journal
MENU ▼
Read by QxMD icon Read
search

Journal of Liposome Research

journal
https://www.readbyqxmd.com/read/28874081/physicochemical-investigation-and-in-vivo-activity-of-anti-malarial-drugs-co-loaded-in-tween-80-niosomes
#1
Miloni Thakkar, Brijesh S
Drugs used for the treatment and prevention of malaria are often plagued by the problem of development of resistance. This has hampered their therapeutic efficiency and rendered them ineffective for monotherapy. However, if re-packaged and combined properly, many of these neglected anti-malarial drugs can possibly find their way back into the treatment regime. The present study evaluates the use of curcumin (CC) and primaquine (PRI) as an anti-malarial combination, packaged within niosomes, in comparison to their respective monotherapy options...
September 5, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28874072/liposomal-formulations-in-the-pharmacological-treatment-of-leishmaniasis-a-review
#2
Vanessa Ortega, Selma Giorgio, Eneida de Paula
Conventional chemotherapy for leishmaniasis includes considerably toxic drugs and reports of drug-resistance are not uncommon. Liposomal encapsulated drugs appear as an option for the treatment of leishmaniasis, providing greater efficacy for the active and reducing its side effects by promoting superior tissue absorption, favoring drug penetration into the macrophages, and retarding its clearance from the site of action. In this paper, a review on the advances achieved with liposome-based anti-leishmaniasis drug delivery systems is presented...
September 5, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28826287/docetaxel-loaded-nanostructured-lipid-carriers-functionalized-with-trastuzumab-herceptin-for-her2-positive-breast-cancer-cells
#3
Jaleh Varshosaz, Mohammad Ali Davoudi, Sara Rasoul-Amini
The aim of the present study was to prepare Herceptin targeted nanostructured lipid carriers (NLCs) of docetaxel (DTX). Herceptin was conjugated by chemical and physical methods to NLCs prepared by solvent extraction technique followed by probe sonication. Different types of fatty amines were used in construction of NLCs. The NLCs were characterized for their antibody coupling efficiency, particle size, zeta potential, polydispersity index, drug entrapment efficiency and drug release profiles. The toxicity of NLCs on MDA-MB-468 (HER2 negative receptor) and BT-474 (HER2 positive) breast cancer cell lines was evaluated by MTT assay...
August 21, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28826286/characterization-and-evaluation-of-stabilized-particulate-formulations-as-therapeutic-oral-vaccines-for-allergy
#4
Kan Kaneko, Arlene McDowell, Yasuyuki Ishii, Sarah Hook
Allergic conditions affect more than a quarter of the population in developed countries, but currently available treatments focus more on symptom relief than treating the underlying atopic condition. α-galactosylceramide (α-GalCer) is a potent immunomodulating compound that has been shown to have a regulatory effect when delivered systemically in nanoparticles. Parenteral delivery is not preferred for chronic conditions such as allergy, therefore the aim of this study was to determine if a regulatory response could be induced through oral administration in a model of atopy through incorporation of α-GalCer into stable particulate formulations (cationic liposomes, polymerized liposomes and poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs))...
August 21, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28826275/carboxylated-phytosterol-derivative-introduced-liposomes-for-skin-environment-responsive-transdermal-drug-delivery-system
#5
Naoko Yamazaki, Satoshi Yamakawa, Takumi Sugimoto, Yuta Yoshizaki, Ryoma Teranishi, Takaaki Hayashi, Aki Kotaka, Chiharu Shinde, Takayuki Kumei, Yasushi Sumida, Toru Shimizu, Yukihiro Ohashi, Eiji Yuba, Atsushi Harada, Kenji Kono
Transdermal drug delivery systems are a key technology for skin-related diseases and for cosmetics development. The delivery of active ingredients to an appropriate site or target cells can greatly improve the efficacy of medical and cosmetic agents. For this study, liposome-based transdermal delivery systems were developed using pH-responsive phytosterol derivatives as liposome components. Succinylated phytosterol (Suc-PS) and 2-carboxy-cyclohexane-1-carboxylated phytosterol (CHex-PS) were synthesized by esterification of hydroxy groups of phytosterol...
