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Muramatsu T, Hamano H, Ogami K, Ohta K, Inoue T, Shimono M. Reduction of connexin 43 expression in aged human dental pulp. Int Endod J 2005; 37:814-8. [PMID: 15548271 DOI: 10.1111/j.1365-2591.2004.00880.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To investigate the expression of connexin 43 (CX43) mRNA in young and old human dental pulp tissues to determine the characteristics of CX43 expression. METHODOLOGY Samples were obtained from human dental pulp of healthy young (17-23 years) and aged (>50 years) subjects. CX43 expression was determined by RT-PCR and by quantitative real-time RT-PCR (QRT-PCR). The threshold cycle (Ct) value, which reflects the amount of PCR, was calculated and the difference between value in the young pulp and that in the aged pulp was statistically analysed. RESULTS RT-PCR analysis of human dental pulp tissue detected CX43 mRNA in all the samples. CX43 was abundantly expressed in young adult dental pulp, but expression of CX43 mRNA was dramatically decreased in aged human dental pulp. QRT-PCR analysis also showed the reduced expression of CX43 in aged pulp, and expression of CX43 in young pulp was significantly higher (about 10-fold, P < 0.01, Mann-Whitney U-test). CONCLUSION Reduction of CX43 expression may be associated with the loss of viability in human dental pulp, and is considered as one characteristic of aged pulp.
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Ohta K, Shigemoto K, Kubo S, Maruyama N, Abe Y, Ueda N, Ohta M. MuSK antibodies in AChR Ab-seropositive MG vs AChR Ab-seronegative MG. Neurology 2004; 62:2132-3. [PMID: 15184636 DOI: 10.1212/01.wnl.0000129274.12702.92] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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153
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Makita K, Ohta K, Mugitani A, Hagihara K, Ohta T, Yamane T, Hino M. Acute myelogenous leukemia in a donor after granulocyte colony-stimulating factor-primed peripheral blood stem cell harvest. Bone Marrow Transplant 2004; 33:661-5. [PMID: 14716337 DOI: 10.1038/sj.bmt.1704394] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This article describes the first case of acute myeloid leukemia (AML) in a healthy donor at 14 months after granulocyte colony-stimulating factor (G-CSF)-primed peripheral blood stem cell (PBSC) harvest. In September 2001, a healthy 61-year-old female was given G-CSF prior to PBSC harvest for her brother with multiple myeloma. In spite of successful engraftment, the recipient died from a disease relapse. In November 2002, the donor, admitted with high fever and leukocytosis with 98.5% blastoid cells, was diagnosed as having AML (M1). Her leukemia cells were positive for CD13, CD33, and G-CSF receptor without chromosomal abnormality and responded to G-CSF in vitro. During chemotherapy, she died of progressive pneumonia. If our case is truly the first, the incidence of leukemia in donors may not be higher than that of naturally occurring leukemia. However, efforts towards an international long-term study, or at least to report every case similar to ours, would be required to be conclusive.
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154
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Tsuruma T, Sahara H, Takenouchi M, Yagihashi A, Iwayama Y, Shima H, Furuhata T, Torigoe T, Hanashima S, Yamazaki T, Sugawara F, Mizushina Y, Ohta K, Sakaguchi K, Sato N, Hirata K. Synthetic sulfonolipids deduced from sulfonoquinovosyl diacylglycerols of sea urchin reduces hepatic ischemia-reperfusion injury in rats. Transplant Proc 2004; 36:1965-9. [PMID: 15518713 DOI: 10.1016/j.transproceed.2004.08.089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND In hepatic surgery and liver transplantation, ischemia-reperfusion (I/R) is an unavoidable process, and protection against hepatic I/R injury is a major unresolved problem. In this study, we investigated whether 3-O-(6-deoxy-6-sulfono-beta-D-glucopyranosyl)-1,2-di-O-acylglycerol bound to saturated C18 fatty acids (beta-SQAG9), which was derived from sea urchin intestines, could reduce this injury. This agent was recently reported to have immunosuppressive effects in allogeneic rat skin grafts. MATERIALS & METHODS Male Lewis rats were divided into two experimental groups. Group 1 rats were injected with SQAG9 (50 mg/kg) into the penile vein 15 minutes before the induction of ischemia and into the portal vein just reperfusion. The same amounts of normal saline were injected into rats in the control group (group 2). Each experimental groups included six rats. Seventy percent hepatic ischemia (20 minutes) was induced by occluding the blood vessels and bile duct with a vascular clamp. For examination of hepatic function, serum levels of aspartate aminotransferase, (AST) alanine transaminase (ALT), and lactic dehydrogenase (LDH) were measured. In addition, histological examination was also assessed. RESULTS Three hours after reperfusion, the mean plasma concentration of AST, ALT, LDH in group 1 was suppressed compared with group 2. Six hours after reperfusion, the hepatic damage in group 1 was mild in comparison with that in group 2. CONCLUSIONS Our data demonstrated that SQAG-9 reduced the warm hepatic I/R injury.
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Mohamed MAA, Babiker IS, Chen ZM, Ikeda K, Ohta K, Kato K. The role of climate variability in the inter-annual variation of terrestrial net primary production (NPP). THE SCIENCE OF THE TOTAL ENVIRONMENT 2004; 332:123-137. [PMID: 15336897 DOI: 10.1016/j.scitotenv.2004.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2003] [Accepted: 03/10/2004] [Indexed: 05/24/2023]
Abstract
Eleven years data set of global net primary production (NPP) and long-term climatic and land use data were used to explore the patterns of inter-annual variability of terrestrial NPP in relation to potential causal factors. Global anomalies in temperature, precipitation and cloud cover were found to significantly contribute in different ways and magnitudes to the variability of NPP of global ecosystems particularly forests and grasslands. El Niño/La Niña events represented an important factor affecting forests, woodlands and grasslands while deforestation was found to largely contribute to the NPP variability of tropical forests. Regionally, NPP variability is related to variation of precipitation in the tropics but is related to both variation and annual mean of temperature and cloud cover in the mid-northern latitudes. We hypothesized that the increase in variability of potential causal factor(s) will provoke more declines of NPP in the tropics but will yield more pulses or at least maintain a mean NPP in the mid-northern latitudes.
