Wyniki wyszukiwania

1

The rhythmic slow activity recorded from entorhinal cortex in freely moving cats

100%

Blaszczyk M., Grabowski R., Eckersdorf B., Golebiewski H., Konopacki J.

Acta Neurobiologiae Experimentalis

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1996

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tom 56

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nr 1

2

The spontaneous theta rhythm recorded from the hypothalamus posterior in the cat in vivo

75%

Grabowski R., Blaszczyk M., Eckersdorf B., Golebiewski H., Konopacki J.

Acta Neurobiologiae Experimentalis

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1996

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tom 56

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nr 1

3

Development of the archipallial and paleopallial structures in the human embryonic brain

75%

Rapalska K., Szwabe M., Czarniawska-Grzesinska M., Wozniak W.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2000

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tom 42

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nr 1

4

Topographic relationship of the amygdaloid body to the hippocampal formation and lateral ventricle - MRI study

75%

Narkiewicz O., Biranowska J., Bobek-Billewicz B., Morys J.

Folia Morphologica

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1999

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tom 58

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nr 3

The relationship of the amygdaloid body to the hippocampal formation and lateral ventricle was studied on MRI slabs of brains of 25 volunteers. Considering the presence of the hippocampal formation and/or uncal sulcus on a cross-section three segments of the amygdaloid body were distinguished in rostro-caudal order: prehippocampal, suprahippocampal anterior (preuncal) and suprahippocampal posterior (uncal), each one presenting characteristic features. The lengths of the amygdaloid body and of its segments were calculated. In each segment the great variability of the topographical relations was found. Especially in the suprahippocampal anterior segment the relation of the lateral ventricle to both, the amygdaloid body and hippocampus shows great differences, even between the right and left side.

5

The influence of acute and chronic open-field exposure on the hippocampal formation: an immunohistochemical study

63%

Badowska-Szalewska E., Klejbor I., Dziewiatkowski J., Spodnik J. H., Morys J.

Folia Morphologica

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2006

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tom 65

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nr 4

343-351

The hippocampus plays a role in new learning, memory and emotion and is a component of the neuroanatomical stress circuit. The structure is involved in terminating hypothalamic-pituitary-adrenocortical (HPA) axis responses to stress and attenuates stress responses by shutting off this axis. The immunoreactivity (-ir) of c-Fos, NGF and its receptor TrkA following acute and chronic open-field stress were studied in CA1-CA3 and the DG of the hippocampus. The material consisted of 21 male adult rats divided into three groups: nonstressed (control) animals and rats exposed to acute (15 min once) and chronic (15 min daily for 21 days) aversive stimulation (open-field exposure). The brains were stained with use of immunohistochemical methods for c-Fos, NGF or TrkA. In the animals exposed to acute open-field stress the number of c-Fos-, TrkAand NGF-ir cells was higher in all the structures studied than in the control animals. However they were differentiated only in c-Fos immunoreactivity. In the rats exposed to chronic open-field stress the number of c-Fos-ir cells in the structures of the hippocampal formation studied was smaller than in rats exposed to acute stress and was comparable to that in the control group. No differences were observed between the groups exposed to acute and chronic stress in the number of TrkA-ir cells in the structures under investigation. The number of NGF-ir neurons in CA1 and CA2 was lower after exposure to chronic than after exposure to acute stress but was still higher than that in the control group. Our findings indicate that neurons of CA1-CA3 and the DG are engaged in the stress response after acute as well as chronic open-field exposure. This is probably related to the important role of the hippocampus in processing new spatial information as well as in the habituation processes, although these appear to have different mechanisms.

6

Histochemical and biochemical studies on the glutamate transmitter metabolism

63%

Wolf G.

Folia Histochemica et Cytobiologica

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1984

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tom 22

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nr 3-4

7

Cholinergic-GABAergic interaction in the production of EEG theta oscillations in rat hippocampal formation in vitro

63%

Golebiewski H., Eckersdorf B., Konopacki J.

Acta Neurobiologiae Experimentalis

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1996

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tom 56

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nr 1

8

In vitro recorded theta-like activity in the limbic cortex: comparison with spontaneous theta and epileptiform discharges

51%

Konopacki J., Golebiewski H., Eckersdorf B., Kowalczyk T., Bocian R.

Acta Neurobiologiae Experimentalis

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2000

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tom 60

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nr 1

The generation of EEG theta rhythm in the mammalian limbic cortex is a prime example of rhythmic activity that involves central mechanisms of oscillations and synchrony. This EEG pattern has been extensively studied since 1938, when Jung and Kornmuller (1938) demonstrated the first theta recordings in the hippocampal formation of rabbits. In 1986 in collaboration with Drs. B.H. Bland, S.H. Roth and B.M. Maclver we demonstrated for the first time that bath perfusion of hippocampal slices with the cholinergic agonist, carbachol, resulted in theta-like oscillations. Since this initial demonstration of in vitro theta-like activity, we have carried out a number of experiments in an attempt to answer the basic question: what are the similarities between cholinergic-induced in vitro theta-like activity and theta rhythm which naturally occurs in the in vivo preparation. Thus far, our studies have provided strong evidence that theta-like activity recorded in vitro shares many of the physiological and pharmacological properties of theta rhythm observed in vivo. The question whether in vitro theta-like oscillations reflect features of epileptiform activity is also adressed in this review.

9

Effects of caffeine on NMDA-evoked 45 Ca2 release in the rat dentate gyrus in vivo

45%

Alaraj M., Kosinska I., Lazarewicz J. W.

Acta Neurobiologiae Experimentalis

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1998

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tom 58

|

nr 4

10

Development of oscillatory activity in the limbic cortex in vitro

45%

Konopacki J.

Acta Neurobiologiae Experimentalis

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1996

|

tom 56

|

nr 1

Ograniczanie wyników

The rhythmic slow activity recorded from entorhinal cortex in freely moving cats

The spontaneous theta rhythm recorded from the hypothalamus posterior in the cat in vivo

Development of the archipallial and paleopallial structures in the human embryonic brain

Topographic relationship of the amygdaloid body to the hippocampal formation and lateral ventricle - MRI study

The influence of acute and chronic open-field exposure on the hippocampal formation: an immunohistochemical study

Histochemical and biochemical studies on the glutamate transmitter metabolism

Cholinergic-GABAergic interaction in the production of EEG theta oscillations in rat hippocampal formation in vitro

In vitro recorded theta-like activity in the limbic cortex: comparison with spontaneous theta and epileptiform discharges

Effects of caffeine on NMDA-evoked 45 Ca2 release in the rat dentate gyrus in vivo

Development of oscillatory activity in the limbic cortex in vitro