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Immature platelet

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https://www.readbyqxmd.com/read/29141318/-ras-associated-autoimmune-leukoproliferative-disorder-a-report-of-2-cases-and-literature-review
#1
T Y He, C R Li, Y Xia, F F Liang, Y Luo, J Yang
Objective: To investigate the clinical features and genetic characteristics of cases with Ras-associated autoimmune leukoproliferative disorder(RALD). Method: Characteristics of clinical data and gene mutation of the first two cases in China with RALD were retrospectively analyzed. The related literature was searched by using search terms "NRAS" , "KRAS" or "RALD" . Result: Case1, a seven-year-seven-month old girl, was admitted due to "thrombocytopenia and splenomegaly for three years" . Palpation showed enlargement of submandibular lymph nodes and hepatosplenomegaly...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29129292/targeting-myeloid-cells-in-the-tumor-sustaining-microenvironment
#2
REVIEW
Jonathan Schupp, Franziska K Krebs, Niklas Zimmer, Emily Trzeciak, Detlef Schuppan, Andrea Tuettenberg
Myeloid cells are the most abundant cells in the tumor microenvironment (TME). The tumor recruits and modulates endogenous myeloid cells to tumor-associated macrophages (TAM), dendritic cells (DC), myeloid-derived suppressor cells (MDSC) and neutrophils (TAN), to sustain an immunosuppressive environment. Pathologically overexpressed mediators produced by cancer cells like granulocyte-macrophage colony-stimulating- and vascular endothelial growth factor induce myelopoiesis in the bone marrow. Excess of myeloid cells in the blood, periphery and tumor has been associated with tumor burden...
November 2, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29117724/reference-intervals-for-absolute-and-percentage-immature-platelet-fraction-using-the-sysmex-xn-10-automated-haematology-analyser-in-a-uk-population
#3
Usman Ali, Gavin Knight, Roz Gibbs, Dimitris A Tsitsikas
BACKGROUND: Immature platelet fraction (IPF) estimation is a non-invasive and sensitive test that is available on recently introduced Sysmex XN-series of automated haematology analysers. It is a direct cellular indicator of thrombopoiesis. The aim of this study was to establish reference intervals for IPF, for both absolute (A-IPF) and percentage (%-IPF) measurements. MATERIAL AND METHODS: A total of 2366 samples that met the inclusion criteria were assayed for full blood count on the Sysmex XN-10 and a non-parametric percentile method was used for calculating the reference intervals...
November 9, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29116547/the-bpd-trio-interaction-of-dysregulated-pdgf-vegf-and-tgf-signaling-in-neonatal-chronic-lung-disease
#4
REVIEW
Prajakta Oak, Anne Hilgendorff
The development of neonatal chronic lung disease (nCLD), i.e., bronchopulmonary dysplasia (BPD) in preterm infants, significantly determines long-term outcome in this patient population. Risk factors include mechanical ventilation and oxygen toxicity impacting on the immature lung resulting in impaired alveolarization and vascularization. Disease development is characterized by inflammation, extracellular matrix remodeling, and apoptosis, closely intertwined with the dysregulation of growth factor signaling...
November 7, 2017: Molecular and Cellular Pediatrics
https://www.readbyqxmd.com/read/29109319/histological-evaluation-of-the-effect-of-platelet-rich-plasma-on-pulp-regeneration-in-nonvital-open-apex-teeth-an-animal-study
#5
Jamileh Ghoddusi, Amir Maghsudlu, Hamid Jafarzadeh, Amirhossein Jafarian, Maryam Forghani
AIM: Platelet-rich plasma (PRP), which is a concentration of growth factors found in platelets, may be a suitable material for pulp regeneration. The aim of this animal study was a histological evaluation of PRP on pulp regeneration in nonvital teeth with immature apices. MATERIALS AND METHODS: A total of 40 premolar dogs' teeth were chosen for this study. After general anesthesia, the teeth were exposed, and subsequently, pulps were removed and the cavities were opened to the oral cavity...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29097774/altered-b-lymphopoiesis-in-mice-with-deregulated-thrombopoietin-signaling
#6
Amanda E Au, Marion Lebois, Starling A Sim, Ping Cannon, Jason Corbin, Pradnya Gangatirkar, Craig D Hyland, Diane Moujalled, Angelika Rutgersson, Fatme Yassinson, Benjamin T Kile, Kylie D Mason, Ashley P Ng, Warren S Alexander, Emma C Josefsson
Thrombopoietin (TPO) is the master cytokine regulator of megakaryopoiesis. In addition to regulation of megakaryocyte and platelet number, TPO is important for maintaining proper hematopoietic stem cell (HSC) function. It was previously shown that a number of lymphoid genes were upregulated in HSCs from Tpo (-/-) mice. We investigated if absent or enhanced TPO signaling would influence normal B-lymphopoiesis. Absent TPO signaling in Mpl (-/-) mice led to enrichment of a common lymphoid progenitor (CLP) signature in multipotential lineage-negative Sca-1(+)c-Kit(+) (LSK) cells and an increase in CLP formation...
