Results 161 to 170 of about 54,144 (194)
Some of the next articles are maybe not open access.
Nature, 1948
IN a previous communication1, we were able to confirm that urease is present in the gastric mucosa and, to some extent, in the duodenal mucosa. It was pointed out that the amount of the ferment present in the whole stomach of an animal is sufficient to release enough ammonia from urea to neutralize large amounts of hydrochloric acid.
O, FitzGERALD, P, MURPHY
openaire +2 more sources
IN a previous communication1, we were able to confirm that urease is present in the gastric mucosa and, to some extent, in the duodenal mucosa. It was pointed out that the amount of the ferment present in the whole stomach of an animal is sufficient to release enough ammonia from urea to neutralize large amounts of hydrochloric acid.
O, FitzGERALD, P, MURPHY
openaire +2 more sources
Incorporation of urease into liposomes
Biochimica et Biophysica Acta (BBA) - General Subjects, 1977Abstract 1. 1. Urease was entrapped in egg lecithin liposomes. About 1 mg of protein was incorporated per 10 mg of lipid, which corresponds to a molar lipid: protein ration of about 4600. 2. 2. The entrapment procedure led to a change of the apparent Michaelis constant from about 68 mM (free enzyme) to about 167 mM (entrapped enzyme). The V
openaire +2 more sources
Immobilization of cholinesterase and urease
Analytical Biochemistry, 1970Abstract Procedures are described for the immobilization (insolubilization) of the enzymes cholinesterase and urease in starch and polyacrylamide. Various parameters affecting the immobilization are discussed, and the stability of the insolubilized enzymes in storage and in use is reported.
G G, Guilbault, J, Das
openaire +2 more sources
American Journal of Physiology-Legacy Content, 1961
Ammonium intoxication in dogs was induced by intravenous administration of urease. This method affords a unique preparation for the study of ammonia metabolism in vivo, since, within limits, a self-perpetuating, cyclic release of ammonia is achieved.
openaire +2 more sources
Ammonium intoxication in dogs was induced by intravenous administration of urease. This method affords a unique preparation for the study of ammonia metabolism in vivo, since, within limits, a self-perpetuating, cyclic release of ammonia is achieved.
openaire +2 more sources
Analytical Biochemistry, 1970
Abstract An important sensing electrode has been developed for assay of the enzyme urease. It is based on the peak or steady-state potential obtained with the aid of a roller pump to control the concentration of urea against the surface of an ammonium ion electrode.
openaire +2 more sources
Abstract An important sensing electrode has been developed for assay of the enzyme urease. It is based on the peak or steady-state potential obtained with the aid of a roller pump to control the concentration of urea against the surface of an ammonium ion electrode.
openaire +2 more sources
Inhibition of urease by hydroxyurea
Biochemical Pharmacology, 1965Abstract Hydroxyurea was shown to be a potent inhibitor of urease; 50% inhibition occurred at a concentration of approximately 5 × 10−5 M. Preincubation of the enzyme with the inhibitor prior to addition of substrate yielded inhibition which progressed with time, whereas simultaneous addition of inhibitor and substrate to the enzyme reduced the ...
openaire +2 more sources
Quantification of Urease Activity
2019Urease is one of the most distinctive virulence factors of Proteus mirabilis pathogenesis. Urease activity correlates with many landmark side effects of P. mirabilis catheter-associated urinary tract infections, such as urolithiasis and bacteremia.
Shawn, Richmond, Alejandra, Yep
openaire +2 more sources