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Tominaga S, Yoshioka H, Yokota S, Tsukiboshi Y, Suzui M, Nagai M, Hara H, Maeda T, Miura N. Copper-induced diurnal hepatic toxicity is associated with Cry2 and Per1 in mice. Environ Health Prev Med 2023; 28:78. [PMID: 38092388 PMCID: PMC10739358 DOI: 10.1265/ehpm.23-00205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 11/07/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND This study aimed to investigate diurnal variations in copper-induced hepatic toxicity and the molecular mechanisms underlying this chronotoxicity. METHODS Male C57BL/6J mice were intraperitoneally injected with copper chloride (CuCl2) at zeitgeber time 2 (ZT2) or 14 (ZT14), twice per week for 5 or 8 weeks. Seventy-two hours after the final CuCl2 injection, the mice were euthanized, and plasma samples were collected. The livers and kidneys were collected and weighed. In vitro experiments were performed to assess cell viability and fluctuations in clock gene expression levels in Hepa1-6 cells after CuCl2 treatment. We examined copper homeostasis- and apoptosis-related genes under clock genes overexpression. RESULTS Repeated CuCl2 administration for 8 weeks resulted in more severe toxicity at ZT14 compared to ZT2. CuCl2 administration at ZT14 elevated plasma aspartate aminotransferase, hepatic tumor necrosis factor-α, and interleukin-6 for 5 weeks, whereas the toxic effects of CuCl2 administration at ZT2 were weaker. Moreover, CuCl2 treatment inhibited Hepa1-6 cell viability in a dose-dependent manner. We observed increased expression of three clock genes (Ciart, Cry2, and Per1) after CuCl2 treatment. Among them, overexpression of Cry2 and Per1 accelerated CuCl2-induced inhibition of Hepa1-6 cell viability. Moreover, we found that the overexpression of Cry2 and Per1 regulates cleaved caspase-3 by modulating the copper transporter genes ATP7B and CTR1. CONCLUSION These results suggest that CuCl2-induced diurnal toxicity is associated with Cry2 and Per1 expression through the regulation of copper transporter genes in mice.
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Affiliation(s)
- Sarah Tominaga
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyamaku, Nagoya, Aichi 463-8521, Japan
- Department of Neurotoxicology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
| | - Hiroki Yoshioka
- Faculty of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu 509-0293, Japan
| | - Satoshi Yokota
- Division of Cellular and Molecular Toxicology, Center for Biological Safety and Research, National Institute of Health Sciences, 3-25-26 Tono-machi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Yosuke Tsukiboshi
- Faculty of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu 509-0293, Japan
| | - Masumi Suzui
- Department of Neurotoxicology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
| | - Makoto Nagai
- Graduate School of Health and Medicine, Gifu University of Medical Science, 795-1 Nagamine Ichihiraga, Seki, Gifu 501-3892, Japan
| | - Hirokazu Hara
- Laboratory of Clinical Pharmaceutics, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, Gifu 501-1196, Japan
| | - Tohru Maeda
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyamaku, Nagoya, Aichi 463-8521, Japan
| | - Nobuhiko Miura
- Department of Health Science, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, Kanagawa 245-2006, Japan
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Yoshioka H, Yokota S, Tominaga S, Tsukiboshi Y, Suzui M, Shinohara Y, Yoshikawa M, Sasaki H, Sasaki N, Maeda T, Miura N. Involvement of Bmal1 and Clock in Bromobenzene Metabolite-Induced Diurnal Renal Toxicity. Biol Pharm Bull 2023; 46:824-829. [PMID: 37258148 DOI: 10.1248/bpb.b23-00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Circadian rhythms are endogenous oscillators that regulate 24 h behavioral and physiological processes. Our previous investigation demonstrated that bromobenzene metabolite (4-bromocatechol: 4-BrCA) exhibited chronotoxicity (i.e., the nephrotoxicity induced by 4-BrCA was observed during the dark phase, while not observed at light phase in mice). However, the molecular mechanism is still unknown. The aim of the present study is to investigate the cellular molecule(s) involved in the 4-BrCA-induced nephrotoxicity using mouse renal cortex tubular cell lines (MuRTE61 cells). We found that 4-BrCA showed dose dependent (0.01-1 mM) cell proliferation defect in MuRTE61 cells. By treating with 0.03 mM 4-BrCA, we demonstrated that major clock genes (Bmal1, Clock, Cry1, Cry2, Per1, and Per2) were significantly downregulated. Interestingly, the expression levels of two genes, Bmal1 and Clock, continued to decrease after 3 h of treatment with 4-BrCA, while Cry1, Per1, and Per2 were unchanged until 24 h of treatment. Moreover, BMAL1 and CLOCK levels are higher at light phase. We speculated that BMAL1 and CLOCK might function defensively against 4-BrCA-induced nephrotoxicity since the expression levels of Bmal1 and Clock were rapidly decreased. Finally, overexpression of Bmal1 and Clock restored 4-BrCA-induced cell proliferation defect in MuRTE61 cells. Taken together, our results suggest that Bmal1 and Clock have protective roles against 4-BrCA-induced nephrotoxicity.
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Affiliation(s)
| | - Satoshi Yokota
- Division of Cellular and Molecular Toxicology, Center for Biological Safety and Research, National Institute of Health Sciences
| | - Sarah Tominaga
- Department of Neurotoxicology, Nagoya City University Graduate School of Medical Sciences
- College of Pharmacy, Kinjo Gakuin University
| | | | - Masumi Suzui
- Department of Neurotoxicology, Nagoya City University Graduate School of Medical Sciences
| | | | | | - Hayato Sasaki
- Laboratory of Animal Science and Medicine, School of Veterinary Medicine, Kitasato University
| | - Nobuya Sasaki
- Laboratory of Animal Science and Medicine, School of Veterinary Medicine, Kitasato University
| | - Tohru Maeda
- College of Pharmacy, Kinjo Gakuin University
| | - Nobuhiko Miura
- Department of Health Science, Yokohama University of Pharmacy
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Yoshioka H, Tominaga S, Suzui M, Shinohara Y, Maeda T, Miura N. Involvement of <i>Npas2</i> and <i>Per2</i> modifications in zinc-induced acute diurnal toxicity in mice. J Toxicol Sci 2022; 47:547-553. [DOI: 10.2131/jts.47.547] [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: 12/03/2022]
Affiliation(s)
| | - Sarah Tominaga
- Department of Neurotoxicology, Nagoya City University Graduate School of Medical Sciences
| | - Masumi Suzui
- Department of Neurotoxicology, Nagoya City University Graduate School of Medical Sciences
| | | | - Tohru Maeda
- Department of Pharmacy, Kinjo Gakuin University
| | - Nobuhiko Miura
- Department of Health Science, Yokohoma University of Pharmacy
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Ichimaru Y, Kanaeda N, Tominaga S, Suzui M, Maeda T, Fujii H, Nakao M, Yoshioka H. Sasa veitchii extract induces anticancer effects via inhibition of cyclin D1 expression in MCF-7 cells. Nagoya J Med Sci 2021; 82:509-518. [PMID: 33132435 PMCID: PMC7548257 DOI: 10.18999/nagjms.82.3.509] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Sasa veitchii and other Sasa species are traditional medicinal herbs belonging to a group of Japanese bamboos collectively called Kumazasa, and these species possess the potential for a wide variety of uses. The present study aimed to elucidate the anticancer mechanisms exerted by S. veitchii extract (SE) against a human breast cancer cell line, MCF-7 cells. Freeze-dried Sunchlon® was used as the SE, and cell proliferation activity was measured using the [3H]-thymidine incorporation assay. Induction of apoptosis was assessed via Annexin V and caspase-3 fluorescent staining, the induction of necrosis was measured via propidium iodide staining, and cell cycle-related protein expression was determined using western blotting. The IC50 value of the SE was 7.7 μg/mL in MCF-7 cells. Although the primary active ingredient in Sunchlon® is sodium copper chlorophyllin (0.25%), the present results indicated that ingredients other than SCC exert anti-cancer activities (the IC50 value of SCC was 715 μg/mL), and late apoptosis or necrosis was induced in an SE dose-dependent manner. The expression levels of cyclin D1 and Cdk6 were decreased after SE treatment, and there was no change in the Cdk1/2 expression levels. Additionally, the expression of the necrosis-related cell death indicators RIP1 and RIP3 was increased in response to high-dose SE treatments, and this was indicative of cells preparing for programmed cell death. SE induces cell death in MCF-7 cells via the inhibition of cyclin D1 expression at low concentrations, and this extract induces programmed necrosis (necroptosis) by potentiating RIP1/RIP3 expression.
