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https://www.readbyqxmd.com/read/28339312/biomacromolecule-lipid-hybrid-nanoparticles-for-controlled-delivery-of-sorafenib-in-targeting-hepatocellular-carcinoma-therapy
#1
Jing Zhang, Tianqi Wang, Shengjun Mu, Livesey D Olerile, Xiaoyue Yu, Na Zhang
AIM: Hybrids composed of various materials are highly versatile for drug delivery in tumor therapy including hepatocellular carcinoma. Herein, a sorafenib (SF)-loaded biomacromolecule hyaluronic acid (HA)/lipid hybrid nanoparticles (HA/SF-cLNS) were developed for targeting drug delivery. MATERIALS & METHODS: In vitro assays determined HA/SF-cLNS release behavior, enzymatic degradation, uptake and cytotoxicity. H22-bearing liver cancer xenograft murine models were used to evaluate the biodistribution and therapeutic efficacy in vivo...
March 24, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28335277/receptor-meditated-endocytosis-by-hyaluronic-acid-superparamagnetic-nanovetor-for-targeting-of-cd44-overexpressing-tumor-cells
#2
Kwang Sik Yu, Meng Meng Lin, Hyun-Ju Lee, Ki-Sik Tae, Bo-Sun Kang, Je Hun Lee, Nam Seob Lee, Young Gil Jeong, Seung-Yun Han, Do Kyung Kim
The present report proposes a more rational hyaluronic acid (HA) conjugation protocol that can be used to modify the surface of the superparamagnetic iron oxide nanoparticles (SPIONs) by covalently binding the targeting molecules (HA) with glutamic acid as a molecular linker on peripheral surface of SPIONs. The synthesis of HA-Glutamic Acid (GA)@SPIONs was included oxidization of nanoparticle's surface with H₂O₂ followed by activation of hydroxyl group and reacting glutamic acid as an intermediate molecule demonstrating transfection of lung cancer cells...
August 18, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334690/intracellular-fluorescent-light-up-bioprobes-with-different-morphology-for-image-guided-photothermal-cancer-therapy
#3
Bangbang Li, Peng Zhang, Jianwei Du, Xiao Zhao, Youxiang Wang
Multifunctional nanoprobe was drawing increased attention in tumor diagnosis and therapy. The simple and effective establishment of the theranostic nanoplatforms was still under urgent need. Meanwhile, the targeting ability and morphology of nanoprobe were essential for the effective endocytosis, which could further affect the diagnosis. In this work, two morphologies of nanoprobes were fabricated using gold nanorods (AuNRs) and gold nanospheres (AuNSs). Thiolated-hyaluronic acid labeled with nile blue (HS-HA-NB), a near-infrared (NIR) fluorescence dye, was coated on the surface of the gold nanoparticles to form stable nanoprobes (AuNR@HS-HA-NB, AuNS@HS-HA-NB)...
March 9, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28333326/new-high-dose-pulsed-hyaluronidase-protocol-for-hyaluronic-acid-filler-vascular-adverse-events
#4
Claudio DeLorenzi
The purpose of this article is to update the changes to the author's protocols used to manage acute filler related vascular events from those previously published in this journal. For lack of a better term, this new protocol has been called the High Dose Pulsed Hyaluronidase (HDPH) protocol for vascular embolic events with hyaluronic acid (HA) fillers. The initial protocol used involved many different modalities of treatment. The current protocol is exceedingly simple and involves solely the use of hyaluronidase in repeated high doses...
March 17, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28333176/efficacy-of-retrobulbar-hyaluronidase-injection-for-vision-loss-resulting-from-hyaluronic-acid-filler-embolization
#5
Guo-Zhang Zhu, Zhong-Sheng Sun, Wen-Xiong Liao, Bing Cai, Chun-Lin Chen, Hui-Hui Zheng, Li Zeng, Sheng-Kang Luo
Background: Vision loss is a rare but serious complication of facial hyaluronic acid (HA) filler injection, for which there is no proven rescue therapy. Retrobulbar hyaluronidase injection is advocated by many plastic surgeons as an emergency treatment, but has not been carefully assessed for its efficacy. Objectives: To evaluate the efficacy of retrobulbar hyaluronidase injection as a rescue treatment for vision loss caused by HA filler embolization. Methods: Patients with vision loss caused by HA filler embolization were treated with retrobulbar hyaluronidase injection...
