Abstract：
:Senescence of the central nervous system is characterized by a progressive loss of neurons that can result in physiological and behavioral impairments. Reduction in the levels of central neurotrophic factors or of neurotrophin receptors may be one of the causes of the onset of these degenerative events. Thus, a proper therapeutic approach would be to increase support to degenerating neurons with trophic factors or to stimulate endogenous neurotrophic activity. Here we report that acetyl-L-carnitine arginine amide (ST-857) is able to stimulate neurite outgrowth in rat pheochromocytoma PC12 cells in a manner similar to that elicited by nerve growth factor (NGF). Neurite induction by ST-857 requires de novo mRNA synthesis and is independent of the action of several common trophic factors. The integrity of the molecular structure of ST-857 is essential for its activity, as the single moieties of the molecule have no effect on PC12 cells, whether they are tested separately or together. Also, minor chemical modifications of ST-857, such as the presence of the arginine moiety at a position other than the amino one, completely abolish its neuritogenic effect. Lastly, the presence of ST-857 in the culture medium competes with the high affinity NGF binding in a dose dependent fashion. These results, although preliminary, are suggestive of a possible role for ST-857 in the development of therapeutic strategies to counteract degenerative diseases of the CNS.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Taglialatela G,Navarra D,Olivi A,Ramacci MT,Werrbach-Perez K,Perez-Polo JR,Angelucci Ldoi
10.1007/BF00995145subject
Has Abstractpub_date
1995-01-01 00:00:00pages
1-9issue
1eissn
0364-3190issn
1573-6903journal_volume
20pub_type
杂志文章abstract：:Isorhynchophylline (IRN), an oxindole alkaloid, has been identified as the main active ingredient responsible for the biological activities of Uncaria rhynchophylla (Miq) Miq ex Havil. (Rubiaceae). Previous studies in our laboratory have revealed that IRN possesses potent neuroprotective effects in different models of...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-2124-5
更新日期：2017-02-01 00:00:00
abstract：:Ingestion of ammonium induces hyperammonemia which increases tubulin content in cerebrum but not in cerebellum. We have dissected 11 discrete areas of cerebrum and quantified the tubulin content in control and hyperammonemic rats. An heterogeneity in the induction of tubulin is shown. The areas more affected are ventr...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965516
更新日期：1989-12-01 00:00:00
abstract：:We measured the activity of several acid hydrolases in oligodendrocyte and mixed glial (predominantly astrocytic) cell cultures prepared from neonatal rat cerebra. When compared with the mixed glial cultures, the cultured oligodendrocytes exhibited higher levels for all the hydrolases when activities were normalized t...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00970764
更新日期：1988-10-01 00:00:00
abstract：:Some crustacean axons remain functional for months after injury. This unusual property may require stress proteins synthesized by those neurons or provided to them by glial cells. To begin to explore this hypothesis, we examined the conditions that stimulated stress protein synthesis by crayfish CNS tissue in vitro. I...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00974871
更新日期：1991-05-01 00:00:00
abstract：:Aging is accompanied by the loss of memory and cognitive functions. The extracellular signal-regulated kinase (ERK) pathway has been shown to play an essential role in synaptic plasticity and memory. Although a reduction in basal ERK1/2 activity has been found in the cerebral cortex in aged rats, changes in ERK1/2 mRN...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1024948532633
更新日期：2003-09-01 00:00:00
abstract：:The MAO inhibitor phenelzine (PLZ) at a dose of 25 mg/kg does not affect the behavior of rats. In contrast, the equivalent dose of a deuterated analog (alpha, alpha, beta, beta-tetradeutero-PLZ, d4PLZ) elicits a biphasic behavioral syndrome in rats. In an attempt to correlate changes in cerebral monoamines with behavi...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00973322
更新日期：1988-02-01 00:00:00
abstract：:The effect of ageing and the relationships between the catalytic properties of enzymes linked to Krebs' cycle, electron transfer chain, glutamate and aminoacid metabolism of cerebral cortex, a functional area very sensitive to both age and ischemia, were studied on mitochondria of adult and aged rats, after complete i...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-009-0004-y
更新日期：2009-12-01 00:00:00
abstract：:Evidence that brain glutamatergic activity is pathologically elevated in bipolar disorder suggests that mood stabilizers are therapeutic in the disease in part by downregulating glutamatergic activity. Such activity can involve the second messenger, arachidonic acid (AA, 20:4n - 6). We tested this hypothesis with rega...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-008-9700-2
更新日期：2008-11-01 00:00:00
abstract：:The Editors have retracted this article [1] following an investigation conducted by the journal. After publication concerns were raised regarding interpretation of the data presented in Fig. 4. The Editors requested additional data and clarification to confirm interpretation of data results. After further review, the ...
