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Aupperle RL, Kuplicki R, Tsuchiyagaito A, Akeman E, Sturycz-Taylor CA, DeVille D, Lasswell T, Misaki M, Berg H, McDermott TJ, Touthang J, Ballard ED, Cha C, Schacter DL, Paulus MP. Ventromedial prefrontal cortex activation and neurofeedback modulation during episodic future thinking for individuals with suicidal thoughts and behaviors. Behav Res Ther 2024; 176:104522. [PMID: 38547724 DOI: 10.1016/j.brat.2024.104522] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/30/2024] [Accepted: 03/14/2024] [Indexed: 04/08/2024]
Abstract
Individuals experiencing suicidal thoughts and behaviors (STBs) show less specificity and positivity during episodic future thinking (EFT). Here, we present findings from two studies aiming to (1) further our understanding of how STBs may relate to neural responsivity during EFT and (2) examine the feasibility of modulating EFT-related activation using real-time fMRI neurofeedback (rtfMRI-nf). Study 1 involved 30 individuals with major depressive disorder (MDD; half with STBs) who performed an EFT task during fMRI, for which they imagined personally-relevant future positive, negative, or neutral events. Positive EFT elicited greater ventromedial prefrontal cortex (vmPFC) activation compared to negative EFT. Importantly, the MDD + STB group exhibited reduced vmPFC activation across all EFT conditions compared to MDD-STB; although EFT fluency and subjective experience remained consistent across groups. Study 2 included rtfMRI-nf focused on vmPFC modulation during positive EFT for six participants with MDD + STBs. Results support the feasibility and acceptability of the rtfMRI-nf protocol and quantitative and qualitative observations are provided to help inform future, larger studies aiming to examine similar neurofeedback protocols. Results implicate vmPFC blunting as a promising treatment target for MDD + STBs and suggest rtfMRI-nf as one potential technique to explore for enhancing vmPFC engagement.
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Affiliation(s)
- R L Aupperle
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA; School of Community Medicine, 1215 South Boulder Ave W., The University of Tulsa, Tulsa, OK, 74119, USA.
| | - R Kuplicki
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA
| | - A Tsuchiyagaito
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA
| | - E Akeman
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA
| | - C A Sturycz-Taylor
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA
| | - D DeVille
- Department of Psychiatry, University of California San Diego, 4510 Executive Drive, San Diego, CA, 92121, USA
| | - T Lasswell
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA
| | - M Misaki
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA
| | - H Berg
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA
| | - T J McDermott
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA
| | - J Touthang
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA
| | - E D Ballard
- Experimental Therapeutics and Pathophysiological Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA
| | - C Cha
- Department of Psychology, Columbia University, 428 Horace Mann, New York, NY, 10027, USA
| | - D L Schacter
- Department of Psychology, Harvard University, 33 Kirkland St., William James Hall, Cambridge, MA, 02138, USA
| | - M P Paulus
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74008, USA; School of Community Medicine, 1215 South Boulder Ave W., The University of Tulsa, Tulsa, OK, 74119, USA
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Takazawa I, Komai T, Misaki M, Kono M, Shoda H, Fujio K. Systemic lupus erythematosus with hepatic artery aneurysm and large vessel vasculitis. Scand J Rheumatol 2023:1-3. [PMID: 36815860 DOI: 10.1080/03009742.2023.2178772] [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: 02/24/2023]
Affiliation(s)
- I Takazawa
- Department of Allergy and Rheumatology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - T Komai
- Department of Allergy and Rheumatology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - M Misaki
- Department of Allergy and Rheumatology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - M Kono
- Department of Allergy and Rheumatology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - H Shoda
- Department of Allergy and Rheumatology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - K Fujio
- Department of Allergy and Rheumatology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
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Tsuda N, Inokuma S, Noguchi H, Yamaji M, Harada T, Misaki M, Masui Y, Kano T. AB0382 COMPARISON OF ADVERSE EVENTS (AEs) RELATED TO MAJOR ANTI-RHEUMATIC DRUGS, REPORTED TO THE OFFICIAL JAPANESE ADVERSE DRUG EVENT REPORT DATABASE (JADER). Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundCurrently, many disease-modifying anti-rheumatic drugs (DMARDs) are available for the treatment of rheumatoid arthritis (RA). Among them, methotrexate (MTX), biologic DMARDs (bDMARDs) and Janus kinase inhibitors (JAKi) are the major options. AEs related to these are major concerns. In Japan, the AEs data spontaneously reported to and summarized by Pharmaceuticals and Medical Devices Agency (PMDA) are freely accessible.ObjectivesThe major AEs relating to MTX, bDMARDs, and JAKi observed in the real world were compared.MethodsThe number of AEs listed by JADER from 2014 to 2020 was collected. The AEs were classified by System Organ Class (SOC) of Medical Dictionary for Regulatory Activities (MedDRA) and compared using the chi-square test. The bDMARDs included were etanercept (ETN), adalimumab (ADA), golimumab (GOL), tocilizumab (TCZ), and abatacept (ABT), and JAKi was tofacitinib (TOF) and baricitinib (BAR).ResultsThe total number of AEs was 27,604. The number was significantly increasing in total and MTX, GOL, TOF during these years, although the number of cases that have each DMARD is not known in this study. The proportion of SOCs among each DMARD was similar throughout the period.The most frequent was infections/infestations in all DMARDs except for MTX, in which neoplasms were the most. The primary cause of infection was bacterial, including pneumonia. Varicella-zoster virus infection in JAKi, and tuberculosis in ADA and GOL were conspicuous.Neoplasms were the second major in many DMARDs. Lymphoproliferative disorders were most common in MTX-related neoplasms, whereas solid tumors were more in other DMARDs like ABT or BAR.Other SOCs include all other categories such as the musculoskeletal, nervous system, cardiac, and vascular disorders. Among them, major adverse cardiovascular events (MACE, including cardiovascular death, myocardial infarction and stroke) and venous thromboembolism (VTE) were both reported in small numbers. However, more MACE was noted in BAR and GOL, and more VTE was in BAR and TOF compared to other DMARDs.ConclusionThe number of AEs cases related to DMARDs was increasing. Significant difference among AEs related to DMARDs was noted in the JADER database, especially regarding MTX and JAKi.References[1]S. Inokuma. Expert Open Drug Saf. 2021 Nov 11. Online ahead of print.Table 1.Total case numbers and proportion of adverse events related to each DMARD.DMARDs (year of launch)TotalMTX (1999)ETN (2005)ADA (2008)GOL (2011)TCZ (2008)ABT (2010)TOF (2013)BAR (2017)Number of AEs2760411636297419591302424517093065714Blood/lymphatic system disorders5.89.92.03.22.64.00.92.83.5Gastrointestinal disorders5.04.13.47.55.97.73.95.24.2General disorders/administration site reactions4.63.211.34.12.23.04.07.62.5Infections/infestations28.020.321.332.234.236.537.137.049.2 Pneumonia (bacterial)6.64.06.15.210.97.712.59.415.1 Other bacterial infection9.15.95.612.39.517.69.19.810.6 Herpes zoster2.11.10.41.41.21.01.28.211.2 Tuberculosis1.40.91.96.03.50.60.60.31.0Investigations5.04.95.52.32.65.72.28.32.8Neoplasms benign, malignant, unspecified21.134.811.013.512.77.415.610.815.4 Lymphoproliferative diseases14.329.82.84.14.02.24.52.12.2 Solid tumors5.63.87.37.87.54.09.97.310.5Respiratory, thoracic, mediastinal disorders7.16.88.38.49.56.57.46.26.7Other System Organ Class23.315.937.328.830.229.228.922.215.7 Major adverse cardiovascular events1.10.41.11.62.51.51.61.32.9 Venous thromboembolism0.40.10.40.50.60.30.21.11.4Background colors indicate: comparing to the total cases, higher with p<0.05, light pink; higher with p<0.00001, dark pink; higher with p<1E-10, red. Lower with p<0.05, light blue; lower with p<0.00001, blue; lower with p<1E-10, dark blue, using chi-square test. Yellow indicates System Organ Classes.Figure 1.Total number of adverse events reported from 2014 to 2020.Linear regression is shown only for DMARDs with increasing numbers of AEs.Disclosure of InterestsNone declared
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Lee T, Tokunaga S, Taniguchi N, Misaki M, Shimomura H, Nishino I, Itoh K, Takeshima Y. Underlying diseases in sporadic presentation of high creatine kinase levels in girls. Clin Chim Acta 2021; 519:198-203. [PMID: 33965408 DOI: 10.1016/j.cca.2021.05.003] [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: 03/30/2021] [Revised: 05/02/2021] [Accepted: 05/04/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Persistent creatine kinase (CK) elevation can occur due to various conditions. Identifying the causes of hyperCKemia is crucial for enabling appropriate follow-up and care. Girls with elevated CK levels may be carriers of Duchenne/Becker muscular dystrophy (DMD/BMD), making diagnosis more difficult than that in boys. This study aimed to elucidate the underlying causes of high CK levels in girls. METHODS Fourteen girls (seven symptomatic, seven asymptomatic) with persistently elevated CK levels but without a family history of muscle diseases were referred to our hospital between April 2014 and August 2018. Muscle biopsy and/or genetic analysis were conducted for diagnoses. RESULTS Among the symptomatic girls, six (85.7%) had muscular dystrophy (five DMD/BMD carriers, and one sarcoglycanopathy [limb-girdle muscular dystrophy: LGMDR4]), and one had dermatomyositis. Among the asymptomatic girls, four (57.1%) had muscular dystrophy (three DMD/BMD carriers, and one calpainopathy [LGMDR1]), and three were undiagnosed. CONCLUSION Our results indicate that muscular dystrophy, including DMD/BMD carriers, must be considered in girls with highperCKemia regardless of symptoms presentation, and in symptomatic girls with dermatomyositis. Investigations in girls with hyperCKemia should be performed under proper ethical considerations. Further research is necessary to develop a diagnostic strategy for girls with hyperCKemia.
