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International Journal of Laboratory Hematology

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https://www.readbyqxmd.com/read/28722833/targeted-next-generation-sequencing-using-a-multigene-panel-in-myeloid-neoplasms-implementation-in-clinical-diagnostics
#1
B Maes, J Willemse, A Broekmans, R Smets, B Cruys, N Put, V Madoe, M Janssen, O Soepenberg, G Bries, I Vrelust, R Achten, K Van Pelt, K Buvé, K Theunissen, V Peeters, G Froyen
INTRODUCTION: Detection of mutations in patients with myeloid neoplasms (MNs) has shown great potential for diagnostic and prognostic purposes. Next-generation sequencing (NGS) is currently implemented for the diagnostic profiling of the four major MN subgroups. METHODS: First, we validated the targeted NGS approach using the TruSight Myeloid panel. Next, we screened 287 patients with a clinical suspicion of MN and 61 follow-up patients with documented MN. RESULTS: Validation of the NGS workflow resulted in maximal precision, accuracy, sensitivity, and specificity for gene variants with an allele frequency of at least 5% and a minimal read depth of 300...
July 19, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28722349/global-assays-of-fibrinolysis
#2
LETTER
Ton Lisman
No abstract text is available yet for this article.
July 19, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28722319/immunophenotypic-aberrancies-in-acute-lymphoblastic-leukemia-from-282-iraqi-patients
#3
S D Jalal, N A S Al-Allawi, A A S Al Doski
INTRODUCTION: The identification of aberrancies in leukemia-associated immunophenotype (LAIP) of acute lymphoblastic leukemia (ALL) is quite important in the assessment of minimal residual disease (MRD). This study, the first from Iraq, aimed to assess the frequency and patterns of LAIP among Iraqi patients with ALL, to establish future strategies for evaluating MRD. METHODS: A total of 282 newly diagnosed Iraqi ALL cases were analyzed with six-parameter flow cytometry using a panel of 29 monoclonal antibodies...
July 18, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28722312/cryohemolysis-test-is-for-what-s-causing-the-spherocytosis
#4
LETTER
A H Abdulsalam, Y Ghiath
No abstract text is available yet for this article.
July 18, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28722256/diagnostic-and-prognostic-value-of-low-percentage-of-glycosylated-ferritin-in-acquired-hemophagocytic-lymphohistiocytosis-a-single-center-study
#5
M Nabergoj, M Marinova, G Binotto, L Brugnaro, M Zaninotto, M Plebani, G Semenzato, F Vianello
INTRODUCTION: Hemophagocytic lymphohistiocytosis (HLH) is an aggressive and life-threatening syndrome characterized by an excessive immune activation. Glycosylated ferritin (GF) level has been proposed as highly specific of HLH. METHODS: We have studied 12 subjects with HLH according to the HLH-04 trial criteria and 11 patients with a clinical and laboratoristic suspicion of HLH. The percentage of GF was measured by an in-house assay. RESULTS: The only biomarkers that were significantly different in the two groups were fraction of GF (P<...
July 18, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28691206/duffy-null-genotype-or-fy-a-b-phenotype-are-more-accurate-than-self-declared-race-for-diagnosing-benign-ethnic-neutropenia-in-brazilian-population
#6
LETTER
C L Dinardo, M N Kerbauy, T C Santos, W M Lima, M R Dezan, V B Oliveira, A Mendrone-Júnior, V Rocha, E D R P Velloso
No abstract text is available yet for this article.
July 10, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28675649/reticulocyte-count-and-extended-reticulocyte-parameters-by-mindray-bc-6800-reference-intervals-and-comparison-with-sysmex-xe-5000
#7
M Buttarello, A Rauli, G Mezzapelle
INTRODUCTION: In this study, analytic performance (imprecision, carryover, time stability) and diagnostic efficiency of Mindray BC-6800 analyzer to quantify reticulocytes and extended reticulocyte parameters was evaluated. Moreover, reference intervals on adult population were determined. Results were compared with those obtained by Sysmex XE-5000 analyzer. METHODS: One hundred and eighty-four healthy adults of both sexes, and 368 subjects affected by various pathologic conditions (nutritional anemias before and after treatment, hemolytic and posthemorragic anemias, acute and chronic inflammations, malignancy under therapy, and beta thalassemia trait) were selected...
