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Baba T, Fujimori Y, Kurihara K, Yamanaka Y, Hashimoto S, Terasawa Y, Hata H, Yokota D, Wakabayashi T, Imai T. A bolus of saline injection leads to increase in coronary flow based on the viscosity reduction effect: the mechanism of saline induced Pd/Pa ratio. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In conjunction with fractional flow reserve (FFR), our previous study has shown the accuracy and utility of saline induced Pd/Pa ratio (SPR) for the assessment of myocardial ischemia. However, the potential mechanism how saline injection leads to increase in coronary flow remains speculative.
Purpose
This study aimed to clarify the underlying mechanism of SPR by using swine models.
Methods
The study was conducted in four swine models, and bolus of 25°C saline, 40°C saline, and 25°C dextran was injected at rates of 40mL/5sec through a catheter inserted into the superior mesenteric artery. Its peripheral arterioles were observed and recorded by a digital microscope, and transit time of each fluid and a luminal diameter of arterioles before and after injection were measured.
Results
The result from arterioles diameters of pre- and post-injection (0.049±0.016mm vs. 0.050±0.016mm; P=0.636) indicated that luminal diameters remained unchanged regardless of fluid administration. The transit time of 25°C saline was significantly shorter than 25°C dextran (3.19±0.68sec vs. 6.15±1.19sec; P<0.0001). Although the result showed no significance, the transit time of 40°C saline with lower viscosity was shorten compared to 25°C saline (3.1±0.43sec vs. 3.65±0.46sec; P=0.088).
Conclusions
Compared to 25°C dextran (viscosity of 4.991mPa·s) having the same viscosity as 37°C whole blood, 25°C saline (viscosity of 1.012mPa·s) caused increasing to double the intravascular flow volume without dilating arterioles. The results strongly suggested that the potential mechanism of SPR was viscosity reduction effect. Combined with FFR which is based on vasodilation-mediated hyperemia, these findings may contribute to clarifying the pathophysiology and especially the microcirculation in coronary artery diseases.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Baba
- Rikuzankai Iida Hospital, Iida, Japan
| | | | | | | | | | | | - H Hata
- Suwa Central Hospital, Chino, Japan
| | - D Yokota
- Rikuzankai Iida Hospital, Iida, Japan
| | | | - T Imai
- Suwa Central Hospital, Chino, Japan
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2
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Yamanaka Y, Fujimori Y, Hashimoto S, Kurihara K, Wakabayashi T, Imai T, Baba T, Takeuchi W, Yokota D. The developing mechanism of atherosclerotic lesion in coronary side branch on the ventricular free wall differs by the location of lesion. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The effective treating method of coronary side branch lesions such as ostial stenosis or thin arteries has not been established. On the other hand, tortuous side branch rarely has stenotic lesions.
Purpose
We focused on coronary side branches on the ventricular free wall, and examined coronary risk factors and bending and stretching motion of branch which can contribute to the development of atherosclerotic lesion.
Methods
In elective and first-time coronary angiograms, we included side branches on the ventricular free wall (>2mm in diameter) and excluded previously treated ones. Study A; we divided arteries into proximal, middle, and distal segment, and examined the presence of tortuosity and stenotic lesions exceeding 50% diameter stenosis (DS) for each segment. A score of 1 was assigned to tortuous segment, and 0 to non-tortuous one. Study B; we included stenotic lesion (>50% DS) in side branch ostium and excluded those extended across main coronary arteries. Relation between lesions and patients' characteristics was examined.
Results
Study A; in 1,828 side branches from 472 patients, middle and distal segments had significantly higher tortuosity score than proximal (0.68, 0.78 vs. 0.34; p<0.0001). On the contrary, proximal segments had more stenotic lesions except ostial stenosis (230 vs. 69, 5; p<0.0001). Study B; in 1,740 side branches from 465 patients, 122 ostial stenotic lesions were found (7.0%). Multivariate logistic regression analysis revealed diabetes mellitus and age as independent contributors to development of ostial stenosis (Table).
Conclusions
Side branch stenosis developed less frequently in middle and distal segments, where stronger ventricular wall motion reinforces bending and stretching motion and tortuosity of arteries. This fact indicates that those characteristics may prevent developing atherosclerosis through increasing shear stress. On the other hand, diabetes mellitus strongly contributes to the development of ostial stenosis. Thus, the developing mechanism of atherosclerotic lesion in side branch on the ventricular free wall differs by the location of lesion.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | | | | | | | | | - T Imai
- Suwa Central Hospital, Chino, Japan
| | - T Baba
- Iida Hospital, Cardiology, Iida, Japan
| | | | - D Yokota
- Iida Hospital, Cardiology, Iida, Japan
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3
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Hashimoto S, Fujimori Y, Baba T, Kurihara K, Ebisuda K, Terasawa Y, Wakabayashi T, Yamazaki K, Imai T. P3658Saline induced Pd/Pa ratio can predict functional significance of coronary stenosis assessed using fractional flow reserve. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Y Fujimori
- Suwa Central Hospital, Chino, Nagano, Japan
| | - T Baba
- Suwa Central Hospital, Chino, Nagano, Japan
| | - K Kurihara
- Suwa Central Hospital, Chino, Nagano, Japan
| | - K Ebisuda
- Suwa Central Hospital, Chino, Nagano, Japan
| | - Y Terasawa
- Suwa Central Hospital, Chino, Nagano, Japan
| | | | - K Yamazaki
- Showa Inan General Hospital, Komagane, Nagano, Japan
| | - T Imai
- Suwa Central Hospital, Chino, Nagano, Japan
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4
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Harada H, Fujimori Y, Gomi R, Ahsan MN, Fujii S, Sakai A, Matsuda T. Pathotyping of Escherichia coli isolated from community toilet wastewater and stored drinking water in a slum in Bangladesh. Lett Appl Microbiol 2018; 66:542-548. [PMID: 29574855 DOI: 10.1111/lam.12878] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/19/2018] [Accepted: 03/09/2018] [Indexed: 12/21/2022]
Abstract
This study investigated the occurrence of Escherichia coli pathotypes in sanitary wastewater and drinking water in a Bangladeshi urban slum and the potential associations between these sources. We examined 621 E. coli isolates from sanitary wastewater and stored drinking water by multiplex PCR and dual-index sequencing, classifying them into eight pathotypes based on 14 virulence genes and additionally evaluating the possession of the human-specific E. coli genetic biomarker H8. The proportions of pathogenic E. coli were significantly different (P < 0·001) between wastewater (18·6%) and drinking water (1·7%). StIb-positive enterotoxigenic E. coli (ETEC) were predominant in wastewater, indicating that people in the site carried ETEC. In contrast, no ETEC was present in drinking water and the proportion of H8-positive isolates was significantly smaller (7·8%) than that in wastewater (16·3%) (P = 0·001). Our findings indicate that sanitary wastewater from the slum was heavily contaminated with pathogenic E. coli, posing a great health risk. Furthermore, E. coli contamination of drinking water could be derived from not only human but also other sources. SIGNIFICANCE AND IMPACT OF THE STUDY Sanitary wastewater from an urban slum was heavily contaminated with pathogenic Escherichia coli. It is worth noting a great health risk of accidental exposure to pathogenically contaminated wastewater improperly discharged in and around urban slums. The distinct difference in pathotypes between wastewater and drinking water and the significantly smaller positive proportion of the human-specific E. coli genetic biomarker (H8) in drinking water indicate that drinking water contamination could be derived from not only human but also other sources. This highlights that pathotyping in association with the H8 marker provides an indication of pathogen contamination sources of environmental transmission media.
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Affiliation(s)
- H Harada
- Graduate School of Global Environmental Studies, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Y Fujimori
- Graduate School of Global Environmental Studies, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - R Gomi
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, Japan
| | - Md N Ahsan
- Life Science School, Khulna University, Khulna, Bangladesh
| | - S Fujii
- Graduate School of Global Environmental Studies, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - A Sakai
- University of Marketing and Distribution Sciences, Nishi-ku, Kobe, Japan
| | - T Matsuda
- Research Center for Environmental Quality Management, Kyoto University, Otsu, Shiga, Japan
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5
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Pan Q, Li L, Shaikhutdinov S, Fujimori Y, Hollerer M, Sterrer M, Freund HJ. Model systems in heterogeneous catalysis: towards the design and understanding of structure and electronic properties. Faraday Discuss 2018; 208:307-323. [DOI: 10.1039/c7fd00209b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We discuss in this paper two case studies related to nano-particle catalyst systems: one concerns a model system for the Cr/SiO2 Phillips catalyst for ethylene polymerization and the other provides additional information on Au nano-particles supported on ultrathin MgO(100)/Ag(100) films.
