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https://www.readbyqxmd.com/read/28454473/methylation-pattern-of-preferentially-expressed-antigen-of-melanoma-in-acute-myeloid-leukemia-and-myelodysplastic-syndromes
#1
Ya-Zhen Qin, Yan-Huan Zhang, Xiao-Ying Qin, Hong-Hu Zhu
Preferentially expressed antigen of melanoma (PRAME), a tumor-associated antigen, is overexpressed in a variety of hematologic malignancies with a great variation in expression. The majority of patients with acute myeloid leukemia (AML) 1-eight-twenty one (ETO)(+) AML and a certain number of myelodysplastic syndromes (MDS) have an abnormally high increase in PRAME expression level. The landscape of PRAME methylation requires evaluation in order to determine the most relevant sites and the exact association of its methylation with expression level and type of disease...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454450/de-novo-myoepithelial-carcinoma-with-multiple-metastases-arising-from-a-submandibular-salivary-gland-a-case-report
#2
Karina Cecília Panelli Panelli Santos, Hidenobu Matsuzaki, Teruhisa Unetsubo, Shimo Tsuyoshi, Hitoshi Nagatsuka, Jun-Ichi Asaumi
Salivary gland carcinomas are rare tumors, representing ~0.5% of all malignancies. Myoepithelioma is also uncommon, representing ~1% of all salivary gland tumors. Myoepithelial carcinoma (MC) is even rarer, representing 0.2 to 0.6% of all salivary gland tumors. We herein report a case of MC with multiple metastases arising from a submandibular gland in a 71-year-old male patient and present the associated imaging findings. The patient was considered to have a de novo type of myoepithelial carcinoma, which is reportedly associated with higher malignancy than the transformation type of the disease (i...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454425/whole-body-low-dose-computed-tomography-in-multiple-myeloma-staging-superior-diagnostic-performance-in-the-detection-of-bone-lesions-vertebral-compression-fractures-rib-fractures-and-extraskeletal-findings-compared-to-radiography-with-similar-radiation-exposure
#3
Lukas Lambert, Petr Ourednicek, Zuzana Meckova, Giampaolo Gavelli, Jan Straub, Ivan Spicka
The primary objective of the present prospective study was to compare the diagnostic performance of conventional radiography (CR) and whole-body low-dose computed tomography (WBLDCT) with a comparable radiation dose reconstructed using hybrid iterative reconstruction technique, in terms of the detection of bone lesions, skeletal fractures, vertebral compressions and extraskeletal findings. The secondary objective was to evaluate lesion attenuation in relation to its size. A total of 74 patients underwent same-day skeletal survey by CR and WBLDCT...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454368/anti-osteoclastic-agent-denosumab-for-a-giant-cell-tumor-of-the-bone-with-concurrent-paget-s-disease-a-case-report
#4
Takaaki Tanaka, John Slavin, Sue-Anne McLachlan, Peter Choong
Paget's disease of the bone may predispose the development of malignant bone tumors such as osteosarcoma. Giant cell tumor (GCT) as a consequence of Paget's disease is rare. Bone GCT is characterized by rapid growth, the destruction of bone, extension to the surrounding soft tissue and abnormal bone turnover caused by an abnormality of the receptor activator of nuclear factor-κB (RANK)-RANK ligand (RANKL) pathway. Denosumab is a RANK-RANKL inhibitor, which is used to treat osteoporosis and bone GCT. In the current study, a 60-year-old male presented with severe pain located between the right thigh and the knee...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454259/intentional-marginal-resection-of-periosteal-osteosarcoma-in-combination-with-neoadjuvant-chemotherapy-a-report-of-two-cases-and-a-review-of-the-literature
#5
Yu Chen, Song-Feng Xu, Ming Xu, Xiu-Chun Yu
A wide resection of the tumor with or without chemotherapy is the treatment of choice for periosteal osteosarcoma (PO) of the extremities, however, post-operative limb function and quality of life could be compromised. The present study reports two cases of 14-year-old boys who presented with progressively enlarging masses in their right knee regions. Computed tomography and magnetic resonance imaging scans indicated a fusiform space-occupying mass encircling the bone cortex, with stippled calcification. A diagnosis of PO was suspected...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454254/oculomotor-nerve-palsy-as-a-preceding-symptom-of-adult-sporadic-burkitt-lymphoma-a-case-report-and-review-of-the-literature
#6
Yun Liang, Luyin Ding, Xian Li, Weiqin Wang, Xiaohong Zhang
