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https://www.readbyqxmd.com/read/29123550/mesenchymal-stem-cells-for-cartilage-regeneration-of-tmj-osteoarthritis
#1
REVIEW
Dixin Cui, Hongyu Li, Xin Xu, Ling Ye, Xuedong Zhou, Liwei Zheng, Yachuan Zhou
Temporomandibular joint osteoarthritis (TMJ OA) is a degenerative disease, characterized by progressive cartilage degradation, subchondral bone remodeling, synovitis, and chronic pain. Due to the limited self-healing capacity in condylar cartilage, traditional clinical treatments have limited symptom-modifying and structure-modifying effects to restore impaired cartilage as well as other TMJ tissues. In recent years, stem cell-based therapy has raised much attention as an alternative approach towards tissue repair and regeneration...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29107477/contribution-of-implanted-genetically-modified-muscle-progenitor-cells-expressing-bmp-2-to-new-bone-formation-in-a-rat-osseous-defect
#2
Rodolfo E De La Vega, Consuelo Lopez De Padilla, Miguel Trujillo, Nicholas Quirk, Ryan M Porter, Christopher H Evans, Elisabeth Ferreira
Because muscle contains osteoprogenitor cells and has a propensity to form bone, we have explored its utility in healing large osseous defects. Healing is achieved by the insertion of muscle fragments transduced with adenovirus encoding BMP-2 (Ad.BMP-2). However, it is not known whether the genetically modified muscle contributes osteoprogenitor cells to healing defects or merely serves as a local source of BMP-2. This question is part of the larger debate on the fate of progenitor cells introduced into sites of tissue damage to promote regeneration...
October 5, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29063586/protein-expression-during-early-stages-of-bone-regeneration-under-hydrophobic-and-hydrophilic-titanium-domes-a-pilot-study
#3
E Calciolari, N Mardas, X Dereka, A K Anagnostopoulos, G T Tsangaris, N Donos
BACKGROUND AND OBJECTIVES: There is significant evidence that, during the early stages of osseointegration, moderately rough hydrophilic (SLActive) surfaces can accelerate osteogenesis and increase bone-to-implant contact in comparison to hydrophobic (SLA) surfaces. However, very little is known regarding the molecular mechanisms behind the influence that surface chemistry modifications to increase hydrophilicity determine on bone healing. The aim of this study was to describe for the first time the proteins and related signalling pathways expressed during early osseous healing stages under SLA and SLActive titanium domes for guided bone regeneration...
October 24, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29025250/ceramic-polylactide-composite-material-used-in-a-model-of-healing-of-osseous-defects-in-rabbits
#4
Paweł Myciński, Joanna Zarzecka, Agnieszka Skórska-Stania, Agnieszka Jelonek, Krzysztof Okoń, Maria Wróbel
The growing demand for various kinds of bone regeneration material has in turn increased the desire to find materials with optimal physical, chemical, and biological properties. The objective of the present study was to identify the proportions of ceramic and polylactide components in a bone substitute material prepared in collaboration with the Crystal Chemistry of Drugs Team of the Faculty of Chemistry at the Jagiellonian University, which would be optimal for bone regeneration processes. Another goal was to provide a histological analysis of the influence of a ceramic-polylactide composite on the healing of osseous defects in rabbits...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/28992803/collagen-sponge-functionalized-with-chimeric-anti-bmp-2-monoclonal-antibody-mediates-repair-of-nonunion-tibia-defects-in-a-nonhuman-primate-model-an-exploratory-study
#5
Lijia Guo, Seiko Min, Yingying Su, Jianxia Tang, Juan Du, Bee Tin Goh, Leonardo Saigo, Songlin Wang, Sahar Ansari, Alireza Moshaverinia, Homayoun H Zadeh, Yi Liu
Recombinant human bone morphogenetic protein (BMP)-2 is an FDA-approved therapy for nonunion tibia fracture, though it has a number of biological and practical disadvantages. Our research group has developed a novel tissue engineering strategy termed antibody-mediated osseous regeneration. This entails application of anti-BMP-2 monoclonal antibodies (mAbs) to capture endogenous BMP's to mediate in vivo bone formation. This has been documented in a number of animal models. The present exploratory study sought to investigate the application of antibody-mediated osseous regeneration for repair of nonunion tibia defect in a nonhuman primate model...
