Recurrent intragenic exon rearrangements of SOBP and AUTS2 in non-Hodgkin B-cell lymphomaAbstract
Expression of intragenic exon rearrangements (IERs) has reportedly been detected in both normal and cancer cells. However, there have been few reports of occurrence of these rearrangements specific to neoplasms including malignant lymphoma. In this study, we detected IERs of ten genes (NBPF8, SOBP, AUTS2, RAB21, SPATA13, ABCC4, WDR7, PHLPP1, NFATC1 and MAGED1) in non-Hodgkin B cell lymphoma (B-NHL) cell line KPUM-UH1 using a high-resolution single nucleotide polymorphism array and reverse transcription polymerase chain reaction using reversely directed divergent primers within exons involved in genomic intragenic gains followed by sequencing analysis. Among them, the IERs involved in SOBP (6q21) exon 2 and 3 and AUTS2 (7q11.22) exon 2–4 were the molecular lesions specific to tumors and were frequently detected in B-NHL samples. These IERs constitute novel genetic alterations of B-NHL, which might be associated with tumorigenesis and be useful as genetic biological markers.
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Chemotherapy-related nail toxicity |
Tetrasomy 8 and isochromosome 7q in CD5-positive hepatosplenic T-cell lymphoma with leukemic presentation |
Discrepancy in the degree of polycythemia in a family with a novel nonsense EPOR mutation |
Osteosclerotic myeloma without features of POEMS syndrome |
JSH practical guidelines for hematological malignancies, 2018: II. Lymphoma-3. Lymphoplasmacytic lymphoma/Waldenström’s macroglobulinemia (LPL/WM) |
A less-intensive anticoagulation protocol of therapeutic unfractionated heparin administration for pregnant patientsAbstract
Heparin anticoagulant therapy for thromboembolic disorders during pregnancy is problematic due to unexpected adverse bleeding. To avoid bleeding, we have used a less-intensive anticoagulation protocol of unfractionated heparin (UFH). The protocol had a therapeutic activated partial thromboplastin time (APTT) ratio of 1.5–2.0 with the control value, a UFH dose of ≤ 30,000 U/day, and an antithrombin (AT) activity target of ≥ 70%. In the present study, we evaluated this protocol using an anti-Xa assay. We collected UFH-treated plasma samples from ten consecutive pregnant Japanese patients with current or previous thromboembolic disorders. Seven patients remained in the therapeutic APTT ratio range (heparin-sensitive [HS] group). The other three patients had difficulty remaining within the therapeutic range (heparin-resistant [HR] group). In the HR group, two had AT deficiency and one had congenital absence of the inferior vena cava. Of the HS and HR samples, 73% and 31%, respectively, were within the therapeutic anti-Xa activity range 0.3–0.7 U/mL, indicating difficulty for the HR group to remain within the therapeutic range. Neither major bleeding nor symptomatic thromboembolic episodes occurred in either group. These findings suggest that the less-intensive anticoagulation protocol is permissive and may be beneficial in the HS group.
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Vitamin B6 deficiency is prevalent in primary and secondary myelofibrosis patientsAbstract
Vitamin B6 (VB6) deficiency contributes to oncogenesis and tumor progression in certain cancers, and is prevalent in cancer patients in general. VB6 is also an essential element of heme synthesis, and deficiency can lead to anemia. Primary myelofibrosis (PMF) and secondary myelofibrosis (sMF) are myeloproliferative neoplasms often presenting with anemia along with other cytopenias. We performed a prospective study to determine whether PMF and sMF patients suffer from VB6 deficiency, and whether VB6-deficient patients show improvement of anemias with VB6 supplementation. Twelve PMF patients and 11 sMF patients were analyzed. A total of 16 of 23 patients (69.6%) were found to have VB6 deficiency, but VB6 supplementation with pyridoxal phosphate hydrate did not elevate hemoglobin levels in deficient patients. None of the patients presented with vitamin B12, iron, or copper deficiencies. Four patients showed serum folate levels below the lower limit of normal and eight patients showed serum zinc levels below the lower limit of normal; however, these deficiencies were marginal and unlikely to contribute to anemia. Compared to VB6-sufficient patients, VB6-deficient patients showed significantly lower serum folate levels and higher serum copper levels. Studies elucidating the relationship of VB6 deficiency and etiology of PMF/sMF are warranted.
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Serum ferritin levels at diagnosis predict prognosis in patients with low blast count myelodysplastic syndromesAbstract
Serum ferritin, a marker of systemic iron status, is considered a prognostic factor for patients with myelodysplastic syndromes (MDS), despite the lack of supporting evidence. We investigated the association between serum ferritin levels at diagnosis and the prognoses of Japanese MDS patients with bone marrow blasts < 5% and peripheral blood blasts < 2%. Three hundred and ninety patients with cytopenia were registered prospectively in the multicenter database, among whom 107 patients with MDS (72 males and 35 females, with a median age of 70 years) met the eligibility criteria. The median serum ferritin level at diagnosis was 204 ng/mL; we divided the cohort into low (n = 56) and high (n = 51) ferritin groups using a cutoff of 210 ng/mL. Kaplan–Meier analyses revealed that the 3-year overall survival (OS) of the high ferritin group was significantly shorter than that of the low ferritin group (66% and 79%, respectively). The cumulative incidences of leukemic progression were similar between the groups. On multivariate analysis, age, blast percentage, cytogenetic abnormalities, and serum ferritin levels at diagnosis were independently associated with OS in our patients. Thus, modest elevations of ferritin levels at diagnosis may influence the prognoses of patients with MDS who have low blast counts.
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Real-world data on the efficacy and safety of daratumumab treatment in Hungarian relapsed/refractory multiple myeloma patientsAbstract
Daratumumab is a human anti-CD38 monoclonal antibody used in the treatment of refractory and relapsed multiple myeloma. We investigated the efficacy and safety of daratumumab therapy in a real-world setting. Ninety-nine Hungarian patients were included; 48 received monotherapy, while lenalidomide and bortezomib combinations were administered in 29 and 19 cases, respectively. Overall response rate was assessable in 88 patients, with 12 complete, 10 very good partial, 34 partial, and seven minor responses. At a median duration of follow-up of 18.6 months, median progression-free survival (PFS) among all patients was 17.0 months. These values were inferior in the bortezomib combination and monotherapy groups. Patients with early-stage disease (ISS1) had better survival results than those with stage 2 or 3 myeloma (p = 0.009). Heavily pretreated patients had inferior PFS compared to those with 1–3 therapies (p = 0.035). Patients with impaired renal function had PFS results comparable with those having no kidney involvement. There were 10 fatal infections, and the most frequent adverse events were mild infusion-associated reactions and hematologic toxicities. Our results confirm that daratumumab is an effective treatment option for relapsed/refractory MM with an acceptable safety profile in patients with normal and impaired renal function.
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ΩτοΡινοΛαρυγγολόγος Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,
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Δευτέρα 4 Νοεμβρίου 2019
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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
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00302841026182,
00306932607174,
alsfakia@gmail.com,
Anapafseos 5 Agios Nikolaos 72100 Crete Greece,
Medicine by Alexandros G. Sfakianakis,
Telephone consultation 11855 int 1193
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