Physical training does not influence interictal LCMRglu in pilocarpine-treated rats with epilepsy.

This study evaluated, using local cerebral metabolic rates for glucose (LCMRglu) in 39 brain regions, whether physical training modifies the functional activity in rats with epilepsy. Most animals present seizures at rest rather than during exercise and LCMRglu was measured during the interictal phase of the chronic period of a pilocarpine model of epilepsy by the [14C]2-deoxyglucose (2DG) method. Wistar rats were allocated randomly into four groups: control rats (n=6), rats with epilepsy (n=6), trained control rats (n=6), and trained rats with epilepsy (n=6).

Amygdala kindling in Proechimys guyannensis rat: an animal model of resistance to epilepsy.

Purpose: This study examined the effect of amygdala kindling development in Proechimys guayannensis rat, a common rodent of the Amazon basin.

Methods: Adult male P. guayannensis animals (n = 43) and adult male Wistar rats (n = 14) were submitted to electrical amygdala kindling.

The contribution of the lateral posterior and anteroventral thalamic nuclei on spontaneous recurrent seizures in the pilocarpine model of epilepsy.

The pilocarpine model of epilepsy in rats is characterised by the occurrence of spontaneous seizures (SRSs) during the chronic period that recur 2-3 times per week during the whole animal life. In a previous study on brain metabolism during the chronic period of the pilocarpine model it was possible to observe that, among several brain structures, the lateral posterior thalamic nuclei (LP) showed a strikingly increased metabolism. Some evidences suggest that the LP can participate in an inhibitory control system involved in the propagation of the seizures.

Glucose utilisation during status epilepticus in an epilepsy model induced by pilocarpine: a qualitative study.

Status epilepticus (SE) is a medical emergency and it is associated to brain damage. 2-deoxy-[14C] glucose (2-DG) procedure has been used to measure the alterations in the functional activity of the brain induced by various pharmacological and toxicological agents. The aim of this study was to determine which changes occur in the seizure anatomic substrates during the SE induced by pilocarpine (PILO) using [14C]-2 deoxyglucose functional mapping technique.

Epileptogenesis in immature rats following recurrent status epilepticus.

Strong evidences link status epilepticus (SE) in childhood with the later development of epilepsy. Pilocarpine-induced SE in developing rats leads to late appearance of spontaneous epileptic seizures only when SE is induced after the 18th day of life. We examined the possibility that 3 consecutive episodes of pilocarpine-induced SE on postnatal days 7, 8 and 9 could induce behavioral, electrographic and histological epileptic changes in adult life.

Effect of physical exercise on seizure occurrence in a model of temporal lobe epilepsy in rats.

Although the favorable effect of physical fitness on general health is unquestionable, physical exercise and fitness programs in patients with epilepsy are still a matter of controversy. Little objective evidence regarding the effect of exercise on seizure frequency and severity has been reported. One sought to clarify the relationship between exercise and epilepsy in an animal model of temporal lobe epilepsy (the pilocarpine model of epilepsy).

The course of untreated seizures in the pilocarpine model of epilepsy.

The course of untreated epilepsy is not well established. This study uses a model of chronic limbic epilepsy (pilocarpine model of epilepsy) to determine the pattern of occurrence of seizures in untreated animals. Following pilocarpine administration, 21 rats were monitored continuously with a video system for 135 days after the first spontaneous seizure.

Monoamine responses to acute and chronic aerobic exercise in normotensive and hypertensive subjects.

Objectives: The purpose of the present study was to compare the plasma and serum monoamine levels in sedentary, untrained normotensive and hypertensive men at rest with levels measured after an acute bout of exercise and to compare similar measurements following a 12-week aerobic training program. PLACE OF STUDY: The data obtained for this study was collected from a clinic for the prevention of heart disease and cardiac rehabilitation (FITCOR) and analyzed in the Federal University of São Paulo (EPM), Laboratory of Experimental Neurology.

Subjects: Two groups of untrained male subjects, i.

Effect of physical exercise on kindling development.

The relationship between epilepsy and exercise is a subject of controversy and needs more investigation. We report a study of the effect of physical activity on the development of amygdala kindling in rats. To analyze the acute and chronic effects of exercise on kindling development, 45 rats were divided randomly into three groups.

Effect of an aerobic exercise program on blood pressure and catecholamines in normotensive and hypertensive subjects.

Interrelations between physical exercise, monoamines and hypertension are postulated by various investigators. The purpose of the present study was to determine and compare catecholamine levels at rest and after a 12-week aerobic exercise program in 11 sedentary normotensive (N) and 8 hypertensive (H) men. Plasma catecholamines were determined by high performance liquid chromatography with electrochemical detection.