Abstract:
:The number of older people globally is increasing, contributing to a growing burden of morbidity and mortality. With this shift in population demographic, comes a new challenge in terms of appropriate healthcare for the over 65 years age group. As medication is the principal therapeutic intervention, it is essential that it be fully optimised, to meet the needs of this heterogeneous population. The most common routes of drug administration are oral and injectable, which may display some limitations for older people, in cases of dysphagia or frailty for example. This review considers alternative methods of drug delivery to the norm, specifically discussing the nasal, pulmonary and transdermal routes, as well as novel orally disintegrating tablets. The changing physiology as ageing occurs must be considered in the development of novel drug delivery devices. This review considers the various aspects of ageing that will influence future drug formulation design and development.
journal_name
Int J Pharmjournal_title
International journal of pharmaceuticsauthors
Quinn HL,Hughes CM,Donnelly RFdoi
10.1016/j.ijpharm.2016.01.050subject
Has Abstractpub_date
2016-10-30 00:00:00pages
366-373issue
2eissn
0378-5173issn
1873-3476pii
S0378-5173(16)30050-3journal_volume
512pub_type
杂志文章,评审abstract::Amorphous lactose will crystallise rapidly if its glass transition temperature is reduced below its storage temperature. This is readily achieved by storing samples at ambient temperature and a relative humidity (RH) of greater than 50%. If the sample is monitored in an isothermal microcalorimeter as it crystallises, ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2004.07.016
更新日期:2004-10-13 00:00:00
abstract::The study investigated the effects of different combined top-down and bottom-up nanocrystallization technologies on particle size and solid state of avanafil nanoparticles. Combined antisolvent precipitation-ultrasonication (sonoprecipitation) technique was adopted to prepare 18 formulas according to 32.21 factorial d...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2016.12.012
更新日期:2017-01-30 00:00:00
abstract::Dendrimers are considered versatile carriers especially for the treatment of diseases like cancer, AIDS, malaria etc. Cancer is a worldwide threat particularly in developing countries. A breakthrough research in this regard is a prime requirement. In the present study, folic acid was conjugated to fifth generation pol...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2010.04.002
更新日期:2010-06-30 00:00:00
abstract::Intravaginal rings (VRs) have been widely reported for administration of pharmaceutical drugs - most notably estrogens, progestogens and antiretrovirals - to the vagina for clinical benefit. Here, for the first time, we describe the design, manufacture and preclinical testing of VRs for sustained/controlled release of...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2018.07.053
更新日期:2018-10-05 00:00:00
abstract::The stratum corneum possesses a very heterogenous structure. As such a diffusing molecule can access a number of different pathways. It is probable that the excellent barrier properties of the stratum corneum result from a tortuous diffusional pathway around the dead cells. However, there are considerable problems in ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/s0378-5173(99)00161-1
更新日期:1999-10-15 00:00:00
abstract::Composite dispersions of chitosan (CS), a positively charged polymer, and magnesium aluminum silicate (MAS), a negatively charged clay, were prepared and rheology, flocculate size and zeta potential of the CS-MAS dispersions were investigated. High and low molecular weights of CS (HCS and LCS, respectively) were used ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2007.09.038
更新日期:2008-03-03 00:00:00
abstract::To evaluate relationships between the extent of protein-excipient interactions, structural relaxation of an amorphous matrix, and the physico-chemical stability of a protein, human growth hormone (hGH) was lyophilized with sucrose and trehalose in a 1:2 weight ratio. The protein-excipient interactions were analyzed im...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2008.02.022
更新日期:2008-06-24 00:00:00
abstract::In this work calcium stearate (CaSt) multi-particulates loaded with codeine phosphate (COP) were developed in an attempt to provide extended release (ER) combined with alcohol dose dumping (ADD) resistance. The pellets were prepared via wet/extrusion spheronization and ER characteristics were obtained after fluid bed ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2016.05.049
更新日期:2016-07-25 00:00:00
