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Kakuta K, Dohi K, Okuyama K, Miyoshi M, Yamanaka T, Kawamura M, Masuda J, Kurita T, Yamada N, Sumida Y, Ito M. P6479Impact of renal function on the underlying pathophysiology of coronary plaque composition in patients with type 2 diabetes mellitus. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6479] [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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Nanashima A, Sumida Y, Abo T, Nagasaki T, Tobinaga S, Fukuoka H, Takeshita H, Hidaka S, Tanaka K, Sawai T, Yasutake T, Nagayasu T. Comparison of Survival between Anatomic and Non-Anatomic Liver Resection in Patients with Hepatocellular Carcinoma: Significance of Surgical Margin in Non-Anatomic Resection. Acta Chir Belg 2016. [DOI: 10.1080/00015458.2008.11680280] [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] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- A. Nanashima
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y. Sumida
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T. Abo
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T. Nagasaki
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S. Tobinaga
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - H. Fukuoka
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - H. Takeshita
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S. Hidaka
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - K. Tanaka
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T. Sawai
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T. Yasutake
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T. Nagayasu
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Mizuno Y, Shimura Y, Horiike S, Takimoto T, Maegawa S, Tanba K, Matsumura-Kimoto Y, Sumida Y, Tatekawa S, Tsukamoto T, Chinen Y, Mizutani S, Nagoshi H, Yamamoto-Sugitani M, Matsumoto Y, Kobayashi T, Kuroda J, Taniwaki M. Burkitt Lymphoma Preceded by Autoimmune Hemolytic Anemia due to Anti-D Antibody. Intern Med 2016; 55:2253-8. [PMID: 27523004 DOI: 10.2169/internalmedicine.55.6564] [Citation(s) in RCA: 1] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We herein report a rare case of Burkitt lymphoma (BL) preceded by autoimmune hemolytic anemia (AIHA) caused by autoantibodies against D antigen. After a partial response to AIHA with prednisolone (PSL) treatment for 7 months, the patient developed BL with a t(8;22)(q24;q11.2) chromosomal translocation. Intensive immunochemotherapy, including rituximab, led to a complete response (CR) of BL; however, anti-D antibody remained detectable in the plasma and antibody-dissociated solution from erythrocytes, thus continuous therapy with PSL was necessary even after achievement of the CR. BL with AIHA is extremely rare, with only one previously reported case in the literature.
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Affiliation(s)
- Yoshimi Mizuno
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Japan
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Abstract
Non-alcoholic fatty liver disease (NAFLD) is now the most common liver disease affecting high proportion of the population worldwide. NAFLD encompasses a large spectrum of conditions ranging from fatty liver to non-alcoholic steatohepatitis (NASH), which can progress to cirrhosis and cancer. NAFLD is considered as a multifactorial disease in relation to the pathogenic mechanisms. Oxidative stress has been implicated in the pathogenesis of NAFLD and NASH and the involvement of reactive oxygen species (ROS) has been suggested. Many studies show the association between the levels of lipid oxidation products and disease state. However, often neither oxidative stress nor ROS has been characterized, despite oxidative stress is mediated by multiple active species by different mechanisms and the same lipid oxidation products are produced by different active species. Further, the effects of various antioxidants have been assessed in human and animal studies, but the effects of drugs are determined by the type of active species, suggesting the importance of characterizing the active species involved. This review article is focused on the role of free radicals and free radical-mediated lipid peroxidation in the pathogenesis of NAFLD and NASH, taking characteristic features of free radical-mediated oxidation into consideration. The detailed analysis of lipid oxidation products shows the involvement of free radicals in the pathogenesis of NAFLD and NASH. Potential beneficial effects of antioxidants such as vitamin E are discussed.
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Affiliation(s)
- Y Sumida
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine , Kyoto , Japan
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Suzuki T, Yano Y, Sakamoto M, Uemura M, Yasuma T, Onishi Y, Sasaki R, Matsumoto K, Hayashi T, Maruyama-Furuta N, Akatsuka H, Gabazza EC, Sumida Y, Takei Y. Correlation of circulating dehydroepiandrosterone with activated protein C generation and carotid intima-media thickness in male patients with type 2 diabetes. Diabet Med 2012; 29:e41-6. [PMID: 22248365 DOI: 10.1111/j.1464-5491.2012.03573.x] [Citation(s) in RCA: 4] [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: 11/28/2022]
Abstract
AIMS Dehydroepiandrosterone exerts a protective effect against cardiovascular diseases. However, the relationship of dehydroepiandrosterone with the anticoagulant factor activated protein C, generated by the thrombin-thrombomodulin complex on vascular endothelial cells, remains unknown. This study aimed at studying the relationship between dehydroepiandrosterone and activated protein C generation in patients with Type 2 diabetes. METHODS Sixty-two male patients with Type 2 diabetes were enrolled in this study. Data obtained from 40 healthy male subjects were used as controls. The plasma levels of dehydroepiandrosterone, the activated protein C-protein C inhibitor complex, high-sensitivity C-reactive protein and monocyte chemoattractant protein-1 were measured by enzyme immunoassays. Carotid intima-media thickness was measured by ultrasonography. RESULTS The plasma levels of dehydroepiandrosterone (5.15 ± 2.81 vs. 3.76 ± 2.16 ng/ml; P < 0.005) and the activated protein C-protein C inhibitor complex (1.90 ± 1.07 vs. 1.02 ± 0.51 ng/ml; P < 0.001) were significantly lower in patients with diabetes than in normal subjects. Univariate analysis showed a significant correlation of the plasma level of dehydroepiandrosterone with that of the activated protein C-protein C inhibitor complex (r = 0.48, P < 0.001), high-sensitivity C-reactive protein (r = -0.30, P < 0.05) and with the mean intima-media thickness (r = -0.28, P < 0.05) in patients with diabetes. Stepwise multiple regression analysis showed that the plasma level of dehydroepiandrosterone is significantly correlated with the plasma levels of the activated protein C-protein C inhibitor complex (F = 18.06) and high-sensitivity C-reactive protein (F = 4.94). There was no correlation between the plasma levels of dehydroepiandrosterone and monocyte chemoattractant protein-1. CONCLUSIONS These results suggest that lower circulating levels of dehydroepiandrosterone are associated with decreased activated protein C generation and higher intima-media thickness in patients with Type 2 diabetes.
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Affiliation(s)
- T Suzuki
- Department of Diabetes, Metabolism and Endocrinology, Mie University Graduate School of Medicine, Mie, Japan
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Masuyama H, Segawa T, Sumida Y, Masumoto A, Inoue S, Akahori Y, Hiramatsu Y. Different profiles of circulating angiogenic factors and adipocytokines between early- and late-onset pre-eclampsia. BJOG 2009; 117:314-20. [DOI: 10.1111/j.1471-0528.2009.02453.x] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Yoshida N, Wakabayashi N, Kanemasa K, Sumida Y, Hasegawa D, Inoue K, Morimoto Y, Kashiwa A, Konishi H, Yagi N, Naito Y, Yanagisawa A, Yoshikawa T. Endoscopic submucosal dissection for colorectal tumors: technical difficulties and rate of perforation. Endoscopy 2009; 41:758-61. [PMID: 19746316 DOI: 10.1055/s-0029-1215028] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [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: 12/13/2022]
Abstract
BACKGROUND AND STUDY AIM Endoscopic submucosal dissection (ESD) for colorectal tumors is not generally recommended because of the technical difficulties and complications, including perforation. These aspects of ESD are thoroughly analyzed in our retrospective study. PATIENTS AND METHODS We studied 105 colorectal tumors, from 100 patients, that were treated by ESD at the Kyoto Prefectural University of Medicine or Nara City Hospital between 2005 and 2008. We analyzed tumor size, operation time, rate of en bloc resection, and complications. In addition, we thoroughly investigated the cases of perforation. RESULTS The average tumor size was 30.4 mm; average operation time, 102 min; and rate of en bloc resection, 88.5 %. Perforation occurred in 10.4 % of the ESD procedures. Of the 11 perforations, 8 were detected during ESD and treated by clip closure during endoscopy, while 3 were evident only on subsequent routine computed tomography (CT); these were also managed conservatively. A case of postoperative hemorrhage was also observed. CONCLUSIONS ESD effectively achieved a high rate of en bloc resection. However, the perforation rate was substantial; hence, improvement in the ESD method is required. The outcomes of ESD, especially for early colorectal malignancies, need to be assessed further.
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Affiliation(s)
- N Yoshida
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto 602-8566, Japan.
