Abstract：
:Sodium cromoglicate is an antiasthmatic and antiallergenic drug used in inhalation therapy and commonly administered by a dry powder inhaler. In the present study we sought to examine the feasibility of producing nanoporous microparticles (NPMPs) of this hydrophilic material by adaptation of a spray drying process previously applied to hydrophobic drugs, and to examine the physicochemical and in vitro deposition properties of the spray dried particles in comparison to a commercial product. The storage stability of successfully prepared NPMPs was assessed under a number of conditions (4°C with dessicant, 25°C at 60% relative humidity and 25°C with dessicant). Spray dried sodium cromoglicate was amorphous in nature. NPMPs of sodium cromoglicate displayed superior aerodynamic properties resulting in improved in vitro drug deposition, as assessed by Andersen Cascade Impactor and twin impinger studies, in comparison to the commercial product, Intal. Deposition studies indicated that porosity and sphericity were important factors in improving deposition properties. The optimum solvent system for NPMP production was water:methanol:n-butyl acetate, as spherical NPMPs spray dried from this solvent system had a higher respirable fraction than non-spherical NPMPs of sodium cromoglicate (spray dried from methanol:n-butyl acetate), non-porous sodium cromoglicate (spray dried from water) and micronised sodium cromoglicate (Intal). While particle morphology was altered by storage at high humidity (60% RH) and in vitro deposition performance deteriorated, it was possible to maintain NPMP morphology and aerosolisation performance by storing the powder with dessicant.
journal_name
Int J Pharmjournal_title
International journal of pharmaceuticsauthors
Nolan LM,Li J,Tajber L,Corrigan OI,Healy AMdoi
10.1016/j.ijpharm.2010.11.040subject
Has Abstractpub_date
2011-02-28 00:00:00pages
36-46issue
1-2eissn
0378-5173issn
1873-3476pii
S0378-5173(10)00889-6journal_volume
405pub_type
杂志文章abstract：:Silk fibroin (SF) and poly(lactide-co-glycolic acid) (PLGA) have been proved to be invaluable polymers in the field wound healing. This study aims at optimizing the electrospinning process of those polymers to make a hybrid membrane as a chronic wounds dressing. After characterizing the scaffolds, PLGA/SF (2:1), and P...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2014.07.021
更新日期：2014-10-01 00:00:00
abstract：:The effects of vehicles and penetration enhancers on the in vitro permeation of tenoxicam from saturated solutions through dorsal hairless mouse skin were investigated. Various types of vehicles, including ester-, alcohol-, and ether-types and their mixtures, were used as vehicles, and then a series of fatty acids and...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(02)00009-1
更新日期：2002-04-02 00:00:00
abstract：:The pharmacokinetics of NS-49, a newly developed phenethylamine class alpha(1A)-adrenoceptor agonist, was investigated in rats, rabbits, and dogs given intravenous and oral doses that have little effect on the renal blood flow rate (approximating the range of clinical doses). A three-compartment open model adequately ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(99)00184-2
更新日期：1999-09-20 00:00:00
abstract：:Freeze-drying of three different forms of gene delivery systems was performed using a controlled two-step drying process and 10% sucrose as lyoprotectant. Complexes of pCMVL plasmid with transferrin-conjugated polyethylenimine, adenovirus-enhanced transferrinfection consisting of pCMVL/transferrin-polylysine complexes...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(97)00244-5
更新日期：1997-11-28 00:00:00
abstract：:Despite their great potential, gene delivery polyplexes have a number of limitations, including their tendency for aggregation in vivo or upon storage. In previous studies, we could show that hydroxyethyl starch (HES)-decoration of polyplexes reduces aggregation in vitro and in vivo. The current study investigates the...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2014.04.020
更新日期：2014-07-20 00:00:00
abstract：:Spray drying is a well-established technology to produce inhalable dry powders. However, the amorphous nature of the particles typically obtained from the process can lead to physically and chemically unstable products. The purpose of this study was to investigate whether spray-drying could be used as a manufacturing ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2019.04.036
更新日期：2019-06-30 00:00:00
abstract：:Chemically modified tetracyclines (CMTs) have been reported to strongly inhibit proliferation and metastasis of various cancers, but their efficacy is restricted by poor water solubility. In the present study, a hydrophilic 4-dedimethylamino sancycline (CMT-3) loaded nanostructured lipid carrier (CMT-3/NLC) was produc...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2013.04.021