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Affiliation(s)
| | | | - Sarah Tominaga
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Japan
| | - Masumi Suzui
- Department of Neurotoxicology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tohru Maeda
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Japan
| | - Hirohisa Fujii
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Japan
| | - Makoto Nakao
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Japan
| | - Hiroki Yoshioka
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Japan.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, School of Dentistry, Houston, USA
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Yoshioka H, Tominaga S, Nishikawa M, Shinohara Y, Nakao M, Yoshikawa M, Maeda T, Miura N. Different Renal Chronotoxicity of Bromobenzene and Its Intermediate Metabolites in Mice. Biol Pharm Bull 2021; 44:150-153. [PMID: 33390544 DOI: 10.1248/bpb.b20-00694] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bromobenzene (BB) is known to pose a serious threat to human health. We previously demonstrated that BB showed chronotoxicity, that is, daily fluctuations in the severity of hepatotoxicity induced in mice. Although BB showed mild nephrotoxicity, a daily fluctuation was not observed in this toxicity. This might be attributed to the fact that BB-induced chronotoxicity is observed only in the liver and not in the kidneys and that the damage caused by BB is prominent in the liver, masking the daily fluctuation in nephrotoxicity. To confirm these two possibilities, we examined the daily fluctuations in nephrotoxicity due to BB intermediate metabolites that target the kidneys: 3-bromophenol, bromohydroquinone, and 4-bromocatechol. Mice were injected with 3-bromophenol, bromohydroquinone, or 4-bromocatechol intraperitoneally at six different time points in a day (zeitgeber time (ZT): ZT2, ZT6, ZT10, ZT14, ZT18, or ZT22). Mortality was monitored for 7 d post-injection. Mice were more sensitive to the acute toxicity of these metabolites around at ZT14 (dark-phase) exposure than around at ZT2 (light-phase) exposure. Furthermore, mice administered with a non-lethal dose of 4-bromocatechol showed significant increases in the levels of plasma blood urea nitrogen and renal malondialdehyde at ZT14 exposure. Moreover, glutathione peroxidase-4, a ferroptosis indicator, was attenuated at ZT14 exposure. These results indicate the toxicity of BB metabolites was higher during the dark-phase exposure, and demonstrate the reason why the diurnal variation of nephrotoxicity by BB was not observed in our previous report is that renal damage was masked due to severe hepatic damage.
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Affiliation(s)
- Hiroki Yoshioka
- College of Pharmacy, Kinjo Gakuin University.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, School of Dentistry
| | | | | | | | | | | | - Tohru Maeda
- College of Pharmacy, Kinjo Gakuin University
| | - Nobuhiko Miura
- Department of Health Science, Yokohoma University of Pharmacy
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Abstract
The aim of the present study was to investigate the "chronotoxicity" of streptomycin (SM) in relation to its circadian periodicity. Male ICR mice were injected intraperitoneally with SM (780 mg/kg, one shot) one of six time points throughout the day. Mortality was monitored until 14 d after the injection and clearly differed depending on the timing of the injection (i.e., mice were more sensitive to injection during the dark phase). Moreover, when mice were administered with non-lethal doses of SM (550 mg/kg, every 24 h for 3 d, in the light phase or dark phase), the levels of nephrotoxicity indicators (blood urea nitrogen and renal levels of malondialdehyde and cyclooxygenase-2) were significantly increased by the injection in the dark phase, but not in the light phase. These results suggested that SM showed clear chronotoxicity. Our current data indicated that chronotoxicology may provide valuable information on the importance of injection timings for evaluations of toxicity and undesirable side effects.
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Affiliation(s)
| | | | | | - Gi-Wook Hwang
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Tohru Maeda
- College of Pharmacy, Kinjo Gakuin University
| | - Nobuhiko Miura
- Laboratory of Environmental and Molecular Toxicology, Department of Health Science, Yokohoma University of Pharmacy
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Yoshioka H, Hirose Y, Ohishi R, Tominaga S, Torii-Goto A, Park SJ, Miura N, Yoshikawa M. Diurnal Variation of Sitagliptin-Induced Pharmacological Effects in C57BL/6J Mice. Biol Pharm Bull 2019; 42:1562-1568. [PMID: 31474716 DOI: 10.1248/bpb.b19-00367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chronopharmacology is the study of the varying responses of drugs to changes in biological timing and endogenous periodicities. The dipeptidyl peptidase-4 inhibitor sitagliptin is a globally prescribed anti-hyperglycemic drug. Although dipeptidyl peptidase-4 inhibitors are usually administered once, the specific intake time is generally not mentioned. Therefore, this study aimed at investigating the diurnal effects of sitagliptin-induced anti-hyperglycemia in high-fat diet (HFD)-induced obesity in mice. Five-week-old male C57BL/6J mice were fed normal (control) diet or HFD for 10 weeks. During the last 2 weeks, the mice were administered saline or sitagliptin (10 mg/kg, per os) in the light or dark phase, respectively. At the end of the experiment, the mice were euthanized after an 18 h fasting period, and plasma and tissue samples (liver, kidney, and epididymal white adipose tissues) were collected, or the oral glucose tolerance test was performed. Sitagliptin administration in the light phase significantly decreased plasma glucose levels, insulin levels, hepatic steatosis, and restored the glucose tolerance compared with the HFD group. In contrast, these parameters remained unchanged in the dark phase-treated mice. Our data therefore suggests that sitagliptin portrays definite chronopharmacology, which may provide valuable information on the importance of drug administration timing for maximum pharmacological effects.
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Affiliation(s)
| | - Yui Hirose
- College of Pharmacy, Kinjo Gakuin University
| | | | | | | | - Sang Jun Park
- College of Human and Environment, Kinjo Gakuin University
| | - Nobuhiko Miura
- Laboratory of Environmental and Molecular Toxicology, Department of Health Science, Yokohoma University of Pharmacy
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Yoshioka H, Fukaya S, Tominaga S, Nagatsu A, Miura N, Maeda T. Protective effect of the Kampo formula “Juzen-taiho-to” on isoniazid- and rifampicin-induced hepatotoxicity in mice. ACTA ACUST UNITED AC 2019. [DOI: 10.2131/fts.6.25] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Hiroki Yoshioka
- Department of Pharmacy, College of Pharmacy, Kinjo Gakuin University
| | - Shiori Fukaya
- Department of Pharmacy, College of Pharmacy, Kinjo Gakuin University
| | - Sarah Tominaga
- Department of Pharmacy, College of Pharmacy, Kinjo Gakuin University
| | - Akito Nagatsu
- Department of Pharmacy, College of Pharmacy, Kinjo Gakuin University
| | - Nobuhiko Miura
- Division of Health Effects Research, Japan National Institute of Occupational Safety and Health
| | - Tohru Maeda
- Department of Pharmacy, College of Pharmacy, Kinjo Gakuin University
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Gnatiuc L, Herrington WG, Halsey J, Tuomilehto J, Fang X, Kim HC, De Bacquer D, Dobson AJ, Criqui MH, Jacobs DR, Leon DA, Peters SAE, Ueshima H, Sherliker P, Peto R, Collins R, Huxley RR, Emberson JR, Woodward M, Lewington S, Aoki N, Arima H, Arnesen E, Aromaa A, Assmann G, Bachman DL, Baigent C, Bartholomew H, Benetos A, Bengtsson C, Bennett D, Björkelund C, Blackburn H, Bonaa K, Boyle E, Broadhurst R, Carstensen J, Chambless L, Chen Z, Chew SK, Clarke R, Cox C, Curb JD, D'Agostino R, Date C, Davey Smith G, De Backer G, Dhaliwal SS, Duan XF, Ducimetiere P, Duffy S, Eliassen H, Elwood P, Empana J, Garcia-Palmieri MH, Gazes P, Giles GG, Gillis C, Goldbourt U, Gu DF, Guasch-Ferre M, Guize L, Haheim L, Hart C, Hashimoto S, Hashimoto T, Heng D, Hjermann I, Ho SC, Hobbs M, Hole D, Holme I, Horibe H, Hozawa A, Hu F, Hughes K, Iida M, Imai K, Imai Y, Iso H, Jackson R, Jamrozik K, Jee SH, Jensen G, Jiang CQ, Johansen NB, Jorgensen T, Jousilahti P, Kagaya M, Keil J, Keller J, Kim IS, Kita Y, Kitamura A, Kiyohara Y, Knekt P, Knuiman M, Kornitzer M, Kromhout D, Kronmal R, Lam TH, Law M, Lee J, Leren P, Levy D, Li YH, Lissner L, Luepker R, Luszcz M, MacMahon S, Maegawa H, Marmot M, Matsutani Y, Meade T, Morris J, Morris R, Murayama T, Naito Y, Nakachi K, Nakamura M, Nakayama T, Neaton J, Nietert PJ, Nishimoto Y, Norton R, Nozaki A, Ohkubo T, Okayama A, Pan WH, Puska P, Qizilbash N, Reunanen A, Rimm E, Rodgers A, Saitoh S, Sakata K, Sato S, Schnohr P, Schulte H, Selmer R, Sharp D, Shifu X, Shimamoto K, Shipley M, Silbershatz H, Sorlie P, Sritara P, Suh I, Sutherland SE, Sweetnam P, Tamakoshi A, Tanaka H, Thomsen T, Tominaga S, Tomita M, Törnberg S, Tunstall-Pedoe H, Tverdal A, Ueshima H, Vartiainen E, Wald N, Wannamethee SG, Welborn TA, Whincup P, Whitlock G, Willett W, Woo J, Wu ZL, Yao SX, Yarnell J, Yokoyama T, Yoshiike N, Zhang