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Affiliation(s)
- Q. Pan
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
| | - L. Li
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
| | - S. Shaikhutdinov
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
| | - Y. Fujimori
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
| | - M. Hollerer
- University of Graz
- Institute of Physics
- NAWI Graz
- Universitätsplatz 5
- 8010 Graz
| | - M. Sterrer
- University of Graz
- Institute of Physics
- NAWI Graz
- Universitätsplatz 5
- 8010 Graz
| | - H.-J. Freund
- Fritz-Haber-Institute of the Max-Planck Society
- Department of Chemical Physics
- 14195 Berlin
- Germany
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Hashimoto S, Fujimori Y, Yamazaki K, Baba T, Nishiyama S, Yamanaka Y, Ebisuda K, Kurihara K, Wakabayashi T, Imai T. P2388Efficay of intracoronary saline injection induced Pd/Pa ratio to evaluate functional significance of coronary artery stenosis assessed by fractional flow reserve. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2388] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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7
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Nishi N, Inokuchi M, Otsuki S, Fujimori Y, Kojima K. P-005 Clinical significance of Eph, FGFR, and PDGF expressions in advanced gastric cancers. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.05] [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: 11/14/2022] Open
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8
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Takatsuka H, Wakae T, Mori A, Okada M, Fujimori Y, Takemoto Y, Okamoto T, Sugihara A, Terada N, Kanamaru A, Kakishita E. Superior Vena Cava Syndrome after Bone Marrow Transplantation Caused by Aspergillosis: A Case Report. Hematology 2013; 7:169-72. [PMID: 12243980 DOI: 10.1080/1024533021000008137] [Citation(s) in RCA: 3] [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: 10/26/2022] Open
Abstract
Aspergillosis is known for the variety of unusual presentations in immuno-suppressed patients. We report a patient in whom aspergillosis caused the superior vena cava (SVC) syndrome. A 37-year-old woman became febrile soon after bone marrow transplantation (BMT). Chest radiography demonstrated a 5-cm mass extending from the right lung apex to the right supraclavicular fossa beside her Hickman catheter. She then developed SVC syndrome, which progressed despite treatment. Despite recovery of the white blood cell count, the patient continued to deteriorate, became comatose, suffered a cardiac arrest and died 31 days after BMT. Autopsy revealed Aspergillus infection at the apex of the right lung associated with innominate artery thrombosis.
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Affiliation(s)
- H Takatsuka
- Second Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan
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9
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Horikawa Y, Tsuchiya N, Yuasa K, Narita S, Saito M, Takayama K, Nara T, Tsuruta H, Obara T, Numakura K, Satoh S, Habuchi T, Hu X, Guo J, Lin Z, Sun L, Xu Z, Cang C, Wang G, Kanda T, Sakamoto K, Matsuki A, Ohashi R, Hirota S, Fujimori Y, Matsuda Y, Yajima K, Kosugi S, Hatakeyama K, Kitahara K, Watanabe M, Nakazono S, Wada N, Kakizaki H, Li J, Gong FJ, Sun PN, Shen L, Li Q, Li N, Qiu M, Liu J, Yi C, Luo D, Li Z, Gou H, Yang Y, Cao D, Shen Y, Wang X, Xu F, Bi F, Li Q, Zhang X, Li N, Wei W, Luo HY, Wang ZQ, Wang FH, Qiu MZ, Teng KY, Ruan DY, He YJ, Li YH, Xu RH, Matsusaka S, Mizunuma N, Suenaga M, Shinozaki E, Mishima Y, Terui Y, Hatake K, Nara E, Kodaira M, Mishima Y, Yokoyama M, Saotome T, Terui Y, Takahashi S, Hatake K, Nishimura N, Nakano K, Kodaira M, Ueda K, Yamada S, Mishima Y, Yokoyama M, Saotome T, Takahashi S, Terui Y, Hatake K, Nozawa M, Mochida Y, Nishigaki K, Nagae S, Uemura H, Oh SY, Jeong CY, Hong SC, Lee WS, Kim HG, Lee GW, Hwang IG, Jang JS, Kwon HC, Kang JH, Ozaka M, Ogura M, Matsusaka S, Shinozaki E, Suenaga M, Chin K, Mizunuma N, Hatake K, Pua PF, Ganzon D, Chan V, Sailaja K, Vishnupriya S, Raghunadharao D, Markandeya G, Reddy PRK, Reddanna P, Praveen D, Sakamoto K, Kanda T, Matsuki A, Takano T, Hanyu T, Yajima K, Kosugi S, Hirota S, Hatakeyama K, Shigekawa T, Ijichi N, Takayama S, Tsuda H, Ikeda K, Horie K, Osaki A, Saeki T, Inoue S, Subhashini J, Rajesh B, Rajesh I, Ravindran P, Takagi K, Chin K, Oba M, Kuboki Y, Ichimura T, Oto M, Kawazoe Y, Watanabe T, Ozaka M, Ogura M, Suenaga M, Shinozaki E, Matsusaka S, Mizunuma N, Hatake K, Ueda K, Saotome T, Yamada S, Nishimura N, Nara E, Nakano K, Kodaira M, Katsube A, Mishima Y, Terui Y, Yokoyama M, Takahashi S, Hatake K, Yao X, Yang Q, Li C, Diao L, Chen X, Yu Z, Zuo W, Wang Y, He Y, Zhang X, Cai S, Wang Z, Xu J, Zhan W, Zhang YF, Misumi M, Takeuchi H, Nakamiya N, Shigekawa T, Matsuura K, Fujiuchi N, Osaki A, Saeki T. CLINICAL OUTCOMES. Jpn J Clin Oncol 2011. [DOI: 10.1093/jjco/hyq254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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10
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Abstract
Oral mucosa progenitor/stem cells reside as a small-sized cell population that eventually differentiates concurrently with an increase in cell size. Activation of the mammalian target of rapamycin (mTOR) leads to an increase in cell size. We hypothesized that rapamycin, a specific inhibitor of mTOR, will maintain primary human oral keratinocytes as a small-sized, undifferentiated cell population capable of retaining their proliferative capacity. Primary, rapamycin-treated (2 nM, 20 nM) oral keratinocytes showed a diminished cell size that correlated with a higher clonogenicity, a longer-term proliferative potential, and a slower cycling cell population concurrent with decreased expression of a differentiation marker when compared with untreated cells. Only the 2-nM rapamycin-treated oral keratinocytes maintained their ability to regenerate oral mucosa in vitro after 15 weeks of culture. Rapamycin, a Food and Drug Administration-approved drug, may have applicability for use in creating a highly proliferative cell population for use in regenerative medicine.
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Affiliation(s)
- K Izumi
- Section of Oral and Maxillofacial Surgery, Department of Surgery, Life Sciences Institute, University of Michigan, A560 MSRB 2, 1150 West Medical Center Drive, Ann Arbor, MI 48109-0654, USA
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11
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Okumura K, Fujimori Y, Takagi A, Murate T, Ozeki M, Yamamoto K, Katsumi A, Matsushita T, Naoe T, Kojima T. Skewed X chromosome inactivation in fraternal female twins results in moderately severe and mild haemophilia B. Haemophilia 2008; 14:1088-93. [PMID: 18540891 DOI: 10.1111/j.1365-2516.2008.01786.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Female carriers of haemophilia B are usually asymptomatic; however, the disease resulting from different pathophysiological mechanisms has rarely been documented in females. In this study, we investigated the mechanisms responsible for haemophilia B in fraternal female twins. We sequenced the factor IX gene (F9) of the propositus, her father, a severe haemophilia B patient and the other family members. X chromosome inactivation was assessed by the methylation-sensitive HpaII-PCR assay using X-linked polymorphisms in human phosphoglycerate kinase 1 gene (PGK1) and glutamate receptor ionotropic AMPA 3 gene (GRIA3). The twins were found to be heterozygotes with a nonsense mutation (p.Arg384X) inherited from their father. The propositus, more severely affected twin, exhibited a significantly higher percentage of inactivation in the maternally derived X chromosome carrying a normal F9. The other twin also showed a skewed maternal X inactivation, resulting in a patient with mild haemophilia B. Thus, the degree of skewing of maternal X inactivation is closely correlated with the coagulation parameters and the clinical phenotypes of the twins. Furthermore, we identified a crossing-over in the Xq25-26 region of the maternal X chromosome of the more severely affected twin. This crossing-over was absent in the other twin, consistent with their fraternal state. Differently skewed X inactivation in the fraternal female twins might cause moderately severe and mild haemophilia B phenotypes, respectively.
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Affiliation(s)
- K Okumura
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
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12
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Kashiwagi T, Matsushita T, Ito Y, Hirashima K, Sanda N, Fujimori Y, Yamada T, Okumura K, Takagi A, Murate T, Katsumi A, Takamatsu J, Yamamoto K, Naoe T, Kojima T. L1503R is a member of group I mutation and has dominant-negative effect on secretion of full-length VWF multimers: an analysis of two patients with type 2A von Willebrand disease. Haemophilia 2008; 14:556-63. [PMID: 18397285 DOI: 10.1111/j.1365-2516.2008.01703.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Type 2A von Willebrand disease (VWD) is characterized by decreased platelet-dependent function of von Willebrand factor (VWF); this in turn is associated with an absence of high-molecular-weight multimers. Sequence analysis of the VWF gene from two unrelated type 2A VWD patients showed an identical, novel, heterozygous T-->G transversion at nucleotide 4508, resulting in the substitution of L1503R in the VWF A2 domain. This substitution, which was not found in 60 unrelated normal individuals, was introduced into a full-length VWF cDNA and subsequently expressed in 293T cells. Only trace amount of the mutant VWF protein was secreted but most of the same was retained in 293T cells. Co-transfection experiment of both wild-type and mutant plasmids indicated the dominant-negative mechanism of disease development; as more of mutant DNA was transfected, VWF secretion was impaired in the media, whereas more of VWF was stored in the cell lysates. Molecular dynamic simulations of structural changes induced by L1503R indicated that the mean value of all-atom root-mean-squared-deviation was shifted from those with wild type or another mutation L1503Q that has been reported to be a group II mutation, which is susceptible to ADAMTS13 proteolysis. Protein instability of L1503R may be responsible for its intracellular retention and perhaps the larger VWF multimers, containing more mutant VWF subunits, are likely to be mal-processed and retained within the cell.
