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https://www.readbyqxmd.com/read/27936459/mir-23a-inhibited-il-17-mediated-proinflammatory-mediators-expression-via-targeting-ikk%C3%AE-in-articular-chondrocytes
#1
Junzheng Hu, Chenjun Zhai, Jiaojiao Hu, Zeng Li, Hao Fei, Zhen Wang, Weimin Fan
The inflammatory cytokine interleukin 17 (IL-17) is an important contributor of rheumatoid arthritis (RA) chronicity. Although several microRNAs (miRNAs) have been shown to regulate RA pathogenesis, the function of miRNAs in articular chondrocytes during rheumatoid arthritis pathogenesis is unclear. Here we showed that miR-23a was downregulated in articular cartilage tissues from rheumatoid arthritis patients. MiR-23a suppressed IL-17 inflammatory cytokine-induced NF-κB activation and several proinflammatory mediators expression, such as cytokine IL-6, chemokine MCP-1, and matrix metalloproteinase MMP-3 in articular chondrocytes...
December 6, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27936066/the-influence-of-articular-cartilage-thickness-reduction-on-meniscus-biomechanics
#2
Piotr Łuczkiewicz, Karol Daszkiewicz, Jacek Chróścielewski, Wojciech Witkowski, Pawel J Winklewski
OBJECTIVE: Evaluation of the biomechanical interaction between meniscus and cartilage in medial compartment knee osteoarthritis. METHODS: The finite element method was used to simulate knee joint contact mechanics. Three knee models were created on the basis of knee geometry from the Open Knee project. We reduced the thickness of medial cartilages in the intact knee model by approximately 50% to obtain a medial knee osteoarthritis (OA) model. Two variants of medial knee OA model with congruent and incongruent contact surfaces were analysed to investigate the influence of congruency...
2016: PloS One
https://www.readbyqxmd.com/read/27935109/transplantation-of-human-skeletal-muscle-derived-progenitor-cells-ameliorates-knee-osteoarthritis-in-streptozotocin-induced-diabetic-mice
#3
Ding-Cheng Chan, Chen-Yuan Chiu, Kuo-Cheng Lan, Te-I Weng, Rong-Sen Yang, Shing-Hwa Liu
The epidemiological and experimental evidence suggests that diabetes can be an independent risk factor for osteoarthritis. The osteoarthritis-like cartilage damage has been shown in streptozotocin-induced diabetic mice. The therapeutic effects of human skeletal muscle-derived progenitor cells (HSMPCs) on diabetic osteoarthritis still remain unclear. Here, we investigated the therapeutic potential of HSMPCs on diabetic knee osteoarthritis. The in vitro chondrogenic ability of HSMPCs was determined by pellet culture assay...
December 9, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27935105/identifying-the-optimum-source-of-mesenchymal-stem-cells-for-use-in-knee-surgery
#4
Benjamin M Davies, Sarah Jb Snelling, Lynn Quek, Osnat Hakimi, Hua Ye, Andrew Carr, Andrew J Price
Single sitting procedures where the mononuclear cell fraction is extracted from bone marrow and implanted directly into cartilage and bone defects are becoming more popular as novel treatments for cartilage defects which have, until now had few treatment options. This is on the basis that the mesenchymal stem cells (MSCs) contained within will repair the damaged tissue. This study sought to determine if the femur and tibia could provide equivalent amounts of mesenchymal stem cells, with equivalent viability and proliferative capacity, to that obtained from the gold standard of the pelvis in order to potentially reduce the morbidity associated with these procedures...
December 9, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27933630/comparison-of-cartilage-with-temporalis-fascia-tympanoplasty-a-meta-analysis-of-comparative-studies
#5
REVIEW
Mir Mohammad Jalali, Masoud Motasaddi, Ali Kouhi, Sasan Dabiri, Robabeh Soleimani
OBJECTIVE: To systematically review the results of type 1 tympanoplasty with temporalis fascia (TF) versus cartilage in patients with chronic otitis media (COM) for graft integration and hearing improvement. DATA SOURCES: The English language literature (until June 1, 2016) was searched, using Medline (via PubMed), Scopus, ProQuest, Ovid, Cochrane database, and Google Scholar. REVIEW METHODS: A comprehensive review of the literature was performed...
