Publications by authors named "Gradel A"

Introduction: Alexithymia, characterized by difficulty identifying and expressing emotions, is commonly observed in individuals with psychiatric and neurological disorders. However, its prevalence in patients with epilepsy (PWE), particularly in those with drug-resistant epilepsy (DRE), remains under-researched. This study investigates the prevalence of alexithymia in patients with DRE and explores its associated factors.

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Status epilepticus (SE) represents one of the most common neurological emergencies, associated with high mortality and an important risk of functional sequelae in survivors. Magnetic resonance imaging (MRI) offers the possibility of early and noninvasive observation of seizure-induced parenchymal disturbances secondary to the epileptic process. In the present review, we propose a descriptive and comprehensive understanding of current knowledge concerning seizure-induced MRI abnormalities in SE, also called peri-ictal MRI abnormalities (PMAs).

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Article Synopsis
  • The study investigates how functional non-epileptic seizures affect patients' quality of life and identifies factors that might predict these effects.
  • It involved 72 adult patients who were assessed at diagnosis and again six months later using the Quality of Life in Epilepsy Inventory-31 (QOLIE-31) along with psychiatric evaluations.
  • Results indicated that factors like depression and anxiety are linked to a decreased quality of life, highlighting the need for combined neurological and psychiatric approaches in treatment.
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Ghrelin represents a key hormone regulating energy balance. Upon activation of the growth hormone secretagogue receptor (GHSR), ghrelin increases blood glucose levels, food intake, and promotes weight gain. The liver-expressed antimicrobial peptide 2 (LEAP2) acts as an endogenous antagonist of the GHSR.

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Prediction of human pharmacokinetics (PK) from data obtained in animal studies is essential in drug development. Here, we present a thorough examination of how to achieve good pharmacokinetic data from the pig model for translational purposes by using single-species allometric scaling for selected therapeutic proteins: liraglutide, insulin aspart and insulin detemir. The predictions were based on non-compartmental analysis of intravenous and subcutaneous PK data obtained from two injection regions (neck, thigh) in two pig breeds, domestic pig and Göttingen Minipig, that were compared with PK parameters reported in humans.

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In humans, food intake and glucose infusion have been reported to increase subcutaneous blood flow. Since local blood flow influences the rate of insulin absorption from the subcutaneous tissue, we hypothesised that an increase in blood glucose levels-occurring as the result of glucose infusion or food intake-could modulate the pharmacokinetic properties of subcutaneously administered insulin. The pharmacokinetic profile of insulin aspart was assessed in 29 domestic pigs that were examined in a fed and fasted state or included in hyperinsulinaemic clamp studies of 4 vs.

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The domestic pig is commonly used as animal model in the pharmaceutical development of new therapeutics for treatment of diabetes. Since a formal definition of hypoglycaemia only exists in humans, the purpose of this study was to assess the counterregulatory response in the domestic pig at glucose levels known to induce symptoms of hypoglycaemia in humans. Six pigs were included in hyperinsulinaemic glucose clamps with plasma glucose targets of 2, 3 and 5 mmol/L in a cross-over design, and the associated glucose counterregulatory response was assessed by measuring glucose kinetics and levels of glucagon, c-peptide, catecholamines, cortisol and growth hormone.

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Variability in the effect of subcutaneously administered insulin represents a major challenge in insulin therapy where precise dosing is required in order to achieve targeted glucose levels. Since this variability is largely influenced by the absorption of insulin, a deeper understanding of the factors affecting the absorption of insulin from the subcutaneous tissue is necessary in order to improve glycaemic control and the long-term prognosis in people with diabetes. These factors can be related to either the insulin preparation, the injection site/patient, or the injection technique.

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Background: In humans, subcutaneous administration of insulin in the abdominal region or arm is associated with a faster absorption compared to the thigh or buttocks. We hypothesised that this is partly caused by differences in injection depot structure and kinetics and that the variability in insulin exposure differs between injection sites.

Material And Methods: Regional effects on insulin pharmacokinetics were evaluated in a series of studies in Sprague Dawley rats dosed subcutaneously with insulin aspart in the neck or flank.

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Abdominal obesity and/or a high intake of fructose may cause hypertension. K channels, Na/K-ATPase, and voltage-gated Ca channels are crucial determinants of resistance artery tone and thus the control of blood pressure. Limited information is available on the role of K transporters in long-term diet-induced hypertension in rats.

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The epidemic of chikungunya (CHIK) that swept through Reunion Island from late 2005 to mid 2006 affected 38.2% of the population, i.e.

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