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Genomes and Genes | J DefelipeSummaryCountry: Spain Publications
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Catecholaminergic innervation of pyramidal neurons in the human temporal cortexRuth Benavides-Piccione
Instituto Cajal (CSIC, Madrid, Spain
Cereb Cortex 15:1584-91. 2005..Thus, this aspect of human cortical organization is likely to have important implications in cortical function...
PSA-NCAM immunoreactivity in chandelier cell axon terminals of the human temporal cortexJon I Arellano
Instituto Cajal, CSIC, E 28002 Madrid, Spain
Cereb Cortex 12:617-24. 2002..The results suggest that chandelier terminals in layers II and III of the human entorhinal cortex and temporal neocortex might be particularly susceptible to plastic changes...
Pyramidal cell specialization in the occipitotemporal cortex of the vervet monkeyGuy N Elston
Vision, Touch and Hearing Research Centre, School of Biomedical Sciences and Queensland Brain Institute, The University of Queensland, Queensland 4072, Australia
Neuroreport 16:967-70. 2005..These findings support earlier reports of interareal specialization in pyramidal cell structure in occipitotemporal visual areas in the macaque monkey...
Double-bouquet cells in the monkey and human cerebral cortex with special reference to areas 17 and 18Javier DeFelipe
Cajal Institute CSIC, Avenida Dr Arce 37, 28002 Madrid, Spain
Prog Brain Res 154:15-32. 2006..This suggests important differences in the microcolumnar organization between these areas, the functional significance of which awaits detailed correlative physiological and microanatomical studies...
[The neuropathology of temporal lobe epilepsy: primary and secondary changes in the cortical circuits and epileptogenicity]J DeFelipe Oroquieta
Unidad de Neuropatologia, Instituto Cajal, CSIC, Madrid, 28002, Espana
Rev Neurol 34:401-8. 2002..This anomalous activity causes changes in the target region (gliosis and neuronal loss) which leads to epileptogenic synaptic reorganization similar to that occurring in the primary perilesional areas...
Spaceflight induces changes in the synaptic circuitry of the postnatal developing neocortexJ Defelipe
Instituto Cajal CSIC, Avenida Dr Arce 37, 28002 Madrid, Spain
Cereb Cortex 12:883-91. 2002..These results indicates that terrestrial gravity is a necessary environmental parameter for normal cortical synaptogenesis. These findings are fundamental in planning future long-term spaceflights...
Cortical interneurons: from Cajal to 2001Javier DeFelipe
Instituto Cajal CSIC, Avenida del Doctor Arce 37, 28002 Madrid, Spain
Prog Brain Res 136:215-38. 2002..10. Given the complexity of cortical circuits and the areal and species differences, it is impossible to draw a "sufficiently" complete basic diagram of cortical microcircuitry that is valid for all cortical areas and species...
Sesquicentenary of the birthday of Santiago Ramón y Cajal, the father of modern neuroscienceJavier DeFelipe
Cajal Institute CSIC, Ave Dr Arce 37, 28002 Madrid, Spain
Trends Neurosci 25:481-4. 2002..These studies represent the roots of what are today some of the most exciting areas of discovery in terms of the structure and function of the brain in both sickness and health...
Microstructure of the neocortex: comparative aspectsJavier DeFelipe
Instituto Cajal CSIC, Avenida Dr Arce, 37, 28002 Madrid, Spain
J Neurocytol 31:299-316. 2002..In turn, the differences probably indicate the evolutionary adaptation of excitatory and inhibitory circuits to particular functions...
Cortical microanatomy and human brain disorders: epilepsyJavier DeFelipe
Instituto Cajal, , Madrid, Spain
Cortex 40:232-3. 2004
From the connectome to the synaptome: an epic love storyJavier DeFelipe
Instituto Cajal Consejo Superior de Investigaciones Científicas and Laboratorio de Circuitos Corticales Centro de Tecnologí Biomédica, Universidad Politecnica de Madrid, Spain
Science 330:1198-201. 2010....
