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Bone diseases

Majid Zaki Dizaji, Seyed H Ghaffari, Elham Hosseini, Nasrin Alizadeh, Shahrbano Rostami, Majid Momeny, Kamran Alimoghaddam, Ardeshir Ghavamzadeh
AIM: Survivin, an inhibitor of apoptosis protein, is overexpressed in most cancers and is associated with chemotherapy resistance, increased tumor recurrence and shorter patient survival. Several survivin splice variants have been described, and none of their expressions have been defined in acute promyelocytic leukemia (APL). METHODS: Expression of the survivin gene isoforms (survivin, -2α, -2B, -ΔΕx3 and -3B) were analyzed in 50 peripheral blood and 19 bone marrow samples that were collected at different phases of the disease (diagnostic, remission and relapse) in APL patients treated with arsenic trioxide (ATO) as a front-line therapy...
October 22, 2016: Asia-Pacific Journal of Clinical Oncology
Lijiang Ma, Wendy K Chung
Group 1 pulmonary hypertension or pulmonary arterial hypertension (PAH) is a rare disease characterized by proliferation and occlusion of small pulmonary arterioles, leading to progressive elevation of pulmonary artery pressure and pulmonary vascular resistance, and right ventricular failure. Historically it has been associated with a high mortality rate, although over the last decade, treatment has improved survival. PAH includes idiopathic PAH (IPAH), heritable PAH (HPAH), and PAH associated with certain medical conditions...
October 22, 2016: Journal of Pathology
Priscilla Hakime Scalize, Karina F Bombonato-Prado, Luiz Gustavo de Sousa, Adalberto Luiz Rosa, Marcio Mateus Beloti, Marisa Semprini, Rossano Gimenes, Adriana L G de Almeida, Fabíola Singaretti de Oliveira, Simone Cecilio Hallak Regalo, Selma Siessere
Osteoporosis is a chronic disease that impairs proper bone remodeling. Guided bone regeneration is a surgical technique that improves bone defect in a particular region through new bone formation, using barrier materials (e.g. membranes) to protect the space adjacent to the bone defect. The polytetrafluorethylene membrane is widely used in guided bone regeneration, however, new membranes are being investigated. The purpose of this study was to evaluate the effect of P(VDFTrFE)/BT [poly(vinylidene fluoride-trifluoroethylene)/barium titanate] membrane on in vivo bone formation...
December 2016: Journal of Materials Science. Materials in Medicine
Benjamin Kearns, Abdullah Pandor, Matt Stevenson, Jean Hamilton, Duncan Chambers, Mark Clowes, John Graham, M Satish Kumar
As part of its single technology appraisal (STA) process, the National Institute for Health and Care Excellence (NICE) invited the company that manufactures cabazitaxel (Jevtana(®), Sanofi, UK) to submit evidence for the clinical and cost effectiveness of cabazitaxel for treatment of patients with metastatic hormone-relapsed prostate cancer (mHRPC) previously treated with a docetaxel-containing regimen. The School of Health and Related Research Technology Appraisal Group at the University of Sheffield was commissioned to act as the independent Evidence Review Group (ERG)...
October 22, 2016: PharmacoEconomics
Yumiko Ohbayashi, Fumi Nakai, Akinori Iwasaki, Takaaki Ogawa, Yuka Yamamoto, Yoshihiro Nishiyama, Minoru Miyake
The duration of antiresorptive therapy is an important risk factor for medication-related osteonecrosis of the jaw. We performed a pilot study using quantitative analysis by bone scintigraphy to test the hypothesis that mandibular metabolism is affected by long-term bisphosphonate (BP) therapy. Our primary objectives were to assess changes in bone metabolism of the mandible in response to long-term BP therapy and compare the bone metabolism changes of the mandible with other bone sites. We compared the metabolic difference at the site in the mandible unaffected by disease, the humerus and the femur between 14 osteoporosis patients who were being treated with BP (BP group) and 14 patients who were not being treated with BP (control group) using a quantitative analysis and bone scintigraphy...
October 21, 2016: Odontology
Xiaodan Luo, Lihua Xu, Yangqiu Li, Huo Tan
Graft-versus-host disease (GVHD) induced by host antigen-presenting cells (APCs) and donor-derived T cells remains the major limitation of allogeneic bone marrow transplantation (allo-BMT). Notch signaling pathway is a highly conserved cell-cell communication that is important in T cell development. Recently, Notch signaling pathway is reported to be involved in regulating GVHD. To investigate the role of Notch inhibition in modulating GVHD, we established MHC-mismatched murine allo-BMT model. We found that inhibition of Notch signaling pathway by γ-secretase inhibitor in vivo could reduce aGVHD, which was shown by the onset time of aGVHD, body weight, clinical aGVHD scores, pathology aGVHD scores, and survival...
