https://www.syncsci.com/journal/JPBR/issue/feed Journal of Pharmaceutical and Biopharmaceutical Research 2022-10-23T09:55:02+08:00 Snowy Wang snowy.wang@syncsci.com Open Journal Systems <p><a title="Registered Journal" href="https://www.reviewercredits.com/user/j-pharm-biopharm-res" target="_blank" rel="noopener"><img class="journalreviewercredits" src="/journal/public/site/images/jasongong/Logo_ReviewerCredits-journal.jpg" alt="ReviewerCredits" align="right"></a><strong>Journal of Pharmaceutical and Biopharmaceutical Research (JPBR)</strong> (ISSN:2630-533X)&nbsp; is an open access, continuously published, international, refereed&nbsp; journal. The aim of the journal is to provide the authors a timely and peer reviewed process for evaluation and publication of their manuscripts. All articles submitted to JPBR will undergo a rigorous double-blind peer review, and all published articles can be downloaded and read for free. JPBR will pay wide attention to the trends in related fields and insist on publishing original research work of highest quality.</p> <p><strong>JPBR</strong> publishes high quality original research work, reviews, and short communications in the following areas:<br><strong>Pharmaceutical Sciences:<br></strong>• Pharmaceutics<br> • Pharmacology and Toxicology<br> • Medicinal Chemistry<br> • Physical Pharmacy<br> • Pharmaceutical Analysis<br> • Chromatography and Hyphenated Techniques<br> • Pharmacognosy and Phytochemistry<br> • Nanotechnology for Pharmaceutical Drug Formulations<br><strong>Biopharmaceutical Sciences:</strong> <br> • Biochemistry<br> • Biotechnology<br> • Molecular Biology<br> • Immunology and Microbiology</p> https://www.syncsci.com/journal/JPBR/article/view/JPBR.2022.02.002 Therapeutic efficacies of nano carriers in delivering drugs 2022-10-23T09:55:02+08:00 Bailey Krueger editor@syncsci.com Taylor Frazier editor@syncsci.com Sheila Galbreath editor@syncsci.com Tarun Goswami tarun.goswami@wright.edu <p>The drug release rates of poorly soluble medications such as doxorubicin has been investigated in this paper. Since the drug was fixed, different carriers used to deliver it and their release rates compiled from literature were evaluated in this paper. Even though targeting of drugs is very important in drug delivery, it is not within the scope of this paper. However, functionalization of the carrier may provide this benefit, those constructs are included for comparison in terms of hybrid constructs. Dendrimer, micelles and hybrid constructs used in the delivery of doxorubicin compared in this paper with respect to carrier size and drug loading. Assuming that the dissolution follows a slow release, 40-50% of the drug in the phase I representing a sudden or the burst release, followed by a steady release of 50-60% of the drug in phase II, not all the carriers and their sizes exhibited this behavior. Carriers and hybrid constructs 38nm size were more effective where phases I and II observed, however, as the size decreased to 34 nm or increased above 40nm, minimal release occurred meaning the carriers were too big to penetrate the vasculature permeability. Nano-carriers, dendrimers, micelle, hybrid dendrimers and micelles were found to be effective with the carrier manufacturing, generation, polymer, molecular weight of the carrier and other parameters. The release rate of doxorubicin was found to be effective with dendrimers together with hybrid dendrimer exhibiting a bilinear behavior. Micelles 20nm were more effective representing 60% of release in 10 hours followed by additional 25% in 35 hours exhibiting a bilinear behavior. Size greater than 20nm resulted in slow release reaching less than 10 to 40% of drug. Several drugs exhibited multiple slopes in their kinetics when micelle was used. The therapeutic efficacy of hybrid micelle was superior to other nano-carriers.</p> 2022-10-17T12:03:21+08:00 ##submission.copyrightStatement## https://www.syncsci.com/journal/JPBR/article/view/JPBR.2022.02.001 Effect of experimental hyperglycemia on intestinal elimination and biliary excretion of ibuprofen enantiomers in hyperglycemic rats 2022-10-04T13:36:51+08:00 Hawsar Othman Mohamed hawsar.mohamed@univsul.edu.iq Attila Almási Attila.almasi@aok.pte.hu Pal Perjesi pal.perjesi@gytk.pte.hu <p>Diabetic complications are mostly due to hyperglycemia. Hyperglycemia is reported to be associated with oxidative stress. It can result in changes in the activities of drug-metabolizing enzymes and membrane-integrated transporters, which can modify the fate of drugs and other xenobiotics. An <em>in vivo</em> intestinal perfusion model was used to investigate how experimental hyperglycemia affects intestinal elimination and biliary excretion of ibuprofen enantiomers in the rat. Experimental diabetes was induced by intravenous (i.v.) administration of streptozotocin. The intestinal perfusion medium contained 250 µM racemic ibuprofen. A validated isocratic chiral HPLC method with UV detection was developed to determine the amount of the two enantiomers in the intestinal perfusate and the bile. The results indicated that experimental diabetes doesn’t cause a statistically significant difference in the disappearance of ibuprofen enantiomers from the small intestine. Analysis of the bile samples detected only the (<em>S</em>)-IBP enantiomer. Excretion of the ibuprofen enantiomer to the bile decreased in experimental diabetes. The observed changes can affect the pharmacokinetics of drugs administered in hyperglycemic individuals.</p> 2022-10-04T13:34:02+08:00 ##submission.copyrightStatement##