Abstract:
:Antibiotic-loaded acrylic bone cements (ALABCs) are well-established and cost-effective materials to control the occurrence of bone and joint infections. However, the inexistence of alternative antibiotics other than those already commercially available and the poor ability to bind to bone tissue hampering its biological function are still major drawbacks of ALABCs clinical application. The concept of this research work is to develop a novel bone cement (BC) drug delivery system composed by Mg- and Sr-doped calcium phosphate (CaP) particles as drug carriers loaded into a lactose-modified acrylic BC, which, to the best of our knowledge, has never been reported. CaP particles are known to promote bone ingrowth and current research is focused on using these carriers as antibiotic delivery systems for the treatment of bone infections, like osteomyelitis. Levofloxacin is a fluoroquinolone with anti-staphylococcal activity and adequate penetration into osteoarticular tissues and increasingly being recommended to manage bone-related infections. Also, the lactose-modified BC matrix, with a more porous structure, has already proved to enhance antibiotic release from the BC inner matrix. This novel BC composite biomaterial has shown improved mechanical integrity, biocompatibility maintenance, and sustained release of levofloxacin, with concentrations over the minimum inhibitory concentration values after a 48h while maintaining antibacterial activity over an 8-week period against Staphyloccocus aureus and Staphyloccocus epidermidis, common pathogens associated with bone infections.
journal_name
Int J Pharmjournal_title
International journal of pharmaceuticsauthors
Matos AC,Marques CF,Pinto RV,Ribeiro IA,Gonçalves LM,Vaz MA,Ferreira JM,Almeida AJ,Bettencourt AFdoi
10.1016/j.ijpharm.2015.05.038subject
Has Abstractpub_date
2015-07-25 00:00:00pages
200-8issue
1-2eissn
0378-5173issn
1873-3476pii
S0378-5173(15)00457-3journal_volume
490pub_type
杂志文章abstract::Ciprofloxacin (CPX) physicochemical properties, mainly hydrophobicity and microspeciation, appear to be related with the ability of this drug to adsorb and diffuse through lipid environments. We have combined the information from fluorescence anisotropy, quenching and epifluorescence of phospholipid monolayers, to exp...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/s0378-5173(02)00633-6
更新日期:2003-02-18 00:00:00
abstract::Selective relaxation rate measurements effectively proved the affinity of dexamethasone 21-phosphate disodium salt for quaternary ammonium-chitosan conjugates, their thiolated derivatives and the corresponding nanostructured aggregates. Affinity was also probed by dynamic dialysis. The release profile of dexamethasone...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2013.12.018
更新日期:2014-01-30 00:00:00
abstract::Endothelium is an important target for drug or gene therapy because of its important role in the biological system. In this paper, we have characterized nanoparticle uptake by endothelial cells in cell culture. Nanoparticles were formulated using poly DL-lactide-co-glycolide polymer containing bovine serum albumin as ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/s0378-5173(01)00923-1
更新日期:2002-02-21 00:00:00
abstract::Remarkable efforts are currently devoted to the area of nanodiamonds (NDs) research due to their superior properties viz: biocompatibility, minute size, inert core, and tunable surface chemistry. The use of NDs for the delivery of anticancer drugs has been at the forefront of NDs applications owing to their ability to...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章,评审
doi:10.1016/j.ijpharm.2018.12.090
更新日期:2019-03-10 00:00:00
abstract::Mucoadhesive olaminosomes are novel nanocarriers designed to control agomelatine release and enhance its bioavailability. Olaminosomes were prepared using oleic acid, oleylamine and sorbitan monooleate adopting thin film hydration technique. Chitosan HCl was added to impart the mucoadhesive properties to the olaminoso...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2019.01.070
更新日期:2019-04-05 00:00:00
abstract::This paper first provides that Chinese yam polysaccharide (CYP) is encapsulated by PLGA using a double emulsion solvent evaporation method and aims to screen the optimal preparation of CYP-PLGA nanoparticles (CYPP) using response surface methodology (RSM). The volume ratio of the internal water phase to the organic ph...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2016.06.130
更新日期:2016-09-10 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::Insulin has been encapsulated in poly(lactic-co-glycolic acid) (PLGA) microspheres by solid-in-oil-in-oil (S/O/O) emulsion technique using DMF/corn oil as new solvent pairs. To get better encapsulation efficiency, insulin nanoparticles were prepared by the modified isoelectric point precipitation method so that it had...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2009.05.021
