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Bone remodelling

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https://www.readbyqxmd.com/read/29160796/role-of-galectin-3-in-bone-cell-differentiation-bone-pathophysiology-and-vascular-osteogenesis
#1
REVIEW
Carla Iacobini, Claudia Blasetti Fantauzzi, Giuseppe Pugliese, Stefano Menini
Galectin-3 is expressed in various tissues, including the bone, where it is considered a marker of chondrogenic and osteogenic cell lineages. Galectin-3 protein was found to be increased in the differentiated chondrocytes of the metaphyseal plate cartilage, where it favors chondrocyte survival and cartilage matrix mineralization. It was also shown to be highly expressed in differentiating osteoblasts and osteoclasts, in concomitance with expression of osteogenic markers and Runt-related transcription factor 2 and with the appearance of a mature phenotype...
November 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29158000/functional-genomic-fabrics-are-remodeled-in-a-mouse-model-of-chagasic-cardiomyopathy-and-restored-following-cell-therapy
#2
Dumitru A Iacobas, Sanda Iacobas, Herbert B Tanowitz, Antonio Campos de Carvalho, David C Spray
We previously found that, in a mouse model of Chagas cardiomyopathy (CCC), 18% of the 9390 quantified unigenes were significantly regulated by Trypanosoma cruzi infection. However, treatment with bone marrow-derived mononuclear cells (MNCs) resulted in 84% transcriptomic recovery. We have applied new algorithms to reanalyze these datasets with respect to specific pathways [CCC, cardiac muscle contraction (CMC) and chemokine signaling (CCS)]. In addition to the levels of expression of individual genes we also calculated gene expression variability and coordination of expression of each gene with all others...
November 17, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/29157601/modulation-of-cognition-and-anxiety-like-behavior-by-bone-remodeling
#3
Lori Khrimian, Arnaud Obri, Gerard Karsenty
OBJECTIVE: That the bone-derived hormone osteocalcin is necessary to promote normal brain development and function, along with its recently described sufficiency in reversing cognitive manifestations of aging, raises novel questions. One of these is to assess whether bone health, which deteriorates rapidly with aging, is a significant determinant of cognition and anxiety-like behavior. METHODS: To begin addressing this question, we used mice haploinsufficient for Runx2, the master gene of osteoblast differentiation and the main regulator of Osteocalcin expression...
December 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29156519/in-vivo-assessment-of-the-osteo-protective-effects-of-eugenol-in-alveolar-bone-tissues
#4
Hatem M Abuohashish, Dina A Khairy, Maha M Abdelsalam, Ahmed Alsayyah, Mohammed M Ahmed, Salim S Al-Rejaie
Estrogen deficiency following menopausal provokes alveolar bone loss, remodeling and inflammation. Eugenol is a phenolic compound with wide dental applications and anti-inflammatory properties. In the present study, the potential protective role of eugenol against alveolar bone deformities was investigated in an ovariectomized (OVX) rodent model. Two doses of eugenol (2.5 and 5 mg/kg/d) were administered to OVX animals for 12 weeks. In Serum, markers of bone metabolism and pro-inflammatory cytokines were estimated using ELISA...
November 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156171/the-use-of-decellularized-human-placenta-in-full-thickness-wound-repair-and%C3%A2-periarticular-soft-tissue-reconstruction-an-update-on-regenerative-healing
#5
REVIEW
Stephen A Brigido, Scott C Carrington, Nicole M Protzman
Prolonged or incomplete healing of the foot and ankle can pose significant challenges. Therefore, investigators have begun searching for alternative treatment strategies. With advances in tissue engineering, decellularized human placental connective tissue matrix has been suggested as a means to achieve more rapid and complete healing for various soft tissue and bone procedures. Basic science and clinical studies have shown that decellularized human placental connective tissue matrix can support regenerative healing through cellular migration, accelerated tissue remodeling, and the establishment of functional tissue...
January 2018: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/29154266/rehabilitation-of-neglected-monteggia-fracture-dislocations-in-children
#6
Azad Yıldırım, Kemal Nas
PURPOSE: There are limited studies related to the rehabilitation of neglected Monteggia fracture-dislocations. This study reports the results of the rehabilitation of neglected Monteggia fractures and dislocations and the best treatment options available. MATERIAL AND METHODS: Thirteen children were rehabilitated between 2009 and 2012. A retrospective chart review was conducted to record the following: age, gender, anatomic region of fractures, time delay from symptom onset to fracture, Bado classification, Mayo Elbow Performance Index (MEPI) which includes pain, range of motion and daily life comfort, surgeries, length of hospitalization, location and pattern of fracture, length of follow-up and complications...