August 21, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28805117/fungal-fatal-attraction-a-mechanistic-review-on-targeting-liposomal-amphotericin-b-ambisome-%C3%A2-to-the-fungal-membrane
#6
Linda Soo Hoo
Liposomal amphotericin B (AmBisome(®)) is a lipid-based nanotherapeutic that is used successfully worldwide to treat a broad range of life-threatening invasive fungal infections. In subtropical regions, AmBisome is emerging as the treatment of choice for human parasitic protozoan pathogens such as those from the genus Leishmania. The key to the remarkable efficacy of AmBisome is attributed to its liposome based formulation to deliver a potent drug at high dosage with significantly reduced toxicity in patients with immunocompromised systems...
August 14, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28768431/adefovir-dipivoxil-loaded-proliposomal-powders-with-improved-hepatoprotective-activity-formulation-optimization-pharmacokinetic-and-biodistribution-studies
#7
Ghada A Abdelbary, Maha M Amin, Mohamed Y Zakaria, Sally A El Awdan
The present study aimed to prepare proliposomal formulae for improving the oral bioavailability of Adefovir Dipivoxil (AD), a nucleoside reverse transcriptase inhibitor effective against Hepatitis B virus (HBV). The prepared proliposomal formulae were characterized for entrapment efficiency (E.E.%), vesicle size and in-vitro drug release after reconstitution to conventional liposomes. The optimized formula (F9) with a maximum desirability value of 0.858 was selected having E.E.% of 71±3.3% with an average vesicle size of 164...
August 2, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28689479/introduction-to-the-25th-anniversary-ambisome%C3%A2-festschrift
#8
G M Jensen, K J Jalkanen
No abstract text is available yet for this article.
July 10, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28670949/preparation-and-optimization-of-rivastigmine-loaded-tocopherol-succinate-based-solid-lipid-nanoparticles
#9
Fariba Malekpour-Galogahi, Ashrafalasadat Hatamian-Zarmi, Fariba Ganji, Bahman Ebrahimi-Hosseinzadeh, Fahimeh Nojoki, Razi Sahraeian, Zahra Beagom Mokhtari-Hosseini
Rivastigmine hydrogen tartrate (RHT) is a pseudo-irreversible inhibitor of cholinesterase, and is used for the treatment of Alzheimer's. However, RHT delivery to the brain is limited by the Blood-Brain Barrier (BBB). The purpose of this study was to improve the brain-targeting delivery of RHT by producing and optimizing rivastigmine hydrogen tartrate-loaded tocopherol succinate-based solid lipid nanoparticles (RHT-SLNs). RHT-SLNs were prepared using the microemulsion technique. The impact of significant variables such as surfactant concentration and drug/lipid ratio on the size of RHT-SLNs and their drug loading and encapsulation efficiency was analyzed using a five-level central composite design (CCD)...
July 2, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28641466/a-model-of-lipid-rearrangements-during-pore-formation-in-the-dppc-lipid-bilayer
#10
Artur Wrona, Krystian Kubica
CONTEXT: The molecular bases of pore formation in the lipid bilayer remain unclear, as do the exact characteristics of their sizes and distributions. To understand this process, numerous studies have been performed on model lipid membranes including cell-sized giant unilamellar vesicles (GUV). The effect of an electric field on DPPC GUV depends on the lipid membrane state: in the liquid crystalline phase the created pores have a cylinder-like shape, whereas in the gel phase a crack has been observed...
June 23, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28627268/the-significance-of-drug-to-lipid-ratio-to-the-development-of-optimized-liposomal-formulation
#11
Maria Chountoulesi, Nikolaos Naziris, Natassa Pippa, Costas Demetzos
Liposomes are considered to be one of the most extensively investigated drug delivery nanosystems. Each drug can be loaded either in the liposomal hydrophilic core or within the lipidic bilayer and delivered eventually to the proper site into the organism. There are already many marketed approved liposomal products. The development of a liposomal product is a quite complicated process, while many critical parameters have to be investigated during the preparation process. The present study deals with the drug-to-lipid ratio (D/L ratio), which is a critical process parameter, expresses the actual capacity of the liposome to accommodate the drug and can play a key role at the optimization of every liposomal formulation...
