The mechanisms underlying hepatitis-associated aplastic anaemia (HAAA) that occurs several weeks after the development of acute hepatitis are unknown. A 20-year-old male developed HAAA following living-donor liver transplantation for fulminant hepatitis. The patient's leucocytes lacked HLA-class I due to loss of heterozygosity in the short arm of chromosome 6p (6pLOH).
View Article and Find Full Text PDFA 78-year-old man with prostate squamous cell carcinoma recurrence in his pelvis was admitted to our hospital. Rectal obstruction led to creation of an artificial anus on the transverse colon. Then, docetaxel and radiation therapies were started.
View Article and Find Full Text PDFAntifungal prophylaxis is crucial for successful hematopoietic stem cell transplantation (HSCT). Maintenance therapy with fluconazole (FLCZ) is generally prescribed as secondary prophylaxis in patients with human immunodeficiency virus infection and non-immunocompromised hosts. However, previous reports have revealed that FLCZ is insufficient as a secondary prophylaxis for cryptococcal infection in HSCT cases.
View Article and Find Full Text PDFPurpose: This study aimed to clarify the clinical utility of oral management to prevent bloodstream infections by oral bacteria microbiologically in patients undergoing allogeneic hematopoietic stem cell transplantation (ASCT).
Methods: Ten consecutive patients with hematological malignancies undergoing ASCT were enrolled in this study. We implemented dental treatments before transplantation, if required, and carried out oral hygiene instructions and oral management every other day after transplantation.
A 56-year-old man diagnosed with multiple myeloma was treated with CBD (cyclophosphamide, bortezomib, and dexamethasone; DEX), which was discontinued because of bortezomib-associated adverse events. Thereafter, he was treated with Ld (lenalidomide; LEN+DEX) followed by high-dose chemotherapy with autologous stem cell rescue, resulting in a complete response. Ld as maintenance therapy was discontinued because of immune thrombocytopenia, resulting in disease progression.
View Article and Find Full Text PDFAlmost comparable transplantation outcomes have been reported with HLA-matched unrelated donor transplantation (UDT) and cord blood transplantation (CBT). We conducted a prospective phase 2 study to assess the efficacy and safety of single-unit myeloablative CBT in adult leukemia and myelodysplastic syndrome. Because the day 180 survival of UDT was approximately 80%, we determined the alternative hypothesis of expected day 180 survival with a successful engraftment rate of 80% and set the null hypothesis of threshold rate at 65%.
View Article and Find Full Text PDFA 23-year-old man from Mie Prefecture, Japan, with past and family history of hematuria was diagnosed with influenza A and admitted to our hospital on the following day because of hemoglobinuria. He was diagnosed with thrombotic microangiopathy and was suspected of having atypical hemolytic uremic syndrome (aHUS). C3 p.
View Article and Find Full Text PDFRecent studies have described various impacts of obesity and being overweight on acute myeloid leukemia (AML) outcomes in adult patients, but little is known about the impact of being underweight. We compared the outcomes of underweight patients to those of normal weight and overweight patients. Adult patients with AML who registered in the JALSG AML201 study (n = 1057) were classified into three groups: underweight (body mass index [BMI] < 18.
View Article and Find Full Text PDFHypoplastic myelodysplastic syndrome (hMDS) is a distinct entity with bone marrow (BM) hypocellularity and the risk of death from BM failure (BMF). To elucidate the characteristics of hMDS, the data of 129 patients diagnosed between April 2003 and March 2012 were collected from 20 institutions and the central review team of the National Research Group on Idiopathic Bone Marrow Failure Syndromes, and compared with 115 non-hMDS patients. More RA and fewer CMMoL and RAEB-t in French-American-British (FAB) and more RCUD and MDS-U and fewer RCMD in World Health Organization (WHO) classifications were found in hMDS than non-hMDS with significant differences.
View Article and Find Full Text PDFPulmonary mucormycosis (PM) is a life-threatening fungal infection in patients with hematologic malignancies, and early and accurate diagnostic modalities are urgently needed. We conducted a polymerase chain reaction (PCR) assay targeting these fungi in peripheral blood from four patients with hematologic malignancies who were strongly suspected of having PM. In these four patients, the Rhizopus species was identified in two patients, and the Cunninghamella and Absidia species in one each.
View Article and Find Full Text PDFLeuconostoc species are vancomycin-resistant Gram-positive cocci. Infections due to Leuconostoc species have been reported in various immunocompromised patients, but little is known about such infection in patients with hematologic malignancies. We report a case of Leuconostoc infection in a 44-year-old woman with acute lymphoblastic leukemia.
View Article and Find Full Text PDFBing-Neel syndrome is known as Waldenström's macroglobulinemia with central nervous system infiltration by neoplastic lymphoplasmacytoid and plasma cells. A 74-year-old man was admitted because of progressive cognitive impairment. Serum immunoelectrophoresis showed a monoclonal IgM-kappa component.
