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https://www.readbyqxmd.com/read/28334520/new-approach-for-vertical-bone-regeneration-using-in-situ-gelling-and-sustained-bmp-2-releasing-poly-phosphazene-hydrogel-system-on-peri-implant-site-with-critical-defect-in-a-canine-model
#1
Bo-Bae Seo, Hae-Im Chang, Hyuck Choi, Jeong-Tae Koh, Kwi-Dug Yun, Jae-Yeol Lee, Soo-Chang Song
An injectable hydrogel system with sustained bone morphogenetic protein 2 (BMP-2) release ability was developed for vertical bone regeneration at peri-implant sites and enhanced osseointegration of dental implants. In three young male beagle dogs, a pair of defects was created on both sides of the mandibular bone. Next, two implants were transplanted into each defect. In situ gelling polymer solutions with or without BMP-2 were applied to cover the implants and mandibular defects. The effects of the in situ gelling and sustained BMP-2 releasing (IGSR) hydrogel system on peri-implant bone regeneration were evaluated by radiologic examination, micro-computed tomography, and histomorphometric analysis...
March 23, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28332131/biostimulation-with-diode-laser-positively-regulates-cementoblast-functions-in-vitro
#2
Serife Buket Bozkurt, Erdogan E Hakki, Seyit Ali Kayis, Niyazi Dundar, Sema S Hakki
The aim of this study was to evaluate the effects of diode laser biostimulation on cementoblasts (OCCM.30). A total of 40 root plates were obtained from healthy third molar teeth and assigned to the following two groups: (1) control group and (2) laser-treated group. Root plates were placed into the cell culture inserts, and OCCM.30 cells were seeded onto root plates. Cells were irradiated with a low level of diode laser (power: 0.3 W in continuous wave, 60 s/cm(2)). Proliferation and mineralized tissue-associated gene's and BMP's messenger RNA (mRNA) expressions of cementoblasts were evaluated...
March 22, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28324064/bmp7-induces-uterine-receptivity-and-blastocyst-attachment
#3
Diana Monsivais, Caterina Clementi, Jia Peng, Paul T Fullerton, Renata Prunskaite-Hyyryläinen, Seppo Vainio, Martin M Matzuk
In women, the window of implantation is limited to a brief two- to three- day period characterized by optimal levels of circulating ovarian hormones and a receptive endometrium. Although the window of implantation is assumed to occur 8-10 days after ovulation in women, molecular markers of endometrial receptivity are necessary to determine optimal timing prior to embryo transfer. Previous studies showed that members of the bone morphogenetic protein (BMP) family are expressed in the uterus necessary for female fertility; however, the role of BMP7 during implantation and in late gestation is not known...
January 17, 2017: Endocrinology
https://www.readbyqxmd.com/read/28319735/different-combinations-of-growth-factors-for-the-tenogenic-differentiation-of-bone-marrow-mesenchymal-stem-cells-in-monolayer-culture-and-in-fibrin-based-three-dimensional-constructs
#4
Marta Bottagisio, Silvia Lopa, Valentina Granata, Giuseppe Talò, Chiara Bazzocchi, Matteo Moretti, Arianna Barbara Lovati
Tendon injuries are severe burdens in clinics. The poor tendon healing is related to an ineffective response of resident cells and inadequate vascularization. Thanks to the high proliferation and multi-lineage differentiation capability, bone marrow-derived mesenchymal stem cells (BMSCs) are a promising cell source to support the tendon repair. To date, the association of various growth factors to induce the in vitro tenogenic differentiation of multipotent progenitor cells is poorly investigated. This study aimed to investigate the tenogenic differentiation of rabbit BMSCs by testing the combination of bone morphogenetic proteins (BMP-12 and 14) with transforming growth factor beta (TGF-β) and vascular endothelial growth factor (VEGF) both in 2D and 3D cultures within fibrin-based constructs...
March 16, 2017: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/28318167/-changes-in-ultrastructure-and-bone-morphogenetic-protein-expression-in-reconstructed-mandibular-condylar-cartilage-under-continuous-mandibular-advancement-in-adult-rats
#5
Yang Shuai, Li Xue, Gao Jie, Cai Yizhi, Li Ronghui, Wang Mingguo
OBJECTIVE: This study investigated the reconstructed mandibular condylar cartilage and the ultrastructural variations in mandibular condylar cartilage in adult rats as a result of mandibular advancement. METHODS: Thirty 9-week-old male Sprague-Dawley rats were randomly divided into experimental and control groups. Rats in the experimental group were subjected to mandibular advancement. Rats were sacrificed on days 3, 7, 14, 21, 30. Sections were cut from condyles, and bone morphogenetic protein-2 (BMP-2) expression in condylar cartilage was examined through immunohistochemical analysis...