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Affiliation(s)
- Tomoko Lee
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan.
| | - Sachi Tokunaga
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Naoko Taniguchi
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Maiko Misaki
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hideki Shimomura
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kyoko Itoh
- Department of Pathology and Applied Neurobiology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
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Lee T, Sokoda T, Misaki M, Shimomura H, Takeshima Y. EP.59A manifesting carrier of Duchenne muscular dystrophy with a balanced X- autosome translocation with a breakpoint in the dystrophin gene. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.465] [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]
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Lee T, Misaki M, Shimomura H, Tanaka Y, Yoshida S, Murayama K, Nakamura K, Fujiki R, Ohara O, Sasai H, Fukao T, Takeshima Y. Late-onset ornithine transcarbamylase deficiency caused by a somatic mosaic mutation. Hum Genome Var 2018; 5:22. [PMID: 30131866 PMCID: PMC6095930 DOI: 10.1038/s41439-018-0022-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 06/12/2018] [Accepted: 07/12/2018] [Indexed: 01/18/2023] Open
Abstract
An 18-month-old boy was diagnosed with late-onset ornithine transcarbamylase deficiency. Genetic analysis revealed a mosaic frameshift mutation (p.Q279fs) in the OTC gene. Despite the presence of a null mutation, he exhibited a milder phenotype, suggesting that the wild-type allele could rescue the function of OTC. The presence of mosaicism has great effects on the clinical phenotype and recurrence-risk assessment, which should be taken into consideration for genetic counseling.
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Affiliation(s)
- Tomoko Lee
- 1Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Maiko Misaki
- 1Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hideki Shimomura
- 1Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yasuhiko Tanaka
- 1Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Satoru Yoshida
- 2Department of Pediatrics, Seirei Mikatahara General Hospital, Hamamatsu, Japan
| | - Kei Murayama
- 3Center for Medical Genetics and Department of Metabolism, Chiba Children's Hospital, Chiba, Japan
| | - Kimitoshi Nakamura
- 4Department of Pediatrics, Kumamoto University Graduate School of Medicine, Kumamoto, Japan
| | - Ryoji Fujiki
- 5Department of Technology Development, Kazusa DNA Research Institute, Chiba, Japan
| | - Osamu Ohara
- 5Department of Technology Development, Kazusa DNA Research Institute, Chiba, Japan
| | - Hideo Sasai
- 6Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Toshiyuki Fukao
- 6Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yasuhiro Takeshima
- 1Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
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Toda N, Ihara K, Kojima-Ishii K, Ochiai M, Ohkubo K, Kawamoto Y, Kohno Y, Kumasaka S, Kawase A, Ueno Y, Futatani T, Miyazawa T, Nagaoki Y, Nakata S, Misaki M, Arai H, Kawai M, Sato M, Yada Y, Takahashi N, Komatsu A, Maki K, Watabe S, Sumida Y, Kuwashima M, Mizumoto H, Sato K, Hara T. Hyperinsulinemic hypoglycemia in Beckwith-Wiedemann, Sotos, and Kabuki syndromes: A nationwide survey in Japan. Am J Med Genet A 2016; 173:360-367. [PMID: 28102591 DOI: 10.1002/ajmg.a.38011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 09/21/2016] [Indexed: 11/06/2022]
Abstract
Beckwith-Wiedemann syndrome (BWS) is a congenital overgrowth syndrome that is occasionally associated with hyperinsulinemic hypoglycemia (HH) in the neonatal period. Sotos syndrome (SS) and Kabuki syndrome (KS) are other malformation syndromes that may be complicated with HH, however, the detailed clinical characteristics of HH accompanied with these syndromes remain unclear. We herein conducted a nationwide questionnaire survey in Japan. We sent a primary questionnaire concerning the clinical experience for these syndromes to 347 perinatal care institutions. As a result, 222 departments or hospitals returned the questionnaires and the total numbers of BWS, SS, and KS patients were 113, 88, and 51, respectively. We sent a secondary questionnaire to 31 institutions where patients with these syndromes presented with HH during infancy. The secondary questionnaires were returned from the institutions and the numbers of patients were 16 for BWS, 9 for SS, and 3 for KS, respectively. Then, we compared the clinical characteristics of infants suffering from transient HH with and without these dysmorphic syndromes. As a result, BWS, SS, and KS patients showed significantly larger body size, lower Apgar scores, higher insulin levels at HH, and shorter durations of HH than non-dysmorphic infants with transient HH. We propose that a careful observation for the signs of HH, even if not specific to the syndromes, is important for the diagnosis of patients with BWS, SS, and KS in the postnatal period. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Naoko Toda
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Kenji Ihara
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan.,Faculty of Medicine, Department of Pediatrics, Oita University, Oita, Japan
| | - Kanako Kojima-Ishii
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Masayuki Ochiai
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Kazuhiro Ohkubo
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Yutaka Kawamoto
- Department of Neonatology, Kawasaki Medical School Hospital, Okayama, Japan
| | - Yoshinori Kohno
- Department of Neonatology, Gifu Prefectural General Medical Center, Gifu, Japan
| | - Sakae Kumasaka
- Department of Neonatology, Japanese Red Cross Katsushika Maternity Hospital, Tokyo, Japan
| | - Akihiko Kawase
- Department of Neonatology, Kumamoto City Hospital, Kumamoto, Japan
| | - Yasuhisa Ueno
- Department of Neonatology, Ishikawa Prefectural Central Hospital, Kanazawa, Japan
| | - Takeshi Futatani
- Department of Pediatrics, Toyama Prefectural Central Hospital, Toyama, Japan
| | - Tokuo Miyazawa
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Yuko Nagaoki
- Department of Pediatrics, St Luke's International Hospital, Tokyo, Japan
| | - Setsuko Nakata
- Department of Pediatrics, Iida Municipal Hospital, Iida, Japan
| | - Maiko Misaki
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hiroko Arai
- Department of Neonatology, Toho University Omori Medical Center, Tokyo, Japan
| | - Masahiko Kawai
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Maki Sato
- Department of Pediatrics, Fukushima Medical University, Fukushima, Japan
| | - Yukari Yada
- Department of Pediatrics, Jichi Medical University, Shimotsuke, Japan
