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https://www.readbyqxmd.com/read/29216513/a-novel-ultradeformable-liposomes-of-naringin-for-anti-inflammatory-therapy
#1
María Pleguezuelos-Villa, Silvia Mir-Palomo, Octavio Díez-Sales, M A Ofelia Vila Buso, Amparo Ruiz Sauri, Amparo Nácher
Ultradeformable liposomes were formulated using naringin (NA), a flavanone glycoside, at different concentrations (3, 6 and 9mg/mL). Nanovesicles were small size (∼100nm), regardless of the NA concentration used, and monodisperse (PI<0.30). All formulations showed a high entrapment efficiency (∼88%) and a highly negative zeta potential (around -30mV). The selected formulations were highly biocompatible as confirmed by in vitro studies using 3T3 fibroblasts. In vitro assay showed that the amounts (%) of NA accumulated in the epidermis (∼10%) could explain the anti-inflammatory properties of ultradeformable liposomes...
December 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29212581/cationic-liposome-oligonucleotide-complex-as-an-alternative-adjuvant-for-polyclonal-antibody-production-in-new-zealand-white-rabbits-oryctolaguscuniculus
#2
Erin S Lee, Clinton Sc Walker, Jacob E Moskowitz, Valerie A Johnson, Lon V Kendall
Because of their ideal size and temperament, rabbits are commonly used in polyclonal antibody production. Immunostimulatory adjuvants-such as Freund complete and incomplete adjuvants as well as various proprietary products-trigger a robust immune response, which increases antibody concentrations. However, these adjuvants can cause excessive soft tissue reactions, prompting concerns regarding animal wellbeing. This study assessed the safety and efficacy of cationic liposome- oligonucleotide complexes (CLDC) as an alternative adjuvant to conventional adjuvants...
December 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/29201374/liposomal-adjuvant-development-for-leishmaniasis-vaccines
#3
REVIEW
Anis Askarizadeh, Mahmoud Reza Jaafari, Ali Khamesipour, Ali Badiee
Leishmaniasis is a parasitic disease that ranges in severity from skin lesions to fatality. Since long-lasting protection is induced upon recovery from cutaneous leishmaniasis, development of an effective vaccine is promising. However, there is no vaccine for use in humans yet. It seems limited efficacy in leishmaniasis vaccines is due to lack of an appropriate adjuvant or delivery system. Hence, the use of particulate adjuvants such as liposomes for effective delivery to the antigen presenting cells (APCs) is a valuable strategy to enhance leishmaniasis vaccine efficacy...
August 2017: Therapeutic Advances in Vaccines
https://www.readbyqxmd.com/read/29195800/nir-triggered-liposome-gold-nanoparticles-entrapping-curcumin-as-in-situ-adjuvant-for-photothermal-treatment-of-skin-cancer
#4
Surya Prakash Singh, Syed Baseeruddin Alvi, Deepak Bharadwaj, Anula Divyash Singh, Sasidhar Venkata Manda, Rohit Srivastava, Aravind Kumar Rengan
We report the synthesis of a biodegradable liposome gold nanoparticles for curcumin (Au-Lipos Cur NPs) delivery. This entrapped curcumin served as an in situ adjuvant for photothermal therapy. Curcumin was loaded in Au-Lipos NPs with an encapsulation efficiency of ∼70%. The gold coating enabled the NPs to specifically absorb NIR light (780nm) by virtue of Surface Plasmon Resonance (SPR) and this light energy was converted to heat. The generated heat destabilized the liposomal core enhancing the release of encapsulated curcumin...