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Katsumata H, Kaneco S, Suzuki T, Ohta K. Effect of metal nitrates on the formation of PCDD/Fs during newspaper combustion. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2004; 73:479-486. [PMID: 15386168 DOI: 10.1007/s00128-004-0454-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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157
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158
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Mizuno K, Yachie A, Nagaoki S, Wada H, Okada K, Kawachi M, Toma T, Konno A, Ohta K, Kasahara Y, Koizumi S. Oligoclonal expansion of circulating and tissue-infiltrating CD8+ T cells with killer/effector phenotypes in juvenile dermatomyositis syndrome. Clin Exp Immunol 2004; 137:187-94. [PMID: 15196261 PMCID: PMC1809070 DOI: 10.1111/j.1365-2249.2004.02500.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2004] [Indexed: 11/27/2022] Open
Abstract
Although triggering by infectious agents and abnormal immune responses may play some role in the pathogenesis of juvenile dermatomyositis syndrome (JDMS), the precise mechanism of muscle destruction and vascular damage is largely unknown. In this study, we tried to elucidate the role of cytotoxic T cells in two patients with JDMS, who were diagnosed based on the characteristic symptoms, laboratory data, MRI findings and electromyographic patterns. Peripheral blood T cell phenotypes were determined by flow cytometry, using mAbs against specific T cell receptor (TCR) Vbetas. Complementarity-determining region3 (CDR3) size analysis was performed by gene scanning of CDR3 polymerase chain reaction (PCR) amplification products specific for each Vbeta. Subsequently, CDR3 nucleotide sequences were obtained after cloning of the predominant products. The distribution of lymphocytes infiltrating the muscle tissue was analysed by immunohistochemistry. In both patients examined, a unique combination of TCR Vbeta repertoires was increased within the CD8+ T cells. These subpopulations expressed a characteristic phenotype, indicating that they are memory/effector T cells with killer functions. At the same time, immunohistological and molecular biological examinations of the biopsied muscle samples revealed that identical CD8+ T cell clones with identical phenotypes/TCR Vbeta infiltrated within the inflammatory tissue, in particular around vessels. These findings indicate that oligoclonal expansion of CD8+ T cells plays a central role in the pathogenesis of muscle injury in the juvenile form of dermatomyositis syndrome and may provide a useful clinical parameter of disease activity and responsiveness to anti-inflammatory therapy.
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Kamada H, Sato K, Iwai M, Ohta K, Nagano I, Shoji M, Abe K. Changes of free cholesterol and neutral lipids after transient focal brain ischemia in rats. ACTA NEUROCHIRURGICA. SUPPLEMENT 2004; 86:177-80. [PMID: 14753430 DOI: 10.1007/978-3-7091-0651-8_38] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
We investigated temporal and spatial changes of free cholesterol (FC) and neutral lipids (NLs) after brain ischemia with filipin complex staining to detect mainly FC and Nile Red staining for NLs such as cholesteryl ester (CE) and triacylglyceride (TAG). Filipin stainining decreased during 1 to 7 d and lost at 21 d after transient middle cerebral artery (MCA) occlusion in the ischemic core, but did not change in the penumbra. Nile Red positive droplets reached the maximum at 7 d after transient MCA occlusion (MCAO) and gradually decreased in the core, while the peak time delayed in the penumbra. Most Nile Red positive droplets were double positive for ED1 in the core, and were localized within GFAP positive cells in the penumbra. The present study suggests that changes of FC and NLs are different temporally and spatially between the ischemic core and the penumbra in relation to degenerative and regenerative neural processes following brain ischemia. Macrophages and astrocytes are presumed to play important roles in lipid metabolism for neural reorganization of the ischemic brain injury in the ischemic core and the penumbra, respectively.
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Ohta K, Iwai M, Sato K, Omori N, Nagano I, Shoji M, Abe K. Dissociative increase of oligodendrocyte progenitor cells between young and aged rats after transient cerebral ischemia. ACTA NEUROCHIRURGICA. SUPPLEMENT 2004; 86:187-9. [PMID: 14753432 DOI: 10.1007/978-3-7091-0651-8_40] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Oligodendrocyte progenitor cells (OPCs) mature to oligodendrocyte and remyelinate axons. OPCs express neuron-glial antigen 2 (NG2) chondroitin sulfate proteoglycan. We stained NG2 to investigate the effect of aging on the OPCs after cerebral ischemia. NG2 positive cells were examined at 1, 3, 7 days after 90 min of transient middle cerebral artery occlusion in young and aged brains. The number of NG2 positive cells increased in the ischemic penumbra at 3 and 7 days after reperfusion. At 7 day, the number of NG2 positive cells was significantly greater in the young than the aged brains, and the processes of NG2 positive cells enlarged and were more highly branched in the young than the aged brains. These results suggest that the young brain shows a higher potential of proliferation and process branching of OPCs than the aged brain.
