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bone morphogenetic protein 6

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https://www.readbyqxmd.com/read/29150957/randomized-controlled-clinical-two-center-study-using-xenogeneic-block-grafts-loaded-with-recombinant-human-bone-morphogenetic-protein-2-or-autogenous-bone-blocks-for-lateral-ridge-augmentation
#1
Daniel S Thoma, Michael Payer, Norbert Jakse, Stefan P Bienz, Jürg Hüsler, Patrick R Schmidlin, Ui-Won Jung, Christoph H F Hämmerle, Ronald E Jung
OBJECTIVES: to test whether or not the use of a xenogeneic block loaded with recombinant human bone morphogenetic protein-2 (rhBMP-2) results in different bone quantity and quality compared to an autogenous bone block. MATERIALS AND METHODS: 24 patients with insufficient bone volume for implant placement were randomly assigned to two treatment modalities: a xenogeneic bone block loaded with rhBMP-2 (test) or an autogenous bone block (control). The horizontal ridge width was evaluated prior to augmentation, after augmentation and at 4 months...
November 18, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29140389/influence-of-rhbmp-2-on-guided-bone-regeneration-for-placement-and-functional-loading-of-dental-implants-a-radiographic-and-histologic-study-in-dogs
#2
Heithem Ben Amara, Jung-Won Lee, Jung-Ju Kim, Yun-Mi Kang, Eun-Jung Kang, Ki-Tae Koo
PURPOSE: Evidence on the outcomes of functional loading placed in recombinant human bone morphogenetic protein 2 (rhBMP-2)/acellular collagen sponge (ACS)-induced bone is lacking. The aim of this study was to verify whether guided bone regeneration (GBR) with rhBMP-2/ACS enhances regeneration of missing bone and osseointegration of dental implants subject to functional loading. MATERIALS AND METHODS: Two bilateral standardized large saddle-type defects (≈10 × 10 × 6 mm) were surgically created in each mandible of seven beagle dogs 2 months after tooth extraction...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29130990/increased-bone-morphogenetic-protein-signaling-in-the-cutaneous-vasculature-of-patients-with-calciphylaxis
#3
Sagar U Nigwekar, Pawina Jiramongkolchai, Florian Wunderer, Emily Bloch, Rika Ichinose, Rosalynn M Nazarian, Ravi I Thadhani, Rajeev Malhotra, Donald B Bloch
BACKGROUND: The objective of this study was to investigate the role of bone morphogenetic protein (BMP) signal transduction in the pathogenesis of calciphylaxis. METHODS: Skin biopsy specimens were obtained from 18 patients with, and 12 patients without, calciphylaxis. Tissue sections were stained with antibodies directed against BMP effector proteins phosphorylated-SMAD (p-SMAD) 1/5/9, inhibitor of DNA 1 (Id1), inhibitor of DNA 3 (Id3), and Runx2. The intensity of staining was scored semi-quantitatively as strong versus weak or absent...
November 9, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/29129645/incretins-modulate-progesterone-biosynthesis-by-regulating-bone-morphogenetic-protein-activity-in-rat-granulosa-cells
#4
Yuki Nishiyama, Toru Hasegawa, Shiho Fujita, Nahoko Iwata, Satoko Nagao, Takeshi Hosoya, Kenichi Inagaki, Jun Wada, Fumio Otsuka
The effects of incretins on ovarian steroidogenesis have not been clarified. In this study, we investigated the effects of incretins, including GIP and GLP-1, on ovarian steroidogenesis using rat primary granulosa cells. Treatment with incretins significantly suppressed progesterone synthesis in the presence of FSH, and the effect of GIP was more potent than that of GLP-1. In contrast, incretins had no significant effect on estrogen synthesis by rat granulosa cells. In accordance with the effects of incretins on steroidogenesis, GIP and GLP-1 suppressed the expression of progesterogenic factors and enzymes, including StAR, P450scc, 3βHSD, but not P450arom, and cellular cAMP synthesis induced by FSH...
November 9, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29126771/bmp-2-plasmid-dna-loaded-chitosan-films-a-new-strategy-for-bone-engineering
#5
Juan Li, Jun Lin, Wenke Yu, Xiaojia Song, Qiaoling Hu, Jing-Hong Xu, Huiming Wang, Christian Mehl
OBJECTIVES: Bone defects are common in every area of medicine and remain a clinical challenge. Tissue engineering has led to promising new strategies in accelerating bone repair. Bone morphogenetic proteins (BMPs) play crucial roles in bone regeneration, but are required in supra-physiological doses, which are expensive and produce severe side effects. METHODS: To address these issues, we prepared BMP-2 plasmid DNA-loaded chitosan films, and examined their effects on mouse osteoblast-like MC3T3-E1 cell morphology, proliferation, and runt-related transcription factor 2 (RUNX2) expression...
