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https://www.readbyqxmd.com/read/28067901/targeting-samhd1-with-the-vpx-protein-to-improve-cytarabine-therapy-for-hematological-malignancies
#1
Nikolas Herold, Sean G Rudd, Linda Ljungblad, Kumar Sanjiv, Ida Hed Myrberg, Cynthia B J Paulin, Yaser Heshmati, Anna Hagenkort, Juliane Kutzner, Brent D G Page, José M Calderón-Montaño, Olga Loseva, Ann-Sofie Jemth, Lorenzo Bulli, Hanna Axelsson, Bianca Tesi, Nicholas C K Valerie, Andreas Höglund, Julia Bladh, Elisée Wiita, Mikael Sundin, Michael Uhlin, Georgios Rassidakis, Mats Heyman, Katja Pokrovskaja Tamm, Ulrika Warpman-Berglund, Julian Walfridsson, Sören Lehmann, Dan Grandér, Thomas Lundbäck, Per Kogner, Jan-Inge Henter, Thomas Helleday, Torsten Schaller
The cytostatic deoxycytidine analog cytarabine (ara-C) is the most active agent available against acute myelogenous leukemia (AML). Together with anthracyclines, ara-C forms the backbone of AML treatment for children and adults. In AML, both the cytotoxicity of ara-C in vitro and the clinical response to ara-C therapy are correlated with the ability of AML blasts to accumulate the active metabolite ara-C triphosphate (ara-CTP), which causes DNA damage through perturbation of DNA synthesis. Differences in expression levels of known transporters or metabolic enzymes relevant to ara-C only partially account for patient-specific differential ara-CTP accumulation in AML blasts and response to ara-C treatment...
January 9, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28064260/minimal-residual-disease-in-pediatric-precursor-b-acute-lymphoblastic-leukemia
#2
Rahul Naithani
No abstract text is available yet for this article.
December 15, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/28063963/timing-and-utility-of-relapse-surveillance-following-allogeneic-hematopoietic-cell-transplantation-in-children-with-leukemia
#3
Anya Levinson, Staci Arnold, Zhezhen Jin, Monica Bhatia, Diane George, James H Garvin, Prakash Satwani
The utility and optimal timing of routine bone marrow (BM) and cerebrospinal fluid (CSF) surveillance following allogeneic hematopoietic cell transplantation (alloHCT) in children with leukemia have not been previously studied. To examine the current practice concerning relapse surveillance in this population, we conducted a national survey of pediatric bone marrow transplant physicians. Sixty-two (41%) of 152 potential participants completed the survey. For acute lymphoblastic leukemia (ALL) patients, 41 physicians (66%) reported performing routine BM analysis in all such patients; 15 (24%) in some patients; and 6 (10%) in no patients...
January 4, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28063190/prognostic-impact-of-specific-molecular-profiles-in-pediatric-acute-megakaryoblastic-leukemia-in-non-down-syndrome
#4
Yusuke Hara, Norio Shiba, Kentaro Ohki, Ken Tabuchi, Genki Yamato, Myoung-Ja Park, Daisuke Tomizawa, Akitoshi Kinoshita, Akira Shimada, Hirokazu Arakawa, Akiko M Saito, Nobutaka Kiyokawa, Akio Tawa, Keizo Horibe, Takashi Taga, Souichi Adachi, Tomohiko Taki, Yasuhide Hayashi
Pediatric acute megakaryoblastic leukemia with non-Down syndrome (AMKL) is a unique subtype of acute myeloid leukemia (AML). Novel CBFA2T3-GLIS2 and NUP98-KDM5A fusions recurrently found in AMKL were recently reported as poor prognostic factors. However, their detailed clinical and molecular characteristics in patients treated with recent improved therapies remain uncertain. We analyzed molecular features of 44 AMKL patients treated on two recent Japanese AML protocols, the AML99 and AML-05 trials. We identified CBFA2T3-GLIS2, NUP98-KDM5A, RBM15-MKL1, and KMT2A rearrangements in 12 (27%), 4 (9%), 2 (5%), and 3 (7%) patients, respectively...
January 7, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28062243/extramedullary-relapse-of-acute-lymphoblastic-leukemia-presenting-as-abnormal-uterine-bleeding-a-case-report
#5
Diana T Robillard, Matthew A Kutny, Joseph H Chewning, Janeen L Arbuckle
BACKGROUND: Acute lymphoblastic leukemia (ALL) is the most common childhood malignancy. Relapse of ALL occurs in 15-20% of patients, with 2-6% occurring exclusively in extramedullary sites. Relapse of ALL in gynecologic organs is extremely rare. CASE: We present a case of a 12 year old with a history of ALL who was referred to the pediatric gynecology clinic with abnormal uterine bleeding. She was determined to have an extramedullary uterine relapse of her ALL. SUMMARY AND CONCLUSION: Abnormal uterine bleeding in the setting of childhood malignancy is a frequent reason for consultation to Pediatric and Adolescent Gynecology services...