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Yamaguchi Y, Miyahara E, Ohshita A, Kawabuchi Y, Ohta K, Shimizu K, Minami K, Hihara J, Sawamura A, Toge T. Locoregional immunotherapy of malignant effusion from colorectal cancer using the streptococcal preparation OK-432 plus interleukin-2: induction of autologous tumor-reactive CD4+ Th1 killer lymphocytes. Br J Cancer 2004; 89:1876-84. [PMID: 14612896 PMCID: PMC2394446 DOI: 10.1038/sj.bjc.6601379] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
In total, 16 patients with cytologically proven malignant effusion from colorectal cancer were treated by locoregional administration of the streptococcal preparation OK-432 alone or OK-432 plus the T-cell growth factor interleukin (IL)-2, and the action mechanism of the treatment was studied. A positive clinical response, showing a cytologic disappearance of cancer cells and decrease of effusion, was observed in nine of 11 (82%) patients treated with OK-432 alone and in all five patients treated with OK-432 plus IL-2. Flow cytometric analysis revealed that OK-432 plus IL-2 locally induced acute inflammation-like responses, including serial cellular infiltrations of granulocyte migration within a matter of hours, and activation of macrophages and T lymphocyte involvement within the following days, and that a predominant expansion of CD3+CD4+ lymphocytes (CD: cluster of differentiation) was induced by in vitro stimulation with IL-2 of locoregional cells after the OK-432 administration (OK/IL-2AK cells). The OK/IL-2AK cells produced tumour necrosis factor-α and interferon-γ, but these cells did not produce IL-4 and IL-6. The OK/IL-2AK cells expressed potent killing activity against autologous tumour cells. This activity was abrogated by treatment of the lymphocytes with anti-CD3, -CD4, -TCRαβ antibody, and by the treatment of target cells with anti-human leukocyte antigen (HLA)-DR antibody. The OK/IL-2AK cells expressed Fas-L gene, and flow cytometric analysis demonstrated HLA-DR expression in approximately 75% of CEA+ or cytokeratin+ effusion cells. TCRVβ gene analysis of the OK/IL-2AK cells showed an oligoclonal usage of TCRβ20, which was also involved in the cytotoxic mechanism of the OK/IL-2AK cells. Single-strand conformational polymorphism analysis demonstrated the clonotypes for the TCRVβ20 gene, and the CDR3s of the gene were sequenced. The clonotypic PCR using the TCRVβ20-CDR3 sequences could detect the CDR3-identical TCRs in effusion lymphocytes from the other patients. Taken together, it is suggested that locoregional administration of OK-432 plus IL-2 is highly effective for the management of malignant effusion from colorectal cancer. OK-432 plus IL-2 induces autologous tumour-reactive CD4+ Th1 killer lymphocytes, which recognise tumour antigen(s) presented with HLA class II molecules on effusion tumour cells by means of preferential usage of TCRVβ20. The clonotypic PCR using the TCRVβ20-CDR3 sequences may be informative for treating malignant effusion from colorectal cancer using OK-432 plus IL-2.
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Suzuki A, Togawa M, Ohta K, Takikawa Y. Occurrence of White Top of Pea Caused by a New Strain of Pseudomonas syringae pv. pisi. PLANT DISEASE 2003; 87:1404-1410. [PMID: 30812379 DOI: 10.1094/pdis.2003.87.12.1404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A new bacterial disease has been observed on pea in Shizuoka prefecture, Japan, since 1981. The disease occurs in early autumn when pea plants grow vigorously. The disease is characterized by chlorosis and whitening of apical shoots, including leaflets, stipules, and young pods. Usually, these white top (WT) symptoms are associated with extensive water-soaked lesions on stems and on leaflets at the basal part of the diseased plants. Thirty-four bacterial isolates from WT plants were characterized and identified together with 16 strains of Pseudomonas syringae pv. pisi from common bacterial blight of pea. The bacteria were gram-negative rods, having one to six polar flagella. The results of LOPAT tests were + - - - +, showing that they belong to P. syringe. In stab inoculation on stems, the WT isolates produced WT symptoms with water-soaked spots 14 days after inoculation. The 16 P. syringae pv. pisi strains never induced WT symptoms and, on the contrary, caused the typical bacterial blight. WT isolates were not pathogenic on any other plants tested. Phenotypic properties differentiated WT isolates and P. syringae pv. pisi strains into two groups; one consists of WT isolates and P. syringae pv. pisi group A, the other is P. syringae pv. pisi group B. Two distinct fingerprint profiles were identified by repetitive sequence based-polymerase chain reaction. WT isolates and P. syringae pv. pisi group A belonged to the same fingerprint type in rep-PCR, whereas a distinct fingerprint was shown by strains of the P. syringae pv. pisi group B. We concluded that the WT isolates should be included in P. syringae pv. pisi as a distinct strain in symptom expression.
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Makino S, Furusho K, Ohta K, Mukoyama T. A survey on awareness and utilization of new asthma management guidelines in Japan. J Asthma 2003; 40:701-8. [PMID: 14580002 DOI: 10.1081/jas-120023492] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The present questionnaire survey, designed to interview Japanese internists and pediatricians who were specialists or nonspecialists in allergy or asthma, was conducted to determine the acceptance of "Asthma Prevention and Management Guidelines 1998" 1 year after release. The surveyor visited each physician and used the questionnaire form at the interview. Replies were obtained from a total of 5,963 physicians. The percentage of physicians who were aware of the guidelines was 96% among specialists and 68% among nonspecialists. Among the internists who were aware of the guidelines, the percentage of physicians giving a reply of "I refer to them often" or "I refer to them" in the actual diagnosis and management of asthma was 95% among specialists and 92% among nonspecialists. Therefore, reference was very high. Except for nonspecialists among pediatricians, not less than 60% of physicians expected that propagation of the present guidelines would allow a further decrease in asthma death and further improvement of patient's quality of life. The present survey revealed an increase in guideline awareness over the last several years, which was especially marked in nonspecialists. Furthermore, high reference and high expectancy also verified that physicians recognize the contents of the present guidelines as appropriate.
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164
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Miyake H, Yasukawa H, Kida Y, Ohta K, Shibata Y, Motogaito A, Hiramatsu K, Ohuchi Y, Tadatomo K, Hamamura Y, Fukui K. High performance Schottky UV detectors (265–100 nm) using n-Al0.5Ga0.5N on AlN epitaxial layer. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/pssa.200303487] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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165
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Terada Y, Hato F, Sakamoto C, Hasegawa T, Suzuki K, Nakamae H, Ohta K, Yamane T, Kitagawa S, Hino M. Thrombopoietin stimulates ex vivo expansion of mature neutrophils in the early stages of differentiation. Ann Hematol 2003; 82:671-6. [PMID: 14530871 DOI: 10.1007/s00277-003-0729-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2003] [Accepted: 05/28/2003] [Indexed: 11/27/2022]
Abstract
We examined the effects of thrombopoietin (TPO) in combination with stem cell factor (SCF), interleukin-3 (IL-3), and granulocyte colony-stimulating factor (G-CSF) on the proliferation and differentiation of human neutrophils. Purified CD34(+) hematopoietic progenitor cells were cultivated with SCF, IL-3, and G-CSF for 7 days (early phase), and thereafter nonadherent cells were further cultivated for 9 days with G-CSF alone (late phase). A large number of highly selected neutrophils (>95%) was obtained on day 16. We compared the expansion capacity in the presence or absence of TPO in each culture phase. The significantly larger number of neutrophils was obtained in the presence of TPO in the early culture phase. The number of expanded cells plateaued at day 16. Ultimately, a 550-fold increase in the number of neutrophils was achieved. These neutrophils gained the ability to respond effectively with chemotaxis and superoxide release, and were appropriately primed by G-CSF, granulocyte-macrophage colony-stimulating factor, tumor necrosis factor-alpha, and IL-1beta for enhanced release of O(2)(-). The responsiveness of these cells was identical to that of peripheral blood neutrophils. However, TPO did not accelerate the maturation of neutrophils supported by G-CSF in the late phase of culture. Furthermore, priming effects and triggering effects of TPO on the production of superoxide metabolites from peripheral blood neutrophils were not observed. These results suggest that TPO regulates the proliferation and differentiation of neutrophils in the early stages, but not the late stages, of differentiation.