November 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29082748/impact-of-long-term-dual-antiplatelet-therapy-on-immature-platelet-count-and-platelet-reactivity
#7
Monica Verdoia, Patrizia Pergolini, Roberta Rolla, Lucia Barbieri, Alon Schaffer, Paolo Marino, Giorgio Bellomo, Harry Suryapranata, Giuseppe De Luca
The immature platelet count (IPC) is a potential marker of platelet reactivity. We assessed the relationship between IPC during chronic dual antiplatelet therapy (DAPT) and the response to antiplatelet drugs (acetylsalycilic acid + clopidogrel/ticagrelor). We included 286 patients: 167 (58.4%) patients received ticagrelor and 119 (41.6%) received clopidogrel. At a median follow-up of 46.5 days, the variation in IPC displayed an absolute median (interquartile range [IQR]) of -11.9 × 10(3)/µL (-182.7 to 160...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/29070128/-clinical-observation-of-therapeutic-regimen-consisted-of-decitabine-combined-with-low-dose-ia-regimen-for-myelodysplastic-syndrome-eb
#8
Di Wu, Jin-Xia Hao, Jing Li, Mei Zhang
OBJECTIVE: To investigate the clinical efficacy of decitabine combined with low-dose IA for treating patients with myelodysplastic syndrome-EB. METHODS: Thirty-seven cases of myelodysplastic syndrome-EB patients diagnosed in the First Affiliated Hospital of Xi'an Jiaotong University from June 2015 to January 2017 were analyzed retrospectively. These patients accepted DAC+IA(19 cases) and DAC(18 cases) treatment separately, and the differences of clinical efficacy between them were compared...
October 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29069007/successful-eltrombopag-treatment-of-severe-refractory-thrombocytopenia-in-chronic-myelomonocytic-leukemia-two-cases-reports-a-care-compliant-article
#9
Yayue Gao, Ming Gong, Chunxia Zhang, Xudong Kong, Yigai Ma
RATIONALE: Thrombocytopenia in chronic myelomonocytic leukemia (CMML) is usually attributed to impaired marrow production resulting from cytotoxic drug use or CMML itself ("CMML-induced thrombocytopenia"). In very rare cases, immune thrombocytopenia (ITP) can be a complication of CMML ("CMML-associated ITP"). However, treatment of severe thrombocytopenia in patients with CMML is still a challenge. PATIENT CONCERNS: Case 1 was a 61-year-old female patient admitted to our hospital because of skin petechiae and purpura for 6 days...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29027117/immature-platelet-fraction-ipf-as-a-predictive-value-for-thrombopoietic-recovery-after-allogeneic-stem-cell-transplantation
#10
Mikiko Sakuragi, Satoru Hayashi, Miho Maruyama, Tomoko Kiyokawa, Keisuke Nagamine, Jiro Fujita, Tetsuo Maeda, Hisashi Kato, Hirokazu Kashiwagi, Yuzuru Kanakura, Yoshiaki Tomiyama
We consecutively examined the utility of measurements of percentage of immature platelet fraction (IPF%) and absolute IPF number (A-IPF) in predicting thrombopoietic recovery in 15 adult patients who underwent allogeneic hematopoietic stem cell transplantation (allo-SCT). Four patients were excluded from the evaluation due to insufficient data. Platelet count and IPF were measured by Sysmex XN-1000 (XN), a newer generation analyzer. First, we confirmed that platelet count measured by XN was more accurate than by XE-2100 (XE)...
