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1.

001-es BibID:BIBFORM029049
Első szerző:Antal Miklós (orvos, anatómus)
Cím:Phagocytosis of myelin sheath fragments by dendrites / M. Antal, G. Székely
Dátum:1987
ISSN:0014-4819
Megjegyzések:In serial ultrathin sections of the frog spinal cord, profiles of dendritic appearance were identified that contained myelin fragment inclusions and received synaptic contacts. In a number of cases it could be established that the inclusions were derived from adjacent myelin sheaths. It is suggested that the phenomenon may refer to a turnover of the myelin sheath in which the detached myelin fragments are eliminated by dendrites.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Experimental Brain Research. - 66 : 3 (1987), p. 517-521. -
További szerzők:Székely György (1926-2017) (neurobiológus)
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2.

001-es BibID:BIBFORM029512
Első szerző:Bácskai Tímea (biológus, neurobiológus)
Cím:Primary afferent fibers establish dye-coupled connections in the frog central nervous system / Bácskai T., Matesz C.
Dátum:2002
ISSN:0361-9230
Megjegyzések:Neurobiotin and Lucifer yellow, indicators of gap junctional coupling, were applied to primary afferent fibers of the frog. Following application of tracers to cervical or lumbar dorsal root fibers, a large number of labeled granule cells were detected in the corpus cerebelli, the brainstem, and the spinal cord. The vestibular nerve was found to be in dye-coupled connection with the granule cells of the auricular lobe of the cerebellum. After application of the tracers to the trigeminal nerve, elicited dye-coupled neurons located mainly in the termination area of the descending limb of the mesencephalic trigeminal nucleus. In control experiments with biotinylated dextrane amine, only primary afferent fibers were labeled. Our results suggest that gap junctional coupling exists between primary afferent fibers and their postsynaptic targets in the frog.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Brain Research Bulletin. - 57 : 3-4 (2002), p. 317-319. -
További szerzők:Matesz Klára (1949-) (anatómus, neurobiológus)
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3.

001-es BibID:BIBFORM013205
Első szerző:Bácskai Tímea (biológus, neurobiológus)
Cím:Crossing dendrites of the hypoglossal motoneurons : possible morphological substrate of coordinated and synchronized tongue movements of the frog, Rana esculenta / Timea Bácskai, Gábor Veress, Gábor Halasi, Klára Matesz
Dátum:2010
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Brain Research. - 1313 (2010), p. 89-96. -
További szerzők:Veress Gábor (1971-) (neurobiológus) Halasi Gábor (1976-) (neurobiológus) Matesz Klára (1949-) (anatómus, neurobiológus)
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4.

001-es BibID:BIBFORM004389
Első szerző:Bácskai Tímea (biológus, neurobiológus)
Cím:Dendrodendritic and dendrosomatic contacts between oculomotor and trochlear motoneurons of the frog, Rana esculenta / Tímea Bácskai, Gábor Veress, Gábor Halasi, Ádám Deák, Éva Rácz, György Székely, Clara Matesz
Dátum:2008
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Brain Research Bulletin. - 75 : 2-4 (2008), p. 419-423. -
További szerzők:Veress Gábor (1971-) (neurobiológus) Halasi Gábor (1976-) (neurobiológus) Deák Ádám (1974-) (állatorvos) Rácz Éva (1982-) (biológus) Székely György (1926-2017) (neurobiológus) Matesz Klára (1949-) (anatómus, neurobiológus)
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5.

