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Sakamoto S, Baba K, Wakasa S, Yanagishita S, Irishio M, Yanagishita T, Yoshisako Y, Nakatani Y, Kataoka T, Fukuda D. Unique Extraction of a Fractured Pacemaker Lead Adhered to the Spermatic Vein. JACC Case Rep 2024; 29:102160. [PMID: 38264307 PMCID: PMC10801801 DOI: 10.1016/j.jaccas.2023.102160] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/16/2023] [Accepted: 11/15/2023] [Indexed: 01/25/2024]
Abstract
Transvenous lead extraction has been increasingly recognized as a safe and effective method of lead extraction, but there are only few references for extracting leads migrating outside the heart. We present a successful extraction of a fractured pacemaker lead from the spermatic vein using several approaches and multiple tools.
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Affiliation(s)
- Shogo Sakamoto
- Department of Cardiovascular Medicine, Bellland General Hospital, Naka-ku, Sakai, Osaka, Japan
| | - Kenji Baba
- Department of Cardiovascular Medicine, Bellland General Hospital, Naka-ku, Sakai, Osaka, Japan
| | - Shiho Wakasa
- Department of Cardiovascular Medicine, Bellland General Hospital, Naka-ku, Sakai, Osaka, Japan
| | - Shiori Yanagishita
- Department of Cardiovascular Medicine, Bellland General Hospital, Naka-ku, Sakai, Osaka, Japan
| | - Moritoshi Irishio
- Department of Cardiovascular Medicine, Bellland General Hospital, Naka-ku, Sakai, Osaka, Japan
| | - Tomoya Yanagishita
- Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Yuta Yoshisako
- Department of Cardiovascular Medicine, Bellland General Hospital, Naka-ku, Sakai, Osaka, Japan
| | - Yoshihiro Nakatani
- Department of Cardiovascular Medicine, Bellland General Hospital, Naka-ku, Sakai, Osaka, Japan
| | - Toru Kataoka
- Department of Cardiovascular Medicine, Bellland General Hospital, Naka-ku, Sakai, Osaka, Japan
| | - Daiju Fukuda
- Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, Abeno-ku, Osaka, Japan
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Hayashi H, Ito A, Toyoda N, Yanagishita T, Ito A, T KA, Nakatsuji K, Ogawa M, Ishikawa S, Yoshiyama T, Iwata S, Izumiya Y, Fukuda D. PS-C02-3: GREATER BLOOD PRESSURE VARIABILITY MEASURED BY 24-HOUR AMBULATORY BLOOD PRESSURE MONITORING PREDICTS THE RECURRENCE AFTER ATRIAL FIBRILLATION CATHETER ABLATION. J Hypertens 2023. [DOI: 10.1097/01.hjh.0000914520.58160.d5] [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: 01/13/2023]
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Yanagishita T, Sakamoto S, Yoshisako Y, Sasaki K, Nakatsuji T, Tamura K, Iguchi T, Kataoka T, Izumiya Y, Yoshiyama M. An Unexpected Complication of Subcutaneous ICD Implantation and its Successful Management. JACC Case Rep 2020; 2:889-893. [PMID: 34317375 PMCID: PMC8302020 DOI: 10.1016/j.jaccas.2020.04.044] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 04/15/2020] [Accepted: 04/21/2020] [Indexed: 11/26/2022]
Abstract
Subcutaneous implantable cardioverter-defibrillator implantation is known to be a safe procedure. However, inappropriate lead insertion can lead to serious complications. We present a case where an inappropriate lead placement resulted in puncturing the lung parenchyma, and successful management of the lead-related pneumothorax through thoracoscopic lead removal and partial lung resection. (Level of Difficulty: Intermediate.)
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Kondo T, Nagao S, Miyazaki H, Yanagishita T, Masuda H. Tuning of the interval in a nanohole array of anodic porous alumina through deformation of polymer templates. RSC Adv 2017. [DOI: 10.1039/c7ra08346g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new type of process for the fabrication of ideally ordered anodic porous alumina with the desired hole interval is demonstrated.