October 21, 2016: Cell Biology and Toxicology
Ana M Denis-Bacelar, Sarah J Chittenden, David P Dearnaley, Antigoni Divoli, Joe M O'Sullivan, V Ralph McCready, Bernadette Johnson, Yong Du, Glenn D Flux
PURPOSE: To investigate the role of patient-specific dosimetry as a predictive marker of survival and as a potential tool for individualised molecular radiotherapy treatment planning of bone metastases from castration-resistant prostate cancer, and to assess whether higher administered levels of activity are associated with a survival benefit. METHODS: Clinical data from 57 patients who received 2.5-5.1 GBq of (186)Re-HEDP as part of NIH-funded phase I/II clinical trials were analysed...
October 21, 2016: European Journal of Nuclear Medicine and Molecular Imaging
Nancy Chan, Amy Willis, Naomi Kornhauser, Maureen M Ward, Sharrell B Lee, Eleni Nackos, Bo Ri Seo, Ellen Chuang, Tessa Cigler, Anne Moore, Diana Donovan, Marta Vallee Cobham, Veronica Fitzpatrick, Sarah Schneider, Alysia Wiener, Jessica Guillaume-Abraham, Elnaz Anjom, Richard Zelkowitz, J David Warren, Maureen E Lane, Claudia Fischbach, Vivek Mittal, Linda Vahdat
PURPOSE: Bone marrow derived progenitor cells; including VEGFR2+ endothelial progenitor cells (EPCs) and copper-dependent pathways model the tumor microenvironment. We hypothesized that copper depletion (CD) using tetrathiomolybdate (TM) would reduce EPCs in high risk for relapse breast cancer (BC) patients (pts). We investigated the effect of TM on the tumor microenvironment in preclinical models. EXPERIMENTAL DESIGN: Stage 2 triple negative BC (TNBC), Stage 3 and stage 4 without any evidence of disease, (NED) BC pts, received oral TM to maintain ceruloplasmin (Cp) between 8-17mg/dL for 2 years or until relapse...
October 21, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Adam C Seegmiller, Annette S Kim, Claudio A Mosse, Aaron C Shaver, Mary Ann Thompson, Shaoying Li, David R Head, Mary M Zutter
OBJECTIVES: To determine the effect of iterative refinement of standard ordering protocols on test utilization and results for bone marrow biopsy specimens. METHODS: Eighteen months of test utilization and result data were used to revise the protocols that determine cytogenetic and molecular test selection on bone marrow specimens and then compared with data obtained following protocol revision. RESULTS: Revision of protocols resulted in reduction in total tests and associated charges, due to a decrease in tests both concordant and discordant with the protocols...
October 20, 2016: American Journal of Clinical Pathology
Darwin J Prockop
From the outset, it was apparent that developing new therapies with mesenchymal stem/stromal cells (MSCs) was not a simple or easy task. Among the earliest experiments was administration of MSCs from normal mice to transgenic mice that developed brittle bones because they expressed a mutated gene for type 1 collagen isolated from a patient with osteogenesis imperfecta. The results prompted a clinical trial of MSCs in patients with severe osteogenesis imperfecta. Subsequent work by large numbers of scientists and clinicians has established that, with minor exceptions, MSCs do not engraft or differentiate to a large extent in vivo...
October 18, 2016: Cytotherapy
Xi Chen, Heng Qiu, Chao Wang, Yu Yuan, Jennifer Tickner, Jiake Xu, Jun Zou
Choline, a hydrophilic cation, has versatile physiological roles throughout the body, including cholinergic neurotransmission, memory consolidation and membrane biosynthesis and metabolism. Choline kinases possess enzyme activity that catalyses the conversion of choline to phosphocholine, which is further converted to cytidine diphosphate-coline (CDP-choline) in the biosynthesis of phosphatidylcholine (PC). PC is a major constituent of the phospholipid bilayer which constitutes the eukaryotic cell membrane, and regulates cell signal transduction...
October 8, 2016: Cytokine & Growth Factor Reviews
Serdar Sivgin, Sinan Nazlim, Gokmen Zararsiz, Osman Baspinar, Leylagul Kaynar, Kemal Deniz, Mustafa Cetin, Ali Unal, Bulent Eser
BACKGROUND: Iron overload is one of the most significant problems as a leading cause of death in patients with leukemia and those who underwent allogeneic hematopoietic stem cell transplantation (alloHSCT). METHODS: In the current study, we retrospectively evaluated the bone marrow iron scores (BMIS) in patients who underwent alloHSCT (n = 125). The first available bone marrow biopsy specimens prior to the alloHSCT procedure or date of hospitalization (control group) were assessed in a blinded fashion using a standardized scoring system...
October 2016: Clinical Lymphoma, Myeloma & Leukemia
Hiroki Namikawa, Yasuhiko Takemoto, Ayako Makuuchi, Masanori Kobayashi, Shigeki Kinuhata, Mina Morimura, Takashi Ikebe, Hiromu Tanaka, Taichi Shuto
BACKGROUND: Most cases of disseminated carcinomatosis of the bone marrow (DCBM) arise from gastric cancer. DCBM from pancreatic cancer is very rare. We herein present a case of DCBM from pancreatic cancer. CASE PRESENTATION: A 57-year-old man was referred to our hospital for severe lumbago. Laboratory data indicated that he suffered from disseminated intravascular coagulation (DIC). Non-contrast abdominal computed tomography (CT) revealed multiple bone masses but no other abnormal findings...
