Abstract：
:The stability of an antibiotic formulation (clindamycin phosphate in dextrose), which is stable at room temperature, was assessed by nonisothermal kinetic analysis at elevated temperatures. A preliminary study, conducted to establish apparent rate order, verified the appropriateness of a first-order kinetic model. The test formulation was then heated linearly from 70 to 90 degrees C over 12 hr. Data (drug concentration, temperature, and time) were fitted to the first-order model using nonlinear least-squares regression. Arrhenius parameter estimates obtained from three nonisothermal trials, and rate constants at 25 degrees C derived by extrapolation, demonstrated acceptable reproducibility and were in agreement with values derived from isothermal experiments at 30, 45, 55, 65, and 75 degrees C. First-order rate constants obtained from studies conducted for 20 months at 25 degrees C were in accord with isothermal and nonisothermal results.
journal_name
Pharm Resjournal_title
Pharmaceutical researchauthors
Kipp JE,Hlavaty JJdoi
10.1023/a:1015840320410subject
Has Abstractpub_date
1991-05-01 00:00:00pages
570-5issue
5eissn
0724-8741issn
1573-904Xjournal_volume
8pub_type
杂志文章abstract：PURPOSE:Ruthenium complex is a potentially theranostic agent for cancer imaging and therapy, however its application is limited due to poor water-solubility and lack of tumor selectivity. To overcome the above drawbacks, pH-sensitive nanocapsule as a novel targeting carrier was designed to deliver ruthenium complex for...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-016-2021-2
更新日期：2016-12-01 00:00:00
abstract：PURPOSE:The purpose of this study was to investigate the effects of formulation factors including varying wax concentration, drug loading and drug particle size, on drug release characteristics from both pure oil and gel formulations prepared with a combination of derivatized vegetable oil (Labrafil 1944 CS) and glycer...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1016209020160
更新日期：1995-06-01 00:00:00
abstract：:The crystal growth kinetics of theophylline monohydrate from aqueous buffered supersaturated solutions were investigated at 10, 20, 30, and 40 degrees C. Crystallization experiments were carried out isothermally at pH 6. During growth the crystal count and size distributions were monitored in situ. The growth rate was...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1015817109932
更新日期：1991-05-01 00:00:00
abstract：PURPOSE:Empirical formulae relate the mean size of primary droplets from jet and ultrasonic nebulizers to a fluid's physicochemical properties. Although the size selective "filtering" effects of baffling and evaporation may modify the secondary aerosol produced, this research sought to evaluate whether viscosity and su...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1016205520044
更新日期：1995-11-01 00:00:00
abstract：PURPOSE:The purpose of this study was to use a replicate designed trial to assess the overall, intra- and inter-subject variabilities in pharmacokinetic parameters of CGP 33101 after oral administration of tablets relative to that of powder suspended in water, and to determine the relative proportion of the intra-subje...
journal_title：Pharmaceutical research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1023/a:1016275402723
更新日期：1995-12-01 00:00:00
abstract：PURPOSE:Ultrasound can be used to release a therapeutic payload encapsulated within a perfluorocarbon (PFC) emulsion via acoustic droplet vaporization (ADV), a process whereby the PFC phase is vaporized and the agent is released. ADV-generated microbubbles have been previously used to selectively occlude blood vessels ...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-010-0277-5
更新日期：2010-12-01 00:00:00
abstract：:The physicochemical properties and crystal structures of the crystalline salts formed by the interaction of an achiral anion, salicylate, with homochiral and racemic ephedrinium and pseudoephedrinium cations were determined. The interaction of ephedrinium or pseudoephedrinium with salicylate in aqueous solution yielde...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1018945401484
更新日期：1994-11-01 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
pub_type： 杂志文章
doi：10.1007/s11095-007-9301-9
更新日期：2007-09-01 00:00:00
abstract：PURPOSE:This work explores the distribution of water and its effects on molecular mobilities in poly(vinylpyrrolidone) (PVP) glasses using molecular dynamics (MD) simulation technology. METHODS:PVP glasses containing 0.5% and 10% w/w water and a small amount of ammonia and Phe-Asn-Gly were generated. Physical aging pr...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-005-5277-5
更新日期：2005-08-01 00:00:00
abstract：PURPOSE:The rapid oxidation of rofecoxib under alkaline conditions has been previously reported. The oxidation was reported to involve gamma-lactone ring opening to an alcohol, which further oxidized to a dicarboxyclic acid. The oxidation was suspected to be mediated by peroxy radicals. This work further investigates t...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-005-6947-z
更新日期：2005-10-01 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:Novel therapeutics are greatly needed that target specific pathological receptors and pathways involved in Neuropathic Pain (NP). Extending our previous work published in this Journal on Group I metabotropic glutamate receptor (mGluR) modulators, we now investigate the therapeutic potential of niclosamide in mo...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-016-2027-9
更新日期：2016-12-01 00:00:00
abstract：PURPOSE:To engineer optimized near-infrared (NIR) active thermosensitive liposomes to potentially achieve image-guided delivery of chemotherapeutic agents. METHODS:Thermosensitive liposomes were surface-coated with either polyethylene glycol or dextran. Differential scanning calorimetry and calcein release studies wer...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-012-0738-0
更新日期：2012-08-01 00:00:00
abstract：PURPOSE:Changes in drug absorption and first-pass metabolism have been reported throughout the pediatric age range. Our aim is to characterize both intestinal and hepatic CYP3A-mediated metabolism of midazolam in children in order to predict first-pass and systemic metabolism of CYP3A substrates. METHODS:Pharmacokinet...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-018-2458-6
更新日期：2018-07-30 00:00:00
abstract：PURPOSE:The aim was to investigate the influence of polymer content and molecular weight on the morphology and heat- and moisture-induced transformations, as indicators of stability, of spray-dried composite particles of amorphous lactose and poly(vinylpyrrolidone) (PVP). METHODS:Amorphous lactose and composite partic...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1024462306941
更新日期：2003-07-01 00:00:00
abstract：:Effects of protease inhibitors and absorption enhancers on the absorption of salmon calcitonin (sCT) were evaluated after intratracheal coadministration to rats using the plasma Ca level as an index. Remarkable absorption enhancement could be attained with unsaturated fatty acids such as oleic acid and polyoxyethylene...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1018926007902
更新日期：1994-09-01 00:00:00
abstract：PURPOSE:Chitosan-based polymeric micelles (CBPMs) are considered as promising carriers for delivery of anticancer drugs, imaging agents and genes. To optimize the physicochemical, pharmaceutical and biological properties of CBPMs, the molecular mechanisms behind the self-assembly behavior of chitosan (CHI) amphiphilic ...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-015-1750-y
更新日期：2015-12-01 00:00:00
abstract：PURPOSE:To elucidate the apical and basolateral components of the total unstirred water layer in regular permeability experiment. METHODS:A novel stirring apparatus was constructed to remove the basolateral unstirred water layer. Caco-2 cells were used as the permeability barrier both in Transwell-type and side-by-sid...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-008-9573-8