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Sumida Y, Nakamura K, Kanayama K, Akiho H, Teshima T, Takayanagi R. Preparation of functionally preserved CD4+ CD25high regulatory T cells from leukapheresis products from ulcerative colitis patients, applicable to regulatory T-cell transfer therapy. Cytotherapy 2009; 10:698-710. [PMID: 18985477 DOI: 10.1080/14653240802345812] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Ulcerative colitis (UC) is an intractable disease; therefore new therapies need to be developed. CD4(+) CD25(high) regulatory T cells (Treg) significantly ameliorate colitis in animal models. In active UC patients, although Treg are functionally preserved, their proportion in peripheral blood decreases. Thus Treg transfer therapy is expected to be efficacious for UC. During leukapheresis for UC, Treg are depleted, as well as colitogenic effector leukocytes. We therefore designed a leukapheresis/Treg transfer therapy in which Treg are isolated from leukapheresis products and transfused to patients, and studied large-scale germ-free methods of Treg preparation. METHODS Using the CliniMACS cell selection system, we conducted Treg isolation experiments from leukapheresis products in which B and CD8(+) T cells were depleted, followed by positive selection of CD25(+) cells. In some experiments, isolated Treg or non-Treg were expanded with interleukin-2 (IL-2) +/- transforming growth factor (TGF)-beta1. Expression of a Treg-specific marker, FOXP3, and gut-homing receptors, and suppressor activity of isolated or cultured cells, were analyzed. RESULTS CD4(+) CD25(high) T cells were collected and efficiently enriched with a good recovery rate. Isolated cells preferentially expressed FOXP3 and significantly suppressed T-cell proliferation in vitro. In addition, isolated Treg could be efficiently expanded, and Treg could be induced from non-Treg with TGF-beta1 in vitro. TGF-beta1 significantly up-regulated alphaEbeta7 and alpha4beta7 integrins. DISCUSSION We have established a method of Treg isolation from leukapheresis products that can be used clinically; therefore, Treg transfer therapy is feasible in combination with leukapheresis for UC. Expansion or induction of Treg in vitro may be another approach to Treg-based immunotherapy.
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Affiliation(s)
- Y Sumida
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Higuchi N, Sumida Y, Nakamura K, Itaba S, Yoshinaga S, Mizutani T, Honda K, Taki K, Murao H, Ogino H, Kanayama K, Akiho H, Goto A, Segawa Y, Yao T, Takayanagi R. Impact of double-balloon endoscopy on the diagnosis of jejunoileal involvement in primary intestinal follicular lymphomas: a case series. Endoscopy 2009; 41:175-8. [PMID: 19214900 DOI: 10.1055/s-0028-1119467] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [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: 02/06/2023]
Abstract
In recent years, primary gastrointestinal follicular lymphoma has been increasingly detected in the duodenum on esophagogastroduodenoscopy (EGD). Primary gastrointestinal follicular lymphomas are frequently distributed to multiple sites in the gastrointestinal tract. Therefore, investigation into the spread of follicular lymphomas in the small bowel is important in order to determine the most appropriate treatment strategy. The performance of double-balloon endoscopy (DBE) in the diagnosis of jejunoileal follicular lymphoma lesions has not been fully evaluated. We aimed to investigate the value of DBE in addition to computed tomography (CT) and (18)F-fluorodeoxyglucose positron emission tomography ((18)F-FDG-PET) in the diagnosis of jejunoileal follicular lymphoma. DBE with biopsy was performed in seven patients with primary duodenal follicular lymphoma diagnosed by EGD, in order to investigate jejunoileal involvement. Jejunoileal follicular lymphoma lesions were detected by DBE in six out of the seven patients (three in the jejunum and three in the jejunum and ileum), whereas CT and (18)F-FDG-PET failed to detect the existence of these lesions. Endoscopic findings of the jejunoileal lesions revealed multiple white nodules and white villi, which were similar to those of duodenal lesions. DBE was more useful for the diagnosis of jejunoileal involvement in primary intestinal follicular lymphoma than CT and (18)F-FDG-PET. The use of DBE will become important for determining the most appropriate treatment for gastrointestinal follicular lymphoma.
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Affiliation(s)
- N Higuchi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Nanashima A, Sumida Y, Abo T, Nagasaki T, Tobinaga S, Fukuoka H, Takeshita H, Hidaka S, Tanaka K, Sawai T, Yasutake T, Nagayasu T. Comparison of survival between anatomic and non-anatomic liver resection in patients with hepatocellular carcinoma: significance of surgical margin in non-anatomic resection. Acta Chir Belg 2008; 108:532-537. [PMID: 19051461] [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: 05/27/2023]
Abstract
AIMS Anatomic resection, i.e., systematic removal of a liver segment confined by portal branches, is theoretically effective in eradicating intrahepatic metastasis of hepatocellular carcinoma (HCC). The procedure may reduce tumour recurrence and enhance survival of HCC patients. To determine the significance of anatomic resection for HCC patients, we retrospectively conducted a comparative analysis between anatomic (AR) and non-anatomic liver resection (NAR) in 113 Japanese HCC patients with a solitary tumour, a tumour located within one segment, absence or invasion of distal to second order branches of the portal vein, and absence or invasion of peripheral branches of the hepatic vein. METHODS Patients were divided into two groups, AR group (n = 49) and NAR group (n = 64). RESULTS The prevalence of liver damage Grade B in the NAR group was significantly greater than in the AR group (p < 0.05). Tumour-free and overall survival following liver resection was not significantly different between AR and NAR groups. In the NAR group, tumour-free and overall survival in patients with tumour exposure at the surgical margin was significantly lower than with a surgical margin greater than 0 mm (not exposed) (p < 0.05). Survival between the AR and NAR groups without tumour exposure at the surgical margin was similar. CONCLUSIONS Anatomic resection is the theoretical aim. In HCC patients with impaired liver functions, limited liver resection without tumour exposure may provide longer tumour-free and overall survival.
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Affiliation(s)
- A Nanashima
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
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Sumida Y, Ohta B, Yamagami H, Ohfuchi H, Branch J. 194: A Retrospective Study of Hospital Delays in Reperfusion for Patients With ST-Elevation Myocardial Infarction (STEMI) in a Japanese Community Hospital. Ann Emerg Med 2008. [DOI: 10.1016/j.annemergmed.2008.01.163] [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: 10/22/2022]
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Nanashima A, Sumida Y, Abo T, Takeshita H, Hidaka S, Sawai T, Yasutake T, Nagayasu T. Trisectionectomy for large hepatocellular carcinoma using the liver hanging maneuver. Eur J Surg Oncol 2008; 35:326-30. [PMID: 18316172 DOI: 10.1016/j.ejso.2008.01.023] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Accepted: 01/23/2008] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND/PURPOSE Large liver tumors often expand and severely compress intrahepatic vessels. In cases of the trisectionectomy for such tumors, however, it is difficult to adequately expose the transection planes. The liver hanging maneuver (LHM) is a useful technique for hemihepatectomy and an adequate transection plane might be also required in trisectionectomy. METHODS LHM procedure is basically followed by the Belghiti's method. A nasogastric tube was used for hanging. At the hepatic hilum, the tube was placed between the liver and Glisson's pedicle. RESULTS We report here the application of LHM for right and left trisectionectomy in patients with a large hepatoma in two cases. In case of a right trisectionectomy for a large tumor compressing the umbilical Glisson's pedicle, an adequate transection plane was obtained using the LHM because the resected and remnant livers rotated to the other side upon lifting the tube during transection. In case of a left trisectionectomy for a large hepatic tumor compressing the right hepatic vein, an adequate transection plane along the right hepatic vein was obtained using LHM as well. CONCLUSIONS LHM is a useful surgical application for right and left trisectionectomy in patients with large liver tumors compressing the cut plane.
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Affiliation(s)
- A Nanashima
- Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan.
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Bruno NE, Yano Y, Takei Y, Gabazza EC, Qin L, Nagashima M, Morser J, D'Alessandro-Gabazza CN, Taguchi O, Sumida Y. Protective role of thrombin activatable fibrinolysis inhibitor in obstructive nephropathy-associated tubulointerstitial fibrosis. J Thromb Haemost 2008; 6:139-46. [PMID: 17988229 DOI: 10.1111/j.1538-7836.2007.02826.x] [Citation(s) in RCA: 9] [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: 01/03/2023]
Abstract
BACKGROUND Thrombin-activatable fibrinolysis inhibitor (TAFI) has been reported to affect wound healing and fibrotic processes, but its role in renal tubulointerstitial fibrosis remains unknown. OBJECTIVE To study its potential role, we compared TAFI-deficient and wild-type mice for the degree of renal fibrosis caused by unilateral ureteral obstruction (UUO). METHODS The grade of tubulointerstitial fibrosis, the activity of plasmin, MMP-2 and MMP-9 were evaluated on days 4 and 9 after UUO. RESULTS The renal content of hydroxyproline and the activity of plasmin, MMP-2 and MMP-9 were significantly increased in kidneys with UUO from TAFI-deficient mice compared with those from wild-type mice. These differences disappeared when animals with UUO from both groups were treated with the plasmin inhibitor tranexamic acid. The renal concentrations of fibrogenic cytokines were also significantly elevated in kidneys with UUO from TAFI-deficient mice compared with those from wild-type mice. CONCLUSION The results of this study suggest that increased renal activity of plasmin in TAFI-deficient mice causes increased renal interstitial fibrosis in obstructive nephropathy.
