Single-voxel magnetic resonance spectroscopy of brain tissue adjacent to arachnoid cysts of epileptic patients.

Intracranial arachnoid cysts (ACs) are usually asymptomatic, benign developmental anomalies. The most frequent clinical manifestations are cranial expansion, hydrocephaly, headache, epileptic seizures, psychomotor retardation, and aphasia. It is unknown whether there is a correlation between intracranial AC and epileptic seizures without obvious intracranial pressure signs.

Reduced P50 auditory sensory gating response in professional musicians.

Evoked potential studies have demonstrated that musicians have the ability to distinguish musical sounds preattentively and automatically at the temporal, spectral, and spatial levels in more detail. It is however not known whether there is a difference in the early processes of auditory data processing of musicians. The most emphasized and studied early process, especially for neuropsychiatric purposes, is sensory gating.

Cerebral artery hemodynamics in polycystic ovary syndrome.

Objective: The aim of the present study was to investigate hemodynamic changes in the medial cerebral artery and also the internal carotid artery in young women with polycystic ovary syndrome (PCOS) and polycystic ovaries (PCO).

Methods: Twenty-eight patients with PCOS, 16 patients with PCO and 24 healthy control subjects were included in the study. Blood flow rate, pulsatility index and back pressure of both the medial cerebral artery and the internal carotid artery were determined by transcranial Doppler ultrasonography and the results compared between groups.

Correlations between event-related potential components and nitric oxide in maximal anaerobic exercise among sportsmen trained at various levels.

Physical exercise has influence on all organs except its effects on the central nervous system have not been fully elucidated. This study attempts to determine whether the degree of training could affect the response to physical stress by comparing the three groups of males in different levels of the physical fitness. Serum samples from high (n = 11), moderate (n = 10), and low physical activity sportsmen (n = 10) were collected to determine nitrite/nitrate levels before and after carrying out an anaerobic maximal exercise test.

Crocodile tears syndrome: botulinum toxin treatment under EMG guidance.

Crocodile tears syndrome is one of the rare complications of facial paralysis. There have been several reports of cases in which botulinum toxin was found to be useful in the treatment of crocodile tears syndrome. The adverse effects, due to the paralytic action of botulinum toxin, have been reported to involve the palpebral muscle, lateral rectus and superior rectus.

Sympathetic skin response in premenstrual syndrome.

Premenstrual syndrome is a term which includes a broad group of emotional, behavioral and physical symptoms that occur for several days before menses and subside following the menstrual period. Many women experience premenstrual syndrome symptoms, particularly physical ones such as breast tenderness and swelling. Approximately 5-10% women suffer from severe premenstrual syndrome and another 30-40% have moderate symptoms.

Cognitive event-related potential and neuropsychological findings in Behcet's disease without neurological manifestations.

Behcet's disease (BD) is a multisystem inflammatory disorder characterized by recurrent oral and genital ulcers and uveitis. BD patients without neurological involvement frequently have mild neurological symptoms. The aim of this study was to evaluate whether BD patients without neurological involvement have any changes in cognitive functions.

Isolated intracranial hypertension: a rare presentation of neurobrucellosis.

Brucella melitensis infection is endemic in the eastern and south-eastern Anatolia regions of Turkey. We report an unusual case of brucella meningitis presenting with bilateral papilla stasis, diplopia and absence of other neurological involvement. Diagnosis was made by positive culture of Brucella spp.

Topographic abnormalities in event-related potentials in children with monosymptomatic nocturnal enuresis.

Aims: A functional maturational delay in the central nervous system is dwelled upon in the pathogenesis of monosymptomatic nocturnal enuresis (MNE). In this study we studied whether according to controls N200 and P300, components of the event-related potential (ERP), which is related to aspects of cognitive processing, showed any difference in its topographic distribution in children within the age group 10-13 with monosymptomatic nocturnal enuresis and discussed its relation to the pathogenesis of MNE.

Methods: We performed P300 in 18 patients with MNE and in 16 age-matched healthy subjects.

The effect of valproate on bone mineral density in adult epileptic patients.

The effect of long-term valproate (VPA) treatment on bone mineral density (BMD) in adult epileptic patients is not clearly known, although several studies have been done in children. In adult epileptic patients (n = 50; 24 men, 26 women) treated with VPA, the bone mineral density at lumbar level (L1-L4) and neck, trochanter, and intertrochanter regions of left femur was studied by dual energy X-ray absorptiometry (DXA) at the beginning of the study and after 6 months, with the specific aim to evaluate the effect of long-term valproate monoteraphy on bone mineral density. Routine biochemical parameters were also evaluated.