Kouhei Yamamoto

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When pDHA4, a vector carrying all five pfaA-pfaE genes responsible for docosahexaenoic acid (DHA; 22:6) biosynthesis in Moritella marina MP-1, was coexpressed in Escherichia coli with the individual pfaA-pfaD genes for eicosapentaenoic acid (EPA; 20:5) biosynthesis from Shewanella pneumatophori SCRC-2738, both polyunsaturated fatty acids were synthesized(More)
We developed a high-performance programmable SISO decoder LSI for decoding Turbo codes based on the SW-LogBCJR algorithm. This LSI is based on the original architecture and memory management method, which guarantees the order of the soft-output to be the same as soft-input without attaching LIFO memory. Moreover, we propose new accurate implementation on(More)
New app1ication.a th.at support cooperative work of users on. distributed computers often share perai9ten.t data atru.cturea that con,tain poinders. For th.eae app1ication.a. th,e un.derlyin,g system, often wea th,e “page aenler” arch,itecture. in which th,e persistent data are ah.ipped from th.e server on a page basis, ad clients cache th,e pagea for(More)
To investigate the regulatory mechanisms of angiogenesis in the development of myelodysplastic syndromes (MDS) and its progression to overt leukaemia (OL), bone marrow samples from control, paired samples from MDS patients before and after transformation to OL (MDS --> OL) and de novo acute myeloid leukaemia (AML) were analysed. Immunohistochemical staining(More)
Bone marrow cells of patients with myelodysplastic syndromes (MDS) frequently undergo apoptosis, though the apoptotic cell ratio decreases when overt leukemia (OL) develops. Thus, we compared the expression of the inhibitor of apoptosis protein (IAP) gene family proteins in bone marrow samples from control, MDS, OL transformed from MDS (MDS --> OL), and de(More)
It is well-known that leukemic cells of overt leukemia (OL) that have transformed from myelodysplastic syndromes (MDS) are more resistant to chemotherapy as compared with de novo AML cells. Thus, to examine the expression levels of drug-resistant genes and their alterations with the development of OL in MDS, the expression of mRNA for MDR1 and LRP was(More)
An original gas chromatography/mass spectrometry method for quantifying trace amounts of ricinoleic acid (12-hydroxy-cis-9-octadecenoic acid) is detailed. Data are presented on trace amounts of ricinoleic acid found in several common vegetable oils and oils extracted from common oil seeds: e.g., ca. 30 ppm in commercial olive oil was the lowest amount; and(More)
Only a few reports have described regression of rectal mucosa-associated lymphoid tissue (MALT) lymphoma after antibiotic treatment are generally found to be successful for gastric tumors. We examined eight rectal MALT lymphomas treated with antibiotic treatments to determine whether they regressed after treatment. We also discuss the relationship between(More)
AIMS   Multidrug resistance (MDR) in B-cell lymphomas still constitutes a major obstacle to the effectiveness of chemotherapy even in the anti-CD20 antibody therapy era. The aim of this study was to investigate the expression of MDR-associated molecules in reactive lymphadenopathy (RL), follicular lymphoma (FL), and diffuse large B-cell lymphoma (DLBCL). (More)
Hydrogen peroxide (H(2)O(2)) promotes seed germination of cereal plants and ascorbic acid which acts as antioxidant suppresses the germination of wheat seeds, but the role of H(2)O(2) scavenging on germination during seed maturation has not been demonstrated. We investigated relationship of germination, ascorbate, H(2)O(2) scavenging enzymes and sensitivity(More)