abstract：:Cellulose derivatives are commonly used as gelling agents in topical and ophthalmic drug formulations. During the course of manufacturing, cellulose derivatives are believed to generate free radicals. These free radicals may degrade the gelling agent, leading to lower viscosity. Free radicals also may react with the a...

journal_title：Journal of pharmaceutical sciences

authors： Basumallick L,Ji JA,Naber N,Wang YJ

更新日期：2009-07-01 00:00:00

abstract：:Mebendazole (MBZ) is a common benzimidazole anthelmintic that exists in three different polymorphic forms, A, B, and C. Polymorph C is the pharmaceutically preferred form due to its adequated aqueous solubility. No single crystal structure determinations depicting the nature of the crystal packing and molecular confor...

journal_title：Journal of pharmaceutical sciences

authors： Martins FT,Neves PP,Ellena J,Camí GE,Brusau EV,Narda GE

更新日期：2009-07-01 00:00:00

abstract：:Platinum-based anticancer agents such as cisplatin and carboplatin are in widespread clinical use but associated with many side effects. Improving the delivery of cytotoxic platinum compounds may lead to reduced side effects and achieve greater efficacy at lower doses. Polymer-based therapeutics have been investigated...

journal_title：Journal of pharmaceutical sciences

authors： Haxton KJ,Burt HM

更新日期：2009-07-01 00:00:00

abstract：:Amorphous dispersions provide an excellent way of increasing dissolution rates of poorly soluble drugs, but there may be concerns about stability. One way of assessing the stability of amorphous is the study of relaxation. In this study the relaxation at the surface of amorphous solid dispersions (SDs) was evaluated u...

journal_title：Journal of pharmaceutical sciences

authors： Hasegawa S,Ke P,Buckton G

更新日期：2009-06-01 00:00:00

abstract：:While the number of clinical trials has continued to grow by about 20% in the past six months, no corresponding growth in product approval by the food and drug administration is seen or anticipated in the near future. Late-stage clinical failures due to lack of efficacy or toxicity continues to be a challenge. The opt...

journal_title：Journal of pharmaceutical sciences

authors： Ho RJ,Chien JY

更新日期：2009-06-01 00:00:00

abstract：:Cholesterol promotes basal and verapamil-induced ATPase activity of P-glycoprotein (P-gp). We investigated whether these effects are related to each other and to the impact of the sterol on bilayer fluidity and verapamil membrane affinity. P-gp was reconstituted in egg-phosphatidylcholine (PhC) liposomes with or witho...

journal_title：Journal of pharmaceutical sciences

authors： Belli S,Elsener PM,Wunderli-Allenspach H,Krämer SD

更新日期：2009-05-01 00:00:00

abstract：:Papers and patents that deal with polymorphism (crystal systems for which a substance can exist in structures characterized by different unit cells, but where each of the forms has exactly the same elemental composition) and solvatomorphism (systems where the crystal structures of the substance are defined by differen...

journal_title：Journal of pharmaceutical sciences

authors： Brittain HG

更新日期：2009-05-01 00:00:00

abstract：:Citric acid anhydrate (CAA) and paracetamol (PARA), prepared as crystalline physical mixtures and as amorphous blends, were studied using (13)C solid-state cross polarization magic angle spinning (CPMAS) NMR. Amorphous blends showed significant line broadening from the conformational distribution as compared to the cr...

journal_title：Journal of pharmaceutical sciences

authors： Schantz S,Hoppu P,Juppo AM

更新日期：2009-05-01 00:00:00

abstract：:The purpose of the present study was to examine whether the intestinal absorption of low-permeability drugs could be improved by utilization of the intestinal influx transporter PEPT1. We investigated whether peptide derivatives of poorly absorbable nonamino acid-like drugs might be substrates of PEPT1, using rebamipi...

journal_title：Journal of pharmaceutical sciences

authors： Kikuchi A,Tomoyasu T,Tanaka M,Kanamitsu K,Sasabe H,Maeda T,Odomi M,Tamai I

更新日期：2009-05-01 00:00:00

abstract：:There is a recognized need for new approaches to understand unit operations with pharmaceutical relevance. A method for analyzing complex interactions in experimental data is introduced. Higher-order interactions do exist between process parameters, which complicate the interpretation of experimental results. In this ...

journal_title：Journal of pharmaceutical sciences

authors： Naelapää K,Allesø M,Kristensen HG,Bro R,Rantanen J,Bertelsen P

更新日期：2009-05-01 00:00:00

abstract：:Vaults, at 13 MDa, are the largest ribonucleoprotein particles known. In vitro, expression of the major vault protein (MVP) alone in Sf9 insect cells results in the production of recombinant particles with characteristic vault structure. With the ultimate goal of using recombinant vaults as nanocapsules for the delive...

