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Uchida T, Yui T, Umezu H, Kariyone S. Prolongation of Platelet Survival in Idiopathic Thrombocytopenic Purpura by High-Dose Intravenous Gamma Globulin. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1661021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryThe mechanism of the increase of platelet counts after the intravenous injection of high dose gammaglobulin was evaluated by measuring platelet survival before and after the injection. The platelet survival after treatment prolonged more significantly than that before treatment. There was no evidence of platelet release from bone marrow to peripheral blood. These findings might suggest the inhibition of platelet destruction by transient blockade of reticuloendothelial system.
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Affiliation(s)
- T Uchida
- The First Department of Internal Medicine, Fukushima Medical College, Fukushima, Japan
| | - T Yui
- The First Department of Internal Medicine, Fukushima Medical College, Fukushima, Japan
| | - H Umezu
- The First Department of Internal Medicine, Fukushima Medical College, Fukushima, Japan
| | - S Kariyone
- The First Department of Internal Medicine, Fukushima Medical College, Fukushima, Japan
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2
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Hirose J, Yokoi H, Yui T, Fujihara H, Suenaga H, Furukawa K. Improved enantioselectivity of monooxygenation catalyzed by engineered biphenyl dioxygenase. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Yamamoto A, Yui T, Kobayashi K, Kawano Y, Hayashi M. [A newborn with multiple cerebral infarction probably due to the right-to-left shunt associated with Ebstein's anomaly and atrial septal defect]. No To Hattatsu 2008; 40:334-336. [PMID: 18634422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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4
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Abstract
The crystal structures of chitosan acid salts were studied by X-ray diffraction measurements on a fiber diagram and a new procedure to obtain an anhydrous polymorph of chitosan was found. The salts prepared by immersing a chitosan into a mixture of acid solution and isopropanol were classified into two types (Types I and II) depending on their conformation. Molecular conformation of the Type I salt retains the extended 2-fold helical structure of the original chitosan, but that of Type II salt is a twisted 2-fold helix. All the Type II salts changed to the anhydrous "Annealed" polymorph of chitosan when soaking in 75% aqueous isopropanol, but when the Type I salts were immersed in the solution, they returned to the hydrated "Tendon" polymorph which is that of the original chitosan. The strange transformation observed in Type II salt may be related to the stability of the molecular conformation of chitosan in the salt.
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Affiliation(s)
- J Kawada
- Research Institute for Advanced Science and Technology, Osaka Prefecture University, Sakai, Japan
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5
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Ikeda K, Shichishima T, Yui T, Sakai K, Ohtake A, Ishibashi T, Noji H, Maruyama Y. Immune thrombocytopenia in an elderly patient treated successfully by pulse therapy with cyclophosphamide. Fukushima J Med Sci 2001; 47:33-8. [PMID: 11764416 DOI: 10.5387/fms.47.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Thrombocytopenia due to immune mechanisms is rare and difficult to manage in elderly patients. We describe a case of an 89-year-old female with severe immune thrombocytopenia (ITP) who rapidly improved by pulse therapy with cyclophosphamide. She was admitted to our hospital because she had arthralgia in both sides of her femoral region since January 1999, aphthous stomatitis and ecchymosis of the leg since April 1999, and bloody phlegm in July 1999. On admission, her peripheral blood count revealed severe thrombocytopenia (0.1 x 10(4)/microl). Her megakaryocyte count from bone marrow was increased to 512/microl without abnormal cells. Systemic lupus erythematosus was suspected because of strong positive protein in the urine in addition to the clinical and hematological findings described above, but she was negative for all the autoantibodies examined. Finally, she was diagnosed as having ITP on the basis of high platelet associated immunoglobulin G in addition to hematological and physical findings and she was treated with prednisolone. It was difficult to maintain her platelet count with only prednisolone, but 600 mg of cyclophosphamide rapidly increased her platelet count in spite of tapering the prednisolone. In September 2000, her platelet count was kept within normal limits by administration of 15 mg/day of prednisolon. It is suggested that immunosuppressive therapy for ITP using high-dose cyclophosphamide is useful in elderly patients as well as in juvenile adult patients.
