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1.

001-es BibID:BIBFORM029078
Első szerző:Antal Miklós (orvos, anatómus)
Cím:The termination pattern and postsynaptic targets of rubrospinal fibers in the rat spinal cord : a light and electron microscopic study / M. Antal, G. N. Sholomenko, A. K. Moschovakis, J. Storm-Mathisen, C. W. Heizmann, W. Hunziker
Dátum:1992
ISSN:0021-9967
Megjegyzések:The spinal course, termination pattern, and postsynaptic targets of the rubrospinal tract, which is known to contribute to the initiation and execution of movements, were studied in the rat at the light and electron microscopic levels by using the anterograde tracer Phaseolus vulgaris-leucoagglutinin (PHA-L) in combination with calbindin-D28k (CaBP), gamma-aminobutyric acid (GABA), and glycine immunocytochemistry. After injections of PHA-L unilaterally into the red nucleus, labelled fibers and terminals were detected at cervical, thoracic, and lumbar segments of the spinal cord. Most of the descending fibers were located in the dorsolateral funiculus contralateral to the injection site, but axons descending ipsilaterally were also revealed. Rubrospinal axon terminals were predominantly found in laminae V-VI and in the dorsal part of lamina VII at all levels and on both sides of the spinal cord, but stained collaterals were also seen in the ventrolateral aspect of Clark's column and in the ventral regions of lamina VII on both sides. The proportion of axonal varicosities revealed on the ipsilateral side varied at different segments and represented 10-28% of the total number of labelled boutons. Most of the labelled boutons were engaged in synaptic contacts with dendrites. Of the 137 rubrospinal boutons investigated, only 2 were found to establish axosomatic synaptic junctions in the lumbar spinal cord contralateral to the PHA-L injection. With the postembedding immunogold method, 80.8% of dendrites establishing synaptic contacts with rubrospinal terminals did not show immunoreactivity for either GABA or glycine, whereas 19.2% of them were immunoreactive for both amino acids. Rubrospinal axons made multiple contacts with CaBP-immunoreactive neurons in laminae V-VI. Synaptic contacts between rubrospinal terminals and CaBP-immunoreactive dendrites were identified at the electron microscopic level, and all CaBP-containing postsynaptic dendrites investigated were negative for both GABA and glycine. The results suggest that rubrospinal terminals establish synaptic contacts with both excitatory and inhibitory interneurons in the rat spinal cord, and a population of excitatory interneurons receiving monosynaptic rubrospinal input is located in laminae V-VI.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
külföldön készült közlemény
Megjelenés:Journal of Comparative Neurology. - 325 : 1 (1992), p. 22-37. -
További szerzők:Sholomenko, Gerald N. Moschovakis, A. K. Storm-Mathisen, John Heizmann, C. W. Hunziker, W
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2.

001-es BibID:BIBFORM029075
Első szerző:Antal Miklós (orvos, anatómus)
Cím:Different populations of parvalbumin- and calbindin-D28k-immunoreactive neurons contain GABA and accumulate 3H-D-aspartate in the dorsal horn of the rat spinal cord / M. Antal, E. Polgár, J. Chalmers, J. B. Minson, I. Llewellyn-Smith, C. W. Heizmann, P. Somogyi
Dátum:1991
Megjegyzések:The colocalization of parvalbumin (PV), calbindin-D28k (CaBP), GABA immunoreactivities, and the ability to accumulate 3H-D-aspartate selectively were investigated in neurons of laminae I-IV of the dorsal horn of the rat spinal cord. Following injection of 3H-D-aspartate into the basal dorsal horn (laminae IV-VI), perikarya selectively accumulating 3H-D-aspartate were detected in araldite embedded semithin sections by autoradiography, and consecutive semithin sections were treated to reveal PV, CaBP and GABA by postembedding immunocytochemistry. Perikarya accumulating 3H-D-aspartate were found exclusively in laminae I-III, and no labelled somata were found in deeper layers or in the intermediolateral column although the labelled amino acid clearly spread to these regions. More than half of the labelled cells were localized in lamina II. In this layer, 16.4% of 3H-D-aspartate-labelled perikarya were also stained for CaBP. In contrast to CaBP, PV or GABA was never detected in neurons accumulating 3H-D-aspartate. A high proportion of PV-immunoreactive perikarya were also stained for GABA in laminae II and III (70.0% and 61.2% respectively). However, the majority of CaBP-immunoreactive perikarya were GABA-negative. GABA-immunoreactivity was found in less than 2% of the total population of cells stained for CaBP in laminae I-IV. A significant proportion of the GABA-negative but PV-immunoreactive neurons also showed CaBP-immunoreactivity in laminae II and IV. These results show that out of the two calcium-binding proteins, CaBP is a characteristic protein of a small subpopulation of neurons using excitatory amino acids and PV is a characteristic protein of a subpopulation of neurons utilizing GABA as a transmitter. However, both proteins are present in additional subgroups of neurons, and neuronal populations using inhibitory or excitatory amino acid transmitters are heterogeneous with regard to their content of calcium-binding proteins in the dorsal horn of the rat spinal cord.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
külföldön készült közlemény
Megjelenés:The Journal of comparative neurology. - 314 : 1 (1991), p. 114-124. -
További szerzők:Polgár Erika Chalmers, J. Minson, J. B. Llewellyn-Smith, I. Heizmann, C. W. Somogyi Péter
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3.

