Chitosan-based polyelectrolyte complexes as potential nanoparticulate carriers: physicochemical and biological characterization.

abstract：PURPOSE:To characterize temporal exposure and elimination of 5 gold/dendrimer composite nanodevices (CNDs) (5 nm positive, negative, and neutral, 11 nm negative, 22 nm positive) in mice using a physiologically based mathematical model. METHODS:400 ug of CNDs is injected intravenously to mice bearing melanoma cell line...

journal_title：Pharmaceutical research

authors： Mager DE,Mody V,Xu C,Forrest A,Lesniak WG,Nigavekar SS,Kariapper MT,Minc L,Khan MK,Balogh LP

更新日期：2012-09-01 00:00:00

abstract：:Coprecipitates of fluorescein and magnesium hydroxide demonstrate delayed absorption relative to fluorescein solutions when administered to the airways of the isolated perfused rat lung (IPRL). Perfusate concentration vs time profiles showed that dissolution and not epithelial permeability was the rate-controlling fac...

journal_title：Pharmaceutical research

authors： Niven RW,Byron PR

更新日期：1988-09-01 00:00:00

abstract：PURPOSE:In pharmacokinetic (PK)/pharmacodynamic (PD) modelling and simulations (M&S), omitting dropouts can cause inaccuracies in parameter estimation and clinical trial simulations (CTS). This study examines the impact of different imputation methods for missing data on the interpretation of model results, as well as ...

journal_title：Pharmaceutical research

authors： Yuen E,Gueorguieva I,Aarons L

更新日期：2014-10-01 00:00:00

abstract：:Indomethacin microspheres based on a combination of ethylcellulose and polyethyleneglycol were prepared using the solvent evaporation process. Release profiles of ensemble and individual microspheres were measured. Both were found to follow first-order kinetics, in contrast to what was expected. This was attributed to...

journal_title：Pharmaceutical research

authors： Benita S,Babay D,Hoffman A,Donbrow M

更新日期：1988-03-01 00:00:00

abstract：PURPOSE:Evidence suggests that uremic toxins such as hippurate (HA), indoleacetate (IA), indoxyl sulfate (IS), and 3-carboxy-4-methyl-5-propyl-2-furanpropionate (CMPF) promote the progression of renal failure by damaging tubular cells via rat organic anion transporter 1 (rOat1) and rOat3 on the basolateral membrane of ...

journal_title：Pharmaceutical research

authors： Deguchi T,Kouno Y,Terasaki T,Takadate A,Otagiri M

更新日期：2005-04-01 00:00:00

abstract：PURPOSE:To characterize factor(s) contained in apical medium of primary cultured rat alveolar epithelial type II cell-like monolayers (RAECM-II) that enhance insulin absorption across alveolar epithelial cells. MATERIALS AND METHODS:Primary rat alveolar epithelial cell monolayers cultured on Transwells in the presence...

journal_title：Pharmaceutical research

authors： Bahhady R,Kim KJ,Borok Z,Crandall ED,Shen WC

更新日期：2007-09-01 00:00:00

abstract：:The area function method for assessing zero-order (ko) drug absorption rates was compared to four other methods under conditions where variation occurs in the plasma concentration data and in the elimination rate constant (kel or k10) for one- or two-compartment models. For deviant kel values of a one-compartment mode...

journal_title：Pharmaceutical research

authors： Cheng HY,Jusko WJ

更新日期：1990-01-01 00:00:00

abstract：:One thousand milligrams of aspirin, as its lysine salt was administered intravenously, orally, and intramuscularly to nine male and nine female young healthy adult volunteers. After intravenous injection mean (+/- SD) values of clearance, steady-state volume of distribution, and terminal half-life were 12.2 +/- 2.2 ml...

journal_title：Pharmaceutical research

authors： Aarons L,Hopkins K,Rowland M,Brossel S,Thiercelin JF

更新日期：1989-08-01 00:00:00

abstract：PURPOSE:To investigate the effect of tyrphostin 8 (T-8), a GTPase inhibitor, on transferrin receptor (TfR)-mediated transcytosis of insulin-transferrin (In-Tf) conjugate in cultured enterocyte-like Caco-2 cells and on gastrointestinal (GI) absorption of In-Tf in streptozotocin (STZ)-induced diabetic rats. METHODS:Caco...

journal_title：Pharmaceutical research

authors： Xia CQ,Shen WC

更新日期：2001-02-01 00:00:00

abstract：:The interaction of dicumarol and phenothiazine neuroleptics binding to alpha 1-acid glycoprotein (AGP) was investigated by circular dichroism (CD) and equilibrium dialysis. The induced CD spectra of the dicumarol-AGP complex were affected differently by the different substituents of the phenothiazine molecule. The sig...