January 3, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28060134/severe-hyponatremia-in-a-single-center-series-of-84-homogenously-treated-children-with-acute-lymphoblastic-leukemia
#6
Szymon Janczar, Beata Zalewska-Szewczyk, Wojciech Mlynarski
Electrolyte abnormalities are hallmark metabolic disturbances during the treatment of acute lymphoblastic leukemia (ALL). Hyponatremia is an ominous laboratory sign in the setting of neoplasia. We analyzed the incidence, risk factors, associations, specific interventions and outcomes of severe hyponatremia in a single-center series of children with ALL. The incidence of severe hyponatremia, defined as serum sodium levels below 130 mmol/L on at least 2 of 3 consecutive days, was 11.9%. History of hyponatremia episode is associated with neurologic complications (P=0...
January 5, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28060131/nonfunctioning-adrenocortical-carcinoma-in-pediatric-acute-lymphoblastic-leukemia-a-case-report-of-a-rare-multiple-primaries-combination
#7
Wafaa M Rashed, Wael Zekri, Madiha Awad, Hala Taha, Badr Abdalla, Ahmad S Alfaar
Childhood adrenocortical carcinoma (ACC) is a rare tumor and its association with acute lymphoblastic leukemia (ALL) is even rarer. One such case is discussed in this case report. A 3-year-old patient was concomitantly diagnosed with ALL and an initially nonmetastatic ACC. Management started by following the Total XV protocol without a window phase. Left adrenalectomy was conducted after the consolidation phase. Recurrence of a mass at the tumor bed was discovered at week 33 of the continuation phase. Reexcision was conducted, followed by the administration of an ACC protocol including cisplatin, etoposide, and doxirubicin...
January 5, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28060109/posterior-reversible-encephalopathy-syndrome-and-cerebral-sinus-thrombosis-in-a-case-of-pediatric-b-cell-all
#8
Ellen Fraint, Robin Miller, Andrew Walter
Posterior reversible encephalopathy syndrome (PRES) and cerebral sinus thrombosis are 2 known complications of acute lymphoblastic leukemia and its treatment. We describe a patient with acute lymphoblastic leukemia whose course was complicated by both of these conditions. This case is novel both for the fact that PRES developed before the initiation of therapy and that PRES was followed shortly by the development of cerebral sinus thrombosis. Our patient's story raises questions about our current understanding of the pathophysiology of PRES, and it suggests that PRES may actually be a predisposing risk factor for cerebral sinus thrombosis...
January 5, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28059092/bone-marrow-morphology-and-disease-progression-in-congenital-thrombocytopenia-a-detailed-clinicopathologic-and-genetic-study-of-eight-cases
#9
Hamilton C Tsang, James B Bussel, Susan Mathew, Yen-Chun Liu, Allison A Imahiyerobo, Attilio Orazi, Julia T Geyer
Patients with congenital thrombocytopenia have an increased risk of developing myeloid neoplasms. In these cases, the morphologic distinction between disease at baseline and at progression is challenging. This report analyzes clinicopathologic features of congenital thrombocytopenia with long-term follow-up at one referral center. Records from the last 20 years were searched for cases of congenital thrombocytopenia with bone marrow biopsies and peripheral blood smears. The clinical, morphologic, immunophenotypic, and molecular features were analyzed...
January 6, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28054944/the-role-of-histone-protein-modifications-and-mutations-in-histone-modifiers-in-pediatric-b-cell-progenitor-acute-lymphoblastic-leukemia
#10
REVIEW
Szymon Janczar, Karolina Janczar, Agata Pastorczak, Hani Harb, Adam J W Paige, Beata Zalewska-Szewczyk, Marian Danilewicz, Wojciech Mlynarski
While cancer has been long recognized as a disease of the genome, the importance of epigenetic mechanisms in neoplasia was acknowledged more recently. The most active epigenetic marks are DNA methylation and histone protein modifications and they are involved in basic biological phenomena in every cell. Their role in tumorigenesis is stressed by recent unbiased large-scale studies providing evidence that several epigenetic modifiers are recurrently mutated or frequently dysregulated in multiple cancers. The interest in epigenetic marks is especially due to the fact that they are potentially reversible and thus druggable...
