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https://www.readbyqxmd.com/read/29684814/transcriptional-and-translational-abundance-of-bone-morphogenetic-protein-bmp-2-4-6-7-and-their-receptors-bmpr1a-1b-and-bmpr2-in-buffalo-ovarian-follicle-and-the-role-of-bmp4-and-bmp7-on-estrogen-production-and-survival-of-cultured-granulosa-cells
#1
G Rajesh, S R Mishra, A Paul, M Punetha, G M Vidyalakshmi, K Narayanan, S Bag, S K Bhure, V Singh Chouhan, V P Maurya, G Singh, Mihir Sarkar
BMPs and their receptors modulate the granulosa cell (GC) function in the follicle of domestic animals. Since little is known on BMPs in the buffalo, the present study was aimed to investigate the expression of BMP2, 4, 6, 7 and their receptors BMPR1A, BMPR1B, BMPR2 in the GC and theca cells (TC) of ovarian follicles and the role of BMP4 and BMP7 on buffalo GC. Follicles were classified into four groups based on size and E2 level in the follicular fluid as follows: (i) Group1(4-6 mm; <0.5 ng/mL) (ii) Group 2 (7-9 mm; 0...
April 16, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29682876/soybean-lecithin-mediated-nanoporous-plga-microspheres-with-highly-entrapped-and-controlled-released-bmp-2-as-a-stem-cell-platform
#2
Daixu Wei, Ruirui Qiao, Jinwei Dao, Jing Su, Chengmin Jiang, Xichang Wang, Mingyuan Gao, Jian Zhong
Injectable polymer microsphere-based stem cell delivery systems have a severe problem that they do not offer a desirable environment for stem cell adhesion, proliferation, and differentiation because it is difficult to entrap a large number of hydrophilic functional protein molecules into the core of hydrophobic polymer microspheres. In this work, soybean lecithin (SL) is applied to entrap hydrophilic bone morphogenic protein-2 (BMP-2) into nanoporous poly(lactide-co-glycolide) (PLGA)-based microspheres by a two-step method: SL/BMP-2 complexes preparation and PLGA/SL/BMP-2 microsphere preparation...
April 22, 2018: Small
https://www.readbyqxmd.com/read/29682573/antibody-mediated-osseous-regeneration-for-bone-tissue-engineering-in-canine-segmental-defects
#3
A Khojasteh, S Hosseinpour, M M Dehghan, F Mashhadiabbas, M Rezai Rad, S Ansari, S Farzad Mohajeri, H H Zadeh
Among many applications of therapeutic monoclonal antibodies (mAbs), a unique approach for regenerative medicine has entailed antibody-mediated osseous regeneration (AMOR). In an effort to identify a clinically relevant model of craniofacial defect, the present study investigated the efficacy of mAb specific for bone morphogenetic protein- (BMP-) 2 to repair canine segmental mandibular continuity defect model. Accordingly, a 15 mm unilateral segmental defect was created in mandible and fixated with a titanium plate...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29682553/maxillary-bone-regeneration-based-on-nanoreservoirs-functionalized-%C3%AE%C2%B5-polycaprolactone-biomembranes-in-a-mouse-model-of-jaw-bone-lesion
#4
Marion Strub, Xavier Van Bellinghen, Florence Fioretti, Fabien Bornert, Nadia Benkirane-Jessel, Ysia Idoux-Gillet, Sabine Kuchler-Bopp, François Clauss
Current approaches of regenerative therapies constitute strategies for bone tissue reparation and engineering, especially in the context of genetical diseases with skeletal defects. Bone regeneration using electrospun nanofibers' implant has the following objectives: bone neoformation induction with rapid healing, reduced postoperative complications, and improvement of bone tissue quality. In vivo implantation of polycaprolactone (PCL) biomembrane functionalized with BMP-2/Ibuprofen in mouse maxillary defects was followed by bone neoformation kinetics evaluation using microcomputed tomography...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29682351/comparative-analysis-of-cellular-and-growth-factor-composition-in-bone-marrow-aspirate-concentrate-and-platelet-rich-plasma
#5
Hisashi Sugaya, Tomokazu Yoshioka, Toshiki Kato, Yu Taniguchi, Hiroshi Kumagai, Kojiro Hyodo, Osamu Ohneda, Masashi Yamazaki, Hajime Mishima
The purpose of this study was to quantify the stem cell and growth factor (GF) contents in the bone marrow aspirate concentrate (BMAC) and platelet-rich plasma (PRP) prepared from whole blood using a protocol established in our laboratory. We examined 10 patients with osteonecrosis of the femoral head who were treated by autologous BMAC transplantation at our hospital between January 2015 and June 2015. We quantified CD34+ and CD31-CD45-CD90+CD105+ cells in BMAC and PRP by flow cytometry. Additionally, we measured various GFs, that is, basic fibroblast growth factor (b-FGF), platelet-derived growth factor-BB (PDGF-BB), vascular endothelial growth factor (VEGF), transforming growth factor- β 1 (TGF- β 1), and bone morphogenetic protein-2 (BMP-2) in BMAC and PRP using enzyme-linked immunosorbent assays and statistical analyses...
