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https://www.readbyqxmd.com/read/28340240/osteonecrosis-splenic-calcification-sickle-cell-disease
#1
A K Pannu, A Lakshman, V Damaraju, S Jain, S C Varma
Sickle cell disease (SCD) is a major public health problem. Approximately 300,000 children born annually with the disease. SCD is a chronic condition, and spleen and bone are two commonly affected organs. We recently had the opportunity of observing a girl with deformed femoral head and calcified lesions in spleen, who was initially diagnosed as disseminated tuberculosis, but later a diagnosis of SCD was made on detailed hematological investigations and advanced imaging techniques.
March 11, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28340217/establishment-of-reference-interval-for-alkaline-phosphatase-in-healthy-children-of-various-ethnicities-aged-0-12-years
#2
Gu Wanjian, Hu Jie, Ge Liang, Wang Cheng, Xu Tian, Shen Jianjiang, Zhang Chunni
Background: To establish a reference interval of alkaline phosphatase for healthy children of various ethnicities, aged 0 years to 12 years in China. Methods: According to the Clinical and Laboratory Standards Institute guideline C28-A3, blood specimens were collected in the morning after overnight fasting from 502 healthy children to determine the alkaline phosphatase (ALP) level, using the Beckman AU5800 automatic biochemical analyzer. Children were grouped by sex and age...
March 18, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/28339949/bone-biopsy-practice-patterns-across-europe-the-european-renal-osteodystrophy-initiative-a-position-paper
#3
Pieter Evenepoel, Patrick D'Haese, Justine Bacchetta, Jorge Cannata-Andia, Anibal Ferreira, Mathias Haarhaus, Sandro Mazzaferro, Marie-Helene Lafage Proust, Syazrah Salam, Goce Spasovski, Mario Cozzolino
Renal osteodystrophy (ROD) is a heterogeneous group of metabolic bone diseases complicating progressive chronic kidney disease (CKD). Bone biomarkers and bone imaging techniques may help to assess bone health and predict fractures in CKD but do have important inherent limitations. By informing on bone turnover and mineralization, a bone biopsy may help to guide prevention and treatment of ROD and its consequences. According to a recent survey conducted among European nephrologists, bone biopsies are performed rather exceptionally, both for clinical and research purposes...
March 3, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339837/vitamin-d-treatment-attenuates-cardiac-fgf23-fgfr4-signaling-and-hypertrophy-in-uremic-rats
#4
Maren Leifheit-Nestler, Alexander Grabner, Laura Hermann, Beatrice Richter, Karin Schmitz, Dagmar-Christiane Fischer, Christopher Yanucil, Christian Faul, Dieter Haffner
Background.: Vitamin D deficiency and excess of circulating fibroblast growth factor 23 (FGF23) contribute to cardiovascular mortality in patients with chronic kidney disease (CKD). FGF23 activates FGF receptor 4 and (FGFR4) calcineurin/nuclear factor of activated T cells (NFAT) signaling in cardiac myocytes, thereby causing left ventricular hypertrophy (LVH). Here, we determined if 1,25-dihydroxyvitamin D (calcitriol) inhibits FGF23-induced cardiac signaling and LVH. Methods...
February 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339664/adult-paget-s-disease-of-bone-a-review
#5
Stephen Paul Tuck, Robert Layfield, Julie Walker, Babitha Mekkayil, Roger Francis
Adult PD of bone is the second commonest metabolic bone condition after osteoporosis. The condition is characterized by increased bone cell activity, with bone-resorbing osteoclasts often larger and containing more nuclei than normal, and osteoblasts producing increased amounts of disorganized bone. This leads to expanded bone of poor quality possessing both sclerotic and lytic areas. PD of bone has a strong genetic element, with a family history being noted in 10-20% of cases. A number of genetic defects have been found to be associated with the condition...