更新日期：2008-07-01 00:00:00
abstract：PURPOSE:Anticancer chemotherapy usually involves the administration of several anticancer drugs that differ in their action mechanisms. Here, we aimed to test whether the combination of omacetaxine mepesuccinate (OMT) and doxorubicin (DOX) could show synergism, and whether the liposomal co-delivery of these two drugs c...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-014-1317-3
更新日期：2014-08-01 00:00:00
abstract：PURPOSE:To study the oxidative degradation of drugs using a hydrophilic free radical initiator, 2,2'-Azobis(-amidinopropane) dihydrochloride (AAPH). METHODS:AAPH was used as the free radical initiator to study oxidation of three model compounds (A, B, and C), which represent different oxidizable moieties. In the solut...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-004-1199-x
更新日期：2005-02-01 00:00:00
abstract：PURPOSE:Stable transformants expressing human multidrug resistance 1 (MDR1), monkey MDR1, canine MDR1, rat MDR1a, rat MDR1b, mouse mdr1a, and mouse mdr1b in LLC-PK1 were established to investigate species differences in P-glycoprotein (P-gp, ABCB1) mediated efflux activity. METHODS:The seven cDNAs of MDR1 from five an...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-006-0285-7
更新日期：2006-07-01 00:00:00
abstract：PURPOSE:To identify the aggregation mechanism and the stability characteristics of three different monoclonal antibodies under acidic conditions. METHODS:The aggregation kinetics is analyzed by a combination of light scattering, size exclusion chromatography and fluorescence techniques and the aggregation data are cor...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-012-0885-3
更新日期：2013-03-01 00:00:00
abstract：:The mechanism of release from sustained-release adinazolam mesylate tablets was assessed by the Higuchi equation and by analysis of drug release profiles through 60% released using the Peppas equation. Computed values of the diffusional exponent, n, ranged from 0.59 to 0.66. Values of n in this range are consistent wi...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1015834114359
更新日期：1991-12-01 00:00:00
abstract：:The binding of diflunisal to hydroxypropyl-beta-cyclodextrin (HP beta CD), bovine serum albumin (BSA), human serum albumin (HSA), normal human plasma, and mixed solutions of HP beta CD/protein was studied at 25 degrees C, pH 7.4, by potentiometry using an electrode selective to diflunisal. The experimental data for di...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1018901912619
更新日期：1994-01-01 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
pub_type： 杂志文章
doi：10.1023/a:1016295907266
更新日期：1995-12-01 00:00:00
abstract：PURPOSE:Tumor vascular normalization by antiangiogenic agents may increase tumor perfusion but reestablish vascular barrier properties in CNS tumors. Vascular priming via nanoparticulate carriers represents a mechanistically distinct alternative. This study investigated mechanisms by which sterically-stabilized liposom...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-012-0823-4
更新日期：2012-12-01 00:00:00
abstract：PURPOSE:To investigate the influence of nanocarrier molecular size and shape on breast duct retention in normal rats using a non-invasive optical imaging method. METHODS:Fluorescein-labeled PEG nanocarriers of different molecular weights and shapes (linear, two-arm, four-arm, and eight-arm) were intraductally administ...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-012-0763-z
更新日期：2012-09-01 00:00:00
abstract：:For the last 50 years we have known of a broad-spectrum agent tilorone dihydrochloride (Tilorone). This is a small-molecule orally bioavailable drug that was originally discovered in the USA and is currently used clinically as an antiviral in Russia and the Ukraine. Over the years there have been numerous clinical and...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1007/s11095-020-02799-8
更新日期：2020-03-25 00:00:00
abstract：PURPOSE:To evaluate the potential of several bis-ester prodrugs of the antiviral agent 9-(2-phosphonylmethoxyethyl)adenine (PMEA, adefovir) to enhance the oral absorption of PMEA. METHODS:Caco-2 monolayers were used to estimate intestinal transport and metabolism of the bis(pivaloyloxymethyl)-ester [bis(POM)-] and a s...
journal_title：Pharmaceutical research
pub_type： 杂志文章
doi：10.1023/a:1011914618109
更新日期：1998-02-01 00:00:00
abstract：:New generation vaccines, particularly those based on recombinant proteins and DNA, are likely to be less reactogenic than traditional vaccines but are also less immunogenic. Therefore, there is an urgent need for the development of new and improved vaccine adjuvants. Adjuvants can be broadly separated into two classes...
journal_title：Pharmaceutical research
pub_type： 杂志文章,评审
doi：10.1023/a:1016104910582
更新日期：2002-06-01 00:00:00