journal_title：Journal of pharmaceutical sciences

authors： Esfandiary R,Kickhoefer VA,Rome LH,Joshi SB,Middaugh CR

更新日期：2009-04-01 00:00:00

abstract：:Solid solutions of felodipine with EUDRAGIT E and EUDRAGIT E/NE were shown to dramatically increase the dissolution rate of felodipine in biorelevant media. Of the two polymer systems, extrudates containing 5% EUDRAGIT NE showed a faster dissolution rate and less recrystallization (no precipitation within 2 h). Althou...

journal_title：Journal of pharmaceutical sciences

authors： Nollenberger K,Gryczke A,Meier Ch,Dressman J,Schmidt MU,Brühne S

更新日期：2009-04-01 00:00:00

abstract：:The University of British Columbia (UBC) became the first university in Canada to develop a strategy for enhancing global access to its technologies. UBC's University-Industry Liaison Office, in collaboration with the UBC chapter of Universities Allied for Essential Medicines (UAEM), established a mandate and develope...

journal_title：Journal of pharmaceutical sciences

authors： Wasan KM,Thornton SJ,Bell I,Goulding RE,Gretes M,Gray AP,Hancock RE,Campbell B

更新日期：2009-03-01 00:00:00

abstract：:Quantification analysis with near-infrared (NIR) spectroscopy typically requires utilizing chemometric techniques, such as partial least squares (PLS) method, to achieve the desired selectivity. This article points out a major limitation of these statistical-based calibration methods. The limitation is that the techni...

journal_title：Journal of pharmaceutical sciences

authors： Xiang D,Berry J,Buntz S,Gargiulo P,Cheney J,Joshi Y,Wabuyele B,Wu H,Hamed M,Hussain AS,Khan MA

更新日期：2009-03-01 00:00:00

abstract：:Locally recurrent prostate cancer can lead to significant morbidity, metastasis, and even death. The objective of this study was to evaluate the efficacy of an injectable polymeric paste formulation containing paclitaxel against orthotopic prostate tumor in rats. The Dunning R-3327 rat prostate adenocarcinoma is exper...

journal_title：Journal of pharmaceutical sciences

authors： Shikanov S,Shikanov A,Gofrit O,Nyska A,Corn B,Domb AJ

更新日期：2009-03-01 00:00:00

abstract：:Although acute renal failure (ARF) has been an area of extensive research in recent decades, our understanding of ARF is far from complete. Organic cations (OCs) are primarily excreted via vectorial transport by various renal organic cation transporters (OCTs). It is reasonable to assume that ARF may alter the express...

journal_title：Journal of pharmaceutical sciences

authors： Shim WS,Park JH,Ahn SJ,Han L,Jin QR,Li H,Choi MK,Kim DD,Chung SJ,Shim CK

更新日期：2009-02-01 00:00:00

abstract：:In this study, the cytotoxicity of doxorubicin (DOX) loaded stearic acid grafted chitosan oligosaccharide (CSO-SA) micelles and its core modified drug delivery systems were investigated in vitro. The in vitro drug release experiments using cellular culture medium, Roswell Park Memorial Institute 1640 (RPMI-1640) mediu...

journal_title：Journal of pharmaceutical sciences

authors： Ye YQ,Chen FY,Wu QA,Hu FQ,Du YZ,Yuan H,Yu HY

更新日期：2009-02-01 00:00:00

abstract：:The use of second generation cationic liposomes to deliver cytotoxic drugs to solid tumors is a rational and promising therapeutic approach, given the natural affinity of cationic carrier molecules for the tumor microvasculature. Cationic liposomal therapeutics are effective in the treatment of cancers that are resist...

journal_title：Journal of pharmaceutical sciences

authors： Campbell RB,Ying B,Kuesters GM,Hemphill R

更新日期：2009-02-01 00:00:00

abstract：:The preformulation, solubilization and pharmacokinetic evaluation of antalarmin, a stress inhibitor, have been conducted. Antalarmin has a poor water solubility of less than 1 microg/mL and is weakly basic with an experimentally determined pK(a) of 5.0. Multiple solubilization approaches including pH-control either al...

journal_title：Journal of pharmaceutical sciences

authors： Sanghvi R,Mogalian E,Machatha SG,Narazaki R,Karlage KL,Jain P,Tabibi SE,Glaze E,Myrdal PB,Yalkowsky SH

更新日期：2009-01-01 00:00:00

abstract：:The objective of this study was to determine the relative importance of metabolism by cytochrome P450 (CYP) enzymes versus efflux by P-glycoprotein (P-gp) in restricting the intestinal mucosal permeation of cyclic prodrugs (AOA-DADLE, CA-DADLE, OMCA-DADLE) of the opioid peptide DADLE (H-Tyr-D-Ala-Gly-Phe-D-Leu-OH). AO...