November 6, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29151224/the-potential-role-of-the-osteopontin-osteocalcin-osteoprotegerin-triad-in-the-pathogenesis-of-prediabetes-in-humans
#7
Giuseppe Daniele, Deidre Winnier, Andrea Mari, Jan Bruder, Marcel Fourcaudot, Zuo Pengou, Andrea Hansis-Diarte, Christopher Jenkinson, Devjit Tripathy, Franco Folli
AIMS: To examine the relationship between hormones involved in bone remodeling and glucose metabolism alterations in prediabetes. METHODS: Individuals (n = 43) with NGT (BMI = 31.1 ± 1.1 kg/m(2)) and individuals (n = 79) with impaired glucose regulation (IGR) (BMI = 31.9 ± 1.2 kg/m(2)) including subjects with IFG, IGT, and IFG-IGT underwent OGTT and DXA. Osteopontin (OPN), osteocalcin (OCN), osteoprotegerin (OPG), and PTH levels were measured at fasting...
November 18, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/29151102/the-effect-of-genistein-supplementation-on-vitamin-d-levels-and-bone-turnover-markers-during-the-summer-in-healthy-postmenopausal-women-role-of-genotypes-of-isoflavone-metabolism
#8
María Pérez-Alonso, Laisa-Socorro Briongos, Marta Ruiz-Mambrilla, Eladio A Velasco, Lidia Linares, Luis Cuellar, José-Manuel Olmos, Daniel De Luis, Antonio Dueñas-Laita, José-Luis Pérez-Castrillón
AIMS: The objective of this study was to determine whether vitamin D and genistein supplementation had an additive beneficial effect on levels of vitamin D and bone markers and whether this effect was mediated by genes regulating isoflavone metabolism. MATERIALS AND METHODS: We carried out a prospective study in postmenopausal women randomized to calcium and vitamin D supplementation or calcium, vitamin D, and genistein supplementation. Vitamin D, parathyroid hormone (PTH), cross-linked C-telopeptide (CTX), and procollagen 1 N-terminal (P1NP) were determined by electrochemiluminescence...
November 18, 2017: Journal of Nutrigenetics and Nutrigenomics
https://www.readbyqxmd.com/read/29150298/spontaneous-osteoclastogenesis-hypothesis-for-gender-unrelated-osteoporosis-screening-and-diagnosis
#9
F Salamanna, R Giardino, M Fini
Women are at greater risk of developing osteoporosis (OP). However, in the past few years it has become more widely recognized that OP is a significant problem also in men although OP is frequently under-diagnosed and, consequently, under treated in men. Most guidelines, screening and fracture risk evaluation methods as well as pharmacologic agents have been developed for women and then adapted to men. Bone Mineral Density (BMD) measurement by Dual X-ray Absorptiometry (DEXA) is reported as T score and the capability of DEXA to diagnose OP and predict fracture risk is still debated...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149986/effects-of-cyclosporine-tacrolimus-and-rapamycin-on-osteoblasts
#10
M Martín-Fernández, M Rubert, M Montero, C de la Piedra
PURPOSE: One factor that can contribute to severe bone loss after transplantation is the direct action of immunosuppressants on bone cells. The aim of this work was to study the effects of cyclosporine (CsA), tacrolimus (FK-506), and rapamycin (RAPA) on the release of three local factors directly implicated in bone-remodeling regulation and apoptosis of human osteoblasts: interleukin (IL)-6, osteoprotegerin, and receptor activator of nuclear factor κβ (RANKL). BASIC PROCEDURES: Human osteoblasts were obtained from five different patients who underwent orthopedic surgery...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29148597/three-dimensional-analysis-of-bone-remodeling-following-ridge-augmentation-of-compromised-extraction-sockets-in-periodontitis-patients-a-randomized-controlled-study
#11
Mario Aimetti, Valeria Manavella, Lisa Corano, Elena Ercoli, Cristina Bignardi, Federica Romano
OBJECTIVES: The aim of this study was to analyze linear and volumetric hard tissue changes in severely resorbed alveolar sockets after ridge augmentation procedure and to compare them with spontaneous healing using three-dimensional cone beam computed tomography (CBCT). MATERIAL AND METHODS: Thirty patients (mean age 53.2 ± 6.3 years) requiring tooth extraction for advanced periodontitis were randomly allocated to test and control groups. The test sites were grafted using a collagenated bovine-derived bone (DBBM-C) covered with a collagen membrane, while control sites had spontaneous healing...
