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https://www.readbyqxmd.com/read/29469371/-therapeutic-effect-of-bilt-combined-with-praziquantel-in-treatment-of-chronic-schistosomiasis
#1
Lai Ru-Yi, Zheng Na, Peng Ni-Na, Li Li-le, He Yu, Mei Yan, Wang Hong-Bo
OBJECTIVE: To investigate the clinical therapeutic effect of biological information infrared liver therapeutic apparatus (BILT) combined with praziquantel in the treatment of patients with chronic schistosomiasis. METHODS: A case-control study was conducted. A total of 142 chronic schistosomiasis patients were divided into an experimental group (BILT combined with praziquantel) with 64 cases and a control group (routine treatment with praziquantel alone) with 78 cases on the basis of the age, gender, disease duration and liver function as paired condition...
May 17, 2017: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
https://www.readbyqxmd.com/read/29469163/a-method-for-characterising-human-intervertebral-disc-glycosaminoglycan-disaccharides-using-liquid-chromatography-mass-spectrometry-with-multiple-reaction-monitoring
#2
X Liu, D Krishnamoorthy, L Lin, P Xue, F Zhang, L Chi, R J Linhardt, J C Iatridis
Intervertebral disc (IVD) degeneration results in the depletion of proteoglycans and glycosaminoglycans (GAGs), which can lead to structural and mechanical loss of IVD function, ingrowth of nociceptive nerve fibres and eventually discogenic pain. Specific GAG types as well as their disaccharide patterns can be predictive of disease and degeneration in several tissues but have not been comprehensively studied within the IVD. A highly sensitive mass spectrometry based technique with multiple reaction monitoring (MRM) was used to provide characterisation of chondroitin sulphate (CS), hyaluronic acid (HA), heparan sulphate (HS) and their disaccharide sulphation patterns across different anatomical regions of human IVDs...
February 22, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29468800/the-influence-of-matrix-stiffness-on-the-behavior-of-brain-metastatic-breast-cancer-cells-in-a-biomimetic-hyaluronic-acid-hydrogel-platform
#3
Akshay A Narkhede, James H Crenshaw, Riley M Manning, Shreyas S Rao
Breast cancer brain metastasis marks the most advanced stage of breast cancer no longer considered curable with a median survival period of ∼ 4-16 months. Apart from the genetic susceptibility (subtype) of breast tumors, brain metastasis is also dictated by the biophysical/chemical interactions of tumor cells with native brain microenvironment, which remain obscure, primarily due to the lack of tunable biomimetic in vitro models. To address this need, we utilized a biomimetic hyaluronic acid (HA) hydrogel platform to elucidate the impact of matrix stiffness on the behavior of MDA-MB-231Br cells, a brain metastasizing variant of the triple negative breast cancer line MDA-MB-231...
February 22, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29466856/enhanced-cellular-ablation-by-attenuating-hypoxia-status-and-reprogramming-tumor-associated-macrophages-via-nir-light-responsive-upconversion-nanocrystals
#4
Bengang Xing, Xiangzhao Ai, Ming Hu, Zhimin Wang, Linna Lyu, Wenmin Zhang, Jun Lin, Juan Li, Huang-Hao Yang
Near-infrared (NIR) light-mediated photodynamic therapy (PDT) especially based on lanthanide-doped upconversion nanocrystals (UCNs), have been extensively investigated as a promising strategy for effective cellular ablation owing to their unique optical properties to convert NIR light excitation into multiple short-wavelength emissions. Despite the deep tissue penetration of NIR light in living systems, the therapeutic efficiency is greatly restricted by insufficient oxygen supply in hypoxic tumor microenvironment...
February 21, 2018: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29464283/-osteoarthritis-of-the-shoulder-pathogenesis-diagnostics-and-conservative-treatment-options
#5
REVIEW
J Mehl, A B Imhoff, K Beitzel
PATHOGENESIS: Osteoarthritis of the shoulder is characterized by a progressive degenerative process, which is based on chronic inflammation with intra-articular release of different cytokines and proteolytic enzymes. The main predisposing factors are a history of trauma or surgery, as well as chronic overuse or instability of the glenohumeral joint. Affected patients especially suffer from impaired joint function and pain, which are often associated with cognitive and psychosocial restrictions...
