Applications of circular dichroism (CD) for structural analysis of proteins: qualification of near- and far-UV CD for protein higher order structural analysis.

abstract：:Synthetic peptides corresponding to the variable tandem repeat domain of the cancer-associated antigen MUC1 mucin are candidates for cancer vaccines. In our investigation mice were immunized via subcutaneous injection with poly(d,l-lactic-co-glycolic acid) (PLGA) microspheres containing a MUC1 mucin peptide. It was hy...

journal_title：Journal of pharmaceutical sciences

authors： Newman KD,Sosnowski DL,Kwon GS,Samuel J

更新日期：1998-11-01 00:00:00

abstract：:A stereoselective and sensitive method for the determination of nilvadipine, a new dihydropyridine calcium antagonist, in human plasma was developed. An internal standard, the deuterated analogue of racemic nilvadipine, was added to the plasma and extracted with an n-hexane:ethyl acetate (92.5:7.5) mixture under alkal...

journal_title：Journal of pharmaceutical sciences

authors： Tokuma Y,Fujiwara T,Noguchi H

更新日期：1987-04-01 00:00:00

abstract：:Tissue damage caused by subcutaneous and intramuscular administration of three phenytoin prodrugs to rats was assessed. Since two of the prodrugs caused significant irritation, only 3-(hydroxymethyl)-5,5-diphenylhydantoin disodium phosphate ester might be useful as a nonirritant phenytoin prodrug suitable for parenter...

journal_title：Journal of pharmaceutical sciences

authors： Varia SA,Stella VJ

更新日期：1984-08-01 00:00:00

abstract：:In relation to drug release properties the lateral and rotational mobility of two drugs and one drug mimic in photopolymerized poly(ethylene glycol) diacrylate (PEGDA) networks were investigated by nuclear magnetic resonance as a function of the network cross-link density and temperature. The network mesh size affects...

journal_title：Journal of pharmaceutical sciences

authors： Tomić K,Veeman WS,Boerakker M,Litvinov VM,Dias AA

更新日期：2008-08-01 00:00:00

abstract：:A spectrodensitometric assay was developed for propranolol based on measurement of the absorbance of the drug on silica gel plates irradiated at 822 nm. Quantities as low as 0.10 microgram can be detected, and a linear relationship was obtained between 0.010 and 0.400 microgram. The percent recovery from plasma spiked...

journal_title：Journal of pharmaceutical sciences

authors： Hadzija BW,Mattocks AM

更新日期：1978-09-01 00:00:00

abstract：:A novel in-line technique utilising pulsed terahertz radiation for direct measurement of the film coating thickness of individual tablets during the coating process was previously developed and demonstrated on a production-scale coater. Here, we use this technique to monitor the evolution of tablet film coating thickn...

journal_title：Journal of pharmaceutical sciences

authors： Lin H,May RK,Evans MJ,Zhong S,Gladden LF,Shen Y,Zeitler JA

更新日期：2015-08-01 00:00:00

abstract：:The presence of subvisible particles in formulations of therapeutic proteins is a risk factor for adverse immune responses. Although the immunogenic potential of particulate contaminants likely depends on particle structural characteristics (e.g., composition, size, and shape), exact structure-immunogenicity relations...

journal_title：Journal of pharmaceutical sciences

authors： Daniels AL,Randolph TW

更新日期：2018-05-01 00:00:00

abstract：:Nonsteroidal anti-inflammatory drugs (NSAIDs) are among the most frequently used drugs in the world, primarily for symptoms associated with osteoarthritis and other chronic musculoskeletal conditions. However, adverse effects caused by oral administration, such as local or systemic disturbance in the gastrointestinal ...

journal_title：Journal of pharmaceutical sciences

authors： Cheng Y,Man N,Xu T,Fu R,Wang X,Wang X,Wen L

更新日期：2007-03-01 00:00:00

abstract：:The reaction kinetics of blue tetrazolium with selected arylhydrazines were investigated under pseudo-first-order conditions. The reaction rate constants were obtained at various temperatures, and the enthalpy (8.4-11.2 kcal/mole) and entropy (-38--45 eu) of activations were calculated. A Hammett plot yielded a straig...

journal_title：Journal of pharmaceutical sciences

authors： Biehl ER,Wooten R,Kenner CT,Graham RE

更新日期：1978-07-01 00:00:00

abstract：:Lipids were extracted from human stratum corneum and the remaining corneocytes were reaggregated with different lyotropic liquid crystals. Water transport through the reaggregated stratum corneum was determined using a diffusion chamber according to Smith and Blank. The permeability constant for the reaggregated strat...

