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1.

001-es BibID:BIBFORM029955
Első szerző:Bácskai Tímea (biológus, neurobiológus)
Cím:Ascending and descending projections of the lateral vestibular nucleus in the rat / Tímea Bácskai, G. Székely, Clara Matesz
Dátum:2002
ISSN:0236-5383
Megjegyzések:The tracer neurobiotin was injected into the lateral vestibular nucleus in rat and the efferent fiber connections of the nucleus were studied. The labeled fibers reached the diencephalon rostrally and the sacral segments of the spinal cord caudally. In the diencephalon, the ventral posteromedial and the gustatory nuclei received the most numerous labeled fibers. In the mesencephalon, the inferior colliculus, the interstitial nucleus of Cajal, the nucleus of Darkschewitch, the periaqueductal gray matter and the red nucleus received large numbers of labeled fibers. In the rhombencephalon, commissural and internuclear connections originated from the lateral vestibular nucleus to all other vestibular nuclei. The medioventral (motor) part of the reticular formation was richly supplied, whereas fewer fibers were seen in the lateral (vegetative) part. In the spinal cord, the descending fibers were densely packed in the anterior funiculus and in the ventral part of the lateral funiculus. Collaterals invaded the entire gray matter from lamina IX up to lamina III; the fibers and terminals were most numerous in laminae VII and VIII. Collateral projections were rich in the cervical and lumbosacral segments, whereas they were relatively poor in the thoracic segments of the spinal cord. It was concluded that the fiber projection in the rostral direction was primarily aimed at sensory-motor centers; in the rhombencephalon and spinal cord, fibers projected onto structures subserving various motor functions.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Acta Biologica Hungarica. - 53 : 1-2 (2002), p. 7-21. -
További szerzők:Székely György (1926-2017) (neurobiológus) Matesz Klára (1949-) (anatómus, neurobiológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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2.