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Affiliation(s)
- T Kashiwagi
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
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13
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Sanda N, Fujimori Y, Kashiwagi T, Yamada T, Okumura K, Takagi A, Murate T, Iwasaki T, Katsumi A, Yamamoto K, Matsushita T, Naoe T, Saito H, Kojima T. FOUR NOVEL CAUSATIVE MUTATIONS IDENTIFIED IN THE PROS1 GENE OF JAPANESE DEEP VEIN THROMBOSIS PATIENTS WITH PROTEIN S DEFICIENCY. J Thromb Haemost 2007. [DOI: 10.1111/j.1538-7836.2007.tb01832.x] [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: 11/30/2022]
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Mori Y, Ojima K, Fuujimori Y, Fujimori Y, Aoyagi I, Kusama H, Yamazaki Y, Kojima M, Kojima S, Shibata N, Itoh Y, Tajima N. Effects of mitiglinide on glucose-induced insulin release into the portal vein and fat-induced triglyceride elevation in prediabetic and diabetic OLETF rats. Endocrine 2006; 29:309-15. [PMID: 16785606 DOI: 10.1385/endo:29:2:309] [Citation(s) in RCA: 7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2005] [Revised: 12/02/2005] [Accepted: 12/12/2005] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The effect of single-dose mitiglinide on glucose and lipid metabolism was examined in OLETF rats with spontaneous type 2 diabetes in which the early insulin response following glucose challenge is known to diminish over time and become lost with aging. METHODS (1) With catheters inserted into the portal veins, 12-wk-old prediabetic OLETF rats were given an OGTT of 1 g/kg after 17 h of fasting. Eight rats each were orally given mitiglinide 1 mg/kg, nateglinide 50 mg/kg, or glibenclamide 1 mg/kg, vs 0.5% carboxymethylcellulose (CMC) as control, and were given an OGTT immediately afterward. Following oral administration of mitiglinide, nateglinide, glibenclamide, or 0.5% CMC, the 24-wk-old overt-diabetic OLETF rats were immediately given an OGTT of 1g/kg. (2) After 17 h of fasting, 24-wk-old OLETF rats were subjected to a fat-loading test. Eight rats each were given mitiglinide 3 mg/kg, glibenclamide 1 mg/kg, or glimepiride 1 mg/kg, vs 0.5% CMC, and were given soy oil 2 g/kg immediately afterward. They were also given mitiglinide orally and examined for LPL mRNA expression in their adipose tissue. RESULTS (1) After OGTT, mitiglinide produced a significant increase in portal insulin levels 15 min after its administration, as well as a significant decrease in peripheral glucose levels 15-120 min after its administration in the OLETF rats. Likewise, nateglinide produced an increase in portal insulin levels and a decrease in peripheral glucose levels shortly after its administration in these rats. Glibenclamide increased portal insulin levels for an extended time after its administration, and significantly decreased peripheral glucose levels in the rats 120-300 min after its administration in the rats. In contrast, as in the 12-wk-old rats, a precipitous rise in insulin secretion was seen in the portal vein of 24-wk-old rats given mitiglinide, which peaked 15 min after mitiglinide administration, but the insulin levels continued to increase for 120 min or longer in the 24-wk-old rats given glibenclamide. In addition, as in the 12-wk-old rats, a significant decrease in glucose levels in peripheral blood was noted 30 and 60 min after mitiglinide administration and 300 min after glibenclamide administration in the 24-wk-old rats. (2) Mitiglinide increased LPL mRNA expression 120 min after its administration, and significantly decreased peripheral TG and chylomicron- TG levels after fat challenge in the 24-wk-old OLETF rats. CONCLUSION Mitiglinide exhibited fast-onset and short-acting insulin-secretagogic effects, inhibiting post-glucose challenge increases in glucose levels and post-fat challenge increases in TG levels.
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Affiliation(s)
- Y Mori
- Department of Internal Medicine, National Hospital Organization, Utsunomiya National Hospital, Kawachi, Tochigi, Japan.
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15
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Takatsuka H, Wakae T, Mori A, Okada M, Fujimori Y, Okamoto T, Kakishita E, Hara H. Prognostic value of cyclic GMP in patients undergoing allogeneic bone marrow transplantation after conditioning with total body irradiation. Bone Marrow Transplant 2003; 31:905-8. [PMID: 12748667 DOI: 10.1038/sj.bmt.1703956] [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: 11/08/2022]
Abstract
This study was performed to investigate whether measurement of cyclic GMP (cGMP), a marker for nitric oxide production, before and after allogeneic bone marrow transplantation (BMT) with total body irradiation (TBI) conditioning was of prognostic value. cGMP levels were monitored in 23 consecutive patients who received TBI as conditioning for BMT, and were compared with the outcome. cGMP became positive during the aplastic phase after BMT in 12 patients. In nine of these 12 patients, cGMP level decreased during the recovery phase. Eight of the nine patients survived, one dying after relapse. In three other patients, the cGMP level continued to increase even during the recovery phase and they died of severe complications. cGMP became positive on day 0 of BMT and during the leukocyte recovery phase after BMT in two and seven of the 23 patients, respectively. Subsequently, all patients died of severe complications. The two patients who were negative for cGMP both before and after BMT survived without complications. These results suggest that monitoring cGMP from early after BMT may be useful for predicting outcome and that it may be a useful prognostic marker.
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MESH Headings
- Adolescent
- Adult
- Biomarkers/blood
- Blast Crisis/surgery
- Bone Marrow Transplantation
- Cyclic GMP/blood
- Cyclosporine/therapeutic use
- Drug Therapy, Combination
- Female
- Graft vs Host Disease/prevention & control
- Humans
- Immunosuppressive Agents/therapeutic use
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/surgery
- Leukemia, Myeloid, Acute/pathology
- Leukemia, Myeloid, Acute/surgery
- Male
- Methotrexate/therapeutic use
- Methylprednisolone/therapeutic use
- Monitoring, Physiologic/methods
- Myelodysplastic Syndromes/pathology
- Myelodysplastic Syndromes/surgery
- Neoplasm Staging
- Nitric Oxide/metabolism
- Prognosis
- Transplantation Conditioning/methods
- Transplantation, Homologous/immunology
- Transplantation, Homologous/physiology
- Treatment Outcome
- Whole-Body Irradiation/methods
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Affiliation(s)
- H Takatsuka
- Division of Hematology and Oncology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
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16
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Takatsuka H, Wakae T, Mori A, Okada M, Fujimori Y, Takemoto Y, Okamoto T, Kanamaru A, Kakishita E. Endothelial damage caused by cytomegalovirus and human herpesvirus-6. Bone Marrow Transplant 2003; 31:475-9. [PMID: 12665843 DOI: 10.1038/sj.bmt.1703879] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.9] [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: 11/09/2022]
Abstract
Infection with cytomegalovirus (CMV) or human herpesvirus-6 (HHV-6) may have a role in vascular endothelial damage after bone marrow transplantation (BMT). In total, 41 patients who underwent BMT were classified into four groups (12, 10, 7, and 12 patients who were infected with both CMV and HHV-6, CMV alone, HHV-6, and neither virus, respectively). Levels of thrombomodulin, plasminogen activator inhibitor-1, and cyclic GMP were 7.5+/-1.7 FU/ml, 76.4+/-24.1 ng/ml, and 9.51+/-1.1 pmol/ml, respectively, in the patients with both viruses, while the respective values were 2.9+/-0.67 FU/ml, 33.8+/-8.09 ng/ml, and 2.90+/-1.4 pmol/ml in patients infected with CMV alone, 4.8+/-0.96 FU/ml, 47.7+/-9.21 ng/ml, and 5.48+/-0.55 pmol/ml in patients with HHV-6 alone, and 1.6+/-0.39, 17.5+/-7.88 ng/ml, and 0.45+/-0.3 in those with neither virus. All three markers were significantly higher in the three groups with at least one virus than in the uninfected patients (P<0.05), and were also higher in patients with HHV-6 alone than in those with CMV alone (P<0.05). These results suggest that infection by CMV or HHV-6 causes vascular endothelial injury, with HHV-6 having a stronger effect than CMV, and combined infection having a stronger effect than either virus alone. Such viral infection may be a cause of thrombotic microangiopathy after BMT.
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Affiliation(s)
- H Takatsuka
- Second Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
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17
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Wakae T, Takatsuka H, Mori A, Okada M, Fujimori Y, Okamoto T, Hara H, Kakishita E. Influence of Helicobacter pylori on platelets after bone marrow transplantation from unrelated donors. Bone Marrow Transplant 2003; 31:493-6. [PMID: 12665846 DOI: 10.1038/sj.bmt.1703884] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study was performed to clarify the influence of Helicobacter pylori on the platelet count in patients undergoing bone marrow transplantation (BMT) from unrelated donors. Of 23 consecutive patients undergoing BMT from unrelated donors, the H. pylori antibody test did not change from before conditioning until recovery of the platelet count in 15 patients. These patients were classified into H. pylori antibody-positive (n=8) and -negative (n=7) groups. In the H. pylori antibody-positive group, the platelet count exceeded 20 x 10(9)/l significantly faster after BMT, than in the H. pylori antibody-negative group. When myelosuppression was most severe, the interleukin-6 (IL-6) level was significantly higher in the positive group than in the negative group (67.0+/-10.6 vs 9.9+/-2.4 pg/ml, P<0.05). In addition, the thrombopoietin level was significantly lower in the positive group than in the negative (510.1+/-313.9 vs 3209.1+/-2006.7 pg/ml, P<0.01). These data suggest that H. pylori infection accelerates recovery of the platelet count after BMT from unrelated donors, possibly by stimulating IL-6 production.
