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Biomedical subjects

S Morimoto

Publications and source records attributed to S Morimoto.

At least 811 records · Page 45Linked to original sources
PubMed1980

Effect of steam temperature in the pelleting process of chicken food on the viability of contaminating bacteria.

Pellet feeds were prepared at 70, 80, 83 and 90 degrees C under constant steam pressure of 4.0 kg/cm2. Under these conditions, the foods received 10 seconds of heat treatment, but treatment at 90 degrees C was found inappropriate since the food became slushy. Pelleting conditions examined in this study did not eliminate all contaminating bacteria, but coliforms from ingredients were killed when pelleting was conducted at over 80 degrees C. Concentrations of vitamins were not decreased during pelleting. The optimum temperature for pelleting food is considered to be 83 degrees C under the conditions investigated in this study.

Animal Feed↗
PubMed1980

Lymphangiographic demonstration of thoracic duct cyst.

We describe the first reported case of a cyst of the thoracic duct which was diagnosed prior to surgery by bipedal lymphangiographic studies. The differential diagnosis of posterior mediastinal masses should include this pathologic entity.

Adult↗
PubMed1980

Meal-related changes in plasma calcitonin levels in patients with medullary thyroid carcinoma.

In 3 patients with medullary thyroid carcinoma, plasma calcitonin levels showed 3 distinct peaks associated with a simultaneous rise in plasma gastrin after each meal. It is suggested that endogenous gastrin secreted following food intake stimulated the calcitonin secretion from the tumor. The peak of the plasma calcitonin secretion after the evening meal was less prominent than that for breakfast or lunch, while no significant differences were observed in peak values in plasma gastrin after each meal. The reason for this discrepancy remains to be clarified.

Adult↗
PubMed1980

Intracellular chloride concentration and evidence for the existence of a chloride pump in frog skeletal muscle.

Intracellular chloride concentration in frog sartorius muscle was determined at 20 degrees C utilizing ionic permeability change of the membrane for an ion-selective electrode. The membrane potential and external potassium concentration relation was obtained with changes in pH. Using the constant field equation with a condition given by the crossing point in the two relations obtained with the two different pH, the intracellular chloride concentration was estimated to be 3.7 +/- 0.18 mM (mean +/- S.E.M.) with a 0.76 of the activity coefficient for chloride in Ringer's solution. The chloride potential (-88.5 +/- 1.26 mV) was significantly positive to the resting potential (-94.8 +/- 1.09 mV), suggesting that a chloride pump may be working in the frog skeletal muscle. The existence of the chloride pump was supported further by the fact that the depolarization induced by the pH increase became smaller with cooling and finally disappeared when cooled below 5 degrees C.

Animals↗
PubMed1980

Properties of spike potentials detected by a surface electrode in intact human muscle.

A clearly discriminable train of spikes was detected by ordinary silver disc electrodes fastened to the skin surface overlying m. vastus medialis during voluntary contraction in man. Some properties of these surface spikes were obtained. (1) Motor unit potentials detected by the inserted electrode loaded in the muscle closely under the fascia were found to be synchronized with the surface spikes. (2) The conduction velocity was around 3.5 m/s. (3) A starting point of the excitation, i.e., ,end-plate," was located at a point one-third of the observed length from the distal end in this particular case. (4) The conduction velocity showed a linear relationship with muscular temperature and Q10 approximately equal to 2.0 in the range of 17-31 degrees C. (5) The amplitude of the surface spikes decreased monotonously with increasing the distance between the source and electrode. (6) Wave forms and threshold values were highly reproducible. (7) Similar surface spikes have been found in six other muscles in the subject S.M. and in m. vastus medialis in five other subjects.

Action Potentials↗
PubMed1980

Normal anatomy of thymus and anterior mediastinum by pneumomediastinography.

Normal radiographic appearances of the thymus and anterior and superior mediastinum based on 34 pneumomediastinograms performed on myasthenia gravis patients are discussed. Knowledge of (1) end-on shadow of major vessels in the mediastinum, (2) topographic relation between major vessels and bilateral lobes of the thymus, (3) variable shape, size, and uneven outline of the normal thymus, and (4) irregularly distributed mediastinal fat, helps make more precise radiographic interpretation in this region.

Adipose Tissue↗