| | - Nobuhiro Takahashi
- Department of Pediatrics, Tenshi Hospital, Social Medical Corporation BOKOI, Sapporo, Japan
| | - Atsushi Komatsu
- Department of Obstetrics and Gynecology, The University of Tokyo Hospital, Tokyo, Japan
| | - Kanemasa Maki
- Department of Pediatrics, Yokkaichi Municipal Hospital, Yokkaichi, Japan
| | - Shinichi Watabe
- Department of Neonatal Intensive Care, Kurashiki Central Hospital, Kurashiki, Japan
| | - Yutaka Sumida
- Department of Pediatrics, Rinku General Medical Center, Izumisano, Japan
| | - Makoto Kuwashima
- Department of Pediatrics, Kiryu Kosei General Hospital, Kiryu, Japan
| | - Hiroshi Mizumoto
- Department of Pediatrics, Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Kazuo Sato
- Department of Pediatrics, National Kyushu Medical Center, Fukuoka, Japan
| | - Toshiro Hara
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
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Okuyama H, Ohfuji S, Hayakawa M, Urushihara N, Yokoi A, Take H, Shiraishi J, Fujinaga H, Ohashi K, Minagawa K, Misaki M, Nose S, Taguchi T. Risk factors for surgical intestinal disorders in VLBW infants: Case-control study. Pediatr Int 2016; 58:34-9. [PMID: 26333186 DOI: 10.1111/ped.12815] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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] [Received: 01/04/2015] [Revised: 02/20/2015] [Accepted: 06/10/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND Very low-birthweight (VLBW) infants (VLBWI) are at increased risk for surgical intestinal disorders including necrotizing enterocolitis (NEC), focal intestinal perforation (FIP) and meconium-related ileus (MRI). The aim of this study was to identify disease-specific risk factors for surgical intestinal disorders in VLBWI. METHODS A retrospective multicenter case-control study was conducted at 11 institutes. We reviewed VLBWI who underwent laparotomy for intestinal disorders including perforation and intractable bowel obstruction. The surgical disorders were classified into four categories (NEC, FIP, MRI, others) based on the macroscopic findings at operation. In order to identify risk factors, two matched controls for each subject were chosen based on gestational age and birthweight. OR and 95%CI were calculated using a conditional logistic regression model and a multivariate model. RESULTS A total of 150 cases (NEC, n = 44; FIP, n = 47; MRI, n = 42; others, n = 17) and 293 controls were identified. The cases and controls were similar in terms of gestational age and birthweight (cases/controls, 26.7 ± 2.5/26.5 ± 2.6 weeks; 790 ± 256/795 ± 257 g). On multivariate modeling, disease-specific risk factors were as follows: female (OR, 0.23; 95%CI: 0.06-0.89), respiratory distress syndrome (OR, 35.7; 95%CI: 2.48-514) and patent ductus arteriosus (OR, 10.9; 95%CI: 1.51-79.3) for NEC; outborn delivery (OR, 5.47; 95%CI: 1.48-20.2) for FIP; and twin pregnancy (OR, 4.25; 95%CI: 1.06-17.1), PROM (OR, 6.85; 95%CI: 1.33-35.4) and maternal steroid (OR, 0.23; 95%CI: 0.07-0.79) for MRI. CONCLUSIONS Different risk factors were identified for NEC, FIP and MRI, suggesting that each disease has a different etiology, and that different strategies are required to prevent these diseases.
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Affiliation(s)
- Hiroomi Okuyama
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Satoko Ohfuji
- Department of Public Health, Faculty of Medicine, Osaka City University, Osaka, Japan
| | - Masahiro Hayakawa
- Center for Maternal-Neonatal Care, Nagoya University Hospital, Nagoya, Japan
| | - Naoto Urushihara
- Department of Pediatric Surgery, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Akiko Yokoi
- Department of Pediatric Surgery, Hyogo Children's Hospital, Kobe, Japan
| | - Hiroshi Take
- Department of Pediatric Surgery, Kanagawa Children's Hospital, Yokohama, Japan
| | - Jun Shiraishi
- Department of Neonatology, Osaka Medical Center and Research Institute for Maternal and Child Health, Izumi, Japan
| | - Hideshi Fujinaga
- Division of Neonatology, National Center for Child Health and Development, Tokyo, Japan
| | - Kensuke Ohashi
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Kyoko Minagawa
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Maiko Misaki
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Satoko Nose
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Tomoaki Taguchi
- Department of Pediatric Surgery, Kyushu University, Fukuoka, Japan
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Alvarez RP, Kirlic N, Misaki M, Bodurka J, Rhudy JL, Paulus MP, Drevets WC. Increased anterior insula activity in anxious individuals is linked to diminished perceived control. Transl Psychiatry 2015; 5:e591. [PMID: 26125154 PMCID: PMC4490294 DOI: 10.1038/tp.2015.84] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 04/25/2015] [Accepted: 05/21/2015] [Indexed: 02/07/2023] Open
Abstract
Individuals with high-trait anxiety frequently report decreased perceived control. However, it is unclear how these processes are instantiated at a neural level. Prior research suggests that individuals prone to anxiety may have exaggerated activity in the anterior insula and altered activity in the cingulate cortex during anticipation of aversive events. Thus, we hypothesized that anxiety proneness influences anterior insula activation during anticipation of unpredictable threat through decreased perceived control. Forty physically healthy adults underwent neuroimaging while they explored computer-simulated contexts associated either with or without the threat of an unpredictable shock. Skin conductance, anxiety ratings and blood oxygenation level-dependent (BOLD) functional magnetic resonance imaging were used to assess responses to threat versus no threat. Perceived control was measured using the Anxiety Control Questionnaire-Revised. Mediation analysis examined how anxiety proneness influenced BOLD activity. Anticipation of unpredictable threat resulted in increased skin conductance responses, anxiety ratings and enhanced activation in bilateral insula, anterior midcingulate cortex (aMCC) and bed nucleus of the stria terminalis. Individuals with greater anxiety proneness and less perceived control showed greater activity in dorsal anterior insula (dAI). Perceived control mediated the relationship between anxiety proneness and dAI activity. Increased dAI activity was associated with increased activity in aMCC, which correlated with increased exploratory behavior. Results provide evidence that exaggerated insula activation during the threat of unpredictable shock is directly related to low perceived control in anxiety-prone individuals. Perceived control thus may constitute an important treatment target to modulate insula activity during anxious anticipation in anxiety-disordered individuals.