更新日期:2009-08-13 00:00:00
abstract::Intracranial injection of the rodent adapted CAM/RB strain of measles virus (MV) induces encephalitis in CBA/ca mice. It has already been shown that cyclodextrins can be used as carriers to increase the antiviral activity of ribavirin (RBV) against MV in cellular model. In this study, the antiviral activity of a RBV/a...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2008.01.043
更新日期:2008-06-05 00:00:00
abstract::Isoniazid (INH) is a first-line therapy for bone tuberculosis (TB), but its clinic benefits are limited by severe side-effects after long-time administration. While nano-drug delivery systems present as promising strategies for INH delivery, the therapeutic efficacies are usually suboptimal due to ineffective drug acc...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2018.12.083
更新日期:2019-03-10 00:00:00
abstract::Docetaxel (DTX) is one of the important antitumor drugs, being used in several common chemotherapies to control leading cancer types. Severe toxicities of the DTX are prominent due to sudden parenteral exposure of desired loading dose to maintain the therapeutic concentration. Field of nanotechnology is leading to res...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章,评审
doi:10.1016/j.ijpharm.2017.07.018
更新日期:2017-08-30 00:00:00
abstract::The objective of this investigation was to develop solid lipid nanoparticles (SLNs) of penciclovir and evaluate the potential of SLNs as the carrier of penciclovir for topical delivery. Penciclovir-loaded SLNs were prepared by a double (W/O/W) emulsion technique. The SLNs presented spherical with the mean diameter of ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2009.01.014
更新日期:2009-05-08 00:00:00
abstract::Symprove, a multi-strain probiotic, has been shown to exert a mild anti-inflammatory effect in patients with ulcerative colitis (UC). We examined stool samples from 3 patients with UC in order to create microbiotas in an in-vitro gut model. The effects of Symprove on bacterial diversity and metabolic activity in the m...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2020.119648
更新日期:2020-09-25 00:00:00
abstract::Lipid-based liquid crystalline nanoparticles (LCNPs) have attracted growing interest as a new drug nanocarrier system for improving bioavailability for both hydrophilic and hydrophobic drugs. In this study, self-assembled LCNPs based on soy phosphatidyl choline and glycerol dioleate, which was known possessing low tox...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2011.12.058
更新日期:2012-03-15 00:00:00
abstract::A green and mild approach for the preparation of reduced graphene oxide (rGO) was proposed by using riboflavin-5'-phosphate sodium salt dihydrate as a reducing reagent and stabilizer without any other reagent. The fabricated nano-rGO was systematically evaluated for its application as nano-carrier for pH-sensitive dru...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2015.10.081
更新日期:2015-12-30 00:00:00
abstract::Resistance to antiepileptic drugs (AEDs) is a major clinical problem. The overexpression of P-glycoprotein (Pgp), one of the main transporters limiting the entry of xenobiotics into the brain, is among the factors contributing to the AED resistance. Presently, there is no consensus on the interaction of carbamazepine ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2018.05.023
更新日期:2018-08-25 00:00:00
abstract::A study was carried out in human volunteers to investigate whether ileal brake activators could alter the bioavailability of atenolol from the small intestine by slowing intestinal transit and thereby increasing the time available for absorption. Oleic acid and a monoglyceride were formulated into modified release cap...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/s0378-5173(02)00393-9
更新日期:2002-11-06 00:00:00
abstract::Benzimidazole 2-carbamates, such as albendazole (ABZ) and mebendazole (MBZ), used for the treatment of helmintic infections, have low aqueous solubility and poor bioavailability, both of which lead to high interindividual variability when used for human systemic helmintiosis; therefore, it is necessary to search for n...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2007.05.013
更新日期:2007-10-01 00:00:00
abstract::Finasteride is indicated orally in the treatment of androgenetic alopecia and some other pilosebaceous unit (PSU) disorders. We wished to investigate whether topical application of finasteride-containing vesicles (liposomes and niosomes) could enhance drug concentration at the PSU, as compared to finasteride hydroalco...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2006.05.041
