Abstract：
:Turnover rate of individual molecular species of sphingomyelin of adult rat brain myelin and microsomal membranes was determined after an intracerebral injection of 100 microCi of [C3H3]choline. Myelin and microsomal membrane sphingomyelins were isolated from the rest of the lipids. The individual molecular species of benzoylated sphingomyelin were separated and quantitated by reversed-phase high performance liquid chromatography. All individual major molecular species of microsomal and myelin sphingomyelin had maximum incorporation at 6 and 15 days, respectively, after the injection. The specific radioactivity of all the various molecular species of both myelin and microsomal sphingomyelin declined at a similar rate after reaching a maximum. There was no significant difference in the turnover rate of short chain (16:0, 18:0) and long chain (greater than 22:0) fatty acid containing sphingomyelin. The average apparent turnover rate of myelin and microsomal sphingomyelin molecular species was about 14-16 days for the fast pool and about 45 days for the slow pool. It is concluded that individual molecular species of sphingomyelin of myelin and microsomal membranes turned over at a similar rate. Thus, turnover rate of sphingomyelin in myelin and microsomal membranes is not affected by the fatty acyl composition of the lipid.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
LeBaron FN,Sanyal S,Jungalwala FBdoi
10.1007/BF00964414subject
Has Abstractpub_date
1981-10-01 00:00:00pages
1081-9issue
10eissn
0364-3190issn
1573-6903journal_volume
6pub_type
杂志文章abstract：:The recent publication of the human genome sequence provides an opportunity both to combat diseases that are presently considered as pharmaceutically intractable and also to improve current therapies for many common human diseases. The identification of every human gene by ongoing bioinformatic efforts has the potenti...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1023/a:1022349805831
更新日期：2003-02-01 00:00:00
abstract：:We have previously reported that angiotensin receptor blockade reduces reperfusion hemorrhage in a suture occlusion model of stroke, despite increasing matrix metalloproteinase (MMP-9) activity. We hypothesized that candesartan will also decrease hemorrhage associated with delayed (6 h) tissue plasminogen activator (t...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-013-1185-y
更新日期：2013-12-01 00:00:00
abstract：:During evolution, living organisms develop a specialized apparatus called nociceptors to sense their environment and avoid hazardous situations. Intense stimulation of high threshold C- and Adelta-fibers of nociceptive primary sensory neurons will elicit pain, which is acute and protective under normal conditions. A f...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-008-9711-z
更新日期：2008-10-01 00:00:00
abstract：:Neonatal hypoxia/ischemia (HI) is the most common cause of developmental neurological, cognitive and behavioral deficits in children, with hyperoxia (HHI) treatment being a clinical therapy for newborn resuscitation. Although cerebral edema is a common outcome after HI, the mechanisms leading to excessive fluid accumu...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-010-0308-y
更新日期：2010-12-01 00:00:00
abstract：UNLABELLED:Cirrhosis represents the terminal stage of a number of chronic liver diseases. Consequences include accumulation of toxic metabolic wastes, reduced synthesis of key proteins, increased portal venous pressure, and portosystemic shunting. We conducted a case-control study to assess the serum levels of S100B pr...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-007-9365-2
更新日期：2007-09-01 00:00:00
abstract：:A number of axonal proteins display changes in phosphorylation during goldfish optic nerve regeneration (Larrivee and Grafstein, 1989). (1) To determine whether the phosphorylation of these proteins was closely linked to their synthesis in the retinal ganglion cell body, cycloheximide was injected intraocularly into g...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965906
更新日期：1990-09-01 00:00:00
abstract：:Postnatal developmental patterns of activity for acid and alkaline deoxyribonuclease (DNase) were determined in the cerebellum of the androgenized female rat. Littermates were injected s.c. with either 1.25 mg testosterone propionate (TP) or vehicle 48 hours after birth. The enzymes and DNA content were measured in th...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964659
更新日期：1985-04-01 00:00:00