journal_title：Pharmaceutical research

authors： Miyoshi T,Yamamichi R,Maruyama T,Otagiri M

更新日期：1992-07-01 00:00:00

abstract：:Polymeric biomaterials have extensively been used in medicinal applications. However, factors that determine their biocompatibility are still not very clear. This article reviews various effects of the chemical structure and the surface properties of polymeric biomaterials on their biocompatibility, including protein ...

journal_title：Pharmaceutical research

authors： Wang YX,Robertson JL,Spillman WB Jr,Claus RO

更新日期：2004-08-01 00:00:00

abstract：:The fluxes of nitroglycerine (NG) through human abdominal epidermis from different individuals were measured in vitro at 32°C. The mean NG flux for the entire group was 16.9 µg/cm(2) × hr, with a standard deviation of 47.7%. There are no significant differences in the means and the variances of NG fluxes between males...

journal_title：Pharmaceutical research

authors： Langguth P,Spahn H,Mutschler E

更新日期：1986-02-01 00:00:00

abstract：PURPOSE:Cell-based permeability screens are widely used to identify drug-P-glycoprotein (PGP) interaction in vitro. However, their reliability in predicting the impact of PGP on human drug pharmacokinetics is poorly defined. The aim was to determine whether a quantitative relationship exists between PGP-mediated altera...

journal_title：Pharmaceutical research

authors： Collett A,Tanianis-Hughes J,Hallifax D,Warhurst G

更新日期：2004-05-01 00:00:00

abstract：PURPOSE:In this study, we aimed to illustrate the utility of fractional radiofrequency (RF) that generated microchannels in the skin, allowing delivery of peptide and siRNA via the skin. The mechanisms involved in the correlation between macromolecule permeation and skin structure were also elucidated. METHODS:The mor...

journal_title：Pharmaceutical research

authors： Lee WR,Shen SC,Sun CK,Aljuffali IA,Suen SY,Lin YK,Wang JJ,Fang JY

更新日期：2015-05-01 00:00:00

abstract：:Loracarbef is an oral 1-carba-1-dethiacephalosporin antibiotic structurally related to cefaclor. Like many beta-lactam antibiotics, loracarbef exists in several hydrated crystalline forms. The pH-solubility profile curve for loracarbef monohydrate is U-shaped, resembling those of other zwitterionic cephalosporins. Lor...

journal_title：Pharmaceutical research

authors： Pasini CE,Indelicato JM

更新日期：1992-02-01 00:00:00

abstract：:To achieve time-controlled or site-specific drug delivery in the gastrointestinal tract, a sigmoidal release system (SRS) was developed, which achieved a prolonged lag time, followed by rapid release. The theophylline beads with a thick Eudragit RS film coating showed very low drug release in water, whereas the releas...

journal_title：Pharmaceutical research

authors： Narisawa S,Nagata M,Danyoshi C,Yoshino H,Murata K,Hirakawa Y,Noda K

更新日期：1994-01-01 00:00:00

abstract：PURPOSE:To develop a new bionic system from an existing drug dissolution/absorption simulating system (DDASS) to simultaneously predict the release and absorption of enteric-coated formulations. METHODS:In accordance with the pH-dependent characteristics of enteric-coated formulations, the modified DDASS was designed ...

journal_title：Pharmaceutical research

authors： Liu W,He X,Li Z,Gao X,Ma Y,Xun M,Liu C

更新日期：2013-02-01 00:00:00

abstract：PURPOSE:To investigate the effect of atomization conditions on particle size and stability of spray-freeze dried protein. METHODS:Atomization variables were explored for excipient-free (no zinc added) and zinc-complexed bovine serum albumin (BSA). Particle size was measured by laser diffraction light scattering follow...

journal_title：Pharmaceutical research

authors： Costantino HR,Firouzabadian L,Hogeland K,Wu C,Beganski C,Carrasquillo KG,Córdova M,Griebenow K,Zale SE,Tracy MA

更新日期：2000-11-01 00:00:00

abstract：:Primaquine (I), a 6-methoxy-8-aminoqumoline derivative used for the treatment of malaria has previously been shown to be metabolized to 8-(3-carboxy-l-methyl-propylamino)-6-methoxyquinoline by both micro-organisms and laboratory rats. Reported herein is the synthesis of this novel metabolite. ...

journal_title：Pharmaceutical research

authors： McChesney JD,Sarangan S

更新日期：1984-03-01 00:00:00

abstract：OBJECTIVE:The objective of this work was to determine plasma protein adsorption and macrophage phagocytosis of biodegradable polyanhydride, polylactic acid and polylactic-co-glycolic acid microspheres prepared by both spray-drying and solvent evaporation techniques. METHODS:Microspheres were characterized by scanning ...