2018: Bone Marrow Research
https://www.readbyqxmd.com/read/29678698/the-effects-of-high-dose-parathyroid-hormone-pth-1-34-treatment-on-fusion-outcomes-in-a-rabbit-model-of-posterolateral-lumbar-spinal-fusion-alone-an-in-combination-with-bone-morphogenetic-protein-2-bmp-2-treatment
#6
Christina A Holmes, Wataru Ishida, Benjamin D Elder, Sheng-Fu Larry Lo, Yunchan Amy Chen, Edmond Kim, John Locke, Maritza Taylor, Timothy F Witham
No abstract text is available yet for this article.
April 17, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29677036/coupled-opg-fc-on-decellularized-aortic-valves-by-edc-nhs-attenuates-rat-mscs-calcification-in-vitro
#7
Qiao Zhang, Si Chen, Jiawei Shi, Fei Li, Xucong Shi, Xingjian Hu, Cheng Deng, Feng Shi, Guichun Han, Nianguo Dong
Valve calcification commonly damages natural human heart valves and tissue-engineered heart valves (TEHVs), and no ideal intervention is available in clinical practice. It is increasingly considered that osteoprotegerin (OPG) inhibits vascular calcification. We aimed to explore whether free OPG-Fc fusion protein or coupled OPG-Fc on decellularized aortic valves attenuates calcification. Calcification of rat bone marrow-derived mesenchymal stromal cells (MSCs) was induced by osteogenic differentiation media, and the effects of free OPG-Fc or OPG-Fc coupled on the decellularized porcine aortic heart valve leaflet scaffolds by coupling agents 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC)/N-hydroxysuccinimide (NHS) on calcification were observed...
April 18, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29672339/the-effects-of-episodic-alcohol-exposure-on-bmp2-signaling-during-tibia-fracture-healing
#8
Anthony Bratton, Joshua Eisenberg, Aleksandra Vuchkovska, Philip Roper, John J Callaci
OBJECTIVES: To explore how alcohol affects the BMP-2 signaling pathway, which is known to play a critical role in bone and cartilage formation during fracture healing. METHODS: A rat model was used to demonstrate the detrimental effects of alcohol exposure on tibia fracture healing. Specific components of the BMP-2 pathway were analyzed in fracture callus at days 3, 7, 14, 21 post fracture via western immunoassays and ELISA. RESULTS: Alcohol exposure prior to tibia fracture demonstrated attenuation of downstream BMP-2 signaling...
April 18, 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29667269/effects-of-bmp-2-on-the-osteogenic-differentiation-of-bone-marrow-stem-cells-in-fibrous-dysplasia
#9
Soyoun Um, Hui Young Kim, Byoung-Moo Seo
OBJECTIVES: The purpose of this study was to evaluate the effects of BMP-2 on bone-grafting procedures for treatment of fibrous dysplasia based on in vitro and in vivo experiments. SUBJECTS AND METHODS: Proliferation of stem cells was determined by colony-forming assay, CCK-8 assay, and BrdU staining. OCT4 and NANOG expression was analyzed by flow cytometry and immunocytochemistry. Osteogenic differentiation was assessed by measuring ALP activity, alizarin red S staining, and in vivo transplantation...
April 18, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29667005/the-bmp-2-mutant-l51p-a-bmp-receptor-ia-binding-deficient-inhibitor-of-noggin
#10
REVIEW
Hany Mohamed Khattab, Satoshi Kubota, Masaharu Takigawa, Takuo Kuboki, Walter Sebald
The antagonist-specific regulation in tissue engineering constitutes important attempts to achieve an improved and rapid bone regeneration by controlling the natural biological response of the natural body growth factors. L51P is molecularly engineered bone morphogentic protein-2 (BMP-2) variant with a substitution of the 51st leucine with a proline residue. L51P is deficient in BMP receptor binding, but maintains its structure and affinity for inhibitory proteins such as noggin, chordin, and gremlin. These modifications convert the BMP-2 variant L51P into a receptor-inactive inhibitor of BMP antagonists...
