Comprehensive Improvement of Various Features of Cu-Cd Ferrites (CuCdFeCeO) by Cerium (Ce) Ion Substitution.

Cerium (Ce) substitution in Cu-Cd spinel nanoferrites with the compositional formula CuCdFeCeO ( = 0.0, 0.0125, 0.

Cobalt oxide modified sulfur and phosphorus Co-doped g-CN for screening of urinary human albumin.

The fabrication of a heteroatom-doped nanocomposite based on cobalt oxide modified sulfur, phosphorus co-doped carbon nitride (CoO/SP-CN) with increased active sites is reported. The synthesized nanocomposite offers surprisingly high electrocatalytic oxidation efficacy toward human albumin (HA) despite its agglomeration. This improved efficacy of CoO/SP-CN nanocomposite could be attributed to its increased adsorption sites and surface defects, fast charge transportation capability, and conductivity.

Response to beta interferon 1b among Saudi patients with multiple sclerosis.

Objective: To determine the efficacy and tolerability of subcutaneous beta interferon 1b (B1F1b) among Saudi patients with remitting-relapsing multiple sclerosis (R-R MS).

Methods: An open label study held at the Neurology Division of the Armed Forces Hospital, Riyadh from March 1997 until December 2001. Thirty-two consecutive patients below the age of 50 years with clinically definite R-R MS according to Poser's Criteria and expanded disability status scale below 5.

Response to beta interferon 1b among Saudi patients with multiple sclerosis.

Objective: To determine the efficacy and tolerability of subcutaneous beta interferon 1b (B1F1b) among Saudi patients with remitting-relapsing multiple sclerosis (R-R MS).

Methods: An open label study held at the Neurology Division of the Armed Forces Hospital, Riyadh from March 1997 until December 2001. Thirty-two consecutive patients below the age of 50 years with clinically definite R-R MS according to Poser`s Criteria and expanded disability status scale below 5.

Neuromyelitis optica.

Neuromyelitis optica disease is characterized by simultaneous or successive attacks involving both the optics nerves and spinal cord without any evidence of the disease elsewhere. We report a 22-year-old Saudi woman with relapsing neuromyelitis optica disease. She had all the clinical, cerebrospinal fluid, and radiological features that differ from primary demyelinating disease.

Hypertensive encephalopathy after successful treatment of eclampsia.

The association between acute rise of blood pressure and encephalopathy with early recognition, and therapy reversibility has been reported. We reported a case of a young lady in postnatal period, presented with acute rise of blood pressure, encephalopathy, quadriparesis, and apraxia. Magnetic resonance imaging of the brain showed hyperintense lesions in occipital, parietal and right temporal areas.

New features in the Saudi Medical Journal.

Full text is available as a scanned copy of the original print version.

New Horizons in management of Alzheimer's disease.

Full text is available as a scanned copy of the original print version.

New features in the Saudi Medical Journal.

Full text is available as a scanned copy of the original print version.

Saudi Medical Journal. Two Decades of Success.

Full text is available as a scanned copy of the original print version.

Heat strokes: aetiopathogenesis, neurological characteristics, treatment and outcome.

Heat stroke is a thermal insult to the cerebral thermoregulatory system controlling heat production and heat dissipation. The thermal insult may be environmental as in 'classic heat stroke' or endogenous as in 'exertional heat stroke' in joggers or runners. The insult will lead to a steady rise in body core temperature to 40 degrees C or more, exhaustion of sweating with hot dry skin and central nervous system disturbances ranging from confusion to deep coma.

Acute transverse myelitis. A localized form of postinfectious encephalomyelitis.

We analysed the clinical, imaging, electrophysiological, laboratory findings, course and prognostic factors in 31 patients with acute transverse myelitis (20 men and 11 women; mean age, 30 years; range, 18-51 years). All patients were assessed for maximal clinical deficit 'deficit score'; pattern-shift visual, auditory and somatosensory evoked potentials were measured, CSF was examined, and neuroimaging of the spinal cord and brain (MRI or CT myelography) was carried out. The myelitis was preceded by febrile illness in 25 (81%) of the patients.