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Affiliation(s)
- R P Alvarez
- Laureate Institute for Brain Research, Tulsa, OK, USA,Faculty of Community Medicine, The University of Tulsa, Tulsa, OK, USA,Laureate Institute for Brain Research, 6655 South Yale Avenue, Tulsa, OK 74136, USA. E-mail:
| | - N Kirlic
- Laureate Institute for Brain Research, Tulsa, OK, USA,Department of Psychology, The University of Tulsa, Tulsa, OK, USA
| | - M Misaki
- Laureate Institute for Brain Research, Tulsa, OK, USA
| | - J Bodurka
- Laureate Institute for Brain Research, Tulsa, OK, USA,Center for Biomedical Engineering, The University of Oklahoma, Norman, OK, USA,College of Engineering, The University of Oklahoma, Norman, OK, USA
| | - J L Rhudy
- Department of Psychology, The University of Tulsa, Tulsa, OK, USA
| | - M P Paulus
- Laureate Institute for Brain Research, Tulsa, OK, USA
| | - W C Drevets
- Janssen Research and Development, Janssen Pharmaceuticals, Titusville, NJ, USA
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Osonoi S, Abe D, Baba M, Misaki M, Takeyasu N, Hayashi M. Various impairments of lower-limb in survival patients with percutaneous veno-arterial extracorporeal membrane oxygenation. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.2071] [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: 10/23/2022]
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11
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Tomomi O, Noriko F, Sawaki J, Misaki M, Kyoko M. PD22 ‐ Examination about eosinophilia, cytokine and gastrointestinal allergy in the preterm infant. Clin Transl Allergy 2014. [PMCID: PMC4082059 DOI: 10.1186/2045-7022-4-s1-p22] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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12
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Adachi T, Yoshida K, Sekiguchi Y, Misaki M, Abe D, Yui Y, Takeyasu N, Aonuma K. Characteristics of catheter ablation of atrial tachycardia involving interatrial septum. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p4979] [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: 11/13/2022] Open
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13
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Abe D, Sato A, Maruta S, Misaki M, Hoshi T, Takeyasu N, Aonuma K. Clinical value of drug-eluting stent over bare-metal stents in large coronary arteries in the patients with ST-segment elevation myocardial infarction. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3034] [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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14
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Matsuo T, Ihara K, Ochiai M, Kinjo T, Yoshikawa Y, Kojima-Ishii K, Noda M, Mizumoto H, Misaki M, Minagawa K, Tominaga K, Hara T. Hyperinsulinemic hypoglycemia of infancy in Sotos syndrome. Am J Med Genet A 2012; 161A:34-7. [DOI: 10.1002/ajmg.a.35657] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2012] [Accepted: 08/05/2012] [Indexed: 11/06/2022]
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15
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16
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Miyauchi S, Kan S, Koike T, Misaki M. S40-4 fMRI activation time-locked to rapid eye movements during REM sleep. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60251-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Tanaka Y, Miyauchi S, Misaki M, Tashiro T. Advantage of the upper visual field for lateral interaction of high-spatial frequency. J Vis 2010. [DOI: 10.1167/6.6.970] [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: 11/24/2022] Open
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18
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Horiguchi H, Nakadomari S, Furuta A, Masuda Y, Asakawa K, Koike T, Kan S, Misaki M, Miyauchi S, Wandell B. The balance between transient and sustained temporal response varies across the V1 visual field map. J Vis 2010. [DOI: 10.1167/8.6.294] [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: 11/24/2022] Open
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19
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Horiguchi H, Nakadomari S, Furuta A, Asakawa K, Masuda Y, Kitahara K, Abe T, Kan S, Misaki M, Miyauchi S. Correlation of fMRI responses to absolute luminance changes in visual cortex. J Vis 2010. [DOI: 10.1167/7.9.241] [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: 11/24/2022] Open
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20
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Matsumoto E, Tanaka Y, Misaki M, Miyauchi S. The leftward spatial bias exists in the estimation of the subjective midpoint without visual information. J Vis 2010. [DOI: 10.1167/3.9.563] [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: 11/24/2022] Open
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21
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Takahama S, Misaki M, Miyauchi S, Saiki J. Functional connectivity within the neural system during maintenance period in visual working memory task. J Vis 2010. [DOI: 10.1167/6.6.365] [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: 11/24/2022] Open
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22
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Tanaka Y, Miyauchi S, Imaruoka T, Misaki M, Matsumoto E, Tashiro T. Transfer of long-range interaction across the visual hemifield by reversed visual input. J Vis 2010. [DOI: 10.1167/3.9.166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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23
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Inui H, Kishida K, Misaki M, Kobayashi M, Shirai Y, Yamaguchi M. Temperature dependence of yield stress, tensile elongation and deformation structures in polysynthetically twinned crystals of Ti-Al. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01418619508243933] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Hayakawa T, Tanaka Y, Miyauchi S, Misaki M, Tashiro T. Assymetrical long-range interaction reversed with adaptation to upside-down reversed optical transformation. J Vis 2005. [DOI: 10.1167/5.8.723] [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: 11/24/2022] Open
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25
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Tanaka Y, Miyauchi S, Misaki M, Hayakawa T, Tashiro T. Asymmetrical long-range interaction between upper and lower visual hemifields. J Vis 2005. [DOI: 10.1167/5.8.724] [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: 11/24/2022] Open
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26
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Kawai K, Sakurai M, Sakai T, Misaki M, Kusano I, Shiraishi T, Yatani R. Demonstration of MDR1 P-glycoprotein isoform expression in benign and malignant human prostate cells by isoform-specific monoclonal antibodies. Cancer Lett 2000; 150:147-53. [PMID: 10704736 DOI: 10.1016/s0304-3835(99)00384-5] [Citation(s) in RCA: 27] [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: 11/17/2022]
Abstract
Prostate cancers are resistant to many anticancer agents at the time of presentation. P-glycoprotein (P-gp) is believed to mediate multidrug resistance phenotype. To elucidate the possible role of P-gp in such an intrinsic drug resistance of prostate cancers, its expression was examined immunohisochemically using two P-gp isoform-specific monoclonal antibodies (mAbs) with the paraffin embedded prostate samples derived from five nonmalignant and 30 untreated prostate cancer patients. In all of five normal prostate tissues, P-gp was consistently detected with both mAbs in the epithelial cells, especially at their apical site, and the level of expression was higher in the inner zone than in outer zone. On the other hand, tumor cells expressed P-gp heterogeneously in distribution and intensity; in 25 of 30 malignant cases P-gp expression was clearly demonstrated, whereas its expression was only faintly detected in other cases. However, the staining intensities for P-gp in prostate cancer cells were generally lower than in normal prostate epithelial cells. Thus, not only normal prostate epithelial cells but prostate cancer cells express at least MDR1 P-gp isoform. These results suggest that P-gp expression might play some role in intrinsic drug resistance of prostate cancer cells to many cytotoxic drugs as well as in relative resistance of the inner zone cells to the prostate carcinogenesis.
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Affiliation(s)
- K Kawai
- Institute of Clinical Research, National Mie Central Hospital, 2158-5 Myoujin-Cho, Hisai, Mie, Japan.
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27
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Masuoka H, Kamei S, Wagayama H, Ozaki M, Kawasaki A, Tanaka T, Kitamura M, Katoh S, Shintani U, Misaki M, Sugawa M, Ito M, Nakano T. Association of remnant-like particle cholesterol with coronary artery disease in patients with normal total cholesterol levels. Am Heart J 2000; 139:305-10. [PMID: 10650304 DOI: 10.1067/mhj.2000.100184] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Limited information is available as to whether there is a difference in the association of lipid and fibrinolytic variables with coronary artery disease according to the presence or absence of elevated serum total cholesterol. We examined the levels of various lipid and fibrinolytic variables including remnant-like particle cholesterol (RLP-C). RLP-C is a recently established simple assay method for the estimation of triglyceride-rich lipoprotein remnants. METHODS AND RESULTS Levels of total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol (HDL-C), triglyceride, lipoprotein(a), RLP-C, uric acid, blood glucose, tissue plasminogen activator, tissue plasminogen activator inhibitor type 1, antithrombin III, and protein C were measured in 208 patients who underwent diagnostic coronary angiograms. Of these 208 patients, 57 were hypercholesterolemic (> or =220 mg/dL) and 151 were normocholesterolemic. HDL-C showed significant differences between patients with and those without angiographically determined coronary artery stenosis in both hypercholesterolemic and normocholesterolemic patients (P =.0025 and P =.0003, respectively). Both RLP-C and uric acid showed significant differences only in the normocholesterolemic subgroup (P =.0006 and P =.0060, respectively). This difference in uric acid was not significant by multivariable analysis. The ratio of RLP-C/HDL-C was demonstrated to be highly significantly (P <.0001) associated with coronary artery stenosis in patients with normal total cholesterol, whereas there was no statistically significant association in the hypercholesterolemic patient subgroup. CONCLUSIONS Our current study disclosed that RLP-C levels are strongly associated with coronary artery disease, especially in patients with normal total cholesterol levels. Moreover, RLP-C/HDL-C ratio may be even more significantly associated with the presence of coronary artery stenosis in normocholesterolemic patients.