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166
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Ishibashi H, Iida M, Ohta K, Yamazaki S. [Esophageal perforation after an anterior cervical fixation; report of a case]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2003; 56:897-9. [PMID: 13677931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
Abstract
We report 1 case of esophageal complications after anterior plate fixation of the cervical spine. A 62-year-old man underwent anterior cervical fusion in August 1996, and he did well after the operation. In January 1998, he was hospitalized for cardiac failure and was incubated twice for 10 days to cure. In March 1998, he suffered from dysphagia and continuous fever. Gastric fiberscopy showed the internal defect of esophagus and the plate to fix the cervical spine. He underwent immediate neck exploration via the cervical fusion incision, however he died of sepsis and respiratory failure. An esophageal perforation after an anterior cervical operation is an uncommon but well-recognized complication of the approach.
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167
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Takubo T, Kanashima H, Terada Y, Shibata H, Aoyama Y, Nakamae H, Yamamura R, Shima E, Makita K, Tanaka K, Ohta K, Yamane T, Hino M, Kamitani T, Tatsumi N, Ohshima K. E-cadherin expression in lymph nodes of three patients with non-Hodgkin's lymphoma. ACTA ACUST UNITED AC 2003; 32:67-72. [PMID: 12243557 DOI: 10.1163/156855902760262781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The E-cadherins are a family of cell-cell adhesion molecules. These molecules exhibit Ca2+ dependent cell adhesion and are expressed on epithelial cells. E-cadherin levels in serum are known to be significantly elevated in patients with epithelial carcinomas. We determined serum E-cadherin levels in 30 patients with non-Hodgkin's lymphoma (NHL) using an enzyme immunoassay and then investigated whether E-cadherin is expressed on lymphoma cells in lymph nodes of three cases selected to analyze from 15 cases of serum E-cadherin levels over mean + 2SD with monoclonal antibody immunohistochemistry. Results indicated that E-cadherin antigen is expressed on the lymphoma cells in these three patients with NHL, and that soluble E-cadherin might be released into blood from lymphoma cells. Expression of E-cadherin may contribute to the morphological appearance of some malignant lymphoma, although no conclusion can be drawn based on such small number of patients analyzed.
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168
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Takubo T, Kumura T, Nakamae H, Aoyama Y, Koh KR, Ohta K, Yamane T, Hino M, Kanashima H, Kamitani T, Ohta T, Kuwajima S, Tatsumi N. Urinary trypsin inhibitor levels in the urine of patients with haematological malignancies. HAEMATOLOGIA 2003; 31:267-72. [PMID: 11855791 DOI: 10.1163/15685590152763836] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The urinary trypsin inhibitor (UTI) levels in the urine of patients with various haematological malignancies were determined, using automated latex agglutination immunoturbidimetry. The mean UTI levels in urine in acute non-lymphocytic leukaemia, myelodysplastic syndrome, non-Hodgkin's lymphoma, and multiple myeloma groups were significantly elevated, compared with the normal control group. It was found that the UTI level in urine changed from an elevated value to a normal value with haematological improvement by chemotherapy in a patient with myelodysplastic syndrome included in a previous study. These results suggest tha
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169
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Takubo T, Kumura T, Kanashima H, Nakao T, Nakamae H, Aoyama Y, Yamamura R, Ohta T, Koh KR, Ohta K, Yamane T, Hino M, Kamitani T, Tatsumi N. Analysis of IL-18 bioactivity and IL-18 mRNA in three patients with adult T-cell leukaemia, acute mixed lineage leukaemia, and acute lymphocytic leukaemia accompanied with high serum IL-18 levels. HAEMATOLOGIA 2003; 31:231-5. [PMID: 11855785 DOI: 10.1163/15685590152763773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Interleukin-18 (IL-18) bioactivity in sera and IL-18 mRNA expression in leukaemia cells of three patients with adult T-cell leukaemia (ATL), acute mixed lineage leukaemia (AMLL) and acute lymphocytic leukaemia (ALL) accompanied with high serum IL-18 levels have been analysed. There was little serum IL-18 bioactivity in the three patients with ATL, AMLL and ALL, while IL-18 mRNA expression was detected in leukaemia cells of all three patients.
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170
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Gabazza EC, Nakano M, Ohta K, Hayashi T, Kamada H, Taguchi O, Adachi Y, Suzuki K. C-reactive protein induces the expression of tissue factor and interleukin-8 in the lung. J Thromb Haemost 2003. [DOI: 10.1111/j.1538-7836.2003.tb03923.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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171
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Ohta K, Yamamoto Y, Arai J, Komurasaki Y, Yoshimura N. Solitary choroidal tuberculoma in a patient with chest wall tuberculosis. Br J Ophthalmol 2003; 87:795. [PMID: 12770992 PMCID: PMC1771685 DOI: 10.1136/bjo.87.6.795] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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172
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Aoyama Y, Yamamura R, Shima E, Nakamae H, Makita K, Kho G, Ohta K, Yamane T, Takubo T, Hino M. Successful treatment with reduced-intensity stem cell transplantation in a case of relapsed refractory central nervous system lymphoma. Ann Hematol 2003; 82:371-3. [PMID: 12719887 DOI: 10.1007/s00277-003-0651-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2002] [Accepted: 03/28/2003] [Indexed: 10/26/2022]
Abstract
A 33-year-old male with refractory relapsed central nervous system lymphoma underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT) from an HLA-identical sibling after reduced-intensity conditioning chemotherapy. The preparative regimen for allo-HSCT consisted of fludarabine and busulfan. Cyclosporine (CsA) and short-term methotrexate were used as prophylaxis for acute graft-versus-host disease (GVHD). Although CsA was quickly reduced to induce a graft-versus-lymphoma (GVL) effect, no symptoms of GVHD and GVL effect were evident. Donor lymphocyte infusion (DLI) was performed on day +40 following transplantation. The patient developed acute GVHD (grade III) after DLI, and lymphoma regression was observed after the occurrence of GVHD. Four months after transplantation, complete remission was achieved with extensive chronic GVHD, and the patient continues to be disease free at 15 months after transplantation.
