Abstract：
:Evidence was accumulated indicating that cyclic nucleotides are involved in regulation of growth, differentiation and function of lymphoid cells. It was previously shown that the N-fragment (1-4) of thymosin beta 4 (Ac-Ser-Asp-Lys-Pro-OH) inhibits in vivo the entry of cell populations into S-phase. In the course of the study of the interrelationship between the immune and neuroendocrine systems we have found that the tetrapeptide caused incomplete competitive inhibition of hypothalamic calmodulin (CaM)-dependent phosphodiesterase (PDE) stimulated by CaM. In the presence of the peptide, the 20-fold increase of the constant for PDE activation by CaM was accompanied by an insignificant rise in the maximum rate of cAMP hydrolysis. The value of the inhibition constant (Ki) amounted to 600 nM. In the absence of CaM, the peptide at saturating concentrations reduced the basal activity of PDE nearly 2- to 3-fold. The effect of the peptide on PDE was noncompetitive with respect to cAMP. The results support our suggestion that the tetrapeptide realizes its effects in the immuno-neuroendocrine system by the mechanism of cyclic nucleotide metabolism.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Voelter W,Kapuzniotu A,Mihelic M,Gurvits B,Abrahamian G,Galoyan Adoi
10.1007/BF00995153subject
Has Abstractpub_date
1995-01-01 00:00:00pages
55-9issue
1eissn
0364-3190issn
1573-6903journal_volume
20pub_type
杂志文章abstract：:The potassium-stimulated release of acetylcholine, norepinephrine, serotonin, glutamate, and 4-aminobutyrate from superfused rat cortical slices was studied during hypoxia. A reduction in oxygen tensions from 603 +/- 6 to 22 +/- 2 mm Hg selectively altered the calcium-dependent efflux of these neurotransmitters, but d...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964800
更新日期：1984-08-01 00:00:00
abstract：:It is an honour to have this opportunity write an article in recognition of the immense contributions of Bruce Ransom to the field of glial research. For me (BAM) personally there are many highlights both as a colleague and a friend that come to mind when I reflect on the many years that I have known Bruce. My own ent...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-017-2315-8
更新日期：2017-09-01 00:00:00
abstract：:Quantitative measurements were made of choline acetyltransferase (CAT) activity, acetylcholinesterase (AChE) activity and cholinergic muscarinic receptor binding ([3H]QNB) in eight areas of a cross-section of the rat medulla oblongata. A fourth cholinergic parameter, high-affinity choline uptake, was measured in three...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964389
更新日期：1981-05-01 00:00:00
abstract：:The primary objective of this investigation was to assess the neuroprotective efficacy of spice active principles namely Eugenol (Eug) and isoeugenol (IE) in an acrylamide (ACR) neuropathy model in rats. In the present study, ACR administration (50 mg/kg bw, i.p. 3 times/week) for 5 weeks to growing rats caused typica...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-012-0924-9
更新日期：2013-02-01 00:00:00
abstract：:The long-acting opiate antagonist naltrexone hydrochloride was administered by intraperitoneal injection, in a dose response protocol, to adult rats. The drug was used to observe effects of opiate receptor blockade on cells of the pituitary gland and adjacent hypothalamus. At higher drug doses (5 mg/kg or 10 mg/kg), n...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964168
更新日期：1984-02-01 00:00:00
abstract：:Anesthetics such as propofol can provide neuroprotective effects against cerebral ischemia. However, the underlying mechanism of this beneficial effect is not clear. Therefore, we subjected male Sprague-Dawley rats to 2 h of middle cerebral artery occlusion and investigated how post-ischemic administration of propofol...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-012-0945-4
更新日期：2013-03-01 00:00:00
abstract：:Presenilins (PSs) are catalytic components of the γ-secretase complex that produces Aβ peptides. Substrates of γ-secretase are membrane-bound protein fragments deriving from the cleavage of extracellular sequence of cell surface proteins. APP-derived γ-secretase substrates are cleaved at gamma (γ) sites to produce Aβ ...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-013-1003-6
更新日期：2014-01-01 00:00:00
abstract：:Chicken neurons in culture display measurable activities of mono- and diacylglycerol lipases. Treatment of chicken neuronal cultures with gangliosides (10(-8)M to 10(-5)M) resulted in a time and dose dependent increase in monoacylglycerol lipase activity. The diacylglycerol lipase showed significant increase in specif...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00966702
