Abstract:
:Extracts prepared from embryonic, neonatal and adult rat brain were examined for the presence of oligodendroglial mitogens. Brain-derived mitogenic activities were found in all developmental stages with specific activity increasing during neonatal development. Extracts from postnatal day 7 contained the highest specific activity. Upon fractionation by molecular weight, each developmental stage expressed a peak of mitogenic activity corresponding to 67,000 daltons. This fraction was able to induce proliferation in cultures grown in serum, serumless chemically defined medium or serum-free medium alone. Neonatal and adult brain extracts had an additional peak of activity at 14,000 daltons. This latter activity was expressed only under serum-supplemented culture conditions. Mitogenic activity was also found in conditioned media from the clonal glioma cell line C6 and primary astrocytes and in extracts derived from neonatal rat liver. These data indicate that a limited range of brain-derived mitogens for oligodendrocytes exist during development and adulthood.
journal_name
Dev Neuroscijournal_title
Developmental neuroscienceauthors
Saneto RP,de Vellis Jdoi
10.1159/000112301subject
Has Abstractpub_date
1985-01-01 00:00:00pages
340-50issue
5-6eissn
0378-5866issn
1421-9859journal_volume
7pub_type
杂志文章abstract::Although multipotent progenitor cells capable of generating neurons, astrocytes and oligodendrocytes are present within the germinal zones of the brain throughout embryonic, postnatal and adult life, the different neural cell types are generated within discrete temporospatial developmental windows. This might suggest ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000017429
更新日期:2000-01-01 00:00:00
abstract::In order to investigate the possible influence of norepinephrine (NE) on neuronal development, the effects of neonatal NE depletion on postnatally developing cell populations were characterized in (1) the normal mouse cerebellum, and (2) a cerebellar model system with delayed germinal cell development produced by neon...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112695
更新日期:1982-01-01 00:00:00
abstract::The metabolism of [1, 2-13C2] acetate via the tricarboxylic acid (TCA) cycle leads to the formation of a number of key mass isotopomers of glutamate. The distribution of these isotopomers which is a function of pyruvate carboxylase, pyruvate dehydrogenase and pyruvate recycling was used to determine the relative anapl...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111442
更新日期:1996-01-01 00:00:00
abstract::Myelinogenesis in different brain parts of trout was studied comparatively by means of histochemistry and biochemistry. A more detailed approach, including ultrastructural analysis, to characterize this important differentiation process, particularly in the optic tectum, revealed a good correlation between the structu...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112777
更新日期:1981-01-01 00:00:00
abstract::We report on the effects of etiology and age on the linguistic outcomes in a large pediatric hemispherectomy population. Four populations were considered separately: cortical dysplasia (multilobar involvement), Rasmussen's encephalitis, infarction as a primary etiology and, fourth, children who failed to develop langu...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000017396
更新日期:1999-11-01 00:00:00
abstract::Transient early cerebral laminar organization resulting from normal developmental events has been revealed in human beings through histology and imaging studies. DTI studies have postulated that the fractional anisotropy (FA)-based differentiation of different laminar structures reflects both differing cellular densit...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000229500
更新日期:2009-01-01 00:00:00
abstract::In the developing brain the majority of neurons migrate from their birthplace to their final destination. This active movement is essential for the formation of cortical layers and nuclei. The impairment of migration does not affect the viability of neurons but often results in abnormal differentiation. The proper mig...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000109847
更新日期:2008-01-01 00:00:00
abstract::When cells from the cerebellum of late-gestation rats were grown at low density (50-100 cells/mm2) in a three-dimensional culture system, they rapidly expressed morphological and electrophysiological properties of neurons. Growth and differentiation of the population of solitary neurons as a whole was statistically as...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111645
更新日期:1992-01-01 00:00:00
abstract::Neuronal heterotopia is a malformation of cortical development that is closely associated with epilepsy in humans. Despite emerging interest in the structure and function of the heterotopic cortex, little is known about the membrane properties and synaptic connections of these displaced neurons. We used whole-cell pat...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000017386
更新日期:1999-11-01 00:00:00
abstract::The neonatal rat model of unilateral cerebral hypoxia-ischemia (HI) is commonly used to test the efficacy of therapeutic strategies for prevention or treatment of stroke in the immature brain. Traditionally neuroprotection has been defined as reduction in tissue injury; there is growing interest in complementary funct...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000075665
更新日期:2003-11-01 00:00:00
abstract::We studied the developmental changes of soluble and membrane-bound protein kinases (EC 2.7.1.37) in rat brain and found that the elution profiles from a DEAE-cellulose column by NaCl of adenosine-3':5'-monophosphate (cyclic AMP) dependent protein kinase from cytosol were not significantly different in newborn (0.19 M ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112450
更新日期:1979-01-01 00:00:00
abstract::Striatal neurons are highly vulnerable to hypoxia-ischemia (HI) in term newborns. In a piglet model of HI, striatal neurons develop oxidative stress and organelle disruption by 3-6 h of recovery and ischemic cytopathology over 6-24 h of recovery. We tested the hypothesis that early treatment with the antioxidants EUK-...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000327243
更新日期:2011-01-01 00:00:00
abstract::Early developmental processes, such as metabolic programming, can provide cues to an organism, which allow it to make modifications that are predicted to be beneficial for survival. Similarly, social play has a multifaceted role in promoting survival and fitness of animals. Play is a complex behavior that is greatly i...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000444015
更新日期:2016-01-01 00:00:00