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Affiliation(s)
- T. Kondo
- Department of Applied Chemistry
- Tokyo Metropolitan University
- Tokyo 192-0397
- Japan
| | - S. Nagao
- Department of Applied Chemistry
- Tokyo Metropolitan University
- Tokyo 192-0397
- Japan
| | - H. Miyazaki
- Department of Applied Chemistry
- Tokyo Metropolitan University
- Tokyo 192-0397
- Japan
| | - T. Yanagishita
- Department of Applied Chemistry
- Tokyo Metropolitan University
- Tokyo 192-0397
- Japan
| | - H. Masuda
- Department of Applied Chemistry
- Tokyo Metropolitan University
- Tokyo 192-0397
- Japan
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Inukai Y, Iwase S, Yanagishita T, Tamada Y, Watanabe D, Sato M, Sugenoya J. Gustatory sweating pathways are different from thermal sweating pathways: An interpretation from the findings of a case of hemifacial gustatory sweating deficit. Auton Neurosci 2015. [DOI: 10.1016/j.autneu.2015.07.038] [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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6
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Ohshima Y, Yanagishita T, Ito K, Tamada Y, Nishimura N, Inukai Y, Iwase S, Watanabe D. A case of acquired idiopathic generalized anhidrosis in a 2-year-old infant. J Eur Acad Dermatol Venereol 2014; 29:1446-8. [PMID: 24698553 DOI: 10.1111/jdv.12499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 02/06/2014] [Accepted: 03/03/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Y Ohshima
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - T Yanagishita
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - K Ito
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Y Tamada
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - N Nishimura
- Department of Physiology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Y Inukai
- Department of Physiology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - S Iwase
- Department of Physiology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - D Watanabe
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
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Affiliation(s)
- T. Yanagishita
- Department of Dermatology; Aichi Medical University School of Medicine; Aichi Japan
| | - Y. Tamada
- Department of Dermatology; Aichi Medical University School of Medicine; Aichi Japan
| | - D. Watanabe
- Department of Dermatology; Aichi Medical University School of Medicine; Aichi Japan
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Yanagishita T, Sugiura K, Kawamoto Y, Ito K, Marubashi Y, Taguchi N, Akiyama M, Watanabe D. A case of Björnstad syndrome caused by novel compound heterozygous mutations in the BCS1L gene. Br J Dermatol 2013; 170:970-3. [PMID: 24236502 DOI: 10.1111/bjd.12736] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T Yanagishita
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
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Ohshima Y, Yanagishita T, Ito K, Tamada Y, Nishimura N, Inukai Y, Iwase S, Sugenoya J, Watanabe D. Treatment of patients with acquired idiopathic generalized anhidrosis. Br J Dermatol 2012; 168:430-2. [PMID: 22709381 DOI: 10.1111/j.1365-2133.2012.11112.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nakano A, Tamada Y, Watanabe D, Ishida N, Yamashita N, Kuhara T, Yanagishita T, Kawamura C, Akita Y, Matsumoto Y. A pilot study to assess the efficacy of photodynamic therapy for Japanese patients with actinic keratosis in relation to lesion size and histological severity. Photodermatology, Photoimmunology & Photomedicine 2009; 25:37-40. [DOI: 10.1111/j.1600-0781.2009.00401.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ishida N, Watanabe D, Akita Y, Nakano A, Yamashita N, Kuhara T, Yanagishita T, Takeo T, Tamada Y, Matsumoto Y. Etretinate enhances the susceptibility of human skin squamous cell carcinoma cells to 5-aminolaevulic acid-based photodynamic therapy. Clin Exp Dermatol 2008; 34:385-9. [PMID: 19077103 DOI: 10.1111/j.1365-2230.2008.03003.x] [Citation(s) in RCA: 13] [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: 11/30/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) with 5-aminolaevulinic acid (5-ALA) is a noninvasive and effective treatment for superficial skin cancers. Etretinate, a derivate of vitamin A, with the chemical formula ethyl(2E,4E,6E,8E)-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-2,4,6,8-nona-tetraenoate, has been reported to have antitumour effects and to regulate the proliferation and differentiation of skin cancers. OBJECTIVE In order to develop more efficient PDT, we investigated whether etretinate enhanced the cytotoxic action of ALA-based PDT against human squamous cell carcinoma cell line, HSC-5. METHOD The in vitro cytotoxicity was measured using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Apoptotic cells were detected by double-staining with fluorescent annexin V and propidium iodide. Intracellular protoporphyrin IX (PpIX) converted from exogenous ALA was measured by a fluorescence meter. RESULTS HSC-5 cells pretreated with a nontoxic concentration of etretinate became more susceptible to the cytotoxic action of ALA-based PDT. Etretinate-pretreated cells underwent apoptosis in response to ALA-based PDT. Etretinate pretreatment resulted in enhanced accumulation of ALA-dependent intracellular PpIX. CONCLUSIONS The results suggest that etretinate enhances the susceptibility of HSC-5 cells to ALA-based PDT via the intracellular increase of ALA-dependent PpIX. Etretinate might be useful for improvement of ALA-based PDT.
