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Jakob R Passweg, Helen Baldomero, Peter Bader, Grzegorz W Basak, Chiara Bonini, Rafael Duarte, Carlo Dufour, Nicolaus Kröger, Jürgen Kuball, Arjan Lankester, Silvia Montoto, Arnon Nagler, John A Snowden, Jan Styczynski, Mohamad Mohty
Hematopoietic cell transplantation (HCT) is an established procedure for acquired and congenital disorders of the hematopoietic system. In 2016, there was a tendency for continued activity in this field with 43,636 HCT in 39,313 patients [16,507 allogeneic (42%), 22,806 autologous (58%)] reported by 679 centers in 49 countries in 2016. The main indications were myeloid malignancies 9547 (24%; 96% allogeneic), lymphoid malignancies 25,618 (65%; 20% allogeneic), solid tumors 1516 (4%; 2% allogeneic), and non-malignant disorders 2459 (6%; 85% allogeneic)...
March 14, 2018: Bone Marrow Transplantation
Hui Y Lim, Cheryl Ng, Joseph Rigano, Mark Tacey, Geoffrey Donnan, Harshal Nandurkar, Prahlad Ho
: Myeloproliferative neoplasms (MPN) are independent risks for thrombotic events. Routine laboratory tests are inadequate to evaluate the underlying procoagulant state. Global coagulation assays such as thromboelastography, thrombin and fibrin generation may provide better assessment of coagulation activation and thereby of thrombosis risk. Participants with MPN were recruited. Thromboelastography was performed on citrated whole blood while thrombin generation using calibrated automated thrombogram, fibrin generation using overall haemostatic potential assays and P-selectin were quantified on platelet-poor plasma...
March 13, 2018: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
Anna Ravn Landtblom, Hannah Bower, Therese M-L Andersson, Paul W Dickman, Jan Samuelsson, Magnus Björkholm, Sigurdur Yngvi Kristinsson, Malin Hultcrantz
To determine the risk of a wide range of second malignancies in patients with myeloproliferative neoplasms (MPNs), we conducted a large population-based study and compared the results to matched controls. From national Swedish registers, 9379 patients with MPNs diagnosed between 1973 and 2009, and 35,682 matched controls were identified as well as information on second malignancies, with follow-up until 2010. Hazard ratios (HRs) with 95 % confidence intervals (CIs) were calculated using Cox regression and a flexible parametric model...
January 30, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
Valerio De Stefano, Alessandra Carobbio, Vincenzo Di Lazzaro, Paola Guglielmelli, Alessandra Iurlo, Maria Chiara Finazzi, Elisa Rumi, Francisco Cervantes, Elena Maria Elli, Maria Luigia Randi, Martin Griesshammer, Francesca Palandri, Massimiliano Bonifacio, Juan-Carlos Hernandez-Boluda, Rossella Cacciola, Palova Miroslava, Giuseppe Carli, Eloise Beggiato, Martin H Ellis, Caterina Musolino, Gianluca Gaidano, Davide Rapezzi, Alessia Tieghi, Francesca Lunghi, Giuseppe Gaetano Loscocco, Daniele Cattaneo, Agostino Cortelezzi, Silvia Betti, Elena Rossi, Guido Finazzi, Bruno Censori, Mario Cazzola, Marta Bellini, Eduardo Arellano-Rodrigo, Irene Bertozzi, Parvis Sadjadian, Nicola Vianelli, Luigi Scaffidi, Montse Gomez, Emma Cacciola, Alessandro M Vannucchi, Tiziano Barbui
We analyzed 597 patients with myeloproliferative neoplasms (MPN) who presented transient ischemic attacks (TIA, n = 270) or ischemic stroke (IS, n = 327). Treatment included aspirin, oral anticoagulants, and cytoreductive drugs. The composite incidence of recurrent TIA and IS, acute myocardial infarction (AMI), and cardiovascular (CV) death was 4.21 and 19.2%, respectively at one and five years after the index event, an estimate unexpectedly lower than reported in the general population. Patients tended to replicate the first clinical manifestation (hazard ratio, HR: 2...
