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Articles 541 - 570 of 598

Full-Text Articles in Hemic and Lymphatic Diseases

Evaluating A Preoperative Protocol That Includes Magnetic Resonance Imaging For Lymph Node Metastasis In The Cholangiocarcinoma Screening And Care Program (Cascap) In Thailand., Metha Songthamwat, Nittaya Chamadol, Narong Khuntikeo, Jadsada Thinkhamrop, Supinda Koonmee, Nathaphop Chaichaya, Jeffrey Bethony, Bandit Thinkhamrop Sep 2017

Evaluating A Preoperative Protocol That Includes Magnetic Resonance Imaging For Lymph Node Metastasis In The Cholangiocarcinoma Screening And Care Program (Cascap) In Thailand., Metha Songthamwat, Nittaya Chamadol, Narong Khuntikeo, Jadsada Thinkhamrop, Supinda Koonmee, Nathaphop Chaichaya, Jeffrey Bethony, Bandit Thinkhamrop

Microbiology, Immunology, and Tropical Medicine Faculty Publications

BACKGROUND: Treatment planning especially liver resection in cholangiocarcinoma (CCA) depends on the extension of tumor and lymph node metastasis which is included as a key criterion for operability. Magnetic resonance imaging (MRI) offers a rapid and powerful tool for the detection of lymph node metastasis (LNM) and in the current manuscript is assessed as a critical tool in the preoperative protocol for liver resection for treatment of CCA. However, the accuracy of MRI to detect LNM from CCA had yet to be comprehensively evaluated.

METHODS: The accuracy of MRI to detect LNM was assessed in a cohort of individuals with …


Dnmt3a Haploinsufficiency Provokes Hematologic Malignancy Of B-Lymphoid, T-Lymphoid, And Myeloid Lineage In Mice, Garland Michael Upchurch Aug 2017

Dnmt3a Haploinsufficiency Provokes Hematologic Malignancy Of B-Lymphoid, T-Lymphoid, And Myeloid Lineage In Mice, Garland Michael Upchurch

Theses & Dissertations

DNA methyltransferase 3A (DNMT3A) is a master epigenetic regulator of benign and malignant hematopoiesis. To dissect the biological consequences of homozygous and heterozygous Dnmt3a inactivation in malignant hematopoiesis, we generated Dnmt3a homozygous null (Dnmt3aΔ/Δ) and Dnmt3a heterozygous (Dnmt3a+/) mice and compared the presentations of hematologic malignancies between cohorts. Bi-allelic inactivation of Dnmt3a results in the presentation of mature lymphoid neoplasms resembling chronic lymphocytic leukemia (CLL; B220+CD19+CD5+; 88% penetrance (37/42)) and CD8+ peripheral T-cell lymphoma (PTCL; TCRβ+CD3+CD8+CD4; 40% penetrance (17/42)). …


Extrafollicular Activities: Perspectives On Hiv Infection, Germinal Centerindependent Maturation Pathways, And Kshv-Mediated Lymphoproliferation, Jennifer Totonchy Aug 2017

Extrafollicular Activities: Perspectives On Hiv Infection, Germinal Centerindependent Maturation Pathways, And Kshv-Mediated Lymphoproliferation, Jennifer Totonchy

Pharmacy Faculty Articles and Research

Early events in the pathogenesis of KSHV-associated lymphoproliferations in the context of HIV disease remain poorly understood. Recent research indicates that latent HIV infection causes persistent immune dysfunction in B cell follicles. Simultaneously, lack of T cell immune surveillance in the lymph nodes dysregulates the biology of EBV. In sum, these defects bias B lymphocyte maturation away from traditional T cell-dependent germinal center-mediated pathways and towards extrafollicular pathways. Recent advances in B lymphocyte immunology suggest that extrafollicular maturation pathways for antibody secreting cells are more flexible and robust than previously believed. These responses are now understood to be both durable …


Determining The Longitudinal Validity And Meaningful Differences In Hrql Of The Pedsql™ Sickle Cell Disease Module., Julie A Panepinto, J Paul Scott, Oluwakemi Badaki-Makun, Deepika S Darbari, Corrie E Chumpitazi, Gladstone E Airewele, +Several Additional Authors Jun 2017

Determining The Longitudinal Validity And Meaningful Differences In Hrql Of The Pedsql™ Sickle Cell Disease Module., Julie A Panepinto, J Paul Scott, Oluwakemi Badaki-Makun, Deepika S Darbari, Corrie E Chumpitazi, Gladstone E Airewele, +Several Additional Authors

Pediatrics Faculty Publications

BACKGROUND: Detecting change in health status over time and ascertaining meaningful changes are critical elements when using health-related quality of life (HRQL) instruments to measure patient-centered outcomes. The PedsQL™ Sickle Cell Disease module, a disease specific HRQL instrument, has previously been shown to be valid and reliable. Our objectives were to determine the longitudinal validity of the PedsQL™ Sickle Cell Disease module and the change in HRQL that is meaningful to patients.

