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Etsuda H, Takase B, Uehata A, Kusano H, Hamabe A, Kuhara R, Akima T, Matsushima Y, Arakawa K, Satomura K, Kurita A, Ohsuzu F. Morning attenuation of endothelium-dependent, flow-mediated dilation in healthy young men: possible connection to morning peak of cardiac events? Clin Cardiol 2009; 22:417-21. [PMID: 10376182 PMCID: PMC6656222 DOI: 10.1002/clc.4960220610] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND AND HYPOTHESIS Brachial artery flow-mediated dilation (FMD), a noninvasive, widely used clinical index of endothelial function and magnitude of FMD, has been reported to be closely related to many coronary risk factors and coronary atherosclerosis. However, there has been no study that examines the diurnal change of FMD. We designed this study to reveal the diurnal variation of FMD in healthy volunteers. METHODS We examined FMD in response to reactive hyperemia by high resolution ultrasound in 13 healthy young men (age 25-32) at four different times over the course of a day. RESULTS Mean measures of brachial artery FMD was 4.0% at 8:00, 5.3% at 12:00, 9.7% at 17:00, and 6.9% at 21:00 hours. Flow-mediated dilation at 8:00 and at 12:00 hours was significantly lower than that at 17:00 (p < 0.05). CONCLUSIONS These results show that endothelial function has diurnal variation and is significantly attenuated in the morning. Morning attenuation of endothelial function should be recognized in clinical research and may play an important role in the circadian variation of the occurrence of acute cardiovascular events.
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Affiliation(s)
- H Etsuda
- National Defense Medical College, Saitama, Japan
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52
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Kukidome T, Shirai K, Kubo J, Matsushima Y, Yanagisawa O, Homma T, Aizawa K. MRI evaluation of body composition changes in wrestlers undergoing rapid weight loss. Br J Sports Med 2008; 42:814-8. [DOI: 10.1136/bjsm.2007.044081] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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53
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Tsuji K, Matsuda S, Matsushima Y, Yamada K, Yoshida H, Iseki T, Morita S. P.190 HPV, p16 and p53 in oral premalignant and malignant lesions. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)71978-4] [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: 10/21/2022] Open
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54
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Matsushima Y, Kino J. Intramolecular conjugate addition of γ- and δ-trichloroacetimidoyloxy-α,β-unsaturated esters in an acyclic system. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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55
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Furukawa T, Yamada J, Inoue K, Matsushima Y, Yanagawa Y, Fukuda A. The role of GABAA receptor-mediated actions of taurine in developing cerebral cortex. Neurosci Res 2007. [DOI: 10.1016/j.neures.2007.06.449] [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: 12/01/2022]
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56
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Matsushima Y, Kino J. An intramolecular conjugate addition of γ-trichloroacetimidoyloxy-α,β-unsaturated esters: a very concise route to daunosamine, acosamine, ristosamine and 3-epi-daunosamine precursors. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.09.164] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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57
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Toyonaga T, Matsushima M, Katori R, Takahashi T, Kiryu K, Sogawa N, Kanyama H, Matsumura N, Shimojima Y, Nozawa M, Hatakeyama T, Song J, Tanaka Y, Yanagita K, Suzuki K, Matsushima Y. Factors Affecting Recurrence after Surgical Excision for Perianal Warts. ACTA ACUST UNITED AC 2006. [DOI: 10.3862/jcoloproctology.59.259] [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: 12/16/2022]
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58
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Matsushima Y, Kino J. A new simple route to deoxyamino sugars from non-sugar material: synthesis of d-tolyposamine and 4-epi-d-tolyposamine and formal synthesis of d-vicenisamine. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.09.195] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [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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59
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Nariai T, Matsushima Y, Imae S, Tanaka Y, Ishii K, Senda M, Ohno K. Severe haemodynamic stress in selected subtypes of patients with moyamoya disease: a positron emission tomography study. J Neurol Neurosurg Psychiatry 2005; 76:663-9. [PMID: 15834024 PMCID: PMC1739646 DOI: 10.1136/jnnp.2003.025049] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.2] [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] [Indexed: 11/03/2022]
Abstract
BACKGROUND The optimum management of patients with moyamoya disease remains controversial. OBJECTIVES To examine retrospectively the correlation between the degree of haemodynamic stress and the clinical presentation by measuring cerebral haemodynamics and metabolism using positron emission tomography (PET). METHODS 57 patients with moyamoya disease (mean age 32 years, range 12 to 64), classified into five groups according to clinical manifestations, underwent PET measurement of cerebral blood flow (CBF), cerebral blood volume (CBV), cerebral metabolic rate for oxygen (CMR(O2)), and oxygen extraction fraction (OEF) using (15)O labelled gases. The regional values in patient groups were compared with a normal group. RESULTS CBF in non-symptomatic patients, patients presenting with transient ischaemic attacks (TIA), and patients with haemorrhagic onset (H) was not significantly lower than in normal controls in any region. CBV in the TIA group and in patients with infarction associated with TIA (I/TIA) was significantly higher than in the controls in most regions. OEF in the frontal, parietal, and temporal cortex was significantly higher in the I/TIA group than in the controls. Patients in the H group and those with a permanent deficit with infarction (PD group) had decreased metabolism with normal OEF. Multivariate analysis to test the distribution of the three dimensional vector (CBF, CBV, OEF) showed significant differences between every possible pair among the six groups except NS v H and H v PD in the frontal cortex. CONCLUSIONS The haemodynamic status of moyamoya disease is not uniform, and severe haemodynamic stress occurs in selected subgroups of patients.
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Affiliation(s)
- T Nariai
- Department of Neurosurgery, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan.