October 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28982588/low-1-level-mechanical-vibration-improves-bone-microstructure-tissue-mechanical-properties-and-porous-titanium-implant-osseointegration-by-promoting-anabolic-response-in-type-1-diabetic-rabbits
#6
Da Jing, Zedong Yan, Jing Cai, Shichao Tong, Xiaokang Li, Zheng Guo, Erping Luo
Type 1 diabetes mellitus (T1DM) is associated with reduced bone mass, increased fracture risk, and impaired bone defect regeneration potential. These skeletal complications are becoming important clinical challenges due to the rapidly increasing T1DM population, which necessitates developing effective treatment for T1DM-associated osteopenia/osteoporosis and bone trauma. This study aims to investigate the effects of whole-body vibration (WBV), an easy and non-invasive biophysical method, on bone microstructure, tissue-level mechanical properties and porous titanium (pTi) osseointegration in alloxan-diabetic rabbits...
October 2, 2017: Bone
https://www.readbyqxmd.com/read/28951742/guided-bone-regeneration-using-collagen-scaffolds-growth-factors-and-periodontal-ligament-stem-cells-for-treatment-of-peri-implant-bone-defects-in-vivo
#7
Peer W Kämmerer, Malte Scholz, Maria Baudisch, Jan Liese, Katharina Wegner, Bernhard Frerich, Hermann Lang
INTRODUCTION: The aim of the study was an evaluation of different approaches for guided bone regeneration (GBR) of peri-implant defects in an in vivo animal model. MATERIALS AND METHODS: In minipigs (n = 15), peri-implant defects around calcium phosphate- (CaP-; n = 46) coated implants were created and randomly filled with (1) blank, (2) collagen/hydroxylapatite/β-tricalcium phosphate scaffold (CHT), (3) CHT + growth factor cocktail (GFC), (4) jellyfish collagen matrix, (5) jellyfish collagen matrix + GFC, (6) collagen powder, and (7) collagen powder + periodontal ligament stem cells (PDLSC)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28893033/comparative-evaluation-of-bioactive-glass-putty-and-platelet-rich-fibrin-in-the-treatment-of-human-periodontal-intrabony-defects-a-randomized-control-trial
#8
Akbar Naqvi, D Gopalakrishnan, Meenu Taneja Bhasin, Nilima Sharma, Khushtar Haider, Santosh Martande
INTRODUCTION: Platelet-Rich Fibrin (PRF) and bioactive glass putty have been shown to be effective in promoting reduction in probing depth, gain in clinical attachment, and defect fill in intrabony periodontal defects. The individual role played by bioactive glass putty in combination with PRF is yet to be elucidated. AIM: To compare the clinical effectiveness of the combination of PRF and bioactive glass putty and bioactive glass putty alone as regenerative techniques for intrabony defects in humans...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28875278/investigation-of-peri-implant-tissue-conditions-and-peri-implant-tissue-stability-in-implants-placed-with-simultaneous-augmentation-procedure-a-3-year-retrospective-follow-up-analysis-of-a-newly-developed-bone-level-implant-system
#9
Jonas Lorenz, Henriette Lerner, Robert A Sader, Shahram Ghanaati
BACKGROUND: Guided bone regeneration (GBR) has been proven to be a reliable therapy to regenerate missing bone in cases of atrophy of the alveolar crest. The aim of the present retrospective analysis was to assess peri-implant tissue conditions and document peri-implant tissue stability in C-Tech implants when placed simultaneously with a GBR augmentation procedure. METHODS: A total of 47 implants, which were placed simultaneously with a GBR procedure with a synthetic bone substitute material in 20 patients, were investigated clinically and radiologically at least 3 years after loading...
September 5, 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28863592/numerical-evaluation-of-the-backward-propagating-acoustic-field-in-healing-long-bones
#10
Vassiliki T Potsika, Vasilios C Protopappas, Konstantinos N Grivas, Theodoros V Gortsas, Kay Raum, Demosthenes K Polyzos, Dimitrios I Fotiadis
The propagation of ultrasound in healing long bones induces complex scattering phenomena due to the interaction of an ultrasonic wave with the composite nature of callus and osseous tissues. This work presents numerical simulations of ultrasonic propagation in healing long bones using the boundary element method aiming to provide insight into the complex scattering mechanisms and better comprehend the state of bone regeneration. Numerical models of healing long bones are established based on scanning acoustic microscopy images from successive postoperative weeks considering the effect of the nonhomogeneous callus structure...