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Affiliation(s)
- K Ikeda
- Department of Internal Medicine I, Fukushima Medical University School of Medicine, Fukushima City, Japan
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6
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Yui T, Goto K, Kawano Y, Ogawa K. Molecular modeling study of highly branching (1-->3)-alpha-D-glucan, a model polysaccharide for cariogenic glucan, using the N-H mapping method. Biosci Biotechnol Biochem 2000; 64:52-60. [PMID: 10705448 DOI: 10.1271/bbb.64.52] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A systematic search for possible regular helical structures of a highly branching (1-->3)-alpha-D-glucan was done using the n-h mapping technique, combined with MM3-generated relaxed-residue energy map calculations with respect to the conformations of the backbone glycosidic linkages. The alpha-D-glucan, consisting of a (1-->3)-alpha-linked backbone with alpha-D-glucose side residues attaching to an O6 atom of every second backbone residue, was considered as a model polysaccharide of a branching part of the glucan produced by oral bacteria, which was known to be related to dental plaque formation and to contribute to dental caries. The potential energy surfaces of the trisaccharide repeating unit of the branching alpha-D-glucan indicated that (1-->6)-alpha-linked side residues did not appear to interfere significantly with the backbone stereochemistry, probably due to a further separation of the three-bond-linked side residue compared with an ordinary two-bond-linked residue. Based on the n-h maps of the branching alpha-D-glucan, the side residues, when involved in a complete helix, mostly contributed additional stabilizations to particular helical structures. It was found by checking the typical helix models that formation of hydrogen bonds involving side residues was probably a major cause of the stabilization. This hydrogen bonding was expected to increase insolubility for the glucan chain--a typical, physical property observed for the bacterial alpha-D-glucan--by introducing its backbone stereochemistry as an additional stiff feature.
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Affiliation(s)
- T Yui
- Faculty of Engineering, Miyazaki University, Japan.
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7
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Abstract
Possible regular helix models of beijeran, a new acidic heteropolysaccharide consisting of a trisaccharide as a repeating unit, were investigated. Conformational analyses of the three component disaccharides were first carried out by calculating their relaxed-residue energy maps with respect to the glycosidic bond rotations, phi and psi. A search for possible beijeran chain conformations was carried out by calculating the two-dimensional map of the helix parameters; n (the number of asymmetric units per a fiber repeat) and h (the axial rise per the unit), on the basis of the phi-psi conformations taken from the low energy regions of each of the three energy maps. The n-h values of the helix models with low steric energies were mostly found to be around the experimental values (n = 2 and h = 1.20-1.25 nm), which may support the present methodology. It was also suggested that the internal flexibility of beijeran chain allowed it to conform in diverse helical structures, each of which were reasonably in accord with the observed n-h values. The three representative helix models were finally proposed for the beijeran chain conformation in the crystal structure.
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Affiliation(s)
- T Yui
- Faculty of Engineering, Miyazaki University, Japan.
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8
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Abstract
The present study reports the re-examination of the crystal structure of mannan I by the X-ray powder diffraction study combined with the miniature crystal model simulation. A primary objective of this study was to investigate an adequate chain staggering position along the fiber axis. Among the several crystal structure models proposed for mannan I, that derived from the electron diffraction study of the single crystals was adopted as a starting model. The X-ray crystallographic residuals were calculated for the single crystal structure at different chain staggering positions, while the ab projection was kept invariant. In a similar fashion, the miniature crystal models consisting of seven mannotetraoses were constructed, each having different chain staggering values and the three-dimensional structures of all the models were subsequently optimized by using the MM3(92) program without introducing any constraint. Both the X-ray residual and lattice energy plots with respect to the chain staggering position showed the common minima around the -0.25 x c chain staggering. The minimum models were subjected to a search for preferred orientations of O2 and O6 hydroxyl groups. It was found that the hydroxyl groups present inside the minicrystal tended to rotate into particular orientations during the structure optimizations to form the O5-H-O2 and O3-H-O6 intermolecular hydrogen bonds between the adjacent oligomers in an alternative direction.
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Affiliation(s)
- T Yui
- Department of Materials Science, Miyazaki University, Japan.
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9
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Abstract
X-Ray fiber diffraction patterns were obtained from oriented films of sodium salts of a new uronic acid-containing polysaccharide (beijeran) both in its native, poly [-->3)-alpha-D-GalA-(1-->3)-beta-L-Rha-(1-->3)-alpha-D-Glc-O6Ac-(1 -->], and deacetylated forms. Initially the stretched films of both polysaccharides were amorphous, but the crystallinity was much improved by annealing at high temperature. The deacetylated specimen had higher crystallinity than the native. Both films showed similar X-ray fiber patterns indicating that these polysaccharides had similar unit cell dimensions and that the O-acetyl groups in the native beijeran chain did not disturb the regular array in the crystal having space group P21. All the visible reflections could be indexed in terms of a monoclinic unit cell with dimensions a = 1.277, b = 1.611, c (fiber axis) = 2.437 nm, and gamma = 96.79 degrees. The fiber axis length and the presence of (002) and (006) reflections indicated that the conformation was made up of two trisaccharide residues, in an extended two-fold helix.
