44,309 results match your criteria Osteogenesis Imperfecta
J Pediatr Orthop 2019 Jan;39(1):e12-e17
Children's Healthcare of Atlanta.
Introduction: The insertion of 2 elastic stable intramedullary nails (ESINs) is a common treatment for pediatric femur fractures. However, the use of this technique in length-unstable or metadiaphyseal fractures has historically been associated with higher complication rates. To improve stability, the addition of a third ESIN has been assessed biomechanically and clinically, but the addition of a fourth nail has only been evaluated biomechanically. Read More
J Oral Implantol 2018 Dec 12. Epub 2018 Dec 12.
5 Stomatological Hospital, Southern Medical University, Guangzhou, China.
This study evaluated the effect of ultraviolet functionalization (UV) on bone integration ability in rabbit model, using epifluorescence microscopy. Each of twelve rabbits (n=6) received randomly four titanium domes prepared with or without ultraviolet for 48 hours (UVC,λ= 250 ± 20 nm; Philips, Tokyo, Japan): (1) turned surface (T), (2) turned surface with UV(T-UV), (3) sandblasted (120 μm aluminum oxide) and etched by 18% hydrochloric acid and 49% sulphuric acid at 60°C for 30 min (SLA) and (4) SLA surface with UV(SLA-UV). Fluorochrome bone labels were marked by oxytetracycline at 25 mg/kg on 13th days and 14th days and calcein at 5 mg/kg on 3th days and 4th days before euthanization. Read More
Cell Death Dis 2018 Dec 11;9(12):1188. Epub 2018 Dec 11.
Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, Chongqing Medical University, 400016, Chongqing, China.
Notch signaling pathway is one of the most important pathways to regulate intercellular signal transduction and is crucial in the regulation of bone regeneration. Nephroblastoma overexpressed (NOV or CCN3) serves as a non-canonical secreted ligand of Notch signaling pathway and its role in the process of osteogenic differentiation of mesenchymal stem cells (MSCs) was undefined. Here we conducted a comprehensive study on this issue. Read More
Biomed Pharmacother 2018 Dec 8;110:602-608. Epub 2018 Dec 8.
Department of Orthopedics, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan, Hubei, 430060, China. Electronic address:
Background: Osteoblasts play important roles in the process of osteogenesis and prevention of osteonecrosis. Dexamethasone (Dex), a type of glucocorticoids (GCs), induces apoptosis of osteoblasts and leads to the occurrence of non-traumatic osteonecrosis. This study aimed to explore the effects of phosphatidylinositol 3-kinase/Protein kinase 3 (PI3K/AKT) and glycogen synthase kinase 3β (GSK3β) on Dex-induced osteoblasts apoptosis. Read More
J Tissue Eng Regen Med 2018 Dec 11. Epub 2018 Dec 11.
Biological Systems Engineering Laboratory, Department of Chemical Engineering and Chemical Technology, Imperial College London, London, UK.
Biomimetic materials are essential for the production of clinically relevant bone grafts for bone tissue engineering applications. Their ability to modulate stem cell proliferation and differentiation can be used to harness the regenerative potential of those cells and optimize the efficiency of engineered bone grafts. The arginyl-glycyl-aspartic acid (RGD) peptide has been recognized as the adhesion motif of various extracellular matrix proteins and can affect stem cell behaviour in biomaterials. Read More
J Cell Mol Med 2018 Dec 8. Epub 2018 Dec 8.
Henan Joint International Research Laboratory of Stem Cell Medicine, College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, China.
As is previously reported, mesenchymal stem cells have potential ability to differentiate into osteocytes. However, the underlying mechanism during this biological process is poorly understood. In the present study, we identify a novel long non-coding RNA named HOXA-AS2 as a critical regulator during the formation of osteogenesis. Read More
J Cell Physiol 2018 Dec 7. Epub 2018 Dec 7.
Shanghai Fengxian District Central Hospital and East China Normal University Joint Center for Translational Medicine, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.