001-es BibID:BIBFORM029719
Első szerző:Baker, R. E.
Cím:Peripheral reinnervation patterns and dorsal root ganglion cell topograpy in skin-grafted Rana pipiens frogs / Baker R. E., Matesz K., Urban L.
Dátum:1981
ISSN:0361-9230
Megjegyzések:Behavioral responses to mechanical stimulation of the skin were observed in unoperated, 180 degrees skin-rotated and sham-grafted Rana pipiens frogs before and after crushing various cutaneous nerve bundles. In the two control groups, wiping responses directed towards the animal's dorsum were mediated solely via dorsomedial (DM) and dorsolateral (DL) nerve trunks. In skin-rotated frogs, DM and DL nerve trunks were responsible for almost all of the misdirected responses elicited from dorsal cutaneous areas. Six frogs (2 sham- and 4 skin-rotated) possessed some areas of plical skin from which responses could only have been mediated via more ventrally located nerve trunks. However, such dorsal expansions of ventral receptive fields never included the midline skin areas from which misdirected responses had been elicited in the intact animal. The topographic arrangement of cells within the DRG appears to be weakly polarized in cobalt-stained sections, but with large individual variations in size and observed number of neuronal profiles. For the skin-rotated group the ratio of cobalt-filled profiles in the dorsal as compared with the ventral half of the ganglion was 1.6, which did not differ significantly from the control value of 1.9. Taken as a whole, the results of the present study indicate that selective (re)innervation of displaced skin by the original nerve fibers cannot explain the origin of misdirected responses in Rana pipiens.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Brain Research Bulletin. - 7 : 6 (1981), p. 635-638. -
További szerzők:Matesz Klára (1949-) (anatómus, neurobiológus) Urbán László (London, UK)
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6.

001-es BibID:BIBFORM028819
Első szerző:Balla András
Cím:Immunohistochemical localisation of two phosphatidylinositol 4-kinase isoforms, PI4K230 and PI4K92, in the central nervous system of rats / Balla A., Vereb Gy., Gülkan H., Gehrmann T., Gergely P., Heilmeyer L. M. G. Jr., Antal M.
Dátum:2000
ISSN:0014-4819
Megjegyzések:The distribution and cellular localisation of the phosphatidylinositol 4-kinase isoforms, PI4K230 and PI4K92, that are believed to play important roles in the intracellular signalling mechanisms were studied in the rat brain (cortex, cerebellum, hippocampus and spinal cord) using immunocytochemistry with light and electron microscopy. PI4K230 was detected with a specific antibody purified by affinity chromatography from the egg yolk of chicken immunised with a 33-kDa fragment of bovine PI4K230, comprising amino acids 873-1175 of the native protein. PI4K92 was immunostained with a commercially available antibody raised in rabbit against amino acid residues 410-537 of human PI4K92. At the light microscopic level, the immunostaining of PI4K230 and PI4K92 showed a very similar distribution throughout the neurons and appeared as dense punctate labelling in the cytoplasm of perikarya and stem dendrites of various neurons. In addition to neurons, a strongly stained cell population was observed in the molecular layer of the cerebellar cortex that resembled Bergmann glia cells. Electron microscopy of neurons in the ventral horn of the spinal cord showed dense granular immunoprecipitates for both PI4K230 and PI4K92, mostly associated with the outer membrane of mitochondria and membranes of the rough endoplasmic reticulum. In addition, immunostaining of PI4K92 was also frequently found on the outer surface of cisterns and vesicles of Golgi complexes, whereas PI4K230 immunoreactivity was colocalised with some multivesicular bodies. Neither nuclear localisation nor a regular attachment to the cell membrane of these enzymes were observed. Our findings indicate that PI4K230 and PI4K92 are not involved directly in the ligand-stimulated turnover of phosphoinositides at the plasma membrane of neurons. However, they may provide regulatory phosphoinositides for intracellular vesicular traffic being associated with various organelles.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Experimental Brain Research. - 134 : 3 (2000), p. 279-288. -
További szerzők:Vereb György (1938-) (biokémikus, sejtbiológus) Gülkan, Hülya Gehrmann, Thor Gergely Pál (1947-) (biokémikus) Heilmeyer, Ludwig M. G. Jr. Antal Miklós (1951-) (orvos, anatómus)
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7.