XH. Sex-specific relevance of diabetes to occlusive vascular and other mortality: a collaborative meta-analysis of individual data from 980 793 adults from 68 prospective studies. Lancet Diabetes Endocrinol 2018; 6:538-546. [PMID: 29752194 PMCID: PMC6008496 DOI: 10.1016/s2213-8587(18)30079-2] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 02/20/2018] [Accepted: 02/26/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Several studies have shown that diabetes confers a higher relative risk of vascular mortality among women than among men, but whether this increased relative risk in women exists across age groups and within defined levels of other risk factors is uncertain. We aimed to determine whether differences in established risk factors, such as blood pressure, BMI, smoking, and cholesterol, explain the higher relative risks of vascular mortality among women than among men. METHODS In our meta-analysis, we obtained individual participant-level data from studies included in the Prospective Studies Collaboration and the Asia Pacific Cohort Studies Collaboration that had obtained baseline information on age, sex, diabetes, total cholesterol, blood pressure, tobacco use, height, and weight. Data on causes of death were obtained from medical death certificates. We used Cox regression models to assess the relevance of diabetes (any type) to occlusive vascular mortality (ischaemic heart disease, ischaemic stroke, or other atherosclerotic deaths) by age, sex, and other major vascular risk factors, and to assess whether the associations of blood pressure, total cholesterol, and body-mass index (BMI) to occlusive vascular mortality are modified by diabetes. RESULTS Individual participant-level data were analysed from 980 793 adults. During 9·8 million person-years of follow-up, among participants aged between 35 and 89 years, 19 686 (25·6%) of 76 965 deaths were attributed to occlusive vascular disease. After controlling for major vascular risk factors, diabetes roughly doubled occlusive vascular mortality risk among men (death rate ratio [RR] 2·10, 95% CI 1·97-2·24) and tripled risk among women (3·00, 2·71-3·33; χ2 test for heterogeneity p<0·0001). For both sexes combined, the occlusive vascular death RRs were higher in younger individuals (aged 35-59 years: 2·60, 2·30-2·94) than in older individuals (aged 70-89 years: 2·01, 1·85-2·19; p=0·0001 for trend across age groups), and, across age groups, the death RRs were higher among women than among men. Therefore, women aged 35-59 years had the highest death RR across all age and sex groups (5·55, 4·15-7·44). However, since underlying confounder-adjusted occlusive vascular mortality rates at any age were higher in men than in women, the adjusted absolute excess occlusive vascular mortality associated with diabetes was similar for men and women. At ages 35-59 years, the excess absolute risk was 0·05% (95% CI 0·03-0·07) per year in women compared with 0·08% (0·05-0·10) per year in men; the corresponding excess at ages 70-89 years was 1·08% (0·84-1·32) per year in women and 0·91% (0·77-1·05) per year in men. Total cholesterol, blood pressure, and BMI each showed continuous log-linear associations with occlusive vascular mortality that were similar among individuals with and without diabetes across both sexes. INTERPRETATION Independent of other major vascular risk factors, diabetes substantially increased vascular risk in both men and women. Lifestyle changes to reduce smoking and obesity and use of cost-effective drugs that target major vascular risks (eg, statins and antihypertensive drugs) are important in both men and women with diabetes, but might not reduce the relative excess risk of occlusive vascular disease in women with diabetes, which remains unexplained. FUNDING UK Medical Research Council, British Heart Foundation, Cancer Research UK, European Union BIOMED programme, and National Institute on Aging (US National Institutes of Health).
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Jin M, Komine M, Tsuda H, Tominaga S, Ohtsuki M. 428 The double-stranded RNA induces IL-33 promoter activation through TLR3-IRF3 pathway, depending on EGF receptor activation in normal human epidermal keratinocytes. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tsuda H, Oshio T, Komine M, Tominaga S, Ohtsuki M. 900 Nuclear IL-33 promotes wound healing by sustaining cell division and motility through regulating actin filament re-construction. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Jin M, Komine M, Tsuda H, Oshio T, Tominaga S, Ohtsuki M. 482 IL-33 is expressed in the lesional skin of herpes virus infection, but not of human papilloma virus infection. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yamagishi K, Iso H, Kokubo Y, Saito I, Yatsuya H, Ishihara J, Inoue M, Tsugane S, Sobue T, Hanaoka T, Ogata J, Baba S, Mannami T, Okayama A, K. Y, Miyakawa K, Saito F, Koizumi A, Sano Y, Hashimoto I, Ikuta T, Tanaba Y, Miyajima Y, Suzuki N, Nagasawa S, Furusugi Y, Nagai N, Sanada H, Hatayama Y, Kobayashi F, Uchino H, Shirai Y, Kondo T, Sasaki R, Watanabe Y, Miyagawa Y, Kobayashi Y, Machida M, Kishimoto Y, Takara E, Fukuyama T, Kinjo M, Irei M, Sakiyama H, Imoto K, Yazawa H, Seo T, Seiko A, Ito F, Shoji F, Saito R, Murata A, Minato K, Motegi K, Fujieda T, Abe T, Katagiri M, Suzuki M, Matsui K, Doi M, Terao A, Ishikawa Y, Tagami T, Doi H, Urata M, Okamoto N, Ide F, Sueta H, Sakiyama H, Onga N, Takaesu H, Uehara M, Horii F, Asano I, Yamaguchi H, Aoki K, Maruyama S, Ichii M, Takano M, Matsushima S, Natsukawa S, Akabane M, Konishi M, Okada K, Honda Y, Sakurai KYS, Tsuchiya N, Sugimura H, Tsubono Y, Kabuto M, Tominaga S, Iida M, Ajiki W, Ioka A, Sato S, Yasuda N, Nakamura K, Kono S, Suzuki K, Takashima Y, Yoshida M, Maruyama E, Yamaguchi M, Matsumura Y, Sasaki S, Watanabe S, Kadowaki T, Noda M, Mizoue T, Kawaguchi Y, Shimizu H. Dietary intake of saturated fatty acids and incident stroke and coronary heart disease in Japanese communities: the JPHC Study. Eur Heart J 2013; 34:1225-32. [DOI: 10.1093/eurheartj/eht043] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Takeshima T, Kikui S, Yamashita S, Tominaga Y, Tominaga S. Migraine days and body mass index (BMI) in a series of Japanese migraineurs. J Headache Pain 2013. [PMCID: PMC3620004 DOI: 10.1186/1129-2377-14-s1-p127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Takeshima T, Kikui S, Yamashita S, Tominaga Y, Tominaga S. Migraine days and body mass index (BMI) in a series of Japanese migraineurs. J Headache Pain 2013. [DOI: 10.1186/1129-2377-1-s1-p127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Ko R, Sasaki S, Namba Y, Ishimori A, Yoshioka M, Yoshioka Y, Tominaga S, Takahashi K. Efficacy of Fexofenadine in Preventing Tyrosine Kinase Inhibitor (TKI)-Induced Interstitial Lung Disease. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32271-7] [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: 10/25/2022] Open
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17
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Tominaga S, Kotsuma Y. Effect of Memorial Sloan-Kettering Cancer Center (MSKCC) nomogram to avoid conventional axillary dissection of one node–metastasis Japanese patients with breast cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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18
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Sasaki S, Yoshioka Y, Ko R, Katsura Y, Namba Y, Koike K, Yoshioka M, Tominaga S. Diagnostic and therapeutic significance of the cerebrospinal fluid (CSF) EGFR mutation analysis for the patients with NSCLC suffering meningitis carcinomatosa harboring active EGFR mutation, after gefitinib therapy failure. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.10608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Yoshimura K, Kubo S, Yoneda H, Hasegawa H, Tominaga S, Yoshimine T. Removal of a cavernous hemangioma in the orbital apex via the endoscopic transnasal approach: a case report. ACTA ACUST UNITED AC 2010; 53:77-9. [PMID: 20533139 DOI: 10.1055/s-0030-1251984] [Citation(s) in RCA: 25] [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] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION The aim of this study is to describe the case of a cavernous hemangioma extending from the orbital apex to the pterygopalatine fossa that was completely removed via an endoscopic transnasal approach. CASE REPORT We report the case of a 48-year-old man who presented with right hemianopsia of the left eye. MRI revealed a 1.5 x 1.1 cm mass lesion extending from the infero-medial part of the left orbital apex to the pterygopalatine fossa. Removal of the lesion was performed via the endoscopic transnasal approach. Using this approach, a wide operative view of the entire extent of the lesion from the optic canal to the orbital apex and the pterygopalatine fossa was obtained, and complete removal of the lesion was performed safely. The pathological diagnosis was cavernous hemangioma. CONCLUSION The endoscopic transnasal approach is a safe, effective, and less invasive therapeutic modality for the removal of lesions extending from the infero-medial part of the left orbital apex to the pterygopalatine fossa. With appropriate patient selection, this approach improves access and visualization, and it enables performance of operative procedures with much less risk than the conventional microscopic transcranial or transfacial approaches.