The key signaling networks regulating bone marrow mesenchymal stem cells (BMSCs) are poorly defined. Lgr4, which belongs to the leucine-rich repeat-containing G protein-coupled receptor (LGR) family, is widely expressed in multiple tissues from early embryogenesis to adulthood. We investigated whether Lgr4 functions in BMSCs and in osteogenesis, adipogenesis, and skeletal myoblasts, using mice with a β-geo gene trap inserted into the Lgr4 gene. Read More
Eur Rev Med Pharmacol Sci 2018 Nov;22(22):7962-7968
Department of Orthopedics, ChangZheng hospital, The Second Military Medical University of China, Shanghai, China.
Objective: Metformin, a common and first-line drug for diabetes mellitus, is widely used in the world. Recently, many studies have documented that osteogenesis could be mediated by metformin. However, the specific mechanism by which metformin affects osteogenesis has not been clearly identified. Read More
Calcif Tissue Int 2018 Dec 8. Epub 2018 Dec 8.
Orthopaedic Research and Biotechnology Unit, Kids Research, The Children's Hospital at Westmead, Locked Bag 4001, Westmead, NSW, 2145, Australia.
Bone marrow transplantation (BMT) of healthy donor cells has been postulated as a strategy for treating osteogenesis imperfecta (OI) and other bone fragility disorders. The effect of engraftment by tail vein injection and/or marrow ablation by 6 Gy whole body irradiation were tested in Col1a2 (OI) mice as a model of mild-moderate OI. Dual-emission X-ray absorptiometry, microCT, and 4-point bending were used to measure bone volume (BV), bone mineral density (BMD), and biomechanical strength. Read More
Bone Res 2018 7;6:36. Epub 2018 Dec 7.
1Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA 6009 Australia.
Exosomes are a heterogeneous group of cell-derived membranous structures, which mediate crosstalk interaction between cells. Recent studies have revealed a close relationship between exosomes and bone homeostasis. It is suggested that bone cells can spontaneously secret exosomes containing proteins, lipids and nucleic acids, which then to regulate osteoclastogenesis and osteogenesis. Read More
Stem Cells Int 2018 11;2018:2406462. Epub 2018 Nov 11.
Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia.
Wharton's jelly-derived mesenchymal stem cells (WJ-MSCs) are emerging as a promising source for bone regeneration in the treatment of bone defects. Previous studies have reported the ability of WJ-MSCs to be induced into the osteogenic lineage. The purpose of this review was to systematically assess the potential of WJ-MSC differentiation into the osteogenic lineage. Read More
Bioact Mater 2019 Mar 23;4(1):17-21. Epub 2018 Nov 23.
Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China.
Bone-implant materials are important for bone repairing and orthopedics surgery, which include bone plates and bone nails. These materials need to be designed not only considering its biostability and biocompatibility, but also their by-products induced infection after therapy or long-time treatment . Thus, the development of novel implant materials is quite urgent. Read More
Biochem Biophys Rep 2019 Mar 28;17:32-37. Epub 2018 Nov 28.
Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan.
Leigh syndrome is a highly heterogeneous condition caused by pathological mutations in either nuclear or mitochondrial DNA regions encoding molecules involved in mitochondrial oxidative phosphorylation, in which many organs including the brain can be affected. Among these organs, a high incidence of poor bone health has been recognized in primary mitochondrial diseases including Leigh syndrome. However, the direct association between mitochondrial dysfunction and poor bone health has not been fully elucidated. Read More
Front Cardiovasc Med 2018 23;5:172. Epub 2018 Nov 23.
Department of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.
Previously considered a degenerative process, cardiovascular calcification is now established as an active process that is regulated in several ways by lipids, phospholipids, and lipoproteins. These compounds serve many of the same functions in vascular and valvular calcification as they do in skeletal bone calcification. Hyperlipidemia leads to accumulation of lipoproteins in the subendothelial space of cardiovascular tissues, which leads to formation of mildly oxidized phospholipids, which are known bioactive factors in vascular cell calcification. Read More
Oxid Med Cell Longev 2018 6;2018:3172480. Epub 2018 Nov 6.
Department of Traumatology, University of Tübingen, Schnarrenbergstraße 95, 72076 Tübingen, Germany.
Cigarette smoking has been identified as a major risk factor for osteoporosis decades ago. Several studies have shown a direct relationship between cigarette smoking, decreased bone mineral density, and impaired fracture healing. However, the mechanisms behind impaired fracture healing and cigarette smoking are yet to be elucidated. Read More
PLoS One 2018 7;13(12):e0208774. Epub 2018 Dec 7.