December 9, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27932858/one-stage-bone-strip-reconstruction-technique-with-balloon-sinus-dilatation-surgery-for-chronic-maxillary-atelectasis
#6
Tomoyuki Kashima, Robert A Goldberg, Jocelyne C Kohn, Daniel B Rootman
PURPOSE: Chronic maxillary atelectasis is characterized by unilateral spontaneous enophthalmos and hypoglobus due to increased orbital volume secondary to maxillary sinus inward deformation. Reformation of the sinus architecture and reconstruction of the orbit are key to a successful outcome. Here, we introduce a one-staged surgery that addresses both these goals. PATIENTS AND METHODS: We retrospectively reviewed 11 patients treated with one-stage orbital and sinus surgery...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27932245/knockdown-of-trem-1-suppresses-il-1%C3%AE-induced-chondrocyte-injury-via-inhibiting-the-nf-%C3%AE%C2%BAb-pathway
#7
Jianfei Tang, Qirong Dong
Triggering receptor expressed on myeloid cells 1 (TREM-1) is a recently discovered molecule that modulates inflammatory responses. This study aimed to investigate the specific function of TREM-1 in chondrocytes and its association with the pathophysiology of osteoarthritis (OA). We observed upregulation of TREM-1 in OA cartilage compared to normal tissues. Knockdown of TREM-1 suppressed interleukin 1 beta (IL-1β)-induced extracellular matrix (ECM) metabolic imbalance, pro-inflammatory cytokine production, decrease in cell viability and apoptosis...
December 5, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27931954/younger-patients-have-less-severe-radiographic-disease-and-lower-reported-outcome-scores-than-older-patients-undergoing-total-knee-arthroplasty
#8
Jacob Haynes, Adam Sassoon, Denis Nam, Loren Schultz, James Keeney
BACKGROUND: Total knee arthroplasty (TKA) has been successful for many younger patients, but some experience residual symptoms or dissatisfaction. We performed this study to assess the relationship between radiographic disease severity and patient demographic features on patient reported TKA outcome scores. METHODS: We compared 100 TKAs performed for 82 patients ≤55years old with 100 gender-matched TKAs performed for 85 patients between 65 and 75years old. These study cases represented 25% and 21%, respectively, of TKAs performed between January 2006 and June 2011...
December 5, 2016: Knee
https://www.readbyqxmd.com/read/27931264/centrifugal-gravity-induced-bmp4-induces-chondrogenic-differentiation-of-adipose-derived-stem-cells-via-sox9-upregulation
#9
Yeonsue Jang, Hyerin Jung, Yoojun Nam, Yeri Alice Rim, Juryun Kim, Sang Hoon Jeong, Ji Hyeon Ju
BACKGROUND: Cartilage does not have the capability to regenerate itself. Therefore, stem cell transplantation is a promising therapeutic approach for impaired cartilage. For stem cell transplantation, in vitro enrichment is required; however, stem cells not only become senescent but also lose their differentiation potency during this process. In addition, cytokines are normally used for chondrogenic differentiation induction of stem cells, which is highly expensive and needs an additional step to culture...
December 8, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27931263/extracellular-matrix-components-and-culture-regimen-selectively-regulate-cartilage-formation-by-self-assembling-human-mesenchymal-stem-cells-in-vitro-and-in-vivo
#10
Johnathan Ng, Yiyong Wei, Bin Zhou, Aonnicha Burapachaisri, Edward Guo, Gordana Vunjak-Novakovic
BACKGROUND: Cartilage formation from self-assembling mesenchymal stem cells (MSCs) in vitro recapitulate important cellular events during mesenchymal condensation that precedes native cartilage development. The goal of this study was to investigate the effects of cartilaginous extracellular matrix (ECM) components and culture regimen on cartilage formation by self-assembling human MSCs in vitro and in vivo. METHODS: Human bone marrow-derived MSCs (hMSCs) were seeded and compacted in 6...
