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sodium hyaluronate

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https://www.readbyqxmd.com/read/28038751/polyethyleneimine-modified-poly-hyaluronic-acid-particles-with-controllable-antimicrobial-and-anticancer-effects
#1
Nurettin Sahiner, Selin Sagbas, Mehtap Sahiner, Ramesh S Ayyala
Poly(hyaluronic acid) (p(HA)) particles with sizes from few hundred nm to few tens of micrometer were synthesized by using epoxy groups containing crosslinker glycerol diglycidyl ether (GDE) with high yield, 94±5%. P(HA) particles were oxidized by treatment with sodium periodate and then reacted with cationic polyethyleneimine (PEI) at 1:0.5, 1:1, and 1:2 wt ratio of p(HA):PEI to obtain p(HA)-PEI particles. From zeta potential measurements, isoelectronic points of bare p(HA) particles increased to pH 8.7 from 2...
March 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28012591/facile-preparation-of-polysaccharide-functionalized-macroporous-adsorption-resin-for-highly-selective-enrichment-of-glycopeptides
#2
Xudong Sun, Jing Dong, Jinan Li, Mingliang Ye, Weibing Zhang, Junjie Ou
A facile approach for preparation of hydrophilic polysaccharide-functionalized macroporous adsorption resin (MAR) was presented. Polydisperse MAR with approximately 250μm in diameter was synthesized via suspension polymerization and then modified with polysaccharides, sodium hyaluronate (HA) and chitosan (CS), through layer-by-layer (LbL) self-assembly process. The preparation method was facile, low cost and easy to expand production from tens of grams to one kilogram. The resulting MAR@(HA/CS)20 possesses highly hydrophilic property and rapid adsorption behavior...
December 16, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28012304/work-of-separation-a-method-to-assess-intraperitoneal-adhesion-and-healing-of-parietal-peritoneum-in-an-animal-model
#3
Long-Xiang Lin, Fang Yuan, Hui-Hui Zhang, Yu-Long Sun
BACKGROUND: Adhesion grades and adhesion breaking strength are widely used to assess severity of intraperitoneal adhesion in animal models. However, the results of adhesion grades have the large deviations due to vary personal experience. Adhesion breaking strength ignores the details of adhesion. This study introduced work of separation, the energy consumption during breakage of adhesion, to better evaluate intraperitoneal adhesion. METHODS: The intraperitoneal adhesion was induced by traumas created at rat cecum and adjacent abdominal wall...
December 16, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27987834/injectable-hydrogels-prepared-from-partially-oxidized-hyaluronate-and-glycol-chitosan-for-chondrocyte-encapsulation
#4
Do Yoon Kim, Honghyun Park, Sang Woo Kim, Jae Won Lee, Kuen Yong Lee
Hyaluronate has attracted great attention in tissue engineering as a scaffolding material. However, hyaluronate typically requires chemical cross-linking molecules to form hydrogels, which may induce undesirable side effects in the body. In this study, hyaluronate was partially oxidized with sodium periodate to generate aldehyde groups in the backbone, and simply mixed with glycol chitosan to form gels via Schiff base formation. The effects of the degree of oxidization, polymer concentration, and polymer composition on the mechanical properties of oxidized hyaluronate/glycol chitosan hydrogels were investigated in vitro...
February 10, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27973684/the-impact-of-arthrocentesis-with-and-without-hyaluronic-acid-injection-in-the-prognosis-and-synovial-fluid-myeloperoxidase-levels-of-patients-with-painful-symptomatic-internal-derangement-of-temporomandibular-joint-a-randomized-controlled-clinical-trial
#5
Serap Moroğlu Ozdamar, Burcin Alev, Aysen Yarat
BACKGROUND: We aimed to assess the relationship between myeloperoxidase (MPO) and internal derangement (ID) of temporomandibular joint (TMJ) and effects of arthrocentesis procedure, either alone or in combination with hyaluronic acid (HA) injection on the prognosis of ID of TMJ. METHODS: A prospective randomized controlled trial has been conducted through patients, who underwent arthrocentesis for the treatment of ID of TMJ, were randomly divided into two groups...