February 20, 2018: Der Orthopäde
https://www.readbyqxmd.com/read/29464105/osteochondral-defects-of-the-talus-with-a-focus-on-platelet-rich-plasma-as-a-potential-treatment-option-a-review
#6
REVIEW
Ahmed Aly Elghawy, Carlos Sesin, Michael Rosselli
Objective: To provide a review of osteochondral lesions of the talus, to discuss the evidence of the risks and benefits of platelet-rich plasma (PRP) as a viable treatment option, and to measure the efficacy of PRP using MRI evidence of cartilage regeneration, as well as scales that measure improvement in 'pain' and 'functionality'. Eligibility criteria: Studies that use PRP in either conservative or intraoperative settings to treat osteochondral defects of the talus...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29463371/enhanced-in-vitro-and-in-vivo-anticancer-properties-by-using-a-nanocarrier-for-co-delivery-of-antitumor-polypeptide-and-curcumin
#7
Mengjiao Qi, Shaohua Zou, Chunjing Guo, Kaili Wang, Yueming Yu, Feng Zhao, Huaying Fan, Zimei Wu, Wanhui Liu, Daquan Chen
In this paper, a novel pH and redox dual-sensitive nanocarrier loaded with curcumin (Cur) and anticancer polypeptide (AP) was developed for dual targeting mitochondrial and CD44 receptor. The amphiphilic block copolymer was prepared by triphenylphosphonium (TPP)/oligomeric hyaluronic acid (oHA)/disulfide-menthone 1,2-glycerol ketal (SM), hereinafter referred to as TPP-oHSM. The TPP targeted the mitochondria, pH/redox dual-sensitive SM served as a hydrophobic part, and the CD44 receptor targeting oHA worked as a hydrophilic part...
January 1, 2018: Journal of Biomedical Nanotechnology
https://www.readbyqxmd.com/read/29463314/functional-brain-specific-microvessels-from-ipsc-derived-human-brain-microvascular-endothelial-cells-the-role-of-matrix-composition-on-monolayer-formation
#8
Moriah E Katt, Raleigh M Linville, Lakyn N Mayo, Zinnia S Xu, Peter C Searson
BACKGROUND: Transwell-based models of the blood-brain barrier (BBB) incorporating monolayers of human brain microvascular endothelial cells (dhBMECs) derived from induced pluripotent stem cells show many of the key features of the BBB, including expression of transporters and efflux pumps, expression of tight junction proteins, and physiological values of transendothelial electrical resistance. The fabrication of 3D BBB models using dhBMECs has so far been unsuccessful due to the poor adhesion and survival of these cells on matrix materials commonly used in tissue engineering...
February 20, 2018: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/29463054/a-turn-on-fluorescence-sensor-for-heparin-detection-based-on-a-release-of-taiwan-cobra-cardiotoxin-from-a-dna-aptamer-or-adenosine-based-molecular-beacon
#9
Yi-Jun Shi, Liang-Jun Wang, Yuan-Chin Lee, Chia-Hui Huang, Wan-Ping Hu, Long-Sen Chang
This study presents two sensitive fluorescent assays for sensing heparin on the basis of the electrostatic interaction between heparin and Naja naja atra cardiotoxin 3 (CTX3). Owing to CTX3-induced folded structure of an adenosine-based molecular beacon (MB) or a DNA aptamer against CTX3, a reduction in the fluorescent signal of the aptamer or MB 5'-end labeled with carboxyfluorescein (FAM) and 3'-end labeled with 4-([4-(dimethylamino)phenyl]azo)-benzoic acid (DABCYL) was observed upon the addition of CTX3...
February 19, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29462706/biomaterials-cues-to-direct-a-pro-regenerative-phenotype-in-macrophages-and-schwann-cells
#10
Melissa R Wrobel, Harini G Sundararaghavan
Following peripheral nerve injury (PNI), inflammatory cues impede repair. We have previously demonstrated that spinal cord matrix (SCM) proteins and hyaluronic acid (HA) nanofibers mitigate chondroitin sulfate proteoglycan (CSPG) inhibition and promote growth in peripheral neurons. In this study, we evaluated the effects of a characteristic CSPG, Chondroitin sulfate A (CSA), SCM, and HA fibers on macrophages and Schwann Cells (SCs). We hypothesized that our cues would accelerate the macrophages return to rest following classical activation (M1/pro-inflammatory) with lipopolysaccharide (LPS; 1μg/mL) and would accelerate the transformation of SCs from an immature state following injury to a mature/pro-myelinating phenotype...