February 17, 2017: Rheumatology
https://www.readbyqxmd.com/read/28339366/jaccoud-s-arthropathy-in-systemic-lupus-erythematosus-clinical-laboratory-and-ultrasonographic-features
#6
Fulvia Ceccarelli, Laura Massaro, Carlo Perricone, Monica Pendolino, Enrica Cipriano, Simona Truglia, Francesca Miranda, Francesca Romana Spinelli, Cristiano Alessandri, Guido Valesini, Fabrizio Conti
OBJECTIVES: Jaccoud's arthropathy (JA) is a deforming, non-erosive arthritis, occurring in 2-35% of systemic lupus erythematosus (SLE) patients. We aimed to evaluate JA patients in a wide monocentric SLE cohort in terms of clinical, serological and ultrasonographic features. METHODS: Consecutive SLE patients (ACR criteria 1997) were evaluated. The JA index was applied for patients with reducible deformities. Patients with a JA index ≥5 underwent physical examination, blood testing and ultrasound (US) assessment...
March 23, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28339363/proangiogenic-gene-polymorphisms-are-associated-with-susceptibility-to-paget-s-disease-of-bone-and-with-its-clinical-features
#7
Ismael Calero-Paniagua, Ricardo Usategui-Martín, Luís Corral-Gudino, Judit García-Aparicio, Javier Del Pino-Montes, Rogelio González-Sarmiento
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March 23, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28334434/withdrawn-nutrition-support-for-bone-marrow-transplant-patients
#8
REVIEW
Susan M Murray, Sima Pindoria
BACKGROUND: This is an update of the original Cochrane review published in Issue 2, 2002. Bone marrow transplantation involves administration of toxic chemotherapy and infusion of marrow cells. After treatment, patients can develop poor appetite, mucositis and gastrointestinal failure, leading to malnutrition. To prevent this, parenteral nutrition (PN) support is often first choice but is associated with increased risk of infection. Enteral nutrition (EN) is an alternative, as is addition of substrates...
March 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28334220/effect-of-vitamin-d-deficiency-in-developed-countries
#9
Zaki K Hassan-Smith, Martin Hewison, Neil J Gittoes
Introduction: Vitamin D deficiency is common worldwide with adverse effects on skeletal health. In recent years, there has been great interest in non-classical actions of vitamin D. Basic research has uncovered actions in a range of non-skeletal tissues, and observational studies have identified inverse relationships with risk of a number of disease states including sarcopenia, obesity, the metabolic syndrome, cardiovascular disease, cancer and autoimmune diseases. Sources of data: PubMed, Medline and Cochrane Systematic Reviews...
March 9, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/28334010/automated-assessment-of-bone-changes-in-cross-sectional-micro-ct-studies-of-murine-experimental-osteoarthritis
#10
Patricia Das Neves Borges, Tonia L Vincent, Massimo Marenzana
OBJECTIVE: The degradation of articular cartilage, which characterises osteoarthritis (OA), is usually paired with excessive bone remodelling, including subchondral bone sclerosis, cysts, and osteophyte formation. Experimental models of OA are widely used to investigate pathogenesis, yet few validated methodologies for assessing periarticular bone morphology exist and quantitative measurements are limited by manual segmentation of micro-CT scans. The aim of this work was to chart the temporal changes in periarticular bone in murine OA by novel, automated micro-CT methods...
2017: PloS One
https://www.readbyqxmd.com/read/28333899/-stem-progenitor-cells-in-diseases-of-the-respiratory-tract
#11
EDITORIAL
Tadeusz Płusa
Stem cells (SCs - stem cells) are characterized by plasticity and the ability to differentiate into other cell types. They are obtained from bone marrow, peripheral blood and cord blood. Mesenchymal stem cells (MSCs) shows a broad immunomodulating, increases the number of regulatory T cells (Treg), modifies the activity of T cells, dendritic cells and NK (natural killer). Direct impact on reducing the release of proinflammatory cytokines and increased release of proinflammatory cytokines. Within the respiratory tract has a number of resident stem and progenitor cells referred to as L-MSCs (lung mesenchymal stem cells) whose presence was confirmed by markers as defined in the trachea, epithelial cells and alveolar...