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60
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Sakaji I, Kasahara M, Ishida Y, Yoshikawa M, Nitta T, Matsushima Y, Iwatani Y, Yoshimoto A, Suzuki T. A case of plasma component exchange using membrane plasma separator EVACUREtm. Hemodial Int 2005. [DOI: 10.1111/j.1492-7535.2005.1121q.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: 11/28/2022]
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61
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Ishida Y, Kasahara M, Sakaji I, Yoshikawa M, Nitta T, Matsushima Y, Iwatani Y, Yoshimoto A, Suzuki T. Consideration of free coagulant hemodialysis within our facility. Hemodial Int 2005. [DOI: 10.1111/j.1492-7535.2005.1121p.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: 11/28/2022]
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62
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Fukuchi K, Date M, Matsushima Y, Iseki T, Ohura K, Morita S. 15-deoxy-Delta(12,14)-prostaglandin J(2), but not troglitazone, induces apoptosis in oral squamous carcinoma cells. Int J Oral Maxillofac Surg 2005. [DOI: 10.1016/s0901-5027(05)81492-4] [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: 11/27/2022]
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63
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Yoshimoto A, Matsushima Y, Sakaji I, Yoshikawa M, Nitta T, Okuno M, Ishida Y, Kasahara M, Suzuki T. Significance of Measurement for Colloid Osmotic Pressure during Hemodialysis. Hemodial Int 2004. [DOI: 10.1111/j.1492-7535.2004.0085aa.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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64
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Tachibana M, Watanabe J, Matsushima Y, Nishida K, Kobayashi Y, Fujimura M, Shiromizu K. Independence of the prognostic value of tumor suppressor protein expression in ovarian adenocarcinomas: A multivariate analysis of expression of p53, retinoblastoma, and related proteins. Int J Gynecol Cancer 2003; 13:598-606. [PMID: 14675342 DOI: 10.1046/j.1525-1438.2003.13391.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Accurate estimation of prognosis of ovarian cancer is difficult. For this report, in a group of 73 patients with ovarian adenocarcinomas, clinical factors and protein expression status of p53, retinoblastoma (Rb), and related proteins were evaluated for potential prognostic values. Clinical factors included FIGO stage, age, histopathologic type, and protein expression of p53, Rb, MDM2, p14ARF, p21WAF(1)/CIP(1) was determined by an immunohistochemical technique. Univariate Cox proportional hazard regression analysis was used to determine the significant prognostic value of FIGO stage (P < 0.0001), p53 status (0.0021), and patient age (P = 0.0255), and we report here, for the first time, the significant (P = 0.0072) prognostic value of Rb status. Histopathologic type and MDM2, p14ARF, p21WAF(1)/CIP(1) status did not show any prognostic value. To examine further the independence of prognostic values, we next applied multivariate analysis: We found that FIGO stage (P < 0.0001) and p53 status (P = 0.0108) were independent prognostic factors, while age and Rb status were not. Independence of prognostic value of p53 has heretofore been controversial, but we found a definite independent prognostic value for p53 status in ovarian adenocarcinomas. We also found that selection of appropriate antibodies for immunohistochemistry was essential to obtain significant results. We used five kinds of antibodies for p53 immunolocalization, and correlation with prognosis was obtained by three of these with different grades of statistical significance.
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Affiliation(s)
- M Tachibana
- Research Division, Departments of Pathology and Gynecology, Saitama Cancer Center, Saitama, Japan.
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65
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Ohana M, Okazaki K, Oshima C, Kawasaki K, Fukui T, Tamaki H, Matsuura M, Asada M, Nishi T, Uchida K, Uose S, Nakase H, Iwano M, Matsushima Y, Hiai H, Chiba T. Inhibitory effects of Helicobacter pylori infection on murine autoimmune gastritis. Gut 2003; 52:1102-10. [PMID: 12865266 PMCID: PMC1773742 DOI: 10.1136/gut.52.8.1102] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIM Long term Helicobacter pylori infection leads to atrophic gastritis but the relation between H pylori infection and autoimmune related atrophic gastritis (AIG) remains unclear. We studied the effects of H pylori infection on the pathophysiology of AIG in mice. MATERIALS AND METHODS BALB/c nu/nu mice (n=40) with or without H pylori infection received splenocytes from neonatally thymectomised mice to induce AIG. Half of the mice were orally infected with H pylori prior to AIG induction. Histological findings, and local and systemic immune responses were serially evaluated. RESULTS Two and six months after transfer, parietal cells in uninfected mice were depleted while those in infected mice were well preserved. The degree of gland atrophy (p<0.01), hyperplasia (p<0.01), gastric pH (p<0.05), and serum gastrin levels of infected mice were significantly lower than those of uninfected mice. Serum antiparietal cell antibody levels gradually decreased in infected mice, and were significantly lower than those of uninfected mice at six months (p<0.05). Real time polymerase chain reaction studies revealed significantly higher interleukin 4 (p<0.05) and transforming growth factor beta (p<0.05) gene expression in the gastric mucosa in infected mice than in uninfected mice at both two and six months after AIG induction. CONCLUSIONS H pylori infection inhibited the development of AIG in mice. Th2-type immune responses and transforming growth factor beta in the gastric microenvironment might be involved in the inhibitory effects of H pylori infection on the development of AIG, in which Th1-type responses have an important role.
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Affiliation(s)
- M Ohana
- Department of Gastroenterology and Endoscopic Medicine, Kyoto University, Sakyo, Kyoto, 606-8507 Japan
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66
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Tachibana M, Watanabe J, Matsushima Y, Nishida K, Kobayashi Y, Fujimura M, Shiromizu K. Independence of the prognostic value of tumor suppressor protein expression in ovarian adenocarcinomas: A multivariate analysis of expression of p53, retinoblastoma, and related proteins. Int J Gynecol Cancer 2003. [DOI: 10.1136/ijgc-00009577-200309000-00005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Accurate estimation of prognosis of ovarian cancer is difficult. For this report, in a group of 73 patients with ovarian adenocarcinomas, clinical factors and protein expression status of p53, retinoblastoma (Rb), and related proteins were evaluated for potential prognostic values. Clinical factors included FIGO stage, age, histopathologic type, and protein expression of p53, Rb, MDM2, p14ARF, p21WAF(1)/CIP(1) was determined by an immunohistochemical technique. Univariate Cox proportional hazard regression analysis was used to determine the significant prognostic value of FIGO stage (P < 0.0001), p53 status (0.0021), and patient age (P = 0.0255), and we report here, for the first time, the significant (P = 0.0072) prognostic value of Rb status. Histopathologic type and MDM2, p14ARF, p21WAF(1)/CIP(1) status did not show any prognostic value. To examine further the independence of prognostic values, we next applied multivariate analysis: We found that FIGO stage (P < 0.0001) and p53 status (P = 0.0108) were independent prognostic factors, while age and Rb status were not. Independence of prognostic value of p53 has heretofore been controversial, but we found a definite independent prognostic value for p53 status in ovarian adenocarcinomas. We also found that selection of appropriate antibodies for immunohistochemistry was essential to obtain significant results. We used five kinds of antibodies for p53 immunolocalization, and correlation with prognosis was obtained by three of these with different grades of statistical significance.
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67
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Eguchi T, Kobayashi K, Uekusa H, Ohashi Y, Mizoue K, Matsushima Y, Kakinuma K. Stereostructure of a novel cytotoxic 18-membered macrolactone antibiotic FD-891. Org Lett 2002; 4:3383-6. [PMID: 12323024 DOI: 10.1021/ol026518k] [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: 11/28/2022]
Abstract
The absolute stereochemistry of FD-891, a novel cytotoxic 18-membered macrolactone antibiotic, was determined by a synthetic approach as well as X-ray diffraction of degradative derivatives. The absolute configuration of FD-891 turned out to be as shown above. The stable conformer of FD-891 was also discussed with respect to biological activity by comparison with the structurally related concanamycin A on the bases of molecular mechanics calculations. [structure: see text]
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Affiliation(s)
- Tadashi Eguchi
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan.
