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Thrombocytosis

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https://www.readbyqxmd.com/read/28097884/the-pretreatment-thrombocytosis-may-predict-prognosis-of-patients-with-colorectal-cancer-a-systematic-review-and-meta-analysis
#1
Yong-Hong Wang, Shao-Jun Deng, Yong-Dong Yang, Nan Yao, Jian-Meng Zhao, Guang-Tao Min, Jun Wang, Teng-Fei Xu, Peng-Ying Zhao, Hong-Peng Wang, Wei Chen
AIM: Recently, several studies have reported that thrombocytosis may be associated with the poor prognosis of colorectal cancer (CRC). Nevertheless, their conclusions were still controversial. Results & methodology: We searched PubMed, Embase, Cochrane Library and Web of Science up to April 2016. A total of 30 studies including 9129 patients were included in this meta-analysis. Thrombocytosis had a close relationship with the poor overall survival of CRC compared with normal platelet counts, with the pooled hazard ratios being 1...
January 18, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28087540/international-evidence-based-consensus-diagnostic-criteria-for-hhv-8-negative-idiopathic-multicentric-castleman-disease
#2
David C Fajgenbaum, Thomas S Uldrick, Adam Bagg, Dale Frank, David Wu, Gordan Srkalovic, David Simpson, Amy Y Liu, David Menke, Shanmuganathan Chandrakasan, Mary Jo Lechowicz, Raymond S M Wong, Sheila Pierson, Michele Paessler, Jean-François Rossi, Makoto Ide, Jason Ruth, Michael Croglio, Alexander Suarez, Vera Krymskaya, Amy Chadburn, Gisele Colleoni, Sunita Nasta, Raj Jayanthan, Christopher S Nabel, Corey Casper, Angela Dispenzieri, Alexander Fosså, Dermot Kelleher, Razelle Kurzrock, Peter Voorhees, Ahmet Dogan, Kazuyuki Yoshizaki, Frits van Rhee, Eric Oksenhendler, Elaine S Jaffe, Kojo S J Elenitoba-Johnson, Megan S Lim
Human Herpesvirus-8(HHV-8)-negative, idiopathic multicentric Castleman disease (iMCD) is a rare and life-threatening disorder involving systemic inflammatory symptoms, polyclonal lymphoproliferation, cytopenias, and multiple organ system dysfunction due to a cytokine storm often including interleukin-6. iMCD accounts for one-third to one-half of all cases of MCD and can occur in individuals of any age. Accurate diagnosis is challenging, as no standard diagnostic criteria or diagnostic biomarkers currently exist, and there is significant overlap with malignant, autoimmune, and infectious disorders...
January 13, 2017: Blood
https://www.readbyqxmd.com/read/28078838/dengue-fever-associated-with-extreme-reactive-thrombocytosis
#3
U K Egodage, N U Dissanayake, M U Dahanayake, C K Bodinayake
No abstract text is available yet for this article.
30, 2016: Ceylon Medical Journal
https://www.readbyqxmd.com/read/28060550/evaluating-platelet-function-disorders-in-children-with-bleeding-tendency-a-single-center-study
#4
Osama Tanous, Orna Steinberg Shemer, Joanne Yacobovich, Meira Zoldan, Yoseph Horovitz, Isaac Yaniv, Esther Rabizadeh, Hannah Tamary, Sigal Nakav, Judith Lahav
Platelet function disorders (PFDs) are a common cause of mild bleeding tendency. However, they cannot be recognized by standard screening studies. The gold standard test for PFD is platelet aggregation, performed by light transmission aggregometry (LTA). A newer and less validated method is the closure time (CT), performed by the platelet function Analyzer 100 (PFA-100). Data regarding the validity of these tests in children are limited. The aim of this study was to evaluate the usefulness of LTA and PFA-100 for the diagnosis of pediatric patients with bleeding tendency...
January 6, 2017: Platelets
https://www.readbyqxmd.com/read/28058472/partial-splenectomy-is-superior-to-total-splenectomy-for-selected-patients-with-hemangiomas-or-cysts
#5
Lei Wang, Jianwei Xu, Feng Li, Hanxiang Zhan, Han Liu, Wei Chen, Sanyuan Hu
BACKGROUND: The superiority of partial splenectomy (PS) as a treatment for benign tumors has not well been confirmed. This study aimed to identify the short- and long-term outcomes of PS, to compare laparoscopic and laparotomic PS, and to demonstrate whether the effects of PS are superior to that of total splenectomy (TS). METHODS: Patients with either a hemangioma or cyst who underwent PS or TS from 2009 to 2015 at Qilu Hospital of Shandong University were included...
