Lamination is a central feature of structural organization and segregation within the central nervous system. Afferent fibers typically restrict their synapses to only one or a few specific laminae in the target region. Astroglial cells act as boundary markers for functional segregation of inputs in somatosensory cortex and the olfactory bulb and might also help to segregate particular connecti...

Astrocytes, the most populous glial cell type in the brain, are critical for regulating the brain microenvironment. In various neurodegenerative diseases, astrocytes determine the progression and outcome of the neuropathological process. We have recently revealed the direct involvement of mitochondrial function in human pluripotent stem cell (hiPSC)-derived dopaminergic (DA) neuronal differenti...

Purpose: The effect of a highly selective 6-hydroxydopamine (6-OHDA)-induced lesion of the nigrostriatal system on the astroglial and microglial activation was analysed in adult Wistar rats after an unilateral striatal injection of the neurotoxin. Methods: Male rats received an unilateral stereotaxical injection of the 6-OHDA in the left side of the neostriatum and were sacrificed 22 days later...

Astrocytes express dopamine receptors and respond to dopamine stimulation. However, the role of astrocytes in psychiatric disorders and the effects of antipsychotics on astroglial cells have only been investigated recently. S100B is a glial-derived protein, commonly used as a marker of astroglial activation in psychiatric disorders, particularly schizophrenia. We investigated S100B secretion in...

BACKGROUND AND PURPOSE The effects of nicotine on cerebral metabolism and its influence on smoking behavior is poorly understood. An understanding of the chronic effects of nicotine on excitatory and inhibitory metabolic demand, and corresponding neurotransmission may provide clues for designing strategies for the optimal smoking cessation intervention. The objective of the current study was to...

Attention-deficit/hyperactivity disorder (ADHD) is a prevalent psychiatric disorder in children. Although an imbalance of excitatory and inhibitory inputs has been proposed as contributing to this disorder, the mechanisms underlying this highly heterogeneous disease remain largely unknown. Here, we show that N-myc downstream-regulated gene 2 (NDRG2) deficiency is involved in the development of ...

A purified population of astrocytes was prepared from embryonic rat hypothalamus. These cells were transplanted into the cerebral cortex of adult rats with survival time of 5 days and studied by glial fibrillary acidic protein (GFAP) immunohistochemistry and electron microscopy. A progressive gradation from the edges of the implant to the intact host tissue was observed in relation to the vascu...

In response to injuries to the CNS, astrocytes enter a reactive state known as astrogliosis, which is believed to be deleterious in some contexts. Activated astrocytes overexpress intermediate filaments including glial fibrillary acidic protein (GFAP) and vimentin (Vim), resulting in entangled cells that inhibit neurite growth and functional recovery. Reactive astrocytes also secrete inflammato...

Ethanol (ETOH) exposure can result in neuronal damage. Astrocytes are morphologic and functionally related to neurons, and astrocyte-neuron interactions provide strategic sites for the actions of many chemical compounds. The aim of the present work was to study the morphologic alterations of glial cells and neurons on the hippocampus after long-term ETOH exposure using GFAP and S-100 beta prote...

Membrane lipid rafts provide a specialized microenvironment enriched with sphingolipids and phospholipids containing saturated fatty acids and serve as a platform for various intracellular signalling pathways. PtdGlc (phosphatidylglucoside) is a type of glycophospholipid localized in the outer leaflet of the plasma membrane. Owing to PtdGlc's unique fatty acid composition, exclusively composed ...