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Affiliation(s)
- K Yoshimura
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka, Japan.
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20
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Ozaki C, Obata S, Yamanaka H, Tominaga S, Suzuki ST. The extracellular domains of E- and N-cadherin determine the scattered punctate localization in epithelial cells and the cytoplasmic domains modulate the localization. J Biochem 2010. [DOI: 10.1093/jb/mvq046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Uenoyama M, Ogata S, Nakanishi K, Kanazawa F, Hiroi S, Tominaga S, Seo A, Matsui T, Kawai T, Suzuki S. Protein kinase C mRNA and protein expressions in hypobaric hypoxia-induced cardiac hypertrophy in rats. Acta Physiol (Oxf) 2010; 198:431-40. [PMID: 19995357 DOI: 10.1111/j.1748-1716.2009.02064.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM Protein kinase C (PKC), cloned as a serine/threonine kinase, plays key roles in diverse intracellular signalling processes and in cardiovascular remodelling during pressure overload or volume overload. We looked for correlations between changes in PKC isoforms (levels and/or subcellular distributions) and cardiac remodelling during experimental hypobaric hypoxic environment (HHE)-induced pulmonary hypertension. METHODS To study the PKC system in the heart during HHE, 148 male Wistar rats were housed for up to 21 days in a chamber at the equivalent of 5500 m altitude level (10% O(2)). RESULTS At 14 or more days of exposure to HHE, pulmonary arterial pressure (PAP) was significantly increased. In the right ventricle (RV): (1) the expression of PKC-alpha protein in the cytosolic and membrane fractions was increased at 3-14 days and at 5-7 days of exposure respectively; (ii) the cytosolic expression of PKC-delta protein was increased at 1-5, 14 and 21 days of exposure; (3) the membrane expressions of the proteins were decreased at 14-21 (PKC-betaII), 14-21 (PKC-gamma), and 0.5-5 and 21 (PKC-epsilon) days of exposure; (4) the expression of the active form of PKC-alpha protein on the plasma membrane was increased at 3 days of exposure (based on semiquantitative analysis of the immunohistochemistry). In the left ventricle, the expressions of the PKC mRNAs, and of their cytosolic and membrane proteins, were almost unchanged. The above changes in PKC-alpha, which were strongly evident in the RV, occurred alongside the increase in PAP. CONCLUSION PKC-alpha may help to modulate the right ventricular hypertrophy caused by pulmonary hypertension in HHE.
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Affiliation(s)
- M Uenoyama
- National Defense Medical College Research Institute, Tokorozawa, Japan
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22
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Mato N, Fujii M, Hakamata Y, Kobayashi E, Sato A, Hayakawa M, Ohto-Ozaki H, Bando M, Ohno S, Tominaga S, Sugiyama Y. Interleukin-1 receptor-related protein ST2 suppresses the initial stage of bleomycin-induced lung injury. Eur Respir J 2009; 33:1415-28. [PMID: 19196821 DOI: 10.1183/09031936.00084307] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Acute lung injury has a range of causes, and occasionally leads to lethal respiratory failure. Despite advances in treatment, acute lung injury continues to have a high mortality rate, and thus a new therapeutic approach is needed. ST2 is an interleukin (IL)-1 receptor-related protein, and its expression is induced by various inflammatory responses. Recently, ST2 has been speculated to exert anti-inflammatory effects; therefore, we investigated the role of the ST2 in the murine model of acute lung injury. To elucidate the function of ST2 in vivo, mice that transiently overexpressed ST2 protein were prepared using the hydrodynamic gene transfer method, and lung injury was induced by intratracheal administration of bleomycin. In bleomycin-treated ST2-overexpressing mice, the increase of neutrophils in the bronchoalveolar lavage fluid (BALF) was markedly suppressed. Additionally, the levels of tumour necrosis factor-alpha and IL-6, as well as the concentration of albumin, in BALF were reduced compared with those of controls. Furthermore, the pulmonary architecture in ST2-overexpressing mice remained almost normal, and the survival rate was significantly improved. From these results, we concluded that ST2 has the potential to suppress the initial stage of acute lung injury, and therefore it may be a useful reagent for the treatment of acute lung injury.
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Affiliation(s)
- N Mato
- Dept of Medicine, Division of Pulmonary Medicine, Jichi Medical University, Shimotsuke-Shi, Tochigi , Japan
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23
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Uenoyama M, Ogata S, Nakanishi K, Kanazawa F, Hiroi S, Tominaga S, Kanatani Y, Seo A, Matsui T, Suzuki S. Osteopontin expression in normal and hypobaric hypoxia-exposed rats. Acta Physiol (Oxf) 2008; 193:291-301. [PMID: 18284657 DOI: 10.1111/j.1748-1716.2008.01844.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM Experimental pulmonary hypertension induced in a hypobaric hypoxic environment (HHE) is characterized by structural remodelling of the heart and pulmonary arteries. Osteopontin (OPN) has emerged as a key factor in cardiovascular remodelling in response to pressure or volume overload. We studied the possible effects of HHE on the OPN synthesis system. METHODS One hundred and forty-eight male Wistar rats were housed in a chamber with conditions equivalent of an altitude of 5500 m for up to 21 days. RESULTS Plasma OPN protein level was found to be significantly decreased on day 0.5 of exposure to HHE, as was the level in the adrenal gland (which secreted highest levels of OPN protein). In the right ventricle of the heart (mRNA) and the lung (protein), OPN expression was found to be significantly increased only on day 1 and day 5, respectively, of exposure to HHE. By immunohistochemistry, the distribution and intensity of OPN protein in several organs were found to alter during exposure to HHE. However, these changes in OPN synthesis did not coincide with the moderate increase in pulmonary arterial pressure (PAP) (maximal mean PAP, 24.5 mmHg) during HHE. CONCLUSION Pulmonary hypertension in HHE with conditions equivalent of an altitude of 5500 m may induce little or no OPN in heart and lung. Sustained induction may require a more severe PAP overload.
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Affiliation(s)
- M Uenoyama
- Division of Environmental Medicine, National Defense Medical College Research Institute, Tokorozawa, Japan
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24
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Al Sheikh Ali M, Gunduz M, Gunduz E, Tamamura R, Beder L, Tominaga S, Onoda T, Yamanaka N, Grenman R, Shimizu K, Nagai N, Nagatsuka H. Lack of B-RAF mutations in head and neck squamous cell carcinoma. Folia Biol (Praha) 2008; 54:157-161. [PMID: 19178815] [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
B-RAF is one of the most commonly mutated oncogenes in human cancer. However, the mutation status of B-RAF has not been established completely in HNSCC. We have analysed the mutation status of the kinase domain of the B-RAF gene (exons 11 and 15) in 91 Japanese HNSCC patients as well as 12 HNSCC cell lines. DNA was extracted and amplified by PCR. Mutations were then analysed by SSCP mutation detection method. Since V600EB-RAF constitutes 90 % of the mutations identified in B-RAF in human cancers, we also used MASA analysis to specifically detect this mutation in exon 15 of B-RAF. Using both methods, no mutation was found in both exon 11 and 15 in all patients and cell lines. Mu tations are absent or rare in the kinase domain of B-RAF in Japanese HNSCC. However, more studies are still needed to determine its usefulness as a target for molecular therapy in these patients.