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Affiliation(s)
- H Masuoka
- Division of Internal Medicine, National Mie Central Hospital, Hisai, Japan
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28
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Katsuki A, Yano Y, Sumida Y, Ito K, Fujii M, Tsuchihashi K, Hori Y, Nakatani K, Ohhira T, Narita Y, Kuzuhara S, Misaki M, Adachi Y. Significant decreased insulin secretion in a diabetic patient with clinically probable multiple sclerosis. Intern Med 1998; 37:865-9. [PMID: 9840710 DOI: 10.2169/internalmedicine.37.865] [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: 11/06/2022] Open
Abstract
A 39-year-old man with chief complaints of aphasia, disorientation and acalculia was admitted to our hospital. He was diagnosed as a clinically probable case of multiple sclerosis (MS) and his symptoms improved while on steroid pulse therapy. The patient had been diagnosed as having diabetes mellitus 16 years before the onset of MS and his insulin secretion further decreased with time. Slight insulin resistance was observed during a euglycemic hyperinsulinemic clamp study. These results suggested that this patient developed diabetes mellitus mainly due to the decrease of insulin secretion.
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Affiliation(s)
- A Katsuki
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu
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29
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Misaki M, Ueyama Y, Tsukamoto G, Matsumura T. Timing of recombinant human granulocyte colony-stimulating factor administration on neutropenia induced by cyclophosphamide in normal mice. Br J Cancer 1998; 77:884-9. [PMID: 9528829 PMCID: PMC2150101 DOI: 10.1038/bjc.1998.146] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The effects of altering the timing of recombinant human granulocyte colony-stimulating factor (rhG-CSF) administration on neutropenia induced by cyclophosphamide (CPA) were studied experimentally in a mouse model. Experimental mice were divided into three groups: (a) treatment with rhG-CSF after CPA administration (post-treatment group); (b) treatment with rhG-CSF both before and after CPA administration (pre- and post-treatment group); and (c) treatment with saline after CPA administration (control group). The results were as follows. Mice receiving rhG-CSF on the 2 days preceding CPA treatment, in which progenitor cell counts outside the S-phase when CPA was administered were the lowest of all the groups, showed accelerated neutrophil recovery but decreased neutrophil nadirs compared with the control group despite rhG-CSF treatment. The pre- and post-treatment group, consisting of mice who received rhG-CSF treatment on days -4 and -3 before CPA treatment, and in which progenitor cell counts when CPA was administered were increased to greater levels than in the other groups, showed remarkably accelerated neutrophil recovery and the greatest increase in the neutrophil nadirs of all the groups. These results suggested that the kinetics of progenitor cell populations when chemotherapeutic agents were administered seemed to play an important role in neutropenia after chemotherapy, and that not only peripheral neutrophil cell and total progenitor cell counts but also progenitor cell kinetics should be taken into consideration when administering rhG-CSF treatment against the effects of chemotherapy.
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Affiliation(s)
- M Misaki
- Department of Oral and Maxillofacial Surgery II, Okayama University Dental School, Japan
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30
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Yano Y, Ura H, Gabazza EC, Seguchi C, Sumida Y, Misaki M, Shima T. Circulating levels of 7 S domain of type IV collagen and atrial natriuretic peptide in normotensive type 2 diabetic patients with or without retinopathy. Horm Metab Res 1998; 30:103-7. [PMID: 9543694 DOI: 10.1055/s-2007-978845] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Thickening of the basement membrane and other structural alterations of the vascular walls occur frequently in patients with diabetes. The vascular response to atrial natriuretic peptide (ANP) is also altered in these patients. Abnormal vascular response in diabetes may be due to alteration of vascular physicochemical properties induced by accumulation of components of vascular basement membrane. The aim of this study was to evaluate the relationship between circulating levels of the 7 S domain of type IV collagen (7 S-collagen), and ANP in normotensive type 2 diabetic patients with or without retinopathy. Forty-one normotensive type 2 diabetic patients (n = 19 with and n = 22 without retinopathy) and 18 age-matched control subjects participated in the study. Serum 7 S-collagen and plasma ANP levels were measured by radioimmunoassays. Serum 7 S-collagen (4.4 +/- 0.1 vs 3.5 +/- 0.1 ng/ml; p < 0.01) levels and plasma ANP (20.8 +/- 1.0 vs 15.5 +/- 1.0 pg/ml; p < 0.01) were significantly higher in diabetic patients than in normal subjects. Serum 7 S-collagen increased significantly in diabetic patients without retinopathy compared with normal subjects (4.1 +/- 0.1 vs 3.5 +/- 0.1 ng/ml; p < 0.01). Diabetic patients with retinopathy showed significantly higher circulating concentrations of 7 S-collagen (4.6 +/- 0.1 vs 4.1 +/- 0.1 ng/ml; p < 0.01) and ANP (22.9 +/- 1.4 vs 18.9 +/- 1.3 pg/ml; p < 0.05) than those without retinopathy. There was a significant and positive correlation (r = 0.51, p < 0.01) between the circulating levels of 7 S-collagen and ANP in all patients. The results of this investigation showed that increased circulating levels of ANP correlate with the abnormal metabolism of the vascular basement membrane observed in diabetic patients with microangiopathy.
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Affiliation(s)
- Y Yano
- Third Department of Internal Medicine, Mie University School of Medicine, Japan
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31
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Misaki M, Tanaka T, Ezaki J, Sumida Y, Yano Y. [Urinary transferrin]. Nihon Rinsho 1998; 56 Suppl 3:297-302. [PMID: 9513433] [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: 02/06/2023]
Affiliation(s)
- M Misaki
- Department of Internal Medicine, Tsu National Hospital
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32
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Nakao K, Imoto I, Ikemura N, Shibata T, Takaji S, Taguchi Y, Misaki M, Yamauchi K, Yamazaki N. Relation of lactoferrin levels in gastric mucosa with Helicobacter pylori infection and with the degree of gastric inflammation. Am J Gastroenterol 1997; 92:1005-11. [PMID: 9177520] [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: 12/11/2022]
Abstract
OBJECTIVES Lactoferrin (Lf) is an iron-binding glycoprotein present in milk, lacrimae, saliva, and gastroduodenal secretions. In vitro studies disclosed contradicting results regarding the relation of Lf with Helicobacter pylori (HP) infection. This study aimed to investigate the relationship between the gastric mucosal concentration of Lf and HP infection of the stomach. The relationship of the gastric mucosal level of Lf with the gastric mucosal concentration of interleukin-8 (IL-8) and with the intragastric ammonia levels was also assessed. In addition, the gastric mucosal Lf levels before and after irradication of HP infection were also evaluated. METHODS This study was composed of 27 HP-positive and 12 HP-negative patients with chronic gastritis. Gastric mucosal biopsy specimens were obtained from all subjects by endoscopy, and the degree of histological inflammatory changes were assessed according to the Sydney system. The gastric mucosal levels of Lf and IL-8 were measured by immunoassays. Assessment of the effect of therapy on the gastric mucosal level of Lf was performed in 10 patients with HP-associated duodenal ulcer. RESULTS Lf, IL-8, and ammonia levels were significantly higher in patients with HP-positive gastritis compared with those with HP-negative gastritis in both the antrum and the gastric body. Histologically, the degree of inflammatory changes correlated significantly with the Lf levels in the gastric mucosa. Furthermore, the degree of HP colonization was more significant in biopsy samples from the antrum than in those from the corpus of the stomach. The gastric mucosal levels of Lf and IL-8 correlated significantly in the antrum and the gastric body. The ammonia intragastric level significantly correlated with the mucosal Lf level in the antrum and in the gastric body. Therapy significantly decreased the Lf levels in the gastric mucosa of the antrum (p < 0.005) and the gastric body (p < 0.005). CONCLUSION The results of the present investigation showed, for the first time in vivo, that Lf concentration is increased in the biopsy specimens of patients with HP-related gastritis, and that the levels of Lf correlate significantly with the degree of inflammation of the gastric mucosa. The gastric mucosal level of Lf may constitute an excellent marker of HP infection.