January 5, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28034873/an-incomplete-trafficking-defect-to-the-cell-surface-leads-to-paradoxical-thrombocytosis-for-human-and-murine-mpl-p106l
#6
Fabrizia Favale, Kahia Messaoudi, Leila N Varghese, Siham Boukour, Christian Pecquet, Vitalina Gryshkova, Jean Philippe Defour, Roxana-Irina Albu, Olivier Bluteau, Paola Ballerini, Guy Leverger, Isabelle Plo, Najet Debili, Hana Raslova, Remi Favier, Stefan N Constantinescu, William Vainchenker
The mechanisms behind the hereditary thrombocytosis induced by the thrombopoietin (THPO) receptor MPL P106L mutant remain unknown. A complete trafficking defect to the cell surface has been reported, suggesting either weak constitutive activity or nonconventional THPO-dependent mechanisms. Here, we report that the thrombocytosis phenotype induced by MPL P106L belongs to the paradoxical group, where low MPL levels on platelets and mature megakaryocytes (MKs) lead to high serum THPO levels, whereas weak but not absent MPL cell-surface localization in earlier MK progenitors allows response to THPO by signaling and amplification of the platelet lineage...
December 29, 2016: Blood
https://www.readbyqxmd.com/read/28028026/diagnosis-risk-stratification-and-response-evaluation-in-classical-myeloproliferative-neoplasms
#7
Elisa Rumi, Mario Cazzola
Philadelphia-negative classical myeloproliferative neoplasms include polycythemia vera, essential thrombocythemia, and primary myelofibrosis. The 2016 revision of the World Health Organization (WHO) classification of tumors of hematopoietic and lymphoid tissues includes new criteria for the diagnosis of these disorders. Somatic mutations in the 3 driver genes, that is, JAK2, CALR, and MPL, represent major diagnostic criteria in combination with hematologic and morphological abnormalities. Polycythemia vera is characterized by erythrocytosis with suppressed endogenous erythropoietin production, bone marrow panmyelosis, and JAK2 mutation...
December 27, 2016: Blood
https://www.readbyqxmd.com/read/28009425/gemcitabine-induced-thrombocytosis-as-a-potential-predictive-factor-in-non-small-cell-lung-cancer-analysis-of-318-patients
#8
Stefania Canova, Federica Cicchiello, Francesco Agustoni, Giampaolo Bianchini, Maria Ida Abbate, Paolo Bidoli, Diego Luigi Cortinovis
INTRODUCTION: In spite of the progress in the treatment of non-small-cell lung cancer (NSCLC), the majority of patients with advanced disease still receive chemotherapy. Gemcitabine alone or combined with a platinum compound is a valid option. Thrombocytosis is a recognized prognostic factor in lung cancer and an adverse event that may occur during gemcitabine infusion. METHODS: We retrospectively evaluated all patients with NSCLC treated with first-line gemcitabine-based chemotherapy in two Italian hospitals...
November 28, 2016: Tumori
https://www.readbyqxmd.com/read/27994837/treatment-of-refractory-anemia-with-ring-sideroblasts-associated-with-marked-thrombocytosis-with-lenalidomide-in-a-patient-testing-negative-for-5q-deletion-and-jak2-v617f-and-mpl-w515k-l-mutations
#9
Ryan Keen, Jeremy Pantin, Natasha Savage, Paul M Dainer
Refractory anemia with ring sideroblasts associated with marked thrombocytosis (RARS-T) is a hematologic malignancy that often results in transfusion dependency and a hypercoagulable state. This rare disease currently lacks formal guidelines for treatment; however, various case reports have demonstrated efficacy in the use of lenalidomide. This immunomodulatory drug has shown promise in patients with 5q deletions, with reports of achieving transfusion independence and normalization of platelet counts. Herein we present the case of a 68-year-old African American woman with RARS-T who tested negative for 5q deletion and JAK2 V617F and MPL W515K/L mutations...