Technische Universität Dresden, Faculty of Medicine Carl Gustav Carus, Department of Cardiac Surgery, Herzzentrum Dresden, Dresden, Germany.
The development of a substance or inhibitor-based treatment strategy for the prevention of aortic valve stenosis is a challenge and a main focus of medical research in this area. One strategy may be to use the tankyrase inhibitor XAV-939, which leads to Axin stabilisation and subsequent destruction of the β-catenin complex and dephosphorylation of β-catenin. The dephosphorylated active form of β-catenin (non-phospho-β-catenin) then promotes nuclear transcription that leads to osteogenesis. Read More
Biomed Mater Eng 2018 Dec 5. Epub 2018 Dec 5.
Department of Orthopaedics surgery, Second Hospital of Lanzhou University, 82# Cuiyingmen, Lanzhou, Gansu province, 730030, P. R. China.
Background: Calcium polyphosphate (CPP) is a commonly used biomaterial in bone tissue engineering, but CPP is insufficient in osteoinduction. This study aimed to fabricate lithium doped CPP (LiCPP) scaffolds and assess their characterization, degradation, biocompatibility and osteogenesis behavior for bone tissue engineering.
Methods: The novel scaffold was characterized by XRD, FTIR and SEM. Read More
Biol Open 2018 Dec 7;7(12). Epub 2018 Dec 7.
Department of Endocrinology, The Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang 050051, Hebei Province, China
Whether insulin receptor substrate 1 (IRS-1) inhibits or promotes the osteogenic proliferation and differentiation remains controversial. Transcriptional co-activator with PDZ-binding motif (TAZ) plays a vital role in the osteogenesis of bone marrow mesenchymal stem cells (BMSCs), and strongly activates the expression of the osteogenic differentiation markers. In this study, we found that IRS-1 and TAZ followed similar increasing expression patterns at the early stage of osteogenic differentiation. Read More
Colloids Surf B Biointerfaces 2018 Nov 30;175:158-165. Epub 2018 Nov 30.
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China. Electronic address:
Magnesium (Mg) and strontium (Sr), which are essential nutrient elements in the natural bone, positively affect the osteogenic activity even in wide ranges of ion concentrations. However, it remains unknown whether magnesium-strontium phosphates [MgSr(PO)] are potential bone grafts for accelerating bone regeneration. Herein, a serial of MgSr(PO), including Mg(PO), MgSr(PO), MgSr(PO), MgSr(PO) and Sr(PO), were synthesized using a solid-state reaction approach. Read More
Cell Signal 2018 Dec 7. Epub 2018 Dec 7.
Department of Otolaryngology, Emory University, Atlanta, GA, USA. Electronic address:
During craniofacial development, cranial neural crest (CNC) cells migrate into the developing face and form bone through intramembranous ossification. Loss of JAGGED1 (JAG1) signaling in the CNC cells is associated with maxillary hypoplasia or maxillary bone deficiency (MBD) in mice and recapitulates the MBD seen in humans with Alagille syndrome. JAGGED1, a membrane-bound NOTCH ligand, is required for normal craniofacial development, and Jagged1 mutations in humans are known to cause Alagille Syndrome, which is associated with cardiac, biliary, and bone phenotypes and these children experience increased bony fractures. Read More
Mech Ageing Dev 2018 Dec 6. Epub 2018 Dec 6.
Department of Orthopedics, Augusta University, Augusta, GA, United States; Institute of Regenerative and Reparative medicine, Augusta University, Augusta, GA, United States. Electronic address:
MicroRNA's are small non-coding RNAs that regulate the expression of genes by targeting the 3' UTR's of mRNA. Studies reveal that miRNAs play a pivotal role in normal musculoskeletal function such as mesenchymal stem cell differentiation, survivability and apoptosis, osteogenesis, and chondrogenesis. Changes in normal miRNA expression have been linked to a number of pathological disease processes. Read More
Br J Oral Maxillofac Surg 2018 Dec 6. Epub 2018 Dec 6.