METHODS: An ancillary study was conducted utilizing a multi-center prospective trial design. Children ages 4-21 years with sickle cell disease admitted to the hospital for an acute painful …


Dox Inducible Idh2 R140q Expression In Stem Cells Results In Cell Death, Opposite Of Cancerous Overgrowth, Reuben Hogan May 2017

Dox Inducible Idh2 R140q Expression In Stem Cells Results In Cell Death, Opposite Of Cancerous Overgrowth, Reuben Hogan

Undergraduate Research Symposium Posters

Mutations in isocitrate dehydrogenase (IDH) 1 or 2 are found in about 23% of acute myeloid leukemia (AML) samples and about 90% of gliomas. Mutations result in neomorphic function of the IDH enzyme that yields the novel molecule 2-hydroxyglutarate (2HG) instead of alpha-ketoglutarate (aKG). 2HG is known to be associated with hypermethylation of DNA and histones, a phenotype seen in AML. Our lab intends to study the mechanism by which hypermethylation is achieved and how this mechanism relates to the onset of cancer. In this experiment, we utilized a line of H9 stem cells which we had developed. These cells …


Improved Survival After Acute Graft-Versus-Host Disease Diagnosis In The Modern Era, H Khoury, T Wang, Michael T. Hemmer, D Couriel, A Alousi, Mitchell Cairo, J Pidala May 2017

Improved Survival After Acute Graft-Versus-Host Disease Diagnosis In The Modern Era, H Khoury, T Wang, Michael T. Hemmer, D Couriel, A Alousi, Mitchell Cairo, J Pidala

NYMC Faculty Publications

Acute graft-versus-host disease remains a major threat to a successful outcome after allogeneic hematopoietic cell transplantation. While improvements in treatment and supportive care have occurred, it is unknown whether these advances have resulted in improved outcome specifically among those diagnosed with acute graft-versus-host disease. We examined outcome following diagnosis of grade II-IV acute graft-versus-host disease according to time period, and explored effects according to original graft-versus-host disease prophylaxis regimen and maximum overall grade of acute graft-versus-host disease. Between 1999 and 2012, 2,905 patients with acute myeloid leukemia (56%), acute lymphoblastic …


Autoimmune Hemolytic Anemia Associated With Babesiosis, Roshni Narurkar, Aleksandra Mamorska-Dyga, John Nelson, Delong Liu Apr 2017

Autoimmune Hemolytic Anemia Associated With Babesiosis, Roshni Narurkar, Aleksandra Mamorska-Dyga, John Nelson, Delong Liu

NYMC Faculty Publications

BACKGROUND: Babesiosis is endemic in selected areas in North America. Babesia infection is commonly associated with anemia, thrombocytopenia, hyponatremia and elevated liver enzymes. Autoimmune hemolytic anemia (AIHA) is known to be caused by parasitic and viral infections but has not been well characterized. CASE PRESENTATION: We describe two cases diagnosed with babesiosis triggering severe AIHA. One case had history of splenectomy, and the other was an elderly patient. Older, immunocompromised and asplenic patients may be particularly at risk for post-babesiosis AIHA (PB-AIHA). CONCLUSIONS: The pathogenesis for conventional AIHA and PB-AIHA appears to be different, since splenectomy is a treatment for …


Aapt Diagnostic Criteria For Chronic Sickle Cell Disease Pain., Carlton Dampier, Tonya M Palermo, Deepika S Darbari, Kathryn Hassell, Wally Smith, William Zempsky Jan 2017

Aapt Diagnostic Criteria For Chronic Sickle Cell Disease Pain., Carlton Dampier, Tonya M Palermo, Deepika S Darbari, Kathryn Hassell, Wally Smith, William Zempsky

Pediatrics Faculty Publications

Pain in sickle cell disease (SCD) is associated with increased morbidity, mortality, and high health care costs. Although episodic acute pain is the hallmark of this disorder, there is an increasing awareness that chronic pain is part of the pain experience of many older adolescents and adults. A common set of criteria for classifying chronic pain associated with SCD would enhance SCD pain research efforts in epidemiology, pain mechanisms, and clinical trials of pain management interventions, and ultimately improve clinical assessment and management. As part of the collaborative effort between the Analgesic, Anesthetic, and Addiction Clinical Trial Translations Innovations Opportunities …