journal_title：Journal of pharmaceutical sciences

authors： Ouyang H,Chen W,Andersen TE,Steffansen B,Borchardt RT

更新日期：2009-01-01 00:00:00

abstract：:In recent years, controlled release coatings, comprised of drug-polymer composites, have been integrated with medical devices, improving device functionality and performance. However, relationships between material properties, manufacturing environment, composite (micro)structure, and subsequent release kinetics are n...

journal_title：Journal of pharmaceutical sciences

authors： Saylor DM,Kim CS,Patwardhan DV,Warren JA

更新日期：2009-01-01 00:00:00

abstract：:This article describes a procedure to facilitate scale-up for the primary drying phase of lyophilization using a combination of empirical testing and numerical modeling. Freeze dry microscopy is used to determine the temperature at which lyophile collapse occurs. A laboratory scale freeze-dryer equipped with manometri...

journal_title：Journal of pharmaceutical sciences

authors： Kramer T,Kremer DM,Pikal MJ,Petre WJ,Shalaev EY,Gatlin LA

更新日期：2009-01-01 00:00:00

abstract：:Most of the global healthcare issues facing us--from expanding access to care, to providing medical and dental care in the aftermath of disasters--are far too complex for any single sector to successfully solve. Industry, the healthcare profession, government, academia and non-governmental organizations (NGOs) are all...

journal_title：Journal of pharmaceutical sciences

authors： Bergman SM

更新日期：2008-12-01 00:00:00

abstract：:Health interventions developed for wealthy nations are difficult to introduce in developing countries due to a lack of sufficient technological, financial, political, or infrastructural resources. Increasingly, however, product developers are creating new technologies that meet the needs of low-resource settings. Expe...

journal_title：Journal of pharmaceutical sciences

authors： Harner-Jay C,Sherris J

更新日期：2008-12-01 00:00:00

abstract：:In the present work, authors produced tablets of anhydrous sodium naproxen by wet granulation using a high-shear mixer-granulator. Drug hydrated to the tetrahydrated form, as observed by X-ray powder diffractometry. After wet granulation, authors then performed two different drying procedures, obtaining granules of di...

journal_title：Journal of pharmaceutical sciences

authors： Di Martino P,Malaj L,Censi R,Martelli S

更新日期：2008-12-01 00:00:00

abstract：:17-(allylamino)-17-demethoxygeldanamycin (17AAG) is a benzoquinone ansamycin Hsp90 inhibitor which has promising anticancer activity in vitro, in animal models and in clinical trials. 17AAG has poor water-solubility which is a potential problem for clinical formulation. The hydroquinone derivative of 17AAG, 17AAG hydr...

journal_title：Journal of pharmaceutical sciences

authors： Guo W,Siegel D,Ross D

更新日期：2008-12-01 00:00:00

abstract：:The objective was to examine the influence of Pluronic block-copolymers on the interaction between the drug efflux transporter, P-glycoprotein and HIV-1 protease inhibitors (PIs). The ATPase assay determined the effect of various Pluronics on PI-stimulated P-gp ATPase activity. Cellular accumulation studies were condu...

journal_title：Journal of pharmaceutical sciences

authors： Shaik N,Pan G,Elmquist WF

更新日期：2008-12-01 00:00:00

abstract：:Single crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), and solid-state NMR (SSNMR) techniques are used to analyze the structures of two nonsolvated polymorphs of {4-(4-chloro-3-fluorophenyl)-2-[4-(methyloxy)phenyl]-1,3-thiazol-5-yl} acetic acid. These polymorphs are enantiotropically-related with a...

journal_title：Journal of pharmaceutical sciences

authors： Vogt FG,Katrincic LM,Long ST,Mueller RL,Carlton RA,Sun YT,Johnson MN,Copley RC,Light ME

更新日期：2008-11-01 00:00:00

abstract：:This work was to investigate the effects of particle size and paddle speed on the particle diffusional layer thickness h(app) in a USP dissolution apparatus II. After the determination of the powder dissolution rates of five size fractions of fenofibrate, including <20, 20-32, 32-45, 63-75, and 90-106 microm, the pres...

journal_title：Journal of pharmaceutical sciences

authors： Sheng JJ,Sirois PJ,Dressman JB,Amidon GL

更新日期：2008-11-01 00:00:00

abstract：:Microparticles are of considerable interest for drug delivery, vaccination and diagnostic imaging. In order to obtain microparticles with long circulation times, or to provide the prerequisite for tissue specific targeting through decoration with suitable ligands, their surfaces need to be modified such that they beco...

