Results 41 to 50 of about 2,231 (191)

Early Destruction of the Extracellular Matrix around Parvalbumin-Immunoreactive Interneurons in Creutzfeldt-Jakob Disease

open access: yesNeurobiology of Disease, 1999
GABA-interneurons immunoreactive (IR) for the calcium-binding protein parvalbumin are lost during the early stages of Creutzfeldt-Jakob disease (CJD) and diminution in their number may partially account for the neurological disturbances manifested in ...
Pavel V. Belichenko   +4 more
doaj   +1 more source

Perineuronal Nets Protect Fast-Spiking Interneurons Against Oxidative Stress

open access: yes, 2023
A hallmark of schizophrenia pathophysiology is the dysfunction of cortical inhibitory GABA neurons expressing parvalbumin, which are essential for coordinating neuronal synchrony during various sensory and cognitive tasks. The high metabolic requirements
Do, Kim Q.   +6 more
core   +1 more source

Oral treatment of 4-methylumbelliferone reduced perineuronal nets and improved recognition memory in mice

open access: yesBrain Research Bulletin, 2022
Hyaluronan (HA) is a core constituent of perineuronal nets (PNNs) that surround subpopulations of neurones. The PNNs control synaptic stabilization in both the developing and adult central nervous system, and disruption of PNNs has shown to reactivate ...
Jana Dubisova   +8 more
doaj   +1 more source

Semaphorins in Adult Nervous System Plasticity and Disease

open access: yesFrontiers in Synaptic Neuroscience, 2021
Semaphorins, originally discovered as guidance cues for developing axons, are involved in many processes that shape the nervous system during development, from neuronal proliferation and migration to neuritogenesis and synapse formation.
Daniela Carulli   +3 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 ...
Matsui, Fumiko   +2 more
openaire   +2 more sources

Perineuronal Net Microscopy: From Brain Pathology to Artificial Intelligence. [PDF]

open access: yesInt J Mol Sci
Perineuronal nets (PNN) are a special highly structured type of extracellular matrix encapsulating synapses on large populations of CNS neurons. PNN undergo structural changes in schizophrenia, epilepsy, Alzheimer’s disease, stroke, post-traumatic ...
Paveliev M   +9 more
europepmc   +2 more sources

Releasing Addiction Memories Trapped in Perineuronal Nets [PDF]

open access: yesTrends in Genetics, 2018
Drug addiction can be conceptualized at a basic level as maladaptive learning and memory. Addictive substances elicit changes in brain circuitry involved in reward, cognition, and emotional state, leading to the formation and persistence of strong drug-associated memories that lead to craving and relapse.
Amy W. Lasek, Hu Chen, Wei-Yang Chen
openaire   +2 more sources

Casting a Wide Net: Role of Perineuronal Nets in Neural Plasticity [PDF]

open access: yesThe Journal of Neuroscience, 2016
Perineuronal nets (PNNs) are unique extracellular matrix structures that wrap around certain neurons in the CNS during development and control plasticity in the adult CNS. They appear to contribute to a wide range of diseases/disorders of the brain, are involved in recovery from spinal cord injury, and are altered during aging, learning and memory, and
Sorg, Barbara A   +6 more
openaire   +6 more sources

Fragmented burst neuron perineuronal net immunostaining.

open access: yes, 2015
Parvalbumin-positive (PAV) putative burst neurons in the rostral interstitial nucleus of the medial longitudinal fasciculus (RIMLF) and in the paramedian pontine reticular formation (PPRF) were present in both the control and patient.
Wolfgang Härtig (232795)   +6 more
core   +1 more source

Spiny and Non-spiny Parvalbumin-Positive Hippocampal Interneurons Show Different Plastic Properties

open access: yesCell Reports, 2019
Summary: Dendritic spines control synaptic transmission and plasticity by augmenting post-synaptic potentials and providing biochemical compartmentalization.
Angelica Foggetti   +4 more
doaj   +1 more source

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