001-es BibID:BIBFORM029060
Első szerző:Antal Miklós (orvos, anatómus)
Cím:Calcium-binding proteins, parvalbumin- and calbindin-D 28k-immunoreactive neurons in the rat spinal cord and dorsal root ganglia : a light and electron microscopic study / Miklós Antal, Tamás F. Freund, Erika Polgár
Dátum:1990
ISSN:0021-9967
Megjegyzések:The distribution of two calcium-binding proteins, parvalbumin (PV) and calbindin-D 28K (CaBP), was studied by the peroxidase-anti-peroxidase immunohistochemical method at the light and electron microscopic level in the rat spinal cord and dorsal root ganglia. The possible coexistence of these two proteins was also investigated. PV-positive neurons were revealed in all layers of the spinal cord, except lamina I, which was devoid of labelling. Most of the PV-positive cells were found in the inner layer of lamina II, lamina III, internal basilar nucleus, central gray region, and at the dorsomedial and ventromedial aspects of the lateral motor column in the ventral horn. Neuronal processes intensely stained for PV sharply delineated inner lamina II. With the electron microscope most of them appeared to be dendrites, but vesicle containing profiles were also found in a smaller number. CaBP-positive neurons appeared to be dispersed all over the spinal gray matter. The great majority of them were found in laminae I, II, IV; the central gray region; the intermediolateral nucleus; and in the ventral horn just medial to the lateral motor column. Laminae I and II were densely packed with CaBP-positive punctate profiles that proved to be dendrites and axons in the electron microscope. A portion of labelled neurons in lamina IV and on the ventromedial aspect of the lateral motor column in the ventral horn disclosed both PV- and CaBP-immunoreactivity. All of the funiculi of the spinal white matter contained a large number of fibres immunopositive for both PV and CaBP. The highest density of CaBP-positive fibres was found in the dorsolateral funiculus, which was also densely packed with PV-positive fibres. PV-positive fibres were even more numerous in the dorsal part of the dorsal funiculus. The territory of the gracile funiculus in the brachial cord and that of the pyramidal tract in its whole extent were devoid of labelled fibres. In the thoracic cord, the dorsal nucleus of Clarke received a large number of PV-positive fibres. Dorsal root ganglia displayed both PV- and CaBP-immunopositivity. The cell diameter distribution histogram of PV-positive neurons disclosed two peaks--one at 35 microns and the other at 50 microns. CaBP-positive cells in the dorsal root ganglia corresponded to subgroups of small and large neurons with mean diameters of 25 microns and 45 microns, respectively.(ABSTRACT TRUNCATED AT 400 WORDS)
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Journal of Comparative Neurology. - 295 : 3 (1990), p. 467-484. -
További szerzők:Freund Tamás F. Polgár Erika
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4.

001-es BibID:BIBFORM029046
Első szerző:Antal Miklós (orvos, anatómus)
Cím:Tectal neurons of the frog : intracellular recording and labeling with cobalt electrodes / M. Antal, N. Matsumoto, G. Székely
Dátum:1986
ISSN:0021-9967
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Journal of Comparative Neurology. - 246 (1986), p. 238-253. -
További szerzők:Matsumoto, N. Székely György (1926-2017) (neurobiológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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5.

001-es BibID:BIBFORM001452
Első szerző:Baiou, Djalil
Cím:Neurochemical characterisation of insulin receptor-expressing primary sensory neurons in wild type and vanilloid type 1 transient receptor potential receptor knock-out mice / Baiou D., Santha P., Avelino A., Charrua A., Bácskai T., Matesz K., Cruz F., Nagy I.
Dátum:2007
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:The Journal of comparative neurology 503 : 2 (2007), p. 334-347. -
További szerzők:Sántha Péter Avelino, Antonio Charrua, Ana Bácskai Tímea (1974-) (biológus, neurobiológus) Matesz Klára (1949-) (anatómus, neurobiológus) Cruz, Francisco Nagy István (orvos)
Internet cím:elektronikus változat
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6.