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68
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Matsushima Y, Sakurai T, Ohoka A, Ohnuki T, Tada N, Asoh Y, Tachibana M. Four strains of spontaneously hyperlipidemic (SHL) mice: phenotypic distinctions determined by genetic backgrounds. J Atheroscler Thromb 2002; 8:71-9. [PMID: 11866033 DOI: 10.5551/jat1994.8.71] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [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: 11/11/2022] Open
Abstract
Spontaneously hyperlipidemic (SHL) mice are Japanese wild mice (KOR) with disruption of the apolipoprotein E (Apo E) gene. These mice (KOR-Apoe(shl)) are superhypercholesterolemic and develop severe xanthoma, but their atherosclerosis is relatively mild compared with Apo E knockout mice. First, we tested whether this distinction is due to additional mutation of the Apoc1 and/or Apoc2 genes in KOR-Apoe(shl). Southern blot analysis, but found no gross disruption of these genes. Next, we tested whether the phenotypic distinction is due to differences in the genetic background. To this end, we established three lines of congenic SHL mice with a genetic background of C57BL/6, BALB/c or C3H/He, and named them, respectively, C57BL/6.KOR-Apoe(shl) (B6.KOR-Apoe(shl)), BALB/c.KOR-Apoe(shl) (C.KOR-Apoe(shl)) and C3H/He.KOR-Apoe(shl) (C3.KOR-Apoe(shl)). Hypercholesterolemia was most severe in KOR-Apoe(shl) followed the by others as follows; KOR-Apoe(shl)>>C3.KOR-Apoe(shl)>C.KOR-Apoe(shl)>B6.KOR-Apoe(shl). In contrast, atherosclerosis was most severe in B6.KOR Apoe(shl) followed by the others: B6.KOR-Apoe(shl)>C.KOR-Apoe(shl)>>C3.KOR-Apoe(shl)> or =KOR-Apoe(shl). This order, however, did not match that in xanthoma, which was highly prominent in KOR-Apoe(shl) but mild in B6.KOR-Apoe(shl), C.KOR-Apoe(shl) and C3.KORApoe(shl). This order, however, did not match that in xanthoma, which was highly prominant in KOR-Apoe(shl) but mild in B6.KOR-Apoe(shl), C.KOR-Apoe(shl) and C3.KOR-Apoe(shl). These distinctions suggest that the severity of each of the phenotypes is determined by distinct genetic backgrounds which probably are composed of polymorphism of lipid metabolism-related proteins. We found that apolipoprotein A-I is decreased in each SHL strain and polymorphic between B6.KOR-Apoe(shl) and the other strains examined. This polymorphism may be related to the most severe atherosclerosis observed in B6.KOR-Apoe(shl). It is most likely that combination of such polymorphisms is due to the genetic background accountable for phenotype distinctions.
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Affiliation(s)
- Y Matsushima
- Research Institute, Saitama Cancer Center, Ina, Japan.
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69
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Ishizawa N, du Boulay DJ, Matsushima Y, Tabira Y, Hester JR, Ikuta H, Wakihara M. Electron density distribution in magnesium-stabilised cubic lithium manganate spinel. Acta Crystallogr A 2002. [DOI: 10.1107/s0108767302098665] [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: 11/10/2022] Open
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70
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Matsushima Y, Itoh H, Nakayama T, Horiuchi S, Eguchi T, Kakinuma K. Enantioselective total synthesis of vicenistatin, a novel 20-membered macrocyclic lactam antitumor antibiotic. ACTA ACUST UNITED AC 2002. [DOI: 10.1039/b111146a] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
Postpolio syndrome (PPS) is generally defined as a clinical syndrome of new weakness, fatigue, and pain in individuals who have previously recovered from acute paralytic poliomyelitis. These new problems may lead to loss of employment as well as new deficits in instrumental activities in daily living (cleaning, washing, shopping, transportation, etc.), walking, climbing stairs, and personal assistance. We presented three cases of PPS with working disabilities in Japan, and stated the issues confronted with. Particularly at the workplace, PPS individuals need special supports from both rehabilitation medicine and occupational health services, including improved nutrition, achieving ideal body weight, regular and sensible exercise, frequent checkups, and modifying working conditions.
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Affiliation(s)
- S Saeki
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, 1-1, Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
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Abstract
We investigated the outcome after patients with traumatic brain injury (TBI) were treated in our hospital. Subjects were 51 patients with TBI (43 men, 8 women; mean age 34.9 +/- 20.3 yr), who had been admitted to the department of rehabilitation in our hospital between 1980 and 2000. Data were collected retrospectively from the medical records. Most injuries were due to motor vehicle accidents. The percentage of patients who suffered impaired cognitive and behavioral functions was 86.3%. The percentage of patients who were discharged to their homes was 70.6%, but none of them could return to work. Patients who were severely disabled in their daily activities or had cognitive and behavioral disturbances were difficult to discharge. We need to establish a comprehensive rehabilitation approach to cognitive and behavioral disturbances for patients with TBI.
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Affiliation(s)
- Y Matsushima
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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73
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Nishi N, Nanto S, Shimai S, Matsushima Y, Otake K, Ando A, Yamasaki K, Soga S, Tatara K. Effects of hostility and lifestyle on coronary heart disease among middle-aged urban Japanese. J Epidemiol 2001; 11:243-8. [PMID: 11769941 DOI: 10.2188/jea.11.243] [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: 11/18/2022] Open
Abstract
OBJECTIVE To explore the association between multi-dimensional aspects of hostility and coronary heart disease among middle-aged urban Japanese. SUBJECTS AND METHODS We conducted a case-control study. Cases were consecutive patients with acute coronary syndrome admitted to a hospital in Japan. Fifty-three patients (45 men and 8 women) aged 35 to 65 were enrolled. For each case, two sex and age (+/-2 years) matched controls were recruited from among participants in a health check-up program at a health promotion center located in the same area as the hospital. Two questionnaires, both with four components, were used to measure hostility and coping with anger: the one was for anger, hostility, physical aggression and verbal aggression, and the other for aggression, social inhibition, guilt, and controlled affect. RESULTS The scores of all components from two questionnaires were higher for cases than controls, but the differences were not significant. Multivariate analysis showed that anger, fat intake, alcohol consumption and house size were significantly associated with the etiology of acute coronary syndrome. CONCLUSION Anger, lifestyle, and socioeconomic status play important roles for the etiology of coronary heart disease in middle-aged urban Japanese.
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Affiliation(s)
- N Nishi
- Takarazuka City Health Promotion Center, Takarazuka, Hyogo, Japan
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74
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Matsunaga M, Matsushima Y, Ohtani H, Tsuge S. Optimization of conditions for detailed compositional analysis of acrylic oligomers by supercritical fluid chromatography with temperature programming or modifier gradient technique. ANAL SCI 2001; 17:1295-9. [PMID: 11759512 DOI: 10.2116/analsci.17.1295] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Acrylic oligomers such as pentaerythritolacrylates (PEA), which are often utilized in the field of functionalized materials, generally consist of very complex homologous series. In this work, measuring conditions for packed-column supercritical fluid chromatographic separation of a complex PEA sample manufactured industrially were systematically examined using temperature programming or modifier gradient technique. Under the conditions thus optimized, not only the main components, PEA homologues containing different number of acryloyl groups, but also trace constituents such as their by-products formed through Michael addition reactions were favorably resolved on the resulting chromatograms. The fact that the coefficient of variation (CV) for relative intensity of each peak was approximately 3-6% even for the minor components suggested that detailed compositional analysis of PEAs could be performed precisely by the proposed method.
