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https://www.readbyqxmd.com/read/28214207/microrna-155-targets-map3k10-and-regulates-osteosarcoma-cell-growth
#1
Chuangjian Wang, Xiaobo Zhang, Chunlin Zhang, Fuying Zhai, Ying Li, Zongqiang Huang
Osteosarcoma is the most common type of bone cancer prevalent in young adults. Recent studies suggested that aberrant microRNA expression plays an essential role in osteosarcoma pathogenesis. In this study, we found miR-155 up-regulation in different osteosarcoma cell lines U2OS, Saos-2 and MG-63. Through bioinformatic prediction and analysis, we identified its target MAP3K10 that involved in cell proliferation and apoptosis. This work demonstrates novel interaction between microRNA, intercellular MAPK signaling and apoptosis in osteosarcoma, which will provide targets for therapeutic development...
February 1, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28214202/elevated-expression-of-microrna-19a-predicts-a-poor-prognosis-in-patients-with-osteosarcoma
#2
Pingzhou Zou, Jian Ding, Shiping Fu
MicroRNA (miR)-19a, a member of the miR-17-92 cluster, functions as an oncomiRNA in multiple kinds of cancers. However, its involvement in human osteosarcomas remains unclear. In this study, to analyze the expression pattern of miR-19a and to investigate its clinical implication in human osteosarcomas, quantitative reverse-transcription polymerase chain reaction was performed to detect expression levels of miR-19a in 166 self-pairs of osteosarcoma and noncancerous bone tissues. Associations between miR-19a expression and various clinicopathological parameters and patients' prognosis of osteosarcomas were further evaluated...
December 29, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28214159/is-surveillance-for-colonization-of-carbapenem-resistant-gram-negative-bacteria-important-in-adult-bone-marrow-transplantation-units
#3
Hayati Demiraslan, Fatma Cevahir, Elife Berk, Gokhan Metan, Mustafa Cetin, Emine Alp
BACKGROUND: The aim of this study was to investigate the rate of carbapenem-resistant gram-negative bacilli (CRGNB) colonization and to analyze the risk factors associated with CRGNB colonization. METHODS: This prospective study was conducted in adult patients hospitalized in hematopoietic stem cell transplantation (HSCT) units over a period of 8 months. Rectal swab samples were obtained from each participant every Monday, and patients CRGNB positive on admission were excluded...
February 15, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28213172/diet-induced-obesity-gut-microbiota-and-bone-including-alveolar-bone-loss
#4
REVIEW
Sathima Eaimworawuthikul, Parameth Thiennimitr, Nipon Chattipakorn, Siriporn C Chattipakorn
Obesity is a major risk factor for several pathologies, including jaw bone resorption. The underlying mechanisms involved in pathological conditions resulting from obesity include chronic systemic inflammation and the development of insulin resistance. Although numerous studies have indicated the importance of the role of gut microbiota in the pathogenesis of inflammation and insulin resistance in obesity, only a few studies have established a relationship between obesity, gut microbiota and status of the jaw bone...
February 7, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28213101/additively-manufactured-metallic-porous-biomaterials-based-on-minimal-surfaces-a-unique-combination-of-topological-mechanical-and-mass-transport-properties
#5
F S L Bobbert, K Lietaert, A A Eftekhari, B Pouran, S M Ahmadi, H Weinans, A A Zadpoor
: Porous biomaterials that simultaneously mimic the topological, mechanical, and mass transport properties of bone are in great demand but are rarely found in the literature. In this study, we rationally designed and additively manufactured (AM) porous metallic biomaterials based on four different types of triply periodic minimal surfaces (TPMS) that mimic the properties of bone to an unprecedented level of multi-physics detail. Sixteen different types of porous biomaterials were rationally designed and fabricated using selective laser melting (SLM) from a titanium alloy (Ti-6Al-4V)...