March 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28333846/prognostic-value-of-fluorine-18-fluorodeoxyglucose-uptake-of-bone-marrow-on-positron-emission-tomography-computed-tomography-for-prediction-of-disease-progression-in-cervical-cancer
#12
Jeong Won Lee, Seob Jeon, Seong Taek Mun, Sang Mi Lee
OBJECTIVE: This study aimed to evaluate the prognostic value of fluorine-18 fluorodeoxyglucose (FDG) uptake of bone marrow (BM) on positron emission tomography (PET)/computed tomography in patients with uterine cervical cancer. METHODS: One hundred forty-five patients with cervical cancer who underwent staging FDG PET/computed tomography and subsequent surgical resection or chemoradiotherapy were retrospectively enrolled in the study. Mean BM FDG uptake (BM standardized uptake value [SUV]) and BM-to-liver uptake ratio of FDG uptake (BLR) were measured...
March 23, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28333839/evidence-for-increased-response-to-induced-endoplasmic-reticulum-stress-in-myeloid-cells-in-acquired-aplastic-anemia
#13
Alpa Sidhu, Michael U Callaghan, Manisha S Gadgeel, Steven A Buck, Andrew M Fribley, Süreyya Savaşan
Autoimmune response targeting the hematopoietic stem cells highlights the current understanding of acquired aplastic anemia (AAA) pathogenesis. Upregulation of the unfolded protein response is the cell's rejoinder to a variety of stresses, which either result in restoring homeostasis or cell death by increased expression of the transcription factor C/EBP homologous protein. We hypothesized that there is an inherent increased sensitivity to various cellular stressors, including the ones that target endoplasmic reticulum (ER) in AAA leading to a decreased proliferation and potentially contributing to susceptibility to autologous cytotoxicity...
April 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28333776/transcanal-endoscopic-ear-surgery-for-middle-ear-cholesteatoma
#14
Eran Glikson, Ruth Yousovich, Jobran Mansour, Michael Wolf, Lela Migirov, Yisgav Shapira
OBJECTIVE: To evaluate the clinical parameters, outcomes, and complications of transcanal endoscopic ear surgeries for middle ear cholesteatoma. STUDY DESIGN: Retrospective study. SETTING: Tertiary university-affiliated medical center. PATIENTS: Adult patients (age >18) who underwent transcanal endoscopic ear surgeries for cholesteatoma, between March 2009 and March 2015. INTERVENTION: Transcanal endoscopic surgery was indicated when the cholesteatoma did not extend posterior to the anterior limb of the lateral semicircular canal...