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Affiliation(s)
- M Matsunaga
- Toagosei Co., Ltd., Nagoya Research & Development Institute, 1-1 Funami-cho, Minato, Nagoya 455-0027, Japan
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75
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Uchida K, Okazaki K, Debrecceni A, Nishi T, Iwano H, Inai M, Uose S, Nakase H, Ohana M, Oshima C, Matsushima Y, Kawanami C, Hiai H, Masuda T, Chiba T. Analysis of cytokines in the early development of gastric secondary lymphoid follicles in Helicobacter pylori-infected BALB/c mice with neonatal thymectomy. Infect Immun 2001; 69:6749-54. [PMID: 11598047 PMCID: PMC100052 DOI: 10.1128/iai.69.11.6749-6754.2001] [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: 12/25/2022] Open
Abstract
Immunological interaction between the host and Helicobacter pylori seems to play a critical role in follicular formation in gastric mucosa. We reported H. pylori-induced follicular gastritis model using neonatally thymectomized mice. In this study, we investigated the involvement of various cytokines in this model. BALB/c mice were thymectomized on the third day after birth (nTx). At 6 weeks old, these mice were orally infected with H. pylori. Histological studies showed that follicular formation occurred from 8 weeks after the infection and that most of the infiltrating lymphocytes were CD4(+) and B cells. Neutrophils increased transiently at 1 week after the infection. Gamma interferon, interleukin-7 (IL-7), and IL-7 receptor were expressed in the stomach of the nTx mice irrespective of the infection. In contrast, expressions of the tumor necrosis factor alpha, IL-4 and lymphotoxin-alpha genes were remarkably upregulated by the infection. Our findings suggest that follicular formation may require cooperative involvement of a Th2-type immune response, tumor necrosis factor alpha and lymphotoxin-alpha in addition to the Th1-type immune response in H. pylori-induced gastritis in nTx mice.
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Affiliation(s)
- K Uchida
- Department of Gastroenterology and Endoscopic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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76
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Matsushima Y, Onitsuka K, Kondo T, Mitsudo T, Takahashi S. Asymmetric catalysis of planar-chiral cyclopentadienylruthenium complexes in allylic amination and alkylation. J Am Chem Soc 2001; 123:10405-6. [PMID: 11603999 DOI: 10.1021/ja016334l] [Citation(s) in RCA: 158] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Y Matsushima
- The Institute of Scientific and Industrial Research Osaka University, Ibaraki, Osaka 567-0047, Japan
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77
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Hachisuka K, Matsushima Y, Ohmine S, Shitama H, Shinkoda K. Moisture permeability of the total surface bearing prosthetic socket with a silicone liner: is it superior to the patella-tendon bearing prosthetic socket? J UOEH 2001; 23:225-32. [PMID: 11570046 DOI: 10.7888/juoeh.23.225] [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: 11/21/2022]
Abstract
The purpose of this study was to examine the moisture permeability properties of materials used for total surface bearing (TSB) socket with a silicone liner, a combination of Silicone Suction Socket or Icelandic Roll-On Silicone Socket (ICEROSS) and an acrylic plastic sheet (Degaplast), patella-tendon bearing (PTB) socket, a combination of Pe-Lite and Degaplast, and wooden socket made of poplar. Moisture permeability of the socket materials was measured as the diminution of water in a container after 12 hours in a climatic chamber. Eight containers with their open, top side were uncovered (no material) or sealed with one of the socket materials; the experiment was repeated four times. One-way analysis of variance followed by Bonferroni's test was applied to examine the differences in moisture permeability. Moisture permeability levels were as follows: no material, 85.9 +/- 1.3 g; poplar, 4.3 +/- 0.4 g; Silicone Suction Socket, 1.1 +/- 0.2 g; ICEROSS, 1.0 +/- 0.2 g; Pe-Lite, 0.8 +/- 0.1 g; 3S + Degaplast, 0.8 +/- 0.1 g; ICEROSS + Degaplast, 0.8 +/- 0.2 g; and Pe-Lite + Degaplast, 0.8 +/- 0.1 g. There were significant differences between the uncovered container and the others, and between poplar and the others (P < 0.05). We concluded that the TSB socket with a silicone liner is not superior to the PTB socket with regard to moisture permeability, and that it is necessary to develop a new prosthetic socket that allows heat release and drainage of sweat.
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Affiliation(s)
- K Hachisuka
- Department of Rehabilitation Medicine, School of Medicine, University Hospital, University of Occupational and Environmental Health, Japan. Yahatanishi-ku, Kitakyushu 807-8555, Japan
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78
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Abstract
BACKGROUND AND PURPOSE High-resolution turbo MR angiography with zero-filling interpolation (ZFI) technique is a new vascular imaging method with reduced scan time. The purpose of the present study was to evaluate high-resolution turbo MR angiography for the diagnosis and assessment of moyamoya disease. METHODS Forty-six patients suspected of having moyamoya disease were examined with high-resolution turbo MR angiography with the ZFI technique, MRI, and conventional angiography. Moyamoya disease was diagnosed in 42 of these patients. Blind, separate interpretation of the images was performed. RESULTS High-resolution turbo MR angiography and MRI accurately evaluated 349 (95%) and 325 (88%) of 368 arteries, respectively, but the degree of stenosis was overestimated in the other arteries. MR angiography and MRI depicted basal cerebral moyamoya vessels in 82 (98%) and 82 (98%) of 84 hemispheres, respectively. MR angiography also depicted leptomeningeal and transdural collateral vessels in 51 (100%) of 51 hemispheres and in 38 (88%) of 43 hemispheres, respectively. The sensitivity and specificity of high-resolution turbo MR angiography for the diagnosis of moyamoya disease were 98% and 100%, respectively. CONCLUSIONS High-resolution turbo MR angiography in reduced scan time is highly accurate in the assessment of both steno-occlusive lesions and collateral vessels in moyamoya disease, thus providing a highly accurate (98%) diagnosis and assessment of moyamoya disease.
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Affiliation(s)
- I Yamada
- Department of Radiology, Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
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79
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Ohana M, Okazaki K, Oshima C, Andra's D, Nishi T, Uchida K, Uose S, Nakase H, Matsushima Y, Chiba T. A critical role for IL-7R signaling in the development of Helicobacter felis-induced gastritis in mice. Gastroenterology 2001; 121:329-36. [PMID: 11487542 DOI: 10.1053/gast.2001.26289] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND & AIMS Interleukin (IL)-7 is a critical cytokine in the development of T and B cells and is involved in gastrointestinal pathophysiology. The aim of this study was to investigate the involvement of IL-7 receptor (IL-7R) signaling in Helicobacter-induced gastritis. METHODS C57BL/6 mice (n = 40) were inoculated with H. felis. Twenty mice were injected intraperitoneally with neutralizing IL-7R antibody (A7R34) every seventh day for 3 months. Histology, serum anti-H. felis antibody, and gene expression of IL-7, IL-7R, and proinflammatory cytokines in the gastric mucosa were evaluated. RESULTS Seventeen of 20 (85%) infected mice without A7R34 developed severe atrophic gastritis, whereas there was no gastritis in A7R34-treated infected mice. There was no difference in the serum levels of anti-H. felis antibody between the 2 groups. IL-7, IL-7R, IL-1alpha, tumor necrosis factor alpha, and interferon gamma messenger RNA expressions were up-regulated in control infected mice, whereas only IL-7 messenger RNA was up-regulated in A7R34-treated infected mice. Immunohistochemistry indicated positive cytoplasmic staining of IL-7 in the gastric epithelial cells. CONCLUSIONS These data suggest a critical role for IL-7 receptor signaling in the development of Helicobacter-induced gastritis in mice.