abstract：:Single exposure of adult male rats to low environmental temperature (LET, 12 +/- 0.5 degrees C) for 2 h significantly increased the hypothalamic and striatal GABA levels without affecting those in other regions of brain. The activity of glutamate decarboxylase (GAD) was elevated in hypothalamus (H) and corpus striatum...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00968559
更新日期：1990-08-01 00:00:00
abstract：:Rabbits were immunized with the myelin-associated glycoprotein (MAG) that had been purified from isolated rat brain myelin by selective extraction with lithium diiodosalicylate (LIS) and phenol followed by preparative SDS gel electrophoresis. Antibodies to MAG were detected qualitatively by immunodiffusion and quantit...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964417
更新日期：1981-10-01 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
abstract：:Cloned fragments of members of the Drosophila and mouse major heat shock (hsp70) gene family were used to demonstrate that homologous sequences are present in the rabbit genome. After a physiologically relevant increase in body temperature of 3 degrees C, transcription of inducible hsp70 genes is detected in both the ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964846
更新日期：1985-09-01 00:00:00
abstract：:BCL-2-associated athanogene-1(BAG-1) is a multifunctional and anti-apoptotic protein that was first identified as a binding partner of BCL-2. But the effects and mechanisms for BAG-1 against hypoxic damage is unclear up to now. Whether BAG-1 could protect the human brain against hypoxic damage through up-regulating 70...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-017-2304-y
更新日期：2017-10-01 00:00:00
abstract：:Effects of methylmercury (MetHg) on the specific [3H]flunitrazepam binding were studied in rat cortical and cerebellar P2-fractions in vitro. MetHg did not affect significantly the specific [3H]flunitrazepam binding in unwashed P2-fraction but increased it marginally (by 16%) at 100 microM in washed P2-fraction, in bo...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF01705532
更新日期：1995-06-01 00:00:00
abstract：:The cellular uptake of the GABA-transaminase inhibitors gamma-vinyl GABA (GVG) and gamma-acetylenic GABA (GAG) was studied in cultured neurons and astrocytes. By the use of the individual enantiomers R- and S-GVG and R- and S-GAG it could be shown that in both cell types only the S-enantiomers could be actively transp...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965769
更新日期：1986-11-01 00:00:00
abstract：:Mitochondrial division inhibitor 1 (Mdivi-1) is the most effective pharmacological inhibitor of mitochondrial fission. Spinal cord injury (SCI) is a common and serious trauma, which lacks efficient treatment. This study aimed to detect the role of Mdivi-1 in neuronal injury and its underlying mechanism after acute SCI...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-015-1604-3
更新日期：2015-07-01 00:00:00
abstract：:Spinal cord injury (SCI) is a type of long-term disability with a high morbidity rate in clinical settings for which there is no effective clinical treatment to date. Usually, lithium is used as a popular mood stabilizer. Recently, growing evidence has shown that lithium has clear neuroprotective effects after SCI, an...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-018-2488-9
更新日期：2018-04-01 00:00:00
abstract：:This article puts forward the hypothesis that the Low Density Lipid Receptor (LDLR) is one of the molecules that is involved in the clearance of amyloid proteins in the brain and that it may play a role in Alzheimer's Disease (AD) via its up-regulation by statins. The hypothesis is built on the following observations:...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-006-9084-0
更新日期：2006-06-01 00:00:00
abstract：:Several epidemiological studies have shown that consumption of large quantities of vegetables especially cruciferous vegetables (Broccoli and Brussels sprouts) can protect against chronic diseases. Sulforaphane, an isothiocynate found in cruciferous vegetables has been demonstrated to have neuroprotective effects in s...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-1965-2
更新日期：2016-10-01 00:00:00
abstract：:Beta-amyloid (Abeta) peptides may cause malfunction and death of neurons in Alzheimer's disease. We investigated the effect of Abeta on key transporters of amino acid neurotransmission in cells cultured from rat cerebral cortex. The cultures were treated with Abeta(25-35) at 3 and 10 microM for 12 and 24 h followed by...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-007-9527-2
更新日期：2008-02-01 00:00:00