August 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28844964/regenerating-bone-with-bioactive-glass-scaffolds-a-review-of-in-vivo-studies-in-bone-defect-models
#11
REVIEW
Aiah A El-Rashidy, Judith A Roether, Leila Harhaus, Ulrich Kneser, Aldo R Boccaccini
Large bone defects resulting from fractures and disease are a medical concern, being often unable to heal spontaneously by the body's repair mechanisms. Bone tissue engineering (BTE) is a promising approach for treating bone defects through providing a template to guide osseous regeneration. 3D scaffolds with microstructure mimicking host bone are necessary in common BTE strategies. Bioactive glasses (BGs) attract researchers' attention as BTE scaffolds as they are osteoconductive and osteoinductive in certain formulations...
August 24, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28820320/autologous-platelet-rich-fibrin-in-the-treatment-of-3-wall-intrabony-defects-in-aggressive-periodontitis-a-randomized-controlled-clinical-trial
#12
Pavan Bajaj, Esha Agarwal, Nishanth S Rao, Savitha B Naik, A R Pradeep, Nitish Kalra, N Priyanka, Minal Kumari
BACKGROUND: Platelet rich fibrin (PRF), has recently found its application in osseous regeneration. The aim of present study is to explore the efficacy of PRF in treatment of intrabony defects in aggressive periodontitis. MATERIAL AND METHODS: 54 intrabony defects in 17 patients were treated either with autologous PRF with open flap debridement (OFD) or OFD alone. Clinical and radiological parameters such as probing depth (PD), clinical attachment level (CAL), intrabony defect depth and % defect change were recorded at baseline and 9 months postoperatively...
August 18, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28748054/autologous-periodontal-stem-cell-assistance-in-periodontal-regeneration-technique-sai-prt-in-the-treatment-of-periodontal-intrabony-defects-a-case-report-with-one-year-follow-up
#13
Vandana Kl, Haneet Ryana, Priyanka Jairaj Dalvi
Numerous animal and human studies have provided evidence supporting the belief that periodontal ligament stem cells (PDLSCs) can be harnessed for regeneration of periodontal tissues. Based on current literature on the use of ex vivo stem culture and associated problems, this case report describes a novel approach of direct application PDLSCs using stem cell assistance in periodontal regeneration technique (SAI-PRT) for the regeneration of intrabony periodontal defects bypassing ex vivo cultures. SAI-PRT has emerged as a constructive avenue in the treatment of periodontal osseous defects...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/28736687/tissue-engineered-tendon-for-enthesis-regeneration-in-a-rat-rotator-cuff-model
#14
Michael J Smietana, Pablo Moncada-Larrotiz, Ellen M Arruda, Asheesh Bedi, Lisa M Larkin
Healing of rotator cuff (RC) injuries with current suture or augmented scaffold techniques fails to regenerate the enthesis and instead forms a weaker fibrovascular scar that is prone to subsequent failure. Regeneration of the enthesis is the key to improving clinical outcomes for RC injuries. We hypothesized that the utilization of our tissue-engineered tendon to repair either an acute or a chronic full-thickness supraspinatus tear would regenerate a functional enthesis and return the biomechanics of the tendon back to that found in native tissue...
2017: BioResearch Open Access
https://www.readbyqxmd.com/read/28725934/-scaffold-based-bone-tissue-engineering
#15
REVIEW
B M Holzapfel, M Rudert, D W Hutmacher
Tissue engineering provides the possibility of regenerating damaged or lost osseous structures without the need for permanent implants. Within this context, biodegradable and bioresorbable scaffolds can provide structural and biomechanical stability until the body's own tissue can take over their function. Additive biomanufacturing makes it possible to design the scaffold's architectural characteristics to specifically guide tissue formation and regeneration. Its nano-, micro-, and macro-architectural properties can be tailored to ensure vascularization, oxygenation, nutrient supply, waste exchange, and eventually ossification not only in its periphery but also in its center, which is not in direct contact with osteogenic elements of the surrounding healthy tissue...
