doaj   +1 more source

Perineuronal Net Receptor PTPσ Regulates Retention of Memories

open access: yesFrontiers in Synaptic Neuroscience, 2021
Perineuronal nets (PNNs) have an important physiological role in the retention of learning by restricting cognitive flexibility. Their deposition peaks after developmental periods of intensive learning, usually in late childhood, and they help in long ...
Angelina Lesnikova   +5 more
doaj   +1 more source

Neonatal Zika virus infection causes transient perineuronal net degradation

open access: yesFrontiers in Cellular Neuroscience, 2023
Perineuronal nets (PNNs) form a specialized extracellular matrix that predominantly surrounds parvalbumin (PV)-expressing GABAergic inhibitory interneurons and help regulate neuronal activity. Their formation early in the postnatal period is regulated by
Kaliroi Engel   +6 more
doaj   +1 more source

Beta3Gn-T7 Is a Keratan Sulfate β1,3 N-Acetylglucosaminyltransferase in the Adult Brain

open access: yesFrontiers in Neuroanatomy, 2022
Keratan sulfate (KS) glycan is covalently attached to a core protein of proteoglycans. KS is abundant in neuropils and presents densely in close proximity to the perineuronal region of the perineuronal net-positive neurons in the adult brain under ...
Yoshiko Takeda-Uchimura   +6 more
doaj   +1 more source

Parvalbumin interneuron-derived tissue-type plasminogen activator shapes perineuronal net structure

open access: yesBMC Biology, 2022
Background Perineuronal nets (PNNs) are specialized extracellular matrix structures mainly found around fast-spiking parvalbumin (FS-PV) interneurons. In the adult, their degradation alters FS-PV-driven functions, such as brain plasticity and memory, and
Matthieu Lépine   +15 more
doaj   +1 more source

Parvalbumin interneuron alterations in stress-related mood disorders: A systematic review

open access: yesNeurobiology of Stress, 2021
Stress-related psychiatric disorders including depression involve complex cellular and molecular changes in the brain, and GABAergic signaling dysfunction is increasingly implicated in the etiology of mood disorders.
George Perlman   +2 more
doaj   +1 more source

Experience-dependent plasticity and modulation of growth regulatory molecules at central synapses. [PDF]

open access: yesPLoS ONE, 2011
Structural remodeling or repair of neural circuits depends on the balance between intrinsic neuronal properties and regulatory cues present in the surrounding microenvironment.
Simona Foscarin   +7 more
doaj   +1 more source

The Perineuronal ‘Safety’ Net? Perineuronal Net Abnormalities in Neurological Disorders

open access: yesFrontiers in Molecular Neuroscience, 2018
Perineuronal nets (PNN) are extracellular matrix (ECM) assemblies that preferentially ensheath parvalbumin (PV) expressing interneurons. Converging evidence indicates that PV cells and PNN are impaired in a variety of neurological disorders.
Teresa H. Wen   +6 more
doaj   +1 more source

Update on Perineuronal Net Staining With Wisteria floribunda Agglutinin (WFA)

open access: yesFrontiers in Integrative Neuroscience, 2022
As chemically specialized forms of the extracellular matrix in the central nervous system, polyanionic perineuronal nets (PNs) contain diverse constituents, including chondroitin sulfate proteoglycans (CSPGs), hyaluronic acid, and tenascins.
Wolfgang Härtig   +5 more
doaj   +1 more source

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