Dept. of Maxillofacial Surgery, Queen Victoria Hospital, East Grinstead, UK. Electronic address:
Injuries to the parotid ducts are difficult to locate, assess, and repair, and traditionally, solid metal dilators and soft plastic tubes have had only limited success. We describe the Seldinger technique with a central venous catheter, which makes repair easier. Read More
Dent Med Probl 2018 Dec 4. Epub 2018 Dec 4.
Medical University of Warsaw, Poland.
Bisphosphonates are a group of medicines used in the treatment of oncological osteoporosis, Paget disease and osteogenesis imperfecta. They significantly interfere with the regeneration processes of bone tissue and have a tendency to accumulate in the areas of increased bone remodeling, i.e. Read More
J Biomed Mater Res B Appl Biomater 2018 Dec 6. Epub 2018 Dec 6.
Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu, 41940, Republic of Korea.
The hydrophilicity of bone graft material generally used as a carrier can play an important role in regulating bone morphogenetic protein (BMP) expression at the bone graft site. The hydrophilicity, altering physicochemical properties, and enhancing biological capabilities, can be increased via surface modification through ultraviolet (UV) photofunctionalization and the effect on de novo osteogenesis could be further improved. Therefore, this study aimed to assess the effects of UV-irradiated TiO -coated hydroxyapatite (HA) in combination with rhBMP-2 on bone regeneration in rabbit calvarial defects. Read More
Tissue Eng Part A 2018 Dec 6. Epub 2018 Dec 6.
Kyungpook National University, Oral Microbiology , 2177 Dalgubeol-daero, Jung-gu , Daegu, Korea, Republic of , 41940 ;
Exosomes are membranous nanovesicles that naturally transport bio-molecules, including miRNAs, and play critical roles in intercellular communication. We found that the growth condition milieu of pre-osteoblast exosomes contains a high level of the let-7 miRNAs. After blocking exosome secretion, we found that osteogenic differentiation of pre-osteoblasts (MC3T3-E1 cells) decreased significantly whereas addition of exosomes from growth condition recovered osteogenic ability. Read More
Biomed Res Int 2018 5;2018:2174824. Epub 2018 Nov 5.
State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine of Ministry of Education (KLOBM), School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China.
Periodontal remodeling and alveolar bone resorption and formation play essential roles during orthodontic tooth movement (OTM). In the process, human periodontal ligament cells (HPDLCs) sense and respond to orthodontic forces, contributing to the alveolar bone formation. However, the underlying mechanism in this process is not fully elucidated. Read More
Int J Nanomedicine 2018 12;13:7395-7408. Epub 2018 Nov 12.
Department of Thoracic Surgery, The Second Xiangya Hospital of Central South University, Changsha 410011, People's Republic of China,
Background: Stromal cell-derived factor 1 (SDF-1) is an important chemokine for stem cell mobilization, and plays a critical role in mobilization of mesenchymal stem cells (MSCs). Bone morphogenetic protein 2 (BMP-2) plays a critical role in osteogenesis of MSCs. However, the use of SDF-1 and BMP-2 in bone tissue engineering is limited by their short half-lives and rapid degradation in vitro and in vivo. Read More
Iran J Allergy Asthma Immunol 2018 Oct 7;17(5):398-408. Epub 2018 Oct 7.
Trauma Research Center, AJA University of Medical Sciences, Tehran, Iran.
Innate immune cells play a crucial role in bone development and repair. Macrophages are the main effector cells in immune responses to implants and are indispensable for bone healing success. The heterogeneity and plasticity of macrophages make them a prime target for immune system modulation to enhance bone repair and regeneration. Read More
J Vis Exp 2018 Nov 14(141). Epub 2018 Nov 14.
Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine.
Distraction osteogenesis (DO) is a surgical procedure that involves skeletal tissue regeneration without cell transplantation. A DO model consists of the following three phases: the latency phase after osteotomy and placement of the external distractor; the distraction phase, wherein the separated bone ends are gradually and continuously distracted; and the consolidation phase. This custom-made distractor used for DO is comprised of two incomplete acrylic resin rings and an expansion screw. Read More
J Craniofac Surg 2018 Nov 30. Epub 2018 Nov 30.