October 14, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29117045/bone-augmentation-using-allogeneic-bone-blocks-with-recombinant-bone-morphogenetic-protein-2
#6
Craig M Misch
PURPOSE: Because of limitations of the absorbable collagen sponge (ACS), recombinant bone morphogenetic protein (rhBMP-2) requires a scaffolding device for ridge augmentation. MATERIALS AND METHODS: Twenty-one patients were treated with 37 allogeneic block grafts and rhBMP-2/ACS. Cone-beam computed tomography (CBCT) was used to measure the ridge at 2 points preoperatively, postoperatively, and after graft healing. Dental implants were placed after 6 months of healing...
November 6, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/29115497/studying-hepcidin-and-related-pathways-in-osteoblasts-using-a-mouse-model-with-insulin-receptor-substrate-1%C3%A2-loss-of-function
#7
Jia Liu, Ling Qian, Linna Guo, Yunzhi Feng
Hepcidin is one of the most important proteins in iron metabolism. In the present study, its role in iron metabolism and the associated signaling pathways involved was investigated in a mouse model with insulin receptor substrate 1‑loss of function (IRS‑/‑), and osteoblasts in the iron overload condition. Protein expression levels of hepcidin, interleukin 6 (IL‑6), bone morphogenetic protein receptor 1α and ferritin demonstrated a significant increase in the liver of the IRS‑/‑ mice compared with the IRS+/‑ and IRS+/+ mice...
October 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29112826/immunohistochemical-analysis-on-cortex-to-cortex-healing-after-mandibular-vertical-ramus-osteotomy-a-preliminary-study
#8
Hwi-Dong Jung, Sang Yoon Kim, Han-Sung Jung, Hyung-Sik Park, Young-Soo Jung
PURPOSE: The present study analyzed the expression of specific cytokines in the transforming growth factor (TGF)-β superfamily postoperatively after mandibular vertical ramus osteotomy (VRO). MATERIALS AND METHODS: Four beagle dogs were enrolled and euthanized at 1, 2, 4, and 8 weeks postoperatively for immunohistochemical analysis using 6 specific antibodies (bone morphogenetic protein [BMP]-2/4, BMP-7, TGF-β2, TGF-β3, matrix metalloproteinase-3, and vascular endothelial growth factor [VEGF])...
October 13, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29089076/-screening-of-key-molecules-of-hab18g-cd147-signal-transduction-pathway-in-human-hepatoma-cells
#9
Hongwei Zhou, Yibing Yao, Yaojie Liang, Zhihong Wang, Xiaoyan Zhou, Weiping Guo, Xiangmin Yang, Jianli Jiang, Junzhong Sun, Zhinan Chen
Objective To screen the differentially expressed key molecules of HAb18G/CD147 signal transduction pathway in human hepatoma cells. Methods The total RNA was extracted from SMMC-7721 and T7721 cells, which were stably transfected and overexpressed HAb18G/CD147, and then detected by signal transduction-related microarray to identify differentially expressed key molecules. Results The microarray data indicated that there were 13 differentially expressed genes between T7721 and SMMC-7721 cells. In T7721 cell line which overexpressed HAb18G/CD147, the down-regulated genes included bone morphogenetic protein-2 (BMP-2), BMP-5, endothelin-1 (ET-1), Wnt1-induced signaling proteins-2/CCN5 (WISP-2), cysteine-rich 61/CCN1 (Cyr61), prostate stem cell antigen (PSCA), and the up-regulated genes included interleukin-10 receptor α (IL-10Rα), IL-6, IL-8, CXCL2, mitochondrial superoxide dismutase 2 (SOD2), B factor and βig-h3...
