Physiology of astroglia

A Verkhratsky, M Nedergaard - Physiological reviews, 2018 - journals.physiology.org
Astrocytes are neural cells of ectodermal, neuroepithelial origin that provide for homeostasis
and defense of the central nervous system (CNS). Astrocytes are highly heterogeneous in …

Diversity of astrocyte functions and phenotypes in neural circuits

BS Khakh, MV Sofroniew - Nature neuroscience, 2015 - nature.com
Astrocytes tile the entire CNS. They are vital for neural circuit function, but have traditionally
been viewed as simple, homogenous cells that serve the same essential supportive roles …

Astrocyte Kir4. 1 ion channel deficits contribute to neuronal dysfunction in Huntington's disease model mice

X Tong, Y Ao, GC Faas, SE Nwaobi, J Xu… - Nature …, 2014 - nature.com
Huntington's disease (HD) is characterized by striatal medium spiny neuron (MSN)
dysfunction, but the underlying mechanisms remain unclear. We explored roles for …

Inwardly rectifying potassium channels: their structure, function, and physiological roles

H Hibino, A Inanobe, K Furutani… - Physiological …, 2010 - journals.physiology.org
Inwardly rectifying K+ (Kir) channels allow K+ to move more easily into rather than out of the
cell. They have diverse physiological functions depending on their type and their location …

Fluid and ion transfer across the blood–brain and blood–cerebrospinal fluid barriers; a comparative account of mechanisms and roles

SB Hladky, MA Barrand - Fluids and Barriers of the CNS, 2016 - Springer
The two major interfaces separating brain and blood have different primary roles. The
choroid plexuses secrete cerebrospinal fluid into the ventricles, accounting for most net fluid …

Astrocyte heterogeneity: an underappreciated topic in neurobiology

Y Zhang, BA Barres - Current opinion in neurobiology, 2010 - Elsevier
Astrocytes, one of the most numerous types of cells in the central nervous system, are crucial
for potassium homeostasis, neurotransmitter uptake, synapse formation, regulation of blood …

Potassium buffering in the central nervous system

P Kofuji, EA Newman - Neuroscience, 2004 - Elsevier
Rapid changes in extracellular K+ concentration ([K+] o) in the mammalian CNS are
counteracted by simple passive diffusion as well as by cellular mechanisms of K+ clearance …

Conditional knock-out of Kir4. 1 leads to glial membrane depolarization, inhibition of potassium and glutamate uptake, and enhanced short-term synaptic potentiation

B Djukic, KB Casper, BD Philpot, LS Chin… - Journal of …, 2007 - Soc Neuroscience
During neuronal activity, extracellular potassium concentration ([K+] out) becomes elevated
and, if uncorrected, causes neuronal depolarization, hyperexcitability, and seizures …

The astrocyte odyssey

DD Wang, A Bordey - Progress in neurobiology, 2008 - Elsevier
Neurons have long held the spotlight as the central players of the nervous system, but we
must remember that we have equal numbers of astrocytes and neurons in the brain. Are …

Ion channels and electrophysiological properties of astrocytes: implications for emergent stimulation technologies

J McNeill, C Rudyk, ME Hildebrand… - Frontiers in Cellular …, 2021 - frontiersin.org
Astrocytes comprise a heterogeneous cell population characterized by distinct
morphologies, protein expression and function. Unlike neurons, astrocytes do not generate …