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Akahori M, Nakamae H, Hino M, Yamane T, Hayashi T, Ohta K, Tatsumi N, Kitagawa S, Tsumura K. Electrocardiogram is very useful for predicting acute heart failure following myeloablative chemotherapy with hematopoietic stem cell transplantation rescue. Bone Marrow Transplant 2003; 31:585-90. [PMID: 12692626 DOI: 10.1038/sj.bmt.1703890] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A prospective study was conducted in 71 evaluable patients who received myeloablative hematopoietic stem cell transplantation (HSCT) at our facility from 1995 to 2002, to find a sensitive marker for post-transplant heart failure, including echocardiographic systolic and diastolic markers and QTc interval. QTc was found to be an independent and significant risk factor for acute heart failure (AHF) on multivariate logistic regression analysis (OR 1.5, P=0.01, 95% confidence interval (CI) 1.1-2.0), while no significant differences between patients with AHF and those without AHF were found in age, sex, treatment history, type of conditioning regimen, and echocardiographic systolic and diastolic markers. On further analysis, post-transplant risk of AHF appeared to be increased as QTc was prolonged. The post-transplant risk of AHF in the group with longest QTc on multivariate logistic regression analysis was found to be 9.8 times that in the group with shortest QTc (P=0.04, 95% CI 1.0-100). These results suggest that echocardiographic markers are less valuable predictors of post-transplant AHF, but that prolongation of the QTc, an ECG marker, before HSCT is strongly associated with onset of AHF after HSCT.
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174
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Yamashita N, Tashimo H, Nakajima M, Ishida H, Kuramochi M, Kaneko F, Kawashima R, Horiuchi T, Ohta K. Attenuation of allergic inflammation by neutralization of IGF-I in murine asthmatic models. J Allergy Clin Immunol 2003. [DOI: 10.1016/s0091-6749(03)81251-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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175
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Komiya A, Nagase H, Yamada H, Sekiya T, Yamaguchi M, Sano Y, Hanai N, Furuya A, Ohta K, Yoshie O, Yamamoto K, Hirai K. Concerted expression of eotaxin-1, eotaxin-2, and eotaxin-3 in human bronchial epithelial cells. J Allergy Clin Immunol 2003. [DOI: 10.1016/s0091-6749(03)80481-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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176
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Begum A, Katsumata H, Kaneco S, Suzuki T, Ohta K. Biodegradation of phthalic acid esters by bakery yeast Saccharomyces cerevisiae. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2003; 70:255-261. [PMID: 12545356 DOI: 10.1007/s00128-002-0185-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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177
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Ohta K, Ohashi M, Takeuchi T. Separation of common monovalent and divalent cations by ion chromatography on calcined silica gel cation-exchange stationary phases, with tyramine-oxalic acid-containing crown ether mobile phases and indirect photometric detection. Chromatographia 2003. [DOI: 10.1007/bf02491709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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178
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Hino M, Yamane T, Park K, Takubo T, Ohta K, Kitagawa S, Higuchi K, Arakawa T. Platelet recovery after eradication of Helicobacter pylori in patients with idiopathic thrombocytopenic purpura. Ann Hematol 2003; 82:30-2. [PMID: 12574961 DOI: 10.1007/s00277-002-0579-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2002] [Accepted: 10/23/2002] [Indexed: 12/24/2022]
Abstract
The association between Helicobacter pylori ( H. pylori) infection and idiopathic thrombocytopenic purpura (ITP) has been reported by several groups. We investigated the prevalence of H. pylori infection and the effectiveness of its eradication in Japanese patients with ITP. H. pylori infection was found in 21 of 30 patients (70.0%) by (13)C urea breath test and presence of serum antibodies to H. pylori. H. pylori was eradicated in 18 of the 21 infected patients (85.7%) by administration of a proton pump inhibitor and two kinds of antibiotics. In only one patient was medication discontinued due to skin rash on the 4th day of treatment. Platelet recovery was obtained in ten patients (55.6%). In two patients with treatment failure, platelet recovery was obtained after successful re-eradication. In three patients without H. pylori infection, platelet counts did not significantly increase with the same treatment. On the other hand, eradication therapy did not affect platelet counts in patients with gastric ulcer. In conclusion, H. pylori eradication can be used for initial treatment with tolerable adverse effects in some ITP patients.
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179
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Hirasawa Y, Suzuki M, Itami N, Ohira S, Mizuno T, Mera K, Haga Y, Kawai H, Mashimo K, Obara I, Kurosawa N, Nakamoto Y, Numazawa K, Furuhashi M, Maruyama Y, Miki R, Koike S, Seno H, Kawahara H, Kobayashi H, Ono T, Okuno S, Kim M, Miyazaki R, Saika Y, Motomiya Y, Taniai K, Usui K, Shigemoto K, Mizuguchi T, Kawashima S, Yuasa K, Ohta K, Sato T, Fukunari K, Kimura Y, Takahashi H, Yuu K. Maintenance hamatocrit levels and mortality in hemodialysis patients with renal anemia receiving recombinant human erythropoietin(rHuEPO) treatment(rHuEPO survey). ACTA ACUST UNITED AC 2003. [DOI: 10.4009/jsdt.36.1265] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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180
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Sato K, Iwai M, Zhang WR, Kamada H, Ohta K, Omori N, Nagano I, Shoji M, Abe K. Highly polysialylated neural cell adhesion molecule (PSA-NCAM) positive cells are increased and change localization in rat hippocampus by exposure to repeated kindled seizures. ACTA NEUROCHIRURGICA. SUPPLEMENT 2003; 86:575-9. [PMID: 14753509 DOI: 10.1007/978-3-7091-0651-8_117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
The highly polysialylated neural cell adhesion molecule (PSA-NCAM) is involved in migration of neural stem cells as well as in neural plasticity. Immunoreactive PSA-NCAM expression was examined in rats with repeated exposure to amygdaloid kindled generalized seizures (GS). The number of PSA-NCAM positive cells in the bilateral dentate gyrus (DG) increased significantly from GS. Although the total number of positive cells was not significantly different between animals with 3 times GS (3 GS) and 30 times GS (30 GS), in the latter group a greater number of positive cells was observed in the outer granule cell layer (GCL) and a marked extension of immunopositive dendrites to the molecular layer. These observations indicate that increased migration of newly generated cells as well as plastic changes of preexisting neural cells occur in response to recurrent GS. This may contribute to an abnormal reconstruction of the synaptic network in the hippocampus and, thus, epileptogenicity from kindling.