Brain plasticity and mental processes: Cajal againJavier DeFelipe
Instituto Cajal CSIC, Avenida Dr Arce, 37, Madrid 28002, Spain
Nat Rev Neurosci 7:811-7. 2006..Here, I focus on some of these early experiments and how they continue to influence studies of brain plasticity...
The human temporal cortex: characterization of neurons expressing nitric oxide synthase, neuropeptides and calcium-binding proteins, and their glutamate receptor subunit profilesM C Gonzalez-Albo
Instituto Cajal CSIC, Avenida Dr Arce, 37, 28002 Madrid, Spain
Cereb Cortex 11:1170-81. 2001..Thus, various distinct, but overlapping, inhibitory circuits may act in concert in the modulation of normal cortical function, plasticity and disease...
[Chandelier cells and their possible implication in epilepsy]J de Felipe
Instituto Cajal, Madrid
Neurologia 14:7-19. 1999..In this article, we explain the hypothesis that chandelier cells (which are considered to be the most powerful cortical inhibitory interneuron) may represent a key component in the etiology of epilepsy...
Local changes in GTP-binding protein immunoreactivities in human epileptogenic neocortexJ Defelipe
Instituto Cajal CSIC, Madrid, Spain
Exp Brain Res 119:153-8. 1998..Moreover, our results suggest that high levels of Gi1alpha and low levels of the other G-protein subtypes appear to be associated with a greater susceptibility to maintaining spiking activity...
Types of neurons, synaptic connections and chemical characteristics of cells immunoreactive for calbindin-D28K, parvalbumin and calretinin in the neocortexJ Defelipe
Instituto Cajal CSIC, Madrid, Spain
J Chem Neuroanat 14:1-19. 1997..However, a certain overlap exits, which also shows regional and species differences...
Distribution and patterns of connectivity of interneurons containing calbindin, calretinin, and parvalbumin in visual areas of the occipital and temporal lobes of the macaque monkeyJ Defelipe
Instituto Cajal CSIC, 28002 Madrid, Spain
J Comp Neurol 412:515-26. 1999..The differences may represent regional specializations related to the different processing of visual stimuli, whereas the similarities may be attributed to general functional requisites for interneuronal circuitry...
Chandelier cells and epilepsyJ Defelipe
Instituto Cajal CSIC, Madrid, Spain
Brain 122:1807-22. 1999..Evidence suggests that the loss of chandelier cells may be non-specific and that when this occurs epilepsy may develop. Therefore, these cells might represent a key component in the aetiology of human temporal lobe epilepsy...
Estimation of the number of synapses in the cerebral cortex: methodological considerationsJ Defelipe
Instituto Cajal CSIC, Madrid, Spain
Cereb Cortex 9:722-32. 1999..Finally, based on our present results and previous literature, we propose a simple general protocol for estimating the numerical synaptic density by volume in the neuropil of the cerebral cortex...
Microanatomy of the dysplastic neocortex from epileptic patientsL Alonso-Nanclares
Instituto Cajal, CSIC, Madrid, Spain
Brain 128:158-73. 2005..We discuss the possible relationship between these alterations and epilepsy, bearing in mind the possible limitations that preclude the extrapolation of the results to the whole population of epileptic patients with dysplastic neocortex...
Histopathology and reorganization of chandelier cells in the human epileptic sclerotic hippocampusJ I Arellano
, Instituto Cajal, CSIC, Madrid, Spain
Brain 127:45-64. 2004..When considered along with other extrahippocampal alterations, we suggest that these changes are important in the pathophysiology of temporal lobe epilepsy associated with hippocampal sclerosis...
Density and morphology of dendritic spines in mouse neocortexI Ballesteros-Yáñez
Cajal Institute CSIC, Avda Dr Arce 37, 28002 Madrid, Spain
Neuroscience 138:403-9. 2006....