Pseudomembranous Tracheitis Caused By Aspergillus Fumigatus In The Setting Of High Grade T-Cell Lymphoma, Prashant Malhotra, Karan Singh, Paul Gill, Sonu Sahni, Mina Makaryus, Arunabh Talwar Jan 2017

Pseudomembranous Tracheitis Caused By Aspergillus Fumigatus In The Setting Of High Grade T-Cell Lymphoma, Prashant Malhotra, Karan Singh, Paul Gill, Sonu Sahni, Mina Makaryus, Arunabh Talwar

Touro College of Osteopathic Medicine (New York) Publications and Research

Pseudomembranous tracheitis (PMT) is a rare condition most commonly caused by fungal or bacterial infection that is characterized by a pseudomembrane that partially or completely covers the tracheobronchial tree. PMT is most commonly found in immunocompromised patient populations, such as post-chemotherapy, AIDS, post-transplant and hematological malignancies. Due to its rarity, PMT is often not included in the differential diagnosis. This case describes a 65 year old male with persistent fever and refractory cough despite high dose empiric antibiotics. Subsequent bronchoscopy with biopsy revealed pseudomembranous tracheitis due to Aspergillus fumigatus in the setting of T-cell lymphoma. PMT should be considered in …


A Rare Breed: Wild-Type Braf And Ighv Expression In A 29 Year Old Lady With Classical Hairy Cell Leukemia, A. Hossain, Hind Rafei, Amar Jariwala, Khaled El-Shami Jan 2017

A Rare Breed: Wild-Type Braf And Ighv Expression In A 29 Year Old Lady With Classical Hairy Cell Leukemia, A. Hossain, Hind Rafei, Amar Jariwala, Khaled El-Shami

Medicine Faculty Publications

The V600 BRAF mutation has been described as a key mutation in the pathogenesis of classical hairy cell leukemia (c-HCL) cases without expression of a mutant immunoglobulin heavy chain (IgHV). Here we present a rare case of c-HCL with neither V600 BRAF mutation nor the aforementioned IgHV variant successfully treated with cladribine and review the current literature on its use in women of childbearing age/pregnancy.


Post-Transfusion Purpura: A Case Report Of An Underdiagnosed Phenomenon, Hind Rafei, Raza Yunus, Samah Nassereddine Jan 2017

Post-Transfusion Purpura: A Case Report Of An Underdiagnosed Phenomenon, Hind Rafei, Raza Yunus, Samah Nassereddine

Medicine Faculty Publications

Post-transfusion purpura is a rare transfusion-related complication that often goes undiagnosed. It is due to alloimmunization against platelet antigens which leads to acute profound thrombocytopenia following the transfusion of any platelet-containing product (red blood cells or platelets). It is commonly seen in multiparous women. Here, we report a case of post-transfusion purpura in a 56-year-old multiparous woman who developed acute thrombocytopenia seven days following a packed red blood cell transfusion. We will discuss the clinical presentation, diagnosis, workup and treatment of this rare disease. It is important to recognize this entity separately and to include it in the differential diagnosis …


Mir-155 Expression And Correlation With Clinical Outcome In Pediatric Aml: A Report From Children's Oncology Group., Ranjani Ramamurthy, Maya Hughes, Valerie Morris, Hamid Bolouri, Robert B. Gerbing, Yi-Cheng Wang, Michael R. Loken, Susana C. Raimondi, Betsy A. Hirsch, A S. Gamis, Vivian G. Oehler, Todd A. Alonzo, Soheil Meshinchi Dec 2016

Mir-155 Expression And Correlation With Clinical Outcome In Pediatric Aml: A Report From Children's Oncology Group., Ranjani Ramamurthy, Maya Hughes, Valerie Morris, Hamid Bolouri, Robert B. Gerbing, Yi-Cheng Wang, Michael R. Loken, Susana C. Raimondi, Betsy A. Hirsch, A S. Gamis, Vivian G. Oehler, Todd A. Alonzo, Soheil Meshinchi

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Aberrant expression of microRNA-155 (miR-155) has been implicated in acute myeloid leukemia (AML) and associated with clinical outcome.

PROCEDURE: We evaluated miR-155 expression in 198 children with normal karyotype AML (NK-AML) enrolled in Children's Oncology Group (COG) AML trial AAML0531 and correlated miR-155 expression levels with disease characteristics and clinical outcome. Patients were divided into quartiles (Q1-Q4) based on miR-155 expression level, and disease characteristics were then evaluated and correlated with miR-155 expression.