April 17, 2018: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29663378/tyrosine-kinase-receptor-c-ros-oncogene-1-inhibition-alleviates-aberrant-bone-formation-of-twist-1-haploinsufficient-calvarial-cells-from-saethre-chotzen-syndrome-patients
#11
Esther Camp, Peter J Anderson, Andrew C W Zannettino, Carlotta A Glackin, Stan Gronthos
Saethre-Chotzen syndrome (SCS), associated with TWIST-1 mutations, is characterized by premature fusion of cranial sutures. TWIST-1 haploinsufficiency, leads to alterations in suture mesenchyme cellular gene expression patterns, resulting in aberrant osteogenesis and craniosynostosis. We analyzed the expression of the TWIST-1 target, Tyrosine kinase receptor c-ros-oncogene 1 (C-ROS-1) in TWIST-1 haploinsufficient calvarial cells derived from SCS patients and calvaria of Twist-1del/+ mutant mice and found it to be highly expressed when compared to TWIST-1 wild-type controls...
April 16, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29658660/-effect-of-low-frequency-low-intensity-electromagnetic-fields-on-maturation-and-mineralization-of-rat-skull-osteoblasts-i-in-vitro-i
#12
Baoying Zhu, Jian Zhou, Yuhai Gao, Wengui Shi, Zhenlong Wei, Wenyuan Li, Yuanyuan Wang, Keming Chen
<b>Objective:</b> To compare the effects of 50 Hz 1.8 mT sinusoidal magnetic field (SEMF) and 50 Hz 0.6 mT pulsed electromagnetic field(PEMF) on the maturation and mineralization of rat calvaria osteoblasts. <b>Methods:</b> Primary cultured rat calvarial osteoblasts were divided into 3 groups:blank control group, SEMF group and PEMF group. The rats in SEMT and PEMT groups were treated with 50 Hz 1.8 mT SEMF or 50 Hz 0.6 mT PEMF for 90 min/d, respectively. Western blotting and Real-time RT-PCR were used to detect the protein and mRNA expressions of Collagen-1, bone morphogenetic protein 2 (BMP-2), osterix (OSX) and Runt-associated transcription factor 2(Runx-2)...
May 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/29658566/peek%C3%A2-biphasic-bioceramic-composites-promote-mandibular-defect-repair-and-upregulate-bmp%C3%A2-2-expression-in-rabbits
#13
Hedong Yu, Yongji Chen, Min Mao, Dongyan Liu, Jun Ai, Weidong Leng
The present study aimed to investigate whether bone morphogenetic protein‑2 (BMP‑2) was involved in the repair of mandibular defects using polyether‑ether‑ketone biphasic bioceramic (PEEK‑BBC) composites in rabbits. PEEK‑BBC composites with abundant and interconnected pores were prepared by calcination and characterized by scanning electron microscope. A mandibular defect model in rabbits was established using dental grinder to produce a square hole. A total of 60 rabbits were divided into four groups: Control, sham, surgery, and PEEK...
April 11, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29652784/a-prospective-randomized-multicenter-study-comparing-silicated-calcium-phosphate-versus-bmp-2-synthetic-bone-graft-in-posterolateral-instrumented-lumbar-fusion-for-degenerative-spinal-disorders
#14
Marc Coughlan, Mark Davies, Adriaan K Mostert, Dharmin Nanda, Paul C Willems, Geoffrey Rosenberg, Richard Ferch
STUDY DESIGN: A prospective, Phase IV, multicenter, randomized study. OBJECTIVE: To compare vertebral fusion success rates following posterolateral fusion ((PLF)/posterolateral intertransverse fusion (PITF)) surgery. The surgical procedure combined posterior lumbar interbody fusion (PLIF) and PLF with internal fixation over one or two levels using silicated calcium phosphate (SiCaP) or bone morphogenetic protein (BMP)-2 as graft material in patients with a degenerative disorder of the lumbar spine...
April 12, 2018: Spine
https://www.readbyqxmd.com/read/29652075/impact-of-tgf-%C3%AE-family-related-growth-factors-on-chondrogenic-differentiation-of-adipose-derived-stem-cells-isolated-from-lipoaspirates-and-infrapatellar-fat-pads-of-osteoarthritic-patients
#15
E López-Ruiz, G Jiménez, W Kwiatkowski, E Montañez, F Arrebola, E Carrillo, S Choe, J A Marchal, M Perán
The success of cell-based approaches for the treatment of cartilage defects requires an optimal autologous cell source with chondrogenic differentiation ability that maintains its differentiated properties and stability following implantation. The objective of this study was to compare the chondrogenic capacity of mesenchymal stem cells (MSCs) isolated from lipoaspirates (ASCs) and the infrapatellar fat pad (IFPSCs) of osteoarthritic patients and treated with transforming growth factor (TGF)-β family-related growth factors...