October 12, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/29019594/allogeneic-mesenchymal-stem-cells-and-xenogenic-platelet-rich-plasma-associated-or-not-in-the-repair-of-bone-failures-in-rabbits-with-secondary-osteoporosis
#11
Mariá Andrade de Carvalho Rocha, Laís Meireles Costa Silva, Wellson Andrade de Oliveira, Dayseanny de Oliveira Bezerra, Gustavo Cardoso da Silva, Lucilene Dos Santos Silva, Brenda Lurian do Nascimento Medeiros, Sílvia de Araújo França Baêta, Maria Acelina Martins de Carvalho, Napoleão Martins Argôlo
PURPOSE: To assess the efficacy of allogeneic mesenchymal stem cells and xenogenic platelet rich plasma in the treatment of bone failure of osteoporotic rabbits secondary to estrogenic deprivation and iatrogenic hypercortisolism. METHODS: Eight female rabbits underwent ovarian resection and corticoid therapy to induce clinical status of osteoporosis. Four failures were produced in the tibiae, with each failure being treated with hemostatic sponge, allogenic mesenchymal stem cells, xenogenic platelet-rich plasma and the association between both...
September 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28988440/immature-platelet-fraction-in-immune-thrombocytopenia-useful-in-diagnosis-but-does-it-predict-bleeding
#12
Alan D Michelson
No abstract text is available yet for this article.
October 8, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28980399/comparison-of-performance-and-abnormal-cell-flagging-of-two-automated-hematology-analyzers-sysmex-xn-3000-and-beckman-coulter-dxh-800
#13
S Genc, E Dervisoglu, S Erdem, O Arslan, M Aktan, B Omer
INTRODUCTION: The purpose was to evaluate the analytical performances of Sysmex XN 3000 and UniCel DxH 800 comparing the obtained results with manual counting and between each other. Also flagging capabilities of abnormal cells were compared for both analyzers. METHODS: Two thousand one hundred and forty-two whole-blood samples were analyzed for evaluation. The samples flagged due to blast, atypical lymphocyte (AL), immature granulocyte (IG), or nucleated red blood cells (NRBC) were microscopically reviewed (n=102)...
October 4, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28965773/an-innovative-regenerative-endodontic-procedure-using-leukocyte-and-platelet-rich-fibrin-associated-with-apical-surgery-a%C3%A2-case%C3%A2-report
#14
Nelson Pinto, Alexandra Harnish, Carolina Cabrera, Catherine Andrade, Tony Druttman, Claudia Brizuela
Regenerative endodontic procedures (REPs) associated with apical surgery could represent an alternative treatment strategy for patients whose teeth present incomplete root formation and extensive apical lesions. Leukocyte platelet-rich fibrin (L-PRF) has potential benefits in REPs; it could promote apical root formation and optimal bone healing. The aim of this case report was to describe innovative regenerative endodontic therapy using L-PRF in the root canal and an extensive apical lesion in an immature tooth with dens invaginatus and asymptomatic apical periodontitis...
November 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28955243/the-effect-of-a-100-km-ultra-marathon-under-freezing-conditions-on-selected-immunological-and-hematological-parameters
#15
Alena Žákovská, Beat Knechtle, Daniela Chlíbková, Marie Miličková, Thomas Rosemann, Pantelis T Nikolaidis
Although moderate exercise is beneficial for the human body and its immune system, exhaustive ultra-endurance performance in cold conditions might be harmful. The aim of this study was to examine the effect of a 100-km ultra-marathon under cold conditions (temperatures from -1°C to +1°C) on selected immunological, biochemical and hematological parameters. Participants were 15 runners (12 men and three women, age 40.3 ± 9.7 years, body mass 67.3 ± 9.0 kg and body height 1.74 ± 0.10 m, mean ± standard deviation)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28950949/g-protein-coupled-kinin-receptors-and-immunity-against-pathogens
#16
Julio Scharfstein, Pablo I P Ramos, Manoel Barral-Netto
For decades, immunologists have considered the complement system as a paradigm of a proteolytic cascade that, acting cooperatively with the immune system, enhances host defense against infectious organisms. In recent years, advances made in thrombosis research disclosed a functional link between activated neutrophils, monocytes, and platelet-driven thrombogenesis. Forging a physical barrier, the fibrin scaffolds generated by synergism between the extrinsic and intrinsic (contact) pathways of coagulation entrap microbes within microvessels, limiting the systemic spread of infection while enhancing the clearance of pathogens by activated leukocytes...