RESULTS: MiR-155 expression varied over 4-log10-fold range relative to its expression in normal marrow with a median expression level of 0.825 (range 0.043-25.630) for the entire …


Erratum To: High Expression Of Myocyte Enhancer Factor 2c (Mef2c) Is Associated With Adverse-Risk Features And Poor Outcome In Pediatric Acute Myeloid Leukemia: A Report From The Children's Oncology Group., George S. Laszlo, Todd A. Alonzo, Chelsea J. Gudgeon, Kimberly H. Harrington, Alex Kentsis, Robert B. Gerbing, Yi-Cheng Wang, Rhonda E. Ries, Susana C. Raimondi, Betsy A. Hirsch, A S. Gamis, Soheil Meshinchi, Roland B. Walter Nov 2016

Erratum To: High Expression Of Myocyte Enhancer Factor 2c (Mef2c) Is Associated With Adverse-Risk Features And Poor Outcome In Pediatric Acute Myeloid Leukemia: A Report From The Children's Oncology Group., George S. Laszlo, Todd A. Alonzo, Chelsea J. Gudgeon, Kimberly H. Harrington, Alex Kentsis, Robert B. Gerbing, Yi-Cheng Wang, Rhonda E. Ries, Susana C. Raimondi, Betsy A. Hirsch, A S. Gamis, Soheil Meshinchi, Roland B. Walter

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.


A Trial Of Unrelated Donor Marrow Transplantation For Children With Severe Sickle Cell Disease., Shalini Shenoy, Mary Eapen, Julie A. Panepinto, Brent R. Logan, Juan Wu, Allistair Abraham, Joel Brochstein, Sonali Chaudhury, Kamar Godder, Ann E. Haight, Kimberly A. Kasow, Kathryn Leung, Martin Andreansky, Monica Bhatia, Jignesh Dalal, Hilary Haines, Jennifer Jaroscak, Hillard M. Lazarus, John E. Levine, Lakshmanan Krishnamurti, David Margolis, Gail C. Megason, Lolie C. Yu, Michael A. Pulsipher, Iris Gersten, Nancy Difronzo, Mary M. Horowitz, Mark C. Walters, Naynesh Kamani Nov 2016

A Trial Of Unrelated Donor Marrow Transplantation For Children With Severe Sickle Cell Disease., Shalini Shenoy, Mary Eapen, Julie A. Panepinto, Brent R. Logan, Juan Wu, Allistair Abraham, Joel Brochstein, Sonali Chaudhury, Kamar Godder, Ann E. Haight, Kimberly A. Kasow, Kathryn Leung, Martin Andreansky, Monica Bhatia, Jignesh Dalal, Hilary Haines, Jennifer Jaroscak, Hillard M. Lazarus, John E. Levine, Lakshmanan Krishnamurti, David Margolis, Gail C. Megason, Lolie C. Yu, Michael A. Pulsipher, Iris Gersten, Nancy Difronzo, Mary M. Horowitz, Mark C. Walters, Naynesh Kamani

Manuscripts, Articles, Book Chapters and Other Papers

Children with sickle cell disease experience organ damage, impaired quality of life, and premature mortality. Allogeneic bone marrow transplant from an HLA-matched sibling can halt disease progression but is limited by donor availability. A Blood and Marrow Transplant Clinical Trials Network (BMT CTN) phase 2 trial conducted from 2008 to 2014 enrolled 30 children aged 4 to 19 years; 29 were eligible for evaluation. The primary objective was 1-year event-free survival (EFS) after HLA allele-matched (at HLA-A, -B, -C, and -DRB1 loci) unrelated donor transplant. The conditioning regimen included alemtuzumab, fludarabine, and melphalan. Graft-versus-host disease (GVHD) prophylaxis included calcineurin inhibitor, …


Shorter Remission Telomere Length Predicts Delayed Neutrophil Recovery After Acute Myeloid Leukemia Therapy: A Report From The Children's Oncology Group., Robert B. Gerbing, Todd A. Alonzo, Lillian Sung, Alan S. Gamis, Soheil Meshinchi, Sharon E. Plon, Alison A. Bertuch, Maria M. Gramatges Nov 2016

Shorter Remission Telomere Length Predicts Delayed Neutrophil Recovery After Acute Myeloid Leukemia Therapy: A Report From The Children's Oncology Group., Robert B. Gerbing, Todd A. Alonzo, Lillian Sung, Alan S. Gamis, Soheil Meshinchi, Sharon E. Plon, Alison A. Bertuch, Maria M. Gramatges

Manuscripts, Articles, Book Chapters and Other Papers

Purpose Suboptimal outcomes for children with acute myeloid leukemia (AML) necessitate maximally intensive therapy. Consequently, serious adverse events, such as prolonged periods of profound myelosuppression, contribute to AML treatment-related mortality. Telomeres, the repetitive DNA-protein structures at chromosome ends, influence cellular replicative capacity in that critically short telomeres can induce cell senescence or apoptosis. Our objective was to evaluate the impact of telomere length on duration of post-therapy neutropenia in a pediatric AML cohort. Patients and Methods Patients were diagnosed with de novo AML, enrolled in Children's Oncology Group study AAML0531, and included those with (n = 53) and without (n …