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Affiliation(s)
- N Ishida
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Aich, Japan.
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Itoh S, Yanagishita T, Aoki S, Koba S, Iwata T, Ishioka H, Arata H, Mukae S, Geshi E, Konno N, Katagiri T, Utsumi H. Generation of free radicals and the damage done to the sarcoplasmic reticulum during reperfusion injury following brief ischemia in the canine heart. Jpn Circ J 1999; 63:373-8. [PMID: 10943617 DOI: 10.1253/jcj.63.373] [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: 11/09/2022]
Abstract
Free radical generation was studied by the electron spin resonance (ESR) technique using alpha-phenyl N tert butyl nitrone (PBN) in a brief ischemia-reperfusion model of the canine heart, and correlated with biochemical changes of the sarcoplasmic reticulum (SR). ESR spectra (aH=0.3-0.4mT, aN=1.43-1.58mT) were observed as PBN spin adducts, which peaked at levels 5-fold above the control levels at 5 min after reperfusion. The simulated coupling constants of PBN spin adducts suggested that the sample should contain at least 2 carbon-centered radicals at 5 min after reperfusion (radical A: aH=0.350mT, aN=1.485mT; radical B: aH=0.370mT, aN=1.615 mT). At this time point, a significant reduction in Ca-ATPase activity of the SR was found without degradation of the major ATPase protein. Superoxide dismutase (SOD) significantly reduced the intensity of the PBN spin adduct signals and preserved the Ca-ATPase activity of the SR to 80% of the control level. Reperfusion injury after brief ischemia may be the result of inactivation of intracellular Ca-ATPase by free radicals generated during reperfusion, and SOD contributes to the protective effect by scavenging the radicals.
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Affiliation(s)
- S Itoh
- The Third Department of Internal Medicine, School of Medicine, Showa University, Tokyo, Japan
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Kuwahara Y, Yanagishita T, Konno N, Katagiri T. Changes in microsomal membrane phospholipids and fatty acids and in activities of membrane-bound enzyme in diabetic rat heart. Basic Res Cardiol 1997; 92:214-22. [PMID: 9342428 DOI: 10.1007/bf00788516] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Diabetes mellitus is associated with alterations in lipid metabolism and cardiac dysfunction despite an absence of coronary arteriosclerotic changes. To investigate mechanisms of cardiac dysfunction in diabetic cardiomyopathy, we studied the relation between activities of membrane-bound enzymes and surrounding phospholipids in rats with diabetes induced with a single intravenous injection of streptozotocin (65 mg/kg). We found that total phospholipid content of sarcoplasmic reticulum membrane increased significantly 8 weeks after treatment with streptozotocin owing to increases in phosphatidylcholine and phosphatidylethanolamine, a decrease in arachidonic acid, and an increase in docosahexaenoic acid in the early stage of diabetes. Sarcolemmal Na+/K(+)-ATPase activity and the number of receptors decreased in isolated cardiomyocytes of diabetic rats 8 weeks after streptozotocin administration. The Ca2+ uptake of both sarcoplasmic reticulum and mitochondria decreased simultaneously in permeabilized, isolated cardiomyocytes from diabetic rats. The depression of membrane-bound enzyme activities was correlated with alterations in phospholipids, which are closely related to the microenvironment of membrane-bound enzymes and influence intracellular Ca2+ metabolism. Because these changes in phospholipids and fatty acids were reversible with insulin therapy, they are diabetes-specific and might be a cause of cardiac dysfunction in diabetes.
