Abstract：
:A new high-performance liquid chromatographic (HPLC) assay suitable for pharmacokinetic studies of enantiomers of fenoprofen (FEN) was developed. Following the addition of internal standard (IS; racemic ketoprofen), the plasma or urine constituents are extracted into a mixture of isooctane:isopropanol (95:5), back extracted into water, and finally, extracted into chloroform. After evaporation of the organic layer, the drug and IS are derivatized with l-leucinamide hydrochloride via ethyl chloroformate intermediate. The formed diastereoisomers are chromatographed on a reversed-phase HPLC with a mobile phase consisting of monopotassium phosphate solution:acetonitrile:triethylamine (65:35:0.02) at a flow rate of 1 ml/min. The detection UV wavelengths are 232 and 275 for the drug and IS, respectively. The suitability of the assay for pharmacokinetic analysis of FEN enantiomers was examined by analysis of the plasma and urine samples taken from a healthy subject, following peroral administration of a single 300-mg dose of racemic FEN.
journal_name
Pharm Resjournal_title
Pharmaceutical researchauthors
Mehvar R,Jamali Fdoi
10.1023/a:1015867513045subject
Has Abstractpub_date
1988-01-01 00:00:00pages
53-6issue
1eissn
0724-8741issn
1573-904Xjournal_volume
5pub_type
杂志文章abstract：:A new magnetic microsphere carrier has been formulated that may localize drugs by both biochemical and physical means. The microspheres, prepared from the polysaccharide chitosan, are designed to bind to anionic glycosaminoglycan receptors on the surface of capillary endothelial cells. The microspheres were formulated...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1015978704810
更新日期：1988-05-01 00:00:00
abstract：:High molecular weight drugs in general, and peptides in particular, are usually delivered by parenteral route because they are poorly absorbed or degraded in the gastrointestinal tract. To optimize therapy, it is desirable to search for nonparenteral routes of administration and to deliver the drug in a controlled-rel...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1018948924992
更新日期：1993-06-01 00:00:00
abstract：PURPOSE:We compared cationic, polyamine-coated microparticles (MPs) and anionic, protein-coated MPs with respect to their phagocytosis and phagosomal fate in dendritic cells (DCs) and macrophages (Mphi). METHODS:Polystyrene MPs were surface modified by covalent coupling with fluorescein isothiocyanate-labeled polyamin...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1022271020390
更新日期：2003-02-01 00:00:00
abstract：PURPOSE:Supramolecular Biovectors (SMBV) consist of cross-linked cationic nanoparticles surrounded by a lipid membrane. The purpose was to study the structure of the lipid membrane and to characterise its interaction with the nanoparticles in order to differentiate SMBV from other polymer/lipid associations. METHODS:T...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1007504124603
更新日期：2000-07-01 00:00:00
abstract：PURPOSE:Previously, a respirable powder (RP) formulation of pirfenidone (PFD) was developed for reducing phototoxic risk; however, PFD-RP demonstrated unacceptable in vitro inhalation performance. The present study aimed to develop a new RP system of PFD with favorable inhalation properties by spray-drying method. MET...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-016-1887-3
更新日期：2016-06-01 00:00:00
abstract：PURPOSE:The Caco-2 association of lectin-grafted PLGA-nanospheres was investigated compared to plain and BSA-coated spheres. METHODS:Nanospheres made from fluorescent-labeled PLGA were coated with wheat germ agglutinin (WGA) or BSA and incubated with Caco-2 monolayers varying the concentration of nanospheres, the time...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/b:pham.0000045247.09724.26
更新日期：2004-10-01 00:00:00
abstract：:Losartan, an antihypertensive agent in clinical development, was found to exist in two enantiotropic polymorphic forms, a low-temperature stable form (Form I) and a high-temperature stable form (Form II), the temperatures at which they are stable being related to the transition temperature. X-ray powder diffraction pa...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1018973530443
更新日期：1993-06-01 00:00:00
abstract：:Leucine enkephalin (YGGFL) undergoes rapid degradation in sheep nasal mucosa to yield GGFL which is further degraded to FL. The activity of the nasal mucosal homogenate against YGGFL and GGFL (t1/2 12 and 7 min) was significantly greater than that observed with a nasal wash fluid (t1/2 40 and 13 min). The effect of cy...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1018946829225
