Complex formation between metronidazole and sodium urate: effect on photodegradation of metronidazole.

abstract：:Knowledge of comparative solubility profiles of a base and its hydrochloride salt is important in selecting one form over the other for dosage form design. The studies with two model bases, namely, tiaramide and papaverine, showed that, except during phase transition from a base to a salt or vice versa, the pH-solubil...

journal_title：Pharmaceutical research

authors： Serajuddin AT,Mufson D

更新日期：1985-03-01 00:00:00

abstract：:Lidocaine was administered to healthy volunteers at different sites in the rectum. Unchanged drug and monoethylglycinexylidide (MEGX) concentrations were measured in plasma with a newly developed gas chromatographic method. Lidocaine was given rectally by means of an osmotic system (Osmet(®)) which delivered 25 mg/h a...

journal_title：Pharmaceutical research

authors： de Leede LG,de Boer AG,Feijen CD,Breimer DD

更新日期：1984-05-01 00:00:00

abstract：PURPOSE:To investigate influence of ion induced mesophasic transformation on pharmaceutical performance of in situ gelling system consisting of glyceryl monooleate. METHODS:The prepared system showed mesophasic transformation during its conversion from sol to gel upon controlled hydration. The process of mesophasic tr...

journal_title：Pharmaceutical research

authors： Patil SS,Venugopal E,Bhat S,Mahadik KR,Paradkar AR

更新日期：2013-07-01 00:00:00

abstract：:We investigated the effects of increased concentrations of the solutes, salicylic acid, benzoic acid, and o-, m-, and p-methoxy benzoic acids, on the anisotropic properties of a liquid crystal solvent. The lamellar liquid crystal was composed of 37% polyoxyethylene (20) isohexadecyl ether in aqueous buffer of pH 1. Ph...

journal_title：Pharmaceutical research

authors： Ibrahim HG,Sallam ES,Takieddin M,Habboub M

更新日期：1993-05-01 00:00:00

abstract：PURPOSE:The aim of the study was to investigate whether dopamine is transferred along the olfactory pathway to the brain following nasal administration to mice. METHODS:[3H]-Dopamine was administered nasally or intravenously to female mice. Brain tissue samples were excised and the radioactive content was measured. Th...

journal_title：Pharmaceutical research

authors： Dahlin M,Bergman U,Jansson B,Björk E,Brittebo E

更新日期：2000-06-01 00:00:00

abstract：PURPOSE:To determine the effect of Sodium N-[8-(2-hydroxybenzoyl)amino]caprylate (SNAC) on the permeation of cromolyn across Caco-2 cell monolayers and explore the molecular basis for the enhanced absorption. METHODS:Transport studies of cromolyn across Caco-2 cell monolayers were conducted in the presence of various ...

journal_title：Pharmaceutical research

authors： Ding X,Rath P,Angelo R,Stringfellow T,Flanders E,Dinh S,Gomez-Orellana I,Robinson JR

更新日期：2004-12-01 00:00:00

abstract：PURPOSE:To assess the uridine diphosphate (UDP)-glucuronosyltransferase (UGT) isozymes involved in the glucuronidation of niflumic acid in human liver. METHODS:The glucuronidation activity of niflumic acid was determined in liver microsomes and recombinant UGT isozymes by incubation of niflumic acid with UDP-glucuroni...

journal_title：Pharmaceutical research

authors： Mano Y,Usui T,Kamimura H

更新日期：2006-07-01 00:00:00

abstract：PURPOSE:The aim of the present study was to improve the dry powder inhalation behavior of steroid KSR-592 with lactose by altering the crystal shape and the particle size of the drug for use in a newly designed inhalation device, Jethaler. METHOD:The shape of the crystals was changed by polymorphic transformation of o...

journal_title：Pharmaceutical research

authors： Ikegami K,Kawashima Y,Takeuchi H,Yamamoto H,Isshiki N,Momose D,Ouchi K

更新日期：2002-10-01 00:00:00

abstract：PURPOSE:Radial basis function artificial neural networks and theoretical descriptors were used to develop a quantitative structure-pharmacokinetic relationship for structurally diverse drug compounds. METHODS:Human bioavailability values were taken from the literature and descriptors were generated from the drug struc...

journal_title：Pharmaceutical research

authors： Turner JV,Maddalena DJ,Agatonovic-Kustrin S

更新日期：2004-01-01 00:00:00

abstract：PURPOSE:PHBHHx (poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)) is an excellent biomaterial for tissue repair. Here, we aim to develop a PHBHHx-based three-dimensional (3D) scaffold system for sustained delivery of proteins (insulin serves as a model protein). METHODS:The insulin-phospholipid complex (INS-PLC) was prep...

