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https://www.readbyqxmd.com/read/28209562/vinexin-%C3%AE-ablation-inhibits-atherosclerosis-in-apolipoprotein-e-deficient-mice-by-inactivating-the-akt-nuclear-factor-%C3%AE%C2%BAb-inflammatory-axis
#1
Hongjing Guan, Wen-Lin Cheng, Junhong Guo, Meng-Lin Chao, Yan Zhang, Jun Gong, Xue-Yong Zhu, Zhi-Gang She, Zan Huang, Hongliang Li
BACKGROUND: Vinexin β is a novel adaptor protein that regulates cellular adhesion, cytoskeletal reorganization, signal transduction, and transcription; however, the exact role that vinexin β plays in atherosclerosis remains unknown. METHODS AND RESULTS: Immunoblot analysis showed that vinexin β expression is upregulated in the atherosclerotic lesions of both patients with coronary heart disease and hyperlipemic apolipoprotein E-deficient mice and is primarily localized in macrophages indicated by immunofluorescence staining...
February 16, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28206698/fkbp10-deletion-in-osteoblasts-leads-to-qualitative-defects-in-bone
#2
Caressa D Lietman, Joohyun Lim, Ingo Grafe, Yuqing Chen, Hao Ding, Xiaohong Bi, Catherine G Ambrose, Nadja Fratzl-Zelman, Paul Roschger, Klaus Klaushofer, Wolfgang Wagermaier, Ingo Schmidt, Peter Fratzl, Jyoti Rai, MaryAnn Weis, David Eyre, Douglas R Keene, Deborah Krakow, Brendan H Lee
Osteogenesis Imperfecta (OI), also known as brittle bone disease, displays a spectrum of clinical severity from mild (OI type I) to severe early lethality (OI type II), with clinical features including low bone mass, fractures and deformities. Mutations in the FK506 Binding Protein 10 (FKBP10), gene encoding the 65KDa protein FKBP65, cause a recessive form of OI and Bruck syndrome, the latter being characterized by joint contractures in addition to low bone mass. We previously showed that Fkbp10 expression is limited to bone, tendon and ligaments in postnatal tissues...
February 16, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28203089/impact-of-tumor-volume-doubling-time-on-post-metastatic-survival-in-bone-or-soft-tissue-sarcoma-patients-treated-with-metastasectomy-and-or-radiofrequency-ablation-of-the-lung
#3
Tomoki Nakamura, Akihiko Matsumine, Motoshi Takao, Atsuhiro Nakatsuka, Takao Matsubara, Kunihiro Asanuma, Akihiro Sudo
Metastasectomy represents the standard treatment for improving survival in patients with lung metastases (LMs) from bone (BS) or soft-tissue sarcoma (STS). Recently, radiofrequency ablation (RFA) of the LMs has been proved to be a useful option which can promise the similar effect to metastasectomy. The aim of this study was to determine prognostic factors, including tumor volume doubling time (TVDT), for post-metastatic survival in BS and STS patients treated with metastasectomy and/or RFA of the lung. Forty-eight patients with LMs were retrospectively reviewed...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28195984/reconstruction-following-tumor-resections-in-skeletally-immature-patients
#4
Adam S Levin, Alexandre Arkader, Carol D Morris
Reconstruction options in children after bone tumor resection are as varied as they are challenging. Advances in biologic and endoprosthetic design have led to many choices, all of which must be considered in the context of prognosis, treatment limitations, and patient/family expectations. The current experience and results of limb-sparing surgery following bone sarcoma resection in growing children are discussed, including allograft, autograft, and metallic prostheses alone and in combination, especially as they pertain to the knee...