更新日期：2013-06-25 00:00:00
abstract：:Heart failure still represents the leading cause of death worldwide. Novel strategies using stem cells and growth factors have been investigated for effective cardiac tissue regeneration and heart function recovery. However, some major challenges limit their translation to the clinic. Recently, biomaterials have emerg...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章,评审
doi：10.1016/j.ijpharm.2016.10.061
更新日期：2017-05-25 00:00:00
abstract：:A unique polymer-based sustained-release implant was formulated using biodegradable hemostatic gauze as the scaffold. A piece of commercial gauze, Surgicel was coated with a poly(lactic-co-glycolic) acid (PLGA) solution in which drugs were loaded, followed by evaporating the solvent. Drug release kinetics from the PLG...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2007.12.019
更新日期：2008-05-01 00:00:00
abstract：:This paper examines a perspective to use newly engineered nanomaterials as effective and safe carriers for gene therapy of cancer. Three different groups of cationic dendrimers (PAMAM, phosphorus, and carbosilane) were complexed with anticancer siRNA and the biophysical properties of the dendriplexes created were anal...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2015.03.034
更新日期：2015-05-15 00:00:00
abstract：:The aim of this study is to develop an aqueous parenteral solution of docetaxel using prodrugs. Docetaxel (DTX) is a highly lipophilic drug and practically insoluble in water. To overcome insolubility of docetaxel, three kinds of docetaxel prodrugs were synthesized using succinyl linker such as DTX-G, DTX-L or DTX-S a...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2013.12.027
更新日期：2014-02-28 00:00:00
abstract：:We report the preparation and evaluation of flurbiprofen loaded-poly-epsilon-caprolactone nanospheres obtained by solvent displacement method. Characterization by thermal methods, infrared spectroscopy and X-ray diffraction analysis can reveal the dispersion state of the drug inside the nanospheres. Such information p...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(98)00381-0
更新日期：1999-03-01 00:00:00
abstract：:Isomalt, a sugar alcohol, was melt-extruded prior to compression in order to improve its tabletting properties. After fusion, crystalline isomalt was transformed into an amorphous form as shown by X-ray diffraction and differential scanning calorimetry (DSC). The tabletting properties of amorphous isomalt were dramati...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(01)00993-0
更新日期：2002-03-20 00:00:00
abstract：:Powder filled sachets containing a 3:1 (w/w) powder mixture of diacetylmorphine base and caffeine anhydrate were developed as a dosage form for smokable heroin used for the treatment of chronic, treatment-resistant heroin addicts. The powder mixture was filled into sachets using a micro dose auger filler machine. The ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2004.07.007
更新日期：2004-11-05 00:00:00
abstract：:Double-hydrophilic block copolymer composed of poly(N-vinylpyrrolidone) (PVP) and poly(styrene-alter-maleic anhydride) (PSMA) has been synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. Poly(N-vinylpyrrolidone)-block-poly(styrene-alter-maleic anhydride) (PVP-b-PSMA) thus formed was ...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2009.03.019
更新日期：2009-06-05 00:00:00
abstract：:Inadequate flowability of powders in industries during handling can cause many problems. For example, lack of flow from hoppers, poor tablet weight consistency, and low production rate in tableting. Many factors are known to commonly affect flow properties of powders, such as temperature, humidity and conditioning dur...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2021.120244
更新日期：2021-01-20 00:00:00
abstract：:The characterization of a pharmaceutical microemulsion system with glycerol monolaurate as oil, ethanol as cosurfactant, Tween 40 as surfactant, sodium diacetate and water, and the antimicrobial activities against Escherichia coli, Staphylococcus aureus, Bacillus subtilis, Candida albicans, Aspergillus niger and Penic...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2010.05.022
更新日期：2010-08-16 00:00:00
abstract：:Biocompatible microemulsions composed of Peceol(®), lecithin, ethanol and water developed for encapsulation of hydrophilic drugs were investigated. The binary mixture Peceol(®)/ethanol was studied first. It was shown that the addition of ethanol to pure Peceol(®) has a significant fluidifying and disordering effect on...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2014.07.018
更新日期：2014-11-20 00:00:00
abstract：:Little is known about chronopharmacokinetics of PDE V inhibitors in rats as well as in humans. Hence, the pharmacokinetics of DA-8159 and one of its metabolites, DA-8164, were investigated after intravenous and oral administration of DA-8159 at a dose of 30 mg/kg administered at 10:00 h versus 22:00 h in rats. After i...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2005.03.006