Association Between Prolonged Neutropenia And Reduced Relapse Risk In Pediatric Aml: A Report From The Children's Oncology Group., Lillian Sung, Richard Aplenc, Todd A. Alonzo, Robert B. Gerbing, Yi-Cheng Wang, Soheil Meshinchi, A S. Gamis Nov 2016

Association Between Prolonged Neutropenia And Reduced Relapse Risk In Pediatric Aml: A Report From The Children's Oncology Group., Lillian Sung, Richard Aplenc, Todd A. Alonzo, Robert B. Gerbing, Yi-Cheng Wang, Soheil Meshinchi, A S. Gamis

Manuscripts, Articles, Book Chapters and Other Papers

Objective was to describe the relationship between the number of sterile site infections and duration of neutropenia during the first four cycles of chemotherapy and the risk of recurrence and overall survival in children with newly diagnosed acute myeloid leukemia (AML). AAML0531 was a Children's Oncology Group randomized phase 3 clinical trial that included 1022 children with de novo AML. For this analysis, we focused on non-Down syndrome favorable and standard risk patients who completed at least 4 cycles of chemotherapy without recurrence or withdrawal during protocol therapy. Those receiving hematopoietic stem cell transplantation in first remission were excluded. Five …


Insights Into The Molecular Roles Of Heparan Sulfate Proteoglycans (Hspgs-Syndecans) In Autocrine And Paracrine Growth Factor Signaling In The Pathogenesis Of Hodgkin's Lymphoma, Rajendra Ghardbaran Sep 2016

Insights Into The Molecular Roles Of Heparan Sulfate Proteoglycans (Hspgs-Syndecans) In Autocrine And Paracrine Growth Factor Signaling In The Pathogenesis Of Hodgkin's Lymphoma, Rajendra Ghardbaran

Publications and Research

Syndecans (SDC, SYND) comprise a group of four structurally related type 1 transmembrane heparan sulfate proteoglycans (HSPGs) that play important roles in tumorigenic processes. SDCs exert signaling via their protein cores and their conserved transmembrane and cytoplasmic domains or by forming complexes with growth factors (GFs). In classical Hodgkin's lymphoma (cHL), a lymphoid neoplasm of predominantly B cell origin, SDC1 and SDC4 are the active SDCs, and a number of GF (vascular endothelial growth factor, fibroblast growth factor, etc.) signaling pathways have been studied. However, despite extensive pre-clinical and clinical research on SDC-mediated GF signaling in many cancer types, there …


The Pathogenesis Of Natural Killer/T Cell Lymphoma, Bei Jiang Aug 2016

The Pathogenesis Of Natural Killer/T Cell Lymphoma, Bei Jiang

Theses & Dissertations

Extranodal natural killer/T-cell lymphomas (NKTCL) are uncommon lymphomas with poor prognosis. In order to gain a better understanding of the molecular pathogenesis of NKTCL, we obtained and compared the global gene expression profile, global somatic mutation profile, and global methylation profile of normal NK cells, malignant NK cell lines, and NKTCL patient samples. We showed that the JAK-STAT pathway was constitutively activated in NKTCL through the cooperation between activation of signal transducer and activator of transcription proteins (STATs) via activating mutations and inactivation of STAT suppressor protein suppressor of cytokine signaling 6 (SOCS6) through promoter hypermethylation. Activating STAT3 and STAT5B …


Conditional Screening For Ultra-High Dimensional Covariates With Survival Outcomes, Hyokyoung Grace Hong, Jian Kang, Yi Li Mar 2016

Conditional Screening For Ultra-High Dimensional Covariates With Survival Outcomes, Hyokyoung Grace Hong, Jian Kang, Yi Li

The University of Michigan Department of Biostatistics Working Paper Series

Identifying important biomarkers that are predictive for cancer patients' prognosis is key in gaining better insights into the biological influences on the disease and has become a critical component of precision medicine. The emergence of large-scale biomedical survival studies, which typically involve excessive number of biomarkers, has brought high demand in designing efficient screening tools for selecting predictive biomarkers. The vast amount of biomarkers defies any existing variable selection methods via regularization. The recently developed variable screening methods, though powerful in many practical setting, fail to incorporate prior information on the importance of each biomarker and are less powerful in …