March 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28193140/short-term-clinico-radiological-outcome-of-chronic-knee-synovitis-among-haemophilia-a-patients-post-phosphorus-32-radiosynoviorthesis
#5
Prasanna Ty, Jagadish Menon, Nataraj Ar, Dhanapathi Halanaik, Harshith Kramadhari
PURPOSE: Various modes of therapy have been directed at breaking the vicious cycle at early stage of synovitis in haemophilia patients. This study was planned to assess the short-term clinico-radiological outcome of chronic knee synovitis among haemophilia A patients post phosphorus-32 (P-32) radiosynoviorthesis. METHODS: P-32 samarium radiocolloid was injected into the knee and patients were followed up at 1 and 3 months, respectively. Clinical outcomes was assessed using Tegner Lysholm scores (TLSs), Modified Knee Society Clinical Rating System (MKSS) score and circumference of the knee joint...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28188245/roquin-paralogs-differentially-regulate-functional-nkt-cell-subsets
#6
Christoph Drees, J Christoph Vahl, Sabrina Bortoluzzi, Klaus D Heger, Julius C Fischer, F Thomas Wunderlich, Christian Peschel, Marc Schmidt-Supprian
NKT cells represent a small subset of glycolipid-recognizing T cells that are heavily implicated in human allergic, autoimmune, and malignant diseases. In the thymus, precursor cells recognize self-glycolipids by virtue of their semi-invariant TCR, which triggers NKT cell lineage commitment and maturation. During their development, NKT cells are polarized into the NKT1, NKT2, and NKT17 subsets, defined through their cytokine-secretion patterns and the expression of key transcription factors. However, we have largely ignored how the differentiation into the NKT cell subsets is regulated...
February 10, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28183835/benign-spine-lesions-advances-in-techniques-for-minimally-invasive-percutaneous-treatment
#7
REVIEW
A Tomasian, A N Wallace, J W Jennings
Minimally invasive percutaneous imaging-guided techniques have been shown to be safe and effective for the treatment of benign tumors of the spine. Techniques available include a variety of tumor ablation technologies, including radiofrequency ablation, cryoablation, microwave ablation, alcohol ablation, and laser photocoagulation. Vertebral augmentation may be performed after ablation as part of the same procedure for fracture stabilization or prevention. Typically, the treatment goal in benign spine lesions is definitive cure...
February 9, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28182733/pyruvate-dehydrogenase-kinase-1-is-essential-for-transplantable-mouse-bone-marrow-hematopoietic-stem-cell-and-progenitor-function
#8
Camilla Halvarsson, Pernilla Eliasson, Jan-Ingvar Jönsson
BACKGROUND: Accumulating evidence suggests that hypoxic areas in the bone marrow are crucial for maintenance of hematopoietic stem cells (HSCs) by supporting a quiescent state of cell cycle and regulating the transplantation capacity of long-term (LT)-HSCs. In addition, HSCs seem to express a metabolic profile of energy production away from mitochondrial oxidative phosphorylation in favor of glycolysis. At oxygen deprivation, hypoxia inducible factor 1α (HIF-1α) is known to induce glycolytic enzymes as well as suppressing mitochondrial energy production by inducing pyruvate dehydrogenase kinase 1 (Pdk1) in most cell types...
2017: PloS One
https://www.readbyqxmd.com/read/28181822/oncogenic-osteomalacia-role-of-ga-68-dotanoc-pet-ct-scan-in-identifying-the-culprit-lesion-and-its-management
#9
Deepa Singh, Mudalsha Ravina, Narvesh Kumar, Veeresh Dube, Utham Kumar K, Manish Dixit, Sanjay Gambhir
OBJECTIVES: The aim of this study was to evaluate role of (68)Ga-DOTANOC PET/CT scan in localization of culprit lesion for biopsy and required intervention (surgical excision/radiofrequency ablation) in patients with long standing oncogenic osteomalacia (OOM)/tumor induced osteomalacia (TIO). METHODS: 17 patients (08 male & 09 female) underwent (68)Ga-DOTANOC PET/CT scan. The patients referred with clinical and biochemical evidence of hypophosphatemia and raised Fibroblast Growth Factor-23 (FGF-23)...
February 9, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28166224/mesoderm-specific-stat3-deletion-affects-expression-of-sox9-yielding-sox9-dependent-phenotypes
#10
Michael D Hall, Caroline A Murray, Michael J Valdez, Alan O Perantoni
To date, mutations within the coding region and translocations around the SOX9 gene both constitute the majority of genetic lesions underpinning human campomelic dysplasia (CD). While pathological coding-region mutations typically result in a non-functional SOX9 protein, little is known about what mechanism(s) controls normal SOX9 expression, and subsequently, which signaling pathways may be interrupted by alterations occurring around the SOX9 gene. Here, we report the identification of Stat3 as a key modulator of Sox9 expression in nascent cartilage and developing chondrocytes...
