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Bone marrow

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https://www.readbyqxmd.com/read/28650886/elevated-fdg-activity-in-the-nonpneumatized-sphenoid-bone-in-an-infant
#1
Yin Jie Chen, Nelleke Tolboom, Lisa J States, Hongming Zhuang
A 7-month-old boy with malignant rhabdoid tumor of the right lateral neck, status post resection and chemotherapy, underwent FDG PET/CT for restaging. The images showed diffuse increased activity in the spleen and in the bone marrow of the appendicular bones and the spine, which is related to hematopoietin administered after chemotherapy. The images also revealed intense activity in the region of sphenoid bone, which is not a common region to have elevated FDG activity. The subsequent MRI scan showed that this activity was due to not-yet-converted red marrow in the sphenoid bone in this pediatric patient...
June 24, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28650455/clinical-impact-of-nk-cell-reconstitution-after-reduced-intensity-conditioned-unrelated-cord-blood-transplantation-in-patients-with-acute-myeloid-leukemia-analysis-of-a-prospective-phase-ii-multicenter-trial-on-behalf-of-the-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-greffe-de
#2
S Nguyen, A Achour, L Souchet, S Vigouroux, P Chevallier, S Furst, A Sirvent, J-O Bay, G Socié, P Ceballos, A Huynh, J Cornillon, S Francois, F Legrand, I Yakoub-Agha, G Michel, N Maillard, G Margueritte, S Maury, M Uzunov, C-E Bulabois, M Michallet, L Clement, C Dauriac, K Bilger, J Lejeune, V Béziat, V Rocha, B Rio, S Chevret, V Vieillard
Unrelated cord blood transplantation (UCBT) after a reduced intensity conditioning regimen (RIC) has extended the use of UCB in elderly patients and those with co-morbidities without an HLA-identical donor, although post-transplant relapse remains a concern in high-risk acute myeloid leukemia (AML) patients. HLA incompatibilities between donor and recipient might enhance the alloreactivity of natural killer (NK) cells after allogeneic hematopoietic stem-cell transplantation (HSCT). We studied the reconstitution of NK cells and KIR-L mismatch in 54 patients who underwent a RIC-UCBT for AML in CR in a prospective phase II clinical trial...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650454/analysis-of-hematopoietic-recovery-after-autologous-transplantation-as-method-of-quality-control-for-long-term-progenitor-cell-cryopreservation
#3
J Pavlů, H W Auner, R M Szydlo, B Sevillano, R Palani, F O'Boyle, A Chaidos, C Jakob, E Kanfer, D MacDonald, D Milojkovic, A Rahemtulla, A Bradshaw, E Olavarria, J F Apperley, O M Pello
Hematopoietic precursor cells (HPC) are able to restore hematopoiesis after high-dose chemotherapy and their cryopreservation is routinely employed prior to the autologous hematopoietic cell transplantation (AHCT). Although previous studies showed feasibility of long-term HPC storage, concerns remain about possible negative effects on their potency. To study the effects of long-term cryopreservation, we compared time to neutrophil and platelet recovery in 50 patients receiving two AHCT for multiple myeloma at least 2 years apart between 2006 and 2016, using HPC obtained from one mobilization and collection attempt before the first transplant...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650453/regional-intra-arterial-steroid-treatment-in-120-patients-with-steroid-resistant-or-dependent-gvhd
#4
M Y Shapira, A Klimov, S Vipul, S Grisariu, B R Avni, R Or, A I Bloom
GvHD results in death in the majority of steroid-resistant patients. This report assesses the safety and efficacy of two regional intra-arterial steroid (IAS) treatment protocols in the largest published cohort of patients with resistant/dependent hepatic and/or gastrointestinal GvHD, as well as identification of predictors of response to IAS and survival. One hundred and twenty patients with hepatic, gastrointestinal GvHD or both were given IAS. Gastrointestinal initial response (IR) and complete response (CR) were documented in 67...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650451/inability-to-work-and-need-for-disability-pension-among-long-term-survivors-of-hematopoietic-stem-cell-transplantation