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181
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Takubo T, Kanashima H, Terada Y, Aoyama Y, Nakamae H, Yamamura R, Shima E, Makita K, Tanaka K, Ohta K, Yamane T, Hino M, Kamitani T, Tatsumi N. Clinical significance of serum E-cadherin levels in patients with haematological malignancies. HAEMATOLOGIA 2002; 31:319-25. [PMID: 12038515 DOI: 10.1163/15685590160141341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
E-cadherin is a transmembrane glycoprotein that mediates Ca2+-dependent intracellular adhesion in normal epithelial cells. E-cadherin levels in serum are known to be significantly elevated in patients with epithelial carcinomas. However, the role of E-cadherin in haematopoietic cells is less clear. In this study, serum E-cadherin levels were therefore determined in patients with acute or chronic leukaemia, malignant lymphoma or myelodysplastic syndromes. Significant elevation of serum E-cadherin levels was detected in patients with haematological malignancies, and between types of acute leukaemias or subtypes of myelodysplastic syndromes, stages of malignant lymphoma, and phases of chronic leukaemia, respectively, compared with those in healthy adult volunteers. These findings suggest that E-cadherin might be expressed in malignant haematopoietic cells and might be useful as a diagnostic indicator in haematological malignancies.
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182
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Shimizu M, Ohta K, Matsumoto Y, Fukuoka M, Ohno Y, Ozawa S. Sulfation of bisphenol A abolished its estrogenicity based on proliferation and gene expression in human breast cancer MCF-7 cells. Toxicol In Vitro 2002; 16:549-56. [PMID: 12206822 DOI: 10.1016/s0887-2333(02)00055-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Bisphenol A, an endocrine-disrupting chemical, is widely used in many consumer products. We previously showed the sulfoconjugation of bisphenol A catalyzed by a human thermostable phenol sulfotransferase, ST1A3. The estrogenic potency of bisphenol A sulfate was compared with that of bisphenol A by an E-screen assay using human breast cancer MCF-7 cells. An increase in the expression level of an estrogen-responsive pS2 gene was also examined using MCF-7 cells after exposure to bisphenol A and its sulfate for their estrogenicity. Bisphenol A sulfate did not exhibit estrogenic effects at 0.1 microM (E-screen assay) and 1 mM (pS2 gene expression) compared with bisphenol A, which exhibited the effects at 3 nM (E-screen assay) and 1 microM (pS2 gene expression), respectively. We have therefore evaluated major roles of cytosolic phenol sulfotransferase in the human liver. Bisphenol A sulfation in human liver cytosols was inhibited by more than 90% by p-nitrophenol and quercetin, a typical substrate and specific inhibitor of phenol sulfotransferase, respectively. These results indicated that the estrogenicity of bisphenol A was abolished through its sulfation catalyzed by a human hepatic thermostable phenol sulfotransferase.
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183
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Takubo T, Fujino H, Hino M, Yamane T, Ohta K, Koh KR, Kumura T, Hashimoto S, Nakao T, Nakamae H, Aoyama Y, Nishiki S, Kinoshita Y, Kamitani T, Tatsumi N, Hojo S, Fujita J. Expression of KL-6 antigen on leukemia cells of a patient with chronic myelocytic leukemia in blastic phase. HAEMATOLOGIA 2002; 31:173-6. [PMID: 11583030 DOI: 10.1163/15685590152492990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
MESH Headings
- Antigens/blood
- Antigens/genetics
- Antigens, Neoplasm
- Biomarkers, Tumor/blood
- Blast Crisis/diagnosis
- Blast Crisis/immunology
- Blast Crisis/pathology
- Bone Marrow Cells/immunology
- Bone Marrow Cells/metabolism
- Bone Marrow Cells/pathology
- Glycoproteins/blood
- Glycoproteins/genetics
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/immunology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Monocytes/immunology
- Monocytes/metabolism
- Monocytes/pathology
- Mucin-1
- Mucins
- RNA, Messenger/blood
- RNA, Neoplasm/blood
- Reverse Transcriptase Polymerase Chain Reaction
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184
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Takubo T, Kumura T, Ohta K, Yamane T, Hino M, Kamitani T, Tatsumi N. Elevation of serum procalcitonin level in a patient with chronic myelocytic leukemia. HAEMATOLOGIA 2002; 31:177-9. [PMID: 11583031 DOI: 10.1163/15685590152493007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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185
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Kaneco S, Iiba K, Yabuuchi M, Nishio N, Ohnishi H, Katsumata H, Suzuki T, Ohta K. High Efficiency Electrochemical CO2-to-Methane Conversion Method Using Methanol with Lithium Supporting Electrolytes. Ind Eng Chem Res 2002. [DOI: 10.1021/ie0200454] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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186
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Endo H, Yoshida H, Ohmi N, Ohta K, Higuchi S, Suga T. Localization of [14C]clarithromycin in rat gastric tissue when administered with lansoprazole and amoxicillin. J Antimicrob Chemother 2002; 50:285-8. [PMID: 12161414 DOI: 10.1093/jac/dkf097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
After oral and intravenous administration of [14C]clarithromycin to rats, c. 60-70% of the radioactivity in the gastric tissue was found to be distributed in the mucosal layer. Co-administration of lansoprazole and amoxicillin had no apparent effect on this distribution pattern of [14C]clarithromycin. The amount of unchanged [14C]clarithromycin in gastric contents increased with co-administration of lansoprazole and amoxicillin. Microautoradiograms of the gastric mucosa showed that [14C]clarithromycin was highly distributed in the mucous layer and in surface epithelial cells following oral administration. Homogeneous distribution of radioactivity was evident in the fundic gland. With iv administration, [14C]clarithromycin seemed to be secreted by both secreting cells in the gland base and surface epithelial cells.