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28303752/bone-morphogenetic-proteins-and-dickkopf-1-in-ankylosing-spondylitis
#6
H-T Liao, Y-F Lin, C-Y Tsai, T-C Chou
OBJECTIVES: To determine bone morphogenetic proteins (BMPs) and Dickkopf homologue-1 (Dkk-1) levels in ankylosing spondylitis (AS). METHOD: Serum BMPs and Dkk-1 were measured in 72 AS patients and 30 healthy controls. For AS patients, we recorded the demographic data, disease activity, functional index, and global assessment with questionnaires, and image changes with roentgenography. We also measured human leucocyte antigen-B27 and systemic inflammatory reactants...
March 17, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28276147/implant-guided-supracrestal-alveolar-bone-growth-using-scaffolds-bmp-2-and-novel-scaffold-retaining-device
#7
Bo Wen, David Shafer, Peter Schleier, David Pendrys, Liisa Kuhn, Martin Freilich
OBJECTIVE: To evaluate the efficacy of various scaffold systems and a Ti scaffold-retaining device with and without non-glycosylated rhBMP-2 (BMP-2) for increasing the vertical alveolar bone growth in the intra-oral mini-pig model. METHODS: Forty-eight Straumann Bone Level implants with hydrophilic (SLActive) surfaces were partially embedded in mandibles of 12 adult mini-pigs with the shoulder of the implant located 3 mm above the bone crest. Twenty-four implants were placed in conjunction with BMP-2 (50 μg) incorporated within resorbable scaffolds...
March 9, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28275783/-effects-of-strontium-ranelate-on-the-expression-of-bmp-2-in-the-mid-palatal-suture-of-rats-during-rapid-maxillary-expansion
#8
Chao Xu, Xu-Xia Wang, Ying-Zi Wang, Pan-Pan Yang, Shu-Ya Zhao, Jun Zhang
PURPOSE: To investigate the effects of strontium ranelate on the expression of BMP-2 during rapid maxillary expansion. METHODS: Thirty-six male 6-week- old male Wistar rats were selected. They were randomly divided into 3 groups. Group A was designed as a control group. An expanded application producing 100 g force was fixed between the first and the second molar on both sides of the rats in group B and group C. 600 mg/kg strontium ranelate was given to the rats in group C daily via an orogastric route, while the equal normal saline was given to the rats in group B...
December 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28262033/fatty-acid-composition-and-anticancer-activity-in-colon-carcinoma-cell-lines-of-prunus-dulcis-seed-oil
#9
Filiz Mericli, Eda Becer, Hilal Kabadayı, Azmi Hanoglu, Duygu Yigit Hanoglu, Dudu Ozkum Yavuz, Temel Ozek, Seda Vatansever
CONTEXT: Almond oil is used in traditional and complementary therapies for its numerous health benefits due to high unsaturated fatty acids content. OBJECTIVES: This study investigated the composition and in vitro anticancer activity of almond oil from Northern Cyprus and compared with almond oil from Turkey. MATERIALS AND METHODS: Almond oil from Northern Cyprus was obtained by supercritical CO2 extraction and analyzed by GC-MS. Almond oil of Turkey was provided from Turkish pharmacies...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28260001/icaritin-a-novel-plant-derived-osteoinductive-agent-enhances-the-osteogenic-differentiation-of-human-bone-marrow-and-human-adipose-tissue-derived-mesenchymal-stem-cells
#10
Tao Wu, Tao Shu, Le Kang, Jinhui Wu, Jianzhou Xing, Zhiqin Lu, Shuxiang Chen, Jun Lv
For the treatment of diseases affecting bones using bone regenerative medicine, there is an urgent need to develop safe, inexpensive drugs that can strongly induce bone formation. In the present study, we systematically investigated the effects of icaritin, a metabolic product of icariin, on the osteogenic differentiation of human bone marrow‑derived mesenchymal stem cells (hBMSCs) and human adipose tissue‑derived stem cells (hADSCs) in vitro. After treatment with icaritin at concentrations of 10‑8-10‑5 M, hBMSCs and hADSCs were examined for alkaline phosphatase activity, osteocalcin (OC) secretion, matrix mineralization and expression levels of bone‑related mRNA and proteins...