#5
A Tichelli, S Gerull, A Holbro, A Buser, G Nair, M Medinger, D Heim, J P Halter, J R Passweg
Return to work is critical goal following HSCT. However, late effects may impede return to normal activity after HSCT. In the case of inability to work, patients may need a work disability pension to ensure a reasonable livelihood. This study evaluated inability to work and need for disability pension among long-term survivors and analyzed possible determinants of need for social support. This retrospective, single-center study included all HSCT patients surviving ⩾5 years seen at the outpatient clinic between January 2013 and August 2015...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650450/endothelial-damage-is-aggravated-in-acute-gvhd-and-could-predict-its-development
#6
E Mir, M Palomo, M Rovira, A Pereira, G Escolar, O Penack, E Holler, E Carreras, M Diaz-Ricart
The aim of the present study was to explore whether there is enhanced endothelial dysfunction in patients developing acute GvHD (aGvHD) after allogeneic hematopoietic cell transplantation (allo-HCT) and to identify biomarkers with predictive and/or diagnostic value. In in vitro experiments, endothelial cells (ECs) were exposed to serum from patients with (aGvHD, n=31) and without (NoGvHD, n=13) aGvHD, to evaluate changes in surface adhesion receptors, the reactivity of the extracellular matrix by measuring the presence of Von Willebrand factor (VWF) and platelet adhesion, and the activation of intracellular signaling proteins...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650449/parent-versus-child-donor-perceptions-of-the-bone-marrow-donation-experience
#7
G E Switzer, J Bruce, G Pastorek, D M Kiefer, H Kobusingye, R Drexler, R A M Besser, D L Confer, M M Horowitz, R J King, B E Shaw, S M van Walraven, L Wiener, W Packman, J W Varni, M A Pulsipher
No abstract text is available yet for this article.
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650448/transplant-associated-thrombotic-microangiopathy-is-an-endothelial-complication-associated-with-refractoriness-of-acute-gvhd
#8
M Zeisbrich, N Becker, A Benner, A Radujkovic, K Schmitt, J Beimler, A D Ho, M Zeier, P Dreger, T Luft
There is increasing evidence that endothelial dysfunction is involved in refractoriness of acute GvHD (aGvHD). Here we investigated the hypothesis that another endothelial complication, transplant-associated thrombotic microangiopathy (TMA), contributes to the pathogenesis of aGvHD refractoriness. TMA was retrospectively assessed in 771 patients after allogeneic stem cell transplantation (alloSCT). Incidences of TMA and refractory aGvHD were correlated with biomarkers of endothelial damage obtained before alloSCT for patients receiving or not receiving statin-based endothelial prophylaxis (SEP)...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650243/antigenicity-of-mesenchymal-stem-cells-in-an-inflamed-joint-environment
#9
Jacqueline A Hill, Jennifer M Cassano, Margaret B Goodale, Lisa A Fortier
OBJECTIVE To determine whether major histocompatability complex (MHC) class II expression in equine mesenchymal stem cells (MSCs) changes with exposure to a proinflammatory environment reflective of an inflamed joint. SAMPLE Cryopreserved bone marrow-derived MSCs from 12 horses and cartilage and synovium samples from 1 horse euthanized for reasons other than lameness. PROCEDURES In part 1 of a 3-part study, the suitability of a quantitative reverse transcriptase PCR (qRT-PCR) assay for measurement of MHC class II expression in MSCs following stimulation with interferon (IFN)-γ was assessed...