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187
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Ohta K, Monma H, Tanaka J, Eda H. Interaction between hydroxyapatite and proteins by liquid chromatography using simulated body fluids as eluents. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2002; 13:633-637. [PMID: 15348571 DOI: 10.1023/a:1015721321912] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Hydroxyapatite (HAp) column chromatography for proteins using simulated body fluids (SBFs) as eluents was investigated in order to mimic the flow environment of human body fluid on the HAp surface in vivo. Acidic plasma proteins such as albumin, gamma-globulin, and fibrinogen having carboxyl groups with a negative charge were suggested to adsorb at positively charged sites (Ca sites) on the HAp surface. These acidic plasma proteins were not even eluted at higher inorganic ion molarities of human body fluid. Whereas basic proteins such as papin, cytochrome c, and lysozyme were easily eluted at lower inorganic ion molarities of human body fluid due to existing Na(+), Ca(2 +), Mg(2 +) and (CH(2)OH)(3)CNH(4)(+) ions in the eluents. The elution behavior of proteins using SBF in the presence or absence of glucose did not change. From these considerations, bone matrix proteins as acidic and neutral proteins would be considered an advantageous condition in order to adsorb on HAp in vivo.
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188
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Ohta K, Closs GL, Morokuma K, Green NJ. Stereoelectronic effects in intramolecular long-distance electron transfer in radical anions as predicted by ab-initio MO calculations. J Am Chem Soc 2002. [DOI: 10.1021/ja00266a045] [Citation(s) in RCA: 121] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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189
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Ohta K, Smith BW, Winefordner JD. High-temperature gas chromatography with an atomic absorption spectrometric detector. Anal Chem 2002. [DOI: 10.1021/ac00239a041] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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190
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Shimizu K, Yamaguchi Y, Ohta K, Miyahara E, Toge T. Analysis of T cell receptors reactive with squamous cell carcinoma antigen SART-1 presented by the HLA-A24 molecule. Oncol Rep 2002. [DOI: 10.3892/or.9.3.599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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191
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Shiotani M, Ohta K, Nagata Y, Sohma J. Novel cycloaddition of dimethylacetylene to the dimethylacetylene radical cation: direct observation by ESR. J Am Chem Soc 2002. [DOI: 10.1021/ja00294a067] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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192
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Nakatsuji H, Ohta K, Yonezawa T. Cluster expansion of the wave function. Spin and electron correlations in doublet radicals studied by the symmetry adapted cluster and symmetry adapted cluster-configuration interaction theories. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100239a022] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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193
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Newton MD, Ohta K, Zhong E. Analysis of superexchange coupling in metallocene-metallocenium redox pairs. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100159a039] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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194
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Ishibashi H, Ohta K, Ochiai T, Kaisan T, Ishikawa T, Kubota T, Sato E, Iida M, Yamazaki S. [Delayed hydrothorax induced by a pericutaneous central venous catheter; report of a case]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2002; 55:213-5. [PMID: 11889809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
We report herein a case of 53-year-old woman who suffered a hydrothorax induced by a central venous catheter which had been placed to facilitate total parenteral nutrition. The central venous catheter was inserted into the superior vena cava through the right subclavian vein. Chest X-ray film after insertion revealed proper position of the tip. She suddenly developed dyspnea and tachycardia due to right-sided hydrothorax 21 days after the insertion of the catheter. Chest X-ray showed massive pleural effusion in the right thorax, and the catheter tip inadvertently turned upward. The continuous mechanical force of the catheter tip against the SVC wall was considered to be the cause of this life-threatening delayed hydrothorax.
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195
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Nishiki S, Hino M, Kumura T, Hashimoto S, Ohta K, Yamane T, Takubo T, Tatsumi N, Kitagawa S, Kamitani T, Watanabe Y, Shimada E, Juji T, Iida S. Effectiveness of washed platelet concentrate and red cell transfusions for a patient with anhaptoglobinemia with antihaptoglobin antibody. Transfus Med 2002; 12:71-3. [PMID: 11967140 DOI: 10.1046/j.1365-3148.2002.00350.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A 71-year-old Japanese male with myelodysplastic syndrome progressing to overt leukaemia and hepatocellular carcinoma developed dyspnea and urticaria immediately after infusion of platelet concentrate (PC). He exhibited an identical reaction following blood transfusion. Serum haptoglobin was undetectable. The patient was determined to be homozygous for Hp(del) by polymerase chain reaction (PCR). Antibody to haptoglobin was detected by enzyme-linked immunosorbent assay (ELISA) and Western blot analysis. No antibodies against human leucocyte antigen (HLA) or platelet-specific antigens were detected. Washed PC and washed red blood cells were effective in preventing the transfusion-related anaphylactoid reactions.
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196
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Ohta K, Inokuchi T, Gen E, Chang J. Ultrastructural study of anterograde transport of glial cell line-derived neurotrophic factor from dorsal root ganglion neurons of rats towards the nerve terminal. Cells Tissues Organs 2002; 169:410-21. [PMID: 11490121 DOI: 10.1159/000047909] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The glial cell line-derived neurotrophic factor (GDNF) is a potent neurotrophic substance in the central and peripheral nervous systems. The present immunohistochemical study clarified the ultrastructural localization of GDNF-immunoreactive substance (GDNF-IR) accumulated at transfected sciatic nerve stumps and also at normal spinal dorsal horn, and has demonstrated that GDNF-IR products appear to be located in dense-cored vesicles within the axons. Furthermore, to determine the source of proximally accumulated GDNF in the transected sciatic nerve, we attempted a transection and a double ligation maneuver involving the sciatic nerve. In the early period after the ligation (20 h), GDNF-IR fibers were observed in the proximal and distal segment of the ligations, but no immunoreactivities were detected in the middle segment. On the other hand, at a late period (8 days) after the transection, GDNF-IR fibers had almost disappeared, but weak GDNF-IR was observed in Schwann cells in the proximal and distal stumps of transected nerve. These findings suggest that most of GDNF-IR was transported from the proximal or distal side in the early period, but was locally synthesized by Schwann cells around the ligations in the late period. Spinal rhizotomy caused prominent accumulation of GDNF-IR products at the cut end of the ganglion side of the dorsal root, but not at the ventral root. These results suggested that dorsal root ganglionic (DRG) sensory neurons are one of the origins of GDNF. The fact that small- to medium-sized DRG neurons show enhanced GDNR-IR after the colchicine treatment may support the above suggestion. In conclusion, the present results strongly suggest that a subgroup of DRG sensory neurons synthesized GDNF-containing dense-cored vesicles in the neuronal somata and anterogradely transports the vesicles to peripheral or central axon terminals.
