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Y Utsugi

Publications and source records attributed to Y Utsugi.

5 recordsLinked to original sources
PubMed1990

[Repetitive rhythmic spikes in epileptic children].

Repetitive rhythmic spikes (RRSs') sometimes appear periodically for 0.2-2.0 seconds at localized in epileptic children. We selected 11 patients (male 6, female 5) with RRSs for this study. Ages were 3-15 years (average 10.7 years). We counted the number of spikes which were recorded on the scalp EEG. The duration of RRSs and the differences of amplitude between large and small spikes on monopolar montages were examined. We also studied the appearance of spikes under different recording conditions; waking and sleep stages, photic stimulation and hyperventilation. Furthermore, we made two dimensional joint-dot plotting for the interval between repetitive spikes. RRSs were classified into two groups. In the first group, joint-dots of RRSs were locally observed between 0.2-0.8 sec. In the second, they were disseminated between 0.2-2.0 sec. In two groups, spikes were mainly observed in the sleep EEG (stage 1). The average number of spikes in the first group was 18.7/min, and that in the second was 25.7/min. The average difference of the amplitude between large and small spikes was 103 microV in the first group, and 88 microV in the second group. The average duration of spikes was 54.2 msec in the first group and 62.4 msec in the second group. From these results, it was assumed that some of spikes in the first group occurred in the surface of the cortex and that some of spikes in the second group were projected from the deep region in the cortex.

Adolescent↗
PubMed1984

[Formation of experimental obesity by Crisco].

Randomized male litter S.D. rats (weight: about 60 g, 1 group: 10 rats) were used. By using Crisco (hydrogenated cotton seed oil) within the limits of 10 approximately 60%, the intake of the 30% group was high and a good incidence rate of obesity (about 100%) was obtained in the 6 month experiment. In the 30% group, increases of wet weight in perirenal retroperitoneal and subcutaneous fat depots, increases of the number and diameter of fat cells (perirenal retroperitoneal fat depot), elevations of liver fat % and serum insulin level, and a fall of liver phosphoenolpyruvate carboxykinase activity were observed in the 3 month experiment.

Animals↗