July 4, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28656600/evaluation-of-whole-blood-conservation-reagents-for-hematoflow-based-wbc-differential-count-unsatisfactory-results
#8
LETTER
O Wagner-Ballon, B Badaoui, A Brignoli, J Le Priol, M Roussel
No abstract text is available yet for this article.
June 27, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28649771/evaluation-of-the-sysmex-xn-550-a-novel-compact-haematology-analyser-from-the-xn-l-%C3%A2-series-compared-to-the-xn-20-system
#9
H Tailor, I Mackie, A Mellick, S Machin
INTRODUCTION: The XN-550 is a new, automated, compact, haematology analyser designed to generate a full blood count with a standard five-part white blood cell differential and an immature granulocyte count, as well as an optional reticulocyte and optical platelet (PLT) counts. The aim of the study was to evaluate the performance of the XN-550 and compare it to the established XN-20 system. METHODS: We evaluated the basic parameter and special measurement channels of the XN-550, using the XN-20 (which has a similar operating system), as a reference analyser...
June 25, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28649769/higher-rate-of-central-nervous-system-involvement-by-flow-cytometry-than-morphology-in-acute-lymphoblastic-leukemia
#10
J Dass, A Dayama, P C Mishra, M Mahapatra, T Seth, S Tyagi, H P Pati, R Saxena
INTRODUCTION: Central nervous system (CNS) involvement in acute lymphoblastic leukemia (ALL) is diagnosed traditionally by cytopathology (CP) of the cerebrospinal fluid (CSF). Role of flow cytometry (FC) to diagnose CNS involvement has not been extensively investigated. METHODS: We aimed to detect CNS involvement in 42 ALL patients (33 B-ALL, nine T-ALL) at diagnosis by FC and comparing it with CP and to correlate it with known risk factors for CNS disease like Lactate dehydrogenase (LDH)...
June 25, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28625017/a-single-tube-flow-cytometric-procedure-for-enhancing-the-diagnosis-and-prognostic-classification-of-patients-with-myelodysplastic-syndromes
#11
B Kárai, J Bedekovics, Zs Miltényi, L Gergely, L Szerafin, A Ujfalusi, J Kappelmayer, Zs Hevessy
INTRODUCTION: We created a simple and effective flow cytometry scoring system (FCSS) for suspected Myelodysplastic syndromes (MDS) samples and evaluated its diagnostic and prognostic potential. METHODS: Besides evaluating the four parameters suggested by Ogata, we investigated erythroid precursors and mast cells. We evaluated the six-parameter FCSS in a four-color setting (test cohort: 51 patients; 25 controls), then we implemented it into an eight-color setting and tested it on a validation cohort of patients with MDS (n=31)...
June 18, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28612430/igg-subclasses-of-fviii-inhibitors-in-an-argentine-cohort-of-severe-hemophilia-a-patients-analysis-by-flow-cytometry
#12
M B Irigoyen, L Primiani, M Felippo, M Candela, M M E de Bracco, N V Galassi
INTRODUCTION: FVIII inhibitors consist of a polyclonal population of antibodies. Previous studies have demonstrated different distribution of IgG subclasses. IgG4 was associated to high level of FVIII inhibitors and failure of immune tolerance induction (ITI) treatment. This study monitored the relative distribution of IgG subclasses of anti-FVIII in patients with severe hemophilia A (SHA). METHODS: Anti-FVIII antibodies were measured employing an immunomethod, developed in our laboratory, that combines flow cytometry (FC) with microspheres coupled (FVIII-m) or not (Control-m) to FVIII...
June 14, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28603947/thrombophilic-gene-polymorphisms-and-recurrent-pregnancy-loss-in-greek-women
#13
M Chatzidimitriou, D Chatzidimitriou, M Mavridou, C Anetakis, F Chatzopoulou, T Lialiaris, S Mitka
INTRODUCTION: Recurrent pregnancy loss (RPL) is a multifactorial disorder. The aim of this study was the detection of various genetic polymorphisms and their correlation to RPL, in Greek women. METHODS: The impact of 12 thrombophilic polymorphisms was evaluated, among 48 Greek women with a history of RPL, vs 27 healthy parous women. Multiplex PCR and in situ hybridization on nitrocellulose films were performed, to investigate 12 genetic polymorphisms previously reported as risk factors for RPL...