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Affiliation(s)
- K Nakao
- Third Department of Internal Medicine, Mie University School of Medicine, the National Tsu Hospital, Japan
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Nakao K, Imoto I, Gabazza EC, Yamauchi K, Yamazaki N, Taguchi Y, Shibata T, Takaji S, Ikemura N, Misaki M. Gastric juice levels of lactoferrin and Helicobacter pylori infection. Scand J Gastroenterol 1997; 32:530-4. [PMID: 9200282 DOI: 10.3109/00365529709025094] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Recently, in vitro studies suggested that lactoferrin (Lf) might play an important role in the physiopathology of Helicobacter pylori-associated gastritis. However, whether Lf is present in the gastric juice and its relationship with H. pylori infection have not as yet been reported. In the present investigation the presence of Lf in gastric juice and its correlation with H. pylori infection were assessed. METHODS This study comprised 30 H. pylori-positive and 14-negative patients with chronic gastritis. Gastric juice levels of Lf were measured with enzyme-linked immunoassays. Gastric juice concentration of Lf was also investigated in accordance with the histologic findings of biopsy specimens in the gastric body and antrum. RESULTS Lf concentration in gastric juice was significantly higher in H. pylori-positive than in -negative patients (P = 0.033). The pH values are known to influence the levels of Lf. However, intragastric Lf levels were also significantly increased in H. pylori-positive patients as compared with H. pylori-negative patients after correcting the Lf levels for pH values (P = 0.029) or after adjusting the pH values of the gastric juice with NaHCO3 solution in both groups of patients (P = 0.0007). In addition, the gastric juice levels of Lf correlated significantly with the gastric mucosal concentrations of Lf in the gastric body (P < 0.005, r = 0.568) and the antrum (P < 0.05, r = 0.401). CONCLUSIONS This study showed for the first time that Lf is present in gastric juice and that it correlates with H. pylori infection. Lf may constitute a good marker for H. pylori-associated gastritis. Although correlation does not prove causation, this study suggests that Lf might play an important role in the physiopathology of H. pylori-associated gastritis.
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Affiliation(s)
- K Nakao
- Third Dept. of Internal Medicine, Mie University School of Medicine, Tsu, Japan
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Abstract
Metabolic alteration of Type IV collagen occurs in micro- or macrovascular basement membrane of diabetic patients. Hypertension, a risk factor for clinical progression of diabetic vascular disease, may influence this metabolic alteration. The object of this study was to evaluate the serum 7S domain of type IV collagen (7S-collagen) levels in patients with essential hypertension and in Type 2 diabetic patients with or without hypertension and to investigate the relationship between the type IV collagen metabolism and the arterial blood pressure. Serum 7S-collagen levels in 18 patients with essential hypertension were significantly higher than in 24 normal subjects (4.2 +/- 0.5 vs 3.6 +/- 0.4 ng ml(-1) p < 0.01). Serum 7S-collagen levels in 28 normotensive diabetic patients (4.2 +/- 0.5 ng ml(-1)) were significantly higher than in normal subjects (p < 0.01). The serum 7S-collagen levels were significantly higher in 22 diabetic patients with hypertension (4.8 +/- 0.6 ng ml(-1)) than in the other groups. There was a significant correlation between the serum 7S-collagen levels and the systolic blood pressure in cases with essential hypertension (r = 0.59, p < 0.001) and in all diabetic patients (r = 0.52, p < 0.001), suggesting that elevation of the systolic blood pressure may influence the type IV collagen metabolism of vascular basement membrane. We conclude that the metabolic alteration of basement membrane occurring in patients with diabetes mellitus may worsen in the presence of high systolic blood pressure.
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Affiliation(s)
- Y Yano
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan
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35
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Sumida Y, Yano Y, Murata K, Goto H, Ura H, Ezaki J, Tsutsumi S, Shirayama K, Misaki M, Shima T. Effect of the calcium channel blocker nilvadipine on urinary albumin excretion in hypertensive microalbuminuric patients with non-insulin-dependent diabetes mellitus. J Int Med Res 1997; 25:117-26. [PMID: 9178143 DOI: 10.1177/030006059702500301] [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: 02/04/2023] Open
Abstract
A 24-week study was conducted to evaluate the effects of the dihydropyridine calcium channel blocker nilvadipine on urinary albumin excretion in eight microalbuminuric hypertensive patients with non-insulin-dependent (type II) diabetes mellitus. Blood pressure and urinary albumin excretion measurements before the administration of nilvadipine (8 mg) were compared with those after 4, 8, 12 and 24 weeks of treatment. No significant changes were observed in the mean values of haemoglobin A1C. Systolic blood pressure was significantly reduced from 174 +/- 23 mmHg before treatment to 144 +/- 13 mmHg after 24 weeks of treatment (P < 0.02). Diastolic blood pressure was significantly reduced from 93 +/- 11 mmHg at baseline to 79 +/- 8 mmHg after 24 weeks of treatment (P < 0.05). Urinary albumin excretion was significantly reduced from 65.4 +/- 37.4 mg/g creatinine at baseline to 51.6 +/- 41.1 mg/g creatinine (P < 0.05) after 4 weeks, and to 39.1 +/- 26.9 mg/g creatinine (P < 0.02) after 24 weeks of treatment. These data suggest that in hypertensive microalbuminuric patients with non-insulin-dependent diabetes mellitus, treatment of hypertension with the calcium blocker nilvadipine may slow the progression of diabetic nephropathy.
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Affiliation(s)
- Y Sumida
- Third Department of Internal Medicine, Mie University School of Medicine, Japan
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Sumida Y, Ura H, Yano Y, Misaki M, Shima T. Abnormal metabolism of type-IV collagen in normotensive non-insulin-dependent diabetes mellitus patients. Horm Res 1997; 48:23-8. [PMID: 9195206 DOI: 10.1159/000185605] [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: 02/04/2023]
Abstract
The objective of this study was to investigate the serum level of the 7S domains of type-IV collagen [IVc(7S)] and its relations with microangiopathy in non-insulin-dependent diabetes mellitus (NIDDM). This study comprised 73 patients with NIDDM that were consulted in our outpatient clinic. Among the 73 NIDDM patients, 43 with normal arterial pressure were selected to assess the relationship between serum levels of 7S collagen and microangiopathy. There was a significant relationship between the serum IVc(7S) levels and the presence of retinopathy and nephropathy. These findings suggest that an increased IVc (7S) concentration may reflect the abnormal collagen metabolism of the vascular basement membrane in NIDDM patients. Column chromatography of the NIDDM patients' sera revealed the heterogeneity of immunoreactive type-IV collagen (7S) and showed that these domains were composed mainly of degradation products of type-IV collagen. These data suggest that degradation of IVc is accelerated in the vascular basement membrane of NIDDM patients.
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Affiliation(s)
- Y Sumida
- Third Department of Internal Medicine, Mie University School of Medicine, Japan
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Kobayashi T, Shintani U, Yamamoto T, Shida S, Isshiki N, Tanaka T, Ohmoto Y, Kitamura M, Kato S, Misaki M. Familial occurrence of electrocardiographic abnormalities of the Brugada-type. Intern Med 1996; 35:637-40. [PMID: 8894738 DOI: 10.2169/internalmedicine.35.637] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Electrocardiographic abnormalities were pointed out in a 51-year-old Japanese male whose major complaint was dizziness. His electrocardiogram showed a complete right bundle branch block, and a prolonged His bundle-ventricle (HV) interval of 100 msec. Two members of his family died of heart disease and 3 members, including a case of sudden death, presented an abnormal electrocardiogram of the Brugada-type with persistent ST segment elevation in the right precordial leads and right bundle branch block. The signal-averaged examination was made in the children of cases that died with the diagnosis of sudden death. Four cases showed a tendency of delay in the HV interval and a positive finding in the late potential. Further studies are necessary to clarify the relationship between electrocardiographic abnormalities of the Brugada-type and atrioventricular conduction disorder as well as to clarify the genetic basis of this disorder.