December 9, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27930985/c1q-tnf-related-protein-3-exerts-the-chondroprotective-effects-in-il-1%C3%AE-treated-sw1353-cells-by-regulating-the-fgfr1-signaling
#11
Yuanxia Huang, Guang Wan, Jingang Tao
Cartilage degeneration is known as a major cause of osteoarthritis (OA). C1q/TNF-related protein-3 (CTRP3) is an adipokine relative to chondrogenesis in vitro. However, its effect on cartilage degeneration in OA remains unclearly. In the present study, SW1353 cells were treated with IL-1β to imitate the microenvironment of OA for vitro research. Then, an obvious down-regulation of CTRP3 were validated in IL-1β-treated SW1353 cells. In addition, CTRP3 overexpression significantly attenuated the decrease in cell proliferation and increase in cell apoptosis triggered by IL-1β...
December 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27930895/osteoarthrosis-of-temporomandibular-joint-related-to-the-defects-of-posterior-dentition-a-retrospective-study
#12
Jitka Levorová, Vladimír Machoň, Anasuya Guha, René Foltán
Osteoarthrosis (OA) of temporomandibular joint (TMJ) is a progressive degenerative disease, gradually affecting cartilage, synovial membrane and bone structures. OA of TMJ clinically manifests with joint noises, pain and restricted mouth opening. In late stages, it results in severe damage of TMJ structures and development of ankylosis. Osteoarthrosis is a multifactorial disease; the occurrence is associated with TMJ overloading. The cohort included 619 patients [538 women (87%) and 81 men (13%), with average age 40...
2016: Prague Medical Report
https://www.readbyqxmd.com/read/27930520/is-retrograde-drilling-really-useful-for-osteochondral-lesion-of-talus-with-subchondral-cyst-a-case-report
#13
Seong-Yup Jeong, Jong-Kil Kim, Kwang-Bok Lee
RATIONALE: Retrograde drilling is a well accepted procedure for osteochondral lesion of the talus and subchondral cyst with intact overlying cartilage. It has good results in most reports. Compared to anterograde drilling, retrograde drilling can protect the integrity of the articular cartilage. The purpose of this study was to evaluate the suitability of using retrograde drilling for osteochondral lesion with subchondral cyst and discuss the mechanism involved in the development of subchondral cyst...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27930470/correction-of-lying-ears-by-augmentation-of-the-conchoscaphal-angle
#14
Sung-Eun Kim, Chi-Ho Yeo, Taegon Kim, Yong-Ha Kim, Jun Ho Lee, Kyu-Jin Chung
Lying ears are defined as ears that protrude less from the head, and in frontal view, are characterized by lateral positioning of antihelical contour relative to the helical rim. These aesthetically displeasing ears require correction in accord with the goals of otoplasty stated by McDowell. The authors present a case of lying ears treated by correcting the conchomastoid angle using Z-plasty, resection of posterior auricular muscle, and correction of the conchoscaphal angle by releasing cartilage using 2 full-thickness incisions and grafting of a conchal cartilage spacer...
December 7, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27929434/nutraceutical-supplements-in-the-management-and-prevention-of-osteoarthritis
#15
REVIEW
Paola Castrogiovanni, Francesca Maria Trovato, Carla Loreto, Houda Nsir, Marta Anna Szychlinska, Giuseppe Musumeci
Nutraceuticals are dietary compounds which have a role in the balance of anabolic and catabolic signals in joints. Their regulatory function on homeostasis of cartilage metabolism nutraceuticals is increasingly considered for the management and, above all, the prevention of osteoarthritis (OA). OA is a degenerative disease characterized by cartilage and synovium inflammation that can cause joint stiffness, swelling, pain, and loss of mobility. It is a multifactorial disease and, due to the great percentage of people suffering from it and the general increase in life expectancy, OA is considered as one of the most significant causes of disability in the world...