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Affiliation(s)
- M Ohana
- Department of Gastroenterology and Endoscopic Medicine, Faculty of Medicine, Kyoto University, 54 Shogoin-Kawara-cho, Sakyo, Kyoto, 606-8507 Japan
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80
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Sekita K, Umemura T, Saito M, Ogawa Y, Ueno K, Kaneko T, Uchida O, Matsushima Y, Kawasaki Y, Kurokawa Y, Inoue T. [Fukuronori (Gloiopeltis furcata) extract: 90-day dietary toxicity study in F344 rats]. Shokuhin Eiseigaku Zasshi 2001; 42:96-101. [PMID: 11486390 DOI: 10.3358/shokueishi.42.96] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Fukuronori extract (FE), which is mainly composed of polysaccharides, and is an extract of the seaweed Gloiopeltis furcata, is permitted for use as a food thickening agent by the Ministry of Health and Welfare, Japan. In order to study the subchronic toxicity of FE, F344 rats of both genders were administered FE at concentrations of 0% (basal diet, control group), 0.5%, 1.5% and 5.0% in basal powder diet for 90 days, and observation of general condition, recording of body weight and food consumption, examination of hematology and blood chemistry, measurement of organ weight, and pathological examination were performed. Food consumption tended to increase in both sexes given FE at 1.5% and 5.0% throughout most of the experimental period. This was, however, considered not to be a toxic effect because the differences in body weight were small. Total cholesterol and triglycerides in serum decreased significantly (p < 0.05) and not significantly, respectively, in males of the 5.0% group. These changes were considered to be related to the intake of FE, but the differences were slight and within physiological ranges. Hematological and pathological examination revealed neither any particular adverse effect nor any significant difference from the control. Hence, dietary intake of 5.0% of FE, 3,362 mg/kg/day for males and 3,594 mg/kg/day for females as mean daily intake, for 90 days was considered to be a no observable adverse effect level in rats.
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Affiliation(s)
- K Sekita
- National Institute of Health Sciences: 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
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81
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Kanazawa H, Matsushima Y, Okano T. Temperature-responsive chromatography. Adv Chromatogr 2001; 41:311-36. [PMID: 11263070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
- H Kanazawa
- Kyoritsu College of Pharmacy, Tokyo, Japan
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82
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Watanabe T, Matsushima Y, Nakase H, Iwano M, Hosotani R, Imamura M, Kinoshita Y, Chiba T. Effects of Helicobacter pylori infection on Zollinger-Ellison syndrome. J Gastroenterol 2001; 35:735-41. [PMID: 11063216 DOI: 10.1007/s005350070031] [Citation(s) in RCA: 8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Both Zollinger-Ellison syndrome (ZES) and Helicobacter pylori infection are major etiologic factors for peptic ulcer. The aim of this study was to investigate the effect of H. pylori infection on ZES with special reference to acid secretion. Sixteen patients with ZES were selected (median age, 59 years; range, 39-66 years; M/F, 9/7), and H. pylori status, ulcer location, gastric acid secretion, serum pepsinogen (PG) I and II concentrations, and PG I/II ratio were determined. The seroprevalence of H. pylori infection was 50%, whereas active H. pylori infection was seen in only 25% of the patients. Thirteen patients had duodenal ulcer (DU), 1 had gastric ulcer (GU), and 2 had both GU and DU. DU was seen in both H. pylori-positive and H. pylori-negative patients, whereas GU was found only in H. pylori-positive patients. Both basal and maximal acid outputs were significantly lower in H. pylori-positive patients than in H. pylori-negative patients (P< 0.05). Moreover, both serum PG I and the PG I/II ratio were significantly lower in H. pylori-positive patients than in H. pylori-negative patients. These results indicate that ZES is an independent risk factor for DU, but H. pylori infection may play some role in the development of GU in ZES. In patients with ZES, H. pylori infection may reduce both hypersecretion from parietal cells and PG I secretion from chief cells, and hyperacidity of the stomach in ZES may have eradicated H. pylori in some patients.
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Affiliation(s)
- T Watanabe
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Japan
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83
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Hama A, Furune S, Nomura K, Takada Y, Matsushima Y. [A case of unilateral moyamoya disease presenting with hemichorea]. No To Hattatsu 2001; 33:166-71. [PMID: 11260920] [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: 02/19/2023]
Abstract
We reported a 12-year-old boy with unilateral moyamoya disease whose initial and predominant manifestation was hemichorea. Neurological examinations revealed chorea in his left upper extremity and muscle hypotonia in his left upper and lower extremities. Cranial MRI showed moyamoya vessels only in the right basal ganglia and infarction in the white matter of the right frontal lobe. Right carotid angiography revealed stenosis in the distal part of internal carotid artery, and in the proximal part of anterior and middle cerebral arteries with moyamoya vessels. Left carotid angiography showed normal findings. He was diagnosed as a suspected case of moyamoya disease (unilateral moyamoya disease) according to the diagnostic criteria proposed by the Research Committee on Moyamoya Disease of the Ministry of Health and Welfare of Japan. His chorea responded to haloperidol but encephalo-duro-arterio-synangiosis on the right side improved all symptoms. Chorea occurs in some patients with moyamoya disease. Hypofunction of the striatal indirect pathway is suggested as the cause of chorea. In this case an ischemic lesion in the right striatum may have caused hypofunction of the pathway and developed chorea and hypotonia.
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Affiliation(s)
- A Hama
- Department of Pediatric Neurology, Japanese Red Cross Nagoya First Hospital, Nagoya
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84
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Goto A, Matsushima Y, Kadowaki T, Kitagawa Y. Drosophila mitochondrial transcription factor A (d-TFAM) is dispensable for the transcription of mitochondrial DNA in Kc167 cells. Biochem J 2001; 354:243-8. [PMID: 11171100 PMCID: PMC1221649 DOI: 10.1042/0264-6021:3540243] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We have cloned cDNA encoding Drosophila mitochondrial (mt) transcription factor A (d-TFAM). RNA interference (RNAi) of d-TFAM by lipofection of haemocyte-derived Kc167 cells with double-stranded RNA reduced d-TFAM to less than 5% of the normal level. Reflecting the ability of TFAM to stabilize mtDNA, RNAi of d-TFAM reduced mtDNA to 40%. Nonetheless, transcription of the ND2 and ND5 genes and their mRNAs remained unchanged for 8 days of the duration of RNAi. We thus show that d-TFAM is not essential for the transcription of Drosophila mtDNA.