July 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28650109/inducible-activation-of-fgfr2-in-adult-mice-promotes-bone-formation-after-bone-marrow-ablation
#10
Wei Xu, Fengtao Luo, Quan Wang, Qiaoyan Tan, Junlan Huang, Siru Zhou, Zuqiang Wang, Xianding Sun, Liang Kuang, Min Jin, Nan Su, Wanling Jiang, Liang Chen, Huabing Qi, Ying Zhu, Bo Chen, Hangang Chen, Shuai Chen, Yu Gao, Xiaoling Xu, Chuxia Deng, Lin Chen, Yangli Xie, Xiaolan Du
Apert syndrome is one of the most severe craniosynostoses, resulting from gain-of-function mutations in fibroblast growth factor receptor 2 (FGFR2). Previous studies have shown that gain-of-function mutations of FGFR2 (S252W or P253R) cause skull malformation of human Apert syndrome by affecting both chondrogenesis and osteogenesis, underscoring the key role of FGFR2 in bone development. However, the effects of FGFR2 on bone formation at the adult stage have not been fully investigated. To investigate the role of FGFR2 in bone formation, we generated mice with tamoxifen-inducible expression of mutant FGFR2 (P253R) at the adult stage...
June 26, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28649877/retrospective-cohort-study-and-biobanking-of-patients-treated-for-hemangioma-in-childhood-telomeres-as-biomarker-of-aging-and-radiation-exposure
#11
Monika Frenzel, Michelle Ricoul, Mohamed Amine Benadjaoud, Marion Bellamy, Aude Lenain, Nadia Haddy, Ibrahima Diallo, Christine Mateus, Florent de Vathaire, Laure Sabatier
PURPOSE: Cohorts allowing joint epidemiological and biological analyses are essential for radiation risk assessment. The French Hemangioma Cohort (FHC), studied within the European project EpiRadBio, is one of the rare cohorts suitable for studying the effect of low dose radiation exposure (<100 mGy at organs), with a long-term follow-up. This highly homogeneous cohort consists of healthy individuals belonging to a normal population, except for the presence of skin hemangioma (age at exposure: between 6 months and 3 years of age)...
June 26, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28649856/the-efficacy-of-inactivated-escherichia-coli-autovaccines-against-the-e-coli-peritonitis-syndrome-in-layers
#12
W J M Landman, J H H van Eck
Autogenous Escherichia coli vaccines to prevent the E. coli peritonitis syndrome (EPS) in laying hens are often used in the field, although their effectiveness has not been demonstrated yet. Therefore, in this study, which consisted of two experiments, their efficacy was assessed. In the first experiment, the EPS inducing ability of three E. coli isolates originating from bone marrow of hens that died due to EPS and with different Pulsed-Field Gel Electrophoresis patterns, was examined by intravenous inoculation of the isolates in 17 week-old brown layers...
June 26, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28649784/allogeneic-hematopoietic-stem-cell-transplantation-in-congenital-disorders-a-single-center-experience
#13
Maura Faraci, Stefano Giardino, Francesca Bagnasco, Giuseppe Morreale, M Paola Terranova, Daniela Di Martino, Edoardo Lanino
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the treatment of choice for a variety of congenital disorders. We report the experience of children affected by congenital diseases other than bone marrow failure syndromes who received allo-HSCT over a period of 25 years at G. Gaslini Paediatric Research Institute. HSCTs were performed in 57 children with congenital diseases (25 with congenital immunodeficiencies, 10 with severe combined immunodeficiencies, and 22 with metabolic diseases). Overall survival rate at 3 years in the whole group of patients was 76...
June 26, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28648976/synergistic-combination-of-murine-bone-marrow-derived-dendritic-cells-loaded-ex-vivo-with-whole-tumor-lysate-and-systemic-chemotherapy-mediates-antitumor-immune-responses-in-vivo
#14
Mohamed L Salem, Mohamed Nassef, Soha Gomaa, Ibrahim Essa
In order to get mature dendritic cells (DC) that is a crucial prerequisite for success in tumor immunotherapy protocols. Herein, we assumed that administration of murine bone marrow (BM)-derived DC (BM-DC), loaded ex vivo with whole Ehrlich ascites carcinoma (EAC) lysate, in the context of systemic chemotherapy cyclophosphamide (CTX) to induce antitumor immune responses, may be a good strategy to improve the presentation of tumor-specific antigens to the immune system. In the first series of experiments, BM cells generated either from BM of naïve mice or from BM of EAC-bearing mice were cultured in the presence of GM-CSF and IL-4 for 6days...