November 28, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29184410/anti-mrsa-malleable-liposomes-carrying-chloramphenicol-for-ameliorating-hair-follicle-targeting
#5
Ching-Yun Hsu, Shih-Chun Yang, Calvin T Sung, Yi-Han Weng, Jia-You Fang
Pathogens usually invade hair follicles when skin infection occurs. The accumulated bacteria in follicles are difficult to eradicate. The present study aimed to assess the cutaneous and follicular delivery of chloramphenicol (Cm)-loaded liposomes and the antibacterial activity of these liposomes against methicillin-resistant Staphylococcus aureus (MRSA). Skin permeation was conducted by in vitro Franz diffusion cell. The anti-MRSA potential was checked using minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), a well diffusion test, and intracellular MRSA killing...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29174441/hollow-microneedle-mediated-micro-injections-of-a-liposomal-hpv-e743-63-synthetic-long-peptide-vaccine-for-efficient-induction-of-cytotoxic-and-t-helper-responses
#6
Koen van der Maaden, Jeroen Heuts, Marcel Camps, Maria Pontier, Anton Terwisscha van Scheltinga, Wim Jiskoot, Ferry Ossendorp, Joke Bouwstra
Recent studies have shown that intradermal vaccination has great potential for T cell-mediated cancer immunotherapy. However, classical intradermal immunization with a hypodermic needle and syringe has several drawbacks. Therefore, in the present study a digitally controlled hollow microneedle injection system (DC-hMN-iSystem) with an ultra-low dead volume was developed to perform micro-injections (0.25-10μL) into skin in an automated manner. A synthetic long peptide derived from human papilloma virus formulated in cationic liposomes, which was used as a therapeutic cancer vaccine, was administered intradermally by using the DC-hMN-iSystem...
November 22, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29168128/enhancement-of-galantamine-hbr-skin-permeation-using-sonophoresis-and-limonene-containing-pegylated-liposomes
#7
Worranan Rangsimawong, Yasuko Obata, Praneet Opanasopit, Tanasait Ngawhirunpat, Kozo Takayama
This study aimed to investigate the effect of low-frequency sonophoresis (SN) and limonene-containing PEGylated liposomes (PL) on the transdermal delivery of galantamine HBr (GLT). To evaluate the skin penetration mechanism, confocal laser scanning microscopy (CLSM), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC) were employed. The application of SN led to more GLT penetration into and through the skin than GLT solution alone. The liposomes also improved GLT permeation, and 2% limonene-containing PL (PL-LI2%) exhibited the highest GLT permeation, followed by PL-LI1%, PL-LI0...
November 22, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29158713/formulation-and-characterization-of-novel-soft-nanovesicles-for-enhanced-transdermal-delivery-of-eprosartan-mesylate
#8
Abdul Ahad, Abdulmohsen A Al-Saleh, Abdullah M Al-Mohizea, Fahad I Al-Jenoobi, Mohammad Raish, Alaa Eldeen B Yassin, Mohd Aftab Alam
The objective of the present work was to formulate, optimize and evaluate the potential of novel soft nanovesicles i.e. nano-transfersomes, containing eprosartan mesylate (EM) for transdermal delivery. Nano-transfersomes of EM were developed using Phospholipon 90G, Span 80 (SP) and sodium deoxycholate (SDC) and characterized for vesicle size, shape, entrapment efficiency, in vitro skin permeation study and confocal laser scanning microscopy. The optimized nano-transfersomes formulation showed vesicles size of 108...
November 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/29154188/layer-by-layer-films-containing-emodin-or-emodin-encapsulated-in-liposomes-for-transdermal-applications
#9
Paula P Campos, Leonardo Fernandes Fraceto, Marystela Ferreira
Dermal drug release systems are an important area of research because they can be applied to the skin in a non-invasive procedure using a lower concentration of drugs. In this study, we have developed two types of Layer-by-Layer (LbL) films for releasing emodin (EM). In one system, EM was intercalated with poly(ethylenimine) PEI and poly(vinyl sufonate) (PVS) polyelectrolytes, forming (PEI/PVS)2(PEI/EM)7; in another, EM was incorporated in liposomes obtained by mixing dipalmitoyl phosphatidyl glycerol (DPPG) and palmitoyl oleoyl phosphatidyl glycerol (POPG) lipids, forming (PEI/PVS)2(PEI/DPPG-POPG-EM)7...