Non-synaptic dendritic spines in neocortexJ I Arellano
Departamento de Neuroanatomia y Biologia Celular, Instituto Cajal CSIC, Ave Dr Arce, 37, 28002 Madrid, Spain
Neuroscience 145:464-9. 2007..6% of the spines clearly lacked synapses. Nonsynaptic spines were small and had no clear head, resembling dendritic filopodia, and could represent a source of new synaptic connections in the adult cerebral cortex...
Neuropathological findings in a patient with epilepsy and the Parry-Romberg syndromeJ Defelipe
Instituto Cajal, CSIC, Madrid, Spain
Epilepsia 42:1198-203. 2001..This study is the first reported case of the Parry-Romberg syndrome, with intractable temporal lobe epilepsy, in which detailed microanatomic analyses have been performed on resected brain tissue obtained after surgical intervention...
Pyramidal cell axons show a local specialization for GABA and 5-HT inputs in monkey and human cerebral cortexJ Defelipe
Instituto Cajal CSIC, Ave Dr Arce, 37, 28002 Madrid, Spain
J Comp Neurol 433:148-55. 2001....
Changes in the colocalization of glutamate ionotropic receptor subunits in the human epileptic temporal lobe cortexM C Gonzalez-Albo
Instituto Cajal CSIC, Avenida Dr Arce 37, 28002 Madrid, Spain
Exp Brain Res 138:398-402. 2001..These changes may lead to profound modifications in the functioning of excitatory synaptic circuits in spiking cortex...
Layer-specific alterations to CA1 dendritic spines in a mouse model of Alzheimer's diseaseP Merino-Serrais
Instituto Cajal CSIC, Madrid, Spain
Hippocampus 21:1037-44. 2011..Since dendritic spines bear most of the excitatory synapses in the brain, changes in spine morphology may be one of the factors contributing to the cognitive impairments observed in this AD model...
Myr+-Gi2 alpha and Go alpha subunits restore the efficacy of opioids, clonidine and neurotensin giving rise to antinociception in G-protein knock-down miceJ Garzon
Instituto de Neurobiologia Santiago Ramon y Cajal, Consejo Superior de Investigaciones Cientificas, Madrid, Spain
Neuropharmacology 38:1861-73. 1999..As G-proteins have been implicated in the pathophysiology of several neural disorders, this finding may be valuable in the therapy of such dysfunctions...
Alterations in the phenotype of neocortical pyramidal cells in the Dyrk1A+/- mouseR Benavides-Piccione
Cajal Institute, Av Dr Arce, 37, 28002 Madrid, Spain
Neurobiol Dis 20:115-22. 2005..These results suggest that Dyrk1A influences the size and complexity of pyramidal cells, and thus their capability to integrate information...
Transport of CSF antibodies to Galpha subunits across neural membranes requires binding to the target protein and protein kinase C activityJ Garzon
Instituto de Neurobiologia Santiago Ramon y Cajal, Consejo Superior de Investigaciones Cientificas, Dr Arce 37, E 28002, Madrid, Spain
Brain Res Mol Brain Res 65:151-66. 1999..These results indicate that IgGs delivered into the CSF show a saturable binding to Galpha subunits that translocate to the external side of the neural membrane before being internalized by a PKCbeta1-dependent mechanism...
Chronic cocaine treatment alters dendritic arborization in the adult motor cortex through a CB1 cannabinoid receptor-dependent mechanismI Ballesteros-Yáñez
Cajal Institute, CSIC, Avda Doctor Arce 37, 28002 Madrid, Spain
Neuroscience 146:1536-45. 2007..Our data demonstrate that microanatomy and synaptic connectivity are affected by cocaine, the magnitude and nature of these changes depend on the presence of CB1 receptors...