June 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28648946/end-of-therapy-minimal-residual-disease-mrd-measurement-in-children-with-all-does-not-predict-relapse
#15
Tahani Hani Sarrawi, Ismael Zayyat, Fareed Barakat, Maha Rezeq, Salam Abu Jmaian, Faris Madanat
Minimal residual disease (MRD) monitoring opened a new era for childhood acute lymphoblastic leukemia (ALL), and is widely used for risk adapted therapy in the major study groups (Borowitz et al. 2015; Eckert et al., 2015; Peregud-Pogorzelsk et al., 2003). MRD is measured either by polymerase chain reaction (PCR) or flow cytometry (FCM) (Campana, 2009). Most studies have concentrated on measuring MRD during or at end of induction, and after consolidation therapy, to stratify patients and to predict relapse (Sutton et al...
June 17, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28648877/a-rare-presentation-a-case-report-of-osseous-metaplasia-and-mature-bone-formation-in-a-follicular-adenoma-of-the-thyroid
#16
Nadia Aurora, Insia Hashmi, Subhasis Misra, Nail Aydin
INTRODUCTION: Cases of multinodular goiter, thyroid hyperplasia, follicular adenoma, papillary thyroid carcinoma, and anaplastic thyroid carcinoma have been reported with histopathologic findings of osseous metaplasia (OM), bone marrow metaplasia (BMM), ectopic bone formation (EBF), ossification, and extramedullary hematopoiesis (EMH). To date no report of a follicular adenoma with OM and mature EBF in the absence of EMH has been reported in the English language. PRESENTATION OF CASE: 63-year-old woman with an incidental finding of thyroid nodule unable to be biopsied...
June 17, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28648657/reproduction-of-the-atopic-march-in-an-adult-after-allogeneic-bone-marrow-transplantation-from-an-atopic-sibling
#17
Milagros Lázaro, Lourdes Vázquez, Francisco Javier Munoz-Bellido, Maria Teresa Gracia, Sonia Arriba-Mendez, Ignacio Dávila
No abstract text is available yet for this article.
June 22, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28648578/application-of-aptamers-in-treatment-and-diagnosis-of-leukemia
#18
REVIEW
Rezvan Yazdian-Robati, Atefeh Arab, Mohammad Ramezani, Khalil Abnous, Seyed Mohammad Taghdisi
Leukemia is a cancer of blood cells and bone marrow, leading to death in many patients mainly in children. Over the last several years, aptamers generated by SELEX (Systematic evolution of ligands by exponential enrichment) method, have quickly become a new class of targeting ligands for drug delivery applications and recently have been widely exploited in different biomedical applications, due to several potent properties such as high binding affinity and selectivity, low or no immunogenicity and toxicity, low cost and thermal stability...
June 22, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28648154/-the-cause-of-cytopenia-of-undetermined-significance-can-often-be-found-by-using-next-generation-sequencing
#19
Jakob Werner Hansen, Simon Husby, Kirsten Grønbæk
Patients with persistent cytopenia are frequently referred to the haematological departments , and a diagnosis of myelodysplastic syndrome is often suspected. After routine assessment including a broad range of blood tests, bone marrow biopsy, and cytogenetics, a definite diagnosis can still not be found for some patients, although they have symptomatic cytopenia. In these cases, next generation sequencing is a valuable supplement in identifying patients with early stages of myeloid cancer.
June 19, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28647921/proteome-profile-of-aspergillus-terreus-conidia-at-germinating-stage-identification-of-probable-virulent-factors-and-enzymes-from-mycotoxin-pathways
#20
Raman Thakur, Jata Shankar
Aspergillus terreus is an emerging opportunistic fungal pathogen that causes invasive aspergillosis in immunocompromised individuals. The main risk group of individuals for this organism is leukopenic patients, individuals having cancers, bone marrow transplant persons and those who have immunological disorders. The lack of early diagnostic marker for A. terreus and intrinsic resistance to Amphotericin B, further limits the successful therapy of A. terreus-associated infections. The germination of inhaled conidia is the key step to establish successful invasion in host tissues or organs...
June 24, 2017: Mycopathologia
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