November 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29147099/changes-in-quality-characteristics-of-pork-patties-containing-antioxidative-fish-skin-peptide-or-fish-skin-peptide-loaded-nanoliposomes-during-refrigerated-storage
#10
Jing-Jing Bai, Jung-Gyu Lee, Sang-Yoon Lee, Soojin Kim, Mi-Jung Choi, Youngjae Cho
Marine fish skin peptides (FSP) have been widely studied due to their antioxidant and antimicrobial properties. We aimed to use a natural antioxidant, FSP, to replacing synthetic preservatives in a pork patty model, which is safer for human body. Moreover, nano-liposome technology can be applied for masking the fishy smell and improving the stability of this peptide. Therefore, in this study, the effects of FSP and FSP-loaded liposomes (FSPL) on pork patty were evaluated through the tests of thiobarbituric acid reactive substances (TBARS), color, cooking loss, texture, volatile basic nitrogen (VBN), and the pH value, during 14 d of refrigerated (4°C) storage...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/29146539/hyaluronan-decorated-liposomes-as-drug-delivery-systems-for-cutaneous-administration
#11
Silvia Franzé, Alessandro Marengo, Barbara Stella, Paola Minghetti, Silvia Arpicco, Francesco Cilurzo
The work aimed to evaluate the feasibility to design hyaluronic acid (HA) decorated flexible liposomes to enhance the skin penetration of nifedipine. Egg phosphatidylcholine (e-PC) based transfersomes (Tween 80) and transethosomes (ethanol) were prepared. HA was reacted with 1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine (HA-DPPE) and two molar ratios (0.5 and 3%) of conjugate with respect to e-PC were tested. The presence of HA significantly increased the packing order of the bilayer (as verified by differential scanning calorimetry), reducing both the encapsulation efficiency and the flexibility of the decorated liposomes in a dose-dependent manner...
November 13, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29133119/towards-topical-microrna-directed-therapy-for-epidermal-disorders
#12
REVIEW
Kehinde Ross
There remains an unmet dermatological need for innovative topical agents that achieve better longterm outcomes with fewer side effects. Modulation of the expression and activity of microRNA (miRNAs) represents an emerging translational framework for the development of such innovative therapies because changes in the expression of one miRNA can have wide-ranging effects on diverse cellular processes associated with disease. In this short review, the roles of miRNA in epidermal development, psoriasis, cutaneous squamous cell carcinoma and re-epithelisation are highlighted...
November 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29123908/a-case-of-disseminated-cryptococcosis-with-necrotizing-fasciitis-in-a-non-hiv-patient
#13
Tetsuya Hoshino, Kazuya Omura, Shinichi Kimura, Hiroyuki Takahashi, Katsuhiko Kamei, Misako Ohkusu
Case: Disseminated cryptococcosis is a well-recognized condition among HIV patients, but it also occurs in non-HIV patients. Necrotizing fasciitis caused by cryptococcus is rare. An 81-year-old man who had received steroid therapy presented with erythema and pain in his right thigh. After the rapid progression of symptoms and a failure to respond to antibiotic therapy, a clinical diagnosis of necrotizing fasciitis was made. We performed debridement, and yeasts were detected using a Gram stain of the fascia...
October 2017: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29111151/experimental-optimization-of-lornoxicam-liposomes-for-sustained-topical-delivery
#14
Joshny Joseph, Vedha Hari B N, Ramya Devi D
The purpose of the present investigation is to formulate liposomes of Lornoxicam for topical delivery using Central Composite Design, to provide a sustained release of the drug and thereby extend its elimination half-life. Liposomes were prepared by thin film hydration method with pH induced vesiculation. The liposomes were assessed for their particle size, charge, morphology and drug entrapment and characterized using TGA-DSC and FTIR analysis, to assess the interaction between the drug and excipients. The in vitro release study was performed using modified USP dissolution apparatus-I using three different dissolution media and the ex vivo release study was performed using goat skin...