abstract::Necrotizing enterocolitis (NEC) increases the risk of brain injury and impaired neurodevelopment. Rapid brain maturation prior to birth may explain why preterm brains are particularly vulnerable to serious infections. Using pigs as models, we hypothesized that preterm birth was associated with altered blood-cerebrospi...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000488979
更新日期:2018-01-01 00:00:00
abstract::Our previous studies of H218, a sphingosine 1-phosphate (S1P) receptor and a member of the G-protein-coupled receptor superfamily, suggest that it may participate in mammalian nervous system development. Thus, brain levels of H218 mRNA are higher during early neurogenesis than postnatally. In addition, embryonic H218 ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000017452
更新日期:2000-01-01 00:00:00
abstract::Prior studies suggest that non-canonical proteolipid protein (PLP) gene expression occurs during development in non-myelinating neurons as well as myelinating oligodendroglia in mammalian brain. To assess this possibility in neostriatum, a region of uncertain PLP gene expression in neurons, morphological and electroph...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000330321
更新日期:2011-01-01 00:00:00
abstract::Neonatal stroke leads to mortality and severe morbidity, but there is no effective treatment currently available. Erythropoietin (EPO) has been shown to promote cytoprotection and neurogenesis and decrease subventricular zone morphologic changes following brain injury. The long-term cellular response to EPO has not be...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000105473
更新日期:2007-01-01 00:00:00
abstract::Disorders primarily affecting the nervous system comprise approximately one third of all established Mendelian genetic diseases in man. Recombinant DNA technology provides new approaches to the diagnosis and elucidation of the molecular pathology of these disorders. For a small but increasing number of disorders the D...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000112346
更新日期:1983-01-01 00:00:00
abstract::The activity of glycerophosphorylcholine phosphodiesterases was determined in the mesencephalon, diencephalon, cerebral hemispheres, cerebellum and olfactory bulb during postnatal development from P5 to P70 of rat brain. These activities are low and gradually increase to near adult levels by the end of the first postn...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111882
更新日期:1989-01-01 00:00:00
abstract::Excitotoxicity plays a key role during insults to the developing brain such as neonatal encephalopathy, stroke, and encephalopathy of prematurity. Such insults affect many thousands of infants each year. Excitotoxicity causes frank lesions due to cell death and gliosis and disturbs normal developmental process, leadin...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000464131
更新日期:2017-01-01 00:00:00
abstract::The rate of glutaminase-dependent metabolism of glutamine in intact astrocytes was determined under conditions in which the extracellular concentration of glutamine was varied between 0.2 and 3.2 mM glutamine for control and dibutyryl cyclic AMP (dBcAMP)-treated cells. Glutamine metabolism by intact cells increased wi...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111410
更新日期:1996-01-01 00:00:00
abstract::Oligodendrocytes from the shiverer mutant mouse are missing most of the myelin basic protein (Mbp) gene. In axon-free cultures, they produce membrane sheets with abnormally assembled microtubule and actin-based structures. This suggests that an Mbp gene product may have an important role in regulating the organization...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111237
更新日期:1997-01-01 00:00:00
abstract::Evidence from retroviral marking techniques and immortalized cell lines indicates that multipotential stem cells exist in many areas of the developing central nervous system. However, the factors that influence the commitment of these stem cells into distinct neuronal or glial lineages are not known. We have created a...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111301
更新日期:1995-01-01 00:00:00
abstract::Using Western blot and immunocytochemistry to detect protein, and in situ hybridization and Northern blot to detect RNA, we studied the expression of Na,K-ATPase subunit isoforms in cultured astrocytes and oligodendrocytes in vitro, and in glial cells in the brain. We found that astrocytes in culture express alpha 1 a...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111422
更新日期:1996-01-01 00:00:00
abstract::The myelin-associated glycoprotein (MAG) is a 100 K-dalton, integral membrane glycoprotein containing 30% carbohydrate that is in central and peripheral myelin sheaths. Recent research on its function during normal myelinogenesis and possible roles in the pathology of demyelinating diseases is reviewed. Emphasis is pl...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000112356
更新日期:1983-01-01 00:00:00
abstract::Adrenoleukodystrophy (ALD) is an X-linked recessive disorder that affects mainly the nervous system white matter and the adrenal cortex. It is associated with an abnormal accumulation of saturated very long chain fatty acids and can be diagnosed by demonstrating an excess of these substances in plasma or red cells. Ou...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000112170
更新日期:1991-01-01 00:00:00
abstract::The current work tested the hypothesis that the zinc status of a cell influences its sensitivity to iron-induced oxidative stress. Human IMR-32 neuroblastoma cells were cultured for 24 h in nonchelated control media (5 microM zinc; 4.5 microM iron), or in media that was treated with DTPA to reduce its zinc content (ch...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000065691
更新日期:2002-01-01 00:00:00
abstract::The neurochemical effect of postnatal exposure to methadone (METH), undernutrition (UND), and methadone and undernutrition (METH-UND) on the whole brain and cerebellum were examined in 21- and 60-day-old rats. At 21 days, body weight reductions of UND and METH-UND rats exceeded that of the METH animals. However, METH ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112698
更新日期:1982-01-01 00:00:00
abstract::In the era of therapeutic hypothermia, reliable preclinical studies are integral to successfully identify neuroprotective strategies to further improve outcomes of encephalopathy at term. We reviewed preclinical neuroprotection studies reported between January 2014 and June 2016 to assess the use of effective temperat...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000452859
更新日期:2017-01-01 00:00:00
abstract::As a step toward using two closely related members of the nuclear receptor family, RORalpha and RORbeta, as markers and tools for genetic manipulations in mouse forebrain, we have used in situ hybridization to analyze their expression from E10.5 to P7. At later embryonic and early postnatal ages, RORalpha expression i...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000072271
更新日期:2003-03-01 00:00:00