Division of Plastic and Reconstructive Surgery, University of Nebraska Medical Center, Omaha, NE.
Traditional fronto-orbital advancement continues to be a useful operation for correction of craniosynostosis involving the coronal or metopic sutures. Recently, distraction osteogenesis has been used to correct a variety of cranial deformities. Studies have mostly focused on posterior vault distraction due to its simplicity and greater volume gain when compared with anterior vault distraction. Read More
J Craniofac Surg 2018 Nov 30. Epub 2018 Nov 30.
Department of Plastic, Reconstructive and Aesthetic Surgery, Tokyo Metropolitan Police Hospital.
Severe facial asymmetry in adults with hemifacial microsomia or other types of mandibular hypoplasia is challenging to treat with simultaneous maxillomandibular distraction osteogenesis using an external distractor combined with intermaxillary fixation (IMF). Using an external distractor also produces significant distress for patients for at least 8 weeks. Furthermore, mandibular-driven distraction tends to elongate the midface, with difficulty positioning of the center of the maxilla in the center of the face and horizontalization of the occlusal plane. Read More
J Craniofac Surg 2018 Nov 30. Epub 2018 Nov 30.
Department of Orthodontics, Faculty of Dentistry, Okan University, Istanbul, Turkey.
Interdental distraction osteogenesis has been introduced as a successful treatment protocol for repairing large clefts. In this article, a new method for reconstruction of the premaxilla in 2 bilateral cleft lip and palate patients is introduced. The aim was to distract the lateral segments through the curve of the dental arch, achieve complete closure of the gaps, and use the premaxilla as a bone graft. Read More
J Craniofac Surg 2018 Nov 30. Epub 2018 Nov 30.
Department of Pathology, Faculty of Medicine, University of Necmettin Erbakan, Konya, Turkey.
Introduction: Mandibular distraction osteogenesis (DO) is frequently used in the management of bone defects and craniofacial deformities, with analgesics commonly administered to relieve acute postoperative pain. This experimental animal study investigated the effects of 2 analgesics, acetaminophen and acemetacin, on bone regeneration after DO.
Materials And Methods: This study was conducted with 14 mature male New Zealand rabbits (2. Read More
ACS Appl Mater Interfaces 2018 Dec 3. Epub 2018 Dec 3.
Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, Institute for Biomedical Engineering, Science and Technology , University of Oklahoma , Norman , Oklahoma 73072 , United States.
Titanium (Ti) alloy implants can repair bone defects at load-bearing sites. However, they mechanically mismatch with the natural bone and lack customized adaption with the irregularly major-sized load-bearing bone defects, resulting in the failure of implant fixation. Mineralized collagen (MC), a building block in bone, can induce angiogenesis and osteogenesis, and 3D printing technology can be employed to prepare scaffolds with an overall shape customized to the bone defect. Read More
J Cell Biochem 2018 Dec 3. Epub 2018 Dec 3.
Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.
Background: Cleidocranial dysplasia (CCD) in humans is an autosomal-dominant skeletal dysplasia caused by heterozygous mutations of the runt-related transcription factor 2 (RUNX2) and significantly increases the risk of osteoporosis. Increasing evidence demonstrates that the dysfunction of bone marrow stromal cells from CCD patients (BMSCs-CCD) contributes to the bone deficiency, but the characteristics of BMSCs-CCD and the mechanisms that underlie their properties remain undefined.
Methods: The clinical manifestations of three CCD patients were collected and the mutations of RUNX2 were analyzed. Read More
Mol Biol Rep 2018 Dec 1. Epub 2018 Dec 1.
Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Istanbul, Turkey.
Bisphosphonate-induced osteonecrosis of the jaw (BIONJ) is a commonly encountered side effect of Bisphosphonates (BPs). Although certain aspects of BIONJ have been studied, the effects of BPs on the proliferation, differentiation, and maintenance of dental stem cells (DSC) in way that might account for development of BIONJ have not been evaluated. In the current study, Dental Pulp Stem Cells (DPSCs), Periodontal Stem Cells (PDLSCs), and human Tooth Germ Stem Cells (hTGSCs) were characterized and then each stem cell type were treated with selected BPs: Zoledronate (ZOL), Alendronate (ALE), and Risedronate (RIS). Read More
Maxillofac Plast Reconstr Surg 2018 Dec 15;40(1):32. Epub 2018 Nov 15.