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Affiliation(s)
- A Goto
- Graduate Course for Regulation of Biological Signals, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya-shi 464-8601, Japan
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85
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Inagaki H, Hayashi T, Matsushima Y, Lin KH, Maeda S, Ichihara S, Kitagawa Y, Saito T. Isolation of rat mitochondrial transcription factor A (r-Tfam) cDNA. DNA Seq 2001; 11:131-5. [PMID: 10902920 DOI: 10.3109/10425170009033980] [Citation(s) in RCA: 23] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We have isolated rat mitochondrial transcription factor A (Tfam; formerly known as mtTFA) cDNA clones from a rat cerebellum cDNA library using human Tfam cDNA as a probe. The deduced amino acid sequence of r-Tfam shows 62% and 89% overall identity to human and mouse Tfam, respectively. We also show the presence of two r-Tfam isoforms in testis as for mouse. Our findings suggest that the mechanisms underlying transcription of mitochondrial genes are conserved among rat, mouse, and human.
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Affiliation(s)
- H Inagaki
- Department of Chemistry, National Industrial Research Institute of Nagoya, Japan.
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86
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Kakinuma K, Dekishima Y, Matsushima Y, Eguchi T, Misawa N, Takagi M, Kuzuyama T, Seto H. New approach to multiply deuterated isoprenoids using triply engineered Escherichia coli and its potential as a tool for mechanistic enzymology. J Am Chem Soc 2001; 123:1238-9. [PMID: 11456682 DOI: 10.1021/ja003390y] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K Kakinuma
- Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan.
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87
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Suzuki T, Kinoshita Y, Tachibana M, Matsushima Y, Kobayashi Y, Adachi W, Sotozono C, Kinoshita S. Expression of sex steroid hormone receptors in human cornea. Curr Eye Res 2001; 22:28-33. [PMID: 11402376 DOI: 10.1076/ceyr.22.1.28.6980] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.0] [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: 11/03/2022]
Abstract
PURPOSE Previously we reported the occurrence of estrogen receptor alpha (ER beta), estrogen receptor beta (ER beta) and androgen receptor (AR) in mouse corneas. The present study was designed to investigate the occurrence of various sex steroid hormone receptors, including ER alpha, progesterone receptor (PR) and AR, in human corneas. METHODS We used reverse transcription-polymerase chain reaction (RT-PCR) to look for sex hormone receptor mRNAs (ER alpha, PR and AR) in human corneal epithelial cells obtained at autopsy. Next, using an immunocytochemical technique, we localized these receptors in donor human corneas. RESULTS mRNAs encoding all receptors tested for were found in corneal epithelial cells obtained from male and female donor eyes. Immunocytochemical examination revealed that the receptors were located in the nuclei of corneal epithelial, stromal, and endothelial cells. CONCLUSIONS Since receptors for both male and female sex hormones are present in human corneas of both genders, we postulate that the receptors may influence the biological functions of corneal cells through direct interaction with specific hormones.
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Affiliation(s)
- T Suzuki
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Japan.
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88
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Matsushima Y, Nakayama T, Tohyama S, Eguchi T, Kakinuma K. Versatile route to 2,6-dideoxyamino sugars from non-sugar materials: Syntheses of vicenisamine and kedarosamine. ACTA ACUST UNITED AC 2001. [DOI: 10.1039/b008878l] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Debreceni A, Okazaki K, Matsushima Y, Ohana M, Nakase H, Uchida K, Uose S, Chiba T. mRNA expression of cytokines and chemokines in the normal gastric surface mucous epithelial cell line GSM06 during bacterial infection with Helicobacter felis. J Physiol Paris 2001; 95:461-7. [PMID: 11595476 DOI: 10.1016/s0928-4257(01)00064-x] [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] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND AND AIM A group of the proinflammatory and chemotactic cytokines (chemokines) has been considered as an important factor in the pathomechanism of different bacterial diseases, among them the common Helicobacter pylori infection. Experimental results obtained with gastric biopsy samples of H. pylori positive patients, and with H. pylori infected tumor originated gastric cell lines indicated that these cytokines have essential roles in the development and maintenance of the immune response and inflammation of the gastric mucosa during H. pylori infection. Although the mRNA expression was shown in these biopsy samples and cell lines, it is not yet proved that the normal gastric mucosal epithelial cells themselves express these cytokines. The establishment of a gastric surface mucous cell line with non-tumor origin (GSM06), and the usage of Helicobacter felis as a model of the classic H. pylori infection gave us the possibility to check this question. MATERIALS AND METHODS in this study GSM06 cells were infected with different numbers (10(5), 10(6), 10(7), 10(8), 10(9) bacterium/ml medium) of H. felis for two different time periods (2, 4 h). Cells treated with medium only were used as control. Then the mRNA expression of the following cytokines was measured by RT-PCR method in the GSM06 cells: proinflammatory cytokine IL1-beta, and chemokine RANTES, eotaxin, MCP-1, MIP1-alpha and MIP1-beta. RESULTS we found that neither mRNA of the investigated cytokines was expressed constitutively, however the GSM06 cells expressed the mRNA of each cytokine during H. felis infection. CONCLUSION our results prove that normal gastric surface mucous epithelial cells express immunologically active peptides during H. felis infection. We may suppose that the epithelial cells of the gastric mucosa contribute to the immune response and inflammation by expressing proinflammatory (IL1-beta) and chemotactic (RANTES, eotaxin, MCP-1, MIP1-alpha and beta) cytokines during H. pylori infection in human.
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Affiliation(s)
- A Debreceni
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kyoto University, Shogoin-Kawaharamachi, Sakyo-ku, 606 Kyoto, Japan.
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Matsushima Y, Nakayama T, Fujita M, Bhandari R, Eguchi T, Shindo K, Kakinuma K. Isolation and Structure Elucidation of Vicenistatin M, and Importance of the Vicenisamine Aminosugar for Exerting Cytotoxicity of Vicenistatin. J Antibiot (Tokyo) 2001; 54:211-9. [PMID: 11372778 DOI: 10.7164/antibiotics.54.211] [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: 11/21/2022]
Abstract
A new analogue of vicenistatin was isolated from the producing strain Streptomyces sp. HC-34. A characteristic of the elucidated structure involved the existence of a neutral sugar mycarose instead of an aminosugar vicenisamine of vicenistatin. The absolute stereochemistry of the new analogue (named as vicenistatin M) was determined by the synthesis of D-mycarose and of vicenistatin M itself. Biological testing of vicenistatin M suggested the importance of vicenisamine for exerting the cytotoxicity of vicenistatin.
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Affiliation(s)
- Y Matsushima
- Department of Chemistry, Tokyo Institute of Technology, Japan
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91
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Nagata Y, Nishio T, Matsumoto S, Kanazawa H, Mochizuki M, Matsushima Y. Reaction of 2,2,5,7,8-pentamethyl-6-chromanol, an alpha-tocopherol analogue, with NO in the presence of oxygen. Bioorg Med Chem Lett 2000; 10:2709-12. [PMID: 11133074 DOI: 10.1016/s0960-894x(00)00563-1] [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: 11/16/2022]
Abstract
An alpha-tocopherol model compound, 2,2,5,7,8-pentamethyl-6-chromanol, reacted with nitric oxide (NO) in the presence of various amounts of oxygen to afford four major products. Distribution of the products was varied depending on the ratio of NO and O2, and the preincubation time of NO and O2.