April 13, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29648890/phelligridin-d-loaded-oral-nanotube-titanium-implant-enhances-osseointegration-and-prevents-osteolysis-in-rat-mandible
#16
Ji-Eun Kim, Jyoti Shrestha Takanche, Jeong-Seok Kim, Min-Ho Lee, Jae-Gyu Jeon, Il-Song Park, Ho-Keun Yi
Poor bone quality and osteolysis are the major causes of implant failure in dentistry. Here, this study tested the effect of phelligridin D-loaded nanotubes titanium (Ti) for bone formation around the dental implants. The purpose of this study was to enhance osseointegration of phelligridin D-loaded implant into the bone for bone formation and prevention of osteolysis. Cell viability, crystal violet staining, Western blot, alizarin red S staining, alkaline phosphatase activity, tartrate-resistant acid phosphatase staining, micro-computed tromography (μ-CT), hematoxylin and eosin (H&E) and immunohistochemical staining were used in vitro and in vivo to test the biocompatibility of phelligridin D...
April 12, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29603878/bone-morphogenetic-protein-2-release-profile-modulates-bone-formation-in-phosphorylated-hydrogel
#17
Maurits G L Olthof, Diederik H R Kempen, Xifeng Liu, Mahrokh Dadsetan, Marianna A Tryfonidou, Michael J Yaszemski, Wouter J A Dhert, Lichun Lu
The optimal release profile of locally delivered BMP-2 for safe and effective clinical application is unknown. In this work, the effect of differential BMP-2 release on bone formation was investigated using a novel biomaterial oligo[(polyethylene glycol) fumarate] bis[2-(methacryloyloxy) ethyl] phosphate hydrogel (OPF-BP) containing poly(lactic-co-glycolic acid) microspheres. Three composite implants with same biomaterial chemistry and structure but different BMP-loading methods were created: BMP-2 encapsulated in microspheres (OPF-BP-Msp), BMP-2 encapsulated in microspheres and adsorbed on the phosphorylated hydrogel (OPF-BP-Cmb), and BMP-2 adsorbed on the phosphorylated hydrogel (OPF-BP-Ads)...
March 31, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29597024/design-of-hydrogels-to-stabilize-and-enhance-bone-morphogenetic-protein-activity-by-heparin-mimetics
#18
Soyon Kim, Zhong-Kai Cui, Paul Jay Kim, Lawrence Young Jung, Min Lee
Although bone morphogenetic protein-2 (BMP-2) is known to be the most potent stimulator available for bone formation, a major barrier to widespread clinical use is its inherent instability and absence of an adequate delivery system. Heparin is being widely used in controlled release systems due to its strong binding ability and protective effect for many growth factor proteins. In this work, we developed a hydrogel surface that can mimic heparin to stabilize BMP-2 and to enhance osteogenesis by introducing heparin-mimicking sulfonated molecules such as poly-vinylsulfonic acid (PVSA) or poly-4-styrenesulfonic acid (PSS), into photo-crosslinkable hydrogel...
March 26, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29594991/-neurotrophin-3-promotes-osteogenic-differentiation-of-human-dental-follicle-cells
#19
Lei Wei, Ma Yue, Ren Aishu
OBJECTIVE: This study aims to investigate the effect of neurotrophin 3 (NT-3) on the osteogenic differentiation of human dental follicle cells (hDFCs). METHODS: hDFCs were isolated and cultured in vitro. Immunocytochemical staining was used to identify the origin of hDFCs. The effects of different NT-3 concentrations on hDFCs proliferation were detected by using CCK-8 assay. The alkaline phosphatase (ALP) activities and mRNA expression levels of bone morphogenetic protein-2 (BMP-2) and osteocalcin (OCN) were determined to investigate the effects of NT-3 on hDFCs osteogenesis...
February 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29589649/bone-formation-by-heterodimers-through-non-viral-gene-delivery-of-bmp-2-6-and-bmp-2-7
#20
L D Loozen, A Vandersteen, A H Kragten, F C Öner, W J Dhert, M C Kruyt, J Alblas
Non-viral gene delivery is a safe technique to release sustained physiologic dosages of bone morphogenetic protein (BMP). Co-delivery of multiple BMPs can result in the formation of more potent BMP heterodimers. In this study, non-viral co-delivery of BMP-2/6 and BMP-2/7, as a mean to produce heterodimers, was assessed. Goat MSCs were non-virally transfected with plasmid DNA encoding BMP isoforms (pBMP) known to be relevant for osteogenesis: BMP-2, -6 or -7. As a result, BMP-2, -6 and -7 were produced and detectable for up to 14 d and their combined delivery (pBMP-2 with pBMP-6 or pBMP-7) was used to create BMP-2/6 and BM-2/7 heterodimers...
March 28, 2018: European Cells & Materials
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