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https://www.readbyqxmd.com/read/29677404/hybrid-scaffolds-of-mg-alloy-mesh-reinforced-polymer-extracellular-matrix-composite-for-critical-sized-calvarial-defect-reconstruction
#1
Yingqi Chen, Sang-Ho Ye, Hideyoshi Sato, Yang Zhu, Vesselin Shanov, Tarannum Tiasha, Antonio D'Amore, Samuel Luketich, Guojiang Wan, William R Wagner
The challenge of developing scaffolds to reconstruct critical-sized calvarial defects without the addition of high levels of exogenous growth factor remains relevant. Both osteogenic regenerative efficacy as well as suitable mechanical properties for the temporary scaffold system are of importance. In this study, a Mg alloy mesh reinforced polymer/demineralized bone matrix (DBM) hybrid scaffold was designed where the hybrid scaffold was fabricated by a concurrent electrospinning/electrospraying of poly(lactic-co-glycolic) (PLGA) polymer and DBM suspended in hyaluronic acid (HA)...
April 20, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29677369/targeted-drug-delivery-in-the-suprachoroidal-space-by-swollen-hydrogel-pushing
#2
Jae Hwan Jung, Patcharin Desit, Mark R Prausnitz
Purpose: The purpose is to target model drug particles to the posterior region of the suprachoroidal space (SCS) of the eye controlled via pushing by hydrogel swelling. Methods: A particle formulation containing 1% hyaluronic acid (HA) with fluorescent polymer particles and a hydrogel formulation containing 4% HA were introduced in a single syringe as two layers without mixing, and injected sequentially into the SCS of the rabbit eye ex vivo and in vivo using a microneedle...
April 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29676255/-perfecting-smile-esthetics-keep-it-pink
#3
Virginie Monnet-Corti, Angeline Antezack, Marion Pignoly
INTRODUCTION: Smile aesthetics is based on numerical, physical, physiological and psychological data regarding beauty, while taking into account the desires of the patient. It is determined by the shape, colour and position of the lips, teeth and gingival tissues. Periodontal examination in both the facial and labial settings supports analysis of the gingival display during natural and forced smiling, the health of the periodontium, the gingival contours, the aesthetic gingival line, and the presence of the papillae...
March 2018: L' Orthodontie Française
https://www.readbyqxmd.com/read/29675477/dextranomer-hyaluronic-acid-calcification-masquerading-as-distal-ureteral-calculi-in-a-patient-previously-treated-for-vesicoureteral-reflux
#4
Muammer Bozkurt, Samir Agalarov, Erkan Merder, Fatih Altunrende
Subureteral endoscopic injection is a safe and effective treatment for vesicoureteral reflux (VUR). Dextranomer/hyaluronic acid (Dx/HA) is the most commonly used bulking agent for the treatment of VUR. We report a confusing radiographic finding of calcified Dx/HA injection initially simulates distal ureteral stone in a female patient who has intermittent lumbar pain. Calcification of Dx/HA implants may mimic distal ureteral calculi; therefore, urologists should be aware of the potentially confusing radiographic images...
2018: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29675376/clinical-efficacy-of-combined-topical-0-05-cyclosporine-a-and-0-1-sodium-hyaluronate-in-the-dry-eyes-with-meibomian-gland-dysfunction
#5
Ho-Yun Kim, Ji-Eun Lee, Ha-Na Oh, Ju-Whan Song, Sang-Youp Han, Jong-Soo Lee
AIM: To investigate the efficacy of combined topical 0.05% cyclosporine A (CsA; Restasis® , Allergan pharmaceuticals, USA) and 0.1% sodium hyaluronate treatment in dry eyes with meibomian gland dysfunction (MGD). METHODS: In a retrospective analysis, 53 patients (106 eyes) with MGD were enrolled and performed lid warm massage for 10min daily and be instilled preservative free sodium hyaluronate 0.1% eye drops 4 times daily. Patients were divided into subjects treated with topical 0...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29672299/crispr-cas9-mediated-silencing-of-cd44-in-human-highly-metastatic-osteosarcoma-cells
#6
Tang Liu, Zuyun Yan, Yong Liu, Edwin Choy, Francis J Hornicek, Henry Mankin, Zhenfeng Duan
BACKGROUND/AIMS: Metastasis is the major cause of death in patients with osteosarcoma. There is an urgent need to identify molecular markers that promote metastasis. Cluster of differentiation 44 is a receptor for hyaluronic acid (HA) and HA-binding has been proven to participate in various biological tumor activities, including tumor progression and metastasis. METHODS: We performed a meta-analysis to investigate the relationship between CD44 expression, survival, and metastasis in patients with osteosarcoma...