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Affiliation(s)
- T Wakae
- Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
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18
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Takatsuka H, Takemoto Y, Yamada S, Mori A, Wada H, Fujimori Y, Okamoto T, Kanamaru A, Kakishita E. Similarity between eruptions induced by sulfhydryl drugs and acute cutaneous graft-versus-host disease after bone marrow transplantation. Hematology 2002; 7:55-7. [PMID: 12171778 DOI: 10.1080/10245330290020135] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [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: 10/28/2022] Open
Abstract
Cutaneous GVHD is histologically similar to eruptions induced by drugs containing a sulfhydryl group. The levels of interleukin-2 and interleukin-2 receptor were determined in a group of patients undergoing bone marrow transplantation (BMT) without graft-versus-host disease or any other complications and in a group with cutaneous graft-versus-host disease (GVHD) alone. In patients who only developed cutaneous GVHD, both interleukin-2 and inter-leukin-2 receptor levels were elevated when the disease was evident. As the elevation of these parameters became more marked, the grade of cutaneous graft versus-host disease also increased. In some patients, only one of the two parameters was elevated and the grade of graft-versus-host disease was low or no skin manifestations were seen. These findings suggest that interleukin-2 and interleukin-2 receptor act together in the development of cutaneous GVHD. This study also showed that the mechanism of cutaneous GVHD resembles that involved in the induction of eruptions by sulfhydryl-containing drugs.
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Affiliation(s)
- H Takatsuka
- Second Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinimiya, Hyogo, 663-8501, Japan
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19
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Wada H, Mori A, Okada M, Takatsuka H, Tamura A, Seto Y, Iwata N, Fujimori Y, Okamoto T, Takemoto Y, Kakishita E. Treatment of intestinal graft-versus-host disease using betamethasone enemas. Transplantation 2001; 72:1451-3. [PMID: 11685119 DOI: 10.1097/00007890-200110270-00020] [Citation(s) in RCA: 7] [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: 11/25/2022]
Abstract
Intestinal graft-versus-host disease (GVHD) can readily easily induce generalized metabolic disturbance that influences morbidity and mortality after allogeneic bone marrow transplantation. Although adding a new drug or increasing the doses of immunosuppressive agents will probably be effective for controlling intestinal GVHD, the systemic side effects of such therapy cannot be ignored. In this study, we used betamethasone retention enemas as a local treatment for eight patients with refractory and/or severe intestinal GVHD. Six of the eight patients showed improvement of diarrhea and/or abdominal pain, with a reduction in the stage of GVHD. When treatment with betamethasone enemas was continued for 10 to 27 days in the 6 responding patients, no severe toxicity was observed. One patient failed to respond to treatment and another could not tolerate the enemas. Despite some uncertainty regarding the indications and duration of treatment, betamethasone enemas seem to be a potential alternative method for the management of intestinal GVHD.
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Affiliation(s)
- H Wada
- Second Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya City, Hyogo 663-8501, Japan
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20
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Okamoto T, Okada M, Takatsuka H, Wada H, Fujimori Y, Kakishita E. Relationship between immunological abnormalities and paroxysmal nocturnal haemoglobinuria-associated clones in myelodysplastic syndromes. Br J Haematol 2001; 114:731-3. [PMID: 11553007 DOI: 10.1046/j.1365-2141.2001.02924.x] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Takehara H, Tada S, Kataoka M, Matsuo K, Ueno Y, Ozaki S, Miyake T, Fujimori Y, Yamadori I, Harada M. Intercellular adhesion molecule-1 in patients with idiopathic interstitial pneumonia. Acta Med Okayama 2001; 55:205-11. [PMID: 11512562 DOI: 10.18926/amo/31991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study focuses on a possible role of intercellular adhesion molecule-1 (ICAM-1) in interstitial pulmonary diseases. We determined a soluble form of ICAM-1 in serum and bronchoalveolar lavage fluid (BALF) using ELISA in patients with usual interstitial pneumonia (UIP), bronchiolitis obliterance organizing pneumonia (BOOP), or nonspecific interstitial pneumonia (NSIP). In addition, we investigated the expression of ICAM-1 in the lung tissues of these patients by means of immunohistochemical staining. Serum levels of soluble ICAM-1 were significantly higher in patients with UIP or NSIP than in healthy subjects, and were also high in patients with BOOP. The soluble ICAM-1 in BALF tended to be higher in patients with UIP, BOOP, or NSIP than in normal subjects. A significant correlation was seen between soluble levels of ICAM-1 in serum and BALF. In the immunostaining of ICAM-1 of the lung tissues, ICAM-1 expression was more pronounced in patients with UIP than in those with BOOP or NSIP. The increased expression of ICAM-1 was seen in type II alveolar epithelium and vascular endothelium in patients with interstitial pneumonia. A positive correlation was observed between the degree of ICAM-1 expression in the lung tissues and the BALF levels of soluble ICAM-1. The expression of ICAM-1 in type II alveolar epithelium suggests that ICAM-1 plays a specific role in the fibrotic process of the lung, and that the measurement of soluble ICAM-1 in sera and BALF could be a useful marker for evaluating the progression of fibrosis.
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Affiliation(s)
- H Takehara
- Department of Internal Medicine II Okayama University Medical School, Japan.
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22
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Okamoto T, Takatsuka H, Fujimori Y, Wada H, Iwasaki T, Kakishita E. Increased hepatocyte growth factor in serum in acute graft-versus-host disease. Bone Marrow Transplant 2001; 28:197-200. [PMID: 11509938 DOI: 10.1038/sj.bmt.1703095] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2001] [Accepted: 04/26/2001] [Indexed: 12/22/2022]
Abstract
Hepatocyte growth factor (HGF) was reported to be effective in preventing acute graft-versus-host disease (GVHD) in a murine model. We examined serum HGF concentrations in 38 patients receiving allogeneic bone marrow transplants, and investigated the relationship of serum HGF concentrations to severity of acute GVHD. More HGF was present in sera from patients with than without acute GVHD. Serum HGF correlated significantly with grade of acute GVHD. Furthermore, serum HGF correlated with serum concentrations of C-reactive protein, gamma-glutamyltranspeptidase (GTP), and aspartate aminotransferase (AST). Serum concentrations of HGF in transplanted patients without GVHD were consistently low, while those in patients with acute GVHD increased with exacerbation. We conclude that HGF was produced during induction of the GVH reaction, and probably increased as a physiological response.
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Affiliation(s)
- T Okamoto
- Second Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
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23
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Itoi H, Fujimori Y, Tsutsui H, Matsui K, Futatsugi S, Okamura H, Hara H, Hada T, Kakishita E, Nakanishi K. Fas ligand-induced caspase-1-dependent accumulation of interleukin-18 in mice with acute graft-versus-host disease. Blood 2001; 98:235-7. [PMID: 11418486 DOI: 10.1182/blood.v98.1.235] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [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: 11/20/2022] Open
Abstract
Acute graft-versus-host disease (aGVHD), the fatal side effects of bone marrow transplantation, was shown to be accompanied by elevation of serum levels of interleukin 18 (IL-18). In this study, the mechanism underlying the accumulation of IL-18 in aGVHD in mice was investigated. Lethally irradiated recipients having transplantation with H-2 disparate donor splenocytes demonstrated aGVHD and contained markedly elevated serum levels of IL-18. In contrast, recipients having transplantation with gld/gld spleen cells, which lack functional Fas ligand (FasL), contained only normal ranges of IL-18, indicating FasL-mediated IL-18 release in aGVHD. The wild-type hosts engrafted with caspase-1-deficient cells revealed marked increases of IL-18 similar to those engrafted with wild-type cells, whereas caspase-1-deficient recipients engrafted with wild-type cells showed only a slight elevation of serum IL-18, indicating that IL-18 elevation is derived from host cells in a caspase-1-dependent manner. These results suggest FasL-mediated caspase-1-dependent IL-18 secretion in aGVHD in mice.
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Affiliation(s)
- H Itoi
- Second Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
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24
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Fujimori Y, Saheki K, Itoi H, Okamamoto T, Kakishita E. Increased expression of Fas (APO-1, CD95) on CD4+ and CD8+ T lymphocytes during total body irradiation. Acta Haematol 2001; 104:193-6. [PMID: 11279310 DOI: 10.1159/000046514] [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: 11/19/2022]
Abstract
Fas/APO-1 (CD95) is a cell surface molecule that can transduce apoptotic signals into cells. We examined the expression of Fas antigen on CD4+ and CD8+ T cells of patients who received total body irradiation (TBI) as a preparative regimen for allogeneic bone marrow transplantation. Numbers of peripheral blood lymphocytes were significantly reduced after TBI. Cytofluorometric analysis revealed a significantly higher expression of Fas on CD4+ and CD8+ T cells after TBI. Serum soluble Fas concentrations were significantly elevated after TBI. Changes in the Fas system were therefore accompanied by TBI-induced lymphocytopenia, suggesting that Fas plays a role in irradiation-induced apoptosis in vivo.
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Affiliation(s)
- Y Fujimori
- Second Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan.