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Affiliation(s)
- M Al Sheikh Ali
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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25
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Nakata B, Sowa M, Tsuji A, Kamano T, Sasaki K, Fukunaga Y, Takahashi M, Tsujitani S, Mikami Y, Mitachi Y, Nishimura S, Araki H, Yamamitsu S, Hirakawa K, Tominaga S, Shirasaka T, Inokuchi K. Continuous infusion of 5-fluorouracil with versus without low-dose, consecutive administration of cisplatin in advanced colorectal cancer. A prospective randomized phase II study. J Exp Clin Cancer Res 2007; 26:51-60. [PMID: 17550132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Recently, the treatment of advanced gastric cancer by continuous infusion of 5-fluorouracil (5-FU) with low-dose cisplatin (CDDP) has improved efficacy without severe toxicities. The possible effectiveness of 5-FU+low-dose CDDP for colorectal cancer (CRC) is intriguing. One hundred fifty-five patients with far-advanced CRC including at least one measurable lesion were enrolled in a prospective randomized clinical trial funded by the Japanese Foundation for Multidisciplinary Treatment of Cancer. These patients were assigned to the two arms to assess the value of low-dose CDDP when added to a continuous intravenous infusion of 5-FU at a dose of 300 mg/m(2)/24 hrs in a one-week cycle consisting of 5 days of treatment and 2 days of rest for at least 12 weeks. CD-DP was given intravenously at a dose of 3 mg/m(2) on days 1-5 and days 8-12, and then at a dose of 7 mg/m(2) twice a week. Three patients were excluded from the trial. The response rate in the 5-FU+low-dose CDDP arm (n=75) was significantly higher than that in the 5-FU arm (n=77) (25.3% vs. 11.7%; P = 0.037). There was no significant difference in the median overall survival time between the 5-FU+low-dose CDDP arm and the 5-FU arm (479 and 491 days, respectively). Grades 3/4 toxicities occurred infrequently in both arms. The quality of life was almost the same between the arms. Low-dose CDDP improved the response rate while keeping toxicities within clinically acceptable limits. However, this combined treatment did not confer a survival advantage over treatment with continuous infusion of 5-FU alone for patients with far-advanced CRC; that might be attributable to the short CDDP administration setting of 12 weeks.
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Affiliation(s)
- B Nakata
- Department of Surgical Oncology, Osaka City University Graduate School of Medicine, Osaka, Japan.
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26
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Ogawa J, Harigai M, Akashi T, Nagasaka K, Suzuki F, Tominaga S, Miyasaka N. Exacerbation of chronic active Epstein-Barr virus infection in a patient with rheumatoid arthritis receiving humanised anti-interleukin-6 receptor monoclonal antibody. Ann Rheum Dis 2006; 65:1667-9. [PMID: 17105857 PMCID: PMC1798471 DOI: 10.1136/ard.2006.054197] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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27
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Kanda M, Ohto-Ozaki H, Kuroiwa K, Tominaga S, Watanabe E, Iwahana H. Elevation of ST2 protein levels in cerebrospinal fluid following subarachnoid hemorrhage. Acta Neurol Scand 2006; 113:327-33. [PMID: 16629769 DOI: 10.1111/j.1600-0404.2006.00587.x] [Citation(s) in RCA: 5] [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: 11/26/2022]
Abstract
OBJECTIVE To study the mode of appearance of ST2 in cerebrospinal fluid (CSF) after subarachnoid hemorrhage (SAH). MATERIALS AND METHODS Immunoprecipitation and subsequent immunoblotting were performed to reveal the existence of ST2 in CSF after SAH. CSF samples from 21 patients were analyzed for ST2 using an enzyme-linked immunosorbent assay system. The ST2 levels were compared between serum and CSF after SAH. The ST2 levels in CSF were measured in six patients operated with other than SAH. RESULTS ST2 was secreted into CSF after SAH. The concentration of ST2 was the highest in the samples of the first post-operative day and declined thereafter. The patients operated with other than SAH did not show the elevation of ST2 in CSF. CONCLUSIONS This study revealed the presence of ST2 in CSF for the first time and suggested a possibility that ST2 is related to the inflammatory reaction in the central nervous system after SAH.
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Affiliation(s)
- M Kanda
- Department of Surgical Neurology, Jichi Medical School, Tochigi, Japan
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Kubo S, Kikawada T, Hasegawa H, Tominaga S, Yoshimine T. Irrigation-suction straw sheath system for a rigid endoscope during endonasal endoscopic pituitary surgery. ACTA ACUST UNITED AC 2006; 48:373-5. [PMID: 16432789 DOI: 10.1055/s-2005-915630] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE One of the most problematic conditions during endonasal endoscopic pituitary surgery is blurred endoscopic vision caused by blood or bone dust. To address this problem we used a new device, the irrigation-suction straw sheath system originally developed for endoscopic sinus surgery in rhinology, for the endoscopic pituitary surgery. METHODS The irrigation-suction straw system (K-endosheath; Koken Co., Tokyo, Japan) consists of a flattened disposable straw catheter which can be attached on a rigid endoscope. When the endoscope is inserted into the oblong catheter, two gaps remain on either side of the endoscope. Through each of these gaps irrigation and continuous suction are performed respectively. RESULTS Clear vision could be immediately obtained by pressing the button to release the irrigation water onto the endoscope's front lens. Even targeted irrigation during drilling was possible. Above all, continuous suction was useful to clear the operative field of blood, smoke, or bone dust, ensuring the safety and uninterrupted progress of the procedure. CONCLUSION This irrigation-suction system has proved to be very useful and easy to use for endonasal endoscopic pituitary surgery. Further development of such new devices and instruments specialized for endonasal endoscopic pituitary surgery will promote the increased use of this minimally invasive technique in neurosurgery.
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Affiliation(s)
- S Kubo
- Department of Neurosurgery, Tominaga Hospital, 1-4-48 Minato-machi, Naniwa-ku, Osaka 556-0017, Japan.
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Ikenaga M, Kato T, Mishima H, Fukunaga M, Murata K, Tominaga S, Kano T, Morita S, Sekimoto M, Sakamoto J, Monden M. A multicenter phase 2 study of irinotecan (CPT-11) and doxifluridine (5’-DFUR), an intermediate form of capecitabine, for metastatic colorectal cancer (MCRC). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.3698] [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: 11/20/2022] Open
Affiliation(s)
- M. Ikenaga
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - T. Kato
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - H. Mishima
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - M. Fukunaga
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - K. Murata
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - S. Tominaga
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - T. Kano
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - S. Morita
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - M. Sekimoto
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - J. Sakamoto
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
| | - M. Monden
- MCSGO Colorectal Cancer Treatment Group, Suita, Osaka, Japan; ECRIN, Kyoto, Japan
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Abstract
We have developed a disposable plastic introducer sheath for use with a flexible endoscope during intraventricular procedures. The sheath is composed of a thin polypropylene tube passing through the center of a plastic stopper. The tube serves as a sheath through which the fiberscope is introduced into the ventricle. The stopper seats in the burr hole and prevents downward and lateral movement of the tube. The sheath can be placed safely in the ventricle with a drainage catheter used as an introducing guide. We used this sheath system in 10 patients and found it very useful. Manipulation of the fiberscope was not hindered, copious irrigation was allowed, and the sheath remained stable on the skull. This new introducer sheath may contribute to the increased use of a flexible endoscope in neuroendoscopic procedures.
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Affiliation(s)
- S Kubo
- Department of Neurosurgery, Tominaga Hospital, Osaka, Japan.
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31
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Inamori M, Togawa J, Kawamura H, Abe Y, Naitoh H, Nagase H, Nakajima A, Saito T, Tominaga S, Ueno N, Tanaka K, Sekihara H. Severe ulceration of the stomach after endoscopic injection sclerotherapy. Endoscopy 2003; 35:1082. [PMID: 14648428 DOI: 10.1055/s-2003-44588] [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: 12/10/2022]
Affiliation(s)
- M Inamori
- Third Department of Internal Medicine, Yokohama City University School of Medicine, Yokohama, Japan.