1Division of Reconstructive Surgery for Oral and Maxillofacial Region, Department of Tissue Regeneration and Reconstruction, Course for Oral Life Science, Niigata University Graduate School of Medical and Dental Sciences, 2-5274, Gakkocho-Dori, Chuo-Ku, Niigata, 951-8514 Japan.
Background: The free vascularized fibula flap presents many advantages such as sufficient length of the bony segment, good vascularization, better quality of the bone, and a long vascular pedicle, but it is also associated with some disadvantages with regard to prosthetic rehabilitation because of its limited height. Improvement in bone height is necessary for ideal dental implant treatment of reconstructed mandibles.
Case Presentation: For two squamous cell carcinoma patients, mandibular bone reconstruction was performed secondarily with the peroneal flap after tumor resection. Read More
Surg Neurol Int 2018 30;9:217. Epub 2018 Oct 30.
Craniofacial Unit, Department of Pediatric Neurosurgery, Hôpital Necker-Enfants Malades, Paris, France.
Background: Expanding the posterior cranial vault has become a common procedure in the treatment of complex craniosynostosis. Several techniques are available to remodel the posterior vault. Aim of this study was to analyze the posterior vault distraction osteogenesis. Read More
J Mater Chem B 2018 Jun 29;6(24):4104-4115. Epub 2018 May 29.
Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616.
Lipoaspirates contain a readily accessible heterogeneous cell source for use in bone regeneration collectively referred to as the stromal vascular fraction (SVF). However, the osteogenic potential of SVF is inferior to other progenitor cell populations, thereby requiring alternative strategies to potentiate its effective use in cell-based therapies of bone repair. Cell-secreted extracellular matrix (ECM) is a promising substrate to guide cell phenotype or for use in biomaterial design, yet the instructional capacity of ECMs produced by various cell types is unknown. Read More
Saudi J Biol Sci 2018 Nov 7;25(7):1322-1325. Epub 2018 May 7.
Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Khalid University, Abha, Saudi Arabia.
Transverse palatal distraction is a biological process of regenerating new bone and enveloping soft tissues in the maxillary palate region. This technique is similar to Osteo-distraction (OD) procedure for bone lengthening in which gradual and controlled traction forces are applied on the osteotomy gaps to produce new bone in between the surgically separated bone segments. This review describes the different phases after osteotomy and the biological process involved during the new bone and soft tissue formation. Read More
Int J Oral Maxillofac Surg 2018 Nov 28. Epub 2018 Nov 28.
Private Practice, Istanbul, Turkey. Electronic address:
Alveolar transport distraction osteogenesis (ATDO) is an alternative treatment method to vertical alveolar distraction osteogenesis in cases of large bony defects, especially when the bone is limited in size. ATDO was performed in 10 patients with 12 defects. The mean age of the patients was 39. Read More
Int J Mol Sci 2018 Nov 29;19(12). Epub 2018 Nov 29.
Department of Oral Implantology, Osaka Dental University, 8-1, Kuzuhahanazonocho, Hirakata, Osaka 573-1121, Japan.
Cost-effective and functionalized scaffolds are in high demand for stem-cell-based regenerative medicine to treat refractory bone defects in craniofacial abnormalities and injuries. One potential strategy is to utilize pharmacological and cost-effective plant polyphenols and biocompatible proteins, such as gelatin. Nevertheless, the use of chemically modified proteins with plant polyphenols in this strategy has not been standardized. Read More
Adv Healthc Mater 2018 Dec 5:e1801138. Epub 2018 Dec 5.
Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC), EEBE, Av. Eduard Maristany 10-14, 08019, Barcelona, Spain.
Calcium phosphate (CaP) substrates are successfully used as bone grafts due to their osteogenic properties. However, the influence of the physicochemical features of CaPs in angiogenesis is frequently neglected despite it being a crucial process for bone regeneration. The present work focuses on analyzing the effects of textural parameters of biomimetic calcium deficient hydroxyapatite (CDHA) and sintered beta-tricalcium phosphate (β-TCP), such as specific surface area, surface roughness, and microstructure, on the behavior of rat endothelial progenitor cells (rEPCs) and their crosstalk with rat mesenchymal stem cells (rMSCs). Read More
J Cell Physiol 2018 Dec 4. Epub 2018 Dec 4.