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Affiliation(s)
- K Ogawa
- Research Institute for Advanced Science and Technology, Osaka Prefecture University, Japan
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Abstract
A well-defined X-ray fiber diffraction pattern was obtained from a stretched film of the calcium salt of a new uronic acid containing polysaccharide designated as beijeran in the deacetylated form, poly[-->3)-alpha-D-GalUA-(1-->3)-beta-L-Rham-(1-->3)-alpha-D -Glc-(1-->]. The oriented film showed no diffraction spots, indicating it to be amorphous. However, when annealed at high temperature, the film exhibited high crystallinity. All the visible reflections could be indexed in terms of a monoclinic unit cell with the following dimensions: a = 1.297; b = 1.676; c (fiber axis) = 2.509 nm; and gamma = 106.50 degrees. The length of the fiber axis and the absence of meridional reflections at any odd layer line indicate that an extended two-fold helical conformation was made up of two trisaccharide residues.
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Affiliation(s)
- K Ogawa
- Research Institute for Advanced Science and Technology, Osaka Prefecture University, Japan
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12
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Yui T, Imada K, Shibuya N, Ogawa K. Conformation of an arabinoxylan isolated from the rice endosperm cell wall by X-ray diffraction and a conformational analysis. Biosci Biotechnol Biochem 1995; 59:965-8. [PMID: 7613013 DOI: 10.1271/bbb.59.965] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The chain conformation of an arabinoxylan isolated from the rice endosperm cell wall, which was composed of the linear backbone of a 1,4-linked beta-xylose residue highly substituted at the C3 position with alpha-L-arabinofuranose, was studied by X-ray fiber diffraction and a conformational analysis. From the X-ray results the polysaccharide was suggested to take an extended left-handed, three-fold helical structure which is not a desirable conformation to make a complex firmly associated with cellulose or xyloglucan that was elucidated to be present in the cell wall. A conformational analysis, using the PFOS force field for the O-alpha-L-arabinofuranose-(1-->3)-beta-D-xylose residue and O-alpha-L-arabinofuranose-(1-->3)-[(1-->4)-beta-D-xylose residue]3, in which the arabinose residue was linked to the C3 position of the middle residue of the xylotriose residue, and using the PS79 computer program for the arabinoxylan indicated that the backbone xylan chain could not take a two-fold helix similar to that of cellulose because of significant steric interaction between the arabinose side chain and the backbone. Thus, the left-handed, three-fold helix was found to be reasonable.
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Affiliation(s)
- T Yui
- Department of Materials Science, Miyazaki University, Japan
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13
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Ogawa K, Dohmaru T, Yui T. Dependence of complex formation of (1-->3)-beta-D-glucan with congo red on temperature in alkaline solutions. Biosci Biotechnol Biochem 1994; 58:1870-2. [PMID: 7765513 DOI: 10.1271/bbb.58.1870] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The formation of a complex between (1-->3)-beta-D-glucan and congo red in dilute alkaline solutions (0.1 and 0.15 M sodium hydroxide) where the glucan takes an ordered conformation was studied by measuring visible absorption spectra of the solutions at various temperatures between 15 and 35 degrees C. The average number of the glucose residues forming the binding site to accommodate one dye molecule decreased with increasing temperature or decreasing alkaline concentration, suggesting possible conformational changes of the glucan chain. The complex formation constant, K, increased with increasing temperature, and thermodynamical parameters, delta H degrees and delta S degrees, for the complex formation in 0.1 M and 0.15 M aqueous NaOH solutions were obtained at 25 degrees C to be 14 kcal/mol and 77 e.u. (0.1 M), and 12 kcal/mol and 68 e.u. (0.15 M), respectively. These results indicate that the driving force for the complex formation is entropic in nature stemming from the decrease of "iceberg formation".
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Affiliation(s)
- K Ogawa
- Research Institute for Advanced Science and Technology, University of Osaka Prefecture, Japan
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Shimada Y, Nagao T, Sugihara A, Iizumi T, Yui T, Nakamura K, Fukase T, Tominaga Y. Cloning and sequence analysis of an esterase gene from Pseudomonas sp. KWI-56. Biochim Biophys Acta 1993; 1174:79-82. [PMID: 8334166 DOI: 10.1016/0167-4781(93)90095-u] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The gene encoding an esterase from Pseudomonas sp. KWI-56 was cloned and sequenced. The nucleotide sequence contained an open reading frame encoding a polypeptide comprising 262 amino acids, whose molecular weight agreed well with the value obtained by SDS-PAGE. Comparison of the amino acid sequence with those of the other homologous enzymes suggested that Ser-92 and His-24l might be included in the catalytic triad.