June 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28603911/cd11c-expression-in-chronic-lymphocytic-leukemia-revisited-related-with-complications-and-survival
#14
E G Umit, M Baysal, Y Durmus, A M Demir
INTRODUCTION: Chronic lymphocytic leukemia (CLL) is a disorder of mature but dysfunctional monoclonal B cells. Microenvironment, antigenic stimulation and genetical mutations are demonstrated in etiopathogenesis. We aimed to evaluate the expression of CD11c in patients with CLL and its possible clinical significance. METHODS: Data of 259 patients with CLL between 2010 and 2016 in Trakya University Faculty of Medicine, including age at diagnosis, sex, whole blood count, stage, percentage of CLL cells in bone marrow, line of treatments, development of Richter's transformation and secondary tumors, autoimmune complications, IgG level, prognostic cytogenetic analysis, and length of survival were recorded from files...
June 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28603894/a-performance-evaluation-of-a-novel-human-recombinant-tissue-factor-prothrombin-time-reagent-revohem-%C3%A2-pt
#15
C Gardiner, K Kohama, I Patel, P Lane, S Dwyer, S J Machin, I J Mackie
INTRODUCTION: A new prothrombin time reagent (Revohem™ PT) based on recombinant human tissue factor produced by the silkworm-baculovirus expression system was tested. The aim of this study was to compare the performance of the new PT reagent with two widely used routine PT reagents. METHODS: All testing was performed on a Sysmex CS-5100 coagulometer. Revohem(™) PT was tested for imprecision and stability using normal and abnormal lyophilized commercial control plasmas...
June 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28603861/diagnosis-and-molecular-characterization-of-a-novel-%C3%AE-0-thalassemia-deletion-kozani-found-in-a-greek-child-with-unexplained-microcytic-hypochromic-anemia
#16
LETTER
A Makis, I Georgiou, J Traeger-Synodinos, N Chaliasos, M Grosso, A Gambale, A Iolascon
No abstract text is available yet for this article.
June 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28603845/three-novel-hbb-mutations-c-140c-g-90-c-g-c-237_256delggacaacctcaagggcacct-fs-cd-78-85-20%C3%A2-bp-and-c-315-2t-g-ivs2-2-t-g-update-of-the-mutational-spectrum-of-%C3%AE-thalassemia-in-mexican-mestizo-patients
#17
L C Rizo-de-la-Torre, B Ibarra, J Y Sánchez-López, M T Magaña-Torres, V M Rentería-López, F J Perea-Díaz
INTRODUCTION: Beta-thalassemia (β-thal) is frequent in Mexican patients with microcytosis and hypochromia. We report three novel mutations and analyze the actual mutational spectrum in Mexican population. METHODS: One hundred and forty-nine β-thal Mexican mestizo patients were studied (154 alleles). ARMS-PCR was performed to identify Cd39C>T, IVS1:1G>A, IVS1:110G>A, -28A>C, initiation codonA>G and IVS1:5G>A mutations, and gap-PCR for δβ-thal Spanish type...
June 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28598029/assessing-the-stability-and-suitability-of-haematology-parameters-for-diagnosing-and-monitoring-iron-deficiency
#18
LETTER
A Sellors, J Melbourne, J Barratt, L Barton
No abstract text is available yet for this article.
June 9, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28517372/multicenter-verification-of-the-sysmex-xn-series
#19
M Schoorl, M Schoorl, M Chevallier, T van der Ploeg, J van Pelt
INTRODUCTION: Verification of hemocytometry equipment deviates significantly from that of clinical chemistry equipment due to the absence of appropriate control material and the need for fresh material. In practice, verification is limited to comparison with the previously used equipment and determination of reproducibilities. Particularly in multicenter settings, harmonization of results is necessary. If the same equipment is used in several laboratory departments, calibration and uniformity are important issues...
May 18, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28500649/a-comparative-study-using-thrombin-generation-and-three-different-inr-methods-in-patients-on-vitamin-k-antagonist-treatment
#20
N Riva, K Vella, S Meli, K Hickey, D Zammit, C Calamatta, M Makris, S Kitchen, W Ageno, A Gatt
INTRODUCTION: Vitamin K antagonist (VKA) treatment requires routine monitoring using the international normalized ratio (INR). However, different INR assays may vary in their results. The aim of this study was to assess the agreement of three different INR methods, compared with thrombin generation, in patients on VKA treatment. METHODS: Sixty patients attending the Anticoagulation Clinic at Mater Dei Hospital (Msida, Malta) for VKA monitoring between August and September 2015 were enrolled...
May 12, 2017: International Journal of Laboratory Hematology
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