February 6, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28162997/legumain-regulates-differentiation-fate-of-human-bone-marrow-stromal-cells-and-is-altered-in-postmenopausal-osteoporosis
#11
Abbas Jafari, Diyako Qanie, Thomas L Andersen, Yuxi Zhang, Li Chen, Benno Postert, Stuart Parsons, Nicholas Ditzel, Sundeep Khosla, Harald Thidemann Johansen, Per Kjærsgaard-Andersen, Jean-Marie Delaisse, Basem M Abdallah, Daniel Hesselson, Rigmor Solberg, Moustapha Kassem
Secreted factors are a key component of stem cell niche and their dysregulation compromises stem cell function. Legumain is a secreted cysteine protease involved in diverse biological processes. Here, we demonstrate that legumain regulates lineage commitment of human bone marrow stromal cells and that its expression level and cellular localization are altered in postmenopausal osteoporotic patients. As shown by genetic and pharmacological manipulation, legumain inhibited osteoblast (OB) differentiation and in vivo bone formation through degradation of the bone matrix protein fibronectin...
February 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28159479/epithelioid-hemangioma-of-the-scapula-treated-with-chemoembolization-and-microwave-ablation-%C3%AE-case-report
#12
Konstantinos Tsikopoulos, Evangelos Perdikakis, Dimitrios Georgiannos, Ilias Bisbinas
Bone epithelioid hemangiomas are classified within benign vascular tumours but are commonly misdiagnosed as low-grade angiosarcomas or epithelioid hemangioendotheliomas. Current therapeutic interventions include various treatment options but local recurrence or distal lymph node involvement has been reported. We report a rare case of scapular epithelioid hemangioma that was initially treated using a combination of chemoembolization and microwave ablation. This combination has not been previously reported in the literature regarding the management of this tumour...
January 31, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28152584/a-wide-temporal-window-for-conjunctival-papillae-development-ensures-the-formation-of-a-complete-sclerotic-ring
#13
Karyn Jourdeuil, Tamara Anne Franz-Odendaal
BACKGROUND: The conjunctival papillae are epithelial thickenings of the conjunctiva that are required for the induction of underlying bones (the scleral ossicles). These transient papillae develop and become inductively active over an extended temporal period (HH 30-36, 6.5-10 dpf). While their inductive capacity was discovered in the mid-1900s, little is known about their development. RESULTS: Through a series of timed surgical ablations followed by in situ hybridization for Bmp2, we show that the ring of conjunctival papillae is not altered if the conjunctival epithelium is ablated either prior to or shortly after papillae induction (i...
February 2, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28148780/pth4-an-ancient-parathyroid-hormone-lost-in-eutherian-mammals-reveals-a-new-brain-to-bone-signaling-pathway
#14
Paula Suarez-Bregua, Eva Torres-Nuñez, Ankur Saxena, Pedro Guerreiro, Ingo Braasch, David A Prober, Paloma Moran, Jose Miguel Cerda-Reverter, Shao Jun Du, Fatima Adrio, Deborah M Power, Adelino V M Canario, John H Postlethwait, Marianne E Bronner, Cristian Cañestro, Josep Rotllant
Regulation of bone development, growth, and remodeling traditionally has been thought to depend on endocrine and autocrine/paracrine modulators. Recently, however, brain-derived signals have emerged as key regulators of bone metabolism, although their mechanisms of action have been poorly understood. We reveal the existence of an ancient parathyroid hormone (Pth)4 in zebrafish that was secondarily lost in the eutherian mammals' lineage, including humans, and that is specifically expressed in neurons of the hypothalamus and appears to be a central neural regulator of bone development and mineral homeostasis...
February 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28147358/hematopoietic-stem-cell-transplantation-in-crohn-s-disease-state-of-the-art-treatment
#15
C J Hawkey
Both autologous and allogeneic haemopoietic stem cell transplantation (HSCT) have been tried in Crohn's disease (CD). In allogeneic HSCT, the host bone marrow is ablated and replaced by bone marrow from a donor. This substitution of a genetically different bone marrow is effective in a number of conditions including those with an immunological basis such as CD. While the toxicity of allogeneic HSCT has precluded its uptake in idiopathic CD, there is interest in its utility in the management of early onset infantile (inflammatory bowel disease), which behaves as a monogenic disorder, with abnormalities of the interleukin 10 signalling system as the best recognized...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28138025/activity-of-the-pore-forming-virulence-factor-listeriolysin-o-is-reversibly-inhibited-by-naturally-occurring-s-glutathionylation
#16
Jonathan L Portman, Qiongying Huang, Michelle L Reniere, Anthony T Iavarone, Daniel A Portnoy
Cholesterol-dependent cytolysins (CDCs) represent a family of homologous pore-forming proteins secreted by many Gram-positive bacterial pathogens. CDCs mediate membrane binding partly through a conserved C-terminal undecapeptide, which contains a single cysteine residue. While mutational changes to other residues in the undecapeptide typically have severe effects, mutating the cysteine residue to alanine has minor effects on overall protein function. Thus, the function of this highly conserved reactive cysteine residue remains largely unknown...