Perisomatic glutamatergic axon terminals: a novel feature of cortical synaptology revealed by vesicular glutamate transporter 1 immunostainingL Alonso-Nanclares
Instituto Cajal (CSIC, Avenida Dr Arce 37, 28002 Madrid, Spain
Neuroscience 123:547-56. 2004....
Chandelier cell axons are immunoreactive for GAT-1 in the human neocortexJ Defelipe
Instituto Cajal, CSIC, Madrid, Spain
Neuroreport 9:467-70. 1998..These experiments showed that the vast majority of Ch-terminals immunoreactive for GAT-1 were also immunoreactive for PV. We concluded that GAT-1 transporter may have an important functional role in controlling pyramidal cell activity...
Differential distribution of neurons in the gyral white matter of the human cerebral cortexV Garcia-Marin
Laboratorio de Circuitos Corticales, Centro de Tecnología Biomédica, Universidad Politecnica de Madrid, Madrid, Spain
J Comp Neurol 518:4740-59. 2010..By contrast, both symmetric and asymmetric axodendritic synapses were observed in the neuropil. We discuss the possible functional implications of these findings in terms of cortical circuits...
The distribution of chandelier cell axon terminals that express the GABA plasma membrane transporter GAT-1 in the human neocortexM C Inda
Instituto Cajal, CSIC, 28002 Madrid, Spain
Cereb Cortex 17:2060-71. 2007..These differences might be related to the different functional attributes of the cortical regions examined...
Quantitative analysis of parvalbumin-immunoreactive cells in the human epileptic hippocampusA Andrioli
Instituto Cajal CSIC, Avda Dr Arce 37, 28002 Madrid, Spain
Neuroscience 149:131-43. 2007..These findings suggest that, the apparently normal subiculum from sclerotic patients also shows unexpected changes in the density and proportion of PV-ir neurons...
Synaptology of the proximal segment of pyramidal cell basal dendritesL Alonso-Nanclares
Instituto Cajal (CSIC) Ave. Doctor Arce 37, 28002 Madrid, Spain
Eur J Neurosci 19:771-6. 2004..These data further support the idea that inhibitory terminals exclusively innervate the proximal region of basal dendrites...
Gender differences in human cortical synaptic densityL Alonso-Nanclares
Instituto Cajal, Consejo Superior de Investigaciones Cientificas, Avda Doctor Arce, 37, 28002 Madrid, Spain
Proc Natl Acad Sci U S A 105:14615-9. 2008..These differences may represent a microanatomical substrate contributing to the functional gender differences in brain activity...
Lack of thyroid hormone receptor alpha1 is associated with selective alterations in behavior and hippocampal circuitsA Guadano-Ferraz
Instituto de Investigaciones Biomedicas Alberto Sols, CSIC UAM, Madrid, Spain
Mol Psychiatry 8:30-8. 2003....
On dendrites in Down syndrome and DS murine models: a spiny way to learnR Benavides-Piccione
Cajal Institute, 28002 Madrid, Spain
Prog Neurobiol 74:111-26. 2004....
Localization of KCNQ5 in the normal and epileptic human temporal neocortex and hippocampal formationE Yus-Najera
Instituto Cajal, CSIC, Avenida Dr Arce 37, 28002 Madrid, Spain
Neuroscience 120:353-64. 2003....
The effects of morphine self-administration on cortical pyramidal cell structure in addiction-prone lewis ratsI Ballesteros Yanez
Cajal Institute, Spanish National Research Council, Avenida Doctor Arce, 37, 28002 Madrid, Spain
Cereb Cortex 17:238-49. 2007..These results suggest that at least part of the behavioral changes produced by repeated opiate administration may be attributed to alterations in pyramidal cell structure...
Widespread changes in dendritic spines in a model of Alzheimer's diseaseS Knafo
Instituto Cajal CSIC, 28002 Madrid, Spain
Cereb Cortex 19:586-92. 2009..Because large spines are considered to be the physical traces of long-term memory, widespread decrease in the frequency of large spines likely contributes to the cognitive impairments observed in this AD model...