December 14, 2016: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/27955699/adelmidrol-in-combination-with-hyaluronic-acid-displays-increased-anti-inflammatory-and-analgesic-effects-against-monosodium-iodoacetate-induced-osteoarthritis-in-rats
#6
Rosanna Di Paola, Roberta Fusco, Daniela Impellizzeri, Marika Cordaro, Domenico Britti, Valeria Maria Morittu, Maurizio Evangelista, Salvatore Cuzzocrea
BACKGROUND: Osteoarthritis (OA) is a degenerative joint disease produced by a cascade of events that can ultimately lead to joint damage. The aim of this study was to evaluate the effect of adelmidrol, a synthetic palmitoylethanolamide analogue, combined with hyaluronic acid on pain severity and modulation of the inflammatory response in a rat model of monosodium iodoacetate (MIA)-induced osteoarthritis. METHODS: OA was induced by intra-articular injection of MIA in the knee joint...
December 12, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27930553/the-effects-of-hyaluronic-acid-on-hemiplegic-shoulder-injury-and-pain-in-patients-with-subacute-stroke-a-randomized-controlled-pilot-study
#7
Yu-Chi Huang, Chau-Peng Leong, Lin Wang, Mei-Ju Chen, Chien-Yi Chuang, Mei-Yun Liaw, Lin-Yi Wang
BACKGROUND: Hemiplegic shoulder pain (HSP) is one of the most common comorbidities in stroke patients with flaccid shoulders. The pain limits functional motor recovery and affects the activities of daily living after acute stroke. This study investigated the effects of hyaluronic acid (HA) injection on pain reduction and motor function in subacute stroke patients with HSP and injury. METHODS: A randomized, double-blinded controlled trial was conducted in a medical center...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27929721/a-randomized-multicenter-study-comparing-0-1-0-15-and-0-3-sodium-hyaluronate-with-0-05-cyclosporine-in-the-treatment-of-dry-eye
#8
Yuli Park, Jong Suk Song, Chul Young Choi, Kyung Chul Yoon, Hyung Keun Lee, Hyun Seung Kim
PURPOSE: To investigate the efficacy of 0.1%, 0.15%, and 0.3% sodium hyaluronate (SH) artificial tears compared with 0.05% cyclosporine (CS) ophthalmic solution for the treatment of dry eye. METHODS: One hundred seventy-six patients were recruited and randomized to receive of 0.1%, 0.15%, and 0.3% SH and 0.05% CS. There was a primary end point which is the changes in the fluorescein corneal staining (FCS) score to determine noninferiority of 0.1%, 0.15%, and 0.3% SH...
December 8, 2016: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27923698/engineered-sodium-hyaluronate-respirable-dry-powders-for-pulmonary-drug-delivery
#9
Francesco Martinelli, Anna Giulia Balducci, Abhinav Kumar, Fabio Sonvico, Ben Forbes, Ruggero Bettini, Francesca Buttini
Sodium hyaluronate (HYA) warrants attention as a material for inhalation due to its (i) therapeutic potential, (ii) utility as a formulation excipient or drug carrier, and (iii) ability to target lung inflammation and cancer. This study aimed to overcome formulation and manufacturing impediments to engineer biocompatible spray-dried HYA powders for inhalation. Novel methodology was developed to produce HYA microparticles by spray drying. Different types of surfactant were included in the formulation to improve powder respirability, which was evaluated in vitro using cascade impactors...
December 5, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27909627/recurrence-of-childhood-nephrogenic-adenoma-in-urinary-bladder-developed-four-years-after-previous-surgery-despite-intravesical-sodium-hyaluronate-therapy
#10
Burak Özçift, Ayper Kaçar, Hüseyin Tuğrul Tiryaki
Nephrogenic adenoma (NA) is a rarely seen benign metaplastic lesion of the urinary tract. Its etiology is uncertain, but induced by chronic inflammation, irritation, and trauma. NA is located in the urinary tract, most commonly in the bladder. NA usually presents with hematuria and lower urinary tract symptoms. In the literature it is mostly seen in adults but about 30 cases of NA's have been reported in children. Treatment of intravesical lesions consists of transurethral resection (TUR) and fulguration and rarely partial or total cystectomy may be required in ineffective TUR...