journal_title：Journal of pharmaceutical sciences

authors： Wattendorf U,Merkle HP

更新日期：2008-11-01 00:00:00

abstract：:Transformation of polymorph I of clopidogrel hydrogen sulfate (CHS) to polymorph II of CHS during the crystallization was monitored by using in situ measurement of ultrasonic velocity. Drowning-out crystallization using methanol as a solvent and isopropyl alcohol as nonsolvent was carried out. The polymorphs were iden...

journal_title：Journal of pharmaceutical sciences

authors： Kim HJ,Kim KJ

更新日期：2008-10-01 00:00:00

abstract：:Angiogenesis--process of new blood-vessel growth from existing vasculature--is an integral part of both normal developmental processes and numerous pathologies such as cancer, ischemic diseases and chronic inflammation. Angiogenesis plays a crucial role facilitating tumour growth and the metastatic process, and it is ...

journal_title：Journal of pharmaceutical sciences

authors： Mauriz JL,González-Gallego J

更新日期：2008-10-01 00:00:00

abstract：:The objective of this work was to delineate the contribution of thermodynamic activities of ionized and unionized species on buccal drug permeation. The flux and permeability of a model acidic (nimesulide) and basic (bupivacaine) drug were determined across porcine buccal mucosa at different pH conditions. Thermodynam...

journal_title：Journal of pharmaceutical sciences

authors： Kokate A,Li X,Singh P,Jasti BR

更新日期：2008-10-01 00:00:00

abstract：:This article presents a theoretical model of transdermal drug delivery from an emulsion-type vehicle that addresses the vehicle heterogeneity and incorporates the prediction of drug transport parameters as function of the vehicle composition. The basic mass transfer model considers interfacial and diffusion resistance...

journal_title：Journal of pharmaceutical sciences

authors： Bernardo FP,Saraiva PM

更新日期：2008-09-01 00:00:00

abstract：:The ability to successfully formulate and manufacture therapeutic protein dosage forms requires a thorough understanding of their physico-chemical properties. Proteins are inherently dynamic molecules of marginal stability. These properties present unique challenges to the pharmaceutical scientist attempting to develo...

journal_title：Journal of pharmaceutical sciences

authors： Kamerzell TJ,Middaugh CR

更新日期：2008-09-01 00:00:00

abstract：:Chitosan salts are being investigated as materials for bacterially triggered colonic drug delivery, via the oral route, based on the assumption that they will be degraded by the enzymes produced by the human colonic bacteria. The actual susceptibility of chitosan to these enzymes is, however, unclear. The digestion of...

journal_title：Journal of pharmaceutical sciences

authors： McConnell EL,Murdan S,Basit AW

更新日期：2008-09-01 00:00:00

abstract：:Single crystal structure experiments revealed that the orthorhombic needles of Ciclesonide crystallized in P2(1)2(1)2(1) space group with four independent molecules in the unit cell. Amorphous Ciclesonide was prepared by lyophilization and characterized in comparison with crystalline material by differential scanning ...

journal_title：Journal of pharmaceutical sciences

authors： Feth MP,Volz J,Hess U,Sturm E,Hummel RP

更新日期：2008-09-01 00:00:00

abstract：:The melt from the usual monoclinic phase (Phase I) of biclotymol (T(fusI) = 400.5 +/- 1.0 K, Delta(fus)H(I) = 36.6 +/- 0.9 kJ mol(-1)) recrystallizes into another phase, Phase II, that melts at T(fusII) = 373.8 +/- 0.2 K (Delta(fus)H(II) = 28.8 +/- 1.0 kJ mol(-1)). The transformation of Phase II into Phase I is found ...

journal_title：Journal of pharmaceutical sciences

authors： Céolin R,Tamarit JL,Barrio M,López DO,Nicolaï B,Veglio N,Perrin MA,Espeau P

更新日期：2008-09-01 00:00:00

abstract：:Nosocomial diarrhea and pseudomembranous colitis causing toxins A and B from Clostridium difficile were studied at pH 5-8 and over the temperature range of 10-85 degrees C. The proteins were crosslinked with formaldehyde to inactivate them to toxoid forms and permit their use as vaccines. Structural changes and aggreg...

journal_title：Journal of pharmaceutical sciences

authors： Salnikova MS,Joshi SB,Rytting JH,Warny M,Middaugh CR

更新日期：2008-09-01 00:00:00

abstract：:Knowledge of slip or cleavage planes can facilitate the fundamental understanding of mechanical properties of organic crystals important to pharmaceutical operations, such as tableting and milling. Slip/cleavage planes were frequently assigned based on attachment energy calculation. These crystallographic planes can a...

journal_title：Journal of pharmaceutical sciences

authors： Sun CC,Kiang YH

更新日期：2008-08-01 00:00:00