September 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/29077160/effect-of-pulmonary-surfactant-combined-with-mechanical-ventilation-on-oxygenation-functions-and-expressions-of-serum-transforming-growth-factor-beta1-tgf-%C3%AE-1-and-bone-morphogenetic-protein-7-bmp-7-of-neonatal-respiratory-distress-syndrome
#10
L-P Wang, Q-H Mao, L Yang
OBJECTIVE: To investigate and discuss the effect of early treatment with pulmonary surfactant (PS) on oxygenation functions in neonates with acute respiratory distress syndrome (ARDS), to understand the expression trend of serum transforming growth factor-beta 1 (TGF-β1) and bone morphogenetic protein 7 (BMP-7) in children with neonatal respiratory distress syndrome (NRDS), and to provide help for early prevention and treatment of NRDS. PATIENTS AND METHODS: All the children were treated with mechanical ventilation; among them, 25 NRDS children who were given PS within 12 h after birth were selected as PS group, and 25 NRDS children who were never given PS were selected as conventional mechanical ventilation (CMV) group...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29071421/effect-of-drug-loaded-tio2-nanotube-arrays-on-osseointegration-in-an-orthodontic-miniscrew-an-in-vivo-pilot-study
#11
Insan Jang, Dong-Soon Choi, Jae-Kwan Lee, Wan-Tae Kim, Bong-Kuen Cha, Won-Youl Choi
Osseointegration was evaluated for the surface of miniscrews with TiO2 nanotube arrays containing drugs in this in-vivo study. The diameter and length of the TiO2 nanotube arrays were about 70 nm and 5 μm, respectively. Recombinant human bone morphogenetic protein-2 (rhBMP-2) or ibuprofen was loaded in the TiO2 nanotube arrays with 12 miniscrews. The 12 drug-loaded miniscrews, 6 miniscrews with no drug-loaded TiO2 nanotube arrays and 6 conventional miniscrews, were placed on the tibias of New Zealand white rabbits...
October 25, 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/29067460/stra6-as-a-possible-candidate-gene-for-pathogenesis-of-osteoporosis-from-rna%C3%A2-seq-analysis-of-human-mesenchymal-stem-cells
#12
Insun Song, Yong Jun Choi, Yilan Jin, Jung-Woo Kim, Jeong-Tae Koh, Hyung Min Ji, Seon-Yong Jeong, Ye-Yeon Won, Won Kim, Yoon-Sok Chung
To identify novel candidate genes associated with osteoporosis, RNA‑sequence analysis of human mesenchymal stem cells (hMSCs) from patients with osteoporosis (G3) and osteopenia (G2), and healthy controls (G1) was performed. Differentially expressed genes (DEGs) from among the three groups were identified. DEGs were separated into nine groups according to their gene expression patterns: UU (up and up), UF (up and flat), UD (up and down), FU (flat and up), FF (flat and flat), FD (flat and down), DU (down and up), DF (down and flat), and DD (down and down)...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29045937/adenovirus-mediated-expression-of-bmp-2-and-bfgf-in-bone-marrow-mesenchymal-stem-cells-combined-with-demineralized-bone-matrix-for-repair-of-femoral-head-osteonecrosis-in-beagle-dogs
#13
Wu-Xun Peng, Lei Wang
BACKGROUND: This study investigated the effect of using adenovirus-mediated expression of bone morphogenetic protein 2 (Ad-BMP-2) and basic fibroblast growth factor (bFGF) in bone marrow mesenchymal stem cells (BMSCs) in combination with a demineralized bone matrix (DBM) to repair osteonecrosis of the femoral head (ONFH) in Beagle dogs. METHODS: A total of 30 Beagle dogs were selected for the isolation of BMSCs, which were cultured and transfected with the recombinant adenovirus vector Ad-BMP2-bFGF-GFP (carrying BMP-2 and bFGF) or a control adenovirus plasmid (encoding green fluorescent protein (Ad-GFP))...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29040148/long-term-effects-of-bone-morphogenetic-protein-2-loaded-calcium-phosphate-on-maxillary-sinus-lift-surgery-for-delayed-and-simultaneous-dental-implantation
#14
Yuefeng Ding, Xuejuan Wang
Maxillary sinus lift surgery (MSLS) is considered to be a useful treatment method for patients with atrophic alveolar bone. Choosing a suitable surgical procedure to simultaneously decrease graft absorption and obtain long-term survival of dental implants is still a challenge. In this study, 20 patients received MSLS with graft of bone morphogenetic protein 2 (BMP2)-loaded calcium phosphate. Dental implants were placed simultaneously in 10 patients receiving MSLS (1-stage group), and in 10 patients receiving dental implants with a 3 to 6 months delay (2-stage group)...