February 28, 2018: Blood Cancer Journal
David I Walker, Andrew Younger, Louise Stockley, Craig Baker-Austin
A wide variety of pathogenic agents such as bacteria, viruses and parasites can be greatly concentrated in filter feeding bivalve molluscan shellfish (BMS), that are grown in faecally contaminated waters. Human health risks associated with the consumption of BMS are also compounded by the traditional pattern of consuming them raw or lightly cooked. Because of these well-established food safety risks, food legislation such as that in Europe stipulates that BMS production areas are monitored for faecal contamination and classified accordingly...
August 2018: Food Microbiology
E Cabrera-Díaz, L Martínez-Chávez, J Sánchez-Camarena, J A Muñiz-Flores, A Castillo, P Gutiérrez-González, S M Arvizu-Medrano, D G González-Aguilar, N E Martínez-Gonzáles
Simultaneous and individual enumeration of Salmonella, Shigella and Listeria monocytogenes was compared on inoculated Roma tomatoes and Serrano peppers using an Most Probable Number (MPN) technique. Samples consisting of tomatoes (4 units) or peppers (8 units) were individually inoculated with a cocktail of three strains of Salmonella, Shigella or L. monocytogenes, or by simultaneous inoculation of three strains of each pathogen, at low (1.2-1.7 log CFU/sample) and high (2.2-2.7 log CFU/sample) inocula. Samples were analyzed by an MPN technique using universal pre-enrichment (UP) broth at 35 °C for 24 ± 2 h...
August 2018: Food Microbiology
Jan C Peeken, Jonas S Jutzi, Julius Wehrle, Christoph Koellerer, Felix Staehle, Heiko Becker, Elias Schoenwandt, Thalia S Seeger, Daniel H Schanne, Monika Gothwal, Christopher J Ott, Albert Gründer, Heike L Pahl
The transcription factor "Nuclear Factor Erythroid 2" (NFE2) is overexpressed in the majority of patients with Myeloproliferative Neoplasms (MPN). In murine models, elevated NFE2 levels cause an MPN phenotype with spontaneous leukemic transformation. However, both the molecular mechanisms leading to NFE2 overexpression and its downstream targets remain incompletely understood. Here we show that the histone demethylase JMJD1C constitutes a novel NFE2 target gene. JMJD1C levels are significantly elevated in PV and PMF patients; concomitantly, global H3K9me1 and H3K9me2 levels are significantly decreased...
March 8, 2018: Blood
Patrick M Harrington, Claire N Harrison
The outlook for patients with myeloproliferative neoplasms, particularly myelofibrosis, has improved in recent years, with greater understanding of the pathogenesis and the subsequent development of a plethora of new agents. Areas covered: This article will discuss some of the advances in the field in recent years and explore in greater detail some of the most advanced emerging agents as well as those with greatest potential. An extensive literature review has been performed to identify recent clinical trials and any relevant pre-clinical work...
March 8, 2018: Expert Review of Hematology
Jerry L Spivak
Polycythemia vera (PV) is the most common myeloproliferative neoplasm (MPN), the ultimate phenotype of the JAK2 V1617F mutation, the MPN with the highest incidence of thromboembolic complications, which usually occur early in the course of the disease, and the only MPN in which erythrocytosis occurs. The classical presentation of PV is characterized by erythrocytosis, leukocytosis, and thrombocytosis, often with splenomegaly and occasionally with myelofibrosis, but it can also present as isolated erythrocytosis with or without splenomegaly, isolated thrombocytosis or isolated leukocytosis, or any combination of these...
March 7, 2018: Current Treatment Options in Oncology
Jackline P Ayres-Silva, Martin H Bonamino, Maria E Gouveia, Barbara C R Monte-Mor, Diego F Coutinho, Adelmo H Daumas, Cristiana Solza, Esteban Braggio, Ilana Renault Zalcberg
The genetic events associated with transformation of myeloproliferative neoplasms (MPNs) to secondary acute myeloid leukemia (sAML), particularly in the subgroup of essential thrombocythemia (ET) patients, remain incompletely understood. Deep studies using high-throughput methods might lead to a better understanding of genetic landscape of ET patients who transformed to sAML. We performed array-based comparative genomic hybridization (aCGH) and whole exome sequencing (WES) to analyze paired samples from ET and sAML phases...