journal_title：Journal of pharmaceutical sciences

authors： Kayali I,Suhery T,Friberg SE,Simion FA,Rhein LD

更新日期：1991-05-01 00:00:00

abstract：:The reaction of chlorthalidone with methanol to give the corresponding methyl ether was investigated. The kinetics are pseudo-first-order in chlorthalidone, but the observed pseudo-first-order rate constants show an unexpected dependence on the initial chlorthalidone concentration, attributable to the presence of trac...

journal_title：Journal of pharmaceutical sciences

authors： Pandit NK,Hinderliter JS

更新日期：1985-08-01 00:00:00

abstract：:The correlation between dynamic surface properties of drug molecules and drug absorption in two common in vitro models of the intestinal wall (Caco-2 monolayers and rat intestinal segments) has been investigated. A homologous series of beta-adrenoreceptor antagonists were used as model compounds. Dynamic molecular sur...

journal_title：Journal of pharmaceutical sciences

authors： Palm K,Luthman K,Ungell AL,Strandlund G,Artursson P

更新日期：1996-01-01 00:00:00

abstract：:The progress in continuous downstream manufacturing of oral solid doses demands effective real-time process management, with monitoring at its core. This study evaluates the feasibility of using a commercial sensor to measure the mass flow rate of the particulates, a critical process variable in continuous manufacturi...

journal_title：Journal of pharmaceutical sciences

authors： Ganesh S,Troscinski R,Schmall N,Lim J,Nagy Z,Reklaitis G

更新日期：2017-12-01 00:00:00

abstract：:The effect of the oral dosing volume (DV) on both gastric emptying and intestinal absorption was examined by analyzing the gastrointestinal disposition of a model solute, L-glucose, in rats. The amount of 14C-labeled L-glucose in the gastric and intestinal contents of sacrificed rats was measured at various times afte...

journal_title：Journal of pharmaceutical sciences

authors： Yuasa H,Numata W,Ozeki S,Watanabe J

更新日期：1995-04-01 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：:Montelukast, a cysteinyl leukotriene type 1 receptor antagonist, exhibits secondary anti-inflammatory properties when used at higher concentrations. Low-molecular-weight heparin (LMWH) evokes pronounced anti-inflammatory effects by interrupting leukocyte adhesion and migration. We hypothesized that inhalable particles...

journal_title：Journal of pharmaceutical sciences

authors： Patel B,Rashid J,Gupta N,Ahsan F

更新日期：2017-04-01 00:00:00

abstract：:The physical stability of an immunoglobulin G4 monoclonal antibody (mAb) upon dilution into intravenous (i.v.) bags containing 0.9% saline was examined. Soluble aggregates and subvisible particles were observed by size-exclusion high-performance liquid chromatography (SE-HPLC) and light obscuration when formulated wit...

journal_title：Journal of pharmaceutical sciences

authors： Kumru OS,Liu J,Ji JA,Cheng W,Wang YJ,Wang T,Joshi SB,Middaugh CR,Volkin DB

更新日期：2012-10-01 00:00:00

abstract：:Surface adsorption of two monoclonal antibodies (mAb1 and mAb2), with widely different hydrophobicity and self-association behavior in solution, was examined by quartz crystal microbalance with dissipation monitoring to understand how adsorption and protein self-interactions near the surface are impacted by their intr...

journal_title：Journal of pharmaceutical sciences

authors： Oom A,Poggi M,Wikström J,Sukumar M

更新日期：2012-02-01 00:00:00

abstract：:A simultaneous GLC determination for methyl salicylate and menthol in a topical analgesic formulation is reported. n-Nonadecane is used as the internal standard. The method is rapid, accurate, precise, and selective in the presence of salicylic acid and ethyl salicylate. ...

journal_title：Journal of pharmaceutical sciences

authors： Sapio JP,Sethachutkul K,Moody JE

更新日期：1979-04-01 00:00:00

abstract：:Carvedilol is a new beta-blocking agent with vasodilating activities, which is a racemic mixture of R(+)- and S(-)-enantiomers. Since the two enantiomers differ in pharmacological properties, it is necessary to individually measure their plasma concentrations in order to evaluate the pharmacological effects of racemic...

journal_title：Journal of pharmaceutical sciences

authors： Fujimaki M,Murakoshi Y,Hakusui H

更新日期：1990-07-01 00:00:00

abstract：:Comparability studies used to assess a proposed manufacturing change for a biological product include sensitive analytical studies to confirm there are no significant differences in structural or functional attributes that may contribute to clinically meaningful changes in efficacy or safety. When a proposed change is...