January 20, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28332813/competitive-adsorption-of-polyelectrolytes-onto-and-into-pellicle-coated-hydroxyapatite-investigated-by-qcm-d-and-force-spectroscopy
#6
Hyun-Su Lee, Carl Myers, Lynette Zaidel, Prathima Chandra Nalam, Matthew Alexander Caporizzo, Carlo Daep, David M Eckmann, James G Masters, Russell J Composto
A current effort in preventive dentistry is to inhibit surface attachment of bacteria using antibacterial polymer coatings on the tooth surface. For the antibacterial coatings, the physisorption of anionic and cationic polymers directly onto hydroxyapatite (HA) and saliva treated HA surfaces was studied using quartz crystal microbalance, force spectroscopy and atomic force microscopy. First, single species adsorption is shown to be stronger on HA surfaces than on silicon oxide surfaces for all polymers (i.e...
March 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28330137/biotechnological-production-of-hyaluronic-acid-a-mini-review
#7
REVIEW
Jun Hui Sze, Jeremy C Brownlie, Christopher A Love
Hyaluronic acid (HA) is a polysaccharide found in the extracellular matrix of vertebrate epithelial, neural and connective tissues. Due to the high moisture retention, biocompatibility and viscoelasticity properties of this polymer, HA has become an important component of major pharmaceutical, biomedical and cosmetic products with high commercial value worldwide. Currently, large scale production of HA involves extraction from animal tissues as well as the use of bacterial expression systems in Streptococci...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329728/nanohybrid-magnetic-liposome-functionalized-with-hyaluronic-acid-for-enhanced-cellular-uptake-and-near-infrared-triggered-drug-release
#8
Van Du Nguyen, Shaohui Zheng, Jiwon Han, Viet Ha Le, Jong-Oh Park, Sukho Park
The aim of this work is to prepare and evaluate a novel lipid-polymer hybrid liposomal nanoplatform (hyaluronic acid-magnetic nanoparticle-liposomes, HA-MNP-LPs) as a vehicle for targeted delivery and triggered release of an anticancer drug (docetaxel, DTX) in human breast cancer cells. We first synthesize an amphiphilic hyaluronic acid hexadecylamine polymer (HA-C16) to enhance the targeting ability of the hybrid liposome. Next, HA-MNP-LPs are constructed to achieve an average size of 189.93±2.74nm in diameter...
March 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28328935/intra-articular-hyaluronic-acid-in-the-management-of-knee-osteoarthritis-pharmaco-economic-study-from-the-perspective-of-the-national-health-insurance-system
#9
Thierry Thomas, Françoise Amouroux, Patrice Vincent
INTRODUCTION: Pharmaco-economic data on the management of knee osteoarthritis (OA) with intra articular hyaluronic acid (IA HA) viscosupplementation is limited. We contrasted IA HA with non-steroidal anti-inflammatory drugs (NSAIDs). METHODS: Observational, prospective and multicenter study comparing treatments of knee OA costs and efficacy with either NSAIDs alone, or hyaluronic acid (Arthrum H 2%®), during a 6-month follow-up period. The investigators were pharmacists who recorded data on disease, drug consumption and healthcare circuit...
2017: PloS One
https://www.readbyqxmd.com/read/28328707/the-sterility-of-partially-used-hyaluronic-acid-fillers-after-long-storage
#10
Mohammed Al-Haddab, Amr Abduljabbar, Ali Al-Somaily
BACKGROUND: Hyaluronic acid (HA) gel fillers represent most soft tissue augmentation procedures currently used, because they have lower rates of complications compared with other materials. Many patients do not consume an entire syringe of filler but may require a retouch or intermittent augmentation after some time. The remaining material is commonly stored in a specific environment for reuse by the same patient. OBJECTIVE: There are an insufficient number of recommendations concerning the safety of storing and reusing dermal fillers in the literature because of the paucity of studies...