November 2, 2016: Hematology Reports
https://www.readbyqxmd.com/read/27991718/polycythemia-vera-and-essential-thrombocythemia-2017-update-on-diagnosis-risk-stratification-and-management
#10
Ayalew Tefferi, Tiziano Barbui
DISEASE OVERVIEW: Polycythemia Vera (PV) and essential thrombocythemia (ET) are myeloproliferative neoplasms respectively characterized by erythrocytosis and thrombocytosis; other disease features include leukocytosis, splenomegaly, thrombosis, bleeding, microcirculatory symptoms, pruritus, and risk of leukemic or fibrotic transformation. DIAGNOSIS: PV is defined by a JAK2 mutation, whose absence, combined with normal or increased serum erythropoietin level, makes the diagnosis unlikely...
January 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/27991683/platelet-counts-and-genetic-polymorphisms-of-alcohol-dehydrogenase-1b-and-aldehyde-dehydrogenase-2-in-japanese-alcoholic-men
#11
Akira Yokoyama, Tetsuji Yokoyama, Takeshi Mizukami, Toshifumi Matsui, Mitsuru Kimura, Sachio Matsushita, Susumu Higuchi, Katsuya Maruyama
BACKGROUND: Thrombocytopenia during intoxication, rebound thrombocytosis during 1 to 3 weeks of abstinence, and subsequent normalization of the platelet count are common in alcoholics. METHODS: We evaluated 989 Japanese alcoholic men to identify the effects of genetic polymorphisms of alcohol dehydrogenase-1B (ADH1B; rs1229984) and aldehyde dehydrogenase-2 (ALDH2; rs671) on platelet counts during an 8-week in-hospital abstinence period. RESULTS: Thrombocytopenia (<15 × 10(4) /μl) was observed in 25...
January 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/27984634/approach-to-patients-with-essential-thrombocythaemia-and-very-high-platelet-counts-what-is-the-evidence-for-treatment
#12
REVIEW
Lorenzo Falchi, Prithviraj Bose, Kate J Newberry, Srdan Verstovsek
Treatment of essential thrombocythaemia (ET) is directed at decreasing the risk of complications of the disease, including arterial and venous thrombosis and bleeding episodes. Established risk factors for vascular events in patients with ET include advanced age (>60 years) and prior history of thrombosis or haemorrhage. The role, if any, of other potential risk factors, including cardiovascular risk factors, leucocytosis, high haematocrit, and JAK2 V617F has been analysed in multiple studies. The impact of thrombocytosis on the risk of vascular events has also been investigated...
December 16, 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27984485/platelet-%C3%A3-crp-multiplier-value-as-an-indicator-of-poor-prognosis-in-patients-with-resectable-pancreatic-cancer
#13
Ryoichi Miyamoto, Tatsuya Oda, Shinji Hashimoto, Tomohiro Kurokawa, Keisuke Kohno, Yoshimasa Akashi, Yusuke Ohara, Keiichi Yamada, Tsuyoshi Enomoto, Nobuhiro Ohkohchi
OBJECTIVE: Thrombocytosis in patients with various cancers has been considered a parameter for poor prognosis; however, its contribution to pancreatic cancer remains controversial. METHODS: Potential preoperative prognostic parameters (platelets, neutrophils, lymphocytes, the platelet-lymphocyte ratio, the neutrophil-lymphocyte ratio, the serum C-reactive protein [CRP], and carbohydrate antigen 19-9) were retrospectively analyzed in 95 patients with pancreatic cancer...
January 2017: Pancreas
https://www.readbyqxmd.com/read/27978904/-clinical-manifestations-of-10-cases-of-imported-human-zika-virus-disease-in-jiangmen-city-of-china
#14
N C Zheng, Y H Liu, Q Chen, M T Chen, C G Zheng, Z W Yang, J Hu, J H Liang, M H Xue, A Q Chen, Q W Feng
Objective: To study the clinical manifestations and detection method for imported patients of Zika virus disease. Method: The records of symptoms, signs and laboratory results were collected and analyzed. The specimen of blood, saliva and urine from patients were collected. Results: Two of ten patients had mild fever. The visible cutaneous maculopapular rash of the trunk and extremities was observed in all patients. Seven patients were observed congestive conjunctivitis and only one patient gave an account of itching...