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Matsuo K, Hamajima N, Ikehara Y, Suzuki T, Nakamura T, Matsuura A, Tajima K, Tominaga S. Smoking and polymorphisms of fucosyltransferase gene Le affect success of H. pylori eradication with lansoprazole, amoxicillin, and clarithromycin. Epidemiol Infect 2003; 130:227-33. [PMID: 12729191 PMCID: PMC2869958 DOI: 10.1017/s0950268802008129] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Identification of factors influencing success of Helicobacter pylori (HP) eradication is important for clinical practice. We have prospectively conducted an HP eradication study in the Aichi Cancer Center with a total of 142 patients available for analysis. The overall success rate was 61.3% (95% confidence interval 52.7-69.3%). Smoking during the medication for eradication significantly decreased the success rate (42.9%), whereas smoking cessation during the treatment was associated with a similar rate as for non-smokers (66.7%). We also examined links between an eradication outcome and polymorphisms of Le, Se, IL1A, IL1B, IL1RN and MPO genes, but with one exception none showed any association. The non-functional le allele of Le polymorphisms, leading to decreased expression of Le(b) antigen to which HP attaches with adhesin, showed a beneficial effect for success. Although further clarification is necessary, our study indicated that smoking cessation and Le gene polymorphisms may affect the success rate of HP eradication.
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Affiliation(s)
- K Matsuo
- Division of Epidemiology and Prevention, Nagoya, Japan
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Abstract
BACKGROUND We have recently reported that soluble ST2 protein levels are elevated in the sera of patients with asthma, and correlate well with the severity of asthma exacerbation. However, the role, function, and kinetics of soluble ST2 expression in asthma remain unclear. OBJECTIVE The objective of the present study was to clarify the function and kinetics of soluble murine (m) ST2 expression in a murine asthma model. METHODS We analyzed the kinetics of gene and protein expression of mST2 in sera or lung tissue after allergen (ovalbumin; OVA) challenge in a murine model of allergic airway inflammation, the effects of mST2 protein on OVA-induced Th2 cytokine production in vitro from splenocytes of sensitized mice, and the effects of soluble mST2 on Th2-dependent allergic airway inflammation by in vivo gene transfer of mST2. RESULTS Serum mST2 protein levels increased to the maximal level 3 h after the allergen challenge, before serum IL-5 levels peaked. The mRNA expression of mST2 in lung tissue was induced after the allergen challenge, while that in the spleen was constitutively detected. Furthermore, pre-treatment with mST2 protein significantly inhibited the production of IL-4 and IL-5, but not IFN-gamma, from OVA-stimulated splenocytes in vitro, and intravenous mST2 gene transfer resulted in a drastic reduction in the number of eosinophils and in the levels of IL-4 and IL-5 in bronchoalveolar lavage fluid, compared with those in response to transfer of non-coding plasmid vector or of lipid alone. CONCLUSION These results suggest that increases in endogenous mST2 protein after allergen exposure may modulate Th2-mediated airway inflammation, and that in vivo gene transfer of mST2 can be applicable to use in a novel immunotherapy for allergic diseases.
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Affiliation(s)
- K Oshikawa
- Division of Pulmonary Medicine, Department of Medicine, Jichi Medical School, Tochigi, Japan.
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Tominaga S, Busnyuk A, Matsushima T, Yamaguchi K, Ono F, Terai T, Yamawaki M. Study of Carbon Deposition Effect on Hydrogen Permeation Through Palladium Membrane. Fusion Science and Technology 2002. [DOI: 10.13182/fst02-a22719] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Tominaga
- Department of Quantum Engineering and Systems Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - A. Busnyuk
- Bonch-Bruyevich University, 61 Moika, St. Petersburg 191186, Russian Federation
| | - T. Matsushima
- Department of Quantum Engineering and Systems Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - K. Yamaguchi
- Department of Materials Science, Japan Atomic Energy Research Institute, 2-4 Shirakata-Shirane, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - F. Ono
- Nuclear Engineering Research Laboratory, University of Tokyo, 2-22 Shirakata-Shirane, Tokai-mura, Ibaraki-ken 319-1188, Japan
| | - T. Terai
- Department of Quantum Engineering and Systems Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - M. Yamawaki
- Department of Quantum Engineering and Systems Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Zänker KS, Tominaga S, Mihich E, Gao YT. International symposium on molecular basis for cancer chemo- and immuno-prevention: meeting report, meeting held at Shanghai, China, Nov 29-Dec 1 2001. J Cancer Res Clin Oncol 2002; 128:288-93. [PMID: 12029446 DOI: 10.1007/s00432-002-0333-6] [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] [Subscribe] [Scholar Register] [Received: 01/15/2002] [Accepted: 01/29/2002] [Indexed: 11/28/2022]
Affiliation(s)
- K S Zänker
- Institute of Immunology, University of Witten/Herdecke, 58448 Witten, Germany.
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Huang XE, Tajima K, Hamajima N, Kodera Y, Yamamura Y, Xiang J, Tominaga S, Tokudome S. Effects of dietary, drinking, and smoking habits on the prognosis of gastric cancer. Nutr Cancer 2002; 38:30-6. [PMID: 11341041 DOI: 10.1207/s15327914nc381_5] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [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: 01/11/2023]
Abstract
Although it has been clarified that dietary, drinking, and smoking habits contribute to the onset of gastric cancer, little is known about their impact on prognosis of gastric cancer. To examine this question, a prognostic analysis was conducted using data from Aichi Cancer Center Research Institute and Hospital. From January 1988 to December 1994, information on 877 gastric cancer patients (578 men and 299 women) regarding habitual smoking and drinking, food consumption, histological grade, and clinical stage of tumor as well as follow-up results were collected. Survival status of all patients was followed up until December 1998, and the survival function was estimated by the Kaplan-Meier method. Proportional hazard analysis was used to test the effect of each lifestyle item on gastric cancer death. After controlling for age, gender, histological grade, and stage of disease, hazard ratios (HR) were calculated. Values for consumption of raw vegetables [HR = 0.74, 95% confidence interval (CI) = 0.56-0.98], tofu (HR = 0.65, 95% CI = 0.42-0.99), and chicken meat (HR = 0.61, 95% CI = 0.39-0.95) more than three times per week demonstrated significantly decreased risk. However, the risk ratio was 2.53 (95% CI = 1.22-5.29) for habitual smokers, and an inverse dose-response relationship was also found between ever smoking and gastric cancer patient survival. Therefore, this study suggested that frequent intake of raw vegetables and tofu is favorable, whereas habitual smoking is an adverse prognostic factor for gastric cancer. Our study implies that an improvement of survival of Japanese gastric cancer might be achieved by lifestyle improvement.
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Affiliation(s)
- X E Huang
- Department of Public Health, Nagoya City University Medical School, Nagoya 467-8601, Japan
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37
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Tago K, Funakoshi M, Mano H, Yanagisawa K, Hayakawa M, Kuroiwa K, Iwahana H, Kasahara T, Tominaga S. Presence of a genistein-responsive inhibitory mechanism on interleukin-1alpha-induced NF-kappaB activation. Eur J Biochem 2001; 268:6526-33. [PMID: 11737207 DOI: 10.1046/j.1432-1327.2001.02603.x] [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: 11/20/2022]
Abstract
Interleukin 1 (IL-1) is known to activate the signal transduction machinery, including the transcription factor, nuclear factor kappa B (NF-kappaB). The activation mechanism of NF-kappaB has been studied intensively, while the negative regulatory mechanisms of NF-kappaB remain to be clarified. In the present study, we found that genistein, a tyrosine kinase inhibitor, augmented IL-1alpha-dependent NF-kappaB activation, suggesting the presence of a tyrosine kinase mediating a suppression signal on NF-kappaB. As determined by luciferase reporter gene assay using kappaB-responsive element, genistein enhanced IL-1alpha-induced NF-kappaB activation. Although genistein failed to increase luciferase activity at 1 and 3 h after IL-1alpha stimulation, it induced prolonged activation beginning at 6 h after the initial stimulation. We next examined whether genistein augmented the DNA-binding activity of NF-kappaB, using electrophoretic mobility shift assay. In the case of the control experiment, the binding of NF- kappaB to the kappaB-responsive element peaked at 30 min after IL-1alpha stimulation, and decreased thereafter. In contrast, treatment with genistein maintained the maximum binding activity for at least 2 h after stimulation. Moreover, genistein enhanced the IL-1alpha-dependent degradation of IkappaBalpha. Taken together, our results indicate that genistein augments IkappaB degradation, resulting in continuous NF-kappaB activation. This suggests the possibility that tyrosine kinase negatively regulates NF-kappaB.