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Affiliation(s)
- T Kobayashi
- Department of Internal Medicine, Tsu National Hospital, Hisai
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38
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Affiliation(s)
- R E Alcalde
- Department of Oral and Maxillofacial Surgery II, Okayama University Dental School, Japan
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39
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Yanai S, Okada H, Saito K, Kuge Y, Misaki M, Ogawa Y, Toguchi H. Antitumor effect of arterial administration of a medium-chain triglyceride solution of an angiogenesis inhibitor, TNP-470, in rabbits bearing VX-2 carcinoma. Pharm Res 1995; 12:653-7. [PMID: 7479548 DOI: 10.1023/a:1016243105622] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Using rabbits bearing VX-2 carcinoma on the inner side of the leg, we examined the antitumor activity of a medium-chain triglyceride (MCT) solution of an angiogenesis inhibitor, TNP-470 (AGM-1470, 6-O-(N-chloroacetylcarbamoyl)-fumagillol), following administration into the femoral artery feeding the tumor. The MCT solution of TNP-470 (1 and 5 mg) strongly suppressed tumor growth following a single intra-arterial (i.a.) injection 2 or 3 weeks after tumor inoculation. Moreover, remarkable regression of well-developed tumors, those 4 weeks after inoculation, was obtained by i.a. injection of the MCT solution containing 20 mg of TNP-470 without any influence on body weight. The antitumor effects were potentiated by coadministration of doxorubicin or mitomycin C (MMC) in the solution or microspheres containing MMC. In a shell-less chorioallantoic membrane (CAM) assay, angiogenesis was inhibited when a droplet of the MCT solution containing 25 micrograms of TNP-470 was placed on the CAM for 2 days, suggesting that the prolonged antitumor effect resulted from the inhibition of tumor neovascularization by sustained drug release from the preparation. These results indicate that i.a. injection of the MCT solution of TNP-470 is promising for treating well-developed tumors.
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Affiliation(s)
- S Yanai
- DDS Research Laboratories, Takeda Chemical Industries, Ltd., Osaka, Japan
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40
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Hoshino T, Misaki M, Yamamoto M, Shimizu H, Ogawa Y, Toguchi H. In vitro cytotoxicities and in vivo distribution of transferrin-platinum(II) complex. J Pharm Sci 1995; 84:216-21. [PMID: 7738805 DOI: 10.1002/jps.2600840219] [Citation(s) in RCA: 24] [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: 01/26/2023]
Abstract
In vitro cytotoxic studies of protein-bound cis-diamminedichloroplatinum(II) (CDDP) against human epidermoid carcinoma A431 cells showed that transferrin (Tf)-bound CDDP (Tf-Pt, Pt/Tf 7:1 mol/mol), and human serum albumin (HSA)-bound CDDP (HSA-Pt, Pt/HSA 7:1 mol/mol) exerted antiproliferating activities with IC50 values of 7.2 and 85 microM, respectively. Tf-Pt inhibited the binding of 0.2 nM 125I-labeled human diferric transferrin (hTf(Fe)2) to A431 cells with a inhibition constant (Ki) of 42 nM, whereas HSA-Pt did not. In vivo distribution studies showed that hTf(Fe)2, the Ki of which was 5.3 nM to mouse melanoma B16 cells, was eliminated from plasma biexponentially in the B16-bearing and control mice after intravenous injection at a dose of 87 mg/kg, and AUCplasma values were 29 and 39 mg.h/mL, respectively. In the B16-bearing mice the AUCtumor was 5.6 mg.h/mL, while the AUCs of liver, kidney, and spleen were not distinguishable between the B16-bearing and control mice. Subsequently Tf-Pt (Pt/Tf 3:1 mol/mol) and free CDDP solution were administered intravenously to the B16-bearing mice. The systemic circulation of Pt was significantly prolonged by the administration of the complex. In conclusion, Tf could be a promising carrier protein for the transport of Pt to tumors.
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Affiliation(s)
- T Hoshino
- DDS Research Laboratories, Takeda Chemical Industries, Ltd., Osaka, Japan
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41
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Kishimoto K, Kimura T, Misaki M, Yamada Y, Terakado N, Matsumura T. [Method for daily administration of low-dose CDDP and 5-FU combined with radiotherapy for oral squamous cell carcinoma]. Gan To Kagaku Ryoho 1995; 22:111-4. [PMID: 7826064] [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: 01/27/2023]
Abstract
Daily administration of low-dose CDDP and 5-FU combined with radiotherapy was performed in three cases of oral squamous cell carcinoma in aged patients whose general condition was poor. One course of chemotherapy consisted of daily administration of CDDP (10 mg iv, days 1-5) and 5-FU (250-500 mg iv, days 1-5) with radiotherapy (total dose of 60-64 Gy). Two or three courses were performed at some interval. There were no severe side-effects except for mucositis. Tumors disappeared in all three cases, and a complete response was achieved in two cases. The method appeared to be safe and useful for oral squamous cell carcinoma patients of advanced age and poor general condition.
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Affiliation(s)
- K Kishimoto
- Dept. of Oral and Maxillofacial Surgery II, Okayama University Dental School
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42
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Yanai S, Okada H, Misaki M, Saito K, Kuge Y, Ogawa Y, Toguchi H. Antitumor activity of a medium-chain triglyceride solution of the angiogenesis inhibitor TNP-470 (AGM-1470) when administered via the hepatic artery to rats bearing Walker 256 carcinosarcoma in the liver. J Pharmacol Exp Ther 1994; 271:1267-73. [PMID: 7527853] [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: 01/25/2023] Open
Abstract
The antitumor effect of an angiogenesis inhibitor, TNP-470 (AGM-1470, 6-0-(N-chloroacetylcarbamoyl)-fumagillol), administered via the hepatic artery in a medium-chain triglyceride (MCT) solution, in which TNP-470 is very stable, was examined in rats bearing Walker 256 carcinosarcoma in the liver. The MCT solution containing 0.1 mg of TNP-470 completely suppressed tumor growth after a single arterial injection, and the solutions containing 0.5 approximately 5 mg of TNP-470 caused tumor regression function. These antitumor effects lasted for at least 2 weeks. Moreover, the administration of the MCT solution containing 5 mg of TNP-470 also caused remarkable regression of well-developed enlarged tumors 2 weeks after inoculation, indicating potential in the treatment of unresectable hepatic cancer. When the MCT solution containing radiolabeled TNP-470 was injected via the hepatic artery, the initial radioactivity in the tumor was 22 times that in the normal part of the liver and 5.7 times that in the tumor when an aqueous solution of radiolabeled TNP-470 was injected. Also, in the case of the MCT solution, the radioactivity in the tumor was maintained at a relatively high level for over 2 weeks after injection. These results indicate that the remarkable antitumor effect resulted from the selective delivery and prolonged retention of TNP-470 at the tumor site.
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Affiliation(s)
- S Yanai
- DDS Research Laboratories, Pharmaceutical Research Division, Takeda Chemical Industries, Osaka, Japan
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43
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Abstract
Exogenously administered human epidermal growth factor (hEGF) shows a marked dose-dependent plasma disposition in rats. In the present study, total plasma clearance (CLtotal) of hEGF was examined from the viewpoint of hepatic blood flow and accessible EGF receptors in a dosing range of hEGF from 30 to 1000 micrograms/kg. In rats in which down-regulation of EGF receptors caused a reduction in their number (50% below the normal level) (group 1), the CLtotal of hEGF was decreased only at a medium dose (100 micrograms/kg) compared to those in normal rats. In rats in which hepatic intoxication with carbon tetrachloride caused 50% reduction of both EGF receptor number and hepatic blood flow (group 2), CLtotal was decreased at low and medium hEGF doses. The decrease at a low hEGF dose was proportional to the decrease in the hepatic blood flow. In rats with reduced hepatic blood flow caused by hypothermia (group 3), CLtotal was decreased at all hEGF doses examined, and the decrease at a low hEGF dose (50 micrograms/kg) was proportional to the hepatic blood flow. The decreases of CLtotal at a medium hEGF dose in groups 1, 2 and 3 were well accounted for by the decrease of hepatic blood flow and/or EGF receptor number in a well-stirred model.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- T Murakami
- Institute of Pharmaceutical Sciences, Hiroshima University School of Medicine, Japan
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Sumida Y, Matsumura M, Goto H, Murata K, Tsuchihashi K, Misaki M, Shima T. [A case of idiopathic hypoparathyroidism associated with primary hypothyroidism and diabetes mellitus]. Nihon Naibunpi Gakkai Zasshi 1994; 70:609-14. [PMID: 7958110 DOI: 10.1507/endocrine1927.70.6_609] [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] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A 50-year-old man was admitted to our hospital for the evaluation of hypocalcemia and the treatment of diabetes mellitus. Seven months before admission, he sometimes felt thirst and polyuria, and 4 months before admission, he went to a doctor to check his blood glucose and was diagnosed as having diabetes mellitus which had suddenly developed. At that time he was treated with sulfonylurea, but his diabetic control was very poor. At the time of admission to our hospital, the patient's serum calcium (Ca) level was 5.7 mg/dl, phosphorus (P) 5.0 mg/dl, and fasting blood glucose 308 mg/dl, but urinary ketone bodies were not detected. High sensitive assay of parathyroid hormone (HS-PTH), intact PTH and C-terminus PTH concentrations were under the level of detection. TSH level was slightly high (6.1 mu U/ml) with positive antimicrosomal and antithyroglobulin antibodies but thyroid hormone levels were within normal limits. TRH test showed over-response of TSH. Based on Ellsworth-Howard test, we made the diagnosis of idiopathic hypoparathyroidism associated with primary hypothyroidism and diabetes mellitus. He was treated with insulin twice a day and reached good control, and he was also administered 1 alpha-OH-D3 and calcium lactate resulting in an increase of serum Ca level after 2 weeks. These findings suggest that this case may be a polyglandular autoimmune (PGA) syndrome type 1 reported by Neufeld, which is very rare in Japan. The type of diabetes mellitus of this case is controversial. It is, however, necessary to pay attention to the decrease of the patient's insulin-secreting activity because autoimmune disorders are accompanied by this case.