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Affiliation(s)
- Y Kuwahara
- Showa University School of Medicine, Third Department of Internal Medicine, Tokyo, Japan
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Watanabe T, Yanagishita T, Konno N, Geshi E, Katagiri T. Reversal of early metabolic dysfunction in hypertensive rat left-ventricular myocytes by angiotensin-converting enzyme inhibition. Jpn Heart J 1997; 38:503-14. [PMID: 9350147 DOI: 10.1536/ihj.38.503] [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: 02/05/2023]
Abstract
We evaluated the effects of angiotensin-converting enzyme (ACE) inhibition on metabolic changes in myocardial organelles, myocardial hypertrophy, and interstitial fibrosis in the early stage of hypertension. An ACE inhibitor, imidapril (2.5 mg/kg per day), a calcium-channel blocker, diltiazem (30 mg/kg per day), or vehicle was given to spontaneously hypertensive rats (SHRs) from 10 to 18 weeks of age. Single myocytes were isolated enzymatically from the left ventricles of these SHRs and normotensive Wistar-Kyoto (WKY) controls at 18 weeks of age. In single ventricular myocytes, enzyme activities in the sarcoplasmic reticulum (SR) and the sarcolemma (SL) and the mitochondrial respiratory control ratio (RCR) were determined. In 18-week-old SHRs receiving vehicle, myocardial hypertrophy and interstitial fibrosis developed, and SR Ca2+ AT-Pase activity and the mitochondrial RCR were significantly lower and SL Na+, K(+)-ATPase activity was significantly higher than in age-matched WKYs. However, compared with diltiazem, imidapril was better able to prevent the development of myocardial hypertrophy and interstitial fibrosis, to improve SR Ca(2+)-ATPase activity and the mitochondrial RCR, and to increase SL Na+, K(+)-ATPase activity. These results suggest that ACE inhibition can prevent the development of morphologic changes associated with hypertension-induced left ventricular remodeling, such as myocardial hypertrophy and interstitial fibrosis, and can counteract ongoing dysfunction of organelle metabolism early in the development of hypertension.
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Affiliation(s)
- T Watanabe
- Third Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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Mukae S, Yanagishita T, Geshi E, Umetsu K, Tomita M, Itoh S, Konno N, Katagiri T. The effects of dopamine, dobutamine and amrinone on mitochondrial function in cardiogenic shock. Jpn Heart J 1997; 38:515-29. [PMID: 9350148 DOI: 10.1536/ihj.38.515] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The impairment of mitochondrial in non-infarcted myocardium under cardiogenic shock complicated by acute myocardial infarction was studied. We induced acute myocardial infarction in dogs by ligating the circumflex branch of the left coronary artery (LCX). On basis of left ventricular systolic pressure (LVPs) after 60 minutes, we divided the dogs into two groups: a group in which LVPs fell to below 70% of the pre-LCX ligation level, and a Control group in which LVPs remained more than 90%. The former group was further divided into four subgroups, depending on infusion of dopamine, dobutamine, amrinone or saline after 90 minutes. Mitochondria were prepared and mitochondrial respiratory activity determined. In the Saline group, hemodynamics became reduced to less than 70% of the preligation level after 120 minutes, however, in the Dopamine and Dobutamine groups, hemodynamics became restored to the preligation level. In the Amrinone group, LVPs decreased slightly, while cardiac output, LV Max. dp/dt and myocardial blood flow increased. In the Saline group, mitochondria in the non-infarcted myocardium functioned at a lower level of activity than that of the Control group. However, in the Dopamine, Dobutamine, and Amrinone groups, the mitochondria functioned at a higher level. Electron microscopy revealed mitochondrial damage in the Saline group only. The results indicate that an energy production disorder in the non-infarcted myocardium may have pathogenetic implications in cardiogenic shock associated with acute myocardial infarction, while dopamine, dobutamine, and amrinone improve mitochondrial function, and ultimately improve cardiac function.