更新日期：1991-11-01 00:00:00
abstract：:Mice infected with the Venezuelan equine encephalomyelitis virus showed a significant decrease in the GABA content of cerebral hemispheres. Activity of the enzyme which synthetizes GABA, glutamate decarboxylase, is also reduced in whole cerebral hemispheres, neostriatum, and frontal cortex of infected animals, as comp...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964333
更新日期：1980-02-01 00:00:00
abstract：:Histidinemia is an inherited metabolic disorder biochemically characterized by high concentrations of histidine in biological fluids. Usually affected patients are asymptomatic although some individuals have mental retardation and speech disorders. Considering the high prevalence of histidinemia and the scarce informa...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-012-0703-7
更新日期：2012-05-01 00:00:00
abstract：:We investigated the effects of H(2)O(2)-induced oxidative stress on the delayed-rectifier current (IK(DR)), neuronal physiological and morphological properties. Measurements were obtained from hippocampal CA1 neurons in control solution and from the same neurons after exposure to oxidative stress (short- and long-term...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-007-9287-z
更新日期：2007-07-01 00:00:00
abstract：:The features of neuronal damage induced by the mitochondrial toxin NaN(3) were investigated in rat primary cortical neuron cultures. Cell viability (MTT colorimetric determination) and transmembrane mitochondrial potential (J-C1 fluorescence) were concentration-dependently reduced 24 h after NaN(3); neither nuclear fr...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-008-9852-0
更新日期：2009-05-01 00:00:00
abstract：:Traumatic brain injury (TBI) initiates a series of neurochemical and signaling changes that could eventually lead to neuronal apoptosis. Recent studies indicated that mature neurons cell cycle re-enter played a crucial role in neuronal apoptosis. In this study, we identified that the chaperonin containing TCP-1, subun...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-015-1683-1
更新日期：2015-09-01 00:00:00
abstract：:Synaptosomes isolated from mouse brain were incubated with [14C]glutamate and [3H]gamma-amino-butyric acid ([3H]GABA), and then [14C]GABA (newly synthesized GABA) and [3H]GABA (newly captured GABA) in the synaptosomes were analysed. (1) the [3H]GABA was rapidly degraded in the synaptosomes, (2) when the synaptosomes w...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00968675
更新日期：1990-03-01 00:00:00
abstract：:Amyotrophic lateral sclerosis (ALS) is an adult-onset, irreversible neurodegenerative disease that leads to progressive paralysis and inevitable death 3-5 years after diagnosis. The mechanisms underlying this process remain unknown, but new evidence indicates that accumulating levels of D-serine result from the downre...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-2131-6
更新日期：2017-04-01 00:00:00
abstract：:Endoplasmic reticulum (ER) and mitochondria are intracellular organelles and their interactions are directly involved in different processes such as Ca(2+) signaling in cell survival and death mechanisms. Bcl-2 is an anti-apoptotic protein intrinsically related to ER and mitochondria, modulating Ca(2+) content in thes...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-011-0600-5
更新日期：2012-02-01 00:00:00
abstract：:A study was undertaken in rats to evaluate the effects of short-term oral ethanol administration on the levels of fatty acid ethyl esters (FAEE) in brain and peripheral organs in the presence and absence of pretreatment with L-carnitine. Administration of ethanol to rats for seven days resulted in fatty acid ethyl est...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1020984114824
更新日期：1999-01-01 00:00:00
abstract：:Remyelination promoting human IgMs effectively increase the number of myelinated axons in animal models of multiple sclerosis. Hence, they ultimately stimulate myelin production by oligodendrocytes (OLs); however, their exact mechanism of action remains to be elucidated, and in particular, it remains unclear whether t...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-018-2701-x
更新日期：2019-06-01 00:00:00
abstract：:Seizures are accompanied by an exacerbated activation of cerebral ion channels. 4-aminopyridine (4-AP) is a pro-convulsive agent which mechanism of action involves activation of Na(+) and Ca(2+) channels, and several antiepileptic drugs control seizures by reducing these channels permeability. The antidepressant, sert...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-1840-1