March 21, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28326422/late-hemorrhagic-pseudoseptic-arthritis-encountered-during-total-knee-arthroplasty-due-to-hyaluronic-acid-viscosupplementation
#11
Jeremy M Korsh, William Paul Bassett, Donald R Polakoff
Osteoarthritis (OA) is the most common form of arthritis and affects approximately one-third of people in the United Sates aged 65 years and older. Since 2013, the American Academy of Orthopaedic Surgeons has not been able to recommended using hyaluronic acid for patients with symptomatic OA of the knee. Subsequent publications have also cautioned against the use of viscosupplementation based on lack of efficacy and the potential for harm. We present a case of late hemorrhagic pseudoseptic arthritis encountered during TKA due to hyaluronic acid viscosupplementation...
December 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28326306/cd44-a-multifunctional-cell-surface-adhesion-receptor-is-a-regulator-of-progression-and-metastasis-of-cancer-cells
#12
REVIEW
Linda T Senbanjo, Meenakshi A Chellaiah
CD44 is a cell surface adhesion receptor that is highly expressed in many cancers and regulates metastasis via recruitment of CD44 to the cell surface. Its interaction with appropriate extracellular matrix ligands promotes the migration and invasion processes involved in metastases. It was originally identified as a receptor for hyaluronan or hyaluronic acid and later to several other ligands including, osteopontin (OPN), collagens, and matrix metalloproteinases. CD44 has also been identified as a marker for stem cells of several types...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28326213/a-fatal-sepsis-caused-by-hyaluronate-knee-injection-how-much-the-medical-history-and-the-informed-consent-might-be-important
#13
F Manfreda, G Rinonapoli, A Nardi, P Antinolfi, A Caraffa
The incidence of Osteoarthritis (OA) is gradually increasing worldwide due to two main reasons: longer life expectation and increased functional demand. Several treatment options have been proposed for this disease. Conservative treatment has the goal to improve the quality of life, reduce pain, and prevent the progression of the disease. Hyaluronate viscosupplementation is one of the most used infiltrative treatments for OA, but, despite its common use, clinical efficacy is still under question. Though adverse reactions for this medical option are actually rare, septic arthritis is a very scaring complication...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28325757/loss-of-cd73-prevents-accumulation-of-alternatively-activated-macrophages-and-the-formation-of-prefibrotic-macrophage-clusters-in-irradiated-lungs
#14
Simone de Leve, Florian Wirsdörfer, Federica Cappuccini, Alexandra Schütze, Alina V Meyer, Katharina Röck, Linda F Thompson, Jens W Fischer, Martin Stuschke, Verena Jendrossek
While radiotherapy is a mainstay for cancer therapy, pneumonitis and fibrosis constitute dose-limiting side effects of thorax and whole body irradiation. So far, the contribution of immune cells to disease progression is largely unknown. Here we studied the role of ecto-5'-nucelotidase (CD73)/adenosine-induced changes in the myeloid compartment in radiation-induced lung fibrosis. C57BL/6 wild-type or CD73(-/-) mice received a single dose of whole thorax irradiation (WTI, 15 Gy). Myeloid cells were characterized in flow cytometric, histologic, and immunohistochemical analyses as well as RNA analyses...
March 21, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28325683/biomimetic-scaffolds-with-three-dimensional-undulated-microtopographies
#15
Jonelle Z Yu, Emrullah Korkmaz, Monica I Berg, Philip R LeDuc, O Burak Ozdoganlar
Many human and animal tissues naturally possess three-dimensional (3D) micro-scale geometries enabling certain physiological functions. Absence of these microgeometries in engineered tissues may undermine the effectiveness of corresponding tissue repair and regeneration. This paper introduces a novel approach to create tissue scaffolds with biomimetic 3D undulated microtopographies. The mechanical micromilling technology is used for precise and reproducible fabrication of poly(methyl methacrylate) (PMMA) master molds with 3D undulated microtopographies...