Aromatase expression in the human temporal cortexJ G Yague
Instituto Cajal, Consejo Superior de Investigaciones Cientificas, E 28002 Madrid, Spain
Neuroscience 138:389-401. 2006....
Specialization in pyramidal cell structure in the cingulate cortex of the Chacma baboon (Papio ursinus): an intracellular injection study of the posterior and anterior cingulate gyrus with comparative notes on the macaque and vervet monkeysGuy N Elston
Vision, Touch and Hearing Research Centre, School of Biomedical Sciences and Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
Neurosci Lett 387:130-5. 2005..Moreover, the complexity in pyramidal cell structure in both the anterior and posterior cingulate gyrus of the baboon differed to that in the corresponding regions in either the macaque or vervet monkeys...
Petilla terminology: nomenclature of features of GABAergic interneurons of the cerebral cortexGiorgio A Ascoli
Molecular Neuroscience Department and Center for Neural Informatics, Structures, and Plasticity, Krasnow Institute for Advanced Study, George Mason University, MS2A1, 4400 University Drive, Fairfax, Virginia 22030, USA
Nat Rev Neurosci 9:557-68. 2008..Consistent adoption will be important for the success of such an initiative, and we also encourage the active involvement of the broader scientific community in the dynamic evolution of this project...
Cation-chloride cotransporters and GABA-ergic innervation in the human epileptic hippocampusAlberto Munoz
Instituto Cajal, CSIC, Madrid, Spain
Epilepsia 48:663-73. 2007....
Cortical area and species differences in dendritic spine morphologyRuth Benavides-Piccione
Instituto Cajal, Madrid, Spain
J Neurocytol 31:337-46. 2002..Our data suggests that the average synaptic input is modulated according to cortical area and differs among species. We discuss the implications of these findings for common algorithms of cortical processing...
Spine distribution in cortical pyramidal cells: a common organizational principle across speciesGuy N Elston
Vision, Touch and Hearing Research Centre, Department of Physiology and Pharmacology, University of Queensland, St. Lucia, QLD 4072, Australia
Prog Brain Res 136:109-33. 2002
Correlation of transcriptome profile with electrical activity in temporal lobe epilepsyDominique Arion
Department of Psychiatry and Neurobiology, University of Pittsburgh, School of Medicine, School of Medicine, W1655 Biomedical Science Tower, Pittsburgh, PA 15261, USA
Neurobiol Dis 22:374-87. 2006....
A study of pyramidal cell structure in the cingulate cortex of the macaque monkey with comparative notes on inferotemporal and primary visual cortexGuy N Elston
Vision, Touch and Hearing Research Centre, Department of Physiology and Pharmacology, School of Biomedical Sciences, The University of Queensland, Queensland 4072, Australia
Cereb Cortex 15:64-73. 2005..These results provide further evidence for a parallel between structural and functional specialization in cortex...
Specialization in pyramidal cell structure in the sensory-motor cortex of the Chacma baboon (Papio ursinus) with comparative notes on macaque and vervet monkeysGuy N Elston
Vision, Touch and Hearing Research Centre, Department of Physiology and Pharmacology, School of Biomedical Sciences and Queensland Brain Institute, University of Queensland, Queensland, Australia
Anat Rec A Discov Mol Cell Evol Biol 286:854-65. 2005..In addition, we found subtle differences in the extent of the interareal differences in pyramidal cell structure between homologous cortical areas in the three species...
Neocortical circuits: evolutionary aspects and specificity versus non-specificity of synaptic connections. Remarks, main conclusions and general comments and discussionJavier DeFelipe
Instituto Cajal (CSIC, Madrid, Spain
J Neurocytol 31:387-416. 2002
Macroanatomy and microanatomy of the temporal lobeJavier DeFelipe
Departament of Neuroanatomy and Cell Biology, Instituto Cajal CSIC, Madrid, Spain
Semin Ultrasound CT MR 28:404-15. 2007..With this purpose we have prepared this article, which highlights the ultastructural and macroanatomy of the temporal lobe seen on MRI...