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Affiliation(s)
- Y Nagata
- Kyoritsu College of Pharmacy, Tokyo, Japan
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92
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Kanazawa H, Sunamoto T, Matsushima Y, Kikuchi A, Okano T. Temperature-responsive chromatographic separation of amino acid phenylthiohydantions using aqueous media as the mobile phase. Anal Chem 2000; 72:5961-6. [PMID: 11140763 DOI: 10.1021/ac0004658] [Citation(s) in RCA: 137] [Impact Index Per Article: 5.7] [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: 11/30/2022]
Abstract
Recently, green chemistry has become one of the most important subjects of science for environmental pollution prevention. Here, we report development of a novel chromatographic technology for phenylthiohydantoin (PTH)-amino acid analyses in which only aqueous solution is used as the mobile phase. We have devised HPLC adsorbents (stationary phase) by modifying the surfaces of microparticulate silica gel using functional polymers. The thermoresponsive copolymer, poly(N-isopropylacrylamide-co-n-butyl methacrylate) (IBc) was used to modify the silica stationary phase surfaces. This polymer-grafted surface exhibits temperature-regulated hydrophilic/hydrophobic property changes in water. PTH-amino acid interactions with this surface are readily modulated by changing the column temperature using an isocratic aqueous mobile phase. Increasing hydrophobic interactions between more hydrophobic PTH-amino acids with hydrophobized polymer-grafted surfaces at elevated mobile phase temperatures is used for the effective separation of PTH-amino acids in aqueous solution. This study is aimed at the development of novel separation processes, which are also environmentally benign, for use with biochemical substances in order to meet the growing needs of the life sciences and biotechnology. The method is useful for various separations in life science so that proteins can maintain their biological activity and enzymes, their enzymatic activity.
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Affiliation(s)
- H Kanazawa
- Kyoritsu College of Pharmacy, Minato, Tokyo, Japan.
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93
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Teramoto Y, Uga S, Matsushima Y, Shimizu K, Morita T, Shirakawa S. Morphological study on rupture of posterior capsule in RLC mouse lens. Graefes Arch Clin Exp Ophthalmol 2000; 238:970-8. [PMID: 11196360 DOI: 10.1007/s004170000190] [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: 11/30/2022] Open
Abstract
PURPOSE To clarify the causative factor underlying rupture of the posterior capsule of the RLC mouse lens as a recessive trait around the 50th postnatal day. METHODS The lenses of the RLC mouse were removed in the period from birth to 50th postnatal day. Some specimens were observed by light microscopy and transmission and scanning electron microscopy. Others were examined as flat preparations of the lens epithelium. RESULTS There was an abnormal arrangement of lens fibers at the newborn stage, and lens fibers of the perinuclear zone ended almost vertical in relation to the posterior capsule. Consequently, the posterior suture was not formed in this mouse lens. On the 10th postnatal day, the ends of the lens fibers that terminated in the posterior capsule became swollen, and the posterior capsule at the posterior polar region became thin. On the 20th day, the area of swollen fibers was so large at the center of the posterior capsule that a vacuolated area was observed under the dissecting microscope. On the 30th day, the posterior cortical fibers in this area showed marked swelling, and the posterior capsule became extremely thin. On the 40th day, the anterior cortex became unusually thick, and the lens nucleus was dislocated towards the posterior capsule. On the 50th day, the posterior capsule ruptured. At this time the lens fibers from the perinuclear zone constituted the central area of rupture, and the cortical fibers from the equator formed the protruded area outside the lens. CONCLUSION The findings revealed that the RLC mouse lens has an abnormal lens fiber arrangement from the early period of lens development, that the lens fibers from the perinuclear zone cause swelling without forming the posterior suture, and that the thin capsule is ruptured by pushing out of the nucleus by thickening of the anterior cortex.
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Affiliation(s)
- Y Teramoto
- Department of Ophthalmic Anatomy and Physiology, Graduate School of Medical Sciences, Kitasato University, 1-15-1 Kitasato, Sagamihara, Kanagawa 228-8555, Japan
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Okubo S, Mashige F, Omori M, Hashimoto Y, Nakahara K, Kanazawa H, Matsushima Y. Enantiomeric determination of L- and D-lactic acid in human cerebrospinal fluid by chiral ligand exchange high-performance liquid chromatography. Biomed Chromatogr 2000; 14:474-7. [PMID: 11113927 DOI: 10.1002/1099-0801(200011)14:7<474::aid-bmc995>3.0.co;2-3] [Citation(s) in RCA: 22] [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: 11/08/2022]
Abstract
Enantiomeric determination of L- and D-lactate in human cerebrospinal fluid (CSF) was achieved by HPLC on a chiral stationary phase with UV detection. Samples were submitted to a solid-phase extraction procedure using Oasis HLB Plus Extraction Cartridge and L- and D-lactate in the extract were separated by Shodex ORpac CRX-453 B column, a ligand exchange column for chiral separation, using a mobile phase containing copper (II) ion. L- and D-lactate were determined in 25 min. Intra-assay precision in CSF was 4.98% (mean 1.85 mmol/L) for L-lactate and 10.1% (mean 4.96 micromol/L) for D-lactate (n = 5). Detection limits were between 1.0 (L-lactate) and 1.5 (D-lactate) pmol. The mean values (n = 3) of analytical recovery for L- and D-lactate were 95% and 107%, respectively. The mean +/- SD of concentrations of L- and D-lactate in CSF (n = 20) were 1.52 +/- 0.54 mmol/L and 10.98 +/- 5.15 micromol/L, respectively.
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Affiliation(s)
- S Okubo
- Department of Clinical Laboratory, Tokyo University Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
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95
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Kinoshita Y, Hassan MS, Kawamura M, Matsushima Y, Okada A, Maekawa T, Fukui H, Waki S, Kishi K, Chiba T. Increased hepatocyte growth factor content in rat stomach during omeprazole treatment. Digestion 2000; 59:102-9. [PMID: 9586821 DOI: 10.1159/000007474] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS Hepatocyte growth factor (HGF) is a potent mitogen of gastric epithelial cells, and its production is stimulated during the healing of gastric mucosal lesions. In this study, the effect of a proton pump inhibitor, omeprazole, on the production and degradation of HGF in the stomach was examined to elucidate the mechanism of the omeprazole-induced acceleration of gastric mucosal healing. METHODS Indomethacin-induced gastric mucosal lesions were induced in rats with or without omeprazole pretreatment. HGF gene expression and the content of HGF was investigated in the rat stomach. HGF degradation by gastric juice was also tested. RESULTS In omeprazole-treated rats, the healing of gastric mucosal lesions was accelerated in comparison with those of untreated rats. Although omeprazole treatment did not enhance the indomethacin-induced increase in HGF gene expression, it significantly augmented the gastric HGF content. Furthermore, omeprazole increased the gastric content not only of the inactive but also of the active heterodimeric form of HGF, and this appeared to be due to the inhibition of the HGF degradation by gastric juice. CONCLUSION Omeprazole-induced acceleration of gastric mucosal healing may be mediated at least in part by the reduced degradation of HGF in the stomach.