February 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28213096/ectopic-tissue-engineered-ligament-with-silk-collagen-scaffold-for-acl-regeneration-a-preliminary-study
#6
Jisheng Ran, Yejun Hu, Huihui Le, Yangwu Chen, Zefeng Zheng, Xiao Chen, Zi Yin, Ruijian Yan, Zhangchu Jin, Chenqi Tang, Jiayun Huang, Yanjia Gu, Langhai Xu, Shengjun Qian, Wei Zhang, Boon Chin Heng, Pioletti Dominique, Weishan Chen, Lidong Wu, Weiliang Shen, Hongwei Ouyang
: Anterior cruciate ligament (ACL) reconstruction remains a formidable clinical challenge because of the lack of vascularization and adequate cell numbers in the joint cavity. In this study, we developed a novel strategy to mimic the early stage of repair in vivo, which recapitulated extra-articular inflammatory response to facilitate the early ingrowth of blood vessels and cells. A vascularized ectopic tissue engineered ligament (ETEL) with silk collagen scaffold was developed and then transferred to reconstruct the ACL in rabbits without interruption of perfusion...
February 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28212706/sclerostin-antibody-inhibits-skeletal-deterioration-in-mice-exposed-to-partial-weight-bearing
#7
J M Spatz, R Ellman, A M Cloutier, L Louis, M van Vliet, D Dwyer, M Stolina, H Z Ke, M L Bouxsein
Whereas much is known regarding the musculoskeletal responses to full unloading, little is known about the physiological effects and response to pharmacological agents in partial unloading (e.g. Moon and Mars) environments. To address this, we used a previously developed ground-based model of partial weight-bearing (PWB) that allows chronic exposure to reduced weight-bearing in mice to determine the effects of murine sclerostin antibody (SclAbII) on bone microstructure and strength across different levels of mechanical unloading...
February 2017: Life Sciences in Space Research
https://www.readbyqxmd.com/read/28212442/ecto-5-nucleotidase-cd73-nt5e-vitamin-d-receptor-and-fgf23-gene-polymorphisms-may-play-a-role-in-the-development-of-calcific-uremic-arteriolopathy-in-dialysis-patients-data-from-the-german-calciphylaxis-registry
#8
Hansjörg Rothe, Vincent Brandenburg, Margot Haun, Barbara Kollerits, Florian Kronenberg, Markus Ketteler, Christoph Wanner
INTRODUCTION: Calciphylaxis/calcific uremic arteriolopathy affects mainly end-stage kidney disease patients but is also associated with malignant disorders such as myeloma, melanoma and breast cancer. Genetic risk factors of calciphylaxis have never been studied before. METHODS: We investigated 10 target genes using a tagging SNP approach: the genes encoding CD73/ ecto-5'-nucleotidase (purinergic pathway), Matrix Gla protein, Fetuin A, Bone Gla protein, VKORC1 (all related to intrinsic calcification inhibition), calcium-sensing receptor, FGF23, Klotho, vitamin D receptor, stanniocalcin 1 (all related to CKD-MBD)...
2017: PloS One
https://www.readbyqxmd.com/read/28211933/enhanced-bone-tissue-regeneration-using-a-3d-printed-microstructure-incorporated-with-a-hybrid-nano-hydrogel
#9
Dong Nyoung Heo, Nathan J Castro, Se-Jun Lee, Hanaul Noh, Wei Zhu, Lijie Grace Zhang
Three-dimensional (3D) functional constructs with biomimetic mechanical and chemical properties are ideal for various regenerative medicine applications. These properties of 3D fabricated constructs mainly depend on the intrinsic characteristics of the materials and fabrication method. In this respect, the current use of hydrogels for musculoskeletal tissue repair is not ideal due to the lack of suitable mechanical properties, as well as the high biomimetic requirement for success. To overcome this limitation, we developed a novel functionalized hydrogel with bioactive gold nanoparticles (GNPs), reinforcing a 3D printed microstructure via fused deposition modeling (FDM) for bone tissue regeneration...