abstract：:The incidence of acute and chronic spinal cord injury (SCI) in the United States is more than 10,000 per year, resulting in 720 cases per million persons enduring permanent disability each year. The economic impact of SCI is estimated to be more than 4 billion dollars annually. Preclinical studies, case reports, and s...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-013-0991-6
更新日期：2013-05-01 00:00:00
abstract：:A study of separate and combined actions of cobra venom (CV) and a new hypothalamic proline-rich polypeptide (PRP) isolated from magnocellular cells (NPV and NSO) on intoxication- and trauma-induced neuronal injury (during 3-4 weeks after hemisection with and without PRP treatment) was carried out. The registration of...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1012353005489
更新日期：2001-09-01 00:00:00
abstract：:Cationic lipid formulations consisting of 3beta [N-(N', N'-dimethylaminoethane)-carbamoyl] cholesterol (DC-Chol) and the helper lipid dioleoylphosphatidylethanolamine (DOPE) (1.5: 1 molar ratio) were prepared by solvent evaporation and sized by high pressure extrusion. Liposomes made of 1:1 molar ratio 1 ,2-dioleoyl-3...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1021012727796
更新日期：1999-05-01 00:00:00
abstract：:The concentrations of taurine in a number of brain regions and in other tissues of rhesus monkeys fed a taurine-free human infant formula for 3 months are substantially lower than in similar monkeys fed the same formula supplemented with taurine. Activities of enzymes involved in taurine biosynthesis were not differen...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00972479
更新日期：1988-04-01 00:00:00
abstract：:Brain development is a highly orchestrated complex process. The developing brain utilizes many substrates including glucose, ketone bodies, lactate, fatty acids and amino acids for energy, cell division and the biosynthesis of nucleotides, proteins and lipids. Metabolism is crucial to provide energy for all cellular p...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-015-1600-7
更新日期：2015-12-01 00:00:00
abstract：:The role of repulsive guidance molecule A (RGMa) in cerebral ischemia remains unclear. In the study, we examined the expression of RGMa in ischemic brain tissues following focal cerebral ischemia/reperfusion (IR) in rats. An established middle cerebral artery suture occlusion model was employed. A dipolar electrode wa...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-012-0809-y
更新日期：2012-09-01 00:00:00
abstract：:Rats fed a vitamin E-deficient diet for 7--8 weeks postweaning showed no change in brain weight or the activity in brain of various enzymes involved in neurotransmitter synthesis and metabolism. Body and muscle weights were markedly reduced. Muscle choline acetyltransferase and acetylcholinesterase activities were sig...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00966003
更新日期：1978-12-01 00:00:00
abstract：:The search for neuronotrophic factors addressing CNS neurons requires CNS neuronal cell cultures to quantitate putative effects on neuronal survival. Investigation of neurons dissociated from several embryonic CNS tissues have shown that their short-term survival requires supplementation of the culture medium with eit...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00973276
更新日期：1988-07-01 00:00:00
abstract：:The K-stimulated release of [3H]ACh from rat midbrain slices prelabeled by incubation with [3H]choline was dependent on extracellular Ca. Phenobarbital inhibited the K-stimulated [3H]ACh release and the IC50 was equal to that found for K-stimulated endogenous ACh release. These results support the suggestion that barb...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964710
更新日期：1980-07-01 00:00:00
abstract：:The major breakthrough discovery of enkephalins as endogenous opiates led our attempts to determine their inactivation mechanisms. Because the NH2-terminal tyrosine is absolutely necessary for the neuropeptides to exert analgesic effects, and aminopeptidase activities are extraordinarily high in the brain, a specific ...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-007-9356-3
更新日期：2007-12-01 00:00:00
abstract：:After rapid inactivation of the enzymes responsible for glucose metabolism by microwave irradiation, concentrations of glucose in 20 regions of the mouse brain were estimated with combined gas chromatography-mass spectrometry (GC-MS). The highest concentrations of glucose were found in the periventricular nuclei of th...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00963774
更新日期：1977-12-01 00:00:00
