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It has been shown previously that externally added glycine betaine is accumulated in Escherichia coli in response to the external osmotic strength. Here we have shown, by using nuclear magnetic resonance spectroscopy and radiochemical methods, that E. coli growing in a glucose-mineral medium of elevated osmotic strength generated with NaCl, had the same(More)
To evaluate the pattern of goblet cell differentiation in sinus mucosa in response to external stimuli, New Zealand White rabbits were subjected to either experimental sinusitis or topical capsalcin application. Sinus mucosa was examined by light microscopy after serial sectioning, whole-mount preparation or immunohistochemistry. The mucosa was also(More)
Removal of tattoos was studied in the guinea pig. Professional tattoos were made, and two different solutions of tannic acid were injected intradermally into the tattoos four times. The macroscopic end result was formation of a slight fibrosis with little visible pigment. Histologic examination after treatment showed a moderate fibrosis with little visible(More)
A procedure for the synthesis of tritiated 4-azidophenylalanine in a radioactively homogeneous form is described. The characteristics of the 4-azidophenylalanine uptake by pig intestinal microvillar vesicles and its interaction with the neutral amino acid transport have been studied. 4-Azidophenylalanine is transported into an osmotically sensitive space(More)
A survey was performed to assess the occupational exposures to styrene and noise, and to evaluate the effectiveness of engineering controls for styrene in two distinct fiberglass reinforced plastic (FRP) boat manufacturing plants. The primary objective of this study was to quantify the exposures occurring in both an open and closed mold plant and to(More)
Hemolytic anemia caused by oxidative drugs is thought to result from the oxidation of intracellular and membrane sulfhydryl groups of the erythrocyte. This process is more likely to occur in those erythrocytes in which the intracellular mechanism for reduction of disulfides is abnormal (e.g., glucose-6-phosphate dehydrogenase deficiency). If a membrane(More)