January 3, 2017: Cancers
https://www.readbyqxmd.com/read/28052939/no-association-between-radiation-dose-from-pediatric-ct-scans-and-risk-of-subsequent-hodgkin-lymphoma
#11
Amy Berrington de Gonzalez, Neige Journy, Choonsik Lee, Lindsay M Morton, Richard Harbron, Douglas R Stewart, Louise Parker, Alan W Craft, Kieran McHugh, Mark Little, Mark Pearce
BACKGROUND: We examined the relationship between estimated radiation dose from CT scans and subsequent Hodgkin lymphoma in the UK pediatric CT scans cohort. METHODS: A retrospective, record linkage cohort included patients aged 0-21 years who underwent CT scans between 1980 and 2002 and were followed up for cancer or death until 2008. Poisson regression analysis was used to evaluate the relationship between estimated radiation dose (lagged by two years) and incident Hodgkin lymphoma diagnosed at least two years after the first CT scan...
January 4, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28051344/trends-in-cancer-mortality-among-adolescents-and-young-adults-in-brazil
#12
Nathalie Vieira Balmant, Rejane de Souza Reis, Marceli de Oliveira Santos, Julio Pinto Oliveira, Beatriz de Camargo
PURPOSE: Adolescents and young adults (AYA) with cancer comprise an intermediate age group between pediatric and adult oncology, and have a spectrum of different types of cancers. Survival among this group has not improved as much as in younger children with cancer. The aim of this study was evaluate the trends in cancer mortality of AYA aged 15-29 years in Brazil. METHODS: Data were extracted from the Atlas of Cancer Mortality databases from 1979 to 2013. Age-specific mortality rates were calculated based on the deaths from each type of cancer and the period via a direct method using the proposed world population age groups...
January 4, 2017: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/28045622/use-of-minimal-residual-disease-assessment-to-redefine-induction-failure-in-pediatric-acute-lymphoblastic-leukemia
#13
David O'Connor, Anthony V Moorman, Rachel Wade, Jeremy Hancock, Ronald M R Tan, Jack Bartram, John Moppett, Claire Schwab, Katharine Patrick, Christine J Harrison, Rachael Hough, Nick Goulden, Ajay Vora, Sujith Samarasinghe
Purpose Our aim was to determine the role of end-of-induction (EOI) minimal residual disease (MRD) assessment in the identification and stratification of induction failure in patients with pediatric acute lymphoblastic leukemia (ALL) and to identify genetic abnormalities that drive disease in these patients. Patients and Methods Analysis included 3,113 patients who were treated in the Medical Research Council UKALL2003 multicenter randomized trial (NCT00222612) between 2003 and 2011. MRD was measured by using standardized real-time quantitative PCR...
January 3, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28045617/evaluation-of-functional-rage-gene-polymorphisms-in-childhood-acute-lymphoblastic-leukemia-a-case-control-study-from-iran
#14
Ebrahim Eskandari-Nasab, Mohammad Hashemi, Seyed-Shahab-Adin Hasani, Majid Naderi, Simin Sadeghi-Bojd, Mohsen Taheri
We examined the possible relationship between three RAGE polymorphisms, -429C/T, -374 T/A, and 63-bp deletion, and susceptibility to childhood acute lymphoblastic leukemia (ALL) in an Iranian population. This study included 75 ALL patients and 115 healthy subjects. Genotyping was performed using HEXA-ARMS-polymerase chain reaction. We found no significant association among RAGE gene polymorphisms and the risk for ALL at genotype, allelic and haplotype levels (P > 0.05). The hemoglobin levels were higher in patients with RAGE -374 TT than in the TA carriers (P = 0...
January 3, 2017: Nucleosides, Nucleotides & Nucleic Acids
https://www.readbyqxmd.com/read/28040333/signs-and-symptoms-of-rheumatic-diseases-as-first-manifestation-of-pediatric-cancer-diagnosis-and-prognosis-implications
#15
Mariana Bertoldi Fonseca, Francisco Hugo Rodrigues Gomes, Elvis Terci Valera, Gecilmara Salviato Pileggi, Paula Braga Gonfiantini, Marcela Braga Gonfiantini, Virgínia Paes Leme Ferriani, Luciana Martins de Carvalho
OBJECTIVE: To assess the prevalence and describe the clinical, laboratory and radiological findings, treatment and outcome of children with cancer initially referred to a tertiary outpatient pediatric rheumatology clinic. METHODS: Retrospective analysis of medical records from patients identified in a list of 250 new patients attending the tertiary Pediatric Rheumatology Clinic, Ribeirão Preto Medical School hospital, University of São Paulo, from July 2013 to July 2015, whose final diagnosis was cancer...