Regional specialization in pyramidal cell structure in the limbic cortex of the vervet monkey (Cercopithecus pygerythrus): an intracellular injection study of the anterior and posterior cingulate gyrusGuy N Elston
Vision, Touch and Hearing Research Centre, School of Biomedical Sciences and Queensland Brain Institute, The University of Queensland, Brisbane, QLD, 4072, Australia
Exp Brain Res 167:315-23. 2005..In addition, the extent of the difference in pyramidal cell structure between these two cortical regions was less in the vervet monkey than in the macaque monkey...
Distribution of neurons expressing tyrosine hydroxylase in the human cerebral cortexRuth Benavides Piccione
Instituto Cajal CSIC, Madrid, Spain
J Anat 211:212-22. 2007..These differences further emphasize the variability in the design of microcircuits between cortical areas and species, and they probably reflect an evolutionary adaptation of cortical circuits to particular functions...
Dendritic size of pyramidal neurons differs among mouse cortical regionsRuth Benavides-Piccione
Instituto Cajal, Madrid, Spain
Cereb Cortex 16:990-1001. 2006..Our data suggest that each cortical region is built with specific neuronal components...
Specializations of the granular prefrontal cortex of primates: implications for cognitive processingGuy N Elston
Vision, Touch and Hearing Research Centre, School of Biomedical Sciences and Queensland Brain Institute, University of Queensland, Australia
Anat Rec A Discov Mol Cell Evol Biol 288:26-35. 2006..In particular, the highly branched, spinous neurons in the human gPFC may be a key component of human intelligence...
Different populations of tyrosine-hydroxylase-immunoreactive neurons defined by differential expression of nitric oxide synthase in the human temporal cortexRuth Benavides-Piccione
Instituto Cajal CSIC, Avenida Dr Arce 37, 28002 Madrid, Spain
Cereb Cortex 13:297-307. 2003..Consequently, it appears that a partial overlap of the catecholaminergic and nitrergic systems is probably due to the intrinsic cortical TH-nNOS-ir neurons...
Voltage-gated ion channels in the axon initial segment of human cortical pyramidal cells and their relationship with chandelier cellsMaria Carmen Inda
, Universidad Complutense de Madrid, Jose Antonio Novais 2, 28040 Madrid, Spain
Proc Natl Acad Sci U S A 103:2920-5. 2006..We suggest that this molecular segregation and the consequent regional specialization of the GABAergic input to the AIS of pyramidal cells may have important functional implications for the control of pyramidal cell activity...
GABABR1 receptor protein expression in human mesial temporal cortex: changes in temporal lobe epilepsyAlberto Munoz
Instituto Cajal, CSIC, Ave Dr Arce 37, 28002 Madrid, Spain
J Comp Neurol 449:166-79. 2002..This reduction in GABA(B)R1a-b expression could contribute to the pathophysiology of temporal lobe epilepsy...
Double bouquet cell in the human cerebral cortex and a comparison with other mammalsInmaculada Ballesteros Yáñez
Cajal Institute, Consejo Superior de Investigaciones Cientificas, Madrid, Spain
J Comp Neurol 486:344-60. 2005..We conclude that, although these interneurons may be an important element in the organization of cortical microcolumns in primates, this is not the case in other mammalian species...
Pyramidal cell specialization in the occipitotemporal cortex of the Chacma baboon (Papio ursinus)Guy N Elston
Vision, Touch and Hearing Research Centre, Dept. of Physiology and Pharmacology, School of Biomedical Sciences and Queensland Brain Institute, The University of Queensland, Brisbane, QLD, 4072 Australia
Exp Brain Res 167:496-503. 2005....