001-es BibID:BIBFORM029350
Első szerző:Birinyi András (anatómus, neurobiológus)
Cím:Location of dye-coupled second order and of efferent vestibular neurons labeled from individual semicircular canal or otolith organs in the frog / Birinyi A., Straka H., Matesz K., Dieringer N.
Dátum:2001
Megjegyzések:Vestibular nerve branches innervating the sensory epithelia of the three semicircular canals or of the three otolith organs of frogs were selectively labeled in-vitro with biocytin. Labeled afferent fibers from the semicircular canals, utricle, and lagena were encountered in each of the four vestibular nuclei and their projections overlapped considerably. Saccular afferent fibers projected to the dorsal (acoustic) nuclei and smaller projections to the vestibular nuclei were regionally restricted. Per semicircular canal or otolith organ about equal numbers (11-14) of medium sized vestibular neurons (between 7.5 and 17 microm in diameter) were dye-coupled to afferent fibers. Most of these dye-coupled vestibular neurons were located in the lateral and descending vestibular nuclei between the VIIIth and IXth nerves. The superior vestibular nucleus was relatively free of dye-coupled vestibular neurons. The location of this subpopulation of central vestibular neurons supports the notion that these neurons are part of a particular vestibulospinal pathway. In addition, from each of the canal and/or otolith organs about 3-4 efferent vestibular neurons were labeled retrogradely. These neurons (between 15 and 26 microm in diameter) were located ventral to the vestibular nuclear complex. The branching of efferent vestibular neurons was shown by the presence of neurons that were double labeled by two different fluorescent dyes applied in the same experiment to the anterior and posterior ramus of the same VIIIth nerve, respectively. The branching of these efferent neuron axons explained the presence of collaterals and terminals in the sensory epithelia of a number of untreated ipsilateral endorgans.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Brain Research. - 921 : 1-2 (2001), p. 44-39. -
További szerzők:Straka, Hans Matesz Klára (1949-) (anatómus, neurobiológus) Dieringer, Norbert
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8.

001-es BibID:BIBFORM008791
Első szerző:Deák Ádám (állatorvos)
Cím:Vestibular afferents to the motoneurons of glossopharyngeal and vagus nerves in the frog, Rana esculenta / Ádám Deák, Tímea Bácskai, Gábor Veress, Clara Matesz
Dátum:2009
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Brain Research. - 1286 (2009), p. 60-65. -
További szerzők:Bácskai Tímea (1974-) (biológus, neurobiológus) Veress Gábor (1971-) (neurobiológus) Matesz Klára (1949-) (anatómus, neurobiológus)
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9.

001-es BibID:BIBFORM029353
Első szerző:Halasi Gábor (neurobiológus)
Cím:Connections of the superior vestibular nucleus with the oculomotor and red nuclei in the rat : an electron microscopic study / Halasi Gábor, Bácskai Timea, Matesz Klára
Dátum:2005
ISSN:0361-9230
Megjegyzések:Phaseolus vulgaris leucoagglutinin (PHA-L) was injected into the individual vestibular nuclei of the rat to study their efferent connections. One of the major differences between the connections of these nuclei was found at the level of the mesencephalon: the eye-moving cranial nerve nuclei received the densest projection from the superior vestibular nucleus (SVN). In the present electron microscopic study, we have found that terminals of SVN origin established symmetric synaptic contacts in the oculomotor nucleus. More than two-thirds of PHA-L-labeled boutons terminated on dendrites, the rest of them established axosomatic contacts. Most of the labeled terminals were GABA-positive, supporting the results of previous physiological experiments, which showed inhibitory effects. In the mesencephalon, the other termination area was found in the red nucleus. The PHA-L-labeled boutons of SVN origin were in close contact with the perikarya and proximal dendrites of the magnocellular part of the red nucleus. The types of synaptic contacts and distribution of terminals of SVN origin were similar to those found in the oculomotor nucleus. Our results indicate that the SVN can modify the activity of the cerebellorubral and corticorubral pathways, exerting inhibitory action on the neurons of the red nucleus.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Brain Research Bulletin. - 66 : 4-6 (2005), p. 532-535. -
További szerzők:Bácskai Tímea (1974-) (biológus, neurobiológus) Matesz Klára (1949-) (anatómus, neurobiológus)
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10.