February 17, 2018: Neuroscience
https://www.readbyqxmd.com/read/29460952/effects-of-hyaluronate-carboxymethylcellulose-membranes-on-the-clinical-outcome-of-horses-undergoing-emergency-exploratory-celiotomy
#11
Jarrod R Troy, Susan J Holcombe, Callie A Fogle, Kira L Epstein, J Brett Woodie
OBJECTIVE: To determine the influence of hyaluronate-carboxymethylcellulose (HA-CMC) membranes applied to intestinal anastomoses or enterotomies on postoperative complications after emergency exploratory celiotomy. STUDY DESIGN: Multicenter retrospective case-controlled series. ANIMALS: Adult horses (59 in the HA-CMC group and 91 controls). METHODS: Medical records from 4 referral hospitals were searched for horses ≥1 year of age, treated between 2008 and 2014 with emergency exploratory celiotomy, and surviving at least 24 hours postoperatively...
February 20, 2018: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29460276/surgery-for-trigger-finger
#12
REVIEW
Haroldo Junior Fiorini, Marcel Jun Tamaoki, Mário Lenza, Joao Baptista Gomes Dos Santos, Flávio Faloppa, Joao Carlos Belloti
BACKGROUND: Trigger finger is a common clinical disorder, characterised by pain and catching as the patient flexes and extends digits because of disproportion between the diameter of flexor tendons and the A1 pulley. The treatment approach may include non-surgical or surgical treatments. Currently there is no consensus about the best surgical treatment approach (open, percutaneous or endoscopic approaches). OBJECTIVES: To evaluate the effectiveness and safety of different methods of surgical treatment for trigger finger (open, percutaneous or endoscopic approaches) in adults at any stage of the disease...
February 20, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29459311/effect-of-hyaluronic-acid-hydrogels-containing-astrocyte-derived-extracellular-matrix-and-or-v2a-interneurons-on-histologic-outcomes-following-spinal-cord-injury
#13
Russell E Thompson, Jennifer Pardieck, Laura Smith, Peter Kenny, Lindsay Crawford, Molly Shoichet, Shelly Sakiyama-Elbert
One reason for the lack of regeneration, and poor clinical outcomes, following central nervous system (CNS) injury is the formation of a glial scar that inhibits new axon growth. In addition to forming the glial scar, astrocytes have been shown to be important for spontaneous SCI recovery in rodents, suggesting some astrocyte populations are pro-regenerative, while others are inhibitory following injury. In this work, the effect of implanting hyaluronic acid (HA) hydrogels containing extracellular matrix (ECM) harvested from mouse embryonic stem cell (mESC)-derived astrocytes on histologic outcomes following SCI in rats was explored...
February 6, 2018: Biomaterials
https://www.readbyqxmd.com/read/29458140/hyaluronan-in-adipogenesis-adipose-tissue-physiology-and-systemic-metabolism
#14
REVIEW
Yi Zhu, Ilja L Kruglikov, Yucel Akgul, Philipp E Scherer
Hyaluronic acid (HA, also known as hyaluronan), is a non-sulfated linear glycosaminoglycan polymer consisting of repeating disaccharide units of d-glucuronic acid and N-acetyl-d-glucosamine abundantly present in the extracellular matrix. The sizes of hyaluronic acid polymers range from 5000 to 20,000,000 Da in vivo, and the functions of HA are largely dictated by its size. Due to its high biocompatibility, HA has been commonly used as soft tissue filler as well as a major component of biomaterial scaffolds in tissue engineering...
February 16, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29457534/comparing-hydrogels-for-human-nucleus-pulposus-cell-regeneration-role-of-osmolarity-during-expansion
#15
Anita Krouwels, Ferry Melchels, Mattie H P Van Rijen, F Cumhur Oner, Wouter Dhert, M Tryfonidou, Laura Creemers
Hydrogels can facilitate nucleus pulposus regeneration, either for clinical application or research into mechanisms of regeneration. However, many different hydrogels and culture conditions for human degenerated nucleus pulposus (NP) have been employed, making literature data difficult to compare. Therefore, we compared six different hydrogels of natural polymers and investigated the role of serum in the medium and of osmolarity during expansion or redifferentation in an attempt to provide comparators for future studies...