February 24, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28244247/regulatory-effects-of-bone-morphogenetic-protein-4-on-tumour-necrosis-factor-%C3%AE-suppressed-runx2-and-osteoprotegerin-expression-in-cementoblasts
#11
Yunlong Wang, Hong He, Zhengguo Cao, Yi Fang, Mingyuan Du, Zhijian Liu
OBJECTIVES: Root resorption is a common phenomenon presented in periodontitis and orthodontic treatment, both of which are accompanied by an elevated TNF-α expression level in the periodontal tissues. Previously, we proved that TNF-α showed an inhibitory effect on cementoblast differentiation, mineralization and proliferation. However, the effect of TNF-α on Runx2 and osteoprotegerin (OPG) expression remains undetermined. This study aimed to identify the influence of TNF-α on Runx2 and OPG expression in cementoblasts and to test whether BMP-2,-4,-6,-7 would affect TNF-α-regulated Runx2 and OPG...
February 28, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28236164/evaluation-of-the-effects-of-the-combination-of-autologous-mesenchymal-stem-cells-and-platelet-rich-plasma-on-structural-bone-allograft-healing
#12
Chang-Goo Park, Min Wook Joo, Jinyoung Jeong, Yong-Koo Kang, Da-Reum Lee
In this study, we evaluated the efficacy of the combination of autologous mesenchymal stem cells (MSCs) and platelet-rich plasma (PRP) for enhancing structural allogenic bone graft healing in rabbits. For these experiments segmental bone defects (1.5-2 cm) were generated on femoral diaphysis of New Zealand white rabbits and reconstructed via structural allogenic bone grafting and additional intramedullary nail fixation. The structural allografts were subsequently wrapped with Gelfoam containing autologous MSCs and PRP, or PRP alone (control)...
February 24, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28229387/the-effects-of-cerium-valence-states-at-cerium-oxide-coatings-on-the-responses-of-bone-mesenchymal-stem-cells-and-macrophages
#13
Mingyu You, Kai Li, Youtao Xie, Liping Huang, Xuebin Zheng
Ideal orthopedic coatings should trigger good osteogenic response and limited inflammatory response. The cerium valence states in ceria are associated with their anti-oxidative activity and anti-inflammatory property. In the study, we prepared two kinds of plasma sprayed CeO2 coatings with different Ce(4+) concentrations to investigate the effects of Ce valence states on the response of bone mesenchymal stem cells (BMSCs) and macrophage RAW264.7. Both the coatings (CeO2-A and CeO2-B) were characterized via XRD, SEM, and X-ray photoelectron spectroscopy...
February 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28214472/bmp-12-activates-tenogenic-pathway-in-human-adipose-stem-cells-and-affects-their-immunomodulatory-and-secretory-properties
#14
Weronika Zarychta-Wiśniewska, Anna Burdzinska, Agnieszka Kulesza, Kamila Gala, Beata Kaleta, Katarzyna Zielniok, Katarzyna Siennicka, Marek Sabat, Leszek Paczek
BACKGROUND: Cell-based therapy is a treatment method in tendon injuries. Bone morphogenic protein 12 (BMP-12) possesses tenogenic activity and was proposed as a differentiating factor for stem cells directed to transplantation. However, BMPs belong to pleiotropic TGF-β superfamily and have diverse effect on cells. Therefore, the aim of this study was to determine if BMP-12 induces tenogenic differentiation of human adipose stem cells (hASCs) and how it affects other features of this population...
February 18, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28208104/low-temperature-thermal-pre-treatment-of-municipal-wastewater-sludge-process-optimization-and-effects-on-solubilization-and-anaerobic-degradation
#15
Laleh Nazari, Zhongshun Yuan, Domenico Santoro, Siva Sarathy, Dang Ho, Damien Batstone, Chunbao Charles Xu, Madhumita B Ray
The present study examines the relationship between the degree of solubilization and biodegradability of wastewater sludge in anaerobic digestion as a result of low-temperature thermal pre-treatment. The main effect of thermal pre-treatment is the disintegration of cell membranes and thus solubilization of organic compounds. There is an established correlation between chemical oxygen demand (COD) solubilization and temperature of thermal pre-treatment, but results of thermal pre-treatment in terms of biodegradability are not well understood...