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Affiliation(s)
- S Mukae
- Third Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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Yanagishita T, Tomita M, Itoh S, Mukae S, Arata H, Ishioka H, Geshi E, Konno N, Katagiri T. Protective effect of captopril on ischemic myocardium. Jpn Circ J 1997; 61:161-9. [PMID: 9070972 DOI: 10.1253/jcj.61.161] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The protective effect and mechanism of action of the angiotensin-converting enzyme inhibitor (ACE-I) captopril was investigated in organelles from ischemic myocardial cells in a canine coronary ligation model. Sarcoplasmic reticulum (SR) and mitochondrial fractions were extracted from ischemic and nonischemic myocardial cells from captopril- and saline-treated (control) hearts. Heart rate, cardiac output, and right ventricular systolic blood pressure were similar in the captopril-treated and control groups. Left ventricular systolic blood pressure (LVPs) decreased gradually to 89% of the baseline value after captopril administration, and to 78% of the baseline value after ligation. Ca-ATPase activity in the SR, the respiratory control ratio (RCR) in the mitochondria, and dinitrophenol (DNP)-stimulated ATPase activity were significantly higher in ischemic myocardium from the captopril-treated group than from the saline-treated (control) group. The SH group content of both organelles was higher in the captopril-treated group. Our results suggest that, in addition to their hemodynamic effects, ACE-I agents containing SH groups protect the myocardium from ischemic damage by preventing enzyme oxidation.
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Affiliation(s)
- T Yanagishita
- Third Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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Kihira Y, Kimura M, Nishi K, Sakai T, Yanagishita T, Takeyama Y, Katagiri K, Hashimoto T, Matsui S, Murata S. [Case of aortic occlusion caused by aortic dissection: recanalization by multiple fenestrations]. Nihon Naika Gakkai Zasshi 1996; 85:2081-2. [PMID: 9036177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Choi-Miura NH, Sano Y, Oda E, Nakano Y, Tobe T, Yanagishita T, Taniyama M, Katagiri T, Tomita M. Purification and characterization of a novel glycoprotein which has significant homology to heavy chains of inter-alpha-trypsin inhibitor family from human plasma. J Biochem 1995; 117:400-7. [PMID: 7541790 DOI: 10.1093/jb/117.2.400] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Plasmapheresis with a dextran sulfate column is a treatment for patients with hypercholesteremia. When proteins bound to the column during the treatment were fractionated to prepare some known proteins, we found a 57 kDa glycoprotein designated GP57 which showed a new N-terminal amino acid sequence. Western-blot analysis of human plasma revealed that only a 120 kDa protein, GP120, reacted with anti-GP57 antibody. Since GP120 and GP57 had an identical N-terminal amino acid sequence, GP120 is probably the intact form of GP57. The isoelectric point of GP120 was 6.8. N-Glycanase treatment decreased the molecular weight of GP120 by 15 kDa. Neuraminidase and O-glycanase, however, did not affect the molecular weight. Amino acid sequence analyses of the lysylendopeptidase digest of GP120 revealed significant homology to the heavy chains of inter-alpha-trypsin inhibitor (ITI) family. Since GP120 showed no bikunin sequence, and chondroitinase treatment and alkaline treatment of GP120 did not affect its molecular weight, we concluded that GP120 was not a complex with bikunin. We designated GP120 as IHRP (ITI heavy chain-related protein).