June 18, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28618876/niosomes-for-oral-delivery-of-nateglinide-in-situ-in-vivo-correlation
#12
Amal A Sultan, Sanaa A El-Gizawy, Mohamed A Osman, Gamal M El Maghraby
Niosomes have been claimed to enhance intestinal absorption and to widen the absorption window of acidic drugs. This was reported after monitoring the intestinal absorption in situ. Accordingly, the aim of this work was to investigate the effect of niosomal encapsulation on intestinal absorption and oral bioavailability of nateglinide. This was conducted with the goal of correlation between in situ intestinal absorption and in vivo availability. The drug was encapsulated into proniosomes. The niosomes resulting after hydration of proniosomes were characterized with respect to vesicle size and drug entrapment efficiency...
June 15, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28539072/design-and-characterization-of-multifaceted-lyophilized-liposomal-wafers-with-promising-wound-healing-potential
#13
Amelia M Avachat, Pooja J Takudage
Various dressings are available to heal chronic wounds which many times fail to achieve the expected results. To overcome some of their drawbacks, formulation of a novel dressing; lyophilized liposomal wafers having better wound healing potential has been proposed in the present study. The drug incorporated in the formulation is gatifloxacin (GTX) which is a fourth-generation fluoroquinolone antibiotic having in vitro activity against both Gram-negative and Gram-positive bacteria. The formulation was designed in three stages where at first liposomes were prepared, the liposomes were converted to gel using chitosan and lastly this gel was lyophilized to form liposomal wafers...
June 15, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28067107/physical-properties-and-biological-interactions-of-liposomes-developed-as-a-drug-carrier-in-the-field-of-regenerative-medicine
#14
Sławomir Lewicki, Monika Leśniak, Eugeniusz Krzysztof Machaj, Małgorzata Antos-Bielska, Elżbieta Anna Trafny, Janusz Kocik, Zygmunt Pojda
Liposomes are used for encapsulation of the active compounds in different therapies, with the increasing frequency. The important areas of clinical applications of liposomes are cancer targeted treatment, antibiotic delivery or regenerative medicine. The liposomes can transfer both hydrophilic and hydrophobic compounds and have the lipid bilayer which imitates the cell membrane. Liposomes additionally may extend half-live period of drugs and protect them against the elimination in different ways, such as phagocytosis, enzymatic cleavage or exclusion by detoxification...
June 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28067087/oral-delivery-of-allopurinol-niosomes-in-treatment-of-gout-in-animal-model
#15
Neelu Singh, Poonam Parashar, Chandra Bhushan Tripathi, Jovita Kanoujia, Gaurav Kaithwas, Shubhini A Saraf
CONTEXT: Gout is a painful disorder which does not have an efficient delivery system for its treatment. OBJECTIVE: Development and in vitro, in vivo evaluation of allopurinol-loaded nonionic surfactant-based niosomes was envisaged. MATERIALS AND METHODS: Niosomes were prepared with Span 20 and Tween 20 (1:1 molar ratio) using ether injection method. The formulations were screened for entrapment efficiency, particle size analysis, zeta potential, release kinetics, in vivo activity, and stability studies...
June 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/27558454/design-and-development-of-ph-responsive-hspc-c12h25-paa-chimeric-liposomes
#16
Nikolaos Naziris, Natassa Pippa, Anastasia Meristoudi, Stergios Pispas, Costas Demetzos
The application of stimuli-responsive medical practices has emerged, in which pH-sensitive liposomes figure prominently. This study investigates the impact of the incorporation of different amounts of pH-sensitive polymer, C12H25-PAA (poly(acrylic acid) with a hydrophobic end group) in l-α-phosphatidylcholine, hydrogenated (Soy) (HSPC) phospholipidic bilayers, with respect to biomimicry and functionality. PAA is a poly(carboxylic acid) molecule, classified as a pH-sensitive polymer, whose pH-sensitivity is attributed to its regulative -COOH groups, which are protonated under acidic pH (pKa ∼4...