December 2016: Turkish Journal of Urology
https://www.readbyqxmd.com/read/27854436/the-influence-of-hyaluronan-addition-on-thickness-weight-uniformity-of-mass-and-water-content-of-mucoadhesive-films
#11
Veronika Walicová, Jan Gajdziok, Markéta Gajdošová, David Vetchý
Characteristics of the buccal mucoadhesive films (film thickness, film weight, uniformity of mass and moisture content) prepared by solvent casting method were tested in this experimental study. The formulations consisted either of one mucoadhesive polymer (sodium hyaluronate of two different molecular weights and sodium carboxymethylcellulose) or combinations thereof. On the basis of the aforementioned tests, it was determined that water content was influenced by the molecular weight of sodium hyaluronate as well as by the ratio of mucoadhesive polymers in the composition...
2016: Ceská a Slovenská Farmacie
https://www.readbyqxmd.com/read/27822014/hyaluronic-acid-and-oxidized-regenerated-cellulose-prevent-adhesion-reformation-after-adhesiolysis-in-rat-models
#12
Yan Zhang, Qin Liu, Ning Yang, Xuegang Zhang
Postsurgical adhesion formation is the most common complication in abdominal and pelvic surgery. Adhesiolysis is the most commonly applied treatment for adhesion formation but is often followed by adhesion reformation. Therefore, an efficient strategy should be adopted to solve these problems. This study aimed to explore whether hyaluronic acid and oxidized regenerated cellulose (ORC) could prevent adhesion formation and reformation. Thirty female Sprague Dawley rats were randomly divided into three groups (n=10 each) and subjected to different treatments during the first and second surgery...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27793685/transcutaneous-immunization-via-rapidly-dissolvable-microneedles-protects-against-hand-foot-and-mouth-disease-caused-by-enterovirus-71
#13
Zhuangzhi Zhu, Xiaohua Ye, Zhiqiang Ku, Qingwei Liu, Chaoyun Shen, Huafei Luo, Hansen Luan, Chenghao Zhang, Shaoqiong Tian, CheeYen Lim, Zhong Huang, Hao Wang
Recent large outbreaks of hand-foot-and-mouth disease (HFMD) have seriously affected the health of young children. Enterovirus 71 (EV71) is the main causative agent of HFMD. Herein, for the first time, rapidly dissolvable microneedles (MNs) loaded with EV71 virus-like particles (VLPs) were evaluated whether they could induce robust immune responses that confer protection against EV71 infection. The characteristics of prepared MNs including hygroscopy, mechanical strength, insertion capacity, dissolution profile, skin irritation and storage stability were comprehensively assessed...
December 10, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27771488/preformulation-of-cysteamine-gels-for-treatment-of-the-ophthalmic-complications-in-cystinosis
#14
Barbara McKenzie, Graeme Kay, Kerr H Matthews, Rachel Knott, Donald Cairns
Nephropathic cystinosis is a rare autosomal recessive disease characterised by raised lysosomal levels of cystine in the cells of all organs. It is treated by regular administration of the aminothiol, cysteamine. Corneal crystal deposition is one of the most troublesome complications affecting patients and requires the hourly administration of cysteamine eye drops. In an attempt to reduce this frequency and improve the treatment, the preformulation and evaluation of cysteamine containing gels is reported. Suitability for ophthalmic delivery was determined by analysis of rheology, bioadhesion, dissolution and stability...
December 30, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27769383/rapid-detection-of-bacterial-endotoxins-in-ophthalmic-viscosurgical-device-materials-by-direct-analysis-in-real-time-mass-spectrometry
#15
Hongli Li, Victoria M Hitchins, Samanthi Wickramasekara
Bacterial endotoxins are lipopolysaccharides bound to the bacterial cell wall and released when bacteria rupture or disintegrate. Possible contamination of endotoxin in ophthalmic devices can cause a painful eye inflammation or result in toxic anterior segment syndrome after cataract surgery. Measurement of bacterial endotoxin in medical device materials is difficult since endotoxin binds with polymer matrix and some of the materials are very viscous and non-water soluble, where traditional enzyme-based Limulus amebocyte lysate (LAL) assay cannot be applied...