journal_title：Pharmaceutical research

authors： Peng Q,Yang YJ,Zhang T,Wu CY,Yang Q,Sun X,Gong T,Zhang L,Zhang ZR

更新日期：2013-04-01 00:00:00

abstract：PURPOSE:To evaluate the potential for the acidic intestinal unstirred water layer (UWL) to induce drug supersaturation and enhance drug absorption from intestinal mixed micelles, via the promotion of fatty acid absorption. METHODS:Using a single-pass rat jejunal perfusion model, the absorptive-flux of cinnarizine and ...

journal_title：Pharmaceutical research

authors： Yeap YY,Trevaskis NL,Porter CJ

更新日期：2013-12-01 00:00:00

abstract：:The bioavailability of a new sustained-release potassium chloride (KCl) tablet, designed for once-a-day dosing, was compared to a KCl elixir using urinary excretion data. The study utilized 25 male volunteers dosed in a crossover design in a dietary/activity-controlled environment. The regimens consisted of a total of...

journal_title：Pharmaceutical research

authors： Betlach CJ,Arnold JD,Frost RW,Leese PT,Gonzalez MA

更新日期：1987-10-01 00:00:00

abstract：PURPOSE:The purpose of this study was to determine the existence of insulin-degrading enzyme (EC 3.4.22.11) (IDE) in rat intestinal enterocytes. METHODS:Subcellular fractionation, biochemical characterization, immunoprecipitation, and western blots were employed. RESULTS:Insulin-degrading activity was localized in th...

journal_title：Pharmaceutical research

authors： Bai JP,Chang LL

更新日期：1995-08-01 00:00:00

abstract：PURPOSE:Understanding the critical factors governing the crystallization tendency of organic compounds is vital when assessing the feasibility of an amorphous formulation to improve oral bioavailability. The objective of this study was to investigate potential links between viscosity and crystallization tendency for or...

journal_title：Pharmaceutical research

authors： Baird JA,Santiago-Quinonez D,Rinaldi C,Taylor LS

更新日期：2012-01-01 00:00:00

abstract：PURPOSE:Iontophoresis was employed for enhancing the transdermal delivery of acyclovir through nude mouse skin in vitro, with the aim of understanding the mechanisms responsible for drug transport, in order to properly set the conditions of therapeutical application. METHODS:Experiments were done in horizontal diffusi...

journal_title：Pharmaceutical research

authors： Volpato NM,Santi P,Colombo P

更新日期：1995-11-01 00:00:00

abstract：:A new enteric-coated formulation of sodium ursodeoxycholate was prepared and administered to man. The barrier film disintegrates and releases the drug only at pH > or = 5.5. The sodium salt of glycoursodeoxycholate was also prepared and encapsulated like ursodeoxycholate. Serum levels of ursodeoxycholate and glycourso...

journal_title：Pharmaceutical research

authors： Roda A,Roda E,Marchi E,Simoni P,Cerrè C,Pistillo A,Polimeni C

更新日期：1994-05-01 00:00:00

abstract：:The use of nanoparticulate pharmaceutical carriers to enhance the in vivo efficiency of many drugs well established itself over the past decade both in pharmaceutical research and clinical setting. The current level of engineering pharmaceutical nanocarriers in some cases allows for drug delivery systems (DDS) to demo...

journal_title：Pharmaceutical research

authors： Torchilin VP

更新日期：2007-12-01 00:00:00

abstract：PURPOSE:Melanoma is an aggressive neoplasm with a propensity for metastases and resistance to therapy. Previously, we showed that (-)-epigallocatechin-3-gallate (EGCG), the major polyphenolic antioxidant present in green tea, resulted in a significant decrease in the viability and growth of melanoma and induction of ap...

journal_title：Pharmaceutical research

authors： Nihal M,Roelke CT,Wood GS

更新日期：2010-06-01 00:00:00

abstract：PURPOSE:The purpose of this work was to determine the jejunal permeability of cyclosporin A (CsA) in humans and whether formulation variables modulate the effects of P-glycoprotein (P-gp) on the permeability of CsA in Caco-2 cells. METHODS:A solution containing CsA, phenylalanine, propranolol, polyethyleneglycol (PEG)...

journal_title：Pharmaceutical research

authors： Chiu YY,Higaki K,Neudeck BL,Barnett JL,Welage LS,Amidon GL

更新日期：2003-05-01 00:00:00

abstract：PURPOSE:The aim of this work was to evaluate whether improved topical delivery of finasteride, focussed to the hair follicles of human scalp skin could be achieved with application of short durations of heat and use of specific chemical penetration enhancers. METHODS:Franz cell experiments with human scalp skin were p...