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Affiliation(s)
- K Tago
- Department of Biochemistry, Jichi Medical School, Tochigi, Japan
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38
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Ito LS, Oba SM, Hamajima N, Marie SK, Uno M, Shinjo SK, Kino A, Lavilla F, Inoue M, Tajima K, Tominaga S. Helicobacter pylori seropositivity among 963 Japanese Brazilians according to sex, age, generation, and lifestyle factors. Jpn J Cancer Res 2001; 92:1150-6. [PMID: 11714438 PMCID: PMC5926653 DOI: 10.1111/j.1349-7006.2001.tb02134.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Seropositivity of anti-Helicobacter pylori antibody (HP + ) was examined among Japanese Brazilians. The study was announced through 18 Japanese community culture associations in São Paulo, Curitiba, Mogi das Cruzes, and Mirandopolis in 2001. Among 969 participants, 963 individuals aged 33 - 69 years were analyzed. The overall HP + % was 48.1% (95% confidence interval, 44.9 - 51.3%). There was no difference in HP + % between 399 males and 564 females (49.6% and 47.0%, respectively). The HP + % increased with age; 35.3% for those aged 33 - 39 years, 46.2% for those aged 40 - 49 years, 46.5% for those aged 50 - 59 years, and 56.9% for those aged 60 - 69 years, but no differences were observed among the generations (Issei, Nisei, and Sansei) for each 10-year age group. Mogi das Cruzes, a rural area, showed a higher HP + %. Length of education was inversely associated with the positivity; the odds ratio (OR) relative to those with eight years or less of schooling was 0.61 (0.42 - 0.89) for those with 12 years or more. The associations with smoking and alcohol drinking were not significant. Fruit intake was associated with the HP + %; the OR relative to everyday intake was 1.38 (1.05 - 1.83) for less frequent intake, while intake frequencies of green tea, miso soup, and pickled vegetables (tsukemono) were not. Multivariate analysis including sex, 10-year age group, residence, education, and fruit intake showed that all factors except sex were significant. This is the largest study of HP infection among Japanese Brazilians, and the results indicated a similar pattern of age-specific infection rate to that for Japanese in Japan.
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Affiliation(s)
- L S Ito
- JICA Trainee, Aichi Cancer Center Research Institute, Nagoya 464-8681
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39
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Tominaga S. [Stomach cancer]. Nihon Rinsho 2001; 59 Suppl 7:274-81. [PMID: 11808132] [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: 02/23/2023]
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40
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Katsuda N, Hamajima N, Matsuo K, Saito T, Ito LS, Inoue M, Takezaki T, Tajima K, Tominaga S. [Association between the interleukin 1B (C-31T) polymorphism and Helicobacter pylori infection in health checkup examinees]. Nihon Koshu Eisei Zasshi 2001; 48:604-12. [PMID: 11579484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
PURPOSE Associations between Helicobacter pylori (HP) infection and lifestyle factors have been demonstrated by several studies, but there are very few reports on links with host factors, especially concerning genetic polymorphisms for inhabitants of large city. The present investigation was conducted to determine the HP infection rate with reference to the Interleukin-1 beta gene (IL-1B) polymorphism and assess the interactions with smoking reported for outpatients. METHOD The subjects were 468 participants in a health-check-up program of law of health for aged conducted by Nagoya Nishi Health Center. The participants were asked to permit use of their residual blood drawn during a health-check-up program and written informed consent was obtained for gene polymorphism tests. Data on smoking habit were obtained by self-administered questionnaire. The IL-1B C-to-T polymorphism at -31 was genotyped by PCR-CTPP (polymerase chain reaction with confronting two-pair primers) and an anti-HP IgG antibody test was used for detecting HP infection. Differences in values were assessed by a chi 2 test. An unconditional logistic model was applied for estimating odds ratios with the computer program STATA Version 6. This study was approved by the Ethical Committee at Aichi Cancer Center in 2000 before it was commenced (Ethical Committee Approval Number 11-12) RESULTS The HP infection rate was 52.6% (61/116) for the C/C genotype of IL-1B-31, 48.6% (89/183) for the C/T, and 63.2% (103/163) for T/T; the difference were not statistically significant. However, when non-current smokers were excluded, the rate were 47.8% (11/23), 52.9% (18/34), and 72.7% (16/22), respectively, indicating the T/T genotype to have a higher infection rate. The age-sex-smoking adjusted odds ratio (OR) relative to the C/C genotype were 0.97 (95% confidence interval, 0.59-1.57) for the T/C genotype and 1.73 (1.04-2.87) for the T/T genotype. Among current and former smokers the age-sex adjusted OR were 1.68 (0.50-5.71) for the T/C genotype and 5.29 (1.11-25.1) for the T/T genotype, suggesting a effect of this polymorphism prominent in smokers. CONCLUSION An association between the IL-1B-31 polymorphism and persistent HP infection was observed for inhabitants with a smoking habit, indicating that this polymorphism is one genetic trait conferring an increased likelihood of persistent HP infection.
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Affiliation(s)
- N Katsuda
- Nagoya City Nishi Health Center, (Nagoya City Kita Health Center)
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41
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Inoue M, Tajima K, Mizutani M, Iwata H, Iwase T, Miura S, Hirose K, Hamajima N, Tominaga S. Regular consumption of green tea and the risk of breast cancer recurrence: follow-up study from the Hospital-based Epidemiologic Research Program at Aichi Cancer Center (HERPACC), Japan. Cancer Lett 2001; 167:175-82. [PMID: 11369139 DOI: 10.1016/s0304-3835(01)00486-4] [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: 01/24/2023]
Abstract
Experimental studies suggest various features of anticancer activity of green tea including inhibitory effect of tumor invasion and metastasis. This study was conducted to examine the association between regular green tea consumption prior to diagnosis and subsequent risk of breast cancer recurrence. The Hospital-based Epidemiologic Research Program at Aichi Cancer Center (HERPACC) was started in 1988, in which information on lifestyle has routinely been collected from all first-visit outpatients by questionnaire. A total of 1160 new surgical cases of female invasive breast cancers with HERPACC information diagnosed between June 1990 and August 1998 were followed up through December 1999, and the risk (hazard ratio: HR) of recurrence was assessed with reference to daily green tea consumption using a Cox proportional hazard model. During 5264 person-years of follow-up, 133 subjects (12%) were documented to suffer recurrence of breast cancer. A decreased HR for recurrence adjusted for stage was observed with consumption of three or more daily cups of green tea (HR=0.69, 95% confidence interval (95%CI)=0.47-1.00). Particularly in stage I, the HR was decreased statistically significantly (HR=0.43, 95%CI=0.22-0.84). A similar tendency was observed for stage II subjects, but was not present among more advanced stages. Although careful interpretation is needed, these results suggest the possibility that regular green tea consumption may be preventive against recurrence of breast cancer in early stage cases.
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Affiliation(s)
- M Inoue
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya 464-8681, Japan.
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42
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Hamajima N, Matsuo K, Suzuki T, Nakamura T, Matsuura A, Tajima K, Tominaga S. Low expression myeloperoxidase genotype negatively associated with Helicobacter pylori infection. Jpn J Cancer Res 2001; 92:488-93. [PMID: 11376556 PMCID: PMC5926737 DOI: 10.1111/j.1349-7006.2001.tb01120.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Our previous study revealed that a polymorphism of the interleukin (IL) 1B gene, encoding the pro-inflammatory cytokine IL-1 beta, influenced the prevalence of persistent Helicobacter pylori (HP) infection. In this paper, a polymorphism of another inflammation-related enzyme, myeloperoxidase (MPO), was examined with respect to association with the HP infection. The polymorphism is due to a G-to-A transition at - 463 in the promoter region of MPO. The G allele is the wild type with normal expression, while the A allele is a low expression allele. The subjects were 241 non-cancer outpatients (118 males and 123 females) aged 39 to 69 who participated in an HP eradication program at Aichi Cancer Center Hospital. High-molecular weight Campylobacter-Associated-Protein (HM-CAP) ELISA (Enteric Products Ins., Westbury, NY) was used for the identification of HP-infected participants. The frequency was 79.7% (192 / 241) for the GG genotype, 19.5% (47 / 241) for the GA genotype, and 0.8% (2 / 241) for the AA genotype. The sex-age-adjusted odds ratio (OR) relative to GG was 0.69 (95% confidence interval (CI), 0.35 -- 1.35) for individuals with the A allele, but among male participants the OR was 0.31 (0.11 -- 0.84). Subgroup analysis revealed significantly reduced ORs with the GA / AA genotypes for current smokers (0.19, 0.04 -- 0.96), and for those who were occasional / no milk drinkers (0.25, 0.09 -- 0.72). These findings are consistent with the results for IL-1B in our earlier study, suggesting that inflammatory responses in the gastric mucosa may influence persistent HP infection, and that smoking and milk intake may be effect-modifiers.
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Affiliation(s)
- N Hamajima
- Division of Epidemiology and Prevention, Aichi Cancer Center, Chikusa-ku, Nagoya 464-8681, Japan.