Adult sporadic Burkitt lymphoma (BL) is a rare aggressive neoplasm and represents ~1-5% of all lymphomas diagnosed in adults. The disease exhibits an aggressive clinical manifestation, which frequently involves the central nervous system (CNS) in the early stages, and is usually accompanied by abnormalities in cerebrospinal fluid (CSF) examinations and/or neuroradiography. The current study describes the rare case of a 29-year-old man who presented with oculomotor nerve palsy without palpated masses, B symptoms, peripheral blood anomaly and abnormalities of the nervous system...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454232/philadelphia-chromosome-with-acute-myeloid-leukemia-and-concurrent-large-b-cell-lymphoma-of-different-origins-a-case-report
#7
Yang Dai, Xiao Shuai, Pu Kuang, Lin Wang, Ting Liu, Ting Niu
Philadelphia chromosome with de novo acute myeloid leukemia (Ph + AML) arising from t(9;22) is an uncommon occurrence. Ph + AML is known to respond poorly to conventional chemotherapy. To the best of our knowledge, simultaneous diagnosis of de novo Ph + AML and lymphoma in a single patient has not yet been reported. The present study reports the case of a 37-year-old female patient who presented with bone pain, fever and lymphadenopathy, and was diagnosed as Ph + AML with concurrent diffuse large B cell lymphoma...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453955/acoustic-tweezing-cytometry-enhances-osteogenesis-of-human-mesenchymal-stem-cells-through-cytoskeletal-contractility-and-yap-activation
#8
Xufeng Xue, Xiaowei Hong, Zida Li, Cheri X Deng, Jianping Fu
Human mesenchymal stem cells (hMSCs) have great potential for cell-based therapies for treating degenerative bone diseases. It is known that mechanical cues in the cell microenvironment play an important role in regulating osteogenic (bone) differentiation of hMSCs. However, mechanoregulation of lineage commitment of hMSCs in conventional two-dimensional (2D) monocultures or bioengineered three-dimensional (3D) tissue constructs remains suboptimal due to complex biomaterial design criteria for hMSC culture...
April 22, 2017: Biomaterials
https://www.readbyqxmd.com/read/28453658/androgen-receptor-agonists-increase-lean-mass-improve-cardiopulmonary-functions-and-extend-survival-in-preclinical-models-of-duchenne-muscular-dystrophy
#9
Suriyan Ponnusamy, Ryan D Sullivan, Dahui You, Nadeem Zafar, Chuan He Yang, Thirumagal Thiyagarajan, Daniel L Johnson, Maron L Barrett, Nikki J Koehler, Mayra Star, Erin J Stephenson, Dave Bridges, Stephania A Cormier, Lawrence M Pfeffer, Ramesh Narayanan
Duchenne muscular dystrophy (DMD) is a neuromuscular disease that predominantly affects boys as a result of mutation(s) in the dystrophin gene. DMD is characterized by musculoskeletal and cardiopulmonary complications, resulting in shorter life-span. Boys afflicted by DMD typically exhibit symptoms within 3-5 years of age and declining physical functions before attaining puberty. We hypothesized that rapidly deteriorating health of pre-pubertal boys with DMD could be due to diminished anabolic actions of androgens in muscle, and that intervention with an androgen receptor (AR) agonist will reverse musculoskeletal complications and extend survival...
April 27, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28449267/evaluation-of-the-utility-of-99m-tc-mdp-bone-scintigraphy-versus-mibg-scintigraphy-and-cross-sectional-imaging-for-staging-patients-with-neuroblastoma
#10
Jean-Marc Gauguet, Tamara Pace-Emerson, Frederick D Grant, Suzanne Shusterman, Steven G DuBois, A Lindsay Frazier, Stephan D Voss
PURPOSE: Accurate staging of neuroblastoma requires multiple imaging examinations. The purpose of this study was to determine the relative contribution of (99m) Tc-methylene diphosphonate (MDP) bone scintigraphy (bone scan) versus metaiodobenzylguanidine scintigraphy (MIBG scan) for accurate staging of neuroblastoma. METHODS: A medical record search by the identified patients with neuroblastoma from 1993 to 2012 who underwent both MIBG and bone scan for disease staging...
April 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28449252/serum-phosphorus-levels-and-fracture-following-renal-transplantation
#11
Jasna Aleksova, Phillip Wong, William R Mulley, Kay Weng Choy, Robert McLachlan, Peter R Ebeling, Peter G Kerr, Frances Milat
PURPOSE: Increased fracture rates are observed in renal transplant recipients (RTRs) compared with the general population. Risk factors include age, diabetes, dialysis vintage, immunosuppression, and mineral and bone disorders(1). Low serum phosphorus levels occur post-transplantation; however its relationship with fracture risk has not been evaluated. The purpose of this study was to evaluate risk factors for fracture in RTRs at a single tertiary referral centre. METHODS: A retrospective cross-sectional analysis of 146 patients (75M, 71F) who had been referred for dual energy x-ray densitometry (DXA) post-renal transplantation was performed...