更新日期：1994-12-01 00:00:00
abstract：PURPOSE:To investigate the destruction of clinically-relevant bacteria within biofilms via the sustained release of the antibiotic tetracycline from zein-based electrospun polymeric fibrous matrices and to demonstrate the compatibility of such wound dressing matrices with human skin cells. METHODS:Zein/PCL triple laye...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-015-1782-3
更新日期：2016-01-01 00:00:00
abstract：PURPOSE:The development of a new two-dimensional (2D) model to predict follicular permeation, with integration into a recently reported multi-scale model of transdermal permeation is presented. METHODS:The follicular pathway is modelled by diffusion in sebum. The mass transfer and partition properties of solutes in li...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-017-2209-0
更新日期：2017-10-01 00:00:00
abstract：PURPOSES:To evaluate the effects of component contents in different colistin methanesulfonate (CMS) formulas on their clinical pharmacokinetics of the prodrug CMS and the formed colistin. METHODS:Two CMS formulas (CTTQ and Parkedale) were investigated in a single dose, randomized, open-label, crossover study conducted...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-021-02991-4
更新日期：2021-01-26 00:00:00
abstract：:The technique of Affinity capillary electrophoresis (ACE) is a useful tool to characterize complexation and partition equilibria. A wide range of applications in pharmaceutics has been presented: the determination of pKA values, of association constants between drugs and cyclodextrins or amphiphilic compounds as well ...
journal_title：Pharmaceutical research
pub_type： 杂志文章,评审
doi：
更新日期：1999-11-01 00:00:00
abstract：PURPOSE:The aim of this study was to examine if sparging with CO2(g) could be used to establish stable biorelevant bicarbonate buffers, in aqueous medium, for use in dissolution characterization of low-solubility ionizable drugs. METHODS:Preparation of the bicarbonate-containing dissolution medium was monitored by use...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1026147620304
更新日期：2003-10-01 00:00:00
abstract：PURPOSE:To monitor the biodistribution of IgG1 aggregates upon subcutaneous (SC) and intravenous (IV) administration in mice and measure their propensity to stimulate an early immune response. METHODS:A human mAb (IgG1) was fluorescently labeled, aggregated by agitation stress and injected in SKH1 mice through SC and ...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-013-1154-9
更新日期：2014-01-01 00:00:00
abstract：PURPOSE:To compare the effectiveness of trastuzumab-modified gold nanoparticles (AuNP) labeled with 177Lu (trastuzumab-AuNP-177Lu) targeted to HER2 with non-targeted AuNP-177Lu for killing HER2-overexpressing breast cancer (BC) cells in vitro and inhibiting tumor growth in vivo following intratumoral (i.t.) injection. ...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-016-2082-2
更新日期：2017-03-01 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
pub_type： 杂志文章
doi：10.1007/s11095-011-0540-4
更新日期：2012-01-01 00:00:00
abstract：PURPOSE:To study the role of unsaturated fatty acid ester substituents in the autoxidation of polysorbate 80 using quantitative kinetics. METHODS:Oxidation kinetics were monitored at 40 degrees C in aqueous solution by tracking head space oxygen consumption using a fiber optic oxygen sensor with phase shift fluorescen...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-009-9946-7
更新日期：2009-10-01 00:00:00
abstract：PURPOSE:The purpose of the present study was to investigate changes of blood-brain barrier (BBB) and brain parenchymal protein expression due to type II diabetes mellitus (T2DM) induced by a high-fat diet (HFD) by using SWATH-based quantitative proteomics. METHODS:Mice were fed a HFD for 2 or 10 weeks, and then SWATH-...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-019-2674-8
更新日期：2019-07-31 00:00:00
abstract：:Short-lived gamma emitting radioisotopes can be incorporated into polylactide/glycolide polymeric microspheres with various specific activities for possible use in understanding the in-vivo deposition, distribution and clearance of microparticulate drug carrier systems. The incorporated radiolabel is stable with negli...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1016237216352
更新日期：1995-12-01 00:00:00