August 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28717292/conservative-management-of-unicystic-ameloblastoma-in-young-patients-a-prospective-single-center-trial-and-review-of-literature
#16
Mitsu Meshram, Lalit Sagarka, Jigar Dhuvad, Sonal Anchlia, Siddharth Vyas, Harsh Shah
AIMS: The study intends to evaluate the clinical outcome of treating young patients of unicystic ameloblastoma, by various conservative treatment modalities such as marsupialization, enucleation with bone curettage and aid in establishing sound treatment guidelines. MATERIALS AND METHODS: A case series of fifteen patients is presented of unicystic ameloblastoma, who presented to our Department over the past 6 years (2010-2015) and conservative method of treatment elected in all the patients...
September 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28713017/intracellular-co-delivery-of-sr-ion-and-phenamil-drug-through-mesoporous-bioglass-nanocarriers-synergizes-bmp-signaling-and-tissue-mineralization
#17
Jung-Hwan Lee, Nandin Mandakhbayar, Ahmed El-Fiqi, Hae-Won Kim
Inducing differentiation and maturation of resident multipotent stem cells (MSCs) is an important strategy to regenerate hard tissues in mal-calcification conditions. Here we explore a co-delivery approach of therapeutic molecules comprised of ion and drug through a mesoporous bioglass nanoparticle (MBN) for this purpose. Recently, MBN has offered unique potential as a nanocarrier for hard tissues, in terms of high mesoporosity, bone bioactivity (and possibly degradability), tunable delivery of biomolecules, and ionic modification...
July 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28696960/sinus-floor-augmentation-with-ambient-blood-and-an-absorbable-collagen-sponge-a-prospective-pilot-clinical-study
#18
Antoine Berberi, Nabih Nader, Rita Bou Assaf, Hussein Fayyad-Kazan, Saad Khairalah, Nabil Moukarzel
PURPOSE: The aim of this study was to clinically, radiologically, and histologically evaluate a sinus augmentation technique using a resorbable collagen sponge to maintain space between the Schneiderian membrane and the residual crestal bone. MATERIALS AND METHODS: Patients with partially edentulous maxillae were clinically and radiographically evaluated for implant placement. A total of 10 consecutive patients with the bone height for implant placement (<4.0 mm) were enrolled in the study...
October 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28677589/regeneration-of-periapical-lesions-post-endodontic-treatment-and-periapical-surgeries-in-experimental-animals-utilizing-thermo-responsive-nano-%C3%AE-tricalcium-phosphate-chitosan-hydrogel-a-proof-of-concept
#19
Wafa I Abdel-Fattah, Salma Hassan El Ashry, Ghareib W Ali, Mohamed Aiad Abdel Hamid, Amina Gamal El-Din, Bassma El-Ashry
Using phosphate nanoparticles/polymeric hydrogels presents an interesting approach, especially concerning the reduced particle migration and enhanced biocompatibility. The current work aims to achieve a proof of concept for the development of a thermo-sensitive nano β-tricalcium phosphate (β-TCP)/chitosan (Cs)/glycerophosphate (Gl)/glyoxal (Gly) hydrogel to be applied in periapical surgeries post endodontic treatment. Physicochemical characterization using x-ray powder diffraction, Fourier transform infrared, TEM and SEM was performed...
July 5, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28672135/local-application-of-platelet-rich-fibrin-during-lower-third-molar-extraction-improves-treatment-outcomes
#20
REVIEW
Yun He, Junliang Chen, Yue Huang, Qin Pan, Minhai Nie
PURPOSE: Application of platelet-rich fibrin (PRF) during tooth extraction is able to accelerate wound healing, stimulate osseous and soft tissue regeneration, and reduce unwanted side effects. The aim of this meta-analysis was to investigate the effect of local application of PRF on controlling postoperative signs and symptoms after the extraction of an impacted lower third molar. MATERIALS AND METHODS: A systematic search of PubMed, Web of Science, Embase, and the Cochrane Library was performed to identify all studies published up to October 2016 that investigated the effect of PRF on lower third molar extraction...
June 8, 2017: Journal of Oral and Maxillofacial Surgery
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