December 6, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27966016/austrian-recommendations-for-the-management-of-primary-myelofibrosis-post-polycythemia-vera-myelofibrosis-and-post-essential-thrombocythemia-myelofibrosis-an-expert-statement
#15
Thamer Sliwa, Christine Beham-Schmid, Sonja Burgstaller, Veronika Buxhofer-Ausch, Günther Gastl, Klaus Geissler, Maria Krauth, Peter Krippl, Alois Lang, Andreas Petzer, Stefan Wöhrer, Albert Wölfler, Heinz Gisslinger
The entity "myelofibrosis" represents a subgroup of the Philadelphia chromosome-negative myeloproliferative neoplasms. It comprises primary myelofibrosis, post-polycythemia vera myelofibrosis and post-essential thrombocythemia myelofibrosis. This heterogeneous disease is characterized by clonal myeloproliferation, dysregulated kinase signalling and the abnormal expression of several proinflammatory cytokines. Clinically, patients present with symptoms related to thrombocytosis/leukocytosis, anemia and/or progressive splenomegaly...
December 13, 2016: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27920655/deep-vein-thrombosis-as-initial-manifestation-of-whipple-disease
#16
Mônica Souza de Miranda Henriques, Alexandre Rolim da Paz, Ana Beatriz Person Gaertner, Cibelle Ingrid Stephen Melo, Priscyanne Lins Filgueiras, Rafaella Alencar Jerome
INTRODUCTION: Wipple disease (WD) is a rare chronic disease caused by the bacillus Tropheryma whipplei. Constitutive, rheumatologic, gastrointestinal, cardiac, cerebral, lymphatic, cutaneous, and ophthalmological signs are possible systemic symptoms. However, thrombotic manifestations are rarely described as "stroke-like syndrome" or arterial thrombosis. Diagnosis is based on clinical manifestations and pathological examination. Laboratory findings may include anemia, leukocytosis, and thrombocytosis...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27900761/the-effect-of-iron-balance-on-platelet-counts-in-blood-donors
#17
Anne F Eder, Yu Ying Yau, Kamille West
BACKGROUND: Thrombocytosis (or, less commonly, thrombocytopenia) is associated with iron-deficiency anemia and resolves with iron therapy. Many volunteer blood donors have low iron stores, with or without anemia. Iron balance could affect platelet counts in blood donors. STUDY DESIGN AND METHODS: Whole blood donors deferred for finger-stick hemoglobin levels less than 12.5 g/dL were evaluated by complete blood count and serum iron panel before and after oral iron treatment...
November 29, 2016: Transfusion
https://www.readbyqxmd.com/read/27895669/myeloproliferative-disease-an-unusual-cause-of-raynaud-s-phenomenon-and-digital-ischaemia
#18
Celia Beynon, Gwenan Huws, Tom Lawson
We describe a 59-year-old female who presented with ischaemic digits, preceded by a 6-month history of Raynaud's phenomenon affecting her fingers and toes. There were no clinical or laboratory features of primary vasculitis or connective tissue disease, Doppler imaging was normal, and bloods were unremarkable aside from a platelet count of 786 × 109/L (150-400) and white cells of 16 × 109/L (4-11). In view of the thrombocytosis a JAK2 mutation assay was requested which confirmed a JAK2 V617F mutation, suggesting essential thrombocytosis (ET) as the cause...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27881012/elevated-aspartate-aminotransferase-and-monocyte-counts-predict-unfavorable-prognosis-in-patients-with-malignant-pleural-mesothelioma
#19
A Zhang, S Cao, S Jin, J Cao, J Shen, B Pan, R Zhu, Y Yu
Limited biomarkers predicting prognosis of malignant pleural mesothelioma (MPM) have been identified. The present study aims to assess potential laboratory prognostic factors of MPM. We retrospectively reviewed the clinical data of 105 patients with MPM. The overall survival and prognostic factors were assessed by Kaplan-Meier curves and Cox regression analysis. A receiver operating characteristic (ROC) curve analysis was performed to determine the optimal cut-off values. The mean age of the 105 patients (62 men, 43 women) was 56...
November 24, 2016: Neoplasma
https://www.readbyqxmd.com/read/27879260/antibiotics-impair-murine-hematopoiesis-by-depleting-intestinal-microbiota
#20
Kamilla S Josefsdottir, Megan T Baldridge, Claudine S Kadmon, Katherine Y King
Bone marrow suppression is an adverse effect associated with many antibiotics, especially when administered for prolonged treatment courses. Recent advances in our understanding of steady-state hematopoiesis have allowed us to explore the effects of antibiotics on hematopoietic progenitors in detail using a murine model. Antibiotic-treated mice exhibited anemia, thrombocytosis, and leukopenia, with pronounced pan-lymphopenia as demonstrated by flow cytometric analysis of peripheral blood. Bone marrow progenitor analysis revealed depletion of hematopoietic stem cells and multipotent progenitors across all subtypes...
November 22, 2016: Blood
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