Determination of free bile acids in pharmaceutical preparations by packed column supercritical fluid chromatography.

abstract：:The present study pursued to profile the intestinal solubility of nine HIV protease inhibitors (PIs) in fasted- and fed-state human intestinal fluids (FaHIF, FeHIF) aspirated from four volunteers. In addition, the ability of fasted- and fed-state simulated intestinal fluids (FaSSIF, FeSSIF) to predict the intestinal s...

journal_title：Journal of pharmaceutical sciences

authors： Wuyts B,Brouwers J,Mols R,Tack J,Annaert P,Augustijns P

更新日期：2013-10-01 00:00:00

abstract：:A method is described for the analysis of amitriptyline, doxepin, imipramine, nortriptyline, desmethyldoxepin, desipramine, and protriptyline in human plasma utlizing GLC-chemical-ionization mass spectrometry with selected ion monitoring. The assay is highly specific and is quantitative to at least 1 ng/ml with a stan...

journal_title：Journal of pharmaceutical sciences

authors： Jenkins RG,Friedel RO

更新日期：1978-01-01 00:00:00

abstract：:Wounds, particularly burns, are prone to colonization of potentially life-threatening bacteria. Local delivery of antimicrobial agents in sufficient quantities and over longer period of time can reduce risk of burn infections. Mupirocin-in-liposomes-in-hydrogels were proposed as advanced delivery system for improved b...

journal_title：Journal of pharmaceutical sciences

authors： Hurler J,Berg OA,Skar M,Conradi AH,Johnsen PJ,Skalko-Basnet N

更新日期：2012-10-01 00:00:00

abstract：:In this study, the adsorption of an IgG1 antibody to siliconized vials was investigated with focus on the formulation parameters pH, ionic strength, and nonionic surfactants. Electrophoretic mobility measurements were performed to investigate the charge characteristics of protein and siliconized glass particles at dif...

journal_title：Journal of pharmaceutical sciences

authors： Höger K,Mathes J,Frieß W

更新日期：2015-01-01 00:00:00

abstract：:This work establishes a predictive model that explicitly recognizes microstructural parameters in the description of the overall mass uptake and local gradients of moisture into tablets. Model equations were formulated based on local tablet geometry to describe the transient uptake of moisture. An analytical solution ...

journal_title：Journal of pharmaceutical sciences

authors： Klinzing GR,Zavaliangos A

更新日期：2016-08-01 00:00:00

abstract：:An HPLC method for the simultaneous determination of safrole (S), dihydrosafrole (DHS), and chloromethyldihydrosafrole (CM-DHS) in piperonyl butoxide, with fluorimetric detection and elution gradient, is described. Samples with internal standard (piperonyl isobutyrate) are adsorbed on silica cartridges, then eluted wi...

journal_title：Journal of pharmaceutical sciences

authors： Schreiber-Deturmeny EM,Pauli AM,Pastor JL

更新日期：1993-08-01 00:00:00

abstract：:Both developing (Days --1-+12 relative to inoculation) and established (Days +18-+29) stages of Mycobacterium butyricum adjuvant-induced polyarthritis in rats were treated orally with cryogenine (100 mg/kg/day), a prototype anti-inflammatory (phenylbutazone, 100 mg/kg/day), or a prototype immunosuppressive (cyclophosp...

journal_title：Journal of pharmaceutical sciences

authors： Watson WC,Malone MH

更新日期：1977-09-01 00:00:00

abstract：:The purpose of the present study was to clarify the expression levels of transporter proteins in human lung tissue and to analyze regional and interindividual differences in primary cultured epithelial cells. Organic cation/carnitine tranporter 1 (OCTN1) protein expression was highest (2.08 ± 1.19 fmol/μg protein) in ...

journal_title：Journal of pharmaceutical sciences

authors： Sakamoto A,Matsumaru T,Yamamura N,Uchida Y,Tachikawa M,Ohtsuki S,Terasaki T

更新日期：2013-09-01 00:00:00

abstract：:Benzydamine hydrochloride (Tantum, 1) is a photoallergic and phototoxic anti-inflammatory and analgesic agent. This drug is photolabile under aerobic and anaerobic conditions. Irradiation of a methanol solution of benzydamine under oxygen or argon at 300 nm affords 5-hydroxybenzydamine (2) and 2-beta-dimethylaminoprop...

journal_title：Journal of pharmaceutical sciences

authors： Vargas F,Rivas C,Machado R,Sarabia Z

更新日期：1993-04-01 00:00:00

abstract：:There is a need to evaluate the permeability of human ulcerated tissue and periulcer tissue in order to assess the possible treatment of such a localized pathological lesion with a topical therapy. In vitro percutaneous absorption studies were undertaken to evaluate an animal model that may mimic this clinical situati...