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Affiliation(s)
- N E Bruno
- Department of Diabetes and Endocrinology, Mie University Graduate School of Medicine, Tsu-city, Mie, Japan
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Matsumoto K, Yano Y, Gabazza EC, Araki R, Bruno NE, Suematsu M, Akatsuka H, Katsuki A, Taguchi O, Adachi Y, Sumida Y. Inverse correlation between activated protein C generation and carotid atherosclerosis in Type 2 diabetic patients. Diabet Med 2007; 24:1322-8. [PMID: 17971179 DOI: 10.1111/j.1464-5491.2007.02289.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [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: 11/29/2022]
Abstract
AIMS Activated protein C (APC) is a key regulator of the clotting system and immune responses. We studied the relationship between the degree of atherosclerosis as measured by the intima-media thickness (IMT) of carotid artery and APC generation in Type 2 diabetic patients. METHODS Eighty-seven Type 2 diabetic patients and 35 control subjects participated. APC generation was assessed by the plasma APC-protein C inhibitor complex (APC-PCI) levels and the mean IMT of carotid artery was measured by ultrasonography. The plasma levels of the thrombin-anti-thromobin complex (TAT) and platelet-derived growth factor (PDGF) were measured by enzyme-linked immunoassays. RESULTS Plasma TAT levels were significantly higher in diabetic patients [2.03 (1.12, 2.56) ng/ml, median (25th, 75th percentile)] compared with control subjects [0.85 (0.55, 2.08) ng/ml, P < 0.01]. Plasma APC-PCI levels were significantly lower in diabetic patients [0.93 (0.74, 1.22) ng/ml], than in control subjects [1.66 (1.25, 2.36) ng/ml, P < 0.001]. The mean IMT was significantly increased in diabetic patients (0.881 +/- 0.242 mm; mean +/- sd) compared with control subjects (0.669 +/- 0.140 mm; P < 0.01). Univariate analysis showed a significant and inverse correlation between plasma APC-PCI levels and mean IMT (r = -0.32, P < 0.005), and multivariate regression analysis confirmed the independent correlation (P < 0.05). Moreover, plasma APC-PCI levels significantly and inversely correlated with plasma PDGF levels in diabetic patients (r = -0.30, P < 0.01). CONCLUSIONS These results suggest that decreased APC generation is associated with vascular atherosclerotic changes in Type 2 diabetic patients.
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Affiliation(s)
- K Matsumoto
- Department of Diabetes and Endocrinology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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Sumida Y, Ohta B, Yamagami H, Ohfuchi H. 365: Retrospective Study of Delayed Diagnosis of Acute Myocardial Infarction (AMI) at the Emergency Department (ED) in a Japanese Community Hospital. Ann Emerg Med 2007. [DOI: 10.1016/j.annemergmed.2007.06.426] [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: 10/22/2022]
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Itaba S, Higuchi N, Nakamura K, Sumida Y, Kashiwabara Y, Arita Y, Ito T, Migita Y, Takayanagi R. Education and Imaging. Hepatobiliary and pancreatic: spontaneous cystogastric fistula. J Gastroenterol Hepatol 2007; 22:1348. [PMID: 17688674 DOI: 10.1111/j.1440-1746.2007.05088.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- S Itaba
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Honda K, Mizutani T, Higuchi N, Kanayama K, Sumida Y, Yoshinaga S, Itaba S, Akiho H, Yoshimura R, Nakamura K, Ueki T, Miyasaka Y, Takayanagi R. A Meckel's diverticulum with an ileal ulcer detected with double-balloon enteroscopy. Endoscopy 2007; 39 Suppl 1:E160. [PMID: 17570100 DOI: 10.1055/s-2006-925379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- K Honda
- Dept. of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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18
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Honda K, Itaba S, Mizutani T, Sumida Y, Kanayama K, Higuchi N, Yoshinaga S, Akiho H, Kawabe K, Arita Y, Ito T, Nakamura K, Takayanagi R. An increase in the serum amylase level in patients after peroral double-balloon enteroscopy: an association with the development of pancreatitis. Endoscopy 2006; 38:1040-3. [PMID: 17058172 DOI: 10.1055/s-2006-944831] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [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: 02/06/2023]
Abstract
BACKGROUND AND STUDY AIMS Double-balloon enteroscopy (DBE) is a novel technique that allows the enteroscope to be inserted deep into the small intestine. The procedure has been thought to be safe, but cases of acute pancreatitis after peroral DBE have recently been observed. The aim of this study was to confirm the occurrence of hyperamylasemia after peroral DBE. PATIENTS AND METHODS Peroral DBE was carried out in 13 patients from July 2005 to February 2006. Blood samples were taken before and 3 h after the procedure, and serum pancreatic amylase levels were measured. The patients were also evaluated for pancreatic-type abdominal pain after the procedure. Hyperamylasemia after peroral DBE was defined as an elevation of the serum pancreatic amylase level to more than the upper normal limit and twice the level before the procedure. Pancreatitis was diagnosed on the basis of both pancreatic-type abdominal pain and hyperamylasemia. RESULTS Hyperamylasemia after peroral DBE occurred in six patients (46.2 %). One of the six patients with hyperamylasemia had pancreatic-type abdominal pain after the procedure and developed acute pancreatitis. The average procedure time was 105 min (range 65 - 155 min) in the patients with hyperamylasemia, and did not significantly differ from that in the group without hyperamylasemia (99 min). CONCLUSIONS Hyperamylasemia after peroral DBE occurs frequently and may be associated with development of pancreatitis.
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Affiliation(s)
- K Honda
- Dept. of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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19
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Nanashima A, Shibasaki S, Sakamoto I, Sueyoshi E, Sumida Y, Abo T, Nagasaki T, Sawai T, Yasutake T, Nagayasu T. Clinical evaluation of magnetic resonance imaging flowmetry of portal and hepatic veins in patients following hepatectomy. Liver Int 2006; 26:587-94. [PMID: 16762004 DOI: 10.1111/j.1478-3231.2006.01273.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [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: 01/12/2023]
Abstract
BACKGROUND Hepatic blood flow was associated with degree of hepatic damage. Measurements of blood flow using ultrasonography (US) may vary due to any observer's and patient's conditions. The utility of magnetic resonance imaging (MRI) flowmetry in portal and hepatic veins was assessed. PATIENTS AND METHODS Using the phase-contrast method, the mean flow velocity of portal (PVF) and hepatic vein (HVF) were determined by MRI and US in 75 consecutive patients with liver diseases, including 58 patients undergoing hepatectomy. The correlations between these parameters and clinicopathological findings were examined. RESULTS PVF and HVF measured by MRI flowmetry were 12.8+/-4.5 and 14.7+/-5.3 cm/s, respectively. There was no significant correlation of both flows between MRI and US. PVF correlated significantly with portal pressure (r = -0.722; P < 0.05). There was a negative correlation between HVF and histological activity index score (r = -0.366; P < 0.05). PVF and HVF were lower in patients with cirrhosis and higher staging score (2-4) and PVF was lower in patients with higher grading score (2-3; P < 0.05). PVF and HVF were not significantly associated with postoperative complications. CONCLUSIONS Our results suggest that MRI flowmetry is a potentially useful tool for measurement of hepatic blood flow and recommend its use for estimation of liver cirrhosis-associated impairment.
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Affiliation(s)
- A Nanashima
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
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20
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Higuchi N, Akahoshi K, Sumida Y, Kubokawa M, Motomura Y, Kimura M, Matsumoto M, Nakamura K, Nawata H. Endoscopic band ligation therapy for upper gastrointestinal bleeding related to Mallory-Weiss syndrome. Surg Endosc 2006; 20:1431-4. [PMID: 16703428 DOI: 10.1007/s00464-005-0608-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2005] [Accepted: 01/05/2006] [Indexed: 01/12/2023]
Abstract
BACKGROUND No consensus exists as to the best endoscopic treatment for Mallory-Weiss syndrome. Endoscopic band ligation is a readily available and easily learned technique. This prospective study evaluated the efficacy and safety of endoscopic band ligation therapy for Mallory-Weiss syndrome. METHODS From August 1998 to June 2005, a clinical trial assessed 37 patients with a diagnosis of Mallory-Weiss syndrome who had active bleeding, exposed vessels, or both. Their lesions were treated using endoscopic band ligation. RESULTS Endoscopic band ligation was successful in 36 of 37 cases, with a follow-up period ranging from 1 to 24 months. The remaining patient had severe liver failure and disseminated intravascular coagulation. The patient bled again at 12 h and subsequently died. Except for this case, no recurrent bleeding, perforation, or other complications occurred. CONCLUSIONS The study results suggest that endoscopic band ligation is an effective, safe, and easily learned procedure for treating upper gastrointestinal bleeding related to Mallory-Weiss syndrome.
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Affiliation(s)
- N Higuchi
- Department of Gastroenterology, Aso Iizuka Hospital, 3-83 Yoshio, Iizuka, Fukuoka, 820-8505, Japan
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21
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Nanashima A, Sumida Y, Tobinaga S, Shibata K, Shindo H, Obatake M, Shibasaki S, Ide N, Nagayasu T. Postoperative changes in protein-induced vitamin K absence or antagonist II levels after hepatectomy in patients with hepatocellular carcinoma: relationship to prognosis. HPB (Oxford) 2006; 8:137-41. [PMID: 18333262 PMCID: PMC2131417 DOI: 10.1080/13651820500273475] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND alpha-Fetoprotein (AFP) has been used as a marker for hepatocellular carcinoma (HCC). However, AFP levels are often high in patients with chronic hepatitis or cirrhosis. Protein-induced vitamin K absence or antagonist II (PIVKA-II) is more sensitive for the diagnosis of HCC and prediction of patient survival. Changes in these markers after treatment may reflect treatment curability and patient outcome. METHODS We conducted a retrospective analysis of prognosis of 63 HCC patients with high preoperative levels of AFP and PIVKA-II who underwent hepatectomy and examined the relationship between postoperative changes in both markers at 1 month and patient survival. Subjects were divided into three groups according to changes in these tumour markers after hepatectomy: normalization (N) group, decreased but still above the normal level (D) group and unchanged (U) group. RESULTS There were no significant differences in the numbers of patients who developed tumour recurrence between changes in AFP and PIVKA-II. Survival analysis showed no significant differences in tumour-free and overall survivals between groups with respect to AFP level. The PIVKA-II-N group showed significantly better tumour-free and overall survival compared with the D and U groups (p<0.01). Multivariate analysis that included other prognostic factors identified changes in PIVKA-II level as a significant and independent prognostic factor associated with overall survival. DISCUSSION Although changes in AFP did not correlate with patient prognosis, normalization of PIVKA-II was significantly associated with good patient survival after hepatectomy. Normalization of PIVKA-II after hepatectomy reflected the efficacy of treatment and is a suitable predictor of prognosis in HCC patients.