journal_title：Neurochemical research
pub_type： 杂志文章,撤回出版物
doi：10.1007/s11064-020-03077-0
更新日期：2020-09-01 00:00:00
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journal_title：Neurochemical research
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doi：10.1023/a:1020932121378
更新日期：1998-12-01 00:00:00
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journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00969627
更新日期：1989-02-01 00:00:00
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journal_title：Neurochemical research
pub_type： 杂志文章,评审
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更新日期：2020-11-01 00:00:00
abstract：:Ferulago angulata (Apiaceae) is a shrub indigenous to western Iran, Turkey and Iraq. In traditional medicine, F. angulata is recommended for treating digestive pains, hemorrhoids, snake bite, ulcers and as sedative. In the present study, the effects of inhaled F. angulata essential oil (1 and 3%, daily, for 21 days) o...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-015-1662-6
更新日期：2015-09-01 00:00:00
abstract：:cDNA microarray analysis of 1-methyl-4-phenyl-pyridinium (MPP+) toxicity (1 mM, 72 h) in undifferentiated SH-SY5Y cells identified 48 genes that displayed a signal intensity greater than the mean of all differentially expressed genes and a two-fold or greater difference in normalized expression. RT-PCR analysis of a s...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1026179926780
更新日期：2003-12-01 00:00:00
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journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF02532395
更新日期：1996-10-01 00:00:00
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journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-007-9474-y
更新日期：2008-03-01 00:00:00
abstract：:One of the main pathological symptoms of early diabetic retinal neuropathy is retina neuronal apoptosis. In the present work we investigated the effects of indoleamine hormone melatonin, a powerful free radical scavenger, on streptozotocin-induced retina neuronal cell apoptosis in high blood glucose rat. After melaton...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-012-0966-z
更新日期：2013-03-01 00:00:00
abstract：:In this study, we investigated if subunit displacement and/or alterations in proteasome biosynthesis are responsible for the changes in the levels of constitutive proteasomes (c-20S), immunoproteasomes (i-20S) and the activators PA28 and PA700 in neurons and astrocytes cultured with a cytokine mixture (IFN-γ/TNF-α/IL-...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-020-02958-8
更新日期：2020-04-01 00:00:00
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journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-020-02975-7
更新日期：2020-04-01 00:00:00
abstract：:The participation of voltage-sensitive Na+ channels (VSSC) on the changes on internal (i) Na+, K+, Ca2+, and on DA, Glu, and GABA release caused by different concentrations of 4-AP was investigated in striatum synaptosomes. TTX, which abolished the increase in Na(i) (as determined with SBFI), induced by 0.1 mM 4-AP on...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/b:nere.0000013737.17288.ce
更新日期：2004-02-01 00:00:00
abstract：:There is growing evidence that ketone bodies (KB)-derived from fatty acid oxidation and produced during fasting or consumption of high-fat diets-can exert broad neuroprotective effects. With respect to epilepsy, KB (such as β-hydroxybutyrate or BHB, acetoacetate and acetone) have been shown to block acutely induced an...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
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更新日期：2017-07-01 00:00:00
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journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-019-02778-5
更新日期：2020-03-01 00:00:00
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journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00971637
更新日期：1988-12-01 00:00:00
abstract：:Serotonin uptake and metabolism was studied in ependymal primary cultures. Serotonin uptake was facilitated by two different systems, one of which was the neuronal serotonin transporter SERT, exhibiting a Vmax value of 3.8+/-0.1 pmol x min(-1) x (mg protein)(-1) and an apparent Michaelis-Menten constant of 0.41+/-0.03...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/b:nere.0000035810.08543.97
更新日期：2004-09-01 00:00:00
abstract：:Treatment of neural membranes from rat cerebral cortex with phospholipase C (phosphatidylcholine cholinephosphohydrolase) inhibited the binding of radiolabelled antagonists to muscarinic acetylcholine receptors. This inhibition was incomplete, was not competitive, and did not appear to be related to the production of ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964517
更新日期：1984-05-01 00:00:00
abstract：:The effects of phenylalanine (PHE) and its deaminated metabolites phenylpyruvate (PHP), phenyllactate (PHL) and phenylacetate (PHA) on sodium and potassium activated adenosinetriphosphatase (Na+,K+-ATPase) in synaptosomes from rat brain were investigated. At very low concentrations (5-10 microM). PHE, PHL and PHA inhi...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965524
更新日期：1982-06-01 00:00:00
abstract：:The effects of chronic pentobarbital (PB) treatment on the binding characteristics of [3H]flunitrazepam (FLU) in rat brain were examined. Saline or sodium PB (500 micrograms/10 microliters/hr) was infused into the lateral cerebral ventricles of rats for 6 days using osmotic pumps. Immediately before withdrawal, there ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00966726
更新日期：1994-01-01 00:00:00
abstract：:Malformations of cortical development (MCD) are critical brain development disorders associated with varied abnormalities in both anatomic structures and neural functioning. It is also a very common etiology to the epilepsy, in which the alteration on excitability of cortical neurons is hypothesized as one of importan...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-1936-7
更新日期：2016-09-01 00:00:00
abstract：:The regional distribution of 2-amino-4-phosphonobutyrate (APB)/chloride-insensitive L-[3H]glutamate binding sites in the rat central nervous system was compared with that of APB/chloride-sensitive and with sodium-dependent binding sites. The distribution of APB-sensitive and APB-insensitive sites was not correlated, b...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00963986
更新日期：1984-03-01 00:00:00
abstract：:The concentration of vitamin E (alpha-tocopherol) was measured in samples of cortex from patients with Alzheimer's disease (AD), fetuses with Down's syndrome (DS), and also in a group of centenarians. The mean tocopherol concentrations in the two patient groups did not differ significantly from appropriate controls. W...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965511
更新日期：1989-12-01 00:00:00