journal_title：Pharmaceutical research

authors： Lacasse FX,Filion MC,Phillips NC,Escher E,McMullen JN,Hildgen P

更新日期：1998-02-01 00:00:00

abstract：:The molecular environment of sucrose and mineral oil within sucrose and mineral oil solid state emulsions was investigated by NMR techniques. The 13C and 1H chemical shifts of sucrose and mineral oil to those observed in solid state emulsions (comprised of sucrose and mineral oil) were equivalent, indicating that the ...

journal_title：Pharmaceutical research

authors： Shively ML,Dec SF

更新日期：1994-09-01 00:00:00

abstract：PURPOSE:It was the aim of this study to synthesize and characterize a novel chitosan-glutathione (GSH) conjugate providing improved mucoadhesive and permeation-enhancing properties. METHODS:Mediated by carbodiimide and N-hydroxysuccinimide, glutathione was covalently attached to chitosan via the formation of an amide ...

journal_title：Pharmaceutical research

authors： Kafedjiiski K,Föger F,Werle M,Bernkop-Schnürch A

更新日期：2005-09-01 00:00:00

abstract：PURPOSE:To study the degradation of oxaliplatin in chloride media and evaluate the cytotoxicity of oxaliplatin in normal and chloride-deficient medium. METHODS:The products of the reaction of oxaliplatin with chloride were separated on a Hypercarb S column with a mobile phase containing 40% methanol in 0.05 M ammonia ...

journal_title：Pharmaceutical research

authors： Jerremalm E,Hedeland M,Wallin I,Bondesson U,Ehrsson H

更新日期：2004-05-01 00:00:00

abstract：PURPOSE:In this study we aimed to evaluate adaptive designs (ADs) by clinical trial simulation for a pharmacokinetic-pharmacodynamic model in oncology and to compare them with one-stage designs, i.e., when no adaptation is performed, using wrong prior parameters. METHODS:We evaluated two one-stage designs, ξ0 and ξ*, ...

journal_title：Pharmaceutical research

authors： Lestini G,Dumont C,Mentré F

更新日期：2015-10-01 00:00:00

abstract：PURPOSE:Chemically modified heparin-DOCA was prepared and found to have markedly lower anticoagulant activity than heparin. In the present study, we elucidated the antiangiogenic and antitumoral activities of heparin-DOCA derivative. METHODS:To evaluate the antiangiogenic and antitumoral effects of heparin-DOCA, capil...

journal_title：Pharmaceutical research

authors： Park K,Kim YS,Lee GY,Nam JO,Lee SK,Park RW,Kim SY,Kim IS,Byun Y

更新日期：2007-01-01 00:00:00

abstract：:Nanotechnology has continuously contributed to the fast development of diagnostic and therapeutic agents. Theranostic nanomedicine has encompassed the ongoing efforts on concurrent molecular imaging of biomarkers, delivery of therapeutic agents, and monitoring of therapy response. Among these formulations, polymer-bas...

journal_title：Pharmaceutical research

authors： Wang Z,Niu G,Chen X

更新日期：2014-06-01 00:00:00

abstract：PURPOSE:Drug particle physical properties are critical for the efficiency of a drug delivered to the lung. The purpose of this study was to produce ultrafine sumatriptan succinate particles for inhalation. METHODS:Sumatriptan succinate particles were produced via reactive precipitation without any surfactants. Several...

journal_title：Pharmaceutical research

authors： Yang ZY,Le Y,Hu TT,Shen Z,Chen JF,Yun J

更新日期：2008-09-01 00:00:00

abstract：PURPOSE:To determine the pharmacokinetics of GS-522, an oligodeoxynucleotide (GGTTGGTGTGGTTGG) inhibitor of thrombin, after constant infusion and bolus administration in the cynomolgus monkey. METHODS:Using a stability indicating HPLC method, the GS-522 plasma concentration versus time data were obtained after constan...

journal_title：Pharmaceutical research

authors： Lee WA,Fishback JA,Shaw JP,Bock LC,Griffin LC,Cundy KC

更新日期：1995-12-01 00:00:00

abstract：PURPOSE:To elucidate the catalytic mechanism of the esterase-like activity of serum albumin (SA), the reactivity of SA from six species was investigated using p-nitrophenyl esters as model substrates. METHODS:The effect of pH and the energetic and thermodynamic profiles of SA were determined for all species for p-nitr...

journal_title：Pharmaceutical research

authors： Sakurai Y,Ma SF,Watanabe H,Yamaotsu N,Hirono S,Kurono Y,Kragh-Hansen U,Otagiri M

更新日期：2004-02-01 00:00:00

abstract：PURPOSE:To explore the application of scanning ion occlusion sensing (SIOS) as a novel technology for characterization of nanoparticles. METHODS:Liposomes were employed as model nanoparticles. The size distribution of the liposomes was measured by both SIOS and dynamic light scattering (DLS). Particle number concentra...

journal_title：Pharmaceutical research

authors： Yang L,Broom MF,Tucker IG

更新日期：2012-09-01 00:00:00