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Affiliation(s)
- Y Shimada
- Osaka Municipal Technical Research Institute, Japan
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15
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Abstract
The crystal structure of the hydrated form of (1----3)-alpha-D-mannan, obtained by solid-state deacetylation of the partially O-acetylated mannan, was analyzed by combined X-ray diffraction and stereochemical-model refinement techniques. The structure crystallizes in a four-chain, monoclinic unit cell with parameters a = 11.33 A, b = 18.36 A, c (fiber repeat) = 8.25 A, and gamma = 101.75 degrees, and the most probable space group is P2(1). In the most probable structure the chain-backbone conformation is a two-fold helix, but with all four O-6 rotational positions nonequivalent. The chains pack with antiparallel polarity and are connected by pairs of intermolecular hydrogen bonds that form an infinite, zig-zag sheet. There are 16 water molecules in the unit cell, generally embedded between the sheets in crystallographic positions, providing additional hydrogen bonding and establishing a three-dimensional hydrogen-bond network in the crystal structure. The reliability of the structure analysis is indicated by the X-ray residual R" = 0.281, based on 98 hkl reflection intensities.
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Affiliation(s)
- T Yui
- Chemistry Department, State University of New York, College of Environmental Science and Forestry, Syracuse 13210
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16
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Abstract
A probable crystal structure of konjac glucomannan (mannose:glucose ratio = 1.6) is proposed based on X-ray data and constrained linked-atom least-squares model refinement. The structure crystallizes in the mannan II polymorphic form, in an orthorhombic unit-cell with a = 9.01 A, b = 16.73 A, c (fiber axis) = 10.40 A, and a probable space group I222. The backbone conformation of the chain is a two-fold helix stabilized by intramolecular O-3-O-5' hydrogen bonds, with the O-6 rotational position gt. The unit cell contains four chains with antiparallel packing polarity and eight water molecules which reside in crystallographic positions. Intermolecular hydrogen bonds occur exclusively between chains and water molecules, establishing a three-dimensional hydrogen-bond network in the crystal structure. The glucose residues replace mannoses in the structure in isomorphous fashion, although some disorder appears possible. A structure having alternating gg-gt O-6 rotational positions and conforming to space group P222 appears to describe the disorder regions of the crystal. The reliability of the structure analysis is indicated by the X-ray residuals R = 0.276 and R" = 0.223.
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Affiliation(s)
- T Yui
- Chemistry Department, State University of New York, College of Environmental Science and Forestry, Syracuse 13210
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17
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Abstract
A crystal and molecular structure for GTA I, the low temperature polymorph of (1----3)-alpha-D-glucan triacetate, is proposed on the basis of X-ray diffraction analysis of well-oriented films, combined with stereochemical model refinement. The unit cell is monoclinic with parameters a = 30.17 A, b = 17.42 A, c (fibre axis) = 12.11 A, and beta = 90 degrees C. The probable space group is P2(1) with b axis unique. Six molecular chains pass through the unit cell with alternating polarity and with three independent chains comprising the asymmetric unit. The chain axes are located in a hexagonal packing arrangement. The chain backbone conformation is a left-handed, three-fold helix, but all nine O(6) acetyl groups of the asymmetric unit are in non-equivalent rotational positions. The most probable structure is indicated by X-ray residuals R = 0.261 and R" = 0.283, based on 62 reflection intensities (41 observed and 21 unobserved).
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Affiliation(s)
- T Yui
- Chemistry Department, State University of New York, College of Environmental Science and Forestry, Syracuse 13210
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Shiga Y, Yokoyama A, Ishibashi T, Shichishima T, Abe R, Yui T, Kimura H, Matsuda S, Uchida T, Kariyone S. [Bone marrow aplasia without blast crisis in a case of CML of 10-year survival]. Rinsho Ketsueki 1989; 30:752-6. [PMID: 2795887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A case of chronic myelogenous leukemia (CML) of 10-year survival in described. A 44-year old male was admitted to our hospital because of general malaise, abdominal fullness and fever in February, 1977. On physical examination, giant splenomegaly and hepatomegaly were detected. Peripheral blood examination revealed leukocytosis without hiatus leukemia , normochromic macrocytic anemia and thrombocytosis. NAP rate and score were 16% and 22. Cytogenetic analysis of PB without stimulator revealed 46, XY, Ph1. Then he was diagnosed as having a typical type of Ph1-positive CML. He had been successfully treated over 9 years by intermittent administration of busulfan. However, anemia suddenly progressed in February, 1986 followed by leukopenia and thrombocytopenia. Hemorrhage was not detected by the examination. Though he had been received blood transfusion, the anemia progressed rapidly. He was died of cachexia on 4th of August, 1987. The postmortem examination revealed bone marrow aplasia with no signs of blast crisis nor myelofibrosis. Secondary hemochromatosis was seen in the liver, spleen, pancreas and some other organs.