更新日期：2016-06-01 00:00:00
abstract：:N-Methyl-D-aspartate (NMDA) and L-glutamate activate membrane receptors that produce substantial permeation of Na+, K+ and Ca2+ through the neuronal membrane. These ionic fluxes are intimately linked to processes that regulate neuronal survival, growth and differentiation. Intracellular free Ca2+ concentrations are th...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/BF00966862
更新日期：1992-01-01 00:00:00
abstract：:Metabolic turnover of axonally transported glycoproteins has been examined in membranous and soluble subfractions of goldfish optic tectum following intraocular injection of [3H]fucose. Radioactivity in total transported glycoproteins reached a maximum in the tectum after 24-30 hr, then declined with a half-life of ap...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964224
更新日期：1980-04-01 00:00:00
abstract：:Prevention and amelioration of Mibyou (sub-healthy condition) is the critical target for disease prevention including age-related diseases and cancer although the Mibyou condition is not yet pathologically defined. Since the oxidative stress is an underlying basic etiology associated with many diseases and aging, the ...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-008-9872-9
更新日期：2009-04-01 00:00:00
abstract：:Using a model of middle cerebral artery occlusion (MCAO), we have previously demonstrated that treadmill exercise promotes angiogenesis in the ischemic penumbra through caveolin-1/VEGF signaling pathways. However, the function of caveolin-1/VEGF signaling in neurogenesis after MCAO has not been determined. In this stu...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-2081-z
更新日期：2017-02-01 00:00:00
abstract：:Vascular endothelial growth factor (VEGF) is a promising biological marker and prognostic indicator in many neurological diseases. Although VEGF concentrations in plasma and cerebrospinal fluid (CSF) are increasingly reported, CSF-VEGF stability pre- and during-assay procedures is seldom evaluated. In the current stud...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-011-0517-z
更新日期：2011-11-01 00:00:00
abstract：:The maximal rate of some cerebral enzymatic activities related to energy transduction (hexokinase; phosphofructokinase; lactate dehydrogenase; citrate synthase; malate dehydrogenase; total NADH-cytochrome c reductase; cytochrome oxidase), amino acid metabolism (glutamate decarboxylase; glutamate dehydrogenase) and cho...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00963926
更新日期：1983-02-01 00:00:00
abstract：:Adult neural stem cells can be isolated from various regions of the rat brain and seem to have multilineage differentiation potential. In this study, we investigated the hypothesis that global protein expression of adult neural stem cells isolated from rat hippocampus is changed during in vitro differentiation. After ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/b:nere.0000023600.25994.11
更新日期：2004-06-01 00:00:00
abstract：:The neurotrophins brain derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) are both expressed in developing cerebellum in addition to their tyrosine kinase receptors. TrkB and TrkC. In contrast to BDNF.NT-3 has only a negligible or a transient survival activity on cultured cerebellar granule neurons. The gra...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF02532309
更新日期：1996-07-01 00:00:00
abstract：:2',3'-cyclic nucleotide 3'-phosphohydrolase (CNP) was phosphorylated in vivo, in brain slices and in a cell free system. Phosphoamino acid analysis of immunoprecipitated CNP labeled in vivo and in brain slices revealed phosphorylation of phosphoserine (94%) and phosphothreonine (5%) residues. Phosphorylation of CNP in...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00967712
更新日期：1994-06-01 00:00:00
abstract：:Zinc oxide nanoparticles (ZnO NPs) have diverse utility these days ranging from being part of nanosensors to be ingredient of cosmetics. Present study was designed to report the effect of variable doses of ZnO NPs on selected aspects of male albino mice behavior. Nano particles were synthesized by sol-gel auto-combust...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-2090-y
更新日期：2017-02-01 00:00:00
abstract：:We have measured the postnatal development and GABA modulation of benzodiazepine receptors in neuronal membranes from vitamin B-6 deficient and normal rats. In rats fed vitamin B-6 adequate and deficient diets there were age-dependent changes in [3H]flunitrazepam binding site affinity and in the number of binding site...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00975043
更新日期：1993-12-01 00:00:00