更新日期:2006-10-12 00:00:00
abstract::A highly accurate nephelometric titration for the determination of promethazine hydrochloride and its preparations was presented. The titration operating conditions were studied and the solubility product constant of promethazine tetraphenylboron precipitation was determined. The result of the titration is comparable ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2005.05.043
更新日期:2005-09-30 00:00:00
abstract::We determined whether a single intratracheal and subcutaneous administration of biocompatible and biodegradable vasoactive intestinal peptide self-associated with sterically stabilized liposomes (VIP-SSL) normalizes mean arterial pressure (MAP) in spontaneously hypertensive hamsters (SHH). We found that VIP-SSL (0.1 n...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2006.02.028
更新日期:2006-06-19 00:00:00
abstract::The aim of this work was to evaluate the potentiality to control the drug release of a new architecture of microparticles organized at the nanoscopic scale by assembling polymeric nanocapsules at the surface of drug-loaded xerogels. Xerogel was prepared by sol-gel method using sodium diclofenac, as hydrophilic drug mo...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2008.02.005
更新日期:2008-06-24 00:00:00
abstract::Sustained release of active interferon-α (IFN-α) has been achieved from core-shell nanoparticles (NPs) prepared by aqueous precipitation of IFN-α-enriched human serum albumin (HSA-IFN-α) and layer-by-layer (L-b-L) by coating of the IFN-α NPs with poly(sodium-4-styrene) sulphonate (PSS) and chitosan (Chit). The concent...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2019.118825
更新日期:2020-01-05 00:00:00
abstract::Achieving stable, efficient and non-toxic pulmonary gene delivery is most challenging requirement for successful gene therapy to lung. Composite nanoparticles (NPs) of the poly(lactic-co-glycolic acid) (PLGA) and cationic polymer polyethyleneimine (PEI) is an efficient alternative to viral and liposomal vectors for th...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2017.03.094
更新日期:2017-05-30 00:00:00
abstract::A novel delivery concept based on the encapsulation of liposomes in biodegradable dextran microspheres was developed. The microspheres were prepared using a two-phase system, consisting of water/poly(ethylene glycol), and water/methacrylated dextran. Liposomes were encapsulated almost quantitatively and in their intac...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/s0378-5173(00)00625-6
更新日期:2001-02-19 00:00:00
abstract::In this proof-of principle study, we determined whether biocompatible, biodegradable and sterically stabilized phospholipid nanomicelles (SSNMs) improve viability and membrane integrity of cryopreserved oral keratinocytes. Cultured chemically transformed hamster oral keratinocytes were frozen gradually with and stored...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2007.02.002
更新日期:2007-06-29 00:00:00
abstract::The aim of this study was to apply near-infrared (NIR) spectroscopy to the simultaneous in-line monitoring of two active pharmaceutical ingredients (APIs) in a pharmaceutical batch blending process. The formulation under study consisted of a high load API (A1), one polymer, a second API (A2) and one lubricant. Additio...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2013.04.078
更新日期:2013-07-15 00:00:00
abstract::Pharmaceutical powders are typically insulators consisting of relatively small particles and thus they usually exhibit significant electrostatic charging behaviours. In the inhalation field, the measurement of electrostatic charge is an imperative stage during pharmaceutical formulation development. The electrostatic ...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章,评审
doi:10.1016/j.ijpharm.2016.01.076
更新日期:2016-04-30 00:00:00
abstract::Lipoproteins are naturally occurring nano sized transport vehicles in the human body. Therefore, lipoproteins could be applied as a drug carrier system. Additionally, several reports of apolipoprotein mediated blood-brain barrier (BBB) crossing suggest lipoprotein mimicking nanoparticles (NPs) as possible drug deliver...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2020.119821
更新日期:2020-08-28 00:00:00
abstract::In the current study, two series of antimicrobial dressings conjugated with silver sulfadiazine (SSD) and silver nanoparticles (AgNPs) were developed and evaluated for chronic wound healing. Highly porous polycaprolactone (PCL)/polyvinyl alcohol (PVA) nanofibers were loaded with different concentrations of SSD or AgNP...
journal_title:International journal of pharmaceutics
pub_type: 杂志文章
doi:10.1016/j.ijpharm.2019.04.068
更新日期:2019-06-10 00:00:00