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Affiliation(s)
- A. Nanashima
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical SciencesNagasakiJapan
| | - Y. Sumida
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical SciencesNagasakiJapan
| | - S. Tobinaga
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical SciencesNagasakiJapan
| | - K. Shibata
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical SciencesNagasakiJapan
| | - H. Shindo
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical SciencesNagasakiJapan
| | - M. Obatake
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical SciencesNagasakiJapan
| | - S. Shibasaki
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical SciencesNagasakiJapan
| | - N. Ide
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical SciencesNagasakiJapan
| | - Takeshi Nagayasu
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical SciencesNagasakiJapan
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22
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Nanashima A, Omagari K, Tobinaga S, Shibata K, Sumida Y, Mine M, Morino S, Shibasaki S, Ide N, Shindou H, Nagayasu T. Comparative study of survival of patients with hepatocellular carcinoma predicted by different staging systems using multivariate analysis. Eur J Surg Oncol 2005; 31:882-90. [PMID: 15993031 DOI: 10.1016/j.ejso.2005.04.016] [Citation(s) in RCA: 15] [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] [Received: 10/07/2004] [Revised: 04/13/2005] [Accepted: 04/22/2005] [Indexed: 10/25/2022]
Abstract
AIMS In a previous pilot study, we reported the usefulness of the modified the Cancer of the Liver Italian Program (CLIP) score for patients with hepatocellular carcinoma (HCC). To determine the best staging system for predicting the survival of HCC patients, we conducted a comparative analysis of prognosis using multivariate analysis in 210 Japanese HCC patients who underwent hepatic resection. METHODS We compared the survival as predicted by various staging systems, including tumour node metastasis (TNM) stage of the American Joint Commission on Cancer (AJCC) and the Liver Cancer Study Group of Japan, the Japan Integrated Staging (JIS) score (Japanese TNM and Child-Pugh classification), CLIP score and our modified CLIP score using protein induced by vitamin K absence or antagonist II (PIVKA-II). RESULTS Univariate analysis showed that discrimination of disease-free survival in the early and advanced stages by the JIS score and modified CLIP score was clearer than by the Japanese or AJCC TNM or the original CLIP score. Discrimination between stages of overall survival by all staging systems was significant. Multivariate analysis showed that the JIS, CLIP and modified CLIP scores were better staging systems for predicting survival than the Japanese and AJCC TNM. The modified CLIP score showed the lowest Akaike information criteria statistical value for disease-free and overall survival, which means the best discrimination ability for patient survival compared with the JIS score and CLIP score. CONCLUSIONS A staging system that combines tumour factors, sensitive tumour marker(s) and hepatic function is the best predictor of prognosis of HCC patients.
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Affiliation(s)
- A Nanashima
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan
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23
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Akahoshi K, Matsumoto M, Kimura M, Murata A, Murao H, Sumida Y, Kubokawa M, Ito K, Oya M. Colonic muco-submucosal elongated polyp: diagnosis with endoscopic ultrasound. Br J Radiol 2005; 78:419-21. [PMID: 15845935 DOI: 10.1259/bjr/94407232] [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: 12/16/2022] Open
Abstract
Colonic muco-submucosal elongated polyp is a new clinical entity first reported in 1998. The purpose of this report is to determine the value of endoscopic ultrasound in the diagnosis of this condition. We reviewed the endosonographic and histological findings of seven colonic muco-submucosal elongated polyps that were removed completely by endoscopic resection or surgery. The lesions appeared as pedunculated submucosal tumours, measuring 1-4 cm in maximal diameter. Endosonographically, all lesions consisted of mucosal and submucosal layers, and microcystic components were found in the submucosal layer. There were no echogenic masses or muscularis propria within the polyps. These endosonographic features corresponded to histological findings of this type of polyp which was covered with normal mucosa and composed of submucosal layer alone. The submucosal layer consisted of oedematous, loose, connective tissue and/or fibrous tissue, accompanied by dilated blood vessels and lymphatics. Endoscopic ultrasound enabled differentiation of colonic muco-submucosal elongated polyp from other submucosal lesions.
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Affiliation(s)
- K Akahoshi
- Department of Gastroenterology, ASo lizuka Hospital, lizuka, Japan
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24
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Akahoshi K, Kubokawa M, Fujimaru T, Matsumoto M, Kimura M, Akiho H, Sumida Y, Oya M. Endoscopic resection of a large pedunculated colonic polyp using an insulated-tip diathermy knife. Endoscopy 2005; 37:405-6. [PMID: 15824963 DOI: 10.1055/s-2005-861099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- K Akahoshi
- Department of Gastroenterology, Aso Iizuka Hospital, Iizuka, Japan.
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25
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Saito H, Akahoshi K, Oya M, Kubokawa M, Akiho H, Sumida Y, Fujimaru T, Higuchi N, Matsumoto M. EUS-guided endoscopic resection using band ligation of oesophageal granular cell tumour: report of a case. Acta Gastroenterol Belg 2005; 68:272-5. [PMID: 16013651] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A 60-year-old Japanese man was referred for treatment of a polypoid oesophageal tumour. Radiographic examination of the upper gastrointestinal tract disclosed a nodule with central depression in the lower esophagus. By endoscopy the nodule was yellowish and appeared submucosal. Endoscopic ultrasonography demonstrated a hypoechoic solid tumour limited in submucosa without lymph node involvement. Endoscopic resection using band ligation was performed under guidance by endoscopic ultrasonography. By histologic examination the tumour consisted of large cells arranged in nests. These cells had abundant granular cytoplasm and small round nuclei. They expressed S-100 protein and were CD68, and periodic acid-Schiff positive. No expression of alpha-smooth muscle actin was noted. The tumour was limited in submucosa. Findings were consistent with complete endoscopic resection. This report may be the first concerning an oesophageal granular cell tumour successfully treated with EUS-guided endoscopic resection using band ligation.
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Affiliation(s)
- H Saito
- Department of Gastroenterology, Aso Iizuka Hospital, Iizuka, Japan
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26
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Nanashima A, Sumida Y, Morino S, Yamaguchi H, Tanaka K, Shibasaki S, Ide N, Sawai T, Yasutake T, Nakagoe T, Nagayasu T. The Japanese integrated staging score using liver damage grade for hepatocellular carcinoma in patients after hepatectomy. Eur J Surg Oncol 2004; 30:765-70. [PMID: 15296991 DOI: 10.1016/j.ejso.2004.05.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2004] [Indexed: 01/11/2023] Open
Abstract
AIMS The new Japanese staging system for hepatocellular carcinoma (HCC), the Japan integrated staging (JIS) score, accounts for both Child-Pugh classification and Japan tumour node metastasis (TNM) staging. However, in HCC patients who undergo hepatectomy, liver function is relatively good and a better prognostic classification of hepatic function is necessary. METHODS The present study was designed to analyse the modified JIS score using liver damage grade by the Liver Cancer Study Group of Japan instead of the Child-Pugh classification (using the category indocyanine green retention rate at 15 min [ICG(R15)] instead of encephalopathy), and to compare the Japan TNM stage in 101 patients who underwent resection of HCC. RESULTS The liver damage grade showed significantly better discrimination of disease-free and overall survival than did the Child-Pugh classification. The modified JIS score system showed significant differences of disease-free and overall survivals in each score and this system was superior for discriminating survivals compared with the TNM staging. CONCLUSIONS The combined staging system of hepatic function, particularly ICG(R15), and tumour stage provides a better prediction of prognosis. The JIS score using the liver damage grade was a useful predictor of prognosis of HCC patients who underwent hepatic resection.
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Affiliation(s)
- A Nanashima
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki 852-8501, Japan.
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27
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Kaname H, Mori Y, Sumida Y, Kojima K, Kubo C, Tashiro N. Changes in the leukocyte distribution and surface expression of adhesion molecules induced by hypothalamic stimulation in the cat. Brain Behav Immun 2002; 16:351-67. [PMID: 12096883 DOI: 10.1006/brbi.2001.0635] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Emotions and the neuroendocrine system are known to affect leukocyte distribution. However, there have so far been few reports on the relationship between hypothalamically induced emotional behavior and the endocrine-immune response. We previously reported changes in the leukocyte distribution and adhesion molecules induced by anteromedial hypothalamus stimulation (AH stimulation), which elicits restlessness behaviors in the cat. In this study, we examined ventromedial hypothalamus stimulation (VMH stimulation), which elicits threat behaviors. In addition, the endocrine responses after VMH stimulation were evaluated. VMH stimulation as well as AH stimulation induced elevations of plasma cortisol and epinephrine levels and granulocytosis and lymphopenia. In contrast, VMH stimulation induced only an elevation of plasma norepinephrine and elicited an opposite pattern of CD62L expression on the leukocyte subpopulations. The different endocrine-immunological reactions between VMH stimulation and AH stimulation were thus associated with different types of behavioral responses.