February 17, 2018: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/29456044/mesoporous-silica-nanoparticles-functionalized-with-hyaluronic-acid-effect-of-the-biopolymer-chain-length-on-cell-internalization
#16
Valentina Nairi, Silvia Magnolia, Marco Piludu, Mariella Nieddu, Cristian Antonio Caria, Valeria Sogos, Maria Vallet-Regì, Maura Monduzzi, Andrea Salis
Mesoporous silica nanoparticles (MSNs) were functionalized with amino groups (MSN-NH2 ) and then with hyaluronic acid, a biocompatible biopolymer which can be recognized by CD44 receptors in tumor cells, to obtain a targeting drug delivery system. To this purpose, three hyaluronic acid samples differing for the molecular weight, namely HAS (8-15 kDa), HAM (30-50 kDa) and HAL (90-130 kDa), were used. The MSN-HAS , MSN-HAM , and MSN-HAL materials were characterized through zeta potential and dynamic light scattering measurements at pH = 7...
February 12, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29456012/injectable-and-body-temperature-sensitive-hydrogels-based-on-chitosan-and-hyaluronic-acid-for-ph-sensitive-drug-release
#17
Wei Zhang, Xin Jin, Heng Li, Run-Run Zhang, Cheng-Wei Wu
Hydrogels based on chitosan/hyaluronic acid/β-sodium glycerophosphate demonstrate injectability, body temperature sensitivity, pH sensitive drug release and adhesion to cancer cell. The drug (doxorubicin) loaded hydrogel precursor solutions are injectable and turn to hydrogels when the temperature is increased to body temperature. The acidic condition (pH 4.00) can trigger the release of drug and the cancer cell (Hela) can adhere to the surface of the hydrogels, which will be beneficial for tumor site-specific administration of drug...
April 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29455990/enhancement-of-bio-stability-and-mechanical-properties-of-hyaluronic-acid-hydrogels-by-tannic-acid-treatment
#18
Ho-Yong Lee, Chang-Ha Hwang, Hyoun-Ee Kim, Seol-Ha Jeong
Hyaluronic acid (HA) has been widely investigated because of its excellent biocompatibility and its ability to form hydrogels with various chemical modifications. However, HA hydrogels undergo rapid degradation and exhibit poor mechanical stability under physiological conditions. Tannic acid (TA), a naturally occurring polyphenol found in plants and fruits, has recently attracted interest as a crosslinking agent because of its abundant hydroxyl groups. In this study, we prepared HA hydrogels chemically crosslinked by polyethylene glycol diglycidyl ether (PEGDE) and treated with TA in an attempt to enhance the physical properties of HA hydrogels...
April 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29455984/hyaluronate-coating-enhances-the-delivery-and-biocompatibility-of-gold-nanoparticles
#19
Bedia Begum Karakocak, Jue Liang, Pratim Biswas, Nathan Ravi
For targeted delivery with nanoparticles (NPs) as drug carriers, it is imperative that the NPs are internalized into the targeted cell. Surface properties of NPs influence their interactions with cells. We examined the responses of retinal pigment epithelial cells, NIH 3T3 fibroblast cells, and Chinese hamster ovary cells to gold nanoparticles (Au NPs) in their nascent form as well as coated with end-thiolated hyaluronate (HS-HA). The grafting density of HS-HA on Au NPs was calculated based on total organic carbon measurements and thermal gravimetric analysis...
April 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29455283/utilizing-hyaluronic-acid-as-a-versatile-platform-for-fluorescence-resonance-energy-transfer-based-glucose-sensing
#20
Minghao Ge, Pengli Bai, Mingli Chen, Jingjing Tian, Jun Hu, Xu Zhi, Huancai Yin, Jian Yin
Here, we utilized the ultrasonic emulsification technique to generate hyaluronic acid microspheres incorporating a fluorescence-based glucose biosensor. We synthesized a novel lanthanide ion luminophore based on Eu3+ . Eu sulfosuccinimidyl dextran (Eu-dextran) and Alexa Fluor 647 sulfosuccinimidyl-ConA (Alexa Fluor 647-ConA) were encapsulated in hyaluronic acid hydrogel to generate microspheres. Glucose sensing was carried out using a fluorescence resonance energy transfer (FRET)-based assay principle. A proportional fluorescence intensity increase was found within a 0...
February 17, 2018: Analytical and Bioanalytical Chemistry
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