April 16, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29671497/osteoarthritis-rapid-evidence-review
#7
Mark H Ebell
Osteoarthritis (OA) should be suspected in patients with pain in the fingers, shoulders, hips, knees, or ankles, especially if they are older than 40 years. Patients older than 50 years who have joint pain, minimal morning stiffness, and functional impairment likely have OA. Radiography can confirm the diagnosis and may be helpful before surgical referral, but findings generally do not correlate well with symptoms. Exercise, physical therapy, knee taping, and tai chi are beneficial for knee OA. Medical therapy provides modest benefits in pain reduction and functional improvement; however, nonsteroidal anti-inflammatory drugs, tramadol, and other opioids have significant potential harms...
April 15, 2018: American Family Physician
https://www.readbyqxmd.com/read/29670834/hybrid-scaffolds-of-hyaluronic-acid-and-collagen-loaded-with-prednisolone-an-interesting-system-for-osteoarthritis
#8
Farhad Mohammadi, Soliman Mohammadi Samani, Nader Tanideh, Fatemeh Ahmadi
Purpose: Cartilage regeneration by using polymeric scaffolds is a new option for treatment of osteoarthritis. A good scaffold for tissue engineering should copy the characteristics of natural extracellular matrix. The purpose of this study was to make a dosage form with proper reliability and stability for cartilage repair. Methods: Hybrid scaffolds containing different ratios of hyaluronic acid (HA) and collagen were prepared and loaded with prednisolone as anti-inflammatory agent. Two different dosage forms (lyophilized implantable disk and thermo-sensitive gels) were examined...
March 2018: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29670737/oral-foreign-body-granuloma-to-soft-tissue-fillers-report-of-two-cases-and-review-of-the-literature
#9
Paris Tamiolakis, Evangelia Piperi, Panagiotis Christopoulos, Alexandra Sklavounou-Andrikopoulou
The increasing demand for cosmetic procedures in the orofacial area nowadays, results in a growing number of complications attributable to soft tissue fillers, including the development of foreign body granuloma. The purpose of this study is to present two additional cases of oral foreign body granulomas caused by liquid silicone and hyaluronic acid respectively and review the pertinent literature regarding the demographics, the clinical appearance, the histopathology and the treatment of these lesions. Key words: Oral foreign body granuloma, hyaluronic acid, silicone, soft tissue filler...
February 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29668079/co-culture-of-adipose-derived-stem-cells-and-chondrocytes-on-three-dimensionally-printed-bioscaffolds-for-craniofacial-cartilage-engineering
#10
Robert J Morrison, Hassan B Nasser, Khaled N Kashlan, David A Zopf, Derek J Milner, Colleen L Flanangan, Matthew B Wheeler, Glenn E Green, Scott J Hollister
OBJECTIVES/HYPOTHESIS: Reconstruction of craniofacial cartilagenous defects are among the most challenging surgical procedures in facial plastic surgery. Bioengineered craniofacial cartilage holds immense potential to surpass current reconstructive options, but limitations to clinical translation exist. We endeavored to determine the viability of utilizing adipose-derived stem cell-chondrocyte co-culture and three-dimensional (3D) printing to produce 3D bioscaffolds for cartilage tissue engineering...
April 18, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29665439/hyaluronic-acid-conjugated-nanoparticle-delivery-of-sirna-against-twist-reduces-tumor-burden-and-enhances-sensitivity-to-cisplatin-in-ovarian-cancer
#11
Sophia A Shahin, Ruining Wang, Shirleen I Simargi, Altagracia Contreras, Liliana Parra, Louise Qu, Wei Wen, Thanh Dellinger, Juli Unternaehrer, Fuyuhiko Tamanoi, Jeffrey I Zink, Carlotta A Glackin
TWIST protein is critical to development and is activated in many cancers. TWIST regulates epithelial-mesenchymal transition, and is linked to angiogenesis, metastasis, cancer stem cell phenotype, and drug resistance. The majority of epithelial ovarian cancer (EOC) patients with metastatic disease respond well to first-line chemotherapy but most relapse with disease that is both metastatic and drug resistant, leading to a five-year survival rate under 20%. We are investigating the role of TWIST in mediating these relapses...