2018: Frontiers in Oncology
Guillermo Montalban-Bravo, Koichi Takahashi, Keyur Patel, Feng Wang, Song Xingzhi, Graciela M Nogueras, Xuelin Huang, Ana Alfonso Pierola, Elias Jabbour, Simona Colla, Irene Gañan-Gomez, Gautham Borthakur, Naval Daver, Zeev Estrov, Tapan Kadia, Naveen Pemmaraju, Farhad Ravandi, Carlos Bueso-Ramos, Ali Chamseddine, Marina Konopleva, Jianhua Zhang, Hagop Kantarjian, Andrew Futreal, Guillermo Garcia-Manero
The prognostic and predictive value of sequencing analysis in myelodysplastic syndromes (MDS) has not been fully integrated into clinical practice. We performed whole exome sequencing (WES) of bone marrow samples from 83 patients with MDS and 31 with MDS/MPN identifying 218 driver mutations in 31 genes in 98 (86%) patients. A total of 65 (57%) patients received therapy with hypomethylating agents. By univariate analysis, mutations in BCOR, STAG2, TP53 and SF3B1 significantly influenced survival. Increased number of mutations (≥ 3), but not clonal heterogeneity, predicted for shorter survival and LFS...
February 9, 2018: Oncotarget
Pingnan Xiao, Monika Dolinska, Lakshmi Sandhow, Makoto Kondo, Anne-Sofie Johansson, Thibault Bouderlique, Ying Zhao, Xidan Li, Marios Dimitriou, George Z Rassidakis, Eva Hellström-Lindberg, Nagahiro Minato, Julian Walfridsson, David T Scadden, Mikael Sigvardsson, Hong Qian
Mutations of signal-induced proliferation-associated gene 1 ( SIPA1 ), a RAP1 GTPase-activating protein, were reported in patients with juvenile myelomonocytic leukemia, a childhood myelodysplastic/myeloproliferative neoplasm (MDS/MPN). Sipa1 deficiency in mice leads to the development of age-dependent MPN. However, Sipa1 expression in bone marrow (BM) microenvironment and its effect on the pathogenesis of MPN remain unclear. We here report that Sipa1 is expressed in human and mouse BM stromal cells and downregulated in these cells from patients with MPN or MDS/MPN at diagnosis...
March 13, 2018: Blood Advances
K Lewandowski, M Gniot, M Wojtaszewska, Z Kanduła, R Becht, E Paczkowska, E Mędraś, E Wasilewska, M Iwoła
INTRODUCTION: There are 7 designated conditions under the category of myeloproliferative neoplasms (MPN), including chronic myelogenous leukemia (CML) and classical MPN, that is, polycythemia vera (PV), essential thrombocythaemia (ET), and primary myelofibrosis (PMF). Recently, reports about Philadelphia and JAK2 V617F-positive MPN cases have been described in literature. The coexistence of different molecular defects may change the clinical and laboratory manifestation of MPN and may result in an inappropriate interpretation of the response to treatment with tyrosine kinase inhibitors in CML patients...
March 6, 2018: International Journal of Laboratory Hematology
C Joon Chuah, Alan D Ziegler
We investigated the impacts of on-site sanitation systems to local groundwater. In this year-long study, we monitored the response of faecal contamination levels to hydroclimatological factors including rainfall and groundwater table. Concentration of faecal indicators-E. coli (ESC), Enterococcus (ENT), nitrate-in thirteen pairs of shallow and deep wells were determined every 7-14 days. All samples from shallow wells were tested positive for faecal contamination (ESC and ENT > 1 MPN/100 mL) but concentration varies...
March 5, 2018: Environmental Management
Daniel C McFarland, Kelly M Shaffer, Heather Polizzi, John Mascarenhas, Marina Kremyanskaya, Jimmie Holland, Ronald Hoffman
BACKGROUND: The physical symptom burden of patients with myeloproliferative neoplasms (MPNs) may last for extended periods during their disease trajectories and lead to psychologic distress, anxiety, or depression or all of these. OBJECTIVE: This study evaluated the relationship between physical symptom burden captured by the Physical Problem List (PPL) on the Distress Thermometer and Problem List and psychologic outcomes (distress, anxiety, and depression) in the MPN setting...