journal_title：Journal of pharmaceutical sciences

authors： Grampp G,McElroy PL,Camblin G,Pollock A

更新日期：2018-06-01 00:00:00

abstract：:At low protein concentrations (c2), non-native protein aggregation rates are known to be sensitive to changes in conformational stability and "weak" or "colloidal" protein-protein interactions. Protein-protein interactions are also known to be strong functions of c2. In the present work, protein-protein interactions a...

journal_title：Journal of pharmaceutical sciences

authors： Ghosh R,Calero-Rubio C,Saluja A,Roberts CJ

更新日期：2016-03-01 00:00:00

abstract：:The synthesis of the diethyl analog of neostigmine, its preliminary pharmacology, and its use as an internal standard for the GLC assay of neostigmine are described. Both the diethyl analog and neostigmine undergo thermal demethylation in the injection port. The column selected produced satisfactory resolution and sho...

journal_title：Journal of pharmaceutical sciences

authors： Ward HE Jr,Freeman JJ,Sowell JW,Kosh JW

更新日期：1981-04-01 00:00:00

abstract：:A method has been developed for the estimation of the distribution coefficient (D), which considers the microspecies of a compound. D is calculated from the microscopic dissociation constants (microconstants), the partition coefficients of the microspecies, and the counterion concentration. A general equation for the ...

journal_title：Journal of pharmaceutical sciences

authors： Csizmadia F,Tsantili-Kakoulidou A,Panderi I,Darvas F

更新日期：1997-07-01 00:00:00

abstract：:To gain further insight into the effect of molecular mobility on the crystallization rate of amorphous drugs, the mean relaxation times of amorphous nifedipine and phenobarbital were calculated based on the Adam-Gibbs-Vogel (AGV) equation, using the parameters D, T(0), and T(f), derived from the heating rate dependenc...

journal_title：Journal of pharmaceutical sciences

authors： Aso Y,Yoshioka S,Kojima S

更新日期：2001-06-01 00:00:00

abstract：:The pharmacokinetics and tissue distribution of methotrexate (MTX) were investigated following intra-articular injection of either MTX solution or controlled release MTX loaded microspheres in healthy rabbit joints. MTX solution or MTX loaded microspheres (size 30-100 mum) (10 mg MTX) was injected into the right knee ...

journal_title：Journal of pharmaceutical sciences

authors： Liang LS,Wong W,Burt HM

更新日期：2005-06-01 00:00:00

abstract：:The potential binding interaction(s) of the anti-thyroid drug methimazole (MMZ) with the protein bovine serum albumin (BSA) has been studied using isothermal titration calorimetry (ITC) and UV-Visible, fluorescence and circular dichroism (CD) spectroscopic techniques. The binding of MMZ to BSA has been studied in both...

journal_title：Journal of pharmaceutical sciences

authors： Singh SK,Kishore N

更新日期：2008-06-01 00:00:00

abstract：:The organic extract of the whole plant Xanthorhiza simplicissima was found to exhibit good activity against the AIDS-related opportunistic pathogens Candida albicans, Cryptococcus neoformans, and Mycobacterium intracellularae. Bioassay-directed fractionation of the extract led to the isolation of the known alkaloid be...

journal_title：Journal of pharmaceutical sciences

authors： Okunade AL,Hufford CD,Richardson MD,Peterson JR,Clark AM

更新日期：1994-03-01 00:00:00

abstract：:The permeability coefficient, Kp, of pure unbranched alkanoic acids (C2-C7) applied to isolated porcine skin, reached a maximum in the solubility parameter (delta 2) range of 9.7-10 cal1 /2/cm3/2. When these and other penetrants were delivered from a solvent vehicle, the following linear relationships could be demonst...

journal_title：Journal of pharmaceutical sciences

authors： Liron Z,Cohen S

更新日期：1984-04-01 00:00:00

abstract：:The utility of inhaled protein therapeutics to treat lung-resident diseases is limited by protein degradation in the lungs and rapid clearance. This study therefore aimed to evaluate the impact of PEGylation on the lung and systemic exposure of interferon (IFN) α2 after intratracheal administration to rats. An inverse...

journal_title：Journal of pharmaceutical sciences

authors： Mcleod VM,Chan LJ,Ryan GM,Porter CJ,Kaminskas LM

更新日期：2015-04-01 00:00:00