Objective: In this study, we evaluated zinc gluconate stabilized with glycine (GZ) and sulfate (SZ) in fermented milk as vehicle. Zinc bioavailability was evaluated in an animal model (Sprague Dawley rats) for both zinc sources in the vehicle with a probiotic (Lactobacillus casei DN114001). Results: For growth parameters, higher weight gain and femur weight values were observed when probiotic a...

CONTEXT To evaluate the effect of widely used endodontic irrigating solutions on root dentin microhardness and surface roughness. MATERIALS AND METHODS One hundred twenty, non-carious extracted human permanent incisor teeth were selected. The crowns of the teeth were sectioned and the roots were separated longitudinally to get 240 specimens. These specimens were then divided into six groups a...

Evidence is presented indicating that the carrier-mediated uptake of 3-deoxy-2-oxo-D-gluconate and D-glucuronate in Escherichia coli K12 is driven by the deltapH and deltapsi components of the protonmotive force. 1. Approximately two protons enter the cells with each sugar molecule, independent of the sugar and the strain used. 2. In respiring cells, the magnitude of the pH gradient alone, as m...

The small amount of carbohydrate available in our recent studies (1) of pentose formation from 6-phosphogluconic .acid has led us to examine microbiological analytical tools. In earlier studies on uranic acid metabolism in an Escherichia coli strain (2), it had become clear that the adaptive synthesis of new enzyme systems in response to the presence of specific substrates is extraordinarily sp...

Background: Aphthous ulcer is seen to be one of the most commonly occurring ailments found among patients that dentists may come across on a daily basis. Taking into consideration agents have been used for treatment aphthous stomatitis, it would seem advisable apply agent safest and has least toxic properties can bring about symptomatic relief applied topically. These days, there are few reliab...

Decreased biomass growth in iron (Fe)-limited Pseudomonas is generally attributed to downregulated expression of Fe-requiring proteins accompanied by an increase in siderophore biosynthesis. Here, we applied a stable isotope-assisted metabolomics approach to explore the underlying carbon metabolism in glucose-grown Pseudomonas putida KT2440. Compared to Fe-replete cells, Fe-limited cells exhibi...