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Biomedical subjects

Y Maeda

Publications and source records attributed to Y Maeda.

At least 1,045 records · Page 58Linked to original sources
PubMed1978

Thermal analysis of the spores of Bacillus cereus with special reference to heat activation.

The heat activation of bacterial spores was studied by means of differential thermal analysis in the temperature range 30-110 degrees C using the spores of Bacillus cereus. The thermogram showed three endothermic peaks at 56, 95, and 103 degrees C with one exothermic peak at 105 degrees C during the heating process. The spore coat separated from the native spores also showed a peak at 56 degrees C on its heating thermogram. The peak at 56 degrees C was reversible for both native spores and the spore coat. It was suggested that this peak at 56 degrees C might be related to the heat-activation process that takes place in the spore-coat region. It seems that the peak is due to the denaturation or the structural change of the spore-coat protein that might facilitate either the permeation of germination stimulators or the release of some germination inhibitor into or out of the spores.

Bacillus cereus↗
PubMed1978

Cytochemical demonstration of adenylate and guanylate cyclases in vascular smooth muscle of circle of Willis.

The cytochemical localization of adenylate cyclase and guanylate cyclase was studied in the arteries of the circle of Willis in dogs. The reaction products of both adenylate and guanylate cyclases were similarly distributed and selectively localized predominantly adjacent to sarcoplasmic reticulum and sparsely to mitochondria and outer nuclear membranes of vascular smooth muscles. The observations could suggest a close association of the intracellular localizations of both cyclases and the intracellular calcium storage sites, and ultimately contribute to our complete understanding of regulation of cerebral blood flow and vasospasm.

Adenylyl Cyclases↗