abstract::Since the application of nanotechnology to drug delivery, both polymer-based and lipid-based nanocarriers have demonstrated clinical benefits, improving both drug efficacy and safety. However, to further address the challenges of the drug delivery field, hybrid lipid-polymer nanocomposites have been designed to merge ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2020.119467
更新日期:2020-07-30 00:00:00
abstract::Implantable polymeric device that can release chemotherapeutic agent directly into central nervous system (CNS) has had an impact on malignant glioma therapy. The purpose of our study was to develop an implantable polymeric device, which can release intact 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) for long-term peri...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/s0378-5173(02)00543-4
更新日期:2003-01-30 00:00:00
abstract::We studied optimized conditions for preparing ternary hot extrudates (HEs) of glibenclamide (GLB)/polyvinylpyrrolidone (PVP)/sodium dodecyl sulfate to generate stable nanocrystal suspensions following aqueous dispersion. Raman and solid-state NMR measurements of ternary HEs prepared by altering HE conditions revealed ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2020.120003
更新日期:2020-12-15 00:00:00
abstract::It has been reported that the degree of particle agglomeration in fluidized bed coating is greatly affected by the spray mist size of coating solution. However, the mist size has generally been measured in open air, and few reports have described the measurement of the mist size in a chamber of the fluidized bed, in w...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/s0378-5173(98)00370-6
更新日期:1999-02-01 00:00:00
abstract::In the present study, the features of two new thiolated polymers--the so-called thiomers--were investigated. Mediated by a carbodiimide cysteamine was covalently attached to sodium carboxymethylcellulose (Na-CMC) and neutralised polycarbophil (Na-PCP). Depending on the weight-ratio polymer to cysteamine during the cou...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/s0378-5173(01)00955-3
更新日期:2002-03-02 00:00:00
abstract::The occurrence of lung cancer is linked with tobacco smoking, mainly through the generation of polycyclic aromatic hydrocarbons (PAHs). Elevated activity of cytochrome P4501A1 (CYP1A1) plays an important role in the metabolic processing of PAHs and its carcinogenicity. The present work aimed to investigate the role of...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2019.04.078
更新日期:2019-07-20 00:00:00
abstract::Influenza vaccines administered intramuscularly exhibit poor mucosal immune responses in the respiratory tract which is the prime site of the infection. Intranasal vaccination is a potential route for vaccine delivery which has been demonstrated effective in inducing protective immune responses in both systemic and mu...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2020.119348
更新日期:2020-05-30 00:00:00
abstract::Two different PLGA samples (Resomer 502 and Resomer 506), either alone or in combinations, were used to prepare microcapsules. Microcapsules were prepared using a double emulsion solvent evaporation technique. The efficiency of encapsulation increased significantly when a mixture of 1 part Resomer 506 and 7 parts Reso...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2003.10.019
更新日期:2004-02-11 00:00:00
abstract::Alkylcarbonates of gamma-cyclodextrins were produced and their inclusion complexes with four poorly water-soluble drugs of different structures and solubilities were prepared. The alkylcarbonates and the alkylcarbonate drug complexes were characterized by DSC and XRPD; the physical mixtures were used as control. Solub...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2007.03.001
更新日期:2007-07-18 00:00:00
abstract::In this work a protocol to validate analytical procedures for the quantification of drug substances formulated in polymeric systems that comprise both drug entrapped into the polymeric matrix (assay:content test) and drug released from the systems (assay:dissolution test) is developed. This protocol is applied to the ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2013.09.026
更新日期:2013-12-15 00:00:00
abstract::The aim of the present work was to study the influence of surface hydrophilicity of biodegradable polymeric nanoparticles on cellular uptake by Caco-2 cells. Poly(D,L-lactide-co-glycolide acid) particles loaded with a fluorescent dye, 3,3'-dioctadecyloxacarbo-cyanine perchlorate (DiO), were prepared by the emulsion-ev...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2009.10.008