January 31, 2018: Psychosomatics
Sarah Hintermair, Elisabeth Zwickl-Traxler, Martin Pecherstorfer, Josef Singer
Myeloproliferative neoplasms (MPN), classified as polycythemia vera (PV), essential thrombocytosis (ET) and myelofibrosis (MF) are stem-cell derived disorders. Mutations in either the januskinase-2 (JAK-2) or the calreticulin (CALR) gene are characteristic for MPN and may result in enhanced proliferation of red blood cells, white blood cells and platelets, and thus increase the risk for vascular events. This study is a retrospective and descriptive analysis of records of patients, who underwent treatment for myeloproliferative syndromes at the Department of Hemato-Oncology of the University hospital Krems from 2008 to the end of 2015...
February 2, 2018: Oncotarget
Steven Wakelin, Guyléne Tillard, Robert van Ham, Ross Ballard, Elizabeth Farquharson, Emily Gerard, Rene Geurts, Matthew Brown, Hayley Ridgway, Maureen O'Callaghan
Biological nitrogen fixation through the legume-rhizobia symbiosis is important for sustainable pastoral production. In New Zealand, the most widespread and valuable symbiosis occurs between white clover (Trifolium repens L.) and Rhizobium leguminosarum bv. trifolii (Rlt). As variation in the population size (determined by most probable number assays; MPN) and effectiveness of N-fixation (symbiotic potential; SP) of Rlt in soils may affect white clover performance, the extent in variation in these properties was examined at three different spatial scales: (1) From 26 sites across New Zealand, (2) at farm-wide scale, and (3) within single fields...
2018: PloS One
Kento Umino, Shin-Ichiro Fujiwara, Takashi Ikeda, Yumiko Toda, Shoko Ito, Kiyomi Mashima, Daisuke Minakata, Hirofumi Nakano, Ryoko Yamasaki, Yasufumi Kawasaki, Miyuki Sugimoto, Chihiro Yamamoto, Masahiro Ashizawa, Kaoru Hatano, Kazuya Sato, Iekuni Oh, Ken Ohmine, Kazuo Muroi, Yoshinobu Kanda
OBJECTIVE: Myeloid/lymphoid neoplasms with fibroblast growth factor receptor-1 (FGFR1) rearrangement are hematopoietic stem cell disorders with a poor prognosis, but no established standard therapy. METHODS: We experienced a patient with T-lymphoblastic lymphoma (LBL) associated with FGFR1 rearrangement who underwent cord blood transplantation, but died of pulmonary complication. We collected the clinical data of patients with FGFR1 rearrangement from the medical literature and analyzed 45 patients, including our patient...
February 28, 2018: Hematology (Amsterdam, Netherlands)
Aditya Shreenivas, John Mascarenhas
INTRODUCTION: Myelofibrosis (MF) is a Philadelphia chromosome-negative myeloproliferative neoplasm (MPN). It can be sub-categorized into primary myelofibrosis, post polycythemia vera myelofibrosis and post essential thrombocythemia myelofibrosis. MF is a life-threatening hematologic malignancy characterized by dysregulation of the Janus associated kinase (JAK)/signal transducer and activator of transcription (STAT) signaling network and a heightened inflammatory state. AREAS COVERED: We cover the pathogenesis, clinical features, new prognostic models, current treatment of MF and discuss agents in development...
February 26, 2018: Expert Opinion on Emerging Drugs
Eilon Krashin, Oren Cohen, David Pereg, Michael Lishner, Avi Leader
: Philadelphia chromosome negative myeloproliferative neoplasms (MPNs) are associated with increased thrombosis and bleeding risk. Mean platelet volume (MPV) is associated with thrombosis in nonmalignant settings. This study evaluates the association between MPV and thrombosis and bleeding in MPN. Patients with MPN without prior thrombosis, nonhematologic malignancy or anticoagulant use were included in this retrospective analysis. The primary endpoint was arterial or venous thrombosis. The secondary endpoints were any bleeding and major bleeding...
February 22, 2018: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
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