Results 71 to 80 of about 985,419 (304)

Endoplasmic Reticulum Geometry Dictates Neuronal Bursting via Calcium Store Refill Rates and Exposes Selective Neuronal Vulnerability

open access: yesAdvanced Science, EarlyView.
The ER's continuous tubular network is maintained by ER‐shaping proteins whose mutation or dysregulation contributes to neurodegenerative diseases. Here, we show that ER morphology sets the speed of Ca2+ store replenishment between firing events. Disrupting ER continuity slows intra‐ER Ca2+ redistribution from extracellular refill (SOCE) sites, driving
Valentina Davi   +13 more
wiley   +1 more source

Hippocampal serotonin depletion unmasks differences in the hyperlocomotor effects of phencyclidine and MK-801: quantitative versus qualitative analyses

open access: yesFrontiers in Pharmacology, 2013
Antagonism of N-methyl-D-aspartate (NMDA) receptors by phencyclidine is thought to underlie its ability to induce a schizophrenia-like syndrome in humans, yet evidence indicates it has a broader pharmacological profile.
Wendy K Adams   +3 more
doaj   +1 more source

Universal approximation of multi-copy states and universal quantum lossless data compression

open access: yes, 2008
We have proven that there exists a quantum state approximating any multi-copy state universally when we measure the error by means of the normalized relative entropy. While the qubit case was proven by Krattenthaler and Slater (IEEE Trans.
B. Schumacher   +15 more
core   +1 more source

Relationships between hornblende K-Ar ages, chemical composition and hydrogen isotopes, Connemara, western Ireland: evidence for a massive extinct hydrothermal system [PDF]

open access: yes, 2001
Major element compositional analyses, K-Ar ages, deltaD parts per thousand and delta O-18 parts per thousand values for 30 zoned and unzoned hornblendes from Dalradian amphibolites and metagabbros. mostly in north Connemara are reported.
Fallick, A.E., Jappy, T.G., Leake, B.E.
core   +1 more source

ZSL Orchestrates Synaptonemal Complex Assembly as a Central Region Scaffold to Ensure Synapsis Fidelity and Crossover Control in Polyploid Meiosis

open access: yesAdvanced Science, EarlyView.
A central molecular adaptor, ZSL, is identified that links transverse filaments ZYP1 to central element SCEP1/2 to drive synaptonemal complex assembly in Brassica napus. Loss of ZSL abolishes synaptonemal complex formation, disrupts meiotic chromosome segregation, and markedly increases crossovers, providing mechanistic insight into meiotic fidelity ...
Miaowei Geng   +16 more
wiley   +1 more source

MK-801 treatment affects glycolysis in oligodendrocytes more than in astrocytes and neuronal cells: insights for schizophrenia

open access: yesFrontiers in Cellular Neuroscience, 2015
As a multifactorial disease, the underlying causes of schizophrenia require analysis by multiplex methods such as proteomics to allow identification of whole protein networks.
Paul C Guest   +6 more
doaj   +1 more source

Kondo Effect and Josephson Current through a Quantum Dot between Two Superconductors

open access: yes, 2004
We investigate the supercurrent through a quantum dot for the whole range of couplings using the numerical renormalization group method. We find that the Josephson current switches abruptly from a $\pi$- to a 0-phase as the coupling increases.
Kicheon Kang   +7 more
core   +1 more source

Pre-training in a radial arm maze abolished anxiety and impaired habituation in C57BL6/J mice treated with dizocilpine [PDF]

open access: yes, 2016
Familiarity can imply a reduction of fear and anxiety, which may render learning and memory performance insensitive to NMDA receptor antagonism. Our previous study indicates that MK-801 (dizocilpine), NMDA antagonist, increased anxiety and prevented the ...
Abuhamdah, R.M.   +3 more
core   +1 more source

DNA Nanoarray for Multiplexed RNA Detection With Single‐Molecule Readout

open access: yesAdvanced Science, EarlyView.
A carrier‐based DNA nanoarray integrates programmable nucleic acid hybridization with solid‐state nanopore readout for direct RNA detection at single‐molecule resolution. A ternary encoding system enables 27 carriers with 81 addressable sensing sites, allowing the simultaneous identification of targets spanning a wide size range, from short microRNAs ...
Yunxuan Li   +12 more
wiley   +1 more source

A-582941, cholinergic alpha 7 nicotinic receptor agonist, improved cognitive and negative symptoms of the sub-chronic MK-801 model of schizophrenia in rats

open access: yesPsychiatry and Clinical Psychopharmacology, 2018
OBJECTIVES Nicotinic receptor systems are involved in a wide variety of behavioural functions, including cognitive function, and nicotinic medications, may provide beneficial treatment for cognitive dysfunctions such as schizophrenia.
Gokhan Unal, Feyza Aricioglu
doaj   +1 more source

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