November 17, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29148561/the-role-of-il-23-receptor-signaling-in-inflammation-mediated-erosive-autoimmune-arthritis-and-bone-remodeling
#12
REVIEW
Wida Razawy, Marjolein van Driel, Erik Lubberts
The IL-23/Th17 axis has been implicated in the development of autoimmune diseases, such as rheumatoid arthritis (RA) and psoriatic arthritis (PsA). RA and PsA are heterogeneous diseases with substantial burden on patients. Increasing evidence suggests that the IL-23 signaling pathway may be involved in the development of autoimmunity and erosive joint damage. IL-23 can act either directly or indirectly on bone forming osteoblasts as well as on bone resorbing osteoclasts. As IL-23 regulates the activity of cells of the bone, it is conceivable that in addition to inflammation-mediated joint erosion, IL-23 may play a role in physiological bone remodeling...
November 17, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/29146294/distinct-effects-of-interleukin-6-classic-and-trans-signaling-in-bone-fracture-healing
#13
Katja Prystaz, Kathrin Kaiser, Anna Kovtun, Melanie Haffner-Luntzer, Verena Fischer, Anna E Rapp, Astrid Liedert, Gudrun Strauss, Georg H Waetzig, Stefan Rose-John, Anita Ignatius
Bone healing is a complex process with closely linked phases of inflammation, regeneration, and remodeling. Interleukin-6 (IL-6) may crucially regulate this process; however, the underlying mechanisms are presently unclear. IL-6 signals are transmitted via the transmembrane glycoprotein 130 by two distinct mechanisms: classic signaling employing the membrane-anchored IL-6 receptor, and trans-signaling using its soluble form. Here, we investigated the hypothesis that IL-6 classic and trans-signaling have different functions during bone healing...
November 13, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29145866/calcium-containing-scaffolds-induce-bone-regeneration-by-regulating-mesenchymal-stem-cell-differentiation-and-migration
#14
Rubén Aquino-Martínez, Alcira P Angelo, Francesc Ventura Pujol
BACKGROUND: Osteoinduction and subsequent bone formation rely on efficient mesenchymal stem cell (MSC) recruitment. It is also known that migration is induced by gradients of growth factors and cytokines. Degradation of Ca(2+)-containing biomaterials mimics the bone remodeling compartment producing a localized calcium-rich osteoinductive microenvironment. The aim of our study was to determine the effect of calcium sulfate (CaSO4) on MSC migration. In addition, to evaluate the influence of CaSO4 on MSC differentiation and the potential molecular mechanisms involved...
November 16, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29142870/intracorporeal-reduction-of-condylar-fracture-using-both-pedicled-condylar-and-seperated-ramal-fragments-after-vertical-ramal-osteotomy
#15
Il-Kyu Kim, Jun-Min Jang, Hyun-Young Cho, Ji-Hoon Seo, Dong-Hwan Lee
The aim of this study is to introduce a surgical technique that can maintain blood supply to prevent condylar resorption in the extracorporeal reduction of condylar fracture. Neither the medial pterygoid muscle on the ramal bone nor the lateral pterygoid muscle on the condylar fragment was detached after vertical ramal osteotomy. Thus, reduction was performed in the intracorporeal state. Therefore, blood supply was expected to be maintained to the fragments of both the condylar and ramal bones. On postoperative radiographs, the anatomical outline of the fractured condyle was well restored, and the occlusion was stable...
October 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29142657/extraction-socket-preservation-using-porcine-derived-collagen-membrane-alone-or-associated-with-porcine-derived-bone-clinical-results-of-randomized-controlled-study
#16
Renzo Guarnieri, Luigi Stefanelli, Francesca De Angelis, Francesca Mencio, Giorgio Pompa, Stefano Di Carlo
Objectives: The aim of present randomized controlled clinical trial was to clinically evaluate hard tissue changes after extraction socket preservation procedures compared to natural spontaneous healing. Material and Methods: Thirty patients were enrolled in the present study and underwent single-tooth extraction in the premolar/molar areas. Ten sites were grafted with porcine-derived bone covered by collagen membrane, 10 covered by porcine-derived collagen membrane alone, and 10 underwent natural spontaneous healing...