001-es BibID:BIBFORM029726
Első szerző:Kulik Ákos
Cím:Sub-population of capsaicin sensitive primary afferent neurons in thoracic, lumbar and sacral dorsal root ganglion in young rats revealed by stimulated cobalt uptake / Kulik A., Polgár E., Matesz K., Kothalawala S., Szűcs P., Nagy I.
Dátum:1996
ISSN:0236-5383
Megjegyzések:The number of dorsal root ganglion (DRG) neurons, the relative number of capsaicin sensitive DRG cells and the diameter distribution of these neurons were investigated in the thoracic 11, lumbar 5 and sacral 1 DRG ganglia in young rats. The capsaicin sensitivity of DRG cells was shown by the stimulated cobalt uptake technique in in vitro conditions. Cobalt labelled and non-labelled neurons were counted using the dissector method. Our results show that the total number of DRG cells in the Th11, L5 and S1 segments (4200-6500 per ganglion) were not significantly different from each other and about 8% of these cells were capsaicin sensitive in the segments studied. These findings also show that the capsaicin sensitive DRG cells belong to the small diameter DRG cell population. Control experiments on neonatally capsaicin injected animals indicate that the capsaicin stimulated cobalt uptake provides selective and specific staining of capsaicin sensitive DRG neurons.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
Megjelenés:Acta Biologica Hungarica. - 47 : 1-4 (1996), p. 251-259. -
További szerzők:Polgár E. Matesz Klára (1949-) (anatómus, neurobiológus) Kothalawala, D. S. Szűcs Péter (1974-) (kutatóorvos) Nagy I. (orvos)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM029724
Első szerző:Kulik Ákos
Cím:Mesencephalic projections of the cochlear nucleus in the frog, Rana esculenta / Kulik A., Matesz C., Székely G.
Dátum:1994
ISSN:0236-5383
Megjegyzések:The lectin Phaseolus vulgaris leucoagglutinin was injected into chochlear nucleus in order to study the trajectory and projections of the auditory pathway in the frog. A strong contralateral and a weak ipsilateral fiber bundle representing the lemniscus lateralis could be followed to the torus semicircularis. The following areas of termination could be discerned in the mesencephalon: (1) Each of the five subnuclei of the torus semicircularis received fibers from the cochlear nucleus, the largest number of fibers terminated in the principal nucleus. (2) Nuclei of the mesencephalic tegmentum were supplied by fibers from the cochlear nucleus on both sides. (3) The nucleus isthmi was innervated by a few small caliber fibers, and (4) the nucleus visceralis secundarius was richly supplied by large caliber fibers. Two ill-defined neuron groups in the mesencephalic tegmentum, the nucleus reticularis isthmi (5) and (6) the nucleus profundus mesencaphali were conspicuously outlined by the terminals of auditory fibers. Their positions suggested homology to the mammalian nucleus of the lemniscus lateralis. (7) A few fibers and boutons were labelled in the fifth and sixth layers of the optic tectum. Retrogradely labelled cells were found in the nucleus laminaris of the torus semicircularis and in the nuclei of mesencephalic tegmentum. Our results indicate that the frog auditory pathway is more complex at the level of the secondary fiber projections than has been previously recognized. The retrogradely labelled neurons suggest a descending control of the cochlear nucleus from higher structures of the auditory pathway.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
Megjelenés:Acta Biologica Hungarica. - 45 : 2-4 (1994), p. 323-335. -
További szerzők:Matesz Klára (1949-) (anatómus, neurobiológus) Székely György (1926-2017) (neurobiológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM030059
Első szerző:Matesz Klára (anatómus, neurobiológus)
Cím:Connections of the torus semicircularis and oliva superior in the frog, Rana esculenta : a Phaseolus vulgaris leucoagglutinin labeling study / Clara Matesz, Á. Kulik
Dátum:1996
ISSN:0236-5383
Megjegyzések:The afferent and efferent connections of the frog principal nucleus (TP) of torus semicircularis (TOS) and superior olive (SO) were examined by employing the anterograde and retrograde transport patterns of Phaseolus vulgaris leucoagglutinin (PHA-L). After injecting the tracer into these nuclei it was found that the TP projected to the ipsilateral posterior and central thalamic nuclei, all subdivisions of the bilateral TDS and the ipsilateral nucleus isthmi (NI). In the rhombencephalon the projection was restricted mainly to the contralateral SO and the cochlear nucleus (CN). Retrogradely labeled cells were found in most of the areas that contained anterogradely labeled terminals. The termination areas of the SO fibers were similar to the projections of fibers of TP origin in the diencephalic and in the mesencephalic auditory centers. A strong projection was followed into the contralateral SO; the CNs received fibers at both sides. Caudally to the SO the reticular formation, the spinal nucleus of the trigeminal nerve, the solitary nucleus and the dorsal column nuclei were supplied by the fibers of the SO origin. Retrogradely labeled cells were found in the TOS, tegmental nuclei, solitary nucleus, dorsal column nuclei and in the spinal nucleus of the trigeminal nerve. Our results indicate that the frog auditory pathway is more complex at the level of the secondary and tertiary fiber projections than has been previously recognized.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Acta Biologica Hungarica. - 47 (1996), p. 287-301. -
További szerzők:Kulik Ákos
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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5.