View Article and Find Full Text PDFBackground: Blood tacrolimus (TAC) concentration delivered via intravenous administration is known to be influenced by genetic polymorphism of CYP3A5 and interaction with triazole antifungal agents. However, interindividual variability of blood TAC concentration is as of yet still difficult to predict during the early stages of hematopoietic stem cell transplantation (HSCT). This study was conducted to assess the wide variability of blood TAC concentrations because of the hepatic metabolic activities of CYP3A and CYP2C19 in HSCT recipients.
View Article and Find Full Text PDFExophiala dermatitidis is a dematiaceous fungus that is increasingly being identified as a cause of fungal infection especially in patients with immunodeficiency. To date, however, the factors predisposing E. dermatitidis and its optimal treatments have not been fully addressed.
View Article and Find Full Text PDFBackground: A drug interaction between oral tacrolimus (TAC) and lansoprazole (LAN) has been reported in patients with CYP2C19 hetero/homozygous mutations and the CYP3A5 *3/*3 genotype. A PubMed search (implemented March 16, 2011) using search terms drug interaction, tacrolimus, and lansoprazole failed to identify drug interactions in CYP3A5 extensive metabolizers and parenterally administered TAC.
Objective: The purpose of this study was to report a case of drug interaction between intravenously administered TAC and LAN in a patient being treated with voriconazole (VCZ) and harboring CYP2C19 and CYP3A5 heterozygous mutations.
We conducted a prospective randomized study to assess the optimal postremission therapy for adult acute myeloid leukemia in patients younger than 65 years in the first complete remission. A total of 781 patients in complete remission were randomly assigned to receive consolidation chemotherapy of either 3 courses of high-dose cytarabine (HiDAC, 2 g/m(2) twice daily for 5 days) alone or 4 courses of conventional standard-dose multiagent chemotherapy (CT) established in the previous JALSG AML97 study. Five-year disease-free survival was 43% for the HiDAC group and 39% for the multiagent CT group (P = .
View Article and Find Full Text PDFWe conducted a multi-institutional randomized study to determine whether high-dose daunorubicin would be as effective as standard-dose idarubicin in remission-induction therapy for newly diagnosed adult patients younger than 65 years of age with acute myeloid leukemia. Of 1064 patients registered, 1057 were evaluable. They were randomly assigned to receive either daunorubicin (50 mg/m(2) daily for 5 days) or idarubicin (12 mg/m(2) daily for 3 days) in combination with 100 mg/m(2) of cytarabine by continuous infusion daily for 7 days as induction therapy.
View Article and Find Full Text PDFStudy Objective: To investigate whether a drug interaction exists between bortezomib and the cytochrome P450 (CYP) 3A4 inhibitor itraconazole and/or the CYP2C19 inhibitor lansoprazole that results in increased severity of bortezomib-induced peripheral neuropathy and thrombocytopenia.
Design: Retrospective medical record review.
Setting: Hematology-oncology ward of a university-affiliated hospital in Japan.
This study aimed to assess the clinical utility of PCR for the analysis of bacteria and fungi from blood for the management of febrile neutropenic patients with hematologic malignancies. Using a PCR system able to detect a broad range of bacteria and fungi, we conducted a prospective pilot study of periodic analyses of blood from patients following intensive chemotherapy. When fever occurred, it was treated with empirical antibiotic therapy, basically without knowledge of the PCR results.
View Article and Find Full Text PDFAutologous peripheral blood stem cell transplantation (auto-PBSCT) is considered the standard therapy for younger patients with multiple myeloma, however, survival curve doesn't reach plateau. On the other hand, allogeneic reduced-intensity stem cell transplantation (RIST) with graft-versus-myeloma (GVM) effects is expected to be the curable therapy. We had three cases received RIST (one case as a salvage therapy for relapse after tandem auto-PBSCT, and two cases as an intentional RIST after achieving partial response by auto-PBSCT).
View Article and Find Full Text PDFDeletion of the long arm of chromosome 15 is known as a rare but recurrent chromosomal abnormality in myeloid malignancies. We report a novel case of minimally differentiated hypoplastic acute myeloid leukemia (AML M0) in a patient who initially had a normal karyotype, but clonal interstitial deletion of chromosome 15, del(15)(q11.2q22), coincided with increment of leukemic cells a year later.
View Article and Find Full Text PDFIntra-bone marrow injection is a novel strategy for hematopoietic stem cell transplantation. Here, we investigated whether ex vivo culture of cord blood hematopoietic stem/progenitor cells influences their reconstitution in bone marrow after intra-bone marrow transplantation. Freshly isolated AC133(+) cells or cells derived from AC133(+) cells cultured with cytokines (stem cell factor, flt-3 ligand, and thrombopoietin) for 5 days were injected into the bone marrow of the left tibia in irradiated NOD/SCID mice.
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