October 13, 2016: BMC Cancer
Roberta E Rossi, Tara Whyand, Charles D Murray, Mark I Hamilton, Dario Conte, Martyn E Caplin
Inflammatory bowel diseases (IBD) are chronic immune disorders of unclear aetiology. Dietary deficiencies may be a potential pathogenic factor in their development. Patients often take food supplements without knowledge of any evidence base. We have therefore assessed the evidence for food supplementation in the management of IBD. A PubMed search was performed for the terms Inflammatory bowel disease; nutritional deficiencies; dietary supplements; curcumin; green tea; vitamin D/other vitamins; folic acid; iron; zinc; probiotics; andrographis paniculata; and boswellia serrate...
December 2016: European Journal of Gastroenterology & Hepatology
Jiang Yue, James F Griffith, Fan Xiao, Lin Shi, Defeng Wang, Jiayun Shen, Priscilla Wong, Edmund K Li, Martin Li, Tena K Li, Tracy Y Zhu, Vivian W Hung, Ling Qin, Lai-Shan Tam
Objective To compare the bone healing effects of denosumab and alendronate in female rheumatoid arthritis (RA) patients by high-resolution peripheral quantitative computed tomography (HR-pQCT). Methods This is a post-hoc analysis of a randomized-controlled trial (NCT01770106). 40 patients were randomized in a 1:1 ratio to receive either subcutaneous denosumab (60mg) once or oral alendronate (70mg) weekly for 6 months. The size of individual bone erosions and the presence and extent of erosion-associated sclerosis (marginal osteosclerosis) were measured in the second metacarpal head of the non-dominant hand at baseline, 3 and 6 months...
October 21, 2016: Arthritis Care & Research
Marina Magnani, Giovanni Trisolino, Stefano Stilli
INTRODUCTION: Idiopathic posttraumatic nonunion is a rare condition in children; the treatment of this complication is still controversial in this peculiar population. CASE REPORT: We report a case of a subcapital type II femoral neck fracture, in a 12-year-old boy, which was initially treated by internal fixation and subsequently went on to a nonunion at the femoral neck, in absence of infection or other disease.1 year after index surgery we performed surgical debridement and refixation with plate and bone allograft, added with autologous bone marrow aspiration concentrate (BMAC) and platelet-rich fibrin (PRF)...
October 15, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
Alexia Mopin, Virginie Driss, Carine Brinster
The intravenous injection of C1498 cells into syngeneic or congenic mice has been performed since 1941. These injections result in the development of acute leukemia. However, the nature of this disease has not been well documented in the literature. Here, we provide a technical protocol for characterizing C1498 cells in vitro and for determining the nature of the induced leukemia in vivo. The first part of this procedure is focused on determining the hematopoietic lineage and the stage of differentiation of cultured C1498 cells...
October 14, 2016: Journal of Visualized Experiments: JoVE
Giulia R Mosele, Gianfilippo Caggiari, Roberto M Scarpa, Carlo Doria
BACKGROUND: Renal cell carcinoma (RCC) is among the 10 most common cancers in both men and women. It comprises 2-3% of all malignancies. The most common site for metastasis from RCC is the lung (50% of patients), followed by the skeleton (20% to 50% of patients). METHODS: We retrospectively reviewed our consecutive series of 63 patients surgically treated for spinal metastases from RCC. The surgical treatment for spinal metastases varied in each patient. Factors influencing the choice of surgery included age, disease status, symptoms, morbidity of the patient, the location, the number of repetitive lesions and the existence of extra-osseous metastases...
October 21, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
Christina Huang Wright, Dorian Kusyk, William S Rosenberg, Jennifer A Sweet
Lymphangiomatosis is a rare congenital disorder that results in multiorgan system lymphatic invasion. Symptoms due to axial skeletal involvement can range from chronic bone pain to severe deformity resulting in radiculopathy, myelopathy, and even paralysis. The authors present a case of lymphangiomatosis of the clivus, C-1, and C-2, resulting in chronic pain. The patient was successfully treated with percutaneous transoral clivoplasty and vertebroplasty, without disease progression or return of symptoms at 2 years...
October 21, 2016: Journal of Neurosurgery. Spine
Mamdooh Abdullah Gari, Mohammed AlKaff, Haneen S Alsehli, Ashraf Dallol, Abdullah Gari, Muhammad Abu-Elmagd, Roaa Kadam, Mohammed F Abuzinadah, Mazin Gari, Adel M Abuzenadah, Kalamegam Gauthaman, Heba Alkhatabi, Mohammed M Abbas
BACKGROUND: Osteoarthritis (OA) is a progressive joint disease characterized by gradual degradation of extracellular matrix (ECM) components in the cartilage and bone. The ECM of cartilage is a highly specified structure that is mainly composed of type II collagen and provides tensile strength to the tissue via aggrecan and proteoglycans. However, changes in the ECM composition and structure can lead to loss of collagen type II and network integrity. Several risk factors have been correlated with OA including age, genetic predisposition, hereditary factors, obesity, mechanical injuries, and joint trauma...
October 10, 2016: BMC Medical Genetics
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