Acta neurologica Belgica
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Acta neurologica Belgica · Sep 2013
Prevalence and predictive factors for poor sleep quality among migraineurs in a tertiary hospital headache clinic.
The aim of this study was to investigate the prevalence and predictive factors for poor sleep quality among migraineurs in a tertiary hospital headache clinic in southwest China. In this study, we used a visual analog scale (VAS), the Pittsburgh Sleep Quality Index (PSQI), and the Hospital Anxiety and Depression Scale (HADS) to assess headache intensity, sleep quality as well as anxiety and depression symptoms. In 211 subjects who were assessed continuously, we found that the average PSQI score was 8.03 ± 4.71, and 130 (61.61 %) migraineurs exhibited poor sleep quality (PSQI >5). ⋯ Moreover, we found that most migraineurs did not adopt treatment for their poor sleep quality. Only 17 (8.06 %) patients used sleeping medication to improve their poor sleep quality; however, this medication was not effective in 16 (94.12 %) patients. Therefore, it is highly important to resolve poor sleep quality in migraineurs.
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Acta neurologica Belgica · Sep 2013
Blunted endogenous GABA-mediated inhibition in the hypothalamic paraventricular nucleus of rats with streptozotocin-induced diabetes.
The hypothalamic paraventricular nucleus (PVN) is involved in the regulation of sympathetic outflow and particularly affects the heart. This study sets out to determine the role of GABA of the paraventricular nucleus (PVN) in cardiovascular regulation in streptozotocin-induced diabetic rats. Pharmacological stimulation of glutamatergic receptors with DL-Homocysteic acid (200 mM in 100 nL) in the PVN region showed a significant depression in both mean arterial pressure (MAP) and heart rate (HR) of diabetic rats (Diabetic vs. non-diabetic: MAP 15.0 ± 1.5 vs. 35.8 ± 2.8 mmHg; HR 3.0 ± 2.0 vs. 30.0 ± 6.0 bpm, P < 0.05). ⋯ A microinjection of muscimol (2 mM in 100 nL), which is a GABAA receptor agonist, in the PVN elicited decreases in MAP and HR in both groups. The diabetic group showed a significantly blunted reduction in HR, but not MAP (Diabetic vs. non-diabetic: MAP -15.7 ± 4.0 vs. -25.0 ± 3.8 mmHg; HR -5.2 ± 2.1 vs. -39.1 ± 7.9 bpm). The blunted vasopressor and tachycardic responses to bicuculline microinjection in the diabetic rats are likely to result from decreased GABAergic inputs, attenuated release of endogenous GABA or alterations in GABAA receptors within the PVN.
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Acta neurologica Belgica · Sep 2013
Letter Case ReportsMasticatory myorhythmia following pontine hemorrhage.