更新日期：2005-05-30 00:00:00
abstract：:Well known aging problems with rubbery starch films are the migration of plasticizer and increased crystallinity leading to embrittlement. The effects of a combination of sorbitol and glycerol used as plasticizers on mechanical, moisture permeability and solid-state properties of rubbery amylose maize starch (Hylon VI...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(02)00585-9
更新日期：2003-01-30 00:00:00
abstract：:Twenty diclofenac sodium buccoadhesive discs containing Cp974p, polycarbophil, PEO, SCMC-medium viscosity (SCMC-MV), SCMC-ultrahigh viscosity (SCMC-UHV) or their combinations were prepared. These buccoadhesive discs were evaluated for release pattern, swelling capacity, surface pH, mucoadhesion performance, and in vit...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2004.07.033
更新日期：2004-11-22 00:00:00
abstract：:Autophagy is a lysosomal degradation pathway that acts as a cytoprotective mechanism causing treatment resistance in various cancer cells. Recent studies showed that hydroxychloroquine can inhibit the latter step of autophagy and therefore enhance the anti-glioma efficiency of ZD6474, a tyrosine kinase inhibitor. Howe...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2017.09.007
更新日期：2018-01-30 00:00:00
abstract：:Semifluorinated alkanes (SFAs) have been described as potential excipients for pulmonary drug delivery, but proof of their efficacy is still lacking. We tested whether SFA formulations with the test drug ibuprofen can be nebulised and evaluated their pharmacokinetics. Physico-chemical properties of five different ibup...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2011.10.051
更新日期：2012-01-17 00:00:00
abstract：:Release profiles of aspirin from hypromellose matrices in hydro-ethanolic media were studied. Percent aspirin released increased with increasing levels of ethanol in the dissolution media, correlating with the drug's solubility, however, dose dumping of aspirin did not occur. An initial rapid release was observed in m...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2006.09.055
更新日期：2007-03-06 00:00:00
abstract：:The influx of medicines from different sources into healthcare systems of developing countries presents a challenge to monitor their origin and quality. The absence of a repository of reference samples or spectra prevents the analysis of tablets by direct comparison. A set of paracetamol tablets purchased in Malaysian...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2011.05.057
更新日期：2011-08-30 00:00:00
abstract：:Although parabens have several features of ideal preservatives, different studies have shown that they may affect human health due to their estrogenic activity. Therefore, various strategies have been applied to reduce their skin penetration. However, the effect of paraben combinations on transdermal permeation has no...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2010.02.006
更新日期：2010-05-31 00:00:00
abstract：:The pharmacokinetic behavior of Gastrodin in rat plasma and cerebrospinal fluid (CSF) after intranasal and intravenous administration (50mg kg(-1)) was investigated. Intranasal administration of Gastrodin provided a comparable AUC in CSF compared with the intravenous administration. But Gastrodin level in plasma was v...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2007.03.041
更新日期：2007-08-16 00:00:00
abstract：:Econazole is a commonly used azole antifungal in clinical treatment of superficial fungal infections. It is generally used as conventional cream and gel preparations under the brand names of Spectazole (United States), Ecostatin (Canada), Pevaryl (Western Europe). Treatment efficiency of antifungal drugs depends on th...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章,评审
doi：10.1016/j.ijpharm.2015.09.015
更新日期：2015-11-10 00:00:00
abstract：:This study proposed a method to understand the surfactant role in the first step of the formulation of a novel generation of lipidic nanocapsules. A dynamic rheological protocol was applied using a pendant drop tensiometer in order to determine the interfacial properties of the initial mixture implied in the first for...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/s0378-5173(02)00144-8
更新日期：2002-08-21 00:00:00
abstract：:The present study focused on the development and optimization of glycerosomes for dermal delivery of fisetin. The fisetin loaded glycerosomes formulation was optimized by Box-Behnken design. The independent variables were the lipoid S 100, glycerol, and sonication time, whereas the dependent variables were the vesicle...
journal_title：International journal of pharmaceutics
pub_type： 杂志文章
doi：10.1016/j.ijpharm.2020.119125
更新日期：2020-03-30 00:00:00