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43
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Inamori M, Kayama H, Tsuboi H, Togawa J, Endo Y, Kaifu H, Tominaga S, Oikawa H, Nagura H, Naitoh M, Saitoh T, Tanaka K, Sekihara H. [Bleeding gastric varices associated with pancreatic arteriovenous malformation]. Nihon Shokakibyo Gakkai Zasshi 2001; 98:569-71. [PMID: 11400288] [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: 02/20/2023]
Affiliation(s)
- M Inamori
- Department of Gastroenterology, Katta General Hospital
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44
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Narita H, Ooshita T, Itoh T, Tsuchida D, Uchiyama M, Mori Y, Kawamoto M, Tominaga S. [Development of the chromatography analysis of liquid trapping 99mTc-Technegas using Jikei impinger]. Kaku Igaku 2001; 38:211-8. [PMID: 11452486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
We developed the equipment which collected 99mTc-Technegas into liquid (saline) and named this equipment an impinger of Jikei University Style. We further developed a technique using this impinger to evaluate its formation qualitatively by paper chromatography. Utilizing this technique we investigated various factors that caused environmental contamination by 99mTc-Technegas, including changes over time in a Technegas generator. It was demonstrated that upon getting mixed with oxygen gas to the argon gas, the Technegas generator induced contamination of 99mTc-Pertechnegas easily, leading to changes in its formation. The change of formation quality of the Technegas generator with the lapse of time was also revealed. These findings indicated that the maintenance and inspection of the equipment were important. This method is a simple and easy technique for the evaluation of 99mTc-Technegas formation, making it possible to perform the quality control of examination agent and the Technegas generator.
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Affiliation(s)
- H Narita
- Department of Radiology, Jikei University School of Medicine Hospital
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Abstract
Associations between Helicobacter pylori (HP) infection and lifestyle factors have been reported by several authors, but little is known about the host factors associated with the infection. This study aims to examine the infection rate of HP according to gene polymorphisms of interleukin (IL)-1A, IL-1B, and IL-1RN, and to investigate the interactions with lifestyle factors. Subjects were 241 non-cancer outpatients who had participated in a HP eradication program. Polymorphisms at - 889 (T to C) of IL-1A, at - 31 (C to T; T allele makes a TATA box) and - 511 (C to T) of IL-1B, and at intron 2 (86-bp VNTR (variable number of tandem repeats)) of IL-1RN were genotyped by PCR (polymerase chain reaction), PCR-RFLP (restriction fragment length polymorphism) and PCR-CTPP (PCR with confronting two-pair primers). It was found that IL-1B polymorphisms at - 31 and - 511 were near-completely linked, but in the opposite way to that in Caucasians; - 31C / - 511T and - 31T / - 511C alleles were dominant in the present subjects. The HP infection rate was substantially different among the genotypes of IL-1B C - 31T; 45.2% (19 / 42) for the C / C, 67.7% (90 / 133) for the C / T, and 63.6% (42 / 66) for the T / T. The age-sex adjusted odds ratio (OR) relative to the C / C genotype was 2.32 (95%CI (confidence interval), 1.10 - 4.92) for the T / C genotype and 2.46 (1.06 - 5.74) for the T / T genotype. The OR for the T / T genotype was significantly modified by smoking status; interaction term = 14.6 (1.12 - 190). The polymorphisms of IL-1A and IL-1RN were not associated with the infection rate. The results suggested that the T allele of IL-1B C - 31T is associated with vulnerability to persistent HP infection, and that the vulnerability is modified by smoking.
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Affiliation(s)
- N Hamajima
- Division of Epidemiology and Prevention, Aichi Cancer Center, 1-1 Kanokoden, Chikusa-ku, Nagoya 464-8681, Japan.
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Tominaga S. [Prevention of stomach cancer from a view point of epidemiologic trends]. Nihon Rinsho 2001; 59 Suppl 4:493-7. [PMID: 11424431] [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: 02/20/2023]
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47
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Tominaga S. [Epidemiologic trends of stomach cancer in Japan and world]. Nihon Rinsho 2001; 59 Suppl 4:5-12. [PMID: 11424433] [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: 02/20/2023]
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Matsumoto H, Inaba H, Kishi M, Tominaga S, Hirayama M, Tsuda T. Orally administered delphinidin 3-rutinoside and cyanidin 3-rutinoside are directly absorbed in rats and humans and appear in the blood as the intact forms. J Agric Food Chem 2001; 49:1546-1551. [PMID: 11312894 DOI: 10.1021/jf001246q] [Citation(s) in RCA: 191] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Four components of black currant anthocyanins (BCA), delphinidin 3-O-beta-rutinoside (D3R), cyanidin 3-O-beta-rutinoside (C3R), delphinidin 3-O-beta-glucoside (D3G), and cyanidin 3-O-beta-glucoside (C3G), were found to be directly absorbed and distributed to the blood and excreted into urine as the glycosylated forms. In a rat study, following oral administration of purified D3R, C3R, and C3G (800 micromol/kg of body weight), the anthocyanins were detected in the plasma and the C(max) values were 580 +/- 410, 850 +/- 120, and 840 +/- 190 nmol/L, respectively, 0.5-2.0 h after administration. In a human study, when a mixture of BCA [6.24 micromol (3.58 mg) consisting of 2.75 micromol (1.68 mg) of D3R, 2.08 micromol (1.24 mg) of C3R, 1.04 micromol (0.488 mg) of D3G, and 0.37 micromol (0.165 mg) of C3G/kg of body weight)] was orally ingested by eight volunteers, D3R, C3R, D3G, and C3G were detected in the plasma and urine. The plasma C(max) values were 73.4 +/- 35.0, 46.3 +/- 22.5, 22.7 +/- 12.4, and 5.0 +/- 3.7 nmol/L, respectively, 1.25-1.75 h after intake, and the cumulative excretion of the four compounds in urine in the period 0-8 h after intake was 0.11 +/- 0.05% of the dose ingested. These results indicate that 3-O-beta-rutinosyl anthocyanins were directly absorbed and distributed to the blood.
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Affiliation(s)
- H Matsumoto
- Bioscience Laboratories, Meiji Seika Kaisha, Ltd., 5-3-1 Chiyoda, Sakado-shi, Saitama 350-0289, Japan.
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Funakoshi M, Sonoda Y, Tago K, Tominaga S, Kasahara T. Differential involvement of p38 mitogen-activated protein kinase and phosphatidyl inositol 3-kinase in the IL-1-mediated NF-κB and AP-1 activation. Int Immunopharmacol 2001; 1:595-604. [PMID: 11367542 DOI: 10.1016/s1567-5769(00)00035-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Interleukin-1 (IL-1) is a central regulator of the immune and inflammatory responses by which various inflammatory genes are induced. Although IL-1 signaling is known to involve PI3-kinase, p38 mitogen-activated protein (MAP) kinase and extracellular signal-regulated kinase (ERK), the crosstalk of these kinases on the IL-1-mediated signal transduction is not clear. We used two specific inhibitors, SB203580 which selectively inhibits p38 MAP kinase and LY294002 which inhibits PI3-kinase, respectively, to explore the involvement of these kinases in the IL-1-induced NF-kappa B activation, using a human glioblastoma cell line, T98G. Two kinase inhibitors decreased IL-1-induced IL-8 mRNA and protein levels markedly. IL-1 caused phosphorylation of p38 MAP kinase with concomitant recruitment of PI3-kinase to IL-1 receptor I (IL-1RI) and its activation. In this context, pretreatment of LY294002, but not SB203580, inhibited IL-1-induced NF-kappa B activation significantly. While IL-1 induced-AP-1 activation was moderate, both LY294002 and SB203580 suppressed IL-1-induced AP-1 activation. These observations were prominent particularly in the TRAF6 transfection system, in which overexpression of wild type TRAF6 augmented the IL-1 mediated NF-kappa B and AP-1 activation, while dominant negative TRAF6 construct (delta TRAF6) suppressed these activation. Namely, LY294002 inhibited TRAF6-mediated IL-1-induced NF-kappa B and AP-1 activation markedly, while SB203580 inhibited TRAF6-induced AP-1 activation but not NF-kappa B activation. Above results indicated that both PI3-kinase and p38 MAP kinase are differentially involved in IL-1-induced NF-kappa B and AP-1 activation.
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Affiliation(s)
- M Funakoshi
- Department of Biochemistry, Kyoritsu College of Pharmacy, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan
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Tominaga S. [Current status on the epidemiological studies of cancer of the major organs: introduction]. Gan To Kagaku Ryoho 2001; 28:135-6. [PMID: 11242633] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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