Phloridzin
Mostrando 13-24 de 26 artigos, teses e dissertações.
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13. Trehalase: A New Pollen Enzyme
Pollen from 5 plant species (Lycopersicon pimpinellifolium Mill., Hermerocallis minor Mill., Galtonia condicans Decne., Camellia japonica L., and Lathyrus odoratus L.) representing 4 families germinated well in media containing trehalose as the sole carbon source. Data are presented indicating that pollen metabolized this disaccharide for germination and sub
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14. Factors governing the transepithelial potential difference across the proximal tubule of the rat kidney.
Previous measurements of the transepithelial potential difference (PD) of the proximal tubule have yielded widely conflicting values (range -20 to +3 mV). In a recent study, Kokko has demonstrated that the PD of the in vitro perfused isolated proximal tubule of the rabbit varies in a predictable way from -6 to +3 mV, depending on the concentration of chlorid
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15. Fluid absorption by rat lung in situ: pathways for sodium entry in the luminal membrane of alveolar epithelium.
1. The purpose of the investigation was to characterize the luminal membrane and the paracellular pathway of rat lung alveolar epithelium. Experiments were performed on lungs in situ instilled with isotonic, buffered Ringer solution and perfused with blood from a donor rat using cross-circulation technique. 2. The rate of active Na+ transport was 4.4 pmol/(c
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16. Secretin release from the isolated, vascularly perfused pig duodenum.
1. A method for the isolation and vascular perfusion of the porcine pancreas and duodenum was developed. 2. The oxygen consumption of the whole preparation was similar to that of the pancreas alone, and since the duodenal arteriovenous oxygen deficit was similar to that of the total preparation, it was concluded that the duodenum respired adequately. 3. The
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17. A rabbit jejunal isolated enterocyte preparation suitable for transport studies.
A method is described for isolating viable enterocytes from rabbit jejunum. Estimates of sucrase and gamma-glutamyl transferase activities in cells isolated by this method suggest that they originate from the upper villus only. Isolated cells accumulate both alpha-methyl-D-glucoside and alanine, maintaining high intracellular concentrations for at least 60 a
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18. Involvement of Stromal ATP in the Light Activation of Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase in Intact Isolated Chloroplasts
Light activation of ribulose-1,5-bisphosphate carboxylase/oxygenase (rubisco) and stromal ATP content were measured in intact isolated spinach chloroplasts. Treatments which decreased stromal ATP, such as incubation with the ATP analog β,γ-methylene adenosine triphosphate or with the energy transfer inhibitor phloridzin inhibited the light activation of ru
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19. Apple phytochemicals and their health benefits
Evidence suggests that a diet high in fruits and vegetables may decrease the risk of chronic diseases, such as cardiovascular disease and cancer, and phytochemicals including phenolics, flavonoids and carotenoids from fruits and vegetables may play a key role in reducing chronic disease risk. Apples are a widely consumed, rich source of phytochemicals, and e
BioMed Central.
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20. Cell association and invasion of Caco-2 cells by Campylobacter jejuni.
Adherence and invasion studies were conducted in monolayers of Caco-2 cells. Three-day-old monolayers were inoculated with Campylobacter jejuni 81-176 at a bacterium/cell ratio of 1,000:1. Saturation studies demonstrated time- and dose-dependent saturation curves for C. jejuni cell association and invasion into Caco-2 cells. Electron microscopy revealed intr
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21. Respiration in Blue-Green Algae
The low rate of endogenous respiration exhibited by the blue-green algae Anacystis nidulans and Phormidium luridum was not increased by the addition of respiratory substrates. However, endogenous respiration was inhibited by low concentrations of cyanide and by high carbon monoxide tensions. In addition, the uncouplers dinitrophenol and carbonyl cyanide p-tr
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22. Cloning and Expression of a Phloretin Hydrolase Gene from Eubacterium ramulus and Characterization of the Recombinant Enzyme
Phloretin hydrolase catalyzes the hydrolytic C-C cleavage of phloretin to phloroglucinol and 3-(4-hydroxyphenyl)propionic acid during flavonoid degradation in Eubacterium ramulus. The gene encoding the enzyme was cloned by screening a gene library for hydrolase activity. The insert of a clone conferring phloretin hydrolase activity was sequenced. Sequence an
American Society for Microbiology.
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23. Sugar transport in giant axons of Loligo.
1. The transport of glucose and a number of other sugars has been investigated in the giant axons of Loligo forbesi. 2. Glucose and 2-deoxy-D-glucose are phosphorylated by squid axons, alpha-methyl-D-glucopyranoside and 3-O-methylglucose are not metabolized. All four sugars can diffuse freely in axoplasm. 3. Sugar uptake in squid axons is a passive, saturabl
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24. Functional coupling between the active transport of glucose and the secretion of intestinal neurotensin in rats.
1. In this study, the mechanisms involved in the release of neurotensin-like immunoreactivity (NTLI) by glucose were investigated with the isolated, vascularly perfused rat jejunoileum preparation. 2. Luminal infusion of glucose (1-250 mM) produced a sharp and sustained release of NTLI in the intestinal venous effluent. The first significant response was obs