October 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29031993/the-gdf5-mutant-bb-1-enhances-the-bone-formation-induced-by-an-injectable-plga-fiber-reinforced-brushite-forming-cement-in-a-sheep-defect-model-of-lumbar-osteopenia
#15
Francesca Gunnella, Elke Kunisch, Stefan Maenz, Victoria Horbert, Long Xin, Joerg Mika, Juliane Borowski, Sabine Bischoff, Harald Schubert, Andre Sachse, Bernhard Illerhaus, Jens Günster, Jörg Bossert, Klaus D Jandt, Frank Plöger, Raimund W Kinne, Olaf Brinkmann, Matthias Bungartz
BACKGROUND CONTEXT: Targeted delivery of osteoinductive bone morphogenetic proteins (BMPs; e.g., GDF5) in bioresorbable calcium phosphate cement (CPC), potentially suitable for vertebroplasty/kyphoplasty of osteoporotic vertebral fractures, may be required to counteract augmented local bone catabolism and support complete bone regeneration. The biologically optimized GDF5 mutant BB-1 may represent an attractive drug candidate for this purpose. PURPOSE: The aim of the current study was to test an injectable, poly (l-lactide-co-glycolide) acid (PLGA)-fiber reinforced, brushite-forming cement (CPC) containing low-dose BB-1 in a sheep lumbar osteopenia model...
October 12, 2017: Spine Journal: Official Journal of the North American Spine Society
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
#16
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/28986986/depletion-of-mast-cells-and-macrophages-impairs-heterotopic-ossification-in-an-acvr1-r206h-mouse-model-of-fibrodysplasia-ossificans-progressiva
#17
Michael R Convente, Salin A Chakkalakal, EnJun Yang, Robert J Caron, Deyu Zhang, Taku Kambayashi, Frederick S Kaplan, Eileen M Shore
Heterotopic ossification (HO) is a clinical condition that often reduces mobility and diminishes quality of life for affected individuals. The most severe form of progressive HO occurs in those with fibrodysplasia ossificans progressiva (FOP; OMIM #135100), a genetic disorder caused by a recurrent heterozygous gain-of-function mutation (R206H) in the bone morphogenetic protein (BMP) type I receptor ACVR1/ALK2. In individuals with FOP, episodes of HO frequently follow injury. The first sign of active disease is commonly an inflammatory "flare-up" that precedes connective tissue degradation, progenitor cell recruitment, and endochondral HO...
October 7, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28973290/spinal-fusion-for-pediatric-spondylolisthesis-national-trends-complications-and-short-term-outcomes
#18
Kavelin Rumalla, Chester K Yarbrough, Andrew J Pugely, Ian G Dorward
BACKGROUND: Current surgical management guidelines for pediatric spondylolisthesis (PS) are reliant on data from single-center cohorts. OBJECTIVE: To analyze national trends and predictors of short-term outcomes in spinal fusion surgery for PS by performing a retrospective cross-sectional analysis of the Kids' Inpatient Database (KID). METHODS: The KID (sampled every 3 yr) was queried from 2003 to 2012 to identify all cases (age 5-17) of spinal fusion for PS (n = 2646)...
July 7, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28953728/three-dimensional-cone-beam-computed-tomography-volumetric-outcomes-of-rhbmp-2-demineralized-bone-matrix-versus-iliac-crest-bone-graft-for-alveolar-cleft-reconstruction
#19
Fan Liang, Stephen L-K Yen, Thomas Imahiyerobo, Luke Sanborn, Leia Yen, Daniel Yen, Sheila Nazarian, Breanna Jedrzejewski, Mark Urata, Jeffrey Hammoudeh
BACKGROUND: Recent studies indicate that recombinant human bone morphogenetic protein-2 (rhBMP-2) in a demineralized bone matrix scaffold is a comparable alternative to iliac bone autograft in the setting of secondary alveolar cleft repair. Postreconstruction occlusal radiographs demonstrate improved bone stock when rhBMP-2/demineralized bone matrix (DBM) scaffold is used but lack the capacity to evaluate bone growth in three dimensions. This study uses cone beam computed tomography to provide the first clinical evaluation of volumetric and density comparisons between these two treatment modalities...
October 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28949253/application-of-a-demineralized-cortical-bone-matrix-and-bone-marrow-derived-mesenchymal-stem-cells-in-a-model-of-chronic-rotator-cuff-degeneration
#20
Tanujan Thangarajah, Anita Sanghani-Kerai, Frederick Henshaw, Simon M Lambert, Catherine J Pendegrass, Gordon W Blunn
BACKGROUND: The success of rotator cuff repair is primarily dependent on tendon-bone healing. Failure is common because weak scar tissue replaces the native enthesis, rendering it prone to reruptures. A demineralized bone matrix (DBM) consists of a network of collagen fibers that provide a sustained release of growth factors such as bone morphogenetic proteins. Previous studies have demonstrated that it can regenerate a fibrocartilaginous enthesis. HYPOTHESIS: The use of a DBM and mesenchymal stem cells (MSCs) at the healing enthesis will result in a higher bone mineral density at the tendon insertion and will enhance the regeneration of a morphologically superior enthesis when compared with an acellular human dermal matrix...
September 1, 2017: American Journal of Sports Medicine
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