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Affiliation(s)
- Y Kinoshita
- Department of Medicine, Kobe University School of Medicine, Japan
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96
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Kanazawa H, Miyata C, Nagata Y, Urano S, Matsushima Y. Determination of alpha-tocopherol and alpha-tocopherylquinone in rat tissues and plasma by high-performance liquid chromatography with electrochemical detection. Chem Pharm Bull (Tokyo) 2000; 48:1462-6. [PMID: 11045451 DOI: 10.1248/cpb.48.1462] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Alpha-tocopherol and alpha-tocopherylquinone in rat tissues and plasma were determined simultaneously by using high-performance liquid chromatography-electrochemical detection (HPLC-ED) with dual electrodes in the series mode. Biological samples were saponified in the presence of a mixture of butylated hydroxytoluene, ascorbic acid, and pyrogallol and then extracted with hexane. The compounds were separated on a C18 column using a mobile phase containing 95% methanol and 0.05 M sodium perchlorate as the supporting electrolyte. After HPLC separation, alpha-tocopherylquinone was first reduced at an upstream electrode at -500 mV Both alpha-tocopherol and the reduction product of alpha-tocopherylquinone were then oxidized downstream at +600 mV. Only the downstream electrode current was monitored for the determination. Linearity of the standard curves was obtained over the range 5-30 pmol for alpha-tocopherol and alpha-tocopherylquinone. Minimum detectable quantities (S/N of 3) were 0.25 pmol for alpha-tocopherol and 0.31 pmol for alpha-tocopherylquinone. The method was applied to analysis of the contents of alpha-tocopherol and alpha-tocopherylquinone in rat tissues and plasma. By hyperoxia, the content of alpha-tocopherol was decreased remarkably in lung, and in contrast, the contents of alpha-tocopherylquinone were increased in all tissues studied with the exception of plasma, though the content of alpha-tocopherylquinone in normal rats is quite small. The technique is particularly useful in the quantitation of the oxidation of alpha-tocopherol in biological samples.
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Affiliation(s)
- H Kanazawa
- Kyoritsu College of Pharmacy, Tokyo, Japan.
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97
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Abstract
A high performance liquid chromatography (HPLC) method has been developed for the simultaneous determination of theophylline and its metabolites, with caffeine and its metabolites. The method is simple and applicable to planning the administration of theophylline. We used a column-switching system in combination with atmospheric pressure chemical ionization liquid chromatography-mass spectrometry (LC-APCI-MS) for the determination of theophylline and its metabolites in biological samples. In the mass spectrum, the molecular ions of these drugs and metabolites were clearly observed as base peaks. The method is sufficiently sensitive and accurate for the pharmacokinetic studies of these drugs.
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Affiliation(s)
- H Kanazawa
- Kyoritsu College of Pharmacy, Tokyo, Japan
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98
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Matsushima Y, Ishikawa O, Kurosawa M, Miyachi Y. Stem cell factor and IL-6 do not promote complete maturation of human cultured mast cells from umbilical cord blood cells: an ultrastructural study. J Dermatol Sci 2000; 24:4-13. [PMID: 10960774 DOI: 10.1016/s0923-1811(00)00076-1] [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: 11/18/2022]
Abstract
Human mast cells are classified into two phenotypes based on their neutral protease compositions. One type is a tryptase-positive and chymase-positive MCTC cell that is predominant in the skin, another is a tryptase-positive and chymase-negative MCT cell that is predominant in the lung. Cord blood-derived human mast cells cultured in the presence of stem cell factor and interleukin-6 are a mixture of MCTC and MCT at various ratios, as revealed by immunocytochemical staining. We performed an electron microscopic analysis of cord blood-derived human cultured mast cells and found that they were so immature that we could not distinguish MCT and MCTC from their ultrastructural morphology. The response to secretagogues was not the response of MCTC but rather of MCT. Although human cultured mast cells are the most useful cells for use in in vitro experiments, the present culture condition supplemented with stem cell factor and interleukin-6 does not develop fully mature mast cells in vitro.
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Affiliation(s)
- Y Matsushima
- Department of Dermatology, Gunma University School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan.
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99
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Matsushima Y, Nagabukuro A, Matsuda Y, Kitagawa Y. Cloning and genomic mapping of the mouse matrin 3 gene and its pseudogenes. Cytogenet Cell Genet 2000; 81:194-8. [PMID: 9730601 DOI: 10.1159/000015028] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Matrin 3 forms a family of nuclear proteins together with NP220s. Using cDNA sequences encoding rat matrin 3 as a probe, we isolated genomic clones of mouse matrin 3 gene and its two pseudogenes. The genuine mouse matrin 3 gene has an exon covering the N-terminal one third of matrin 3 with a sequence 99% identical to rat matrin 3 cDNA. The gene was localized to Chromosome 18C by in situ hybridization and mapped at 3.6 cM distal to D18Mit117 and 2.2 cM proximal to D18Mit14 on mouse Chromosome 18 by interspecific backcross analysis. One pseudogene has an exon-like sequence covering the N-terminal half of matrin 3 that is interrupted by an unknown sequence. Reverse transcription polymerase chain reaction (RT-PCR) of RNA from mouse liver and brain using unique sequences of the genuine gene and the pseudogene confirmed the expression of only the former. The other pseudogene has a sequence only 80% identical to rat cDNA and is partially deleted and reversed. These pseudogenes were localized to Chromosome 4E2 and 8D2, respectively.
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Affiliation(s)
- Y Matsushima
- Biochemical Regulation, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
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100
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Kitamura T, Matsushima Y, Tokuyama T, Kono S, Nishimura K, Komeda M, Yanai M, Kijima T, Nojiri C. Physical model-based indirect measurements of blood pressure and flow using a centrifugal pump. Artif Organs 2000; 24:589-93. [PMID: 10971242 DOI: 10.1046/j.1525-1594.2000.06605.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [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: 11/20/2022]
Abstract
This article describes a technique offering indirect measurements of pump pressure differential and flow with certain accuracy independent of changes in blood viscosity. This technique is based on noninvasive measurements of the motor current and rotation speed using the physical model equations of the centrifugal pump system. Blood viscosity included in the coefficients of the dynamic equations is first estimated, and then substitution of the estimated viscosity into the steady equations of the model provides pump flow and pressure differential. In vitro tests using a Capiox pump showed a sufficient linear correlation between actual values and their estimates for pressure differential and pump flow. An in vivo test using a 45 kg sheep showed that the proposed algorithm needs robustness for the convergence of estimates of viscosity. An overall evaluation, however, of the developed algorithm/model showed indications of success in terms of efficient computation and modeling.
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Affiliation(s)
- T Kitamura
- Department of Mechanical System Engineering, College of Computer Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, Japan.
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