Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 6

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  epileptic seizure
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Prophylaxis of alcohol provoked epileptic seizures

100%
Blaszczyk A.
Polish Journal of Environmental Studies
|
2004
|
tom 13
|
nr Suppl.2, Part 1
2
Content available remote

Hypoglossal and phrenic nerve responses to changes in oxygen tension during picrotoxin-induced seizures in the rat

84%
Budzinska K.
Journal of Physiology and Pharmacology. Supplement
|
2004
|
tom 55
|
nr 3
31-39
The aim of this study was to examine the response of phrenic and hypoglossal motor outputs to hyperoxia and 11% hypoxia during picrotoxin-induced seizures. Adult rats were anesthetized with a mixture of urethane with alpha-chloralose. The animals were bilaterally vagotomized, paralyzed, and artificially ventilated. Picrotoxin was administered intravenously in a cumulative dose until seizures occurred. The response to changes in oxygen tension was studied after the convulsive dose of picrotoxin and compared with the baseline level. The results show that the picrotoxin-induced seizures evoked a complex respiratory response that consisted of an augmentation of phrenic and hypoglossal nerve activities and irregular disturbances in phasic respiratory discharges. The excitation of the hypoglossal activity appeared earlier and showed a more irregular pattern than that of the phrenic activity. Hyperoxia elicited a similar decrease in neural respiratory outputs during the control and seizure conditions, suggesting the unaltered peripheral chemoreceptor mechanism. In the pre-seizure condition, hypoxia caused an initial excitation of the phrenic and hypoglossal outputs followed by some decline of the effect. During seizures, the striking effect of hypoxia was a decrease of the respiratory rate. A biphasic response to hypoxia was maintained in the hypoglossal activity due to stimulation of the hypoglossal amplitude. In contrast, in the phrenic activity the excitatory phase of hypoxia was absent and depression ensued. The mechanism underlying the facilitation of hypoxic respiratory depression during seizures is discussed.
3

The effects of ketogenic and calorie restricted diets on epileptic seizure in rats with mechanical brain injury

84%
Osoba J., Setkowicz-Janeczko Z., Gzielo-Jurek K., Kielbinski M.
Acta Neurobiologiae Experimentalis
|
2013
|
tom 73
|
nr 1
Traumatic brain injury (TBI) is a major cause of mortality and morbidity in children and young adults. It initiates multiple cascades of events that lead to acute metabolic dysfunction and cellular energy crisis. TBI remains one of the most common and important causes of acquired epilepsy nowadays. The ketogenic diet (KD) is a specialized high-fat low-protein and low-carbohydrate diet which mimics the anticonvulsive effects of fasting, which were known to suppress seizures. KD is used primarily in children with seizures refractory to standard anticonvulsive drugs (AEDs). Many studies on the anticonvulsant effects of a KD have been performed. Unfortunately, the mechanism of action of the ketogenic diet remains unclear. Although the ketogenic diet is the best dietary therapy for epilepsy, there are other possible approaches including overall restriction of caloric intake. Dietary restriction seems a promising alternative to classic ketogenic diet, possibly because it is associated with higher levels of ketone bodies, which are themselves neuroprotective. Caloric restriction (CR) is defined as a decrease in energy intake without lowering nutritional value. CR improves behavioral outcomes after ischemic brain injury in rats and could possibly act as a neuroprotective factor in global ischemia. It has been also shown that chronic administration of CR may provide protection in the event of TBI. The aim of this research was to study the changes in susceptibility to pilocarpine-induced epileptic seizures in rats with mechanical brain injury. In 30-day-old male Wistar rats (P30), mechanical brain injury was performed. Immediately after, the calorically unrestricted ketogenic diet (KD) and calorically restricted standard laboratory rat chow diet (CR) were introduced. In order to check how the ketogenic diet and caloric restriction alone influence the epileptic seizure susceptibility, two groups of 30-day-old rats were fed KD and CR untill postnatal day 60. At that time, seizures were induced by pilocarpine injection. During the following 6-h period, the animals were continuously observed and motor seizures intensity were rated on a 6-point scale. We have found that KD, both alone or administered to animals with history of experimental brain injury, significantly increases the maximum intensity of pilocarpine-induced seizures, compared to CR fed healthy and injured controls, respectively. Surprisingly, KD and CR seem to have opposite effects in healthy animals as well as animals with a history of experimental brain injury. We have found that KD increases the maximum intensity of pilocarpine-induced seizures, compared to both calorically restricted and unrestricted normal diets. CR, on the other hand, decreases the seizure-genic effect of pilocarpine. This results in a continuum in which calorically restricted animals exhibit the weakest, and KD-fed animals the strongest seizures. To our knowledge, the effects of calorically-restricted and ketogenic diets on pilocarpine-induced seizures have not been previously studied. In other well established models of epilepsy, KD either attenuates or has little effect on seizure intensity.
4

Skóra wchodzi do akcji - lepsze rozwiązania w leczeniu drgawek u kotów

67%
Packer R. A.
Weterynaria po Dyplomie
|
2020
|
tom 21
|
nr 5
5

Gene expression in neuronal apoptosis - looking for a therapeutic window

67%
Figiel I., Filipkowski R. K., Hetman M., Kaminska B., Kaczmarek L.
Biotechnologia
|
1996
|
nr 4
6

Czy stężenie melatoniny ma związek z napadami padaczkowymi u psów?

59%
Packer R. A.
Weterynaria po Dyplomie
|
2019
|
tom 20
|
nr 6
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.