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25
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Fujimori Y, Maeda S, Saeki M, Morisaki I, Kamisaki Y. Inhibition by nifedipine of adherence- and activated macrophage-induced death of human gingival fibroblasts. Eur J Pharmacol 2001; 415:95-103. [PMID: 11245857 DOI: 10.1016/s0014-2999(01)00810-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [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: 10/18/2022]
Abstract
The effects of nifedipine on the death and proliferation of gingival fibroblasts were investigated to elucidate the mechanism of gingival overgrowth that is associated with chronic administration of Ca2+ channel blockers. The number of adhered viable and dead fibroblasts obtained from healthy human gingiva increased after confluence, whereas cell death was inhibited by nifedipine in a concentration-dependent manner. A similar inhibition was also observed in the presence of other calcium channel blockers, such as nicardipine, diltiazem, and verapamil. When gingival fibroblasts were co-cultured with RAW264 (macrophage-like) cells, lipopolysaccharide (LPS) caused the concentration-dependent death of fibroblasts. Nifedipine significantly inhibited the LPS-induced cell death. Although neither LPS nor N-ethyl-2-(1-ethyl-2-hydroxy-2-nitroso-hydrazino)-ethanamine, a nitric oxide donor, directly caused fibroblast death, 3-morpholino-sydnonimine (SIN-1), a peroxynitrite donor, induced fibroblast death, regardless of the presence of RAW cells. The cell death induced by SIN-1 was not affected by nifedipine treatment. LPS stimulation caused an increase in the immunoreactivity of inducible nitric oxide synthase (iNOS) and in the nitrite concentration in the incubation medium of RAW cells. The induction of iNOS was completely prevented by the incubation with nifedipine. The inhibition by nifedipine of nitrite production in RAW cells was also observed after treatment with nicardipine, but not with either diltiazem or verapamil. Therefore, the inhibition by nifedipine of both adherence- and LPS-stimulated macrophage-induced death of fibroblasts may be the mechanism of gingival overgrowth seen during chronic treatment with Ca(2+) channel blockers.
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Affiliation(s)
- Y Fujimori
- Department of Pharmacology, Graduate School of Dentistry, Osaka University, 1-8 Yamada-Oka, Suita 565-0871, Japan.
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26
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Okamoto T, Nishimura Y, Yamada S, Yamada S, Itoh T, Mori A, Saheki K, Okada M, Takatsuka H, Wada H, Tamura A, Fujimori Y, Kakishita E. Long-term administration of oral low-dose topoisomerase II inhibitors, MST-16 and VP-16, for refractory or relapsed non-Hodgkin's lymphoma. Acta Haematol 2001; 104:128-30. [PMID: 11154989 DOI: 10.1159/000039746] [Citation(s) in RCA: 10] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
It is known that the topoisomerase II inhibitors, MST-16 (sobuzoxane) and VP-16 (etoposide), are effective for the treatment of lymphoma. Five patients with refractory or relapsed non-Hodgkin's lymphoma (NHL) were treated with a combination of oral MST-16 and VP-16 over a long period. Two patients had severely refractory NHL. The remaining 3 patients could not be treated with intensive chemotherapy because of severe organ dysfunction or a poor hematopoietic reserve. All 5 are alive and well after MST-16 and VP-16 treatment. MST-16 and VP-16 are effective for NHL when intensive chemotherapy is ineffective or contraindicated.
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MESH Headings
- Administration, Oral
- Adult
- Antineoplastic Combined Chemotherapy Protocols/adverse effects
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Drug Administration Schedule
- Drug Resistance, Neoplasm
- Etoposide/administration & dosage
- Etoposide/adverse effects
- Female
- Follow-Up Studies
- Humans
- Lymphoma, B-Cell/drug therapy
- Lymphoma, B-Cell/enzymology
- Lymphoma, Follicular/drug therapy
- Lymphoma, Follicular/enzymology
- Lymphoma, Large B-Cell, Diffuse/drug therapy
- Lymphoma, Large B-Cell, Diffuse/enzymology
- Lymphoma, Non-Hodgkin/drug therapy
- Lymphoma, Non-Hodgkin/enzymology
- Lymphoma, T-Cell/drug therapy
- Lymphoma, T-Cell/enzymology
- Male
- Middle Aged
- Piperazines/administration & dosage
- Piperazines/adverse effects
- Recurrence
- Topoisomerase II Inhibitors
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Affiliation(s)
- T Okamoto
- Second Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
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27
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Yanaihara N, Kohno T, Takakura S, Takei K, Otsuka A, Sunaga N, Takahashi M, Yamazaki M, Tashiro H, Fukuzumi Y, Fujimori Y, Hagiwara K, Tanaka T, Yokota J. Physical and transcriptional map of a 311-kb segment of chromosome 18q21, a candidate lung tumor suppressor locus. Genomics 2001; 72:169-79. [PMID: 11401430 DOI: 10.1006/geno.2000.6454] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [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: 11/22/2022]
Abstract
Here, we report the complete genomic sequence and the characterization of the 311-kb region of 18q21, a candidate tumor suppressor locus containing a region of homozygous deletion in a lung cancer cell line, Ma29. This region contained two known genes, SMAD4 and ME2 (mitochondrial malate oxydoreductase), and two novel genes, D29 (deleted in Ma29 HGMW-approved symbol ELAC1), encoding an evolutionarily conserved protein, and B29 (beside the Ma29 deletion HGMW-approved symbol C18orf3), with no significant homology to any known genes. The deleted DNA segment in Ma29, which was estimated to be 195 kb in size, included all the coding exons of ME2 and D29, but not the coding exons of SMAD4 and B29. The deleted region also included exon 0, a 5'-noncoding exon, of SMAD4, and the expression of SMAD4 was greatly reduced in Ma29 cells. Mutations of SMAD4 and D29 were detected in 1 of 45 lung cancer cell lines examined, while those of ME2 and B29 were not detected, indicating that these four genes are not major targets for 18q21 deletions. The physical and transcriptional map constructed in this study will provide basic information for the identification of a tumor suppressor gene(s) at 18q21 involved in lung carcinogenesis.
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Affiliation(s)
- N Yanaihara
- Biology Division, National Cancer Center Research Institute, 1-1, Tsukiji 5-chome, Chuo-ku, Tokyo, 104-0045, Japan
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28
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Takatsuka H, Okamoto T, Yamada S, Fujimori Y, Tamura S, Wada H, Okada M, Takemoto Y, Nishimura H, Tachibana H, Kanamaru A, Kakishita E. New imaging findings in a patient with central nervous system dysfunction after bone marrow transplantation. Acta Haematol 2001; 103:203-5. [PMID: 11014894 DOI: 10.1159/000041050] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [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: 11/19/2022]
Abstract
Central nervous system disorders are an important complication of bone marrow transplantation (BMT). We have recently performed cerebral angiography to examine central nervous system dysfunction in a 22-year-old woman with acute lymphoblastic leukaemia who had undergone BMT. Angiography demonstrated multiple stenoses and occlusions in the peripheral branches of the anterior and middle cerebral arteries, a pattern similar to that seen in vasculitis. She was thought to most likely have cytomegalovirus (CMV) vasculitis, but other forms of vasculitis, such as angiitis-like-syndrome-associated graft-versus-host disease could not be excluded. This case suggests that CMV vasculitis may cause central nervous system dysfunction after BMT and that imaging studies may provide useful information about central nervous system disorders in these patients.
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Affiliation(s)
- H Takatsuka
- Second Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
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29
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Mori A, Wada H, Okada M, Takatsuka H, Tamura A, Fujimori Y, Okamoto T, Takemoto Y, Kanamaru A, Kakishita E. Acute promyelocytic leukemia with marrow fibrosis at initial presentation: possible involvement of transforming growth factor-beta(1). Acta Haematol 2001; 103:220-3. [PMID: 11014898 DOI: 10.1159/000041054] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/19/2022]
Abstract
Although the occurrence of marrow fibrosis in acute myeloid leukemia has been described, there have been no reports of acute promyelocytic leukemia (APL) associated with marrow fibrosis. Here we describe an APL patient with severe marrow fibrosis at initial presentation. He had the typical manifestations of APL, except for marrow fibrosis. Complete remission was achieved by treatment with all-trans retinoic acid plus chemotherapy, and his marrow fibrosis gradually improved concomitantly with the decrease in leukemic cells. To clarify the mechanism of marrow fibrosis in this patient, we investigated the expression of genes for several cytokines promoting fibrosis by the reverse transcriptase polymerase chain reaction methods. An overexpression of transforming growth factor-beta(1) was noted in his leukemic cells at initial presentation, whereas no increase in expression was observed at the time of relapse when he no longer had marrow fibrosis. These findings suggest that overexpression of transforming growth factor-beta(1) was involved in the development of marrow fibrosis in this APL patient.