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MESH Headings
- Adult
- Anemia, Aplastic/pathology
- Blast Crisis
- Bone Marrow/pathology
- Busulfan/therapeutic use
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myeloid, Chronic-Phase/drug therapy
- Leukemia, Myeloid, Chronic-Phase/pathology
- Male
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Uchida T, Midorikawa J, Takeda H, Shichishima T, Higuchi T, Yui T, Kimura H, Matsuda S, Kariyone S. Signet cell carcinoma of the stomach in a patient with acquired immunodeficiency syndrome: a case report. Jpn J Clin Oncol 1989; 19:75-8. [PMID: 2537909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
A case of signet cell carcinoma associated with AIDS is presented. A 50-year old Japanese man with hemophilia A was suffering from human immunodeficiency virus (HIV) infection, the result of multiple injections of clotting factor concentrates. A diagnosis of signet cell carcinoma of the stomach was reached upon endoscopic and histological examinations. Opportunistic infections of esophageal candidiasis and candida septicemia occurred. The patient died of repeated gastrointestinal bleeding and cachexia. Although there is a possibility of the patient having a coincidential carcinoma along with AIDS, the HIV infection, perhaps, had a role in causing signet cell cercinoma.
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Affiliation(s)
- T Uchida
- First Department of Internal Medicine, Fukushima Medical College
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20
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Ogawa K, Shineha H, Abe R, Shichishima T, Kimura H, Yui T, Kawaguchi M, Matsuda S, Uchida T, Kariyone S. [Acute promyelocytic leukemia with a history of RAEB in transformation and the 15/17 translocation]. Rinsho Ketsueki 1989; 30:67-71. [PMID: 2716201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A 34-year old female was admitted to our clinic because of fever and general fatigue on March 26, 1987. On admission, peripheral blood (PB) revealed pancytopenia. Bone marrow smears revealed 9. 0% of promyelocytic cells with or without Auer rods. Diagnosis of RAEB in transformation was made. Chromosome study of the bone marrow cells showed t(15; 17) in 3 out of 20 cells analysed. After 3 months, the leukemic cells were observed in PB and increased in number. Then the patient showed bleeding tendency and fibrin degradation products (FDP) increased up to 40 micrograms/ml. And the leukemic cells were over 30% in PB at the end of July, 1987. The diagnosis of APL with DIC was made. To our knowledge, this is the first case of APL with a history of MDS with t(15; 17).
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MESH Headings
- Adult
- Anemia, Refractory, with Excess of Blasts/genetics
- Anemia, Refractory, with Excess of Blasts/pathology
- Cell Transformation, Neoplastic/pathology
- Chromosomes, Human, Pair 15
- Chromosomes, Human, Pair 17
- Disseminated Intravascular Coagulation/complications
- Female
- Humans
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/pathology
- Translocation, Genetic
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Uchida T, Kokubun K, Abe R, Kimura H, Yui T, Matsuda S, Kariyone S. Ferrokinetic evaluation of erythropoiesis in patients with myelodysplastic syndromes. Acta Haematol 1988; 79:81-3. [PMID: 3124477 DOI: 10.1159/000205725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Erythropoietic activity in patients with myelodysplastic syndrome (MDS) was evaluated by ferrokinetic measurements. Since the conventional plasma iron turnover of MDS patients increased with plasma iron levels after multiple blood transfusions, erythron transferrin uptake was chosen as a parameter of erythroid marrow activity. Although a correlation was shown between plasma iron level and plasma iron turnover (r = 0.50, 0.01 less than p less than 0.02), no correlation existed between the plasma iron level and erythron transferrin uptake (r = 0.25, p greater than 0.1). Erythron transferrin uptake, independent of plasma iron, was significantly higher in MDS patients than in normal subjects (110.6 +/- 67.6 and 67.6 +/- 18.8 mumol/l/dl, respectively; 0.01 less than p less than 0.02). An increased erythropoiesis occurring concomitantly with morphologically normal or increased erythroid cellularity was demonstrated in patients with MDS. The measurement of erythron transferrin uptake might be valuable as an accurate expression of erythroid activity in the hyperferremic state.
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Affiliation(s)
- T Uchida
- First Department of Internal Medicine, Fukushima Medical College, Japan
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22
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Kudo T, Tsuchihashi N, Yui T, Mitsugashira T, Kaji H, Yoshihara K. Application of the sum peak method to determine the perturbed angular correlation parameters in biological specimens. Int J Rad Appl Instrum A 1988; 39:131-4. [PMID: 2833470 DOI: 10.1016/0883-2889(88)90158-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The counting rate of a sum peak formed by two gamma-ray emissions in radioactive decay of a nuclide depends on its integral attenuation factor G22. Therefore, in the "sum peak method", the G22 value for the specimen in question can be obtained merely from sum peak measurements using one radiation detector when the resolution time and the geometry are fixed. The procedure to determine the G22 values is described for specimens containing 111In, together with the detailed relationships between the sum peak counting rates and the values of G22.