December 16, 2016: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28038498/risk-for-health-care-associated-bloodstream-infections-in-pediatric-oncology-patients-with-various-malignancies
#16
Cara B Thurman, Maura Abbott, Jinfang Liu, Elaine Larson
This was a retrospective cohort study to identify the rates, predictors, and outcomes of health care-associated bloodstream infections (HA-BSI) among children with solid tumors, lymphoma, lymphoid leukemia, and myeloid leukemia. The study population included 4500 children ≤18 years old at a pediatric hospital in New York City from 2006 to 2014. A total of 147 HA-BSI cases were identified; using multivariable logistic regression modeling, children with a hematologic diagnosis (lymphoma, lymphoid leukemia, myeloid leukemia) were at greater risk for HA-BSI than those with a solid tumor diagnosis (all P values <...
December 1, 2016: Journal of Pediatric Oncology Nursing: Official Journal of the Association of Pediatric Oncology Nurses
https://www.readbyqxmd.com/read/28032062/impact-of-ego-resilience-and-family-function-on-quality-of-life-in-childhood-leukemia-survivors
#17
Ok-Hee Cho, Yang-Sook Yoo, Kyung-Hye Hwang
BACKGROUND: This study aimed to examine the impact of ego-resilience and family function on quality of life in childhood leukemia survivors. METHODS: This study targeted 100 pediatric leukemia survivors, who visited the Pediatric Hemato-Oncology Center in South Korea from Aug to Dec 2011. A structured questionnaire of ego-resilience, family function and quality of life used to collect data through direct interview with the pediatric patients and their parents. The correlation between the study variables analyzed using the Pearson's correlation coefficient, and the impact on quality of life analyzed using a stepwise multiple regression...
November 2016: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28030535/development-of-a-limited-sampling-strategy-for-the-estimation-of-exposure-to-high-dose-etoposide-after-intravenous-infusion-in-pediatric-patients
#18
Dorota Danielak, Joanna Sobiak, Jacek Wachowiak, Franciszek Główka, Maria Chrzanowska
BACKGROUND: Etoposide (VP-16), a podophylotoxin derivative, is used in conditioning regimens prior to allogeneic hematopoietic stem cell transplantation (allo-HSCT) in children with acute lymphoblastic leukemia (ALL). The aim of this study was to develop a limited sampling strategy (LSS) suitable for the prediction of exposure to VP-16 defined as area-under-time-concentration curve (AUC). METHODS: The study included 28 pediatric patients with ALL, who were administered a 4h infusion of 60 mg/kg VP-16...
December 20, 2016: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28028966/glycogen-synthase-kinase-3%C3%AE-gsk-3%C3%AE-and-nuclear-factor-kappa-b-nfkb-in-childhood-acute-lymphoblastic-leukemia
#19
Cristian Fabian Layton Tovar, Hugo Mendieta Zerón, Maria Del Socorro Camarillo Romero, Yanko V Fabila Sánchez, Isidoro Tejocote Romero
BACKGROUND: Acute lymphocytic leukemia (ALL) is the most common hematologic malignancy in early childhood. In children with acute lymphoblastic leukemia (ALL), the activity of glycogen synthase kinase (GSK-3β) has been associated with changes in the transcriptional activity and expression of nuclear factor kappa beta (NFKB) in the mononuclear cells of bone marrow. OBJECTIVES: The aim of the study was to determine the possible role of glycogen synthase kinase 3beta (GSK-3β) and nuclear factor kappa beta (NFKB) as prognostic variables in pediatric patients with ALL...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28024477/-a-retrospective-study-of-ph-negative-adolescent-and-young-adults-with-acute-b-lymphoblastic-leukemia-in-two-centers
#20
Hong-Hao Gao, Yu Jing, Ming-Juan Liu, Hong-Hua Li, Wen-Rong Huang, Chun-Ji Gao, Dai-Hong Liu, Yong-Hui Li, Sai Huang, Yan Li, Jing Liu, Yong-Qing Zhang, Li Yu
OBJECTIVE: To analyze the therapeutic efficacy of different consolidation therapies after induction remission on Ph negative adolescent and young adults with acute B lymphoblastic leukemia, and to explore the effect of different risk factors on prognosis. METHODS: The treatment and efficacy of 80 Ph negative B-ALL in patients of 16-39 years old in the Hematology Department of 301(65 cases) and 309(15 cases) hospital from 1999 to 2016 are retrospectively analyzed...
December 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
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