February 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/28211679/site-directed-immobilization-of-bmp-2-two-approaches-for-the-production-of-innovative-osteoinductive-scaffolds
#10
Barbara Tabisz, Werner Schmitz, Michael Schmitz, Tessa Luehmann, Eva Heusler, Jens-Christoph Rybak, Lorenz Meinel, Juliane E Fiebig, Thomas D Mueller, Joachim Nickel
The regenerative potential of bone is strongly impaired in pathological conditions, such as nonunion fractures. To support bone regeneration various scaffolds have been developed in the past, which have been functionalized with osteogenic growth factors such as bone morphogenetic proteins (BMPs). However, most of them required supra-physiological levels of these proteins leading to burst releases, thereby causing severe side effects. Site-specific, covalent coupling of BMP2 to implant materials might be an optimal strategy in order to overcome these problems...
February 17, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28211281/jejunal-metastasis-of-renal-cell-carcinoma
#11
Pamela Estévez Boullosa, Alfonso Martínez Turnes, Roberto Carracedo Iglesias, José Ignacio Rodríguez Prada
A 71-year-old female presented with melena and anemia. She had a past medical history of renal cell carcinoma diagnosed six years earlier and treated with left nephrectomy. Gastroscopy and colonoscopy showed no abnormalities. Renal cell carcinoma (RCC) is the third commonest urological malignancy, and approximately 25-50% of patients develop metastatic disease after surgery of the primary tumor. The most common sites of metastasis involve lung, lymph nodes, liver, bone and adrenal glands.
February 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28210944/postoperative-imaging-in-arthroscopic-hip-surgery
#12
REVIEW
F Di Pietto, V Chianca, R de Ritis, E Cesarano, A Reginelli, A Barile, M Zappia, L Ginolfi
Arthroscopic surgery of the hip, compared to that of the knee or the shoulder, has only recently been developed in any significant way. Current indications for arthroscopic surgery of the hip include: diagnosis and treatment of lesions symptomatic of the acetabular labrum, femoroacetabular impingement (FAI), chondral lesions, joint infections, lesions of the teres ligament, impingement of the psoas tendon, pathology of the peritrochanteric space, external snapping hip (coxa saltans), and traumatic and atraumatic instability...
February 16, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28210913/dietary-and-commercialized-fructose-sweet-or-sour
#13
REVIEW
Aslihan Yerlikaya, Tuncay Dagel, Christopher King, Masanari Kubawara, Miguel A Lanaspa, Ana Andres-Hernando, Adrian Covic, Jacek Manitius, Alan A Sag, Mehmet Kanbay
Metabolic syndrome and diabetes are main health problems of modern life in the twenty-first century. Alarming ratios of global prevalence lead to conduct more and more researches about etiological factors and pathogenesis. Disease mechanism is elementary for advancing more efficient and practicable treatment methods. Concurrent increase in both fructose consumption with Western diet and metabolic syndrome has revealed fructose hypothesis that suggests fructose as one of etiological factor of metabolic syndrome (insulin resistance, central obesity, hypertension, etc...
February 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28210558/bisphosphonate-related-osteonecrosis-of-jaws-in-advanced-stage-breast-cancer-was-detected-from-bone-scan-a-case-report
#14
Prakasit Chirappapha, Saowanee Kitudomrat, Thanaporn Thongjood, Rangsima Aroonroch
Bisphosphonates (BPs) are indicated to treat skeletal-related events (SREs) for cancer patients with bone metastasis. We report a 79-year-old woman with advanced stage breast cancer with bone metastasis who was prescribed BPs (zoledronate), then developed osteonecrosis of jaw. We provide a brief review of the pathogenesis, diagnosis and treatment of this complication.