April 27, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28449029/a-genome-wide-association-study-identifies-nucleotide-variants-at-siglec5-and-defa1a3-as-risk-loci-for-periodontitis
#12
Matthias Munz, Christina Willenborg, Gesa M Richter, Yvonne Jockel-Schneider, Christian Graetz, Ingmar Staufenbiel, Jürgen Wellmann, Klaus Berger, Bastian Krone, Per Hoffmann, Nathalie van der Velde, André G Uitterlinden, Lisette C P G M de Groot, Amr Sawalha, Haner Direskeneli, Güher Saruhan-Direskeneli, Esra Guzeldemir-Akcakanat, Gencay Keceli, Matthias Laudes, Barbara Noack, Alexander Teumer, Birte Holtfreter, Thomas Kocher, Peter Eickholz, Jörg Meyle, Christof Doerfer, Corinna Bruckmann, Wolfgang Lieb, Andre Franke, Stefan Schreiber, Rahime M Nohutcu, Jeanette Erdmann, Bruno G Loos, Soeren Jepsen, Henrik Dommisch, Arne S Schaefer
Periodontitis is one of the most common inflammatory diseases, with a prevalence of 11% worldwide for the severe forms and an estimated heritability of 50%. The disease is characterized by destruction of the alveolar bone due to an aberrant host inflammatory response to a dysbiotic oral microbiome. Previous genome-wide association studies (GWAS) have reported several suggestive susceptibility loci. Here, we conducted a GWAS using a German and Dutch case-control sample of aggressive periodontitis (AgP, 896 cases, 7,104 controls), a rare but highly severe and early-onset form of periodontitis, validated the associations in a German sample of severe forms of the more moderate phenotype chronic periodontitis (CP) (993 cases, 1,419 controls)...
April 25, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28448764/mechanistic-insights-into-osteoporosis-in-patients-with-lipodystrophy-and-review-of-the-literature
#13
Lanhui Huang, Hong Shi, Xinli Zhou
OBJECTIVE: To demonstrate the underlying pathogenesis of osteoporosis occurring in patients with lipodystrophy. METHODS: MEDLINE was searched using the following key terms: lipodystrophy, osteoporosis and reduced bone mineral density. Additional studies were obtained from the bibliographies of reports and reviews above by manual search. RESULTS: Lipodystrophy is a very rare disease characterized by pathologic alterations in the distribution of adipose tissues in association with a diverse range of metabolic derangements such as hypertriglyceridemia, insulin resistance, diabetes and abnormal bone formation...
April 27, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28448704/-retrograde-intramedullary-nail-fixation-for-charcot-neuroarthropathy
#14
E López-Gavito, N A Gómez-Fuentes, P Parra-Téllez, M Lezama-Peniche, J Vázquez-Escamilla, S R León-Hernández
Charcot arthropathy is defined as an articular degenerative, chronic, progressive disease that affects one or more peripheral joints, develops as a result of a failure in the normal sensory perception (pain and proprioception) in the innervation of joints located in the foot and ankle, is characterized by destructive bone lesions without the presence of infection. Neuropathy is directly associated with diabetes mellitus type 1 and 2. Surgery is indicated when there is severe involvement of soft tissue, foot joints are unstable, at the presence of chronic or recurrent ulcers or when the foot and ankle can not fit to a normal shoe, and had limitation to perform activities of daily living...
September 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28448615/emphysema-is-associated-with-thoracic-vertebral-bone-attenuation-on-chest-ct-scan-in-hiv-infected-individuals
#15
Alycia Petraglia, Joseph K Leader, Matthew Gingo, Meghan Fitzpatrick, John Ries, Cathy Kessinger, Lorrie Lucht, Danielle Camp, Alison Morris, Jessica Bon
BACKGROUND: Age-related chronic diseases are prevalent in HIV-infected persons in the antiretroviral therapy (ART) era. Bone mineral density (BMD) loss and emphysema have separately been shown to occur at a younger age and with lesser risk exposure in HIV-infected compared to HIV-uninfected individuals. In non-HIV infected smokers, emphysema has been shown to independently predict low BMD. We hypothesized that emphysema would independently associate with thoracic vertebral bone attenuation, a surrogate for bone mineral density, in HIV-infected individuals...