journal_title：Journal of pharmaceutical sciences

authors： Walker M,Hulme TA,Rippon MG,Walmsley RS,Gunnigle S,Lewin M,Winsey S

更新日期：1997-12-01 00:00:00

abstract：:A GLC-mass spectrometric assay for methylphenidate in biological fluids was developed using the ethyl ester homolog of the drug as the internal standard. The procedure has a lower level of sensitivity of 1.2 ng/ml and is based on GLC-mass spectrometic monitoring of the m/e 180 ion common to the mass spectra of the N-t...

journal_title：Journal of pharmaceutical sciences

authors： Gal J,Hodshon BJ,Pintauro C,Flamm BL,Cho AK

更新日期：1977-06-01 00:00:00

abstract：:The free radical scavenger properties of vitamin E (DL-alpha-tocopherol), a natural antioxidant, and derivatives were studied using an original in vitro method consisting of free radical production by photoirradiation of pheomelanin and direct detection of the free radicals by a physical, specific technique, electron ...

journal_title：Journal of pharmaceutical sciences

authors： Duval C,Poelman MC

更新日期：1995-01-01 00:00:00

abstract：:Amphiphilic cyclodextrins (CDs) are biocompatible derivatives of natural CDs and are able to form nanoparticles or polyplexes spontaneously. In this study, nanoparticles prepared from nonionic (6OCaproβCD) or cationic amphiphilic CD (PC βCDC6) were used comparatively to develop nanoparticles intended for breast cancer...

journal_title：Journal of pharmaceutical sciences

authors： Varan G,Öncül S,Ercan A,Benito JM,Ortiz Mellet C,Bilensoy E

更新日期：2016-10-01 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 present work describes the development of a novel formulation of amorphous agomelatine (AGM) that exhibits enhanced in vitro dissolution rate and bioavailability, as well as improved storage stability. AGM was loaded on a mixture of microcrystalline cellulose with a high specific surface area excipient, namely col...

journal_title：Journal of pharmaceutical sciences

authors： Barmpalexis P,Grypioti A,Vardaka E,Karagianni A,Kachrimanis K

更新日期：2018-01-01 00:00:00

abstract：:Water evaporation rates were measured from thin samples of a model layered structure of stratum corneum lipids with 32% water. A model with only free fatty acids present gave the lowest evaporation rates, while a model with only oleic acid gave values approximately 50% higher. Using the total lipid spectrum of stratum...

journal_title：Journal of pharmaceutical sciences

authors： Friberg SE,Kayali I

更新日期：1989-08-01 00:00:00

abstract：:The long serum half-lives of mAbs are conferred by pH-dependent binding of IgG-Fc to the neonatal Fc receptor (FcRn). The Fc region of human IgG1 has three conserved methionine residues, Met252, Met358, and Met428. Recent studies showed oxidation of these Met residues impairs FcRn binding and consequently affects phar...

journal_title：Journal of pharmaceutical sciences

authors： Gao X,Ji JA,Veeravalli K,Wang YJ,Zhang T,Mcgreevy W,Zheng K,Kelley RF,Laird MW,Liu J,Cromwell M

更新日期：2015-02-01 00:00:00

abstract：:The dissolution behavior and absorption of mefenamic acid following oral and rectal administration from drug:egg albumin solid dispersions have been studied in comparison with those of the drug alone. The interaction of drug with egg albumin in aqueous solution and solid state were examined by solubility analysis, dia...

journal_title：Journal of pharmaceutical sciences

authors： Imai T,Nohdomi K,Acartürk F,Otagiri M

更新日期：1991-05-01 00:00:00

abstract：:Currently, conjunctivitis is treated by frequent high dose administration of sparfloxacin eye drop solution. However, the eye drops are inconvenient because of low bioavailability, short ocular drug residence time, and need of frequent instillation, which lead to patient noncompliance affecting the routine life style ...

journal_title：Journal of pharmaceutical sciences

authors： Ran W,Ma H,Li M

更新日期：2020-06-01 00:00:00

abstract：:Solid samples of 1-hydroxymethyl- and 1,5-dihydroxymethylallopurinol, 1-hydroxymethylglutethimide, and 1-hydroxymethylphenobarbital were prepared, and equilibrium constants for their formation from formaldehyde and allopurinol, glutethimide, or phenobarbital were calculated. The N-hydroxymethyl derivatives had higher ...