February 14, 2017: Biomaterials
https://www.readbyqxmd.com/read/28325340/low-molecular-weight-xanthan-gum-for-treating-osteoarthritis
#16
Guanying Han, Qixin Chen, Fei Liu, Zan Cui, Huarong Shao, Fuyan Liu, Aibin Ma, Joshua Liao, Bin Guo, Yuewei Guo, Fengshan Wang, Peixue Ling, Xifan Mei
Osteoarthritis (OA) is one of the most common chronic diseases and characterized by degradation of articular cartilage. We have previously reported xanthan gum (XG) injection preparation with high molecular weights (Mw) in ranging from 3×10(6)Da to 5×10(6)Da (HM-XG) could enhance the viscosity of synovial fluid, protect joint cartilage in rabbit, and the therapeutical effect has no significance difference with an existing clinical medication (sodium hyaluronate, SH) at the same injection frequency (once weekly for 5 weeks)...
May 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28325330/hollow-hyaluronic-acid-particles-by-competition-between-adhesive-and-cohesive-properties-of-catechol-for-anticancer-drug-carrier
#17
Jeongwook Lee, Ki Chun Yoo, Jaehyoung Ko, Bowon Yoo, Joohuei Shin, Su-Jae Lee, Daewon Sohn
The marine mussel-inspired properties of catechol, adhesiveness and cohesiveness, have been applied with pH control to fabricate hollow particles using a silica core and catechol-modified hyaluronic acid (HA-CA) shell for an anticancer drug carrier. The competition between adhesive and cohesive properties of catechol with different pH values leads to various structures, a rough catechol modified HA (HA-CA) shell at pH 5.5, monodisperse spherical silica@HA-CA particles at pH 7.4, and an amorphous HA-CA layer at pH 8...
May 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28323101/mixtures-of-hyaluronic-acid-and-liposomes-for-drug-delivery-phase-behavior-microstructure-and-mobility-of-liposomes
#18
Naila El Kechai, Sandrine Geiger, Arianna Fallacara, Ingrid Cañero Infante, Valérie Nicolas, Evelyne Ferrary, Nicolas Huang, Amélie Bochot, Florence Agnely
Hyaluronic acid liposomal gels have previously demonstrated in vivo their great potential for drug delivery. Elucidating their phase behavior and structure would provide a better understanding of their use properties. This work evaluates the microstructure and the phase behavior of mixtures of hyaluronic acid (HA) and liposomes and their impact on the vesicle mobility. HA concentration and surface properties of liposomes (positively or negatively charged, neutral, with a polyethylene glycol corona) are varied while the liposome concentration remains constant...
March 18, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28322954/characterization-of-high-yield-exopolysaccharide-produced-by-phyllobacterium-sp-921f-exhibiting-moisture-preserving-properties
#19
Yinping Li, Gaoli Zhang, Chunying Du, Haijin Mou, Jiefen Cui, Huashi Guan, Hueymin Hwang, Peng Wang
A new strain bacteria was isolated and named as Phyllobacterium sp. 921F, due to its high production capacity of exopolysaccharide (EPS). Characterization of physico-chemical properties of the EPS and optimization for high production were conducted to aim at industrial applications. The optimum pH and temperature were 7.0 and 30°C, respectively. The following scale-up fermentation was carried out in 30L bioreactor and amounts of EPS (21.9g/L) were produced. The EPS with a molecular mass of 1082kDa was composed of glucose, galactose, and pyruvate...
March 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28322719/prp-in-oa-knee-update-current-confusions-and-future-options
#20
Mandeep S Dhillon, Sandeep Patel, Rakesh John
Positive results have been uniformly observed by various researchers for platelet-rich plasma (PRP) in early osteoarthritis (OA) knee in the past few years. PRP has clearly demonstrated its supremacy in comparison to hyaluronic acid (HA) and placebo in various clinical trials and is undoubtedly the best option available for symptomatic treatment in early OA. The release of growth factors from PRP occurs immediately and lasts for around three weeks and the clinical effect tends to wane down by the end of the year...
2017: SICOT-J
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