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MESH Headings
- Adult
- Bone Marrow/metabolism
- Bone Marrow/pathology
- Humans
- Leukemia, Promyelocytic, Acute/complications
- Leukemia, Promyelocytic, Acute/drug therapy
- Leukemia, Promyelocytic, Acute/metabolism
- Male
- Neoplasm Proteins/blood
- Neoplasm Proteins/genetics
- Oncogene Proteins, Fusion/blood
- Oncogene Proteins, Fusion/genetics
- Primary Myelofibrosis/drug therapy
- Primary Myelofibrosis/etiology
- Primary Myelofibrosis/metabolism
- Protein Isoforms
- RNA, Messenger/blood
- RNA, Neoplasm/blood
- Recombinant Fusion Proteins/blood
- Recombinant Fusion Proteins/genetics
- Remission Induction
- Reverse Transcriptase Polymerase Chain Reaction
- Transforming Growth Factor beta/genetics
- Transforming Growth Factor beta/metabolism
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Affiliation(s)
- A Mori
- Second Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
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30
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Yamada S, Takatsuka H, Takemoto Y, Wada H, Fujimori Y, Okamoto T, Kanamaru A, Kakishita E. Urinary trypsin inhibitor concentration can predict the immunological insult of chemotherapy and complications after bone marrow transplantation. Bone Marrow Transplant 2001; 27:195-9. [PMID: 11281390 DOI: 10.1038/sj.bmt.1702755] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Urinary trypsin inhibitor has attracted attention as an index of the systemic inflammatory response syndrome. In this study, the urine concentration of trypsin inhibitor was measured to compare the immunological insult of conventional chemotherapy and conditioning chemotherapy for bone marrow transplantation. We also investigated whether urinary trypsin inhibitor was a useful index of the complications and outcome of bone marrow transplantation. Urinary trypsin inhibitor concentration was determined before chemotherapy, on the day after finishing chemotherapy (day 0 of transplantation), and during recovery of the white cell count, in 17 patients (seven receiving conventional chemotherapy and 10 receiving conditioning for bone marrow transplantation). Urinary trypsin inhibitor concentrations were significantly higher after conditioning for bone marrow transplantation than after conventional chemotherapy (P < 0.001), indicating that conditioning was more invasive. After bone marrow transplantation, the incidence of severe complications and the mortality rate were higher in patients whose urinary trypsin inhibitor concentrations rose during recovery of the white cell count. Comparison of urinary trypsin inhibitor concentrations suggested that conditioning for bone marrow transplantation was more invasive than conventional chemotherapy. This study also suggested that the urine concentration of trypsin inhibitor could be useful for predicting the risk of complications and outcome of bone marrow transplantation.
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Affiliation(s)
- S Yamada
- Second Department of Internal Medicine, Hyogo College of Medicine, Japan
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31
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Takatsuka H, Takemoto Y, Yamada S, Mori A, Okada M, Wada H, Fujimori Y, Okamoto T, Kanamaru A, Kakishita E. Herpesvirus Infection in Patients Following Bone Marrow Transplantation: Influence of Viral Reactivation on Prognosis. Hematology 2001; 5:441-5. [PMID: 27419347 DOI: 10.1080/10245332.2001.11746541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Viral infections are an important cause of death following bone marrow transplantation. We investigated the clinical significance of herpesvirus infection. The nine subjects consisted of five patients with CML, two with ALL, and one each with AML and the myelodysplastic syndrome. Viral markers were investigated in bronchoalveolar lavage fluid and peripheral blood lymphocytes before and 35 days after bone marrow transplantation, as well as in peripheral blood lymphocytes at 100 days afterwards. Cytomegalovirus DNA became positive in four patients after bone marrow transplantation. Human herpesvirus-6 DNA became positive in two patients and human herpesvirus 7 DNA became negative in the same two patients. Two of the nine patients died of disease recurrence. Two other patients died of complications, and both of them became positive human herpesvirus-6 after the procedure. These results suggested the possibility that infection with not only cytomegalovirus but also other human herpesvirus can influence the prognosis and complications of bone marrow tansplantation.
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Affiliation(s)
- H Takatsuka
- a Second Department of Internal Medicine , Hyogo College of Medicine , Hyogo , Osaka , Japan
| | - Y Takemoto
- a Second Department of Internal Medicine , Hyogo College of Medicine , Hyogo , Osaka , Japan
| | - S Yamada
- a Second Department of Internal Medicine , Hyogo College of Medicine , Hyogo , Osaka , Japan
| | - A Mori
- a Second Department of Internal Medicine , Hyogo College of Medicine , Hyogo , Osaka , Japan
| | - M Okada
- a Second Department of Internal Medicine , Hyogo College of Medicine , Hyogo , Osaka , Japan
| | - H Wada
- a Second Department of Internal Medicine , Hyogo College of Medicine , Hyogo , Osaka , Japan
| | - Y Fujimori
- a Second Department of Internal Medicine , Hyogo College of Medicine , Hyogo , Osaka , Japan
| | - T Okamoto
- b Third Department of Internal Medicine , Kinki University School of Medicine , Osaka , Japan
| | - A Kanamaru
- b Third Department of Internal Medicine , Kinki University School of Medicine , Osaka , Japan
| | - E Kakishita
- a Second Department of Internal Medicine , Hyogo College of Medicine , Hyogo , Osaka , Japan
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Takatsuka H, Yamada S, Okamoto T, Fujimori Y, Wada H, Iwata N, Kanamaru A, Kakishita E. Predicting the severity of intestinal graft-versus-host disease from leukotriene B4 levels after bone marrow transplantation. Bone Marrow Transplant 2000; 26:1313-6. [PMID: 11223971 DOI: 10.1038/sj.bmt.1702712] [Citation(s) in RCA: 10] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Intestinal graft-versus-host disease (GVHD) produces clinical manifestations and histological changes resembling those of ulcerative colitis and has been treated with drugs which are used for ulcerative colitis. These two conditions also resemble each other with respect to changes of cytokines. Accordingly, we investigated whether the level of leukotriene B4, a risk factor for ulcerative colitis, was also a risk factor or prognostic indicator for intestinal GVHD. The pre-conditioning leukotriene B4 level was significantly related to the grade of intestinal GVHD in 42 patients (P < 0.01). Compared with patients who did not develop severe intestinal GVHD after bone marrow transplantation, those who did had significantly higher interleukin-2 and interferon-gamma levels during the aplastic phase (P <0.01), followed by higher tumor necrosis factor-alpha levels during the recovery phase (P < 0.0001), with significant elevation of tumor necrosis factor-alpha and interferon-gamma occurring in association with exacerbations of intestinal GVHD (P < 0.001). These findings suggest a similarity between the pathogenesis of ulcerative colitis and intestinal GVHD and raise the possibility that leukotriene B4 may be a useful prognostic indicator for intestinal GVHD.
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Affiliation(s)
- H Takatsuka
- Second Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
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Tamura S, Saheki K, Takatsuka H, Wada H, Fujimori Y, Okamoto T, Takemoto Y, Hashimoto-Tamaoki T, Furuyama J, Kakishita E. Early detection of relapse and evaluation of treatment for mixed chimerism using fluorescence in situ hybridization following allogeneic hematopoietic cell transplant for hematological malignancies. Ann Hematol 2000; 79:622-6. [PMID: 11131921 DOI: 10.1007/s002770000204] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [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: 10/28/2022]
Abstract
In order to detect chimerism, fluorescence in situ hybridization (FISH) and cytogenetic analyses were performed on bone marrow cells from 47 patients with hematological malignancies following allogeneic hematopoietic cell transplant (HCT). The dual-color XY, major Bcr-Abl (M-Bcr-Abl), and specific alpha-satellite probes were used for sex-mismatched HCT, chronic myeloid leukemia (CML), and myelodysplastic syndrome (MDS) cases with karyotypic abnormalities before HCT, respectively. Donor cells were found using FISH analysis in all 32 cases examined within 2 months following HCT, confirming engraftment. In six cases, however, cytogenetic analysis failed to detect donor cells due to lack of metaphases. Relapse occurred in four of the six cases in which mixed chimerism was detected using FISH analysis after 6 months of HCT. In contrast, after 12 months of HCT, no relapse was found in 24 patients without host cells. For two patients with mixed chimerism, gradual reduction of immunosuppressants or donor lymphocyte infusion resulted in the disappearance of host cells as analyzed using FISH analysis. In three extramedullary relapse cases, however, cytogenetic relapse preceded morphological and FISH relapse. These findings suggest that FISH analysis is more useful for detecting residual host cells after HCT, and the combination of FISH and cytogenetic analyses provide a more detailed evaluation for HCT patients. The results also indicate that monitoring of mixed chimerism using FISH analysis after 6 months of HCT is important for allowing the early detection of hematological relapse.
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Affiliation(s)
- S Tamura
- Second Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan.
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Chugun A, Uchide T, Fujimori Y, Temma K, Hara Y, Sasaki T, Akera T. Anti-muscarinic actions of mitoxantrone in isolated heart muscles of guinea pigs. Eur J Pharmacol 2000; 407:183-9. [PMID: 11050306 DOI: 10.1016/s0014-2999(00)00729-9] [Citation(s) in RCA: 7] [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: 11/21/2022]
Abstract
A hypotheses that mitoxantrone is a competitive antagonist at muscarinic cholinergic receptors was examined in guinea-pig hearts. In isolated left atrial muscle preparations, electrically paced at 2 Hz, the muscarinic agonist, carbachol, caused a concentration-dependent decrease in developed tension. Mitoxantrone caused a parallel right-ward shift of the concentration-response curve for carbachol. Schild plots for the effect of mitoxantrone on the carbachol concentration-response relationship were linear with a slope of 0.88 which was not significantly different from the unity. The right-ward shift of the carbachol concentration-response relationship by mitoxantrone significantly reversed after an additional incubation with a mitoxantrone-free solution, although the reversal was incomplete after a 2-h incubation in the mitoxantrone-free solution. Mitoxantrone caused a concentration-dependent displacement of specific [3H]quinuclidinyl benzilate binding to membrane preparations obtained from ventricular muscles of guinea-pig hearts. These results indicate that mitoxantrone acts as a competitive antagonist for the muscarinic receptors.
