Results 31 to 40 of about 43,942 (341)

The competitive NMDA antagonist CPP protects substantia nigra neurons from MPTP-induced degeneration in primates [PDF]

open access: yes, 1993
Degeneration of nigrostriatal dopaminergic neurons is the primary histopathological feature of Parkinson's disease. The neurotoxin MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) induces a neurological syndrome in man and non-human primates very ...
Burg, M.   +7 more
core   +1 more source

Unique Features of Network Bursts Emerge From the Complex Interplay of Excitatory and Inhibitory Receptors in Rat Neocortical Networks

open access: yesFrontiers in Cellular Neuroscience, 2019
Spontaneous network activity plays a fundamental role in the formation of functional networks during early development. The landmark of this activity is the recurrent emergence of intensive time-limited network bursts (NBs) rapidly spreading across the ...
Heidi Teppola   +2 more
doaj   +1 more source

Amino acids in the vitreous and intravitreal fluid in rhegmatogenous retinal detachment patients with different proliferative vitreoretinopathy grades

open access: yesJournal of Ophthalmology, 2015
Background:Proliferative vitreoretinopathy (PVR) is known to worsen the treatment prognosis of rhegmatogenous retinal detachment (RRD) and to result in irreversible loss of vision due to apoptotic or necrotic process in retinal neurons. Some studies have
G.V. Levitskaya
doaj   +1 more source

Opioid Tolerance and Physical Dependence: Role of Spinal Neuropeptides, Excitatory Amino Acids and Their Messengers

open access: yesPain Research and Management, 2000
Chronic opioid treatment results in the development of tolerance and physical dependence. The mechanisms underlying opioid tolerance and/or physical dependence are unclear.
Khem Jhamandas   +3 more
doaj   +1 more source

AMPA GluA1-flip targeted oligonucleotide therapy reduces neonatal seizures and hyperexcitability.

open access: yesPLoS ONE, 2017
Glutamate-activated α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPA-Rs) mediate the majority of excitatory neurotransmission in brain and thus are major drug targets for diseases associated with hyperexcitability or neurotoxicity ...
Nicole M Lykens   +4 more
doaj   +1 more source

Nature's Starships. I. Observed Abundances and Relative Frequencies of Amino Acids in Meteorites [PDF]

open access: yes, 2014
The class of meteorites called carbonaceous chondrites are examples of material from the solar system which have been relatively unchanged from the time of their initial formation. These meteorites have been classified according to the temperatures and physical conditions of their parent planetesimals.
arxiv   +1 more source

Glutamate-induced depression of EPSP–spike coupling in rat hippocampal CA1 neurons and modulation by adenosine receptors [PDF]

open access: yes, 2010
The presence of high concentrations of glutamate in the extracellular fluid following brain trauma or ischaemia may contribute substantially to subsequent impairments of neuronal function.
Alici   +77 more
core   +1 more source

A search for mid-IR bands of amino acids in the Perseus Molecular Cloud [PDF]

open access: yesarXiv, 2021
Amino acids are building-blocks of proteins, basic constituents of all organisms and essential to life on Earth. They are present in carbonaceous chondrite meteorites and comets, but their origin is still unknown. Formation of amino acids in the interstellar medium is posible via specific gas-phase reactions in dark clouds, however sensitive ...
arxiv  

Fathoming the kynurenine pathway in migraine: why understanding the enzymatic cascades is still critically important [PDF]

open access: yes, 2015
Kynurenine pathway, the quantitatively main branch of tryptophan metabolism, has been long been considered a source of nicotinamide adenine dinucleotide, although several of its products, the so-called kynurenines, are endowed with the capacity to ...
CURTO, MARTINA   +4 more
core   +1 more source

Blockade of Glutamate Receptors within the Prelimbic Cortex Attenuate Concentration of Excitatory Amino Acids in the Morphine Self-administration in Rats

open access: yesAdvanced Biomedical Research, 2018
Background: The attitude of research on addiction has been done on the key role of glutamate. As a regard, the prelimbic cortex (PrL) has an important role in addiction, learning, and memory.
Fateme Aboutalebi   +2 more
doaj   +1 more source

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