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Affiliation(s)
- Y Sumida
- Third Department of Internal Medicine, Mie University School of Medicine
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45
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Abstract
Although it has been firmly established that D-glucose inhibits glucagon secretion from pancreatic A cells, the regulatory mechanism of glucagon secretion by D-glucose has not been elucidated. To study this regulatory mechanism by D-glucose, the effects of hexoses and their derivatives on glucagon secretion from the A cells of isolated perfused rat pancreas were investigated. When these cells were perfused with D-glucose, D-fructose, D-sorbitol, D-galactose, 2-deoxy-D-glucose, D-gluconic acid sodium salt and D-glucosamine HCl salt, glucagon secretion was significantly inhibited. None of the hexoses or their derivatives tested were found to stimulate glucagon secretion. The effects of these sugars on glucagon secretion were independent of their metabolism in the cells. From the findings that the sugars both metabolized and unmetabolized in the cells demonstrated comparable inhibition of glucagon secretion from the isolated perfused rat pancreas, it is speculated that the recognition system for these sugars may be probably present on the A cell membrane and responsible for mediating these inhibitory effects of glucagon secretion.
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Affiliation(s)
- Y Sumida
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan
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46
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Abstract
The effects produced in vitro by minocycline (MINO), aminobenzyl penicillin (ABPC) and cefotiam (CTM) on polymorphonuclear leukocytes (PMN) chemotaxis were investigated in this study using the Boyden chamber technique and polarization assay. The following results were obtained: CTM brought about a significant increase of PMN chemotaxis at the therapeutic dose (10, 100 micrograms/ml), MINO reduced PMN chemotaxis significantly at a concentration as low as 1 microgram/ml and ABPC did not influence PMN chemotaxis at concentrations up to 100 micrograms/ml in both methods. Furthermore, using a checkerboard assay, it was shown that CTM worked as a chemokinetic factor.
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Affiliation(s)
- Y Ueyama
- Department of Oral and Maxillofacial Surgery II, Okayama University Dental School, Japan
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47
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Oh M, Inui H, Misaki M, Yamaguchi M. Environmental effects on the room temperature ductility of polysynthetically twinned (PST) crystals of TiAl. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0956-7151(93)90364-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Murakami T, Misaki M, Kojima Y, Yamada M, Yuki M, Higashi Y, Amagase H, Fuwa T, Yata N. Effect of absorption promoters on subcutaneous absorption of human epidermal growth factor in rats. J Pharm Sci 1993; 82:236-9. [PMID: 7680713 DOI: 10.1002/jps.2600820303] [Citation(s) in RCA: 9] [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: 01/26/2023]
Abstract
Subcutaneous administration of human epidermal growth factor (hEGF) to rats gave a significantly smaller value of area under the curve (AUC) of concentration in plasma of immunoreactive hEGF versus time than intravenous administration, probably because the slow entry rate into the blood circulation and consequently the enzymic degradation of hEGF at the injection site. In the present study, absorption promoters such as sodium caprate, N-acylamino acids, disodium ethylenediamine-tetraacetate (EDTA), and sodium glycocholate were used because they were expected to inhibit the enzymic degradation of hEGF at the injection site and to facilitate the entry of hEGF into the blood circulation. Coadministration of an absorption promoter with hEGF significantly increased the entry rate and AUC value of immunoreactive hEGF compared with the case without the absorption promoter. The enzymic degradation of hEGF in the supernatant of the rat subcutaneous tissue homogenates and in the buffer solution containing leucine aminopeptidase or protease was markedly inhibited by the presence of the absorption promoters except EDTA. On the other hand, only EDTA increased the initial entry rate of FITC-dextran (M(r), 4000), which is not metabolized at the injection site, although all absorption promoters including EDTA markedly increased the extravasation of Evans blue. Thus, the increased subcutaneous bioavailability of hEGF in the presence of absorption promoters (except EDTA) was mainly attributed to the inhibitory effect of absorption promoters against the enzymic degradation of hEGF at the subcutaneous tissues.
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Affiliation(s)
- T Murakami
- Institute of Pharmaceutical Sciences, Hiroshima University School of Medicine, Japan
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49
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Shima T, Yano Y, Goto H, Misaki M. Increased Concentrations of Type IV (7 S) Collagen in Sera of Hyperthyroid Patients with Graves Disease. Clin Chem 1992. [DOI: 10.1093/clinchem/38.9.1843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Serum concentrations of type IV collagen (7 S) were determined in 29 patients with untreated hyperthyroidism and 30 healthy subjects. Serum 7 S collagen was significantly higher (P less than 0.0001) in the hyperthyroid patients (6.3, SD 1.3, micrograms/L) than in the healthy control subjects (3.9, SD 0.6, micrograms/L). No difference in serum concentrations of 7 S collagen were observed between patients with normal liver function and those with abnormal liver function. Serum concentrations of 7 S collagen correlated positively with serum concentrations of free triiodothyronine (r = 0.41, P less than 0.05). In the hyperthyroid patients, 7 S collagen concentrations in serum gradually fell into the normal range as thyroid function became normalized. Thus, hyperthyroidism is one of the diseases in which serum concentrations of 7 S collagen are increased.
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Affiliation(s)
- T Shima
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan
| | - Y Yano
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan
| | - H Goto
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan
| | - M Misaki
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan
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50
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Shima T, Yano Y, Goto H, Misaki M. Increased concentrations of type IV (7 S) collagen in sera of hyperthyroid patients with Graves disease. Clin Chem 1992; 38:1843-6. [PMID: 1526023] [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: 12/27/2022]
Abstract
Serum concentrations of type IV collagen (7 S) were determined in 29 patients with untreated hyperthyroidism and 30 healthy subjects. Serum 7 S collagen was significantly higher (P less than 0.0001) in the hyperthyroid patients (6.3, SD 1.3, micrograms/L) than in the healthy control subjects (3.9, SD 0.6, micrograms/L). No difference in serum concentrations of 7 S collagen were observed between patients with normal liver function and those with abnormal liver function. Serum concentrations of 7 S collagen correlated positively with serum concentrations of free triiodothyronine (r = 0.41, P less than 0.05). In the hyperthyroid patients, 7 S collagen concentrations in serum gradually fell into the normal range as thyroid function became normalized. Thus, hyperthyroidism is one of the diseases in which serum concentrations of 7 S collagen are increased.
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Affiliation(s)
- T Shima
- Third Department of Internal Medicine, Mie University School of Medicine, Tsu, Japan
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