2017: Advances in Immunology
https://www.readbyqxmd.com/read/28938160/nilotinib-enhances-tumor-angiogenesis-and-counteracts-vegfr2-blockade-in-an-orthotopic-breast-cancer-xenograft-model-with-desmoplastic-response
#17
Sara Zafarnia, Jessica Bzyl-Ibach, Igor Spivak, Yongping Li, Susanne Koletnik, Dennis Doleschel, Anne Rix, Sibylle Pochon, Isabelle Tardy, Seena Koyadan, Marc van Zandvoort, Moritz Palmowski, Fabian Kiessling, Wiltrud Lederle
Vascular endothelial growth factor (VEGF)/VEGF receptor (VEGFR)-targeted therapies predominantly affect nascent, immature tumor vessels. Since platelet-derived growth factor receptor (PDGFR) blockade inhibits vessel maturation and thus increases the amount of immature tumor vessels, we evaluated whether the combined PDGFR inhibition by nilotinib and VEGFR2 blockade by DC101 has synergistic therapy effects in a desmoplastic breast cancer xenograft model. In this context, besides immunohistological evaluation, molecular ultrasound imaging with BR55, the clinically used VEGFR2-targeted microbubbles, was applied to monitor VEGFR2-positive vessels noninvasively and to assess the therapy effects on tumor angiogenesis...
November 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28932736/mean-platelet-volume-and-immature-platelet-fraction-in-autoimmune-disorders
#18
REVIEW
Deonilson Schmoeller, Maria Mercedes Picarelli, Terezinha Paz Munhoz, Carlos Eduardo Poli de Figueiredo, Henrique Luiz Staub
Mean platelet volume (MPV), measured using automated blood analysers, has been appraised as a potential biomarker in cardiovascular disease, diabetes mellitus, and cancer. The test, a useful tool in differentiation of thrombocytopenic states, has now been carried out for autoimmune disorders, but data are yet scarce. Controversial results have been obtained in systemic and organ-specific autoimmune disorders. Another test, the immature platelet fraction (IPF) reflects the amount of young, reticulated platelets...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28921855/utility-of-the-immature-platelet-fraction-in-pediatric-immune-thrombocytopenia-differentiating-from-bone-marrow-failure-and-predicting-bleeding-risk
#19
Alicia McDonnell, Karen L Bride, Derick Lim, Michele Paessler, Char M Witmer, Michele P Lambert
BACKGROUND: Differentiating childhood immune thrombocytopenia (ITP) from other cause of thrombocytopenia remains a diagnosis of exclusion. Additionally factors that predict bleeding risk for those patients with ITP are currently not well understood. Previous small studies have suggested that immature platelet fraction (IPF) may differentiate ITP from other causes of thrombocytopenia and in combination with other factors may predict bleeding risk. METHODS: We performed a retrospective chart review of thrombocytopenic patients with an IPF measured between November 1, 2013 and July 1, 2015...
September 17, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28880458/determinants-of-platelet-count-in-pediatric-patients-with-congenital-cyanotic-heart-disease-role-of-immature-platelet-fraction
#20
Randa M Matter, Iman A Ragab, Alaa M Roushdy, Ahmed G Ahmed, Hanan H Aly, Eman A Ismail
OBJECTIVES: Congenital heart defects are common noninfectious causes of mortality in children. Bleeding and thrombosis are both limiting factors in the management of such patients. We assessed the frequency of thrombocytopenia in pediatric patients with congenital cyanotic heart disease (CCHD) and evaluated determinants of platelet count including immature platelet fraction (IPF) and their role in the pathogenesis of thrombocytopenia. METHODS: Forty-six children and adolescents with CCHD during pre-catheter visits were studied; median age was 20...
September 7, 2017: Congenital Heart Disease
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