Pharmacokinetics And Bioequivalence Of A Liquid Formulation Of Hydroxyurea In Children With Sickle Cell Anemia., Jeremie H. Estepp, Chiara Melloni, Courtney D. Thornburg, Paweł Wiczling, Zora Rogers, Jennifer A. Rothman, Nancy S. Green, Robert Liem, Amanda M. Brandow, Shelley E. Crary, Thomas H. Howard, Maurine H. Morris, Andrew Lewandowski, Uttam Garg, William J. Jusko, Kathleen A. Neville, Best Pharmaceuticals For Children Act-Pediatric Trials Network Administrative Core Committee Mar 2016

Pharmacokinetics And Bioequivalence Of A Liquid Formulation Of Hydroxyurea In Children With Sickle Cell Anemia., Jeremie H. Estepp, Chiara Melloni, Courtney D. Thornburg, Paweł Wiczling, Zora Rogers, Jennifer A. Rothman, Nancy S. Green, Robert Liem, Amanda M. Brandow, Shelley E. Crary, Thomas H. Howard, Maurine H. Morris, Andrew Lewandowski, Uttam Garg, William J. Jusko, Kathleen A. Neville, Best Pharmaceuticals For Children Act-Pediatric Trials Network Administrative Core Committee

Manuscripts, Articles, Book Chapters and Other Papers

Hydroxyurea (HU) is a crucial therapy for children with sickle cell anemia, but its off-label use is a barrier to widespread acceptance. We found HU exposure is not significantly altered by liquid vs capsule formulation, and weight-based dosing schemes provide consistent exposure. HU is recommended for all children starting as young as 9 months of age with sickle cell anemia (SCA; HbSS and HbSβspan(0) thalassemia); however; a paucity of pediatric data exists regarding the pharmacokinetics (PK) or the exposure-response relationship of HU. This trial aimed to characterize the PK of HU in children and to evaluate and compare the bioavailability …


Hydroxycarbamide Versus Chronic Transfusion For Maintenance Of Transcranial Doppler Flow Velocities In Children With Sickle Cell Anaemia-Tcd With Transfusions Changing To Hydroxyurea (Twitch): A Multicentre, Open-Label, Phase 3, Non-Inferiority Trial., Russell E Ware, Barry R Davis, William H Schultz, R Clark Brown, Banu Aygun, Sharada Sarnaik, Lori Luchtman-Jones, +Several Additional Authors Feb 2016

Hydroxycarbamide Versus Chronic Transfusion For Maintenance Of Transcranial Doppler Flow Velocities In Children With Sickle Cell Anaemia-Tcd With Transfusions Changing To Hydroxyurea (Twitch): A Multicentre, Open-Label, Phase 3, Non-Inferiority Trial., Russell E Ware, Barry R Davis, William H Schultz, R Clark Brown, Banu Aygun, Sharada Sarnaik, Lori Luchtman-Jones, +Several Additional Authors

Pediatrics Faculty Publications

BACKGROUND: For children with sickle cell anaemia and high transcranial doppler (TCD) flow velocities, regular blood transfusions can effectively prevent primary stroke, but must be continued indefinitely. The efficacy of hydroxycarbamide (hydroxyurea) in this setting is unknown; we performed the TWiTCH trial to compare hydroxyurea with standard transfusions.

METHODS: TWiTCH was a multicentre, phase 3, randomised, open-label, non-inferiority trial done at 26 paediatric hospitals and health centres in the USA and Canada. We enrolled children with sickle cell anaemia who were aged 4-16 years and had abnormal TCD flow velocities (≥ 200 cm/s) but no severe vasculopathy. After screening, eligible …


Surgeon's Guide To Anticoagulant And Antiplatelet Medications Part Two: Antiplatelet Agents And Perioperative Management Of Long-Term Anticoagulation., Louise Y Y Yeung, Babak Sarani, Jordan A Weinberg, Paul B Mcbeth, Addison K May Jan 2016

Surgeon's Guide To Anticoagulant And Antiplatelet Medications Part Two: Antiplatelet Agents And Perioperative Management Of Long-Term Anticoagulation., Louise Y Y Yeung, Babak Sarani, Jordan A Weinberg, Paul B Mcbeth, Addison K May

Surgery Faculty Publications

An increasing number of potent antiplatelet and anticoagulant medications are being used for the long-term management of cardiac, cerebrovascular, and peripheral vascular conditions. Management of these medications in the perioperative and peri-injury settings can be challenging for surgeons, mandating an understanding of these agents and the risks and benefits of various management strategies. In this two part review, agents commonly encountered by surgeons in the perioperative and peri-injury settings are discussed and management strategies for patients on long-term antiplatelet and anticoagulant therapy reviewed. In part one, we review warfarin and the new direct oral anticoagulants. In part two, we review …


