RÉSUMÉ
Helicobacter pylori [H. pylori] infections are very serious health problem that are further worsened by increasing/developing resistance to the current antibiotics. Therefore, new therapeutic agents are needed for H. pylori eradication. Use of a CD46 derived peptide [P3] as bactericidal agent against H. pylori has shown high activity rate in vivo and this study examines the changes in H. pylori features in response to effect of P3 treatment.AGS cells were infected with H. pylori wild type strain 67:21 and its mice passage strains [P3 treated and untreated strains] and further examined using immunoblotting assay, FACS and Urease activity analysis. Comparatively we found increased level of Urease alpha subunit A [UreA] and alkyl hydroperoxide reductase C [AhpC] proteins for P3 treated strain of H. pylori than its wild type or untreated strain after infection of AGS cells. Conclusion These results suggest that there might be a high rate of adherence to host cells for the P3 treated passage strain than untreated or wild type strain. Our findings also indicate that either adhesins are being changed or H. pylori interaction to the host cells is affected after P3 treatment
RÉSUMÉ
The current study was undertaken to compare the binding potential of Prunus armeniaca L. and Prunus domestica L. gums in tablets' formulations. Tablet batches [F-1 to F-9] were prepared Diclofenac sodium as model drug using 5%, 7.5% and 10% of each Prunus armeniaca L., Prunus domestica L. gums as binder. PVP K30 was used as a st and ard binder. Magnesium stearate was used as lubricant. Flow properties of granules [like bulk density, tapped density, Carr's index, Hausner's ratio, angle of repose] as well as the physical parameters of compressed tablets including hardness, friability, thickness and disintegration time were determined. Flow parameters of granules of all the batches were found good. Physical parameters [drug content, weight variation, thickness, hardness, friability, disintegration time] of formulated tablets were found within limit when tested. The dissolution studies showed that tablets formulations containing each Prunus domestica showed better binding capacity compared to Prunus armeniaca gum. The binding potential increased as the concentration of gums increased. The FTIR spectroscopic investigation showed that the formulations containing plant gum are compatible with the drug and other excipients used.