November 2, 2016: Analytica Chimica Acta
https://www.readbyqxmd.com/read/27753246/prospective-randomized-controlled-study-on-the-validity-and-safety-of-an-absorbable-adhesion-barrier-interceed%C3%A2-made-of-oxidized-regenerated-cellulose-for-laparoscopic-colorectal-surgery
#16
Masanori Naito, Naoto Ogura, Takahiro Yamanashi, Takeo Sato, Takatoshi Nakamura, Hirohisa Miura, Atsuko Tsutsui, Yasutoshi Sakamoto, Rieko Tanaka, Yuji Kumagai, Masahiko Watanabe
INTRODUCTION: Clinical use of an adhesion barrier made of oxidized, regenerated cellulose, Interceed®, has been reported in the field of obstetrics and gynecology to help prevent adhesions between the peritoneum and the bowel in various types of operations. In gastrointestinal surgery, sodium hyaluronate/carboxymethylcellulose has been reported as an absorbable membrane to reduce postoperative adhesions. The present study was a prospective randomized controlled study to investigate the safety and usefulness of Interceed in laparoscopic colorectal surgery...
February 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/27714459/sodium-hyaluronate-an-effective-adjunct-in-temporomandibular-joint-arthrocentesis
#17
Poornima Patel, Faisal Idrees, Vilas Newaskar, Deepak Agrawal
BACKGROUND: Internal derangement of the temporomandibular joint (TMJ) is one of the most common forms of temporomandibular disorders. The minimally invasive treatments such as arthrocentesis as well as arthroscopic lysis and lavage are often used as a first-line surgical treatment or in conjunction with nonsurgical modalities with low morbidity and high efficacy. Sodium hyaluronate (SH) has been proposed as an alternative therapeutic agent with similar therapeutic effects. OBJECTIVE: A prospective study was carried out for evaluation of efficacy of TMJ arthrocentesis with and without injection of SH in management of internal derangements...
December 2016: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27695944/endoscopic-and-clinical-benefits-of-hyaluronic-acid-in-children-with-chronic-adenoiditis-and-middle-ear-disease
#18
S Torretta, P Marchisio, V Rinaldi, D Carioli, E Nazzari, L Pignataro
Hyaluronic acid (HA) is involved in modulating inflammatory airway processes and mucociliary clearance. Some studies have tested the effectiveness of the topical administration of HA in patients with upper airway diseases with positive preliminary results. A prospective, single-blind, 1:1 randomised controlled study was performed to assess the efficacy and safety of the daily topical administration of 9 mg of sodium hyaluronate in 3 mL of a 0.9 % sodium saline solution on the basis of endoscopic and clinical parameters in children with chronic adenoiditis associated with recurrent acute otitis media and otitis media with effusion; age- and gender-matched children receiving normal 0...
October 1, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27688841/safety-of-repeated-injections-of-sodium-hyaluronate-supartz-for-knee-osteoarthritis-a-systematic-review-and-meta-analysis
#19
Raveendhara R Bannuru, Christopher R Brodie, Matthew C Sullivan, Timothy E McAlindon
OBJECTIVE: Though there is no consensus on its efficacy, knee osteoarthritis is symptomatically managed with intra-articular hyaluronic acid (IAHA). Recent reports suggest that IAHA may delay the need for total knee replacement, with the magnitude of delay proportional to the number of injection series. However, the safety of repeated injection series is reported to vary between commercial products. This report describes a systematic review of safety data on repeated treatment courses of SUPARTZ...
October 2016: Cartilage
https://www.readbyqxmd.com/read/27688751/novel-bioceramic-urethral-bulking-agents-elicit-improved-host-tissue-responses-in-a-rat-model
#20
Travis K Mann-Gow, Benjamin J King, Ahmed El-Ghannam, Christine Knabe-Ducheyne, Masatoshi Kida, Ole M Dall, Jan Krhut, Peter Zvara
Objectives. To test the physical properties and host response to the bioceramic particles, silica-calcium phosphate (SCPC10) and Cristobalite, in a rat animal model and compare their biocompatibility to the current clinically utilized urethral bulking materials. Material and Methods. The novel bulking materials, SCPC10 and Cristobalite, were suspended in hyaluronic acid sodium salt and injected into the mid urethra of a rat. Additional animals were injected with bulking materials currently in clinical use. Physiological response was assessed using voiding trials, and host tissue response was evaluated using hard tissue histology and immunohistochemical analysis...
2016: Advances in Urology
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