June 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/27250110/sensitization-of-multidrug-resistant-malignant-cells-by-liposomes-co-encapsulating-doxorubicin-and-chloroquine-through-autophagic-inhibition
#17
Menghua Gao, Yuzhen Xu, Liyan Qiu
Adenosine triphosphate (ATP)-binding cassette (ABC) transporters play a key role in the development of multidrug resistance (MDR) in cancer cells. P-glycoprotein (P-gp) and multidrug resistance-associated protein 1 (MRP1) are important proteins in this superfamily which are widely expressed on the membranes of multidrug resistance (MDR) cancer cells. Besides, upregulation of cellular autophagic responses is considered a contributing factor for MDR in cancer cells. We designed a liposome system co-encapsulating a chemotherapeutic drug (doxorubicin hydrochloride, DOX) and a typical autophagy inhibitior (chloroquine phosphate, CQ) at a weight ratio of 1:2 and investigated its drug resistance reversal mechanism...
June 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/27184460/pegylated-niosomes-mediated-drug-delivery-systems-for-paeonol-preparation-pharmacokinetics-studies-and-synergistic-anti-tumor-effects-with-5-fu
#18
Rui-Xi He, Xi Ye, Rui Li, Wei Chen, Tao Ge, Tian-Qing Huang, Xiang-Jiang Nie, He-Jun-Tao Chen, Dai-Yin Peng, Wei-Dong Chen
This work describes the preparation of a PEGylated niosomes-mediated drug delivery systems for Paeonol, thereby improving the bioavailability and chemical stability of Paeonol, prolonging its cellular uptake and enhancing its synergistic anti-cancer effects with 5-Fu. PEGylated niosomes, which are prepared from biocompatible nonionic surfactant of Spans 60 and cholesterol, and modified with PEG-SA. Pae-PEG-NISVs were evaluated in vitro and in vivo. The cytotoxicity of Pae-PEG-NISVs was investigated against HepG2 cells...
June 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/27079800/design-and-evaluation-of-proniosomes-as-a-carrier-for-ocular-delivery-of-lomefloxacin-hcl
#19
Rawia M Khalil, Ghada A Abdelbary, Mona Basha, Ghada E A Awad, Hadeer A El-Hashemy
The current investigation aims to develop and evaluate novel ocular proniosomal gels of lomefloxacin HCl (LXN); in order to improve its ocular bioavailability for the management of bacterial conjunctivitis. Proniosomes were prepared using different types of nonionic surfactants solely and as mixtures with Span 60. The formed gels were characterized for entrapment efficiency, vesicle size, and in vitro drug release. Only Span 60 was able to form stable LXN-proniosomal gel when used individually while the other surfactants formed gels only in combination with Span 60 at different ratios...
June 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/27050330/structures-similar-to-lipid-emulsions-and-liposomes-dipalmitoylphosphatidylcholine-cholesterol-tween-20-span-20-or-tween-80-span-80-in-aqueous-media
#20
Carlos Juárez-Osornio, Jesús Gracia-Fadrique
In the present work, we show that we obtained nanometric structures made of water, 1,2-dipalmitoyl-sn-glycero-3-phosphatidylcholine (DPPC), cholesterol (Chol), and a mixture of ethoxylated and non-ethoxylated sorbitan fatty acid esters (Tween 20, Span 20, Tween 80, and Span 80) by mixing all of them near the cloud point temperature (cp) of the ethoxylated surfactant. The influence that the constituents had on the size of the particle was determined by a pseudo-ternary phase diagram of water/Tween-Span/DPPC-Chol; the colloidal particles obtained were studied by differential scanning calorimetry, confocal fluorescence microscopy, scanning electron microscopy, and atomic force microscopy...
June 2017: Journal of Liposome Research
journal
journal
30359
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"