March 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28333548/utility-of-pet-ct-after-cryoablation-for-early-identification-of-local-tumor-progression-in-osseous-metastatic-disease
#15
Ann T Packard, Stephen M Broski, Matthew R Callstrom, Thomas D Atwell, Grant D Schmit, John J Schmitz, Jonathan M Morris, Christopher H Hunt, A Nicholas Kurup
OBJECTIVE: The purpose of this study is to evaluate the utility of combined PET/CT for the detection of early local tumor progression after cryoablation of bone metastases. MATERIALS AND METHODS: A retrospective single-institution review revealed 61 consecutive patients with 80 separate bone metastases treated with cryoablation who were evaluated with a preablation PET/CT and at least two postablation PET/CT examinations between September 2007 and July 2015. Patients were excluded if they had local therapy or pathologic fracture after ablation...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28333544/joint-fluid-bone-marrow-edemalike-changes-and-ganglion-cysts-in-the-pediatric-wrist-features-that-may-mimic-pathologic-abnormalities-follow-up-of-a-healthy-cohort
#16
Derk F M Avenarius, Lil-Sofie Ording Müller, Karen Rosendahl
OBJECTIVE: The presence of findings at wrist MRI that may mimic disease is a diagnostic problem. The purpose of this study is to examine the occurrence of bone marrow changes resembling edema, joint fluid, and ganglion cysts over time, in a cohort of healthy children. MATERIALS AND METHODS: Seventy-four of 89 healthy children included in a study of normal MRI findings of the wrists were reexamined after a period of 4 years, using the same 1.5-T MRI technique-namely, a coronal T1-weighted and a T2-weighted fat-saturated sequence...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28333411/utility-of-peripheral-blood-immunophenotyping-by-flow-cytometry-in-the-diagnosis-of-pediatric-acute-leukemia
#17
Laura K Metrock, Ryan J Summers, Sunita Park, Scott Gillespie, Sharon Castellino, Glen Lew, Frank G Keller
BACKGROUND: Childhood acute leukemia is traditionally diagnosed from a bone marrow aspirate (BMA). New-onset acute leukemia patients do not always have visible circulating blasts in the peripheral blood (PB) at diagnosis. While the role of bone marrow flow cytometry for the diagnosis of acute leukemia is well established, the utility of PB flow cytometry (PBFC) is unknown. We performed a single-institution retrospective analysis to compare PBFC versus BMA in establishing or excluding a diagnosis of childhood acute leukemia...
March 23, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28332991/accelerated-total-lymphoid-irradiation-containing-salvage-regimen-for-patients-with-refractory-and-relapsed-hodgkin-lymphoma-20%C3%A2-years-of-experience
#18
Andreas Rimner, Shona Lovie, Meier Hsu, Monica Chelius, Zhigang Zhang, Karen Chau, Alison J Moskowitz, Matthew Matasar, Craig H Moskowitz, Joachim Yahalom
PURPOSE: We report the long-term results of integrated accelerated involved field radiation therapy (IFRT) followed by total lymphoid irradiation (TLI) as part of the high-dose salvage regimen followed by autologous bone marrow transplantation or autologous stem cell transplantation in patients with relapsed or refractory Hodgkin lymphoma (HL). METHODS AND MATERIALS: From November 1985 to July 2008, 186 previously unirradiated patients with relapsed or refractory HL underwent salvage therapy on 4 consecutive institutional review board-approved protocols...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28332708/dual-specificity-tyrosine-phosphorylation-regulated-kinase-2-regulates-osteoclast-fusion-in-a-cell-heterotypic-manner
#19
Gali Guterman-Ram, Milena Pesic, Ayelet Orenbuch, Tal Czeiger, Anastasia Aflalo, Noam Levaot
Monocyte fusion into osteoclasts, bone resorbing cells, plays a key role in bone remodeling and homeostasis; therefore, aberrant cell fusion may be involved in a variety of debilitating bone diseases. Research in the last decade has led to the discovery of genes that regulate osteoclast fusion, but the basic molecular and cellular regulatory mechanisms underlying the fusion process are not completely understood. Here, we reveal a role for Dyrk2 in osteoclast fusion. We demonstrate that Dyrk2 down regulation promotes osteoclast fusion, whereas its overexpression inhibits fusion...
March 23, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28332482/development-of-novel-silk-fibroin-polyvinyl-alcohol-sol-gel-bioactive-glass-composite-matrix-by-modified-layer-by-layer-electrospinning-method-for-bone-tissue-construct-generation
#20
B N Singh, K Pramanik
The worldwide occurrence of bone tissue related defects as well as diseases and lack of successful perpetual cure has attracted attention and accelerated exploration of composite scaffolding material with superior bioactivity, osteoinductivity and osteoconductivity properties. Among such biomaterials, silk fibroin and bioglass composite attained special emphasis to develop tissue engineered construct with a hierarchical structure ranging from nano to microscale thereby mimicking bone tissue extracellular matrix...
March 23, 2017: Biofabrication
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