更新日期:2010-05-05 00:00:00
abstract::TXA497 is representative of a new class of guanidinomethyl biaryl compounds that exhibit potent bactericidal behavior against methicillin-resistant Staphylococcus aureus (MRSA). In this study, we compared the anti-staphylococcal, skin deposition, and skin permeation properties of TXA497 and the topical anti-MRSA antib...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2014.09.033
更新日期:2014-12-10 00:00:00
abstract::Flurbiprofen loaded rigid and elastic vesicles comprising the bilayer-forming surfactant sucrose-ester laurate were prepared by the film rehydration and extrusion method. The charge-inducing agent sodium dodecyl sulfate, and the micelle-forming surfactants, sorbitan monolaurate, polyethylene glycol monolaurate, and po...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2013.12.051
更新日期:2014-04-10 00:00:00
abstract::Pectin-based resistant, interactive and versatile hydrogel vehicles for oral administration have been prepared. These systems are thought to be versatile enough to allow the inclusion of substances (such as the surfactants tested: Pluronic, Tween, Na Lauryl sulphate) that may contribute to tailor the drug release patt...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2014.12.045
更新日期:2015-02-20 00:00:00
abstract::In order to improve the dissolution and absorption properties of loviride, a poorly soluble antiviral agent, sucrose co-freeze-dried nanopowders were prepared, characterized and evaluated. Tween 80/poloxamer 188-stabilized nanosuspensions were produced on a laboratory scale using media milling. The milling process was...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2007.02.005
更新日期:2007-06-29 00:00:00
abstract::Solid lipid nanoparticles (SLNs) conjugated with tamoxifen (TX) and lactoferrin (Lf) were applied to carry anticancer carmustine (BCNU) across the blood-brain barrier (BBB) for enhanced antiproliferation against glioblastoma multiforme (GBM). BCNU-loaded SLNs with modified TX and Lf (TX-Lf-BCNU-SLNs) were used to pene...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2015.12.054
更新日期:2016-02-29 00:00:00
abstract::Water-in-oil-in-water (w/o/w) double emulsions are potential for enhancing oral bioavailability of drugs with high solubility and low permeability, but their industrial application is limited due to the instability. Herein, we developed a novel formulation, self-double-emulsifying drug delivery systems (SDEDDS) by for...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2011.02.047
更新日期:2011-05-16 00:00:00
abstract::The objective of the present study was to determine the optimum composition for sustained-release of tamsulosin hydrochloride from microparticles intended for orally disintegrating tablets. Microparticles were prepared from an aqueous ethylcellulose dispersion (Aquacoa®), and an aqueous copolymer based on ethyl acryla...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2011.01.053
更新日期:2011-04-15 00:00:00
abstract::The study reports pig-skin permeation and skin accumulation of miconazole nitrate (MCZ) from positively charged microemulsions containing water, 1-decanol/1-dodecanol (2:1, w/w), lecithin and/or decyl polyglucoside at different weight ratios, propylene glycol, 1,2 hexanediol and a cationic charge-inducing agent (stear...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2007.05.065
更新日期:2008-01-04 00:00:00
abstract::The simultaneous skin permeation of drug and penetration enhancer have been studied in vitro. Simple formulations of mefenamic acid in PEG400 incorporating various proportions of ethanol or 1,8-cineole were prepared and applied to porcine ear skin in diffusion cells under infinite conditions. Receptor phases were assa...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2006.05.018
更新日期:2006-09-14 00:00:00
abstract::The physico-chemical behaviour of trehalose dihydrate during storage at low relative humidity and ambient temperature was investigated, using a combination of techniques commonly employed in pharmaceutical research. Weight loss, water content determinations, differential scanning calorimetry and X-ray powder diffracti...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2006.01.026
更新日期:2006-04-26 00:00:00
abstract::Vesicular systems have shown their ability to increase dermal and transdermal drug delivery. Their mechanism of drug transport into and through the skin has been investigated but remains a much debated question. Several researchers have outlined that drug penetration can be influenced by modifying the surface charge o...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2011.03.049
更新日期:2011-06-15 00:00:00