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Affiliation(s)
- T Kudo
- RI Laboratory, Fukushima Medical College, Japan
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23
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Matsuda S, Shineha H, Kanbayashi H, Sakai K, Higuchi T, Kawaguchi M, Kimura H, Yui T, Uchida T, Kariyone S. [Splenic irradiation in a case of chronic lymphocytic leukemia]. Rinsho Ketsueki 1987; 28:1817-22. [PMID: 3452647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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24
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Matsuda S, Shineha H, Kokubun K, Yoshida M, Sakai K, Yui T, Kimura H, Uchida T, Kariyone S. [Daunomycin-induced cardiogenic shock in a case of acute myelogenous leukemia]. Rinsho Ketsueki 1987; 28:1680-5. [PMID: 3481411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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25
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Uchida T, Yui T. [Pathophysiology and treatment of thrombosis. (5) An attempt at the diagnosis of thrombosis by radio-labeled platelets]. Nihon Naika Gakkai Zasshi 1987; 76:38-42. [PMID: 3106540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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26
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Kudo T, Tsuchihashi N, Yui T, Mitsugashira T, Kaji H, Yoshihara K. Sum peak method applied to the study of human platelet cells. Int J Rad Appl Instrum A 1987; 38:123-7. [PMID: 3032860 DOI: 10.1016/0883-2889(87)90007-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The sum peak method based on the phenomenon of perturbed angular correlation was applied to study the chemical environments of 111In in intact platelet cells. The sum peak appearing in the gamma-ray spectrum of 111In which emits two gamma-rays in cascade was observed for 111InCl3 solutions and 111In-labeled platelets. An increase in intensity ratios of the sum peak to its single peak was found when 111In incorporated into platelets from its aqueous solution. This fact was discussed in terms of physico-chemical environments of 111In together with an evaluation of sum peak analysis in the spectra.
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27
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Matsuda S, Uchida T, Takagi Y, Konno M, Kanbayashi H, Yoshida M, Mita M, Kimura H, Satoh T, Yui T. [Kinetic studies on indium-111-oxine labelled lymphocytes from patients with chronic lymphocytic leukemia]. Nihon Ketsueki Gakkai Zasshi 1986; 49:653-60. [PMID: 3094311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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28
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Matsuda S, Yoshida M, Kanbayashi H, Kimura H, Satoh T, Yui T, Uchida T, Kariyone S, Asahina S. [Acquired immunodeficiency syndrome in a patient with hemophilia A]. Nihon Ketsueki Gakkai Zasshi 1986; 49:717-24. [PMID: 3766068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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29
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Sato T, Shiga Y, Takeda H, Yui T, Kimura H, Matsuda S, Uchida T, Kariyone S, Segami H, Abe M. [IBL-like T cell lymphoma with helper T cell phenotype in a case of myelodysplastic syndrome]. Rinsho Ketsueki 1986; 27:612-6. [PMID: 2942714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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30
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Abstract
Vitamin E plays an important role in protecting fat tissue from peroxidation. Platelet survival was compared among vitamin E deficient, control and alpha-tocopheryl nicotinate supplemented rats. The mean tocopherol level in the sera of the rats fed vitamin E deficient diet for two months was 21.5% of control, and the lipoperoxide level in the sera of these animals had not significantly (p greater than 0.05) increased. Platelet aggregation was not accelerated significantly (p greater than 0.05) after exposure to a concentration of 10 microM of ADP used as an aggregating agent. The rate of platelet survival was determined by the 51Cr-labeling technique. The survival rates were all normal in vitamin E deficient, control and alpha-tocopheryl nicotinate supplemented rats, with no significant difference (p greater than 0.1) among the groups. These results suggest that depletion of vitamin E per se does not shorten the periods of platelet survival.
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31
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Uchida T, Kodama A, Takezawa M, Kijima M, Miyazaki Y, Yui T, Ono K, Ohwada K, Kariyone S. [Glycogen storage disease associated with glycogen deposition in skeletal and heart muscles with low muscle phosphorylase activity]. Nihon Naika Gakkai Zasshi 1985; 74:945-51. [PMID: 3863867 DOI: 10.2169/naika.74.945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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32
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Yui T, Muroi S. [Determination of blood platelet survival]. Rinsho Byori 1985; Spec No 62:32-45. [PMID: 3928949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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33
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Uchida T, Matsuda S, Kimura H, Satoh T, Yui T, Abe R, Shichishima T, Takagi Y, Ishibashi T, Kokubun K. [Anemia with chronic myelocytic leukemia]. Rinsho Ketsueki 1984; 25:1073-6. [PMID: 6594533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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34
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Uchida T, Yui T, Umezu H, Kariyone S. Prolongation of platelet survival in idiopathic thrombocytopenic purpura by high-dose intravenous gamma globulin. Thromb Haemost 1984; 51:65-6. [PMID: 6539001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The mechanism of the increase of platelet counts after the intravenous injection of high dose gammaglobulin was evaluated by measuring platelet survival before and after the injection. The platelet survival after treatment prolonged more significantly than that before treatment. There was no evidence of platelet release from bone marrow to peripheral blood. These findings might suggest the inhibition of platelet destruction by transient blockade of reticuloendothelial system.
