Kazuro Takahashi

Platelet substance P and 5-hydroxytryptamine in migraine and tension-type headache

SYNOPSIS

Decreased superoxide dismutase activity in erythrocyte in Parkinson's disease.

Abstract: Superoxide dismutase (SOD) activities in Parkineons disease (PD) were significantly lower than those in controls, especially in a treated PD group. However, SOD activities in an untreated PD group did not decrease. There was a signillcant correlation between SOD activities and the duration of illness in the treated PD group (p<0.05). There was a significant correlation between SOD activities and the present doses of L‐DOPA/carbidopa in the treated PD group.

Transient Global Amnesia and Falcotentorial Meningioma: —A Case Report—

Abstract: A 59‐year‐old woman suffered from a single episode of transient global amnesia (TGA). A computerized tomographic scan and angiographic examinations revealed a falcotentorial meningioma, supplied by the posterior cerebral arteries. We suggest that TGA can be attributed to the vascular insufficiency in this case.

Headaches in Dementia

SYNOPSIS

A Case of Prolonged Confusion after Temporal Lobe Psychomotor Status

A 36‐year‐old man with prolonged confusion developed after psychomotor status was reported. He had no past history of epileptic seizures or psychotic disorders. The status continued for 20 hours, and twilight state and a slight fever lasted for about 10 days. Thereafter gross impairment of memory and disorientation became remarkable, and, in addition, strong psychic and autonomic disturbances developed, such as visual and auditory hallucinations, excessive excitement, disturbance of sleep, polyphagia, polydypsia, polyuria and hyperhidrosis.

The Application of WPSI to Epilepsy Patients

Abstract: Eighty‐five epilepsy patients were questioned using the Washington Psychosocial Seizure Inventory (WPSI). It was confirmed that uncontrollable epilepsy patients had more severe psychosocial problems than other patients. WPSI was also useful in clinical work.

Apolipoprotein Abnormalities in Dementia

Abstract: The serum levels of apolipoprotein B, C‐II and the ratio of apolipoprotein B/A‐I were found to be significantly higher in multiinfarct dementia than in dementia of the Alzheimer type. The high serum levels of apolipoprotein B, C‐II and the high ratio of apolipoprotein B/A‐I may cause multiinfarct dementia. The large difference between the groups suggests that the serum levels of apolipoprotein B, C‐II and the ratio of apolipoprotein B/A‐I may be useful in differential diagnosis of these two kinds of dementia.

Cerebral Infarction due to Disseminated Intravascular Coagulation with Thromboexclusion for Dissecting Aortic Aneurysma

Abstract: Cserebral infarction due to chronic disseminated intravascular coagulation (DIC) after thromboexclusion for thoracic dissecting aortic aneurysma is described.

Exteroceptive Suppression of the Masseter and Temporalis Muscles and Parkinsonian Rigidity

Abstract: Exteroceptive suppression of the masseter and temporalis muscles, produced by electrical stimulation of the mental nerve, was studied in 40 patients with Parkinsons disease (PD) and 18 age‐matched control subjects. Prior to the stimulation, background electromyographic activity showed no difference between the normal subjects and patients with PD. The latency in the patients with PD did not differ from that in the normal subjects. The duration and degree of suppression were lower in the patients with PD when compared with the normal subjects. The low level of degree was more obvious in patients with severe rigidity in the neck. A low degree of exteroceptive suppression might play a partial role in causing rigidity.

Topographical Displays of Somatosensory Evoked Potentials

Abstract: The distribution of somatosensory evoked potentials (SEPs) after stimulation of the median nerve at the wrist was examined in 10 normal subjects using isopotential maps. The latencies of continuous negative and positive peaks were measured in each lead. The differences of the potentials at these latencies were measured in all the leads and the isopotential maps were constructed. The distribution of P0–NI was all similar. The latencies of P0 were almost the same in all the leads at about 13 msec. The distribution of NI‐PI‐NII was divided into three types—N16–P20–N28 localized in the frontal region, N17–P22–N30 localized in the central region and N19–P25–N33 distributed in the parieto‐occipito‐temporal regions. The distributions of NII‐PII and PII‐NIII were all similar, with high amplitudes in the central region. The latencies of PII and NIII were almost the same in all the leads at about 45 msec and 68 msec.