April 15, 2017: Water Research
https://www.readbyqxmd.com/read/28202997/-a-novel-tissue-engineered-bone-constructed-by-using-human-adipose-derived-stem-cells-and-biomimetic-calcium-phosphate-scaffold-coprecipitated-with-bone-morphogenetic-protein-2
#16
W R Jiang, X Zhang, Y S Liu, G Wu, Y J Ge, Y S Zhou
OBJECTIVE: To construct a novel biomimetic calcium phosphate (BioCaP) scaffold loaded with bone morphogenetic protein-2 (BMP-2), and to investigate its role in the osteogenesis of human adipose-derived stem cells (hASCs) in vitro and in vivo. METHODS: The BioCaP scaffold coprecipitated with BMP-2 (BMP-2-BioCaP) was constructed in this study. Field emission scanning electron microscopy (SEM) was used to analyze the morphology of the surfaces. The release kinetics was measured to evaluate the slow-release characteristics in vitro...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28202676/harnessing-the-bmp-signaling-pathway-to-control-the-formation-of-cancer-stem-cells-by-effects-on-epithelial-to-mesenchymal-transition
#17
REVIEW
Ashish Bosukonda, William D Carlson
Cancer stem cells (CSCs) persist in tumors as a distinct population and may be causative in metastasis and relapse. CSC-rich tumors are associated with higher rates of metastasis and poor patient prognosis. Targeting CSCs therapeutically is challenging, since they seem to be resistant to standard chemotherapy. We have shown that a novel peptide agonist of bone morphogenetic protein (BMP) signaling, P123, is capable of inhibiting the growth of primary tumor cells by interacting with type I receptors selectively [activin receptor-like kinase 2 (ALK2) and ALK3, but not ALK6] and type II BMP receptors, activating SMAD 1/5/8 signaling and controlling the cell cycle pathway...
February 8, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28202082/bone-morphogenetic-proteins-and-myostatin-pathways-key-mediator-of-human-sarcopenia
#18
Manuel Scimeca, Eleonora Piccirilli, Francesca Mastrangeli, Cecilia Rao, Maurizio Feola, Augusto Orlandi, Elena Gasbarra, Elena Bonanno, Umberto Tarantino
BACKGROUND: Sarcopenia, osteoporosis and osteoarthritis are the most frequent musculoskeletal disorders affecting older people. The main aim of this study was to test the hypothesis that the balance between BMPs and myostatin pathways regulates the age-related muscle degeneration in OP and OA patients. To this end, we investigated the relationship among the expression of BMP-2/4-7, myostatin and phosphorylated Smads1-5-8 and the muscle quality, evaluated in term of fibers atrophy and satellite cells activity...
February 15, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28198109/progenitors-in-peripheral-nerves-launch-heterotopic-ossification
#19
Elizabeth A Olmsted-Davis, Elizabeth A Salisbury, Diana Hoang, Eleanor L Davis, ZaWaunyka Lazard, Corinne Sonnet, Thomas A Davis, Jonathan A Forsberg, Alan R Davis
Studies presented here, using a murine model of bone morphogenetic protein type 2 (BMP2)-induced heterotopic ossification (HO) show that the protein initiates HO by signaling through progenitors in the endoneurium of peripheral nerves. In the mouse, these cells were identified in the endoneurium one day after BMP2 induction using antibody against phosphoSMAD (PS) 1, 5, and 8. Studies conducted in a tracking mouse that contains a tamoxifen-regulated Wnt1-Cre recombinase crossed with a td Tomato red (TR) reporter (Wnt1(CreErt) :Ai9Tm) confirmed their neural origin...
February 15, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28197731/comparison-of-the-effects-of-recombinant-human-bone-morphogenetic-protein-2-and-9-on-bone-formation-in-rat-calvarial-critical-size-defects
#20
Toshiaki Nakamura, Yoshinori Shirakata, Yukiya Shinohara, Richard J Miron, Kozue Hasegawa-Nakamura, Masako Fujioka-Kobayashi, Kazuyuki Noguchi
OBJECTIVES: Among bone morphogenetic protein (BMP) family members, BMP-2 and BMP-9 have demonstrated potent osteoinductive potential. However, in vivo differences in their potential for bone regeneration remain unclear. The present study aimed to compare the effects of recombinant human (rh) BMP-2 and rhBMP-9 on bone formation in rat calvarial critical-size defects (CSD). MATERIALS AND METHODS: Twenty-eight Wistar rats surgically received two calvarial defects bilaterally in each parietal bone...
February 14, 2017: Clinical Oral Investigations
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