April 14, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29665292/double-targeting-explosible-nanofirework-for-tumor-ignition-to-guide-tumor-depth-photothermal-therapy
#12
Ming-Kang Zhang, Xiao-Gang Wang, Jing-Yi Zhu, Miao-Deng Liu, Chu-Xin Li, Jun Feng, Xian-Zheng Zhang
This study reports a double-targeting "nanofirework" for tumor-ignited imaging to guide effective tumor-depth photothermal therapy (PTT). Typically, ≈30 nm upconversion nanoparticles (UCNP) are enveloped with a hybrid corona composed of ≈4 nm CuS tethered hyaluronic acid (CuS-HA). The HA corona provides active tumor-targeted functionality together with excellent stability and improved biocompatibility. The dimension of UCNP@CuS-HA is specifically set within the optimal size window for passive tumor-targeting effect, demonstrating significant contributions to both the in vivo prolonged circulation duration and the enhanced size-dependent tumor accumulation compared with ultrasmall CuS nanoparticles...
April 17, 2018: Small
https://www.readbyqxmd.com/read/29665275/effect-of-edta-and-hyaluronic-acid-on-the-viability-and-cytokine-expression-of-periodontal-ligament-fibroblasts
#13
Monique Costa Moreira França, Tânia Mara Da Silva, Gleyce Oliveira Silva, Márcia Carneiro Valera, Carlos Henrique Ribeiro Camargo
BACKGROUND/AIMS: Dental root cell proliferation following tooth avulsion has not been well researched. Understanding the effects of dry time and dentin treatment influences on cell proliferation is essential to provide evidence-based guidelines for tooth replantation. The study evaluated the viability of periodontal ligament fibroblasts (PLF) in contact with roots, submitted to surface treatments with EDTA and hyaluronic acid (HA) at different times, including to quantify inflammatory cytokines IL-6, IL-8, IL-1β and TNF-α expressed by PLF...
April 17, 2018: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/29664106/effect-of-therapeutic-exercise-on-knee-osteoarthritis-after-intra-articular-injection-of-botulinum-toxin-type-a-hyaluronate-or-saline-a-randomized-controlled-trial
#14
Xiao Bao, Jie-Wen Tan, Michael Flyzik, Xian-Cong Ma, Howe Liu, Hui-Yu Liu
OBJECTIVE: To study the effect of therapeutic exercise on knee osteoarthritis after injection of botulinum toxin type A, hyaluronate or saline. METHODS: Sixty participants with knee osteoarthritis were randomly assigned to 3 groups: injection of saline (control) (group A), botulinum toxin type A (group B), or hyaluronate (group C). All participants received therapeutic exercise. Western Ontario and McMaster Universities Osteoarthritis Index questionnaire score, visual analogue scale pain scale, and Medical Outcomes Study 36-item Health Survey were conducted at baseline, and at the end of the 4th and 8th weeks...
April 17, 2018: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29663921/multifunctional-hyaluronic-acid-decorated-redox-responsive-magnetic-complex-micelle-for-targeted-drug-delivery-with-enhanced-antitumor-efficiency-and-anti-cell-migration-activity
#15
Mangmang Sang, Zhongtao Zhang, Fulei Liu, Lejian Hu, Lingchao Li, Li Chen, Feng Feng, Wenyuan Liu, Wei Qu
A novel multifunctional hyaluronic acid-decorated redox-responsive magnetic complex micelle (HA/CSO-SS-Hex/Fe3O4/PTX) based on a reducible hexadecanol-modified chitosan oligosaccharide polymer micelle (CSO-SS-Hex) coated with hyaluronic acid (HA) and loaded with paclitaxel (PTX) Fe3O4 nanoparticles is developed. HA is coated onto the surface of micelles via electrostatic absorption and acts as a targeting ligand for CD44 over expression in many tumor cells. A CSO-SS-Hex polymer micelle was used for PTX incorporation and GSH-triggered intracellular release...