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Affiliation(s)
- H Kaname
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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28
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Abstract
To evaluate the clinical significance of thioredoxin in diabetic patients, serum thioredoxin levels measured with a recently established sandwich enzyme-linked immunosorbent assay kit were compared with clinical laboratory data and complications in 174 patients with Type 2 diabetes. Thioredoxin levels were significantly higher in diabetic patients (mean value, 38 ng/ml) than in healthy controls (21 ng/ml) (p < 0.05). Fasting blood sugar and hemoglobin A1c did not correlate with thioredoxin. Plasma non-esterified fatty acids levels were significantly higher in patients with higher thioredoxin levels (>or= 40 ng/ml) than in those with lower thioredoxin levels (< 40 ng/ml) (p < 0.001). There was a significant correlation both between thioredoxin and non-esterified fatty acids in patients with diet/exercise therapy (p < 0.01) and between thioredoxin and fasting immunoreactive insulin in those treated with diet/exercise or oral hypoglycemic agents (p < 0.05). Thioredoxin did not correlate with diabetic complications. In conclusion, serum thioredoxin levels may reflect the status of insulin resistance in Type 2 diabetic patients.
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Affiliation(s)
- Y Kakisaka
- Third Department of Internal Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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29
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Sumida Y, Kuroda K, Toyoura Y, Mizumachi M, Kumagai T. [Problems inherent to the care of patients with ALS]. Gan To Kagaku Ryoho 2001; 28 Suppl 1:77-80. [PMID: 11787302] [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: 02/23/2023]
Abstract
A questionnaire survey was conducted in September 2000 to clarify the actual state and problems inherent to the care of patients with amyotrophic lateral sclerosis (ALS). The subjects were members of a patients' association, and 176 members answered the questionnaire (response rate. 64.9%). Patients being taken care of at home accounted for 76.7% of those who answered the questionnaire and those under mechanical ventilation (MV) at home for 40.3% of respondents. Compared with the results of the same survey administered by the patients' association in 1992 and 1996, the figures showed an increase of the patients being taken care of at home. Of the subjects who were receiving domiciliary services under the long-term care insurance system introduced in April 2000, those who considered the services had improved under the new system accounted for 44.2% of the respondents, and those who thought the services had worsened for 25.0%. The latter percentage included a greater number of patients under MV or who were using an aspirator and those with overworked caregivers. Moreover, the burden for the caregiver did not necessarily decrease when the patient was admitted to hospital, because attendance by the caregiver or additional costs for services were required. The new insurance system is thus considered to be inadequate and unsatisfactory for seriously disabled people, such as patients with ALS.
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Affiliation(s)
- Y Sumida
- Graduate School of Social Welfare, Osaka Prefecture University
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30
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Mohamed S, Kojima K, Fujimaru Y, Mori Y, Kaname H, Sumida Y, Kinukawa N, Tashiro N. Effects of hypothalamically elicited emotional behaviors on the plasma levels of estradiol and IGF-1. Physiol Behav 2001; 74:523-32. [PMID: 11790412 DOI: 10.1016/s0031-9384(01)00603-5] [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: 11/25/2022]
Abstract
We examined changes in the plasma levels of estradiol (E2), insulin-like growth factor-1 (IGF-1), ACTH, cortisol and catecholamines accompanying various kinds of hypothalamically elicited emotional behaviors in female cats. The emotional behaviors consisting of restlessness, threat and searching-biting (S-B) were elicited intermittently for 6 h by electrical stimulation of the anterior hypothalamus (AH), ventromedial hypothalamus (VMH) and lateral hypothalamus (LH), respectively, in awake and free-moving conditions. The blood was sampled three times immediately before, 1 h after and 6 h after the start of stimulation. The plasma levels of ACTH, cortisol and catecholamines significantly increased in both restlessness and threat behaviors, whereas in the S-B behavior, the ACTH level significantly increased, while the cortisol level showed a slight nonsignificant increase. No changes were observed in the plasma catecholamine levels in the S-B behavior. The plasma E2 level significantly increased in threat behavior after 1 and 6 h of stimulation compared to the prestimulation levels, and the level also increased in comparison to the control group after 1 h. In contrast, the restlessness and S-B behaviors had little or no effect on the E2 level. No significant changes were observed in the plasma levels of IGF-1 in all behavior groups. These findings suggest that various hypothalamically elicited emotional behaviors have differential effects on the plasma E2, but not on the IGF-1 levels. Therefore, E2 and IGF-1 are regulated independently of each other.
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Affiliation(s)
- S Mohamed
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Fukuoka 812-8582, Maidashi Higashi, Japan.
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31
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Sumida Y, Nakashima T, Yoh T, Kakisaka Y, Nakajima Y, Ishikawa H, Mitsuyoshi H, Okanoue T, Nakamura H, Yodoi J. Serum thioredoxin elucidates the significance of serum ferritin as a marker of oxidative stress in chronic liver diseases. Liver 2001; 21:295-9. [PMID: 11589765 DOI: 10.1034/j.1600-0676.2001.210501.x] [Citation(s) in RCA: 37] [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] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND/AIMS Serum thioredoxin (TRX) levels have recently been established as an indicator of oxidative stress in various diseases. The aim of the present study was to clarify the clinical significance of serum ferritin in chronic liver diseases. METHODS Levels of ferritin, transferrin saturation (TS), aspartate aminotransferase (AST), and TRX were measured in the sera of patients with chronic hepatitis C (CH-C, n=92), chronic hepatitis B (CH-B, n=28), nonalcoholic fatty liver (FL, n=31), or alcoholic liver diseases (ALD, n=17). Serum TRX levels were evaluated with a recently established sandwich enzyme-linked immunosorbent assay kit. RESULTS Serum TRX levels were significantly higher in CH-C, FL, and ALD than in healthy volunteers. A larger proportion of patients with CH-C, FL, and ALD had elevated levels of serum ferritin than CH-B. Serum ferritin levels were positively correlated with levels of TS, AST, and TRX in CH-C, but were merely correlated with TS values in CH-B. Ferritin levels were also well correlated with AST and TRX, but not with TS in FL and ALD. CONCLUSION Oxidative stress, which was evaluated by measuring serum TRX, in addition to storage iron and hepatocyte damage is a cause of increasing serum ferritin levels in chronic liver diseases. An elevated serum ferritin level, which was correlated with TS, indicates that iron-induced oxidative stress contributes to CH-C. Elevated ferritin levels in FL and ALD may be mostly due to iron-unrelated stresses.
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Affiliation(s)
- Y Sumida
- Third Department of Internal Medicine, Kyoto Prefectural University of Medicine, Kyoto University, Kyoto, Japan.
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Gu J, Sumida Y, Sanzen N, Sekiguchi K. Laminin-10/11 and Fibronectin Differentially Regulate Integrin- dependent Rho and Rac Activation via p130Cas-CrkII-DOCK180 Pathway. J Biol Chem 2001; 276:27090-7. [PMID: 11369773 DOI: 10.1074/jbc.m102284200] [Citation(s) in RCA: 136] [Impact Index Per Article: 5.9] [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: 01/08/2023] Open
Abstract
The alpha(5) chain-containing laminin isoforms, laminins-10 and -11 (laminin-10/11), are the major components of the basement membrane, having potent cell-adhesive activity. We examined the cell-adhesive and integrin-mediated signaling activities of laminin-10/11 in comparison to fibronectin, the best characterized extracellular adhesive ligand. We found that laminin-10/11 are more active than fibronectin in promoting cell migration and preferentially activate Rac, not Rho, via the p130(Cas)-CrkII-DOCK180 pathway. Cells adhering to fibronectin develop stress fibers and focal contacts, whereas cells adhering to laminin-10/11 do not, consistent with the high cell migration-promoting activity of laminin-10/11. Pull-down assays of GTP-loaded Rac and Rho demonstrated the preferential activation of Rac on laminin-10/11, in contrast to the activation of Rho on fibronectin. Activation of Rac by laminin-10/11 was associated with the phosphorylation of p130(Cas) and an increased formation of a p130(Cas)-CrkII-DOCK180 complex. Cell migration on laminin-10/11 was suppressed by the expression of either a dominant-negative Rac or CrkII mutants defective in p130(Cas) or DOCK180 binding. This is the first report demonstrating a distinct activation of Rho family GTPases resulting from adhesion to different extracellular ligands.
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Affiliation(s)
- J Gu
- Division of Protein Chemistry, Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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33
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Nakashima T, Yoh T, Sumida Y, Kakisaka Y, Mitsuyoshi H. Differences in the efficacy of ursodeoxycholic acid and bile acid metabolism between viral liver diseases and primary biliary cirrhosis. J Gastroenterol Hepatol 2001; 16:541-7. [PMID: 11350551 DOI: 10.1046/j.1440-1746.2001.02485.x] [Citation(s) in RCA: 3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AIM AND METHODS The effects of ursodeoxycholic acid (UDCA, 600 mg/day) on liver function test values, and serum and urinary bile acids levels in hepatitis C virus-related chronic hepatitis (CH, n = 39) and liver cirrhosis (LC, n = 25), and in primary biliary cirrhosis (PBC, n = 25) were compared. RESULTS The percentages of improvement in alanine transaminase (ALT) and gamma-glutamyl transpeptidase (gamma-GTP) in CH were almost the same in LC. The rates of improvement in ALT in PBC were negatively correlated with histological stages in the liver. Total serum bile acid levels in LC rose to the same extent as in CH, but the increases in PBC were significantly smaller at stages 3-4 than stages 1-2. The urinary levels of hydroxylated metabolites of UDCA only slightly increased in LC, but they increased significantly at PBC stages 3-4. CONCLUSIONS The efficacy of UDCA was preserved in LC, but diminished at PBC stages 3-4. The poor enrichment of UDCA in the bile acid pool and extensive biotransformation of UDCA may cause the limited efficacy of UDCA in the cirrhotic stage of PBC.