001-es BibID:BIBFORM029084
Első szerző:Berki Ágnes Cs.
Cím:Developmental expression of glycine immunoreactivity and its colocalization with GABA in the embryonic chick lumbosacral spinal cord / Ágnes Cs. Berki, Michael J. O'Donovan, Miklós Antal
Dátum:1995
ISSN:0021-9967
Megjegyzések:The development of immunoreactivity for the putative inhibitory amino acid neurotransmitter glycine was investigated in the embryonic and posthatched chick lumbosacral spinal cord by using postembedding immunocytochemical methods. Glycine immunoreactive perikarya were first observed at embryonic day 8 (E8) both in the dorsal and ventral gray matters. The number of immunostained neurons sharply increased by E10 and was gradually augmented further at later developmental stages. The general pattern of glycine immunoreactivity characteristic of mature animals had been achieved by E12 and was only slightly altered afterward. Most of the immunostained neurons were located in the presumptive deep dorsal horn (laminae IV-VI) and lamina VII, although glycine-immunoreactive neurons were scattered throughout the entire extent of the spinal gray matter. By using some of our previously obtained and published data concerning the development of gamma-aminobutyric acid (GABA)-ergic neurons in the embryonic chick lumbosacral spinal cord, we have compared the numbers, sizes, and distribution of glycine- and GABA-immunoreactive spinal neurons at various developmental stages and found the following marked differences in the developmental characteristics of these two populations of putative inhibitory interneurons. (i) GABA immunoreactivity was expressed very early (E4), whereas immunoreactivity for glycine appeared relatively late (E8) in embryonic development. (ii) In the ventral horn, GABA immunoreactivity declined, whereas immunoreactivity for glycine gradually increased from E8 onward in such a manner that the sum of glycinergic and GABAergic perikarya remained constant during the second half of embryonic development. (iii) Glycinergic and GABAergic neurons showed different distribution patterns in the spinal gray matter throughout the entire course of embryogenesis as well as in the posthatched animal. When investigating the colocalization of glycine and GABA immunoreactivities, perikarya immunostained for both amino acids were revealed at all developmental stages from E8 onward, and the proportions of glycine- and GABA-immunoreactive neurons that were also immunostained for the other amino acid were remarkably constant during development. The characteristic features of the development of the investigated putative inhibitory spinal interneurons are discussed and correlated with previous neuroanatomical and physiological studies.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Journal of Comparative Neurology. - 362 : 4 (1995), p. 583-596. -
További szerzők:O'Donovan, Michael Antal Miklós (1951-) (orvos, anatómus)
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7.

001-es BibID:BIBFORM029352
Első szerző:Birinyi András (anatómus, neurobiológus)
Cím:Quantitative morphological analysis of the motoneurons innervating muscles involved in tongue movements of the frogRana esculenta / Birinyi András, Székely György, Csapó Krisztina, Matesz Klára
Dátum:2004
ISSN:0021-9967
Megjegyzések:We give an account of an effort to make quantitative morphological distinctions between motoneurons of the frog innervating functionally different groups of muscles involved in the movements of the tongue. The protractor, retractor, and inner muscles of the tongue were considered on the basis of their major action during the prey-catching behavior of the frog. Motoneurons were selectively labeled with cobalt lysin through the nerves of the individual muscles, and dendritic trees of successfully labeled neurons were reconstructed. Each motoneuron was characterized by 15 quantitative morphological parameters describing the size of the soma and dendritic tree and 12 orientation variables related to the shape and orientation of the dendritic field. The variables were subjected to multivariate discriminant analysis to find correlations between form and function of these motoneurons. According to the morphological parameters, the motoneurons were classified into three functionally different groups weighted by the shape of the perikaryon, mean diameter of stem dendrites, and mean length of dendritic segments. The most important orientation variables in the separation of three groups were the ellipses describing the shape of dendritic arborization in the horizontal, frontal, and sagittal planes of the brainstem. These findings indicate that characteristic geometry of the dendritic tree may have a preference for one array of fibers over another.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Journal Of Comparative Neurology. - 470 : 4 (2004), p. 409-421. -
További szerzők:Székely György (1926-2017) (neurobiológus) Csapó Krisztina Matesz Klára (1949-) (anatómus, neurobiológus)
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8.

