CCL

Összesen 5 találat.
#/oldal:
Részletezés:
Rendezés:

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)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
Borító:

2.

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)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
DOI
Borító:

3.

001-es BibID:BIBFORM029083
Első szerző:Polgár Erika
Cím:The colocalization of parvalbumin and calbindin-D28k with GABA in the subnucleus caudalis of the rat spinal trigeminal nucleus / E. Polgár, M. Antal
Dátum:1995
ISSN:0014-4819
Megjegyzések:The colocalization of two calcium-binding proteins, parvalbumin (PV) and calbindin-D28k (CaB), which have been reported to be markers of specific subpopulations of neurons in the central nervous system, with the inhibitory amino acid neurotransmitter gamma-amino-butyric acid (GABA) was investigated in neurons of laminae I-IV of the subnucleus caudalis of the rat spinal trigeminal nucleus by using post-embedding immunocytochemical methods. Cells immunoreactive for PV, CaB, and GABA were found in all four laminae of the subnucleus caudalis. A substantial proportion of PV-immunoreactive perikarya were also stained for GABA in laminae II and III (44.8% and 39.8%, respectively). However, the majority of PV-containing neurons in laminae I and IV (100% and 86%, respectively), as well as CaB-immunoreactive cells in all four laminae (98.4%), were GABA-negative. These results show that, in contrast to higher brain centers, PV-, CaB-, and GABA-immunoreactive perikarya represent significantly different populations of neurons in the subnucleus caudalis of the rat. In the light of the present findings, the differences in the neurochemical properties of the subnucleus caudalis of the spinal trigeminal nucleus and the spinal dorsal horn are also discussed.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Experimental Brain Research. - 103 : 3 (1995), p. 402-408. -
További szerzők:Antal Miklós (1951-) (orvos, anatómus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
DOI
Borító:

4.

001-es BibID:BIBFORM029804
Első szerző:Székely György (neurobiológus)
Cím:Primary afferent terminals in the nucleus of the solitary tract of the frog : an electron microscopic study / G. Székely, G. Lévai, K. Matesz
Dátum:1983
Megjegyzések:In the frog solitarius nucleus, primary afferent terminals of the facial and glossopharyngeal-vagal nerves were identified with cobalt labelling and electron microscopy. The labelled terminals were grouped in two main categories, one with small (1-2 micron) and pale terminals, and another with large (3-5 micron) and dark terminals. The small terminals greatly outnumbered the large ones. In addition many terminals intermediate in size and staining reactions were found. All kinds of labelled boutons contained medium-size clear synaptic vesicles, among which dense-core vesicles of the smaller type frequently occurred. The labelled primary afferent terminals established axo-dendritic contacts of the asymmetric type. Close to these contact sites they were themselves very frequently contacted by a profile interpreted as presynaptic in relation to them. Such profiles contained spherical, pleomorphic (including dense-core) or flattened vesicles; a fourth kind was interpreted as presynaptic dendrites. It is concluded that viscerosensory fibres, as opposed to somatosensory fibres, predominantly generate small and lightly stained terminals. It is likely that the effect of synaptic transmission at the solitarius tract terminals is modulated in a very versatile manner by the various presynaptic profiles converging on these terminals.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Experimantal Brain Research. - 53 : 1 (1983), p. 109-117. -
További szerzők:Lévai G. Matesz Klára (1949-) (anatómus, neurobiológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
Borító:

5.

001-es BibID:BIBFORM028806
Első szerző:Székely György (neurobiológus)
Cím:The termination of cutaneous nerves in the dorsal horn of the spinal cord in normal and in skin-rotated frogs / Székely G., Matesz K., Baker R. E., Antal M.
Dátum:1982
Megjegyzések:Following transganglionic transport of cobaltic lysine applied to the cut end of cutaneous nerves, the central terminal arbours were filled to such an extent that it was possible to visualize the dermatomal projection upon the dorsal horn in unoperated and in skin-rotated frogs. Sensory nerves of the trunk skin terminate in an oval-shaped area which probably corresponds to laminae 1-3 (or 1-4) in the mammalian spinal cord. One type of terminating collateral had a restricted terminal field either in the medial, or in the lateral, part of the oval-shaped area. Another type ended with a large terminal arbour covering almost the total extent of the oval shaped area. These terminal arbours were found for both the dorsal and the ventral cutaneous nerves. Dorsal cutaneous nerves projected preferentially to the lateral part, while ventral cutaneous nerves projected to the medial part, but both nerves sent a significant contingent of collaterals to the whole extent of the oval-shaped area. A rearrangement of the central projection patterns of the dorsal cutaneous nerves, consistently mediating misdirected responses, was not observed in skin-rotated frogs. Collaterals of trunk skin nerves terminated exclusively in the thoracic segments; they did not enter the limb-innervating (brachial and lumbosacral) segments of the spinal cord. The results corroborate the crossed pattern of sensory input in the dermatomal projection. The large, extensively overlapping, areas of termination of individual skin nerves suggest that wiping responses mediated by these nerves should be regarded as complex behaviour released from a preprogrammed centre rather than a reflex arc in which the presence specificity would be determined by wiring specificity.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Experimental Brain Research. - 45 : 1-2 (1982), p. 19-28. -
További szerzők:Matesz Klára (1949-) (anatómus, neurobiológus) Baker, R. E. Antal Miklós (1951-) (orvos, anatómus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Rekordok letöltése1 
Corvina könyvtári katalógus v8.2.27 © 2023 Monguz kft. Minden jog fenntartva.