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Affiliation(s)
- T Nakashima
- Third Department of Internal Medicine, Kyoto Prefectual University of Medicine, Kyoto, Japan.
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Katsuki A, Sumida Y, Gabazza EC, Murashima S, Tanaka T, Furuta M, Araki-Sasaki R, Hori Y, Nakatani K, Yano Y, Adachi Y. Plasma levels of agouti-related protein are increased in obese men. J Clin Endocrinol Metab 2001; 86:1921-4. [PMID: 11344185 DOI: 10.1210/jcem.86.5.7458] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [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] [Indexed: 02/03/2023]
Abstract
To investigate the relationship between peripheral blood levels of agouti-related protein (AGRP) and various parameters of obesity, we measured the plasma level of AGRP in 15 obese and 15 nonobese men and evaluated its relationship with body mass index (BMI), body fat weight, and visceral, sc, and total fat areas measured by computed tomography, fasting insulin levels, glucose infusion rate during an euglycemic hyperinsulinemic clamp study, serum leptin, and plasma alpha-MSH. Obese men had significantly higher plasma concentrations of AGRP than nonobese men (P < 0.01). Univariate analysis showed that the plasma levels of AGRP are proportionally correlated with BMI, body fat weight, and sc fat area in obese men (BMI: r = 0.732, P < 0.01; body fat weight: r = 0.603, P < 0.02; sc fat area: r = 0.668, P < 0.01) and in all men (BMI: r = 0.839, P < 0.0001; body fat weight: r = 0.818, P < 0.0001; sc fat area: r = 0.728, P < 0.0001). In all men, the plasma levels of AGRP were significantly correlated with the visceral fat area (r = 0.478, P < 0.01), total fat area (r = 0.655, P < 0.0001), fasting insulin level (r = 0.488, P < 0.01), glucose infusion rate (r = -0.564, P < 0.01), serum level of leptin (r = 0.661, P < 0.0001), and the plasma level of alpha-MSH (r = 0.556, P < 0.01). In all subjects, multiple regression analysis showed that the plasma levels of AGRP are significantly (F = 15.522, r = 0.801, P < 0.03) correlated with the plasma levels of alpha-MSH, independently from the total fat area. However, the correlation between plasma levels of AGRP and serum levels of leptin was found to be dependent on the total fat area. In brief, these findings showed that the circulating levels of AGRP are increased in obese men and that they are correlated with various parameters of obesity. Although correlation does not prove causation, the results of this study suggest that peripheral AGRP may play a role in the pathogenesis of obesity.
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Affiliation(s)
- A Katsuki
- Third Department of Internal Medicine, Mie University School of Medicine, Mie 514-8507, Japan. katuki-a@-clin.medic.mie-u.ac.jp
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Sumida Y. [Colpocephaly]. Ryoikibetsu Shokogun Shirizu 2001:618-21. [PMID: 11043342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Y Sumida
- Department of Neonatal Medicine, Osaka Medical Center
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Katsuki A, Sumida Y, Gabazza EC, Murashima S, Furuta M, Araki-Sasaki R, Hori Y, Yano Y, Adachi Y. Homeostasis model assessment is a reliable indicator of insulin resistance during follow-up of patients with type 2 diabetes. Diabetes Care 2001; 24:362-5. [PMID: 11213893 DOI: 10.2337/diacare.24.2.362] [Citation(s) in RCA: 290] [Impact Index Per Article: 12.6] [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: 02/03/2023]
Abstract
OBJECTIVE To investigate the usefulness of the homeostasis model assessment as an index of insulin resistance (HOMA-IR) for evaluating the clinical course of patients with type 2 diabetes. RESEARCH DESIGN AND METHODS The usefulness of HOMA-IR and its relationship with insulin resistance assessed by the hyperinsulinemic-euglycemic clamp study (clamp IR) were evaluated in 55 Japanese patients with type 2 diabetes before and after treatment. The patients were subjected to diet (approximately 1,440-1,720 kcal/day) and exercise therapy (walking 10,000 steps daily) for 6 weeks during their hospitalization. RESULTS Univariate regression analysis disclosed a significant correlation between log-transformed HOMA-IR and log-transformed clamp IR before (r = -0.613, P < 0.0001) and after ( = -0.734, P < 0.0001) treatment. Neither the slopes (-0.71 +/- 0.12 vs. -0.79 +/- 0.09, F = 0.25, P = 0.61) nor the intercepts (y-intercept = 1.67 vs. 1.70, x-intercept = 2.36 vs. 2.15, F = 0.02, P = 0.88) of the regression lines between HOMA-IR and clamp IR were significantly different before and after treatment. There was a significant correlation between the decrease in log-transformed HOMA-IR and the increase in clamp IR during treatment (r = -0.617, P < 0.0001). CONCLUSIONS HOMA-IR may constitute a useful method not only for diagnosing insulin resistance, but also for follow-up during the treatment of patients with type 2 diabetes.
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Affiliation(s)
- A Katsuki
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan.
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Kojima K, Mohamed S, Fujimaru Y, Mori Y, Kaname H, Sumida Y, Kinukawa N, Tashiro N. Effects of both the emotional behavior and feeding conditions on the circulating plasma volume and plasma glucose levels in cats. Auton Neurosci 2000; 86:58-64. [PMID: 11269925 DOI: 10.1016/s1566-0702(00)00236-8] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Influence of hypothalamically induced emotional behavior on the circulating plasma volume, plasma levels of glucose, epinephrine (E), norepinephrine (NE), dopamine (DA) and cortisol were examined in awake cats under both fasted and fed conditions. Restlessness was evoked intermittently for 6 h by electrical stimulation of the anteromedial hypothalamus (AMH). Blood was sampled immediately before, 1 h after and 6 h after the start of stimulation. Changes in the plasma volume was calculated by changes of hemoglobin (Hb) and hematocrit (Ht). As the control group, another 7 cats with electrodes implanted but unstimulated were identically treated under both fasted and fed conditions. Both E and glucose levels in restlessness group once markedly increased after 1 h and then tended to decrease after 6 h, whereas NE levels in restlessness group increased after 1 h and further increased after 6 h, whether cats were fasted or fed. DA levels increased under the fasted condition of restlessness. The cortisol level markedly increased in both fasted and fed restlessness groups. The plasma volume in control group increased under the fed condition, while in restlessness group it decreased remarkably and tended to decrease more in a fasted state than in a fed state. These results indicated that AMH induced restlessness elicited marked sympatho-adrenal activation, hyperglycemia and hemoconcentration, whether cats were fasted or fed. Relationship among such responses, and the difference in responses between fasted and fed conditions were also discussed in the paper.
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Affiliation(s)
- K Kojima
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
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Katsuki A, Sumida Y, Ito K, Murashima S, Gabazza EC, Furuta M, Yano Y, Sugiyama T, Toyoda N, Adachi Y. A case of obesity, diabetes and hypertension treated with very low calorie diet (VLCD) followed by successful pregnancy with intrauterine insemination (IUI). Endocr J 2000; 47:787-91. [PMID: 11228055 DOI: 10.1507/endocrj.47.787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The patient was a 32-year-old obese woman with a history of type 2 diabetes and hypertension for 6 years. Although she was treated with antihypertensive agents and intensive insulin therapy, her hyperglycemia was difficult to control. She wanted to have a baby but pregnancy was not recommended because her diabetes was under poor control and the use of antihypertensive medication. To achieve good control of obesity, diabetes and hypertension, she was admitted to our clinical department for weight reduction using very low calorie diet (VLCD). During VLCD she had a 19.8 kg reduction in body weight and her blood glucose and blood pressure were in good control without the use of drugs. Five months later, she became pregnant after the fourth trial of intrauterine insemination (IUI) and gave birth to a female baby under insulin therapy. This is the first report that showed the usefulness of VLCD for prepregnant control of glucose metabolism and blood pressure in an obese hypertensive patient with type 2 diabetes mellitus.