Department of Nanochemistry, Faculty of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.
Tissue engineering is an interdisciplinary expertise that involves the use of nanoscaffolds for repairing, modifying, and removing tissue defects and formation of new tissues. Mesenchymal stem cells (MSCs) can differentiate into a variety of cell types, and they are attractive candidates for tissue engineering. In the current study, the electrospinning process was used for nanofiber preparation, based on a poly-l-lactic-acid (PLLA) polymer. Read More
Biomed Res Int 2018 1;2018:4025083. Epub 2018 Nov 1.
Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability and Key Laboratory of Intelligent Control and Rehabilitation Technology of the Ministry of Civil Affairs, National Research Center for Rehabilitation Technical Aids, Beijing 100176, China.
Osteogenic differentiation of cells has considerable clinical significance in bone defect treatment, and cell behavior is linked to extracellular matrix stiffness. This study aimed to determine how matrix stiffness affects cell morphology and subsequently regulates the osteogenic phenotype of osteogenesis precursor cells. Four PDMS substrates were prepared with stiffness corresponding to the elastic modulus ranging from 0. Read More
Stem Cells Int 2018 31;2018:3272098. Epub 2018 Oct 31.
Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China.
Regenerative medicine for bone tissue mainly depends on efficient recruitment of endogenous or transplanted stem cells to guide bone regeneration. Platelet-derived growth factor (PDGF) is a functional factor that has been widely used in tissue regeneration and repair. However, the short half-life of PDGF limits its efficacy, and the mechanism by which PDGF regulates stem cell-based bone regeneration still needs to be elucidated. Read More
J Stomatol Oral Maxillofac Surg 2018 Dec 1. Epub 2018 Dec 1.
MDS, Professor and Head Dept. of Oral and Maxillofacial Surgery, Kothiwal Dental College and Research Center, Moradabad, UP, India. Electronic address:
Objectives: The purpose of this study is to evaluate the role of primary osteo-distraction prior to ankylosis release in patients, diagnosed with sleep apnoea, facial asymmetry, and reduced quality of life secondary to temporomandibular joint (TMJ) ankylosis.
Methods: Ten patients in the age group of 13-40 years with TMJ ankylosis underwent primary osteo-distraction for mandibular advancement. They were evaluated pre- and post-operatively using radiographs, various questionnaires, and subjective evaluation of facial asymmetry, sleep apnoea, and quality of life (QOL). Read More
Plast Reconstr Surg 2018 Nov;142(5):1285-1293
Philadelphia, Pa. From the Division of Plastic Surgery, Children's Hospital of Philadelphia.
Background: Controversy exists regarding the treatment of mandibular hypoplasia in craniofacial microsomia patients, notably the role of mandibular distraction osteogenesis. The authors compared the need for orthognathic surgery in skeletally mature craniofacial microsomia subjects who either did (study group) or did not (control group) undergo early mandibular distraction osteogenesis.
Methods: A retrospective review was conducted of all craniofacial microsomia patients evaluated between January of 1993 and March of 2017. Read More
Bone Res 2018 27;6:34. Epub 2018 Nov 27.
1Department of Orthopedics Trauma, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
RANKL signaling is essential for osteoclastogenesis. Its role in osteoblastic differentiation and bone formation is unknown. Here we demonstrate that RANK is expressed at an early stage of bone marrow mesenchymal stem cells (BMSCs) during osteogenic differentiation in both mice and human and decreased rapidly. Read More
Iran J Med Sci 2018 Nov;43(6):633-644
Tissue Engineering Lab, Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Background: Platelet-rich plasma (PRP) and bioceramics such as hydroxyapatite (HA) and zirconium oxide (ZrO) are used to reconstruct mandibular defects. We sought to determine the synergistic effects of HA/ZrO and PRP and compare their osteogenic activity.
Methods: ZrO scaffolds were constructed by the slurry method and were then coated with HA and impregnated by PRP/heparan sulfate (HS). Read More