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35
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Yanagisawa S, Uchida T, Muroi S, Yui T, Shichishima T, Suzuki T, Matsuda S, Yoshida H, Kariyone S. [A family study of storage pool disease]. Rinsho Ketsueki 1984; 25:217-24. [PMID: 6471432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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36
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Uchida T, Yui T. Platelet kinetics in idiopathic thrombocytopenic purpura. Nihon Ketsueki Gakkai Zasshi 1983; 46:1526-40. [PMID: 6687099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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37
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Kijima M, Yanagisawa S, Saito T, Yui T, Takezawa M, Miyazaki Y, Ono K, Ohwada K, Machii K, Kariyone S. [Rhabdomyosarcoma of the heart involving the left ventricle and left atrium]. J Cardiogr 1983; 13:193-200. [PMID: 6644108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A case of rhabdomyosarcoma of the left atrium and left ventricle demonstrated by echocardiography was reported. A 31-year-old man was admitted to our hospital for evaluation of recently developed exertional dyspnea. A holosystolic murmur and a protodiastolic sound were audible at the apex. A chest X-ray showed pulmonary congestion without cardiomegaly. The two-dimensional echocardiogram showed a dense stratified mass of echoes occupying the medial half of the left ventricular cavity, and a part of the abnormal mass of echoes was observed to move toward the left ventricular outflow tract during systole. Another small mass attached to the anterior mitral leaflet was also observed to prolapse partly into the left atrium during systole. The interatrial septum showed a thick and hard band of echo in the short-axis view. Right cardiac catheterization revealed pulmonary hypertension and the levogram of the pulmonary angiography showed left atrial and left ventricular filing defects. The repeated echocardiographic study showed the growth of the abnormal mass. The patient underwent operation, but he died of congestive heart failure thereafter. The necropsy diagnosis was rhabdomyosarcoma of the heart, involving the left atrium and left ventricle.
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38
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Matsuda S, Uchida T, Yui T, Kariyone S. [Organ distribution of 111In-oxine labeled lymphocytes in normal subjects and in patients with chronic lymphocytic leukemia and malignant lymphoma]. Kaku Igaku 1982; 19:1497-510. [PMID: 6820400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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39
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Matsuda S, Shichishima T, Kimura H, Sato T, Yui T, Uchida T, Kariyone S, Abe M. [A case of adult T-cell leukemia with a huge splenomegaly, pancytopenia and prolymphocytosis after splenectomy]. Rinsho Ketsueki 1982; 23:1600-6. [PMID: 6984089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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40
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Yui T, Uchida T, Matsuda S, Muroi S, Sato M, Kijima M, Ebitani S, Iwaya K, Machii K, Kariyone S, Iwaya F, Hoshino S. [Detection of intracardiac thrombi by scintiphotography with 111-In labeled autologous platelets (author's transl)]. Kokyu To Junkan 1982; 30:401-10. [PMID: 7100683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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41
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Yui T, Uchida T, Matsuda S, Iwaya K, Umino M, Ono K, Muroi S, Owada K, Machii K, Kariyone S. Detection of platelet consumption in aortic graft with 111In-labeled platelets. Eur J Nucl Med 1982; 7:77-9. [PMID: 6211359 DOI: 10.1007/bf00251648] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Increased platelet consumption in two patients with aortic graft was detected by scintiphotography using 111In-labeled autologous platelets. There was shortened platelet survival time in these patients. These findings might suggest that platelet consumption in aortic prosthesis is related to thrombogenesis.