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Affiliation(s)
- N H Choi-Miura
- Department of Physiological Chemistry, School of Pharmaceutical Sciences, Showa University, Tokyo
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Tanno F, Akiyama K, Geshi E, Yanagishita T, Konno N, Katagiri T. Impairment of sarcolemmal permeability in the acute ischemic myocardium--a study with ionic lanthanum probe method. Jpn Circ J 1992; 56:911-20. [PMID: 1404846 DOI: 10.1253/jcj.56.911] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Impairment of sarcolemmal permeability after the initiation of acute ischemic myocardial injury was studied using an ionic lanthanum (La3+) probe in electron microscopy. Acute ischemic myocardium was induced by ligation of the left anterior descending coronary artery in dogs. In normal cardiac myocytes La is localized exclusively in the extracellular space. i.e. on the glycocalyx, in the T-system and in intercalated discs, with normal fine structures. In ischemic myocardial cells, La deposits were found in the cytosolic space in 22% of subendocardial cells with mild to moderate, but non-necrotic, fine structural changes as early as 30 min. The number of myocytes with La deposition increased with advancing ischemic injury, and necrotic fine structural changes were recognized following ischemia for 60 min. These results indicate that deposition of La occurs before the appearance of irreversible morphologic alterations in ischemic myocardial cells, and suggest an increased permeability of the sarcolemma for Ca2+ and the development of degradation of plasma membrane integrity.
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Affiliation(s)
- F Tanno
- Third Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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Yanagishita T, Tomita M, Itoh S, Mukae S, Koba S, Suzuki H, Arata H, Ishioka H, Geshi E, Konno N, Katagiri T. Protective effect of captopril on acute ischemic myocardium. J Mol Cell Cardiol 1992. [DOI: 10.1016/0022-2828(92)90594-p] [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: 10/26/2022]
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Tomita M, Mukae S, Itoh S, Suzuki H, Koba S, Umetsu K, Geshi E, Konno N, Yanagishita T, Katagiri T. Metabolic impairment of mitochondorial function in diabetic rat heart and effect of insulin treatment. J Mol Cell Cardiol 1992. [DOI: 10.1016/0022-2828(92)90707-7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Itoh S, Yanagishita T, Tomita M, Mukae S, Koba S, Suzuki S, Geshi E, Konno N, Katagiri T, Utsumi H, Hawada A. Experimental study in reperfusion injury on acute myocardial ischemia. J Mol Cell Cardiol 1992. [DOI: 10.1016/0022-2828(92)90459-d] [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: 10/26/2022]
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Itoh S, Yanagishita T, Mukae S, Konno N, Katagiri T. Study on reperfusion injury on sarcoplasmic reticulum in acute myocardial ischemia. Jpn Circ J 1992; 56:384-91. [PMID: 1533689 DOI: 10.1253/jcj.56.384] [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] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Reperfusion injury in early myocardial ischemia was studied in the dog with special reference to sarcoplasmic reticulum (SR) and contraction bands. Acute myocardial ischemia (I) was induced by occlusion of the left anterior descending coronary artery (LAD) for 10, 20 and 30 min followed by reperfusion for 15 min (R). Ca(++)-ATPase activity of SR in 10-min-R-Group was significantly reduced to 60% of control activity, but activity of 10-min-I-Group remained near the control level in subendomyocardium (Endo). ATPase activity in 30-min-I-Group diminished to 60% of control activity in Endo and it was similar for 30-min-R-Group. In ischemic myocardium, composition of major ATPase protein decreased significantly in 30-min-I-Group and similar reduction was observed in 20-min-R-Group in Endo. In morphology proportion of appearance of contraction bands in Endo was significantly increased in 20-min or longer-R-Groups. These results suggest that reperfusion injury is likely to occur when coronary artery is reflowed after 10 min of ischemia. This may be caused by increased intracellular Ca++ at a very early stage of reperfusion period, and reperfusion injury may be induced due to acceleration in the necrotic process of the membrane system in the myocytes during ischemia.
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Affiliation(s)
- S Itoh
- Third Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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Itoh S, Yanagishita T, Tomita M, Mukae S, Suwa Y, Umetsