Development of cortical fibres into the gracile nucleus of the rat: an ultrastructural study.

Abstract:

:A study was made on the development of cortical synapses in the gracile nucleus of rats using degeneration methods. A total of 46 animals, 1 adult and 45 neonates whose ages varied from 1 to 7 days, had the right somatosensory motor cortex destroyed. The survival period varied from 1 to 30 days. Identification of axonal terminals in the gracile nucleus was also achieved by tracing the cortical fibres of 1 adult rat using horseradish peroxidase-wheat germ agglutinin (HRP-WGA). Degenerating axodendritic and axosomatic terminals that originated from cortical fibres were seen in the adult animal which survived 2 days. Their origin was confirmed by the presence of HRP-WGA inside the terminals. Light or electron microscopic changes were not seen, and in particular, the gracile nucleus was not smaller than in the control adult animals which survived 30 days or in neonates which survived 8-30 days, consistent with the small component of cortifugal fibres believed to terminate in secondary sensory nuclei. In neonates that survived a shorter period, terminal degeneration was only seen in cases operated at 4 days and later, indicating that cortical axons do not synapse in the gracile nucleus until postnatal day 4. Our results provide further support for the existence of a period in which the fibres approach their target but do not penetrate it to form synaptic junctions during the growth of cortical axons toward their targets, since previous studies have demonstrated that cortical fibres persisting to adulthood decussate completely at the level of the medulla at 12-36 h after birth.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Dev Neurosci

authors

Chimelli L,Bello AR,Scaravilli F

doi

10.1159/000112118

subject

Has Abstract

pub_date

1994-01-01 00:00:00

pages

260-6

issue

5-6

eissn

0378-5866

issn

1421-9859

journal_volume

16

pub_type

杂志文章
  • Effect of undernutrition on the regional development of transmitter enzymes: glutamate decarboxylase and choline acetyltransferase.

    abstract::The effect of undernutrition on the activity of glutamate decarboxylase (GAD) and choline acetyltransferase (ChAc) (markers for the GABA-ergic and the cholinergic transmitter system, respectively) was studied in various parts of the rat brain at the age of 10, 15 and 21 days, and at day 54 following 33 days of rehabil...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000112551

    authors: Patel AJ,del Vecchio M,Atkinson DJ

    更新日期:1978-01-01 00:00:00

  • Giving uridine and/or docosahexaenoic acid orally to rat dams during gestation and nursing increases synaptic elements in brains of weanling pups.

    abstract::Developing neurons synthesize substantial quantities of membrane phospholipids in producing new synapses. We investigated the effects of maternal uridine (as uridine-5'-monophosphate) and docosahexaenoic acid supplementation on pups' brain phospholipids, synaptic proteins and dendritic spine densities. Dams consumed n...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000193394

    authors: Cansev M,Marzloff G,Sakamoto T,Ulus IH,Wurtman RJ

    更新日期:2009-01-01 00:00:00

  • Postnatal development of the complexes of the electron transport chain in synaptic mitochondria from rat brain.

    abstract::The postnatal development of the complexes of the electron transport chain in mitochondria isolated from rat brain synaptosomes was investigated. Synaptosomal brain mitochondria were isolated from rats aged 10-60 days, and the activities of mitochondrial complex I, complex II-III, complex IV and complex V were measure...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000111289

    authors: Almeida A,Brooks KJ,Sammut I,Keelan J,Davey GP,Clark JB,Bates TE

    更新日期:1995-01-01 00:00:00

  • Cerebellar soluble lectin is responsible for cell adhesion and participates in myelin compaction in cultured rat oligodendrocytes.

    abstract::Cultures of rat oligodendrocytes were used to test the possible role of the cerebellar soluble lectin (CSL) in myelin formation. Immunocytochemistry at the ultrastructural level showed that the lectin is present in the cytoplasm of the perikaryon of cultured oligodendrocytes and also on the plasma membrane of the cell...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000111970

    authors: Kuchler S,Fressinaud C,Sarlieve LL,Vincendon G,Zanetta JP

    更新日期:1988-01-01 00:00:00

  • Glutathione protects astrocytes from peroxynitrite-mediated mitochondrial damage: implications for neuronal/astrocytic trafficking and neurodegeneration.

    abstract::In this study we have examined the susceptibility of the mitochondrial respiratory chain of astrocytes and astrocytes depleted of glutathione to peroxynitrite exposure. Astrocytes, as reported previously by us, appeared resistant to the actions of peroxynitrite. In contrast, depletion (-94%) of astrocytic glutathione ...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000111432

    authors: Barker JE,Bolaños JP,Land JM,Clark JB,Heales SJ

    更新日期:1996-01-01 00:00:00

  • Synapse formation is related to the onset of neuron-specific enolase immunoreactivity in the avian auditory and vestibular systems.

    abstract::Neuron-specific enolase (NSE) is a unique form of the glycolytic enzyme, enolase, which, in the brain, is strictly localized in differentiated neurons and neuroendocrine cells. In this report evidence is presented that NSE is first seen in the cell bodies of developing chick auditory and vestibular neurons shortly aft...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000112689

    authors: Whitehead MC,Marangos PJ,Connolly SM,Morest DK

    更新日期:1982-01-01 00:00:00

  • Glial disturbances in isolated neocortex: evidence from immunohistochemistry of intraocular grafts.

    abstract::Cortex cerebri pieces from fetal donors were homologously and bilaterally grafted to the anterior eye chamber of adult albino rats. After intraocular maturation, presence of an external glial membrane, glial membranes surrounding blood vessels and cortical astrocytes was demonstrated using antisera raised against glia...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000112703

    authors: Björklund H,Dahl D

    更新日期:1982-01-01 00:00:00

  • Oligodendroglial alterations and the role of microglia in white matter injury: relevance to schizophrenia.

    abstract::Schizophrenia is a chronic and debilitating mental illness characterized by a broad range of abnormal behaviors, including delusions and hallucinations, impaired cognitive function, as well as mood disturbances and social withdrawal. Due to the heterogeneous nature of the disease, the causes of schizophrenia are very ...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000346157

    authors: Chew LJ,Fusar-Poli P,Schmitz T

    更新日期:2013-01-01 00:00:00

  • Stimulatory role of glial cells on the differentiation of dissociated chick embryo encephalon cells.

    abstract::Dissociated cells from chick embryo encephalon of 36 h of incubation have been cultivated on fibroblast, meningeal cell, or glial layers. Within the first 24 h of cultivation, cells adhered to the preformed layers more firmly than to plastic or collagen surfaces. After 48 h of cultivation, the brain cells cultured on ...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000112568

    authors: Touzet N,Sensenbrenner M

    更新日期:1978-01-01 00:00:00

  • A morphological and biochemical study of myelinogenesis in fish brain.

    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

    authors: Jeserich G

    更新日期:1981-01-01 00:00:00

  • Fetal development and neuronal/glial cell specificity of cAMP-dependent protein kinase subunit mRNAs in rat brain.

    abstract::All known actions of cAMP in the brain require cAMP-dependent protein kinase (cAMPdPK), which consists of regulatory (R) and catalytic (C) subunits (R2C2). Using homologous rat cDNAs for all known cAMPdPK subunit isoforms found in the brain (RI alpha, RI beta, RII alpha, RII beta, C alpha, C beta) we observe that, in ...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000112140

    authors: Massa JS,Walker PS,Moser DR,Fellows RE,Maurer RA

    更新日期:1991-01-01 00:00:00

  • Myelin-associated glycoprotein in development and disease.

    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

    authors: Quarles RH

    更新日期:1983-01-01 00:00:00

  • Synaptic responses of neurons in heterotopic gray matter in an animal model of cortical dysgenesis.

    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

    authors: Smith BN,Dudek FE,Roper SN

    更新日期:1999-11-01 00:00:00

  • Phase separation of myelin proteins in triton X-114: differential behavior of myelin basic protein in purified myelin and in cultured oligodendrocytes.

    abstract::Rabbit central (CNS) and peripheral nervous system (PNS) myelin, as well as nonmyelinating pig oligodendrocytes in culture, were extracted at 0-4 degrees C with the nonionic detergent Triton X-114. The solubilized proteins were partitioned into the detergent-rich and detergent-depleted (aqueous) phases that form upon ...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000111935

    authors: Bürgisser P,Matthieu JM

    更新日期:1989-01-01 00:00:00

  • Expression and modulation of K+ currents in oligodendrocytes: possible role in myelinogenesis.

    abstract::We have used whole-cell and single-channel recording techniques to investigate the electrophysiological properties of cultured ovine oligodendrocytes (OLGs). Our studies have led to the following conclusions. (1) Cultured mature OLGs express a variety of voltage-dependent K+ conductances including an outward current t...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章,评审

    doi:10.1159/000111893

    authors: Soliven B,Szuchet S,Arnason BG,Nelson DJ

    更新日期:1989-01-01 00:00:00

  • Maternal Inflammation Results in Altered Tryptophan Metabolism in Rabbit Placenta and Fetal Brain.

    abstract::Maternal inflammation has been linked to neurodevelopmental and neuropsychiatric disorders such as cerebral palsy, schizophrenia, and autism. We had previously shown that intrauterine inflammation resulted in a decrease in serotonin, one of the tryptophan metabolites, and a decrease in serotonin fibers in the sensory ...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000471509

    authors: Williams M,Zhang Z,Nance E,Drewes JL,Lesniak WG,Singh S,Chugani DC,Rangaramanujam K,Graham DR,Kannan S

    更新日期:2017-01-01 00:00:00

  • Use of intracellular versus extracellular specific activities in calculation of glutamine metabolism in astrocytes: effect of dibutyryl cyclic AMP.

    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

    authors: Zielke HR,Tildon JT,Zielke CL

    更新日期:1996-01-01 00:00:00

  • Can lateralizing sensorimotor deficits be identified after neonatal cerebral hypoxia-ischemia in rats?

    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

    authors: Grow JL,Liu YQ,Barks JD

    更新日期:2003-11-01 00:00:00

  • Immunohistochemical demonstration of L-ornithine decarboxylase enzyme protein in different areas of the developing human brain.

    abstract::L-Ornithine decarboxylase (ODC), the rate-limiting enzyme of polyamine biosynthesis and thus a unique marker of the proliferation and maturation processes, has been localized by means of immunohistochemistry in the human central nervous system. The enzyme protein has not only been found in the developing nervous syste...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000111320

    authors: Müller M,Pajunen AE,Järvinen M,Poeggel G,Bernstein HG

    更新日期:1993-01-01 00:00:00

  • Developmental changes of the GABA and polyamine systems in isolated neurons in cell culture.

    abstract::Dissociated cells of cerebral hemispheres from 8-day-old chick embryos were cultivated for 8 days in polylysine-coated Petri dishes. Changes of DNA, RNA, total proteins, putrescine, spermidine, spermine, free amino acids and enzymes involved in polyamine and GABA metabolism were studied throughout neuronal development...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000112755

    authors: Seiler N,Sarhan S,Roth-Schechter BF

    更新日期:1981-01-01 00:00:00

  • Development of skeletal muscle sodium and potassium currents in zebrafish sofa potato mutants.

    abstract::In some cells, the development of voltage-gated channels requires synaptic input, while in others it does not. Here we investigate whether the sodium and potassium currents in the skeletal muscle of zebrafish sofa potato (sop(-/-)) mutants develop normally. Zebrafish sop(-/-) mutants do not express nicotinic acetylcho...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000207794

    authors: Coutts CA,Cunningham ME,Ali DW

    更新日期:2009-01-01 00:00:00

  • Effects of perinatal thyroxine and/or corticosterone treatment on the ontogenesis of hypothalamic and mesencephalic norepinephrine and dopamine content.

    abstract::The norepinephrine content of hypothalamus in vehicle-treated control rats gradually increases between days 16 and 45 of life. Norepinephrine contents of the hypothalamus and mesencephalon of the thyroxine-treated (10 microgram/g b.w., s.c., days 8-10) animals also increase between days 16 and 21. Mesencephalic and hy...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000112377

    authors: Lengvári I,Branch BJ,Taylor AN

    更新日期:1980-01-01 00:00:00

  • Basic fibroblast growth factor exhibits dual and rapid regulation of cyclin D1 and p27 to stimulate proliferation of rat cerebral cortical precursors.

    abstract::While extracellular signals play a major role in brain neurogenesis, little is known about the cell cycle machinery underlying mitogen stimulation of precursor proliferation. Current models suggest that the D cyclins function as primary sensors of extracellular mitogens. Here we define the mechanisms by which basic fi...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000082137

    authors: Li B,DiCicco-Bloom E

    更新日期:2004-03-01 00:00:00

  • Apotransferrin decreases migration and enhances differentiation of oligodendroglial progenitor cells in an in vitro system.

    abstract::We have previously shown that a single intracranial injection of apotransferrin (aTf) in neonatal rats produces an accelerated mylinogenesis and increases the expression of certain myelin proteins such as myelin basic protein (MBP). In the present work, we studied the effects of aTf upon oligodendrocyte progenitor cel...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000064945

    authors: Paez PM,Marta CB,Moreno MB,Soto EF,Pasquini JM

    更新日期:2002-01-01 00:00:00

  • Regionally specific effects of BDNF on oligodendrocytes.

    abstract::To define the effects of neurotrophins on oligodendrocytes, we monitored NGF, BDNF and NT-3 actions on basal forebrain (BF) and cortical populations. NGF, BDNF and NT-3 applied to BF oligodendrocytes elicited increases in expression of myelin basic protein (MBP) and enhanced the numbers of MBP+ cells, without affectin...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000072261

    authors: Du Y,Fischer TZ,Lee LN,Lercher LD,Dreyfus CF

    更新日期:2003-03-01 00:00:00

  • A developmental model for studying choline acetyltransferase transport in chick motoneurons.

    abstract::The proximodistal axonal transport of choline acetyltransferase (ChAc) has been studied in the chick sciatic nerve in the absence of any experimental manipulation. The phenomenon utilized by us is a physiological transient fall in the activity of ChAc. This fall occurs in most areas of the chick central nervous system...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000112484

    authors: Giacobini G,Cannas M,Panattoni GL,Filogamo G

    更新日期:1979-01-01 00:00:00

  • In vivo Monitoring of Cerebral Hemodynamics in the Immature Rat: Effects of Hypoxia-Ischemia and Hypothermia.

    abstract:BACKGROUND:Neonatal hypoxic-ischemic (HI) encephalopathy occurs in 1-4 per 1,000 live term births and can cause devastating neurodevelopmental disabilities. Currently, therapeutic hypothermia (TH) is the only treatment with proven efficacy. Since TH is associated with decreased cerebral metabolism and cerebral blood fl...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000381704

    authors: Buckley EM,Patel SD,Miller BF,Franceschini MA,Vannucci SJ

    更新日期:2015-01-01 00:00:00

  • Immunoultrastructural expression of ICAM-1 and PECAM-1 occurs prior to structural maturity of the murine blood-brain barrier.

    abstract::This study investigated the time of expression of two endothelial cell adhesion molecules, ICAM-1/CD54 and PECAM-1/CD31 in the developing postpartum mouse blood-brain barrier (BBB). Immunoultrastructural studies demonstrated that both adhesion molecules are initially expressed primarily on the luminal endothelial cell...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000017352

    authors: Lossinsky AS,Wisniewski HM

    更新日期:1998-01-01 00:00:00

  • Ontogeny of oxytocin-like immunoreactivity in the cuttlefish, Sepia officinalis, central nervous system.

    abstract::In vertebrate species, the neuropeptide oxytocin (OT) has been implicated in neural and behavioral development. Although several OT-like peptides have been characterized in invertebrate species, the ontogenesis of the OT-like system has not yet been described in these species. Thus, the aim of the present study was to...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章

    doi:10.1159/000235942

    authors: Bardou I,Maubert E,Leprince J,Chichery R,Dallérac G,Vaudry H,Agin V

    更新日期:2010-03-01 00:00:00

  • Magnesium is not consistently neuroprotective for perinatal hypoxia-ischemia in term-equivalent models in preclinical studies: a systematic review.

    abstract::There is an important unmet need to further improve the outcome of neonatal encephalopathy in term infants. Meta-analyses of large controlled trials now suggest that maternal magnesium sulfate (MgSO4) therapy is associated with a reduced risk of cerebral palsy and gross motor dysfunction after premature birth, but tha...

    journal_title:Developmental neuroscience

    pub_type: 杂志文章,评审

    doi:10.1159/000362206

    authors: Galinsky R,Bennet L,Groenendaal F,Lear CA,Tan S,van Bel F,Juul SE,Robertson NJ,Mallard C,Gunn AJ

    更新日期:2014-01-01 00:00:00