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Affiliation(s)
- A Katsuki
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan
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Yano Y, Gabazza EC, Katsuki A, Furuta M, Tanaka T, Araki-Sasaki R, Hori Y, Sumida Y, Adachi Y. Plasma levels of natriuretic peptides are correlated with renin activity in normotensive type 2 diabetic patients. Diabetes Care 2000; 23:1853-5. [PMID: 11128368 DOI: 10.2337/diacare.23.12.1853a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Sumida Y, Nakashima T, Yoh T, Nakajima Y, Ishikawa H, Mitsuyoshi H, Sakamoto Y, Okanoue T, Kashima K, Nakamura H, Yodoi J. Serum thioredoxin levels as an indicator of oxidative stress in patients with hepatitis C virus infection. J Hepatol 2000; 33:616-22. [PMID: 11059866 DOI: 10.1034/j.1600-0641.2000.033004616.x] [Citation(s) in RCA: 87] [Impact Index Per Article: 3.6] [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: 12/24/2022]
Abstract
BACKGROUND/AIM It has recently been suggested that oxidative stress may be associated with hepatitis C virus (HCV) infection. Thioredoxin (TRX) is a stress-inducible thiol-containing protein. The aim of this study was to evaluate the clinical significance of serum TRX levels in patients with HCV-related chronic liver diseases. METHODS Serum TRX levels were determined with a sandwich enzyme-linked immunosorbent assay kit in 174 serum HCV-RNA positive patients, including 6 asymptomatic carriers, 124 chronic hepatitis, 20 liver cirrhosis, and 24 hepatocellular carcinoma, and in 15 healthy volunteers. RESULTS The serum TRX levels (medians and [ranges], ng/ml) were significantly elevated in the HCV-infected patients; 30.9 [20.7-37.7] in asymptomatic carriers, 34.5 [8.6-135.6]* in chronic hepatitis, 42.5 [21.4-97.2]* in liver cirrhosis, and 43.9 [11.7-180.3]** in hepatocellular carcinoma (*p<0.05, **p<0.001, vs. 24.9 [1.3-50.7] in healthy controls). Serum TRX levels were significantly correlated with the serum levels of ferritin and fibrogenesis markers, and with the histological stage of hepatic fibrosis. The serum TRX levels before interferon treatment of patients whose serum HCV-RNA was still positive on day 14 following interferon treatment (42.6 [20.1-90.0]) were significantly higher than those of patients whose serum HCV-RNA was negative on day 14 following interferon treatment (25.8 [7.4-59.8], p<0.05). CONCLUSIONS The serum TRX levels of patients with HCV infection increased with their serum ferritin levels and the progression of liver fibrosis. Patients with higher serum TRX levels exhibited resistance to interferon therapy. Oxidative stress may therefore be responsible for the pathological mechanism of HCV-related liver diseases and be one of the impediments to eradication of HCV during interferon treatment.
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Affiliation(s)
- Y Sumida
- Third Department of Internal Medicine, Kyoto Prefectural University of Medicine, Japan.
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Katsuki A, Sumida Y, Murashima S, Furuta M, Araki-Sasaki R, Tsuchihashi K, Hori Y, Yano Y, Adachi Y. Elevated plasma levels of alpha-melanocyte stimulating hormone (alpha-MSH) are correlated with insulin resistance in obese men. Int J Obes (Lond) 2000; 24:1260-4. [PMID: 11093286 DOI: 10.1038/sj.ijo.0801400] [Citation(s) in RCA: 31] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE The role of alpha-melanocyte stimulating hormone (MSH) in obesity has been well-documented. However, circulating alpha-MSH concentrations in obese men and their relationship with clinical indicators of obesity and glucose metabolism have not as yet been evaluated. METHODS We measured the plasma concentrations of alpha-MSH in 15 obese and 15 non-obese male subjects. The relationship of the plasma concentrations of alpha-MSH with body mass index (BMI), body fat mass (measured by bioelectric impedance), body fat distribution (measured by computed tomography), insulin levels, insulin resistance (assessed by the glucose infusion rate (GIR) during an euglycemic hyperinsulinemic clamp study) and with the serum concentrations of leptin and TNF-alpha were also evaluated. RESULTS In obese men, the plasma alpha-MSH concentrations were significantly increased compared with those in non-obese men (P< 0.02). The plasma levels of alpha-MSH were positively correlated with BMI (r= 0.560, P< 0.05), fasting insulin levels (r=0.528, P< 0.05) and with visceral fat area (r=0.716, P<0.01), but negatively correlated with GIR (r= -0.625, P< 0.02) in obese male subjects. There were significant correlations between plasma concentrations of alpha-MSH and visceral fat area (r=0.631, P< 0.02), and GIR (r = -0.549, P< 0.05) in non-obese male subjects. Circulating concentrations of alpha-MSH were not significantly correlated with the serum concentrations of leptin and TNF-alpha in both obese and non-obese men. CONCLUSION Circulating concentrations of alpha-MSH are significantly increased and correlated with insulin resistance in obese men.
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Affiliation(s)
- A Katsuki
- Third Department of Internal Medicine, Mie University School of Medicine, Japan.
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Ito K, Katsuki A, Furuta M, Fujii M, Tsuchihashi K, Hori Y, Yano Y, Sumida Y, Adachi Y. Insulin sensitivity is not affected by mutation of codon 972 of the human IRS-1 gene. Horm Res 2000; 52:230-4. [PMID: 10844412 DOI: 10.1159/000023466] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We investigated the relationship of codon 972 polymorphism of the insulin receptor substrate-1 (IRS-1) gene with insulin resistance in the Japanese population. Among 130 patients with type-2 diabetes mellitus (DM), we identified 6 who were heterozygous for the Gly972Arg mutation. Among 144 healthy subjects, 6 were heterozygous and 1 was homozygous for the mutation. A hyperinsulinemic euglycemic clamp study was performed in 3 of 6 diabetic patients with the heterozygous Gly972Arg mutation and in 60 without it. Both groups showed almost the same levels of insulin sensitivity (glucose infusion rate, GIR = 50.2 +/- 3.0 vs. 51.3 +/- 12.1 micromol/kg/min). Similarly, there was no difference in insulin sensitivity between healthy subjects with and without the mutation using the homeostasis model assessment (HOMA index = 1.14 +/- 0.50 vs. 1.02 +/- 0.63). The frequency of the Gly972Arg allele was not increased in diabetic patients compared with control subjects even in aged (>50 years old) or obese (BMI >/=25) subjects. Among healthy subjects, we identified a 25-year-old male with the homozygous Gly972Arg allele. He was slightly obese (BMI = 25.5) but showed relatively high insulin sensitivity, almost equal to that of healthy subjects without the mutation (GIR = 67.2 vs. 71.8 +/- 22.0 micromol/kg/min). Because the GIR in healthy subjects was significantly higher compared with that in type-2 DM patients, we speculate that another genetic or environmental factor producing a more deleterious effect on insulin sensitivity may exist in diabetic patients. We conclude that this gene abnormality does not play a role in the pathogenesis of insulin resistance and type-2 DM.
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Affiliation(s)
- K Ito
- Third Department of Internal Medicine, Mie University School of Medicine, Mie, Japan
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Katsuki A, Sumida Y, Murata K, Furuta M, Araki-Sasaki R, Tsuchihashi K, Hori Y, Yano Y, Gabazza EC, Adachi Y. Troglitazone reduces plasma levels of tumour necrosis factor-alpha in obese patients with type 2 diabetes. Diabetes Obes Metab 2000; 2:189-91. [PMID: 11220554 DOI: 10.1046/j.1463-1326.2000.00072.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [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] [Indexed: 11/20/2022]
Abstract
We evaluated the effect of troglitazone (given orally 400 mg/day) on glucose intolerance and on the plasma levels of tumour necrosis factor-alpha (TNF-alpha) in 12 obese patients with type 2 diabetes for 12 weeks. Troglitazone significantly decreased fasting plasma glucose, serum C-peptide, serum insulin and HbA1c levels. Plasma levels of TNF-alpha were significantly reduced by troglitazone administered for 8 and 12 weeks. Troglitazone administration significantly improved insulin resistance, but did not affect pancreatic beta-cell function as evaluated by the homeostasis model assessment (HOMA). In the present study, we reported for the first time that troglitazone administration significantly reduces plasma levels of TNF-alpha in obese patients with type 2 diabetes.
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Affiliation(s)
- A Katsuki
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan. katuki-a-@clin.medic.mie-u.ac.jp
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Tanino H, Shimohama S, Sasaki Y, Sumida Y, Fujimoto S. Increase in phospholipase C-delta1 protein levels in aluminum-treated rat brains. Biochem Biophys Res Commun 2000; 271:620-5. [PMID: 10814511 DOI: 10.1006/bbrc.2000.2679] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The effect of administration of aluminum to rats on the level of three phospholipase C (PLC) isozymes (beta1, gamma1, and delta1) was assessed in a variety of brain tissues. After exposure to aluminum, a statistically significant increase in malondialdehyde, an index of lipid peroxidation, was observed. In addition, there was a significant reduction in the catalytic activity of low molecular weight phosphotyrosine phosphatase, which loses its activity during oxidative stress. This suggests that oxidative stress is induced in brain tissues exposed to aluminum. The protein level of PLC-delta1, but not that of PLC-beta1 or -gamma1, was significantly increased in brains where oxidative stress had been induced. The total PLC activity in aluminum-treated rat brains was significantly higher than that in control brains. These results suggest that PLC-delta1 protein levels in brain tissues are increased by the induction of oxidative stress, giving an explanation for its up-regulation in Alzheimer's disease.