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197
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Seto Y, Shimoyama S, Kitayama J, Mafune K, Kaminishi M, Aikou T, Arai K, Ohta K, Nashimoto A, Honda I, Yamagishi H, Yamamura Y. Lymph node metastasis and preoperative diagnosis of depth of invasion in early gastric cancer. Gastric Cancer 2002; 4:34-8. [PMID: 11706625 DOI: 10.1007/s101200100014] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND No reports have, to date, focused on the relationship between preoperative determination of the depth of invasion and lymph node metastasis. The present study, under the leadership of the Japanese Gastric Cancer Association, was designed to form a basis for decision making in limited treatment for early gastric cancer (EGC). METHODS From eight major hospitals in Japan, 2672 gastric cancers whose preoperative depth of invasion was mucosal(M-cancer), and 6209 EGCs, consisting of 3584 mucosal(m-) and 2625 submucosal(sm-) cancers, were collected by questionnaire. All registered patients underwent gastrectomy with D1 or more extensive lymphadenectomy between 1985 and 1998. RESULTS The accuracy of preoperative diagnosis of depth of invasion of M-cancers was 80.2% (2144/2672). However, of the total of 2432 M-cancers in which no nodal involvement was observed intraoperatively (N0), histological examination of the resected specimens confirmed that lymph node metastasis was absent in 2353 (96.8%). The frequencies of lymph node metastasis in early gastric, m-, and sm-cancers were 8.9%, 2.5%, and 17.6%, respectively. Node involvement was associated with a higher frequency of undifferentiated than differentiated histology, as well as with greater tumor size. The incidences of lymph node metastasis in m-cancers with a diameter of less than 4 cm, and in sm-cancers with a diameter below 1 cm were 1.3% (37/2837) and 4.9% (4/82), respectively. These metastases rarely extended beyond the first tier. CONCLUSION N0 and M-cancers, m-cancers less than 4 cm in diameter, and sm-cancers no larger than 1 cm in diameter may be appropriate indications for limited surgery.
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198
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Nagase H, Miyamasu M, Yamaguchi M, Fujisawa T, Kawasaki H, Ohta K, Yamamoto K, Morita Y, Hirai K. Regulation of chemokine receptor expression in eosinophils. Int Arch Allergy Immunol 2002; 125 Suppl 1:29-32. [PMID: 11408769 DOI: 10.1159/000053849] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Signals via chemokine receptors play an important role in the accumulation of eosinophils at allergic inflammatory sites. Eosinophils constitutively express CC chemokine receptor 3 (CCR3) and, to a lesser extent, CCR1. CCR3 is mainly responsible for migration of resting eosinophils, and its specific ligand, eotaxin, represents the most potent chemoattractant for eosinophils. Some reports also suggest the expression of CXC chemokine receptor 1 (CXCR1) and/or CXCR2 in eosinophils. In addition, we recently reported the functional expression of CXCR4. The ligand of CXCR4, stromal cell-derived factor-1 (SDF-1), was able to induce a strong migratory response comparable to that by eotaxin. In contrast to the CCR3/eotaxin system which is mainly regulated at the level of ligand production, the CXCR4/SDF-1 system is regulated at the level of receptor expression. CXCR4 expression was completely attenuated by IL-4 and IL-5 and upregulated by IFN-gamma and dexamethasone, while CCR3 expression was only marginally affected. The balance between the biological effects of these chemokine systems may affect the distribution and migration of eosinophils.
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199
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Takubo T, Shibata H, Terada Y, Aoyama Y, Nakamae H, Yamamura R, Shima E, Makita K, Tanaka K, Ohta K, Yamane T, Hino M, Hashimoto S, Kamitani T, Tatsumi N. Serum sialyl Lewis(x) levels in patients with various haematologic malignancies. HAEMATOLOGIA 2002; 32:147-9. [PMID: 12412734 DOI: 10.1163/156855902320387989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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200
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Shima E, Hino M, Yamane T, Aoyama Y, Nakamae H, Yamamura R, Makita K, Sugano Y, Yasuda S, Takubo T, Ohta K, Tatsumi N. Acute rhabdomyolysis following administration of high-dose cyclophosphamide: case report. Ann Hematol 2002; 81:55-6. [PMID: 11807638 DOI: 10.1007/s00277-001-0399-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2001] [Accepted: 10/11/2001] [Indexed: 11/28/2022]
Abstract
Rhabdomyolysis is an unusual complication of hematopoietic stem cell transplantation (HSCT). Cyclophosphamide has been one of the key drugs in the most common preparative regimen for HSCT. We present here a rare case of acute rhabdomyolysis following administration of high-dose cyclophosphamide. A 47-year-old woman with adult T-cell leukemia in remission was treated with high-dose cyclophosphamide as a preparative regimen for allogeneic bone marrow transplantation. Nineteen hours later, general convulsions and acidosis suddenly occurred. Levels of serum creatine kinase (skeletal muscle type), myoglobin, and aldolase were markedly elevated to 32870 IU/l, 640 ng/ml, and 240.3 IU/l, respectively. Rhabdomyolysis caused by high-dose cyclophosphamide was diagnosed, and the preparative chemotherapy was discontinued. Subsequently, her muscular signs and symptoms improved, and the results of laboratory examinations returned to normal after 2 weeks. She had previously been treated with conventional doses of cyclophosphamide, doxorubicin, vincristine, and prednisolone without evidence of rhabdomyolysis. Acute rhabdomyolysis may be an adverse effect specific to high-dose cyclophosphamide therapy.
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