001-es BibID:BIBFORM029093
Első szerző:Birinyi András (anatómus, neurobiológus)
Cím:Synaptic targets of commissural interneurons in the lumbar spinal cord of neonatal rats / Birinyi A., Viszokay K., Wéber I., Kiehn O., Antal M.
Dátum:2003
ISSN:0021-9967
Megjegyzések:There is strong evidence that commissural interneurons, neurons with axons that extend to the contralateral side of the spinal cord, play an important role in the coordination of left/right alternation during locomotion. In this study we investigated the projections of commissural interneurons to motor neurons and other commissural interneurons on the other side of the spinal cord in neonatal rats. To establish whether there are direct contacts between axons of commissural interneurons and motor neurons, we carried out two series of experiments. In the first experiment we injected biotinylated dextran amine (BDA) into the lateral motor column to retrogradely label commissural interneurons that may have direct projections to motor neurons. Stained neurons were recovered in the ventromedial areas of the contralateral gray matter in substantial numbers. In the second experiment BDA was injected into the ventromedial gray matter on one side of the lumbar spinal cord, whereas motor neurons were simultaneously labeled on the opposite side by applying biocytin onto the ventral roots. BDA injections into the ventromedial gray matter labeled a strong axon bundle that arose from the site of injection, crossed the midline in the ventral commissure, and extensively arborized in the contralateral ventral gray matter. Many of these axons made close appositions with dendrites and somata of motor neurons and also with commissural interneurons retrogradely labeled with BDA. The results suggest that commissural interneurons may establish monosynaptic contacts with motor neurons on the opposite side of the spinal cord. Our findings also indicate that direct reciprocal connections between commissural interneurons on the two sides of the spinal cord may also exist.
Tárgyszavak:Orvostudományok Elméleti orvostudományok magyar nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Journal Of Comparative Neurology. - 461 : 4 (2003), p. 429-440. -
További szerzők:Viszokay Kornél Wéber Ildikó (1972-) (biológus, neurobiológus) Kiehn, Ole Antal Miklós (1951-) (orvos, anatómus)
Pályázati támogatás:046121
OTKA
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9.

001-es BibID:BIBFORM029088
Első szerző:Birinyi András (anatómus, neurobiológus)
Cím:Zinc co-localizes with GABA and glycine in synapses in the lamprey spinal cord / Birinyi A., Parker D., Antal M., Shupliakov O.
Dátum:2001
ISSN:0021-9967
Megjegyzések:The presence of zinc in synaptic terminals in the lamprey spinal cord was examined utilizing a modification of the Timm's sulfide silver method and with the fluorescent marker 6-methoxy-8-quinolyl-p-toluenesulfonamide (TSQ). Axons labeled with a Timm's staining method were predominantly located in the lateral region of the dorsal column. This correlated with a maximum of TSQ fluorescence in this region of the spinal cord. Single labeled terminals accumulating Timm reaction product were also found throughout the gray matter and fiber tracts. At the ultrastructural level, zinc was located in a population of synaptic terminals that co-localized gamma-aminobutyric acid (GABA) and glycine. Possible effects of Zn2+ on neuronal activity were examined. In spinobulbar interneurons, which receive GABAergic input in the dorsal column, zinc potentiated responses to GABA application, but it did not affect responses to GABA in motoneurons. Responses in motoneurons to pressure application of glycine were also not affected by Zn2+. Zinc, however, potentiated monosynaptic glycinergic inhibitory postsynaptic potentials (IPSPs) evoked in motoneurons by inhibitory locomotor network interneurons and increased frequency, but not amplitude of spontaneous miniature IPSPs recorded in the presence of tetrodotoxin (TTX), suggesting presynaptic effects. Glutamate responses and the amplitude of monosynaptic excitatory postsynaptic potentials (EPSPs) in motoneurons were reduced by zinc. These effects appeared to be mediated largely postsynaptically through an effect on the N-methyl-D-aspartate (NMDA) component of the glutamatergic input. Our results thus show that free zinc is present in inhibitory synaptic terminals in the lamprey spinal cord, and that it may function as a modulator of inhibitory synaptic transmission.
Tárgyszavak:Orvostudományok Elméleti orvostudományok magyar nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Journal Of Comparative Neurology. - 433 : 2 (2001), p. 208-221. -
További szerzők:Parker, David (1960-) (vegyész) Antal Miklós (1951-) (orvos, anatómus) Shupliakov, Oleg
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10.