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Affiliation(s)
- A Chugun
- Department of Veterinary Pharmacology, School of Veterinary Medicine and Animal Sciences, Kitasato University, 35-1, Higashi 23-bancho, Aomori 034-8628, Towada, Japan
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Affiliation(s)
- Y Fujimori
- The Second Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya
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Kimura S, Cheng J, Ida H, Hao N, Fujimori Y, Saku T. Perlecan (heparan sulfate proteoglycan) gene expression reflected in the characteristic histological architecture of salivary adenoid cystic carcinoma. Virchows Arch 2000; 437:122-8. [PMID: 10993271 DOI: 10.1007/s004280000209] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [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: 10/27/2022]
Abstract
In order to determine the role of the basement membrane-type heparan sulfate proteoglycan (HSPG), known as perlecan, in the formation of the characteristic cribriform 'structures of salivary adenoid cystic carcinomas, the mode of expression of mRNA for the core protein of HSPG was investigated by using in situ hybridization (ISH) both in surgical specimens and in a cell system (ACC3) of adenoid cystic carcinomas. In the surgical specimens, the mRNA for the HSPG core was more intensely expressed in solid tumor cell nests, especially in smaller ones. Within the nests, the signals were detected almost exclusively in cuboidal cells forming small pseudocysts. In contrast, signals were absent in flat cells forming large pseudocysts or in carcinoma cell nests attaching to the peripheral nerves or blood vessels. In normal salivary gland tissues, myoepithelial cells expressed the mRNA at a high level, but acinar and duct epithelial cells did not. In the time-course experiment of ACC3 cells, signals for HSPG core increased with time and reached the maximum on day 4, decreasing thereafter in a culture condition in which cells reached confluence in a week. The results indicate that HSPG is biosynthesized by adenoid cystic carcinoma cells which are in the proliferation phase, and that tumor cells producing HSPG tend to form initial structures of stromal pseudocysts.
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Affiliation(s)
- S Kimura
- Department of Pathology, Faculty of Dentistry, Niigata University, Japan
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Takatsuka H, Takemoto Y, Yamada S, Wada H, Tamura S, Fujimori Y, Okamoto T, Suehiro A, Kanamaru A, Kakishita E. Complications after bone marrow transplantation are manifestations of systemic inflammatory response syndrome. Bone Marrow Transplant 2000; 26:419-26. [PMID: 10982289 DOI: 10.1038/sj.bmt.1702517] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.5] [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
Bone marrow transplantation has been established as a useful treatment for various hematological disorders and is now performed widely, but the mortality rate is still high due to various complications. A clear therapeutic policy for such complications has not yet been established because of their complex nature. We investigated whether the major complications occurring after bone marrow transplantation could be classified as aspects of the systemic inflammatory response syndrome. Subjects were 10 patients who developed severe complications after bone marrow transplantation (graft-versus-host disease, thrombotic microangiopathy, respiratory disorders, and cytomegalovirus interstitial pneumonitis) and 16 patients without complications. Their symptoms, serum cytokines, and factors related to vascular endothelial damage were compared before and after transplantation. Whereas all 10 patients who developed complications had fever in the aplastic phase after transplantation, 15 of the 16 patients without complications remained afebrile (P < 0.001, t-test). When compared with the patients who did not develop complications, the patients with complications also showed significantly higher cytokine levels during the recovery phase after transplantation (P < 0.0001, t-test). Thus, the patients with complications developed fever in the aplastic phase and showed an increase of cytokines during the recovery phase, which triggered the occurrence of vascular endothelial damage shown by factors such as the thrombomodulin and plasminogen activator inhibitor type 1. This sequence of events corresponds with that occurring during systemic inflammatory response syndrome, so many of the complications of bone marrow transplantation can be considered as manifestations of this syndrome.
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Affiliation(s)
- H Takatsuka
- Second Department of Internal Medicine, Hyogo College of Medicine, Japan
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Nishimura Y, Wada H, Mori A, Takatsuka H, Tamura A, Fujimori Y, Okamoto T, Takemoto Y, Kakishita E. Detection of ETV6/MDS1/Evi-1 chimeric transcripts in a patient with acute myelocytic leukemia and t(3;12)(q26;p13). Int J Hematol 2000; 72:108-9. [PMID: 10979219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Takemoto Y, Takatsuka H, Wada H, Mori A, Saheki K, Okada M, Tamura S, Fujimori Y, Okamoto T, Kakishita E, Kanamaru A. Evaluation of CMV/human herpes virus-6 positivity in bronchoalveolar lavage fluids as early detection of acute GVHD following BMT: evidence of a significant relationship. Bone Marrow Transplant 2000; 26:77-81. [PMID: 10918408 DOI: 10.1038/sj.bmt.1702459] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [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: 11/09/2022]
Abstract
We evaluated the relationship between CMV and human herpes virus-6 (HHV-6) reactivation and the incidence of grades 2 to 4 acute GVHD post BMT. Bronchoalveolar lavage fluid (BALF) samples extracted from 54 BMT recipients on post-BMT day 35 were analyzed by PCR for detection of CMV DNA, HHV-6 DNA and CMV plus HHV-6 DNA. CMV DNA was detected in 26 patients and 13 (50%) developed grades 2 to 4 acute GVHD. Of the 28 who were CMV negative, only six (21.4%) developed grades 2 to 4 acute GVHD. HHV-6 was detected in 18 patients, and 11 (61.1%) developed grades 2 to 4 acute GVHD. Of the 36 who were HHV-6 negative, only eight (22.2%) developed grades 2 to 4 acute GVHD. CMV and HHV-6 were detected in 13 patients, and eight (61.5%) developed grades 2 to 4 acute GVHD. Of the 23 who were negative for both CMV and HHV-6, only three (13%) developed grades 2 to 4 acute GVHD. In all experiments, the difference between the groups was significant (P<0.05, P<0.05 and P<0.01, respectively). We conclude that herpes virus infection, in particular CMV concurrent with HHV-6 reactivation, is predictive of moderate to severe acute GVHD.
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Affiliation(s)
- Y Takemoto
- Second Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
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Fujimori Y, Takatsuka H, Takemoto Y, Hara H, Okamura H, Nakanishi K, Kakishita E. Elevated interleukin (IL)-18 levels during acute graft-versus-host disease after allogeneic bone marrow transplantation. Br J Haematol 2000; 109:652-7. [PMID: 10886219 DOI: 10.1046/j.1365-2141.2000.02095.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.2] [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: 11/20/2022]
Abstract
Acute graft-versus-host disease (aGVHD) after allogeneic bone marrow transplantation (BMT) is mediated by grafted T lymphocytes after their polarization into type 1 T cells. Interleukin (IL)-18, a novel immunoregulatory cytokine, strongly stimulates type 1 T cells, therefore we postulated that IL-18 may be involved in the pathogenesis of aGVHD. Using an enzyme-linked immunosorbent assay (ELISA), we serially measured serum levels of IL-18 in 37 patients with haematological malignancy before and after allogeneic BMT. Patients with aGVHD had high levels of IL-18 that strongly correlated with the severity of aGVHD. We also found that they showed reduced serum levels of IL-18 after appropriate treatment or at a state of resolution. IL-18 levels were not affected by the pretransplant regimen, engraftment or bacterial infection. Compared with circulating interferon (IFN)-gamma or IL-12 levels, serum levels of IL-18 showed a more sensitive and specific correlation with the disease status of aGVHD. These findings suggest that IL-18 may play important roles in the pathogenesis of aGVHD and that measurement of serum IL-18 levels can be useful indicator of aGVHD.
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Affiliation(s)
- Y Fujimori
- Second Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan.
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Saheki K, Fujimori Y, Takemoto Y, Kakishita E. Increased expression of Fas (APO-1, CD95) on CD34+ haematopoietic progenitor cells after allogeneic bone marrow transplantation. Br J Haematol 2000; 109:447-52. [PMID: 10848840 DOI: 10.1046/j.1365-2141.2000.02022.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [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: 11/20/2022]
Abstract
Up-regulation of Fas/APO-1 (CD95) on haematopoietic progenitors and Fas-mediated apoptosis have been suggested to occur in a possible pathological mechanism in some bone marrow failure syndromes. We examined the expression of Fas antigen and susceptibility to Fas-mediated suppression of donor-derived haematopoietic cells of allogeneic bone marrow transplantation (BMT) recipients. Cytofluorometric analysis revealed low expression of Fas on CD34+ bone marrow cells from marrow donors or healthy controls. However, significantly higher expression of Fas antigen was observed on CD34+ bone marrow cells of BMT recipients, in whom engraftment of donor bone marrow (BM) cells was confirmed. The addition of an agonistic anti-Fas antibody (Ab) (CH-11) to haematopoietic stem cell culture of BM cells more strongly suppressed colony formation from granulocyte-macrophage colony-forming units (GM-CFU) and erythroid burst-forming units (BFU-E) after BMT. Pretreatment by blocking anti-Fas Ab (ZB4) abrogated the Fas-mediated GM-CFU and BFU-E suppression. Purified marrow CD34+ cells from BMT recipients were also susceptible to the Fas-mediated colony suppression. Thus, donor-derived CD34+ haematopoietic cells increased their expression of Fas antigen and were susceptible to Fas-mediated haematopoietic suppression. These findings provide new insight for understanding the haematological condition after BMT.