2017: PloS One
https://www.readbyqxmd.com/read/28448457/effects-of-vitamin-d-supplementation-on-bone-turnover-markers-a-randomized-controlled-trial
#16
Verena Schwetz, Christian Trummer, Marlene Pandis, Martin R Grübler, Nicolas Verheyen, Martin Gaksch, Armin Zittermann, Winfried März, Felix Aberer, Angelika Lang, Gerlies Treiber, Claudia Friedl, Barbara Obermayer-Pietsch, Thomas R Pieber, Andreas Tomaschitz, Stefan Pilz
Bone turnover markers (BTMs) are used to evaluate bone health together with bone mineral density and fracture assessment. Vitamin D supplementation is widely used to prevent and treat musculoskeletal diseases but existing data on vitamin D effects on markers of bone resorption and formation are inconsistent. We therefore examined the effects of vitamin D supplementation on bone-specific alkaline phosphatase (bALP), osteocalcin (OC), C-terminal telopeptide (CTX), and procollagen type 1 N-terminal propeptide (P1NP)...
April 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28447889/bone-marrow-as-a-hematopoietic-stem-cell-source-for-gene-therapy-in-sickle-cell-disease-scd-evidence-from-rhesus-and-scd-patients
#17
Naoya Uchida, Atsushi Fujita, Matthew M Hsieh, Aylin Bonifacino, Allen E Krouse, Mark E Metzger, Robert E Donahue, John F Tisdale
Steady state bone marrow (BM) is the preferred hematopoietic stem cell (HSC) source for gene therapy in sickle cell disease (SCD) due to the recognized risk of vaso-occlusive crisis during granulocyte colony-stimulating factor mobilization. We previously established clinically relevant HSC gene transfer in the rhesus model following transplantation of mobilized peripheral blood (PB) CD34+ cells transduced with lentiviral vectors. In this study, we examined steady state bone marrow (BM) in the rhesus competitive repopulation model and demonstrate similar gene marking in vitro and in vivo, as compared to mobilized PB CD34+ cells...
April 27, 2017: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/28447876/intrinsic-mesenchymal-stem-cell-dysfunction-in-diabetes-mellitus-implications-for-autologous-cell-therapy
#18
Mari van de Vyver
Mesenchymal stem cells derived from bone marrow (BM-MSCs) have multi-functional properties that have made them a promising therapeutic agent for many regenerative, anti-inflammatory, and auto-immune applications. Under chronic pathological conditions, however, BM-MSCs can become functionally compromised due to long term exposure to changes in the systemic and localized stem cell niche micro-environments. In addition to the fact that functionally compromised BM-MSCs may be therapeutically ineffective, the impairment of BM-MSCs is potentially a contributing factor to disease progression and the development of co-morbidities...
April 27, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28447734/high-glucose-promotes-the-osteogenic-differentiation-capability-of-human-periodontal-ligament-fibroblasts
#19
Sujiwan Seubbuk, Hathaitip Sritanaudomchai, Julalux Kasetsuwan, Rudee Surarit
Periodontal ligament fibroblasts (PDLFs) are important cells, which are involved in maintaining tooth integrity. Diabetes has been found to be associated with periodontal disease in a bidirectional manner. The aim of the present study was to investigate the stemness properties of human PDLFs (HPDLFs) in high glucose conditions. HPDLFs were analyzed for their osteogenic differentiation capacity by inducing the cells with osteogenic medium in various glucose concentrations. The gene expression was then examined using reverse transcription‑quantitative polymerase chain reaction analysis, and examinations of alkaline phosphatase activity and nodule formation were performed...
March 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447503/1-6-o-o-diacetylbritannilactone-suppresses-activation-of-mast-cell-and-airway-hyper-responsiveness
#20
Meihua Jin, Sungun Kim, Nan Qin, Xi Chen, Ning Ji, Sheng-An Tang, Dexin Kong, Eunkyung Lee, Hongquan Duan
Mast cells play critical roles in allergic disorders such as atopic dermatitis and allergic asthma. The aim of this study was to investigate the anti-inflammatory and anti-asthmatic activities of 1,6-O,O-diacetylbritannilactone (OODBL) isolated from Inula japonica Thunb. (I. japonica) in a murine asthma model and bone marrow-derived mast cells (BMMCs). In an ovalbumin-induced asthma model, OODBL administration attenuated the airway hyper-responsiveness induced by aerosolized methacholine and serum IgE level in asthmatic mice...
April 27, 2017: Immunopharmacology and Immunotoxicology
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