February 2017: Gland Surgery
https://www.readbyqxmd.com/read/28210260/from-the-cradle-to-the-grave-the-role-of-macrophages-in-erythropoiesis-and-erythrophagocytosis
#15
REVIEW
Thomas R L Klei, Sanne M Meinderts, Timo K van den Berg, Robin van Bruggen
Erythropoiesis is a highly regulated process where sequential events ensure the proper differentiation of hematopoietic stem cells into, ultimately, red blood cells (RBCs). Macrophages in the bone marrow play an important role in hematopoiesis by providing signals that induce differentiation and proliferation of the earliest committed erythroid progenitors. Subsequent differentiation toward the erythroblast stage is accompanied by the formation of so-called erythroblastic islands where a central macrophage provides further cues to induce erythroblast differentiation, expansion, and hemoglobinization...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28209986/nf-%C3%AE%C2%BAb-signaling-regulates-cell-autonomous-regulation-of-cxcl10-in-breast-cancer-4t1-cells
#16
Won Jong Jin, Bongjun Kim, Darong Kim, Hea-Young Park Choo, Hong-Hee Kim, Hyunil Ha, Zang Hee Lee
The chemokine CXCL10 and its receptor CXCR3 play a role in breast cancer metastasis to bone and osteoclast activation. However, the mechanism of CXCL10/CXCR3-induced intracellular signaling has not been fully investigated. To evaluate CXCL10-induced cellular events in the mouse breast cancer cell line 4T1, we developed a new synthetic CXCR3 antagonist JN-2. In this study, we observed that secretion of CXCL10 in the supernatant of 4T1 cells was gradually increased during cell growth. JN-2 inhibited basal and CXCL10-induced CXCL10 expression and cell motility in 4T1 cells...
February 17, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28209368/correlation-of-micro-vessel-density-and-c-myc-expression-in-breast-tumor-of-mice-following-mesenchymal-stem-cell-therapy
#17
Maryam Adelipour, Fatemeh Babaei, Mohammadreza Mirzababaei, Abdolamir Allameh
Stem cell therapy for degenerative diseases has been established; however there are controversies over the treatment of solid tumors with stem cell transplantation. In the present study, the anti-tumor action of mesenchymal stem cells (MSCs) has been examined in a mouse model of breast cancer with emphasize on tumor growth, angiogenesis and c-Myc expression in breast tumors. For this purpose, MSCs were isolated from bone marrow of Balb/c mice and characterized. A Balb/c mouse model of breast cancer was developed and subjected to cell therapy intra venous (I...
January 30, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28208958/radiological-and-histopathological-outcome-of-giant-cell-tumor-of-femur-with-denosumab-treatment-a-case-report
#18
Preethi Dileep Menon, R Krishnakumar, Annie Jojo
Giant Cell Tumour of Bone (GCTB) is a benign but locally aggressive osteolytic skeletal neoplasm of young adults consisting of giant cells expressing RANK (Receptor Activator of Nuclear Factor-κB) and mesenchymal spindle-like stromal cells expressing RANKL (RANK ligand). The interaction of these cells leads to bone resorption. Recently, the RANKL inhibitor, denosumab, has demonstrated activity against giant-cell tumours. The current article reports a case of a Giant cell tumour of left distal femur with pathological fracture...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208840/morphological-variations-of-the-thyroid-gland-among-the-people-of-upper-assam-region-of-northeast-india-a-cadaveric-study
#19
Anjan Jyoti Rajkonwar, Giriraj Kusre
INTRODUCTION: The morphological variations of the thyroid gland have been reported from different parts of the world. The variations are due to remnant or non-specific development of the parts of the thyroid gland. Surgical operation of the thyroid gland has been the treatment of choice in various thyroid pathologies. Prior knowledge of the morphological variation is important to ensure better results from these surgical operations. AIM: To study the prevalence of morphological variations seen in the thyroid glands in the upper Assam region of Northeast India...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208793/chitosan-recombinamer-layer-by-layer-coatings-for-multifunctional-implants
#20
Jeevan Prasaad Govindharajulu, Xi Chen, Yuping Li, Jose Carlos Rodriguez-Cabello, Mrinal Battacharya, Conrado Aparicio
The main clinical problems for dental implants are (1) formation of biofilm around the implant-a condition known as peri-implantitis and (2) inadequate bone formation around the implant-lack of osseointegration. Therefore, developing an implant to overcome these problems is of significant interest to the dental community. Chitosan has been reported to have good biocompatibility and anti-bacterial activity. An osseo-inductive recombinant elastin-like biopolymer (P-HAP), that contains a peptide derived from the protein statherin, has been reported to induce biomineralization and osteoblast differentiation...
February 9, 2017: International Journal of Molecular Sciences
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