July 2017: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/29141864/il-1%C3%AE-induces-pathologically-activated-osteoclasts-bearing-extremely-high-levels-of-resorbing-activity-a-possible-pathological-subpopulation-of-osteoclasts-accompanied-by-suppressed-expression-of-kindlin-3-and-talin-1
#17
Takuma Shiratori, Yukari Kyumoto-Nakamura, Akiko Kukita, Norihisa Uehara, Jingqi Zhang, Kinuko Koda, Mako Kamiya, Tamer Badawy, Erika Tomoda, Xianghe Xu, Takayoshi Yamaza, Yasuteru Urano, Kiyoshi Koyano, Toshio Kukita
As osteoclasts have the central roles in normal bone remodeling, it is ideal to regulate only the osteoclasts performing pathological bone destruction without affecting normal osteoclasts. Based on a hypothesis that pathological osteoclasts form under the pathological microenvironment of the bone tissues, we here set up optimum culture conditions to examine the entity of pathologically activated osteoclasts (PAOCs). Through searching various inflammatory cytokines and their combinations, we found the highest resorbing activity of osteoclasts when osteoclasts were formed in the presence of M-CSF, receptor activator of NF-κB ligand, and IL-1β...
November 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29138812/expression-and-regulation-of-the-erk1-2-and-p38-mapk-signaling-pathways-in-periodontal-tissue-remodeling-of-orthodontic-tooth-movement
#18
Liping Jiang, Zhen Tang
The present study aimed to investigate the expression and regulation of extracellular signal‑regulated kinase (ERK)1/2 and p38 mitogen‑activated protein kinase (MAPK) signaling pathways in periodontal tissue remodeling of orthodontic tooth movement. Sprague Dawley rats with orthodontic tooth movement were generated. After tension stress for 1, 3, 5, 7 and 14 days, the protein and mRNA expression levels of ERK1/2 and p38 in periodontal tissue were determined by western blotting and reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR), respectively...
November 10, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29137304/monocarboxylate-transporter-1-mct1-a-tool-to-stratify-acute-myeloid-leukemia-aml-patients-and-a-vehicle-to-kill-cancer-cells
#19
Filipa Lopes-Coelho, Carolina Nunes, Sofia Gouveia-Fernandes, Rita Rosas, Fernanda Silva, Paula Gameiro, Tânia Carvalho, Maria Gomes da Silva, José Cabeçadas, Sérgio Dias, Luís G Gonçalves, Jacinta Serpa
Dysregulation of glucose/lactate dynamics plays a role in cancer progression, and MCTs are key elements in metabolic remodeling. VEGF is a relevant growth factor in the maintenance of bone marrow microenvironment and it is also important in hematological diseases. Our aim was to investigate the role of VEGF in the metabolic adaptation of Acute myeloid leukemia (AML) cells by evaluating the metabolic profiles and cell features according to the AML lineage and testing lactate as a metabolic coin. Our in vitro results showed that AML promyelocytic (HL60) and monocytic (THP1) (but not erythroid- HEL) lineages are well adapted to VEGF and lactate rich environment...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136112/local-production-of-tenascin-c-acts-as-a-trigger-for-monocyte-macrophage-recruitment-that-provokes-cardiac-dysfunction
#20
Dounia Abbadi, Fanny Laroumanie, Mathilde Bizou, Joffrey Pozzo, Danièle Daviaud, Christine Delage, Denis Calise, Fréderique Gaits-Iacovoni, Marianne Dutaur, Florence Tortosa, Edith Renaud-Gabardos, Victorine Douin-Echinard, Anne-Catherine Prats, Jerome Roncalli, Angelo Parini, Nathalie Pizzinat
Aims: Tenascin-C (TNC) is an endogenous danger signal molecule strongly associated with inflammatory diseases and with poor outcome in patients with cardiomyopathies. Its function within pathological cardiac tissue during pressure overload remains poorly understood. Methods and results: We showed that TNC accumulates after 1 week of transverse aortic constriction (TAC) in the heart of 12-week-old male mice. By cross bone marrow transplantation experiments, we determined that TNC deposition relied on cardiac cells and not on haematopoietic cells...
November 10, 2017: Cardiovascular Research
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