001-es BibID:BIBFORM029802
Első szerző:Matesz Klára (anatómus, neurobiológus)
Cím:The motor nuclei of the glossopharyngeal-vagal and the accessorius nerves in the rat / Clara Matesz, G. Székely
Dátum:1983
ISSN:0236-5383
Megjegyzések:Retrograde cobalt labeling was performed by incubating the rootlets of cranial nerves IX, X and XI, or the central stumps of the same nerves, in a cobaltic lysine complex solution, and the distribution of efferent neurons sending their axons into these nerves was investigated in serial sections of the medulla and the cervical spinal cord in young rats. The following neuron groups were identified. The inferior salivatory nucleus lies in the dorsal part of the tegmentum at the rostral part of facial nucleus. It consists of a group of medium-sized and a group of small neurons. Their axons make a hair-pin loop at the midline and join the glossopharyngeal nerve. The dorsal motor nucleus of the vagus situates in the dorsomedial part of the tegmentum. Its rostral tip coincides with the first appearance of sensory fibres of the glossopharyngeal nerve, the caudal end extends into the pyramidal decussation. The constituting cells have globular or fusiform perikarya and they are the smallest known efferent neurons. The ambiguous nucleus is in the ventrolateral part of the tegmentum. The rostral tip lies dorsal to the facial nucleus, and the caudal tip extends to the level of the pyramidal decussation. The rostral one third of the ambiguous nucleus is composed of tightly-packed medium sized neurons, while larger neurons are arranged more diffusely in the caudal two thirds. The long dendrites are predominantly oriented in the dorsoventral direction. The dorsally-oriented axons take a ventral bend anywhere between the ambiguous nucleus and dorsal motor nucleus of the vagus. The motoneurons of the accessorius nerve are arranged in a medial, a lateral and a weak ventral cell column. The medial column begins at the caudal aspect of the pyramidal decussation and terminates in C2 spinal cord segment. The lateral and ventral columns begin in C2 segment and extend into C6 segment. The neurons have large polygonal perikarya and characteristic cross-shaped dendritic arborizations. The axons follow a dorsally-arched pathway between the ventral and dorsal horns. The accessorius motoneurons have no positional relation to any of the vagal efferent neurons. It is concluded that the topography and neuronal morphology of accessorius motoneurons do not warrant the designation of a bulbar accessorius nucleus and a bulbar accessorius nerve.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Acta Biologica Hungarica. - 34 : 2-3 (1983), p. 215-230. -
További szerzők:Székely György (1926-2017) (neurobiológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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6.

001-es BibID:BIBFORM029796
Első szerző:Matesz Klára (anatómus, neurobiológus)
Cím:Fine structure of the primary afferent vestibulocochlear terminals in the frog / Clara Matesz
Dátum:1988
ISSN:0236-5383
Megjegyzések:The synaptology of the primary afferent vestibulocochlear fibers of the frog's nucleus vestibularis lateralis (NVL), nucleus cochlearis dorsalis (NCD) and nucleus saccularis (NS) was studied with the aid of cobalt labeling technique. On the basis of their sizes and morphological characters, two types of boutons could be distinguished. The type one large boutons making only axosomatic contacts were found in the NVL and NS. The form of contact in these boutons was mainly attachment plaque without vesicle accumulation in the contact zone. The second type of bouton having a smaller diameter and spheric vesicles, were engaged both in axosomatic and axodendritic synapses in all three nuclei studied. There was about the same number of axosomatic and axodendritic boutons in the NCD and NS; while the numerical distribution of type one and type two axosomatic boutons was similar in the NVL and NS. On the basis of our results it is suggested that the NS may be a transitory form between the NVL and NCD.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Acta Biologica Hungarica. - 39 : 2-3 (1988), p. 267-277. -
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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7.

001-es BibID:BIBFORM029795
Első szerző:Matesz Klára (anatómus, neurobiológus)
Cím:Termination areas of primary afferent fibers of the trigeminal nerve in the rat / Clara Matesz
Dátum:1983
Megjegyzések:The cobalt-labelling technique was used to investigate the termination areas of trigeminal primary afferent fibers. The familiar somatotopic arrangement of fibers and terminals of the three divisions of the trigeminal nerve was recognized both in the spinal tract and in the nuclear complex of the trigeminus. The spinal tract could be traced as far as the 3rd cervical segment of the spinal cord where fibers crossed to the contralateral side. The different divisions of the nuclear complex could be unambiguously defined on the basis of the pattern of fiber terminations. The nucleus principalis was characterized by the even distribution of terminals in the nucleus. The nucleus spinalis was characterized by small bundles of fibers of intranuclear origin, which broke up the even distribution pattern of terminals. The presence of mesencephalic trigeminal fibers in the nucleus oralis distinguished this nucleus from the nucleus interpolaris. The nucleus caudalis was recognized on the ground of its striated structure. Primary trigeminal afferent fibers were located in the following sites: in the solitary nucleus, in the lateral part of the reticular formation, in the dorsal-column nuclei and in the superior vestibular nuclei. Primary fiber terminations could not be observed in the cerebellum.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Acta biologica Hungarica. - 34 : 1 (1983), p. 31-43. -
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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