October 27, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29100457/nanobubbles-as-ultrasound-contrast-agent-for-facilitating-small-cell-lung-cancer-imaging
#15
Jin-Ping Wang, Xiao-Lin Zhou, Ji-Ping Yan, Rong-Qin Zheng, Wei Wang
Background: This study is to investigate whether liposome-loaded nanobubbles (NBs) have the potentials to carry anti-pro-gastrin releasing peptide (proGRP) antibody and enhance ultrasound imaging of small cell lung cancer (SCLC). Methods: NBs were loaded with an antibody against SCLC (H446 cell line). A nude mouse model of SCLC tumor was established by a subcutaneous injection of tumor cell suspension in the dorsal skin. Images for contrast-enhanced ultrasound (CEUS) of xenograft tumors in the model were obtained through an intravenous injection of blank and targeting NBs...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29093350/in-vivo-microdialysis-for-dynamic-monitoring-of-the-effectiveness-of-nano-liposomes-as-vehicles-for-topical-psoralen-application
#16
Hongyu Zhang, Kai Zhang, Zhe Li, Jihui Zhao, Yongtai Zhang, Nianping Feng
In this study, the skin permeation of liposomes containing psoralen was investigated by in vivo skin microdialysis. Psoralen-loaded nano-sized liposomes were prepared with a mean size of 117.5 nm and a polydispersity index of 0.21, indicating the uniform dispersion of phosphatidylcholine vesicles in the liposomal solution. Based on in vivo microdialysis experiments, the drug concentration in local deep skin of rat increased rapidly and reached a peak concentration (Cmax) of 319.35±23.72 µg/mL at 180 min, and decreased slowly thereafter...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29071205/disseminated-paracoccidioidomycosis-prediagnosticated-as-neoplasm-an-important-challenge-in-diagnosis-using-rt-pcr
#17
Fabiana Rocha-Silva, Cássio Ferreira Guimarães, Edmundo Rocha de Oliveira Júnior, Sônia Maria de Figueiredo, Rachel Basques Caligiorne
This paper presents a case of disseminated paracoccidioidomycosis in a 62-year-old male patient, who lives in Belo Horizonte, MG, Brazil. The patient was hospitalized with icteric syndrome of cholestatic pattern and weight loss, with loss 30 kg in 5 months. The imaging of the abdomen showed lesion of infiltrative pattern, affecting gallbladder and intrahepatic bile ducts, suggesting neoplasia of malignant behavior, besides to presenting the yellow nail syndrome. Dermatological examination presented erythematous-infiltrated plaques in the occipital region...
March 2018: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/29061106/potential-enhancement-and-targeting-strategies-of-polymeric-and-lipid-based-nanocarriers-in-dermal-drug-delivery
#18
Emine Kahraman, Sevgi Güngör, Yıldız Özsoy
Nanocarriers used for alternative drug-delivery strategies have gained interest due to improved penetration and delivery of drugs into specific regions of the skin in recent years. Dermal drug delivery via polymeric-based nanocarriers (polymeric nanoparticles, micelles, dendrimers) and lipid-based nanocarriers (solid-lipid nanoparticles and nanostructured lipid carriers, vesicular nanocarriers including liposomes, niosomes, transfersomes and ethosomes) has been widely investigated. Although penetration of nanocarriers through the intact skin could be restricted, these carriers are particularly considered as feasible for the treatment of dermatological diseases in which the skin barrier is disrupted and also for follicular delivery of drugs for management of skin disorders such as acne...
November 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/29054682/liposomalization-of-oxaliplatin-induces-skin-accumulation-of-it-but-negligible-skin-toxicity
#19
Kentaro Nishida, Misaki Kashiwagi, Shunsuke Shiba, Kiwamu Muroki, Akihiro Ohishi, Yusuke Doi, Hidenori Ando, Tatsuhiro Ishida, Kazuki Nagasawa
Liposomalization causes alteration of the pharmacokinetics of encapsulated drugs, and allows delivery to tumor tissues through passive targeting via an enhanced permeation and retention (EPR) effect. PEGylated liposomal doxorubicin (Doxil(®), Lipo-DXR), a representative liposomal drug, is well-known to reduce cardiotoxicity and increase the anti-tumor activity of DXR, but to induce the hand-foot syndrome (HFS) as a result of skin DXR accumulation, which is one of its severe adverse effects. We have developed a new liposomal preparation of oxaliplatin (l-OHP), an important anti-tumor drug for treatment of colorectal cancer, using PEGylated liposomes (Lipo-l-OHP), and showed that Lipo-l-OHP exhibits increased anti-tumor activity in tumor-bearing mice compared to the original preparation of l-OHP...
December 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29046146/phospholipid-based-immobilized-artificial-membrane-iam-chromatography-a-powerful-tool-to-model-drug-distribution-processes
#20
Anna W Sobańska, Elżbieta Brzezińska
A review of applications of the Immobilized Artificial Membrane (IAM) chromatography in drug discovery is given. IAM chromatography is presented as a tool to predict the interactions of solutes with biomembranes, blood-brain barrier permeability, volume of distribution, oral and skin absorption of drugs and compared to other in vitro techniques used to study drug bioavailability (caco-2 cells, liposome partition). Unbound phosphatidylcholine based stationary phases are also discussed. Some new trends and ideas in the IAM chromatography are presented...
October 18, 2017: Current Pharmaceutical Design
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