Nocturnal epilepsies in adults.

We evaluated the clinical characteristics and the electroencephalographic (EEG) findings by long video-EEG monitoring in 64 successive patients with definite nocturnal seizures. Mental state, neurological examination, neuroimaging and EEG background were normal in all patients. Classification of epilepsies was possible in 42 out of 64 (66%) patients according to the revised Classification of Epilepsies and Epileptic Syndromes by the Commission on Classification and Terminology of International League Against Epilepsy (1989).

Sumatriptan treatment of acute migraine attacks in a Saudi population.

Sumatriptan has been shown to be most effective in migraine attacks, but with transient, slight side effects and high rebound attack rates. We carried out a prospective study on the efficacy and safety of Sumatriptan in a Saudi population. A series of 63 consecutive out-patients with migraine histories ranging from 1/2 to 20 years were given six tablets of 100 mg Sumatriptan plus two diary cards to record the effects and side effects of the drug in two attacks per patient.

Subacute sclerosing panencephalitis (SSPE): early diagnosis, prognostic factors and natural history.

We studied the value of long video-split electroencephalographic monitoring (VSEEG) in detecting myoclonus in nearly SSPE and evaluated the natural history and outcome-affecting factors. The 32 newly diagnosed patients had VSEEG to detect myoclonus and its correlations with EEG periodic complexes. Disease progression was monitored by a special "outcome score'; the chi-square test and multi-variable statistics analysed the outcome score in relation to different variables, such as age at onset, sex, duration of symptoms at presentation, CSF measles antibody titre, type and interval between periodic complexes (EEG discharges).

Neurological complications of infective endocarditis.

We reviewed the files of 80 successive patients with native and prosthetic valve endocarditis admitted to Riyadh Armed Forces Hospital. Neurological complications (NC) occurred in 28 (35%) patients. The valves involved were mitral in 12 (43%), aortic in eight (29%), combined mitral and aortic lesions in six (21%), and others in two (7%).

Multiphasic disseminated encephalomyelitis presenting as alternating hemiplegia.

Two cases of alternating hemiparesis are reported, one in a black Sudanese woman, the other in a Saudi man, who had two episodes of alternating hemiparesis separated in time by six and three years respectively. Based on the typical appearance of the MRI and the results of brain biopsy, the diagnosis of multiphasic disseminated encephalomyelitis was made rather than that of multiple sclerosis. This entity is also differentiated from recurrent disseminated encephalomyelitis, where the relapses are symptomatically stereotyped although the appearance of the MRI is similar and in which new lesions do not occur.

Electroclinical seizures in Lennox-Gastaut syndrome.

We analyzed electroclinical seizures observed by long video split-screen recording in 21 patients with Lennox-Gastaut syndrome (LGS). All patients had atypical absence seizures, 18 (81%) had tonic seizures, and 4 (21%) had myoclonic-atonic seizures. Tonic seizures were axial with flexion or extension of the head or trunk, or global with generalized tonic spasm mimicking infantile spasm, or involved the eyeballs only (either brief, with upward deviation of eyeballs or long, with oscillatory nystagmus).

Diagnostic role of brain-stem auditory evoked potentials in neurobrucellosis.

Evoked potential audiometry and brain-stem auditory evoked potentials were evaluated in 15 patients with systemic brucellosis in whom brucella meningitis was suspected clinically. In 8 patients cerebrospinal fluid (CSF) was abnormal with high brucella titre, and evoked potentials were abnormal in all of them. In 7 patients the CSF was normal and evoked potentials were also normal.

Effects of methylcobalamin on diabetic neuropathy.

We studied the clinical and neurophysiological effects of methylcobalamin on patients with diabetic neuropathy. In a double-blind study, the active group showed statistical improvement in the somatic and autonomic symptoms with regression of signs of diabetic neuropathy. Motor and sensory nerve conduction studies showed no statistical improvement after 4 months.