001-es BibID:BIBFORM048875
035-os BibID:PMID:24076270
Első szerző:Kecskés Szilvia (anatómus, neurobiológus)
Cím:Termination of trigeminal primary afferents on glossopharyngeal-vagal motoneurons : possible neural networks underlying the swallowing phase and visceromotor responses of prey-catching behavior / Szilvia Kecskes, Clara Matesz, András Birinyi
Dátum:2013
ISSN:0361-9230
Megjegyzések:Prey-catching behavior (PCB) of the frog consists of a sequence of coordinated activity of muscles which is modified by various sensory signals. The aim of the present study was, for the first time, to examine the involvement of the trigeminal afferents in the swallowing phase of PCB. Experiments were performed on Rana esculenta, where the trigeminal and glossopharyngeal (IX)-vagus (X) nerves were labeled simultaneously with different fluorescent dyes. Using confocal laser scanning microscope, close appositions were detected between the trigeminal afferent fibers and somatodendritic components of the IX-X motoneurons of the ambiguus nucleus (NA). Neurolucida reconstruction revealed spatial distribution of the trigeminal afferents in the functionally different parts of the NA. Thus, the visceromotor neurons supplying the stomach, the heart and the lung received about two third of the trigeminal contacts followed by the pharyngomotor and then by the laryngomotor neurons. On the other hand, individual motoneurons responsible for innervation of the viscera received less trigeminal terminals than the neurons supplying the muscles of the pharynx. The results suggest that the direct contacts between the trigeminal afferents and IX-X motoneurons presented here may be one of the morphological substrate of a very quick response during the swallowing phase of PCB. Combination of direct and indirect trigeminal inputs may contribute to optimize the ongoing motor execution.
Tárgyszavak:Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban
Nucleus ambiguus
Brainstem
Neuronal labeling
Neurolucida reconstruction
Megjelenés:Brain Research Bulletin. - 99C (2013), p. 109-116. -
További szerzők:Matesz Klára (1949-) (anatómus, neurobiológus) Birinyi András (1960-) (anatómus, neurobiológus)
Pályázati támogatás:K-67641
OTKA
MTA-TKI-11008
Egyéb
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11.

001-es BibID:BIBFORM029797
Első szerző:Matesz Klára (anatómus, neurobiológus)
Cím:Development of the abducens nuclei in the Xenopus laevis / Clara Matesz
Dátum:1990
Megjegyzések:The development of the oculomotor and trochlear nuclei (nIII and nIV) was studied with the horseradish peroxidase (HRP) and the cobalt labelling techniques in Xenopus laevis tadpoles. The earliest labelling of the oculomotor neuroblasts was observed at stage 32. The ipsi- and contralateral nuclei were found in two distinct groups on either side of the brainstem and the oculomotor commissure formed by crossing axons was present at this early stage. The fusion of the two nuclei began at the late larval stage when the axonal outgrowth had been presumably completed. The trochlear neuroblasts could be first labelled at stage 39 when the position of the nucleus and axonal pathway was similar to the adult form.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Developmental Brain Research. - 51 (1990), p. 179-184. -
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12.

001-es BibID:BIBFORM029514
Első szerző:Matesz Klára (anatómus, neurobiológus)
Cím:Efferent connections of the vestibular nuclei in the rat : a comparative neuromorphological study / Matesz K., Bácskai T., Nagy É., Halasi G., Kulik Á.
Dátum:2002
ISSN:0361-9230
Megjegyzések:The efferent connections of the superior, medial, lateral, and descending vestibular nuclei were studied with anterograde tracing methods in rats. The following areas of termination could be discerned: (1) In the diencephalon, labeled terminals were detected in the thalamus. (2) In the mesencephalon, the red nucleus and motor nuclei involved in eye movements were richly supplied by the vestibular nuclei. (3) In the rhombencephalon, extensive intrinsic connections of all vestibular nuclei were demonstrated. Strong commissural connections were found among the medial, superior, and descending vestibular nuclei. The inferior olive received labeled fibers exclusively from the lateral vestibular nuclei. Individual differences were demonstrated in the termination areas in the reticular formation. (4) In the spinal cord, most of the descending vestibular fibers were found in the ipsilateral anterior funiculus.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Brain Research Bulletin. - 57 : 3-4 (2002), p. 313-315. -
További szerzők:Bácskai Tímea (1974-) (biológus, neurobiológus) Nagy É. Halasi Gábor (1976-) (neurobiológus) Kulik Ákos
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