journal_title：Pharmaceutical research

authors： Farah HA,Brown MB,McAuley WJ

更新日期：2020-05-31 00:00:00

abstract：PURPOSE:Treatment of acute lung injury (ALI) observed in Gram-negative sepsis represents an unmet medical need due to a high mortality rate and lack of effective treatment. Accordingly, we developed and characterized a novel nanomedicine against ALI. We showed that when human glucagon-like peptide 1(7-36) (GLP-1) self-...

journal_title：Pharmaceutical research

authors： Lim SB,Rubinstein I,Sadikot RT,Artwohl JE,Önyüksel H

更新日期：2011-03-01 00:00:00

abstract：PURPOSE:Understanding the mechanism of protein-excipient interaction and illuminating the influencing factors on protein stability are key steps in the rational design of protein formulations. The objective of this study was to assess effects of preferential interaction type of excipient and surface aromatic hydrophobi...

journal_title：Pharmaceutical research

authors： Wen L,Zheng X,Wang X,Lan H,Yin Z

更新日期：2017-07-01 00:00:00

abstract：:A 1H-NMR spectroscopic method for the determination of the optical purity of threo-methylphenidate hydrochloride is presented. Complexation of the free-base form of the substrate with a chiral Eu(III) shift reagent resulted in two distinct enantiomeric ester methyl proton signals of utility for quantitative work. The ...

journal_title：Pharmaceutical research

authors： Hanna GM,Lau-Cam CA

更新日期：1990-07-01 00:00:00

abstract：PURPOSE:Pluronics are known as inhibitors of multidrug resistance thus making tumor cells sensitive to therapeutic doses of drugs. The purpose of our study consists in revealing molecular targets of the hydrophobic poly(propylene oxide) block of pluronics in living cells and the dependence of the polymers chemosensitiz...

journal_title：Pharmaceutical research

authors： Zhirnov A,Nam E,Badun G,Romanyuk A,Ezhov A,Melik-Nubarov N,Grozdova I

更新日期：2018-09-06 00:00:00

abstract：PURPOSE:To show, using a model study, how electronic structure theory can be applied in combination with LC/UV/MS/MS for the prediction and identification of oxidative degradants. METHODS:The benzyloxazole 1, was used to represent an active pharmaceutical ingredient for oxidative forced degradation studies. Bond disso...

journal_title：Pharmaceutical research

authors： Reid DL,Calvitt CJ,Zell MT,Miller KG,Kingsmill CA

更新日期：2004-09-01 00:00:00

abstract：PURPOSE:The objective of this study was to determine the pharmacokinetics and safety for NX1838 following injection into the vitreous humor of rhesus monkeys. METHODS:Plasma and vitreous humor pharmacokinetics were determined following a single bilateral 0.25, 0.50, 1.0, 1.5, or 2.0 mg/eye dose. In addition, the pharm...

journal_title：Pharmaceutical research

authors： Drolet DW,Nelson J,Tucker CE,Zack PM,Nixon K,Bolin R,Judkins MB,Farmer JA,Wolf JL,Gill SC,Bendele RA

更新日期：2000-12-01 00:00:00

abstract：PURPOSE:The purpose of this study was to investigate the pH-dependent passive and active transport of weakly basic drugs across the human intestinal epithelium. METHODS:The bidirectional pH-dependent transport of weak bases was studied in Caco-2 cell monolayers in the physiologic pH range of the gastrointestinal tract...

journal_title：Pharmaceutical research

authors： Neuhoff S,Ungell AL,Zamora I,Artursson P

更新日期：2003-08-01 00:00:00

abstract：PURPOSE:To evaluate the potential of ascorbate as a novel ligand in the preparation of pharmaceutical nanocarriers with enhanced tumor-cell specific binding and cytotoxicity. METHODS:Palmitoyl ascorbate was incorporated into liposomes at varying concentrations. A stable formulation was selected based on size and zeta ...

journal_title：Pharmaceutical research

authors： D'Souza GG,Wang T,Rockwell K,Torchilin VP

更新日期：2008-11-01 00:00:00

abstract：:Emulsions (o/w) were prepared from solid-state emulsions comprised of various matrix materials and oils and the resultant particle size properties determined. Results suggest that for those matrices that can form solid-state emulsions, the droplet size decreased as a function of time, as previously observed. The final...

journal_title：Pharmaceutical research

authors： Shively ML

更新日期：1993-08-01 00:00:00

abstract：PURPOSE:S-(4-Nitrobenzyl)-6-thioinosine (NBMPR) is routinely used at concentrations of 0.10 μM and 0.10 mM to specifically inhibit transport of nucleosides mediated by equilibrative nucleoside transporters 1 (ENT1) and 2 (ENT2), respectively. We recently showed that NBMPR (0.10 mM) might also inhibit placental active e...

journal_title：Pharmaceutical research

authors： Karbanova S,Sorf A,Jiraskova L,Lalinska A,Ptackova Z,Staud F,Cerveny L

更新日期：2020-02-21 00:00:00