001-es BibID:bibEBI00019271
Első szerző:Buzás Péter
Cím:Model-based analysis of excitatory lateral connections in the visual cortex / Buzás P., Kovács K., Ferecskó A. S., Budd J. M. L., Eysel U. T., Kisvárday Z.F.
Dátum:2006
Megjegyzések:Excitatory lateral connections within the primary visual cortex are thought to link neurons with similar receptive field properties. Here we studied whether this rule can predict the distribution of excitatory connections in relation to cortical location and orientation preference in the cat visual cortex. To this end, we obtained orientation maps of areas 17 or 18 using optical imaging and injected anatomical tracers into these regions. The distribution of labeled axonal boutons originating from large populations of excitatory neurons was then analyzed and compared with that of individual pyramidal or spiny stellate cells. We demonstrate that the connection patterns of populations of nearby neurons can be reasonably predicted by Gaussian and von Mises distributions as a function of cortical location and orientation, respectively. The connections were best described by superposition of two components: a spatially extended, orientation-specific and a local, orientation-invariant component. We then fitted the same model to the connections of single cells. The composite pattern of nine excitatory neurons (obtained from seven different animals) was consistent with the assumptions of the model. However, model fits to single cell axonal connections were often poorer and their estimated spatial and orientation tuning functions were highly variable. We conclude that the intrinsic excitatory network is biased to similar cortical locations and orientations but it is composed of neurons showing significant deviations from the population connectivity rule.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:The Journal of comparative neurology. - 499 : 6 (2006), p. 861-881. -
További szerzők:Kovács Krisztina Ferecskó, Alex S. Budd, Julian M. L. Eysel, Ulf T. Kisvárday Zoltán (1957-) (biológus, neurobiológus)
Internet cím:DOI
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11.

001-es BibID:BIBFORM015606
035-os BibID:15258802
Első szerző:Csépány Tünde (neurológus, pszichiáter)
Cím:Miller Fisher syndrome : a presenting clinical manifestation of lung cancer in apreviously apparently healthy individual / Tunde Csepany, Judit Boczan, Maria T. Magyar, Sandor Molnar, Laszlo Csiba, Judit Decsy, Judit Toth, Szabolcs Felszeghy, Szabolcs Szakall, Zsolt Szentkereszty, Daniel Bereczki
Dátum:2004
ISSN:0340-5354 (Linking)
Tárgyszavak:Orvostudományok Klinikai orvostudományok szerkesztői levél
0 (KRT7 protein, human)
0 (Keratin-7)
0 (Tumor Markers, Biological)
68238-35-7 (Keratins)
Adenocarcinoma/*secondary
Brain/pathology/physiopathology
Brain Neoplasms/*secondary
Cerebrospinal Fluid/cytology
Diagnosis, Differential
Facial Nerve/pathology/physiopathology
Humans
Keratin-7
Keratins/metabolism
Lateral Ventricles/pathology
Lung/pathology/physiopathology
Lung Neoplasms/*pathology
Male
Meningeal Neoplasms/secretion
Middle Aged
Miller Fisher Syndrome/cerebrospinal fluid/*etiology/pathology
egyetemen (Magyarországon) készült közlemény
Oculomotor Nerve/pathology/physiopathology
Tumor Markers, Biological/metabolism
Megjelenés:Journal of Neurology. - 251 : 7 (2004), p. 898-900. -
További szerzők:Boczán Judit (1972-) (neurológus) Magyar Mária Tünde (1970-) (neurológus) Molnár Sándor (1973-) (neurológus) Csiba László (1952-) (neurológus, pszichiáter) Décsy Judit Tóth Judit (1964-) (radiológus) Felszeghy Szabolcs Béla (1972-) (fogorvos, anatómus, kötőszövetbiológus) Szakáll Szabolcs Szentkereszty Zsolt (1961-) (sebész) Bereczki Dániel (1960-) (neurológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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elektronikus elérés
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12.

001-es BibID:BIBFORM098800
035-os BibID:(WoS)000687051800001 (Scopus)85112773766
Első szerző:De Oliveira Miranda, Camila (PhD hallgató)
Cím:Morphological and neurochemical characterization of glycinergic neurons in laminae of the mouse spinal dorsal horn / Miranda Camila Oliveira, Hegedüs Krisztina, Wildner Hendrik, Zeilhofer Hanns Ulrich, Antal Miklós
Dátum:2022
ISSN:0021-9967
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Journal Of Comparative Neurology. - 530 : 3 (2022), p. 607-626. -
További szerzők:Hegedűs Krisztina Wildner, Hendrik Zeilhofer, Hanns Ulrich Antal Miklós (1951-) (orvos, anatómus)
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