January 30, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28128304/targeting-osteoblastic-casein-kinase-2-interacting-protein-1-to-enhance-smad-dependent-bmp-signaling-and-reverse-bone-formation-reduction-in-glucocorticoid-induced-osteoporosis
#17
Jin Liu, Changwei Lu, Xiaohao Wu, Zongkang Zhang, Jie Li, Baosheng Guo, Defang Li, Chao Liang, Lei Dang, Xiaohua Pan, Songlin Peng, Aiping Lu, Baoting Zhang, Ge Zhang
The underlying mechanism of the reduced bone formation during the development of glucocorticoid-induced osteoporosis (GIO) remains unclear. Here, we found that the highly expressed CKIP-1 together with lowly expressed total and phosphorylated Smad1/5 in bone samples was accompanied by either the reduced serum bone formation markers in GIO patients or the decreased bone formation in GIO mice. In vitro studies showed that the highly expressed CKIP-1 could promote Smad1 ubiquitination to suppress the Smad-dependent BMP signaling and inhibit osteogenic differentiation and mineral deposition in MC3T3-E1 cells during glucocorticoid treatment...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28123536/evaluation-of-minimally-invasive-laser-ablation-in-children-with-osteoid-osteoma
#18
Hao Wu, Cheng Lu, Ming Chen
The effects between minimally invasive percutaneous laser ablation and open surgery in the treatment of children with osteoid osteoma were compared in the present study. A total of 72 cases of children with osteoid osteoma were divided into control and observational groups, containing 36 cases in each group. The control group underwent conventional open surgery while the observational group underwent minimally invasive CT guided percutaneous laser ablation. Effects of both operations were compared. The operation duration, blood loss and plaster fixation duration of the observational group were significantly less than those of the control group...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28120057/reconstruction-of-vertebral-body-after-radiofrequency-ablation-and-augmentation-in-dorsolumbar-metastatic-vertebral-fracture-analysis-of-clinical-and-radiological-outcome-in-a-clinical-series-of-18-patients
#19
Rosario Maugeri, Francesca Graziano, Luigi Basile, Carlo Gulì, Antonella Giugno, Giuseppe Roberto Giammalva, Massimiliano Visocchi, Domenico Gerardo Iacopino
BACKGROUND: Painful spinal metastases usually occur in malignant neoplastic disease. Treatment for bone metastases has been largely conservative, and it includes the use of high doses of analgesics, radiotherapy, chemotherapy, hormone therapy, and bisphosphonates; however, results are sometimes transient and ineffective. In the presence of neurological involvement a surgical strategy should be considered. Recently, percutaneous procedures such as radiofrequency ablation, vertebroplasty, and kyphoplasty have been introduced as palliative techniques to treat painful vertebral metastases [3, 11, 25]...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28115514/ablation-of-interferon-regulatory-factor-3-protects-against-atherosclerosis-in-apolipoprotein-e-deficient-mice
#20
Hui Liu, Wen-Lin Cheng, Xi Jiang, Pi-Xiao Wang, Chun Fang, Xue-Yong Zhu, Zan Huang, Zhi-Gang She, Hongliang Li
The secretion of adhesion molecules by endothelial cells, as well as the subsequent infiltration of macrophages, determines the initiation and progression of atherosclerosis. Accumulating evidence suggests that IRF3 (interferon regulatory factor 3) is required for the induction of proinflammatory cytokines and for endothelial cell proliferation. However, the effect and underlying mechanism of IRF3 on atherogenesis remain unknown. Our results demonstrated a moderate-to-strong immunoreactivity effect associated with IRF3 in the endothelium and macrophages of the atherosclerotic plaques in patients with coronary heart disease and in hyperlipidemic mice...
March 2017: Hypertension
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