December 6, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27929384/noninvasive-treatment-of-acquired-subglottic-stenosis
#16
Kayhan Ozturk, Omer Erdur, Fuad Sofiyev, Ibrahim Ozkan Onal, Ali Annagur
A 23-day-old infant referred to the neonatal intensive care unit with difficulty breathing and inspiratory stridor increasing with exercise. Medical history included a cardiothoracic surgery for transposition of the great arteries, patent ductus arteriosus, atrial septal defect, and a history of intensive care unit from surgery. Flexible fiberoptic transnasal laryngoscopy revealed subglottic stenosis that was probably caused by prolonged intubation with a higher airway pressure. Computed tomographic scan of the neck showed a tiny stenosis without cartilage deformity and limited in subglottic region...
July 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27929080/tgf-%C3%AE-regulates-phosphorylation-and-stabilization-of-sox9-protein-in-chondrocytes-through-p38-and-smad-dependent-mechanisms
#17
George Coricor, Rosa Serra
Members of the TGF-β superfamily are important regulators of chondrocyte function. Sox9, a key transcriptional regulator of chondrogenesis, is required for TGF-β-mediated regulation of specific cartilage genes. TGF-β can signal through a canonical, Smad-mediated pathway or non-conical pathways, including p38. Here we show that both pathways are activated in chondrocytes after treatment with TGF-β and that TGF-β stabilizes Sox9 protein and increases phosphorylation of Sox9. Mutagenesis of potential serine phosphorylation sites on Sox9 was used to demonstrate that serine 211 is required to maintain normal basal levels of Sox9 as well as mediate increased Sox9 levels in response to TGF-β...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27927236/chronic-infantile-neurological-cutaneous-and-articular-cinca-syndrome-a-review
#18
REVIEW
Martina Finetti, Alessia Omenetti, Silvia Federici, Roberta Caorsi, Marco Gattorno
INTRODUCTION: The Chronic Infantile Neurological Cutaneous and Articular (CINCA, or Neonatal-onset multisystem inflammatory disease NOMID) is a rare autoinflammatory disease identified in 1987 by Prieur et al., typically characterized by the triad of skin rash, arthropathy and central nervous system manifestations. It represents the most severe phenotype of the cryopyrin-associated periodic syndrome (CAPS). CLINICAL DESCRIPTION AND ETIOLOGY: The syndrome is due to autosomal dominant gain of function mutations in NLRP3, which encodes a key component of the innate immunity that regulates the activation and secretion of interleukin (IL)-1β...
December 7, 2016: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/27926509/photo-crosslinked-hama-hydrogel-with-cordycepin-encapsulated-chitosan-microspheres-for-osteoarthritis-treatment
#19
Chen Xia, Pengfei Chen, Sheng Mei, Lei Ning, Chenyang Lei, Jiying Wang, Jianfeng Zhang, Jianjun Ma, Shunwu Fan
Autophagy is a protective mechanism in normal cartilage. The present study aimed to investigate the synergistic therapeutic effect of promotion of chondrocyte autophagy via exposure to cordycepin encapsulated by chitosan microspheres (CM-cordycepin) and photo-crosslinked hyaluronic acid methacrylate (HAMA) hydrogel, with the goal of evaluating CM-cordycepin as a treatment for patients with osteoarthritis. First, we developed and evaluated the characteristics of HAMA hydrogels and chitosan microspheres. Next, we measured the effect of cordycepin on cartilage matrix degradation induced by IL1-β in chondrocytes and an ex vivo model...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27925675/effect-of-increasing-low-intensity-pulsed-ultrasound-and-a-functional-appliance-on-the-mandibular-condyle-in-growing-rats
#20
Harmanpreet Kaur, Hasan Uludağ, Douglas N Dederich, Tarek El-Bialy
OBJECTIVES: Functional appliances are used for treatment of lower-jaw deficiencies in growing individuals; however, their effectiveness is debatable. Low-intensity pulsed ultrasound (US) is a noninvasive method, which has been shown to stimulate cartilage and bone formation with 20 minutes of application. This study was designed to test the hypothesis that increasing low-intensity pulsed US application from 20 to 40 min/d will enhance mandibular condylar growth in growing rats, especially when combined with a functional appliance...
November 28, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
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