March 1, 2018: Journal of Biomedical Nanotechnology
https://www.readbyqxmd.com/read/29662977/handheld-skin-printer-in-situ-formation-of-planar-biomaterials-and-tissues
#16
Navid Hakimi, Richard Cheng, Lian Leng, Mohammad Sotoudehfar, Phoenix Qing Ba, Nazihah Bakhtyar, Saeid Amini-Nik, Marc G Jeschke, Axel Günther
We present a handheld skin printer that enables the in situ formation of biomaterial and skin tissue sheets of different homogeneous and architected compositions. When manually positioned above a target surface, the compact instrument (weight <0.8 kg) conformally deposits a biomaterial or tissue sheet from a microfluidic cartridge. Consistent sheet formation is achieved by coordinating the flow rates at which bioink and cross-linker solution are delivered, with the speed at which a pair of rollers actively translate the cartridge along the surface...
April 17, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29661298/engineering-of-thermoresponsive-gels-as-a-fake-metastatic-niche
#17
Simona Giarra, Caterina Ierano, Marco Biondi, Maria Napolitano, Virginia Campani, Roberto Pacelli, Stefania Scala, Giuseppe De Rosa, Laura Mayol
Chemoattraction through the CXCR4-CXCL12 axis has been shown to be an important mechanism to direct circulating tumor cells toward distant sites. The objective of this work was to prepare a fake metastatic niche made up of a gel loaded with CXCL12. The gel is designed to create a steep concentration gradient of the chemokine in the proximity of the site of administration/injection, aimed to divert and capture circulating CXCR4+ tumor cells. To this aim, different thermoresponsive gels based on methylcellulose (MC) or poloxamers, loaded with CXCL12, with or without hyaluronic acid (HA) were designed and their mechanical properties correlated with the ability to attract and capture in vitro CXCR4+ cells...
July 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29659549/blackcurrant-anthocyanins-increase-the-levels-of-collagen-elastin-and-hyaluronic-acid-in-human-skin-fibroblasts-and-ovariectomized-rats
#18
Naoki Nanashima, Kayo Horie, Hayato Maeda, Toshiko Tomisawa, Maiko Kitajima, Toshiya Nakamura
Blackcurrants ( Ribes nigrum L.) contain high levels of anthocyanin polyphenols, which have beneficial effects on health, owing to their antioxidant and anticarcinogenic properties. Phytoestrogens are plant-derived substances with estrogenic activity, which could have beneficial effects on the skin. Estradiol secretion decreases during menopause, reducing extracellular matrix (ECM) component production by skin fibroblasts. Using a normal human female skin fibroblast cell line (TIG113) and ovariectomized rats, the present study investigated whether an anthocyanin-rich blackcurrant extract (BCE) and four blackcurrant anthocyanins have novel phytoestrogenic activities that could benefit the skin in menopausal women...
April 16, 2018: Nutrients
https://www.readbyqxmd.com/read/29659410/in-vivo-degradation-of-crosslinked-hyaluronic-acid-fillers-by-exogenous-hyaluronidases
#19
Garrett T Shumate, Rajesh Chopra, Derek Jones, Darin J Messina, Christopher K Hee
BACKGROUND: An advantage of hyaluronic acid (HA)-based fillers is reversibility. OBJECTIVE: To evaluate the ability of 2 hyaluronidases to degrade 3 HA-based fillers using a novel in vivo model. MATERIALS AND METHODS: Rats were injected with 3 HA fillers (HYC-24L+, VYC-20L, and RES-L) to create a projecting bolus. After 4 days, recombinant human hyaluronidase (HX) or ovine hyaluronidase (VIT) was administered at (1) varying doses (5 U, 10 U, or 30 U per 0...
April 13, 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/29658360/hyaluronic-acid-promotes-proliferation-and-migration-of-human-meniscus-cells-via-a-cd44-dependent-mechanism
#20
Tomohiko Murakami, Shuhei Otsuki, Yoshinori Okamoto, Kosuke Nakagawa, Hitoshi Wakama, Nobuhiro Okuno, Masashi Neo
PURPOSE: Treatment of meniscal injury is important for osteoarthritis (OA) prevention. Meniscus cells are divided between inner and outer cells, which have different characteristics and vascularity. We evaluated the effects of hyaluronic acid (HA) on the proliferation and migration of human inner and outer meniscus cells, and investigated the underlying healing mechanisms. MATERIALS AND METHODS: Lateral menisci from 18 patients who underwent total knee arthroplasty were used...
April 15, 2018: Connective Tissue Research
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