journal_title：Journal of pharmaceutical sciences

authors： Bansal PC,Pitman IH,Higuchi T

更新日期：1981-08-01 00:00:00

abstract：:The aim of this study is to explore hot melt extrusion (HME) as a solvent-free drug loading technique for preparation of stable amorphous solid dispersions using mesoporous silica (PSi). Ibuprofen and carvedilol were used as poorly soluble active pharmaceutical ingredients (APIs). Due to the high friction of an API:PS...

journal_title：Journal of pharmaceutical sciences

authors： Genina N,Hadi B,Löbmann K

更新日期：2018-01-01 00:00:00

abstract：:Avoiding unwanted immunogenicity is of key importance in the development of therapeutic drug proteins. Animal models are of less predictive value because most of the drug proteins are recognized as foreign proteins. However, different methods have been developed to obtain immunotolerant animal models. So far, the immu...

journal_title：Journal of pharmaceutical sciences

authors： Brenden N,Madeyski-Bengtson K,Martinsson K,Svärd R,Albery-Larsdotter S,Granath B,Lundgren H,Lövgren A

更新日期：2013-03-01 00:00:00

abstract：:The synthesis of diazoketone analogs of amino acids and associated problems were investigated with N-phthaloyl-DL-alanine serving as a model. The carboxyl was activated by conversion to the acid chloride or, under mild conditions, to the mixed anhydride obtained with ethyl chloroformate or dicyclohexylcarbodiimide; th...

journal_title：Journal of pharmaceutical sciences

authors： Paul B,Korytnyk W

更新日期：1978-05-01 00:00:00

abstract：:Nanoparticle tracking analysis (NTA) obtains particle size by analysis of particle diffusion through a time series of micrographs and particle count by a count of imaged particles. The number of observed particles imaged is controlled by the scattering cross-section of the particles and by camera settings such as sens...

journal_title：Journal of pharmaceutical sciences

authors： Defante AP,Vreeland WN,Benkstein KD,Ripple DC

更新日期：2018-05-01 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：:A kinetic dialysis technique together with a radiolabeled chenodeoxycholate (CDC) was used to determine the existence of a relationship between the monomer concentration of CDC and the total CDC concentration in different CDC solutions containing 1 or 5 mM sulfobutylether (SBE)-β-cyclodextrin. On the basis of the natu...

journal_title：Journal of pharmaceutical sciences

authors： Liu CL,Chang CL,Jhou SY,Higuchi WI

更新日期：2012-08-01 00:00:00

abstract：:[7-3H]Tetracycline and [carbonyl-14C]rafoxanide were injected intravenously into anesthetized controls and rats in which experimental fascioliasis had been induced by 20 Fasciola hepatica metacercariae. The biliary excretion (1 and 3 h, respectively) of the radioactivity consisted of approximately 4% of the administer...

journal_title：Journal of pharmaceutical sciences

authors： Galtier P,Larrieu G,Franc M

更新日期：1985-09-01 00:00:00

abstract：:A stability-indicating assay procedure for the determination of norethindrone on the surface of Red Delicious apple slices was developed. The apple slice is homogenized in pH 10 borate buffer solution and norethindrone is then partitioned into chloroform using a diffusion chamber that has a membrane that is permeable ...

journal_title：Journal of pharmaceutical sciences

authors： Mayberry DO,Kowblansky M,Lane PA,Wray PE

更新日期：1990-08-01 00:00:00

abstract：:beta-Cyclodextrin was ethylated at the 2- and 6-hydroxyl positions. Diethyl sulfate was employed as an alkylating reagent. NMR spectra data indicate that heptakis(2,6-di-O-ethyl)-beta-cyclodextrin (DCD) is the principal component of the product obtained. In addition, the FAB mass spectra obtained in nitrobenzyl alcoho...

journal_title：Journal of pharmaceutical sciences

authors： Vakily M,Pasutto FM,Daneshtalab M,Jamali F

更新日期：1995-08-01 00:00:00

abstract：:The present study aims to evaluate the in vitro and in vivo performance of ordered mesoporous silica (OMS) as a carrier for the poorly water-soluble compound fenofibrate. Fenofibrate was loaded into OMS via incipient wetness impregnation to obtain a 29% drug load and formulated into capsules. Two capsule dosage forms ...

journal_title：Journal of pharmaceutical sciences

authors： Bukara K,Schueller L,Rosier J,Daems T,Verheyden L,Eelen S,Martens JA,Van den Mooter G,Bugarski B,Kiekens F

更新日期：2016-08-01 00:00:00