Results 51 to 60 of about 1,848 (164)

Engineered Living Systems With Self‐Organizing Neural Networks: From Anatomy to Behavior and Gene Expression

open access: yesAdvanced Science, EarlyView.
Ectodermal tissue excised from Xenopus embryos self‐organizes into a three‐dimensional mucociliary organoid. Here, we generate a neural variant, termed neurobot, by implanting neural precursor cells. Neurobots develop mature neurons, adopt distinct morphologies, exhibit more complex motility, and respond differentially to neuroactive compounds. Imaging
Haleh Fotowat   +6 more
wiley   +1 more source

Perineuronal nets and schizophrenia: The importance of neuronal coatings [PDF]

open access: yesNeuroscience & Biobehavioral Reviews, 2014
Schizophrenia is a complex brain disorder associated with deficits in synaptic connectivity. The insidious onset of this illness during late adolescence and early adulthood has been reported to be dependent on several key processes of brain development including synaptic refinement, myelination and the physiological maturation of inhibitory neural ...
Byron K Y, Bitanihirwe, Tsung-Ung W, Woo
openaire   +2 more sources

Sensory Experience as a Regulator of Structural Plasticity in the Developing Whisker-to-Barrel System

open access: yesFrontiers in Cellular Neuroscience, 2021
Cellular structures provide the physical foundation for the functionality of the nervous system, and their developmental trajectory can be influenced by the characteristics of the external environment that an organism interacts with.
Chia-Chien Chen   +3 more
doaj   +1 more source

Sono‐Mechanogenetics: Linking Ultrasound Physics With Cellular Mechanobiology

open access: yesAdvanced Science, EarlyView.
Sono‐mechanogenetics links ultrasound physics with cellular mechanotransduction to enable noninvasive control of engineered biological systems. Acoustic forces generate distinct deformation modes that activate intracellular signaling pathways, which can be coupled to synthetic gene circuits to regulate diverse cellular functions, including gene ...
Yunjia Qu   +4 more
wiley   +1 more source

WONOEP XVII appraisal: The role of the extracellular matrix in epilepsy

open access: yesEpilepsia, EarlyView.
Abstract The extracellular matrix (ECM) is composed of proteoglycans and glycoproteins that regulate the external environment surrounding neurons, glia, and the vascular system. The ECM is vital for maintaining the structure and function of the brain and also acts as a reservoir for various signaling molecules and neurotransmitters, modulating synaptic
Eleonora Lugara   +7 more
wiley   +1 more source

Molecular Mechanisms of L1 and NCAM Adhesion Molecules in Synaptic Pruning, Plasticity, and Stabilization

open access: yesFrontiers in Cell and Developmental Biology, 2021
Mammalian brain circuits are wired by dynamic formation and remodeling during development to produce a balance of excitatory and inhibitory synapses. Synaptic regulation is mediated by a complex network of proteins including immunoglobulin (Ig)- class ...
Bryce W. Duncan   +2 more
doaj   +1 more source

Rapid generation of prion disease models using AAV‐delivered PrP variants in knockout mice

open access: yesBrain Pathology, EarlyView.
We developed a rapid AAV‐based system to generate prion disease models in weeks rather than months. Following systemic AAV9P31 delivery of modified PrP to knockout mice, we achieved brain‐wide expression and successful propagation of both classical (RML) and atypical (GSS‐A117V) prion strains.
Maitena San‐Juan‐Ansoleaga   +11 more
wiley   +1 more source

Perineuronal nets in brain physiology and disease

open access: yesSeminars in Cell & Developmental Biology, 2019
Perineuronal nets (PNNs) in the brain are condensed glycosaminoglycan-rich extracellular matrix structures with heterogeneous composition yet specific organization. They typically assemble around a subset of fast-spiking interneurons that are implicated in learning and memory.
Damien Testa   +2 more
openaire   +3 more sources

Dynamics of perineuronal nets over amphibian metamorphosis

open access: yesJournal of Comparative Neurology, 2020
Abstract Extracellular matrix materials known as perineuronal nets (PNNs) have been shown to have remarkable consequences for the maturation of neural circuits and stabilization of behavior. It has been proposed that, due to the possibly long‐lived biochemical nature of their components, PNNs may be an important substrate by which ...
Jacob A. Edwards   +2 more
openaire   +3 more sources

The Chemorepulsive Protein Semaphorin 3A and Perineuronal Net-Mediated Plasticity

open access: yesNeural Plasticity, 2016
During postnatal development, closure of critical periods coincides with the appearance of extracellular matrix structures, called perineuronal nets (PNN), around various neuronal populations throughout the brain.
F. de Winter   +5 more
doaj   +1 more source

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