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Affiliation(s)
- H Tanino
- Department of Environmental Biochemistry, Kyoto Pharmaceutical University, 5 Nakauchi-cyo, Kyoto, Misasagi, Yamashinaku, 607-8414, Japan
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Nanashima A, Yamaguchi H, Nakagoe T, Matsuo S, Sumida Y, Tsuji T, Sawai T, Yamaguchi E, Yasutake T, Ayabe H. High serum concentrations of sialyl Tn antigen in carcinomas of the biliary tract and pancreas. J Hepatobiliary Pancreat Surg 2000; 6:391-5. [PMID: 10664288 DOI: 10.1007/s005340050137] [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] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Sialyl-Tn (STn) antigen is a cancer-associated carbohydrate antigen expressed in cancers of the digestive tract. In the present study, we compared the serum level of STn antigen in 14 patients with benign diseases of the biliary tract and pancreas, 15 patients with bile duct cancers, and 9 patients with cancer of the pancreas. High levels of serum STn (>45 U/ml) were frequently detected in patients with carcinoma of the biliary tract (53.3%) or pancreas (55.6%), compared with the detection of high levels in those with benign diseases (14.3%; P < 0.05). Serum levels of STn did not correlate with the presence of jaundice, cholangitis, or pancreatitis, or with the level of carcinoembryonic antigen (CEA) or carbohydrate antigen (CA) 19-9. In cancer tissues, the expression of STn antigen detected by immunostaining correlated significantly with serum STn (P < 0.05). Our results indicate that measurement of serum STn level may be potentially useful for the diagnosis of carcinomas of the biliary tract and pancreas, particularly when combined with other tumor markers such as CEA or CA19-9.
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Affiliation(s)
- A Nanashima
- The First Department of Surgery, Nagasaki University School of Medicine, 1-7-1 Sakamoto, Nagasaki, Nagasaki 852, Japan
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Mori Y, Kaname H, Sumida Y, Tanaka S, Kubo C, Tashiro N, Nomoto K. Changes in the leukocyte distribution and surface expression of adhesion molecules accompanied with hypothalamically induced restlessness in the cat. Neuroimmunomodulation 2000; 7:135-46. [PMID: 10754401 DOI: 10.1159/000026431] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
One type of emotional behavior called restlessness occurs when the anteromedial hypothalamus is stimulated in cats. We examined the changes in the distribution and surface expression of adhesion molecules in leukocytes accompanied with restlessness. Mature female cats were used for this study. The cats were stimulated with 60 Hz sine wave train pulses (20-90 microA, 10 s in duration, at 5-min intervals) for 60 min. Samples of blood were collected from 30 min before stimulation up to several hours after the final stimulation. The number of granulocytes increased just after stimulation, while at the same time the expression of L-selectin decreased. On the other hand, the number of CD4+ and CD8+ T lymphocytes decreased at 1-2 h after the end of the stimulation, while the expression of L-selectin increased. In addition, the expression of LFA-1 and VLA-4 did not change. These data suggest that hypothalamically elicited restlessness is thus accompanied by a leukocyte distribution change, which might be mediated by changes in the expression of L-selectin on leukocytes. Plasma cortisol increased during stimulation in restlessness. However, during in vitro culture experiments, cortisol did not alter the expression of leukocyte L-selectin which thus indicated that cortisol does not directly affect the surface expression of L-selectin. These results thus suggest that hypothalamically induced restlessness is a useful stress model for psychoneuroimmunological studies.
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Affiliation(s)
- Y Mori
- Department of Neuropsychiatry, Faculty of Medicine, Kyushu University, Fukuoka City, Japan.
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Nakashima T, Sumida Y, Yoh T, Kakisaka Y, Nakajima Y, Ishikawa H, Mitsuyoshi H, Kashima K, Nakamura H, Yodoi J. Thioredoxin levels in the sera of untreated viral hepatitis patients and those treated with glycyrrhizin or ursodeoxycholic acid. Antioxid Redox Signal 2000; 2:687-94. [PMID: 11213474 DOI: 10.1089/ars.2000.2.4-687] [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: 01/07/2023]
Abstract
Thioredoxin (TRX), a thiol-containing protein, is induced by various oxidative stresses. Serum TRX levels were measured with a sandwich enzyme-linked immunosorbent assay kit in 210 hepatitis C virus (HCV)-infected patients, 39 hepatitis B virus (HBV)-infected patients, and 17 healthy volunteers. The effects of hepatoprotective drugs on TRX levels were also examined. The median TRX levels were significantly higher in HCV-infected patients than in controls (34.2 vs. 23.5 ng/ml, respectively; p < 0.005), but were not elevated in HBV-infected patients (26.7 ng/ml). The TRX levels were significantly correlated with serum lipid peroxide levels and indocyanine green exclusion test values, and were markedly decreased following treatment with Stronger Neo-Minophagen C or ursodeoxycholic acid. In conclusion serum TRX levels, a marker of oxidative stress, were higher in patients with HCV infection than those with HBV infection and healthy controls. The therapeutic efficacy of hepatoprotective drugs may be connected with the decrease in oxidative stress in hepatitis patients.
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Affiliation(s)
- T Nakashima
- Third Department of Internal Medicine, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
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Nakashima T, Inaba K, Nakajima Y, Yoh T, Sumida Y, Ishikawa H, Mitsuyoshi H, Shima T, Kashima K. Transfer of nitric oxide from the liver to erythrocytes--an ESR study using nitroglycerin-treated mice. Free Radic Res 1999; 31:493-502. [PMID: 10630673 DOI: 10.1080/10715769900301061] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Nitric oxide (NO) formation in the liver and blood of the mouse following intraperitoneal treatment with nitroglycerin (glycerol trinitrate, GTN) was determined using electron spin resonance (ESR) spectroscopy. ESR signals of heme-NO complexes were detected at maximum levels within 5 min in the liver, but increased to a maximum level about 15-30 min later in the blood. GTN is not metabolized to release NO in vitro in the blood of the mouse. The hepatic microsomes which showed the heme-NO complexes ESR signals were incubated with mouse erythrocytes, with the result that a hemoglobin-NO signal was obtained from the erythrocytes. The activities of microsomal cytochrome P-450, the hepatic level of glutathione, and the reduction rate of nitroxide radicals in the in vivo liver, measured using L-band ESR spectroscopy, were temporarily decreased following GTN administration. In conclusion, NO in the liver could be scavenged by circulating erythrocytes, which might minimize NO-induced liver damage.
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Affiliation(s)
- T Nakashima
- Third Department of Internal Medicine, Kyoto Prefectural University of Medicine, Japan.
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Yoshimura M, Matsumoto K, Watanabe M, Yamashita N, Sanuki E, Sumida Y. Influence of exercise on QT dispersion in hypertensive patients with left ventricular hypertrophy without coronary artery disease. Jpn Circ J 1999; 63:881-4. [PMID: 10598895 DOI: 10.1253/jcj.63.881] [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: 11/09/2022]
Abstract
In hypertensive patients with left ventricular hypertrophy (LVH), the influence of exercise on the regional variations in ventricular repolarization is not well understood. The present study compared dispersions of QT and QT apex (QTD and QTaD), which are indices of regional variations in ventricular repolarization, between hypertensive patients with echocardiographic evidence of LVH and those without LVH. Seventy essential hypertensive patients underwent a modified Bruce protocol exercise test, and QTD and QTaD were measured at rest and at peak exercise level. All subjects had undergone coronary angiography and did not have coronary artery disease. None of them showed ST-segment depression during or after exercise. There were 20 patients with LVH and 50 patients without LVH. The QTD and QTaD at rest were not different between the patients with LVH and those without LVH (56+/-32 vs 57+/-28 ms, 52+/-20 vs 49+/-23 ms). At peak exercise level, QTaD was significantly decreased compared with the baseline in hypertensive patients without LVH (49+/-23 to 42+/-16ms, p<0.05), whereas in patients with LVH QTaD increased (52+/-20 to 67+/-17ms, p<0.05). QTaD at peak exercise level was positively correlated with the left ventricular mass index (r=0.357, p=0.0024). These data were unchanged after correction for heart rate using Bazett's equation. In conclusion, QTaD increased after exercise in hypertensive patients with LVH. Inhomogeneity of repolarization is induced by exercise stress in hypertensives with LVH.
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Affiliation(s)
- M Yoshimura
- Department of Cardiology and Internal Medicine, Saiseikai Hiroshima Hospital, Japan.
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Nanashima A, Yamaguchi H, Matsuo S, Sumida Y, Tsuji T, Sawai T, Yasutake T, Nakagoe T, Ayabe H. Expression of multidrug resistance protein in metastatic colorectal carcinomas. J Gastroenterol 1999; 34:582-8. [PMID: 10535485 DOI: 10.1007/s005350050376] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
To clarify the relationship between multidrug resistance protein (MRP) and clinicopathologic features, the influence of adjuvant chemotherapy, and prognosis of patients who underwent resection of metastatic liver carcinomas originating from colorectal carcinomas, we examined the expression of MRP in tumor tissues by immunostaining. Specimens of 38 primary colorectal tumors and 44 metastatic liver tumors of colorectal origin were examined (metastatic group). We also examined 28 nonmetastatic colorectal carcinomas. The percentages of nonmetastatic tumors and of primary and metastatic tumors of the metastasis group that expressed MRP were similar. MRP expression in primary and metastatic tumors did not correlate with any clinicopathologic features. The use of adjuvant chemotherapy after operation for primary colorectal carcinomas was associated with increased MRP expression among metastatic liver tumors. Expression of MRP in the tumor did not influence the prognosis or survival rate after resection of primary or metastatic tumors. Our data suggest that MRP expression in metachronous liver metastases from colorectal carcinomas may be induced by administration of anticancer drugs but is not associated with clinicopathologic features of the tumor, liver metastasis, or prognosis.
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Affiliation(s)
- A Nanashima
- First Department of Surgery, Nagasaki University School of Medicine, Japan
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