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Affiliation(s)
- K Saheki
- Second Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
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Yamada S, Takatsuka H, Takemoto Y, Okamoto T, Fujimori Y, Tamura S, Wada H, Okada M, Kanamaru A, Kakisita E. Association of cytomegalovirus interstitial pneumonitis with HLA-type following allogeneic bone marrow transplantation. Bone Marrow Transplant 2000; 25:861-5. [PMID: 10808207 DOI: 10.1038/sj.bmt.1702244] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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
Certain human leukocyte antigens may increase the risk of cytomegalovirus interstitial pneumonitis, an important complication of bone marrow transplantation. The prevalence of this pneumonitis was compared between patients possessing either HLA-B51 or HLA-B52 and patients without either antigen. The role of tumor necrosis factor-alpha in cytomegalovirus interstitial pneumonitis was also studied. Among 72 patients undergoing allogeneic bone marrow transplantation at our institution during the past 5 years, HLA-B51 or -B52 was detected in 29. Among these 29 patients, 13 (45%) developed cytomegalovirus interstitial pneumonitis, a significantly higher rate (P < 0.001) than among patients without these HLA types (4/43, 9%). In the pre-conditioning and stable phases, tumor necrosis factor-alpha levels were higher in patients with HLA-B51 or HLA-B52 than in patients without (P < 0.05; t-test). Throughout the period from pre-conditioning to around day 40, except on day 0, tumor necrosis factor-alpha levels were also significantly higher (P < 0.05 to P < 0.001) in patients developing cytomegalovirus infection than in those without it. These results suggest that HLA-B51 and HLA-B52 may be risk factors for cytomegalovirus interstitial pneumonitis after bone marrow transplantation, with an increase of tumor necrosis factor-alpha also being involved.
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Affiliation(s)
- S Yamada
- Second Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
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Takatsuka H, Takemoto Y, Okamoto T, Fujimori Y, Tamura S, Wada H, Okada M, Kanamaru A, Kakishita E. Changes in microbial flora in neutropenic patients with hematological disorders after the Hanshin-Awaji earthquake. Int J Hematol 2000; 71:273-7. [PMID: 10846835] [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: 02/16/2023]
Abstract
The earthquake that struck the Hanshin-Awaji district on January 17, 1995, was one of the most destructive to occur in Japan. We analyzed the changes in microorganisms isolated from patients with hematological disorders in relation to this earthquake. We reviewed a total of 4137 microbial cultures obtained over 1-year periods before and after the earthquake. There were 123 neutropenic patients admitted during the study period (54 before the earthquake and 69 afterwards). No significant differences in clinical characteristics and underlying diseases were found between the 2 groups. Polynomial analysis revealed a significant increase in the isolation of Candida albicans, Candida glabrata, and Pseudomonas aeruginosa from sputum and stool cultures after the earthquake. These microorganisms increased markedly in patients from severe earthquake-damaged areas. In neutropenic patients with hematological disorders, microbial isolates changed significantly after the Hanshin-Awaji earthquake. These changes may have been related to physical and emotional stress, as well as to the deterioration of environmental factors such as food, air, and water.
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Affiliation(s)
- H Takatsuka
- Second Department of Internal Medicine, Hyogo College of Medicine, Japan.
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Hanazaki K, Kajikawa S, Fujimori Y, Nakata S, Shimozawa N, Koide N, Adachi W, Amano J. Effects of prostaglandin E1 administration during hepatectomy for cirrhotic hepatocellular carcinoma. Hepatogastroenterology 2000; 47:461-4. [PMID: 10791213] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
BACKGROUND/AIMS Prostaglandin E1 has been used in hepatectomy based on a few limited clinical studies suggesting that PGE1 improves liver function. The aim of this study was to evaluate the effects of PGE1 administration during hepatectomy for cirrhotic hepatocellular carcinoma. METHODOLOGY Forty-three patients undergoing hepatectomy for cirrhotic hepatocellular carcinoma were divided into 2 groups: hepatectomy with Prostaglandin E1 treatment (PG group; n = 19) and without Prostaglandin E1 treatment (control group; n = 24). Prostaglandin E1 (0.02-0.07 microgram/kg/min) was administered intravenously from beginning to end of surgery in the PG group. RESULTS There were no significant differences between groups with respect to age, gender, preoperative liver and renal function, or intraoperative variables such as blood loss, weight of resected liver and total clamping time by the Pringle maneuver. No patient had severe postoperative complications. Initial postoperative maximum concentrations of serum total bilirubin, creatinine, and blood urea nitrogen in the PG group were significantly lower than those in the control group. CONCLUSIONS Prostaglandin E1 administration during hepatectomy for cirrhotic heptocellular carcinoma resulted in improved renal and hepatic function.
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Affiliation(s)
- K Hanazaki
- Second Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
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Morisaki I, Fukui N, Fujimori Y, Murakami J, Daikoku H, Amano A. Effects of combined oral treatments with cyclosporine A and nifedipine or diltiazem on drug-induced gingival overgrowth in rats. J Periodontol 2000; 71:438-43. [PMID: 10776932 DOI: 10.1902/jop.2000.71.3.438] [Citation(s) in RCA: 18] [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: 12/18/2022]
Abstract
BACKGROUND Cyclosporine A (CsA) and calcium channel blockers induce gingival overgrowth in humans and animals. Recently, nifedipine and diltiazem have often been used to control CsA-related hypertension in organ transplant patients. The purpose of this study was to examine the effects of a combined oral treatment of CsA and nifedipine or diltiazem on the severity of gingival overgrowth in rats. METHODS Fifteen-day-old Fischer rats were treated orally with single or combined applications of CsA, nifedipine, and/or diltiazem for 40 days; and induced gingival overgrowth, rat growth, and blood drug levels were compared among the different experimental groups. The experiment consisted of 6 groups: one control group (group A) and 5 test groups treated with CsA (group B), nifedipine (group C), and diltiazem (group D), as well as those concurrently treated with CsA and nifedipine (group E), and CsA and diltiazem (group F). Gingival overgrowth was determined by measuring the depth of the gingival sulcus. RESULTS The mandibular buccal gingival sulcus depth of group A was 365 +/- 41.2 microm. Among the test groups, the most remarkable gingival overgrowth was seen in group E (1,020 +/- 63.3 microm), followed by group F (895 +/- 43.8 microm), group B (870 +/- 48.3 microm), group C (525 +/- 116 microm), and then group D (505 +/- 83.2 microm). Rat body weight gain was reduced significantly by oral CsA treatment. Neither nifedipine nor diltiazem suppressed rat growth when used independently; however, rat growth reduced by CsA was further suppressed by a combined use of diltiazem, but not nifedipine. CsA blood levels were reduced by concurrent oral treatment with nifedipine or diltiazem along with the blood levels of those calcium channel blockers when treatment was in combination with CsA. CONCLUSIONS These results suggest that gingival overgrowth is induced in rats as a side effect of CsA, nifedipine, or diltiazem, and the combined use of these drugs influences rat growth, blood drug levels, and the severity of gingival overgrowth.
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Affiliation(s)
- I Morisaki
- Division of Special Care Dentistry, Osaka University Faculty of Dentistry, Japan.
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Iizuka I, Yamazaki Z, Fujimori Y, Takahama T, Kanai F, Wada T, Inoue N, Sonoda T, Nogi T, Kimura M. An evaluation of polymethylmethacrylate plasma separator by animal experiment. 1983. Ther Apher 2000; 4:54-7. [PMID: 10728505 DOI: 10.1046/j.1526-0968.2000.00242.x] [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: 04/14/2023]
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48
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Abe T, Sakurai T, Inagaki K, Kominami N, Yamazaki Z, Fujimori Y, Sanjo K, Kojima Y, Sugiura M, Wada T, Inoue N, Sakai T, Oda T. Efficient membrane and adsorbent for artificial liver support system. 1978. Ther Apher 2000; 4:26-8. [PMID: 10728499 DOI: 10.1046/j.1526-0968.2000.00235.x] [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: 11/20/2022]
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49
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Yamazaki Z, Fujimori Y, Sanjo K, Kojima Y, Sugiura M, Wada T, Inoue N, Sakai T, Oda T, Kominami N, Fujisaki U, Kataoka K. New artificial liver support system (plasma perfusion detoxification) for hepatic coma. 1978. Ther Apher 2000; 4:23-5. [PMID: 10728498 DOI: 10.1046/j.1526-0968.2000.00234.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Takatsuka H, Takemoto Y, Okamoto T, Fujimori Y, Tamura S, Wada H, Okada M, Kanamaru A, Kakishita E. Adult respiratory distress syndrome-like disorders after allogeneic bone marrow transplantation. Transplantation 1999; 68:1343-7. [PMID: 10573074 DOI: 10.1097/00007890-199911150-00021] [Citation(s) in RCA: 9] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Adult respiratory distress syndrome-like respiratory disorders are a serious, but uncommon, complication of bone marrow transplantation. METHODS We measured various cytokines in 2 patients with respiratory disorders and 11 patients without respiratory problems after allogeneic bone marrow transplantation. RESULTS The patients with respiratory disorders had elevated levels of interferon-gamma and interleukin-2 in the aplastic phase, and elevation of tumor necrosis factor-alpha, intercellular adhesion molecule-1, and interleukin-8 at the time of leukocyte recovery. Both patients with respiratory disorders developed fever during the aplastic phase, whereas none of the patients without fever had respiratory disorders. Among patients who had fever during the aplastic phase but no respiratory disorders, there was no elevation of cytokines from the aplastic phase to the recovery phase. CONCLUSIONS Respiratory disorders may occur after bone marrow transplantation when an inflammatory response during the aplastic phase stimulates cytokines that cause vascular endothelial damage and increases the levels of chemokines and adhesive molecules along with elevation of the leukocyte count.
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Affiliation(s)
- H Takatsuka
- Second Department of Internal Medicine, Hyogo College of Medicine, Japan.
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