abstract：PURPOSE:The aim of the study is to investigate the effect of polymer blending on entrapment and release of ganciclovir (GCV) from poly(D,L-lactide-co-glycolide) (PLGA) microspheres using a set of empirical equations. METHODS:Two grades of PLGA, PLGA 7525 [D,L-lactide:glycolide(75:25), MW 90,000-126,000 Da] and Resomer...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-005-9042-6
更新日期：2006-01-01 00:00:00
abstract：:In order to study the influence of hydrogen bonding in the amide backbone of a peptide on permeability across a cell membrane, a series of tetrapeptide analogues was prepared from D-phenylalanine. The amide nitrogens in the parent oligomer were sequentially methylated to give a series containing from one to four methy...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1015867608405
更新日期：1992-03-01 00:00:00
abstract：:Sodium taurodihydrofusidate (STDHF) is one of the most promising absorption enhancers for nasal delivery of peptide drugs. Drugs and additives in nasal formulations should not interfere with the self-cleaning capacity of the nose by the ciliary epithelium. Measured in vitro on human adenoid tissue with a photoelectric...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1015872617511
更新日期：1990-02-01 00:00:00
abstract：:The in situ rat gut technique was used to study the effects of hypothermia on the intestinal absorption of a 1 mg/ml solution of sodium pentobarbital in 0.01 M phosphate buffer (pH 6.0). Male Sprague-Dawley rats weighing between 300 and 370 g were exposed to an atmosphere of helox (helium:oxygen, 80:20) at 0-4 degrees...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1016416413780
更新日期：1987-06-01 00:00:00
abstract：PURPOSE:The pharmacokinetics, analgesic efficacy, and irritancy potential of Buprederm, a new transdermal delivery system of buprenorphine, was evaluated. METHODS:Single and multiple dose pharmacokinetic studies were conducted in mice and rabbits. The analgesic efficacy and skin irritation potential were determined by...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-007-9470-6
更新日期：2008-05-01 00:00:00
abstract：:A method for determination of absorption rate and bioavailability was developed to reduce the influence of intraindividual variability and applied to the absolute intraperitoneal availability of lithium in the rat. In this method the test and the reference doses are given with a few hours' interval, and the resulting ...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1015939917646
更新日期：1989-09-01 00:00:00
abstract：PURPOSE:Because interleukin-10 (IL-10) seems a promising new antifibrotic drug, we investigated the pharmacokinetic and biodistribution profile of this potent therapeutic cytokine in rats with extensive liver fibrosis (BDL-3). IL-10 receptor expression was also determined in relation to these aspects. METHODS:To study...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/b:pham.0000048199.94510.b0
更新日期：2004-11-01 00:00:00
abstract：PURPOSE:The purpose of this study is to show how disaccharides differ in their ability to protect lyophilized β-galactosidase from enzymatic activity loss and secondary structure changes during storage. METHODS:β-galactosidase was lyophilized with trehalose, sucrose, cellobiose or melibiose at 2:1, 20:1 and 40:1 excip...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-010-0300-x
更新日期：2011-03-01 00:00:00
abstract：PURPOSE:In this work a novel pH-responsive nanoscale polymer network was investigated for potential applications in nanomedicine. These consisted of a polybasic core surface stabilized with poly(ethylene glycol) grafts. The ability to control swelling properties via changes in core hydrophobicity and crosslinking feed ...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-008-9704-2
更新日期：2009-01-01 00:00:00
abstract：PURPOSE:To investigate the possible pathways for transport of wheat germ agglutinin conjugated PEG-PLA nanoparticles (WGA-NP) into the brain after nasal administration. METHODS:The nose-to-brain pathways were investigated using WGA-NP containing 6-coumarin (as a fluorescent marker) and (125)I-labeled WGA-NP. Ex vivo i...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-011-0641-0
更新日期：2012-02-01 00:00:00
abstract：:A method is described for the assay of phenobarbital N-glucosylation using UDP-D-[6-3H]glucose. The radioactive phenobarbital N-glucoside conjugates [(5R)-PBG, (5S)-PBG] formed during the incubations were resolved from each other and from uncharacterized radioactive products by semipreparative HPLC. The product ratio ...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1015889707922
更新日期：1992-05-01 00:00:00
