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Nucleoli of naked megakaryocytic nuclei
Janoutová, J.; Likovský, Zbyněk
2001 - anglický
The differentiation and maturation of megakaryocytes is characterized by endomitotic divisions which result in the formation of large polyploid cells the cytoplasm of which is segregated as thrombocytes. The present study was undertaken to provide more information on the incidence of nucleoli in naked magakaryocytic nuclei representing terminal stages of the megakaryocytic development after the loss of the cytoplasm transformed to thrombocytes.
Klíčová slova:
nucleoli; megakaryocytes
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
Nucleoli of naked megakaryocytic nuclei
The differentiation and maturation of megakaryocytes is characterized by endomitotic divisions which result in the formation of large polyploid cells the cytoplasm of which is segregated as ...
Morphology and distribution of nadph-diaphorase-positive neurons in the auditory cortex of the rat
Nwabueze-Ogbo, Fidel Chijoke; Druga, R.; Syka, Josef
2001 - anglický
Our results indicate the preferred localization of the NADPH-d/NOS positive neurons in the infragranular layers, which are sources of the majority of corticofugal neurons projecting to the subcortical structures.
Klíčová slova:
nadph-diaphorase-positive
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
Morphology and distribution of nadph-diaphorase-positive neurons in the auditory cortex of the rat
Our results indicate the preferred localization of the NADPH-d/NOS positive neurons in the infragranular layers, which are sources of the majority of corticofugal neurons projecting to the subcortical ...
Functional characteristics of neurons in the auditory thalamus
Kvašňák, Eugen; Šuta, Daniel; Popelář, Jiří; Syka, Josef
2001 - anglický
The MGB, is similarly as the inferior colliculus (IC) is organized into three subdivisions, with the ventral MGB characterized by the quickest onset reaction with the lowest thresholds to auditory stimulation and with the same ratio of monotonic and non-monotonic RLFs.
Klíčová slova:
auditory thalamus
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
Functional characteristics of neurons in the auditory thalamus
The MGB, is similarly as the inferior colliculus (IC) is organized into three subdivisions, with the ventral MGB characterized by the quickest onset reaction with the lowest thresholds to auditory ...
A behavioral and electrophysiological study of the effects of noise exposure on auditory function in rat
Rybalko, Natalia; Mazelová, Jana; Syka, Josef
2001 - anglický
The values of the gap detection threshold doubled after exposure to 110 dB SPL and quadrupled after exposure to 115-120 dB SPL. GDT recovered to the original values during 1-2 weeks. Increased gap detection thresholds after noise exposure appear connected with elevated hearing thresholds, the deterioration in the performance of some animals in behavioral rasts after strong intensity noise (120 dB SPL) may signal the occurrence of tinnitus in these animals.
Klíčová slova:
auditory system
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
A behavioral and electrophysiological study of the effects of noise exposure on auditory function in rat
The values of the gap detection threshold doubled after exposure to 110 dB SPL and quadrupled after exposure to 115-120 dB SPL. GDT recovered to the original values during 1-2 weeks. Increased gap ...
Neuron-glia communication by extrasynaptic transmission
Syková, Eva
2001 - anglický
Dynamic changes in ECS ionic composition, volume and geometry accompany neuronal activity, neuronal loss, glial development and proliferation, aging, CNS injury, anoxia/ischemia, spreading depression, tumors, inflammation dyemyelination and many other brain pathological states.
Klíčová slova:
neuronal activity
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
Neuron-glia communication by extrasynaptic transmission
Dynamic changes in ECS ionic composition, volume and geometry accompany neuronal activity, neuronal loss, glial development and proliferation, aging, CNS injury, anoxia/ischemia, spreading depression, ...
Up-regulation of delayed outwardly rectifying potassium currents in reactive astrocytes after certical stab wound
Anděrová, Miroslava; Neprašová, H.; Petřík, D.; Chvátal, Alexandr; Syková, Eva
2001 - anglický
Hypertrophied astrocytes in the close vicinity of the stab wound are characterized by an up-regulation of delayed outwardly rectifying K+ currents and increased K+ accumulation in the vicinity of the astrocyte membrane.
Klíčová slova:
astrocytes
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
Up-regulation of delayed outwardly rectifying potassium currents in reactive astrocytes after certical stab wound
Hypertrophied astrocytes in the close vicinity of the stab wound are characterized by an up-regulation of delayed outwardly rectifying K+ currents and increased K+ accumulation in the vicinity of the ...
Suppression of 2f1-f2 distortion product otoacoustic emissions by electrical stimulation of the inferior colliculus in guinea pigs
Popelář, Jiří; Mazelová, Jana; Syka, Josef
2001 - anglický
Electrical stimulation of certain parts of the IC resulted in the depression of the DPOAE amplitude by 0.1-2 dB. The value of maximal DPOAE suppression was similar to the DPOAE suppression produced by acoustical stimulation of the contralateral ear. Our results indicate that electrical stimulation of the external cortex of the IC can activate the efferent system and produce DPOAE suppression by similar mechanisms as does acoustical stimulation of the contralateral ear.
Klíčová slova:
guinea pigs
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
Suppression of 2f1-f2 distortion product otoacoustic emissions by electrical stimulation of the inferior colliculus in guinea pigs
Electrical stimulation of certain parts of the IC resulted in the depression of the DPOAE amplitude by 0.1-2 dB. The value of maximal DPOAE suppression was similar to the DPOAE suppression produced by ...
Biocompatible polymer hydrogels usable for nervous tissue regeneration
Lesný, Petr; DeCroos, Jane; Přádný, Martin; Vacík, Jiří; Syková, Eva
2001 - anglický
PHPMA hydrogel matrices have the ability to induce tissue formation within them and therefore support the regeneration of nervous tissue.
Klíčová slova:
hydrogels
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
Biocompatible polymer hydrogels usable for nervous tissue regeneration
PHPMA hydrogel matrices have the ability to induce tissue formation within them and therefore support the regeneration of nervous tissue.
Abnormal skeletogenesis occurs in the Splotch (Sp2H) Mutant
Lišková, J.; Růžičková, Kateřina; Buckiová, Daniela
2001 - anglický
Homozygous Splotch embryos (days 16.5-18.5 of gestation)displayed severe rib and neural arches abnormalities. (100% penetrance).
Klíčová slova:
pax 3; skeletal; defects
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
Abnormal skeletogenesis occurs in the Splotch (Sp2H) Mutant
Homozygous Splotch embryos (days 16.5-18.5 of gestation)displayed severe rib and neural arches abnormalities. (100% penetrance).
Development of right-left asymmetry in the chick embryo
Buckiová, Daniela; Kofroňová, Olga; Jelínek, R.
2001 - anglický
Using SEM we have studied the ventral surface of the chick node. In contrast to mouse, we have found neither the pit nor the cilia.
Klíčová slova:
cilia; node; chick
Plné texty jsou dostupné na jednotlivých ústavech Akademie věd ČR.
Development of right-left asymmetry in the chick embryo
Using SEM we have studied the ventral surface of the chick node. In contrast to mouse, we have found neither the pit nor the cilia.
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