Examination Of Reticulocytosis Among Chronically Transfused Children With Sickle Cell Anemia., Megha Kaushal, Colleen Byrnes, Zarir Khademian, Natalie Duncan, Naomi L. Luban, Jeffery L Miller, Ross Fasano, Emily R. Meier Jan 2016

Examination Of Reticulocytosis Among Chronically Transfused Children With Sickle Cell Anemia., Megha Kaushal, Colleen Byrnes, Zarir Khademian, Natalie Duncan, Naomi L. Luban, Jeffery L Miller, Ross Fasano, Emily R. Meier

Pediatrics Faculty Publications

Sickle cell anemia (SCA) is an inherited hemolytic anemia with compensatory reticulocytosis. Recent studies have shown that increased levels of reticulocytosis during infancy are associated with increased hospitalizations for SCA sequelae as well as cerebrovascular pathologies. In this study, absolute reticulocyte counts (ARC) measured prior to transfusion were analysed among a cohort of 29 pediatric SCA patients receiving chronic transfusion therapy (CTT) for primary and secondary stroke prevention. A cross-sectional flow cytometric analysis of the reticulocyte phenotype was also performed. Mean duration of CTT was 3.1 ± 2.6 years. Fifteen subjects with magnetic resonance angiography (MRA) -vasculopathy had significantly higher …


Dental Extraction Is Probably Safe For Patients With Thrombocytopenia: The Standard Of Care Is A Guide For Clinical Decision Making Related To Platelet Transfusion., Phillip So Jul 2015

Dental Extraction Is Probably Safe For Patients With Thrombocytopenia: The Standard Of Care Is A Guide For Clinical Decision Making Related To Platelet Transfusion., Phillip So

Clinical Research in Practice: The Journal of Team Hippocrates

A critical appraisal and clinical application of Fillmore WJ, Leavitt BD, Arce K. Dental extraction in the thrombocytopenic patient is safe and complications are easily managed. J Oral Maxillofac Surg. 2013 Oct;71(10):1647-1652. doi:10.1016/j.joms.2013.05.011.


Antithyroid Drug-Induced Agranulocytosis, Elizabeth Spears Jul 2015

Antithyroid Drug-Induced Agranulocytosis, Elizabeth Spears

Nursing Student Class Projects (Formerly MSN)

We live in a culture that is busy and constantly on the go. With little time to spare, often symptoms of an alteration in bodily function are pushed to the side and attribute to the stress of everyday life. With symptoms including nausea, fatigue, weight loss, nervousness, and irritability, one may be more inclined to disregard these symptoms, only to attribute them to effects of a busy lifestyle. The presentation of the previously listed symptoms can formulate a medical diagnosis of hyperthyroidism. According to the American Thyroid Association, 20 million Americans will develop some type of alteration in thyroid function …


Multiple Myeloma, Matthew Crowley Jul 2015

Multiple Myeloma, Matthew Crowley

Nursing Student Class Projects (Formerly MSN)

Multiple myeloma a rare and largely incurable malignant disease the affects the plasma cells. (Bilotti, Gleason, McNeill, and the International Myeloma Foundation Nurse Leadership Board, 2011). Understanding the pathophysiology of Multiple Myeloma (MM) and treatment options in Oncology and Hematology nursing can be difficult. It is the goal of this poster to outline the pathophysiology, prognosis, treatment options available to multiple myeloma patients. Multiple myeloma accounts for about 10% of hematologic malignancies in the U.S. (Kuo, Fenves, Mehta, 2011). MM is the second most common hematologic malignancy with twenty-four thousand new MM cases each year (Bianchi, and Anderson, 2014 )


Tslp-Induced Mechanisms And Potential Therapies For Crlf2 B-Cell Acute Lymphoblastic Leukemia, Olivia L. Francis Jun 2015

Tslp-Induced Mechanisms And Potential Therapies For Crlf2 B-Cell Acute Lymphoblastic Leukemia, Olivia L. Francis

Loma Linda University Electronic Theses, Dissertations & Projects

Childhood CRLF2 B-cell Acute Lymphoblastic Leukemia (CRLF2 B-ALL) is a high-risk form of leukemia that is associated with poor patient survival outcomes. CRLF2 B-ALL is five times more prevalent in Hispanic children than others and is associated with a higher rate of relapse, thus contributing significantly to childhood cancer health disparities. This disease occurs due to alterations of the CRLF2 gene, leading to overexpression of the CRLF2 protein- a component of the receptor signaling complex for the cytokine Thymic Stromal LymphoPoietin (TSLP) on the surface of B-ALL cells. TSLP has been shown to induce proliferation of human and mouse B-cell …