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42
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Uyemura M, Sunayama Y, Izumiya N, Yui T, Nakabayashi Y, Uyeno K. [Histological study of chronic desquamative gingivitis. Fine structures of epithelial layers (author's transl)]. Nihon Shishubyo Gakkai Kaishi 1981; 23:626-37. [PMID: 6951893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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43
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Uchida T, Matsuda S, Tanaka T, Sato T, Yui T, Kokubun R, Kumano M, Kariyone S. The effect of RES blockade on red blood cell survival. TOHOKU J EXP MED 1981; 135:247-53. [PMID: 7314112 DOI: 10.1620/tjem.135.247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The effect of RES blockade on the survival of heat-damaged and antibody coated red blood cells was evaluated in C3H mice. RES function of C3H mice was determined by the survival of 59Fe-labeled, heat-damaged red blood cells at 49 degrees C for 30 min. When animals were treated with an intravenous injection of non-labeled, heat-damaged red blood cells for the blockade of RES, red blood cell destruction was depressed in non-splenectomized and splenectomized mice. In the survival or organ distribution of 59Fe-labeled, antibody-coated red blood cells, no difference was noted between animals with and without blockade. These findings suggest that heat-damaged red blood cells were destructed predominantly in the splenic RES and antibody coated cells were not broken down only by the splenic RES.
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44
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Uchida T, Tanaka T, Umino M, Shichishima T, Kokubun R, Yui T, Kimura H, Muroi S, Matsuda S, Kariyone S. [Prevalence and causes of iron deficiency in Japanese women (author's transl)]. Nihon Naika Gakkai Zasshi 1981; 70:1401-7. [PMID: 7328359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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45
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Uchida T, Matsuda S, Tanaka T, Muroi S, Kimura H, Satoh T, Yui T, Satoh S, Fujino A, Mita M, Yamada Z, Kariyone S, Yoshida H, Kikuta T, Miura N, Itoh K, Ikeda K, Nemoto T, Hiraguri M, Sanbe M, Takezawa M, Nakamura Y, Satoh Y, Funayama S, Igarashi T, Ogiu A, Maseki N, Komatsu M. [Clinical evaluation of cefotiam in internal medicine, with special reference to infectious disease associated with hematological disorders (author's transl)]. Jpn J Antibiot 1981; 34:1148-57. [PMID: 6275142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Clinical evaluation of cefotiam (panspolin), a new cephem antibiotics, was performed in the infectious disease associated with hematological disorders and in the respiratory system. In hematological dis orders, 40% of good and 25% of fair results were obtained in clinical effects. In respiratory infections, however, 92% of good results were obtained. Opportunistic infection due to Gram-negative bacilli are often experienced in patients with leukemia. Since cefotiam has sufficient bacteriocidal effects in broad spectrum, it would be a good therapeutic agent against infectious diseases associated with hematological disorders.
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46
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Yui T, Uchida T, Matsuda S, Muroi S, Tanaka T, Saito M, Kariyone S. [Basic study of platelet labeling with 111In-oxine (author's transl)]. Kaku Igaku 1981; 18:463-72. [PMID: 6793757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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47
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Uchida T, Matsuda S, Yui T, Kimura H, Tanaka T, Kariyone S, Kida T. [Detection of inflammatory sites by In-111-oxine labeled neutrophils (author's transl)]. Kaku Igaku 1981; 18:441-7. [PMID: 6793756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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48
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Matsuki Y, Fukuhara K, Inoue Y, Yui T, Nambara T. Characterization of aminoindamines and aminoindoanilines formed by oxidative hair dyeing and their mutagenicity. J Pharmacobiodyn 1981; 4:269-274. [PMID: 7021797 DOI: 10.1248/bpb1978.4.269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
2-Amino-5-methoxy-2'(or 3')-methylindamine and 2-amino-5-methoxy-2'(or 3')-methylindoaniline were isolated from a coloring matter formed by oxidative condensation of 2,5-diaminotoluene with 2,4-diaminoanisole, and their structures were elucidated on the basis of nuclear magnetic resonance and mass spectral data. These two main components of the oxidation product formed at the early stage exhibited a positive result in the mutagenicity test on the thin-layer chromatography plate. The mutagenic activities of purified aminoindamines and aminoindoanilines against Salmonella typhimurium TA 98 were as strong as that of 2-acetamidofluorene. It was also demonstrated that 5-methoxy-2'(or 3')-methylindamine was formed in 10% yield under the conditions used for hair dyeing and the yield was dependent upon the molar ratio of 2,5-diaminotoluene to 2,4-diaminoanisole.
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49
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Uchida T, Kokubun R, Yui T, Kimura H, Muroi S, Tanaka T, Matsuda S, Yoshida H, Kariyone S. Red cell production and destruction in chronic myelocytic leukemia with reference to the neutrophil kinetics. Nihon Ketsueki Gakkai Zasshi 1981; 44:24-30. [PMID: 7315142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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50
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Uchida T, Umino M, Yui T, Kimura H, Tanaka T, Muroi S, Matsuda S, Kariyone S. Red cell production and destruction in primary myelofibrosis with reference to the neutrophil and platelet kinetics. Nihon Ketsueki Gakkai Zasshi 1981; 44:31-6. [PMID: 7315143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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