Src Homology 2 Domain-Containing 5’-Inositol Phosphatase-2 (Ship2) Is An Effector Of Lymphatic Dysfunction, Germaine D. Agollah May 2015

Src Homology 2 Domain-Containing 5’-Inositol Phosphatase-2 (Ship2) Is An Effector Of Lymphatic Dysfunction, Germaine D. Agollah

Dissertations and Theses (Open Access)

The lymphatic system is essential for the transport of excess fluid, protein, and foreign materials from interstitial tissues to lymph nodes; for immune surveillance, and to maintain fluid homeostasis. Dysregulated lymphatics can be attributed to pathological conditions including tumor metastasis, inflammation, chronic wounds, obesity, blood vascular disorders, and lymphedema. Of these, lymphedema is the most extreme of lymphatic disorders and is represented by a spectrum of symptoms ranging from mild, subtle presentation to severe, disfiguring, overt presentation. Lymphedema is more manageable in the early stages of disease but severely reduces quality of life with progression. Due to lack of molecular …


Clinical Outcomes Of Splenectomy In Children: Report Of The Splenectomy In Congenital Hemolytic Anemia Registry., Henry E. Rice, Brian R. Englum, Jennifer Rothman, Sarah Leonard, Audra Reiter, Courtney Thornburg, Mary Brindle, Nicola Wright, Matthew M. Heeney, Charles Smithers, Rebeccah L. Brown, Theodosia Kalfa, Jacob C. Langer, Michaela Cada, Keith T. Oldham, J Paul Scott, Shawn D. St Peter, Mukta Sharma, Andrew M. Davidoff, Kerri Nottage, Kathryn Bernabe, David B. Wilson, Sanjeev Dutta, Bertil Glader, Shelley E. Crary, Melvin S. Dassinger, Levette Dunbar, Saleem Islam, Manjusha Kumar, Fred Rescorla, Steve Bruch, Andrew Campbell, Mary Austin, Robert Sidonio, Martin L Blakely, Splenectomy In Congenital Hemolytic Anemia (Sicha) Consortium Mar 2015

Clinical Outcomes Of Splenectomy In Children: Report Of The Splenectomy In Congenital Hemolytic Anemia Registry., Henry E. Rice, Brian R. Englum, Jennifer Rothman, Sarah Leonard, Audra Reiter, Courtney Thornburg, Mary Brindle, Nicola Wright, Matthew M. Heeney, Charles Smithers, Rebeccah L. Brown, Theodosia Kalfa, Jacob C. Langer, Michaela Cada, Keith T. Oldham, J Paul Scott, Shawn D. St Peter, Mukta Sharma, Andrew M. Davidoff, Kerri Nottage, Kathryn Bernabe, David B. Wilson, Sanjeev Dutta, Bertil Glader, Shelley E. Crary, Melvin S. Dassinger, Levette Dunbar, Saleem Islam, Manjusha Kumar, Fred Rescorla, Steve Bruch, Andrew Campbell, Mary Austin, Robert Sidonio, Martin L Blakely, Splenectomy In Congenital Hemolytic Anemia (Sicha) Consortium

Manuscripts, Articles, Book Chapters and Other Papers

The outcomes of children with congenital hemolytic anemia (CHA) undergoing total splenectomy (TS) or partial splenectomy (PS) remain unclear. In this study, we collected data from 100 children with CHA who underwent TS or PS from 2005 to 2013 at 16 sites in the Splenectomy in Congenital Hemolytic Anemia (SICHA) consortium using a patient registry. We analyzed demographics and baseline clinical status, operative details, and outcomes at 4, 24, and 52 weeks after surgery. Results were summarized as hematologic outcomes, short-term adverse events (AEs) (≤30 days after surgery), and long-term AEs (31-365 days after surgery). For children with hereditary spherocytosis, …


Hereditary Spherocytosis, Dolores Loeser Oct 2014

Hereditary Spherocytosis, Dolores Loeser

Nursing Student Class Projects (Formerly MSN)

Hereditary Spherocytosis (HS) is a hemolytic anemia where red blood cell membranes are spherical unlike common red blood cells, which are flat and round. In individuals with HS the spleen does not recognize these amorphous cells and destroys—rather filters—them them, making the individual anemic (MedlinePlus, 2013). HS is an autosomal dominant, or recessive autosomal inherited blood disease (Huq, Pietroni, Rahman & Alam, 2010) HS happens in 1 in 2,000 of the Caucasian population in or from Northern Europe (MedlinePlus, 2013). The proteins involved in HS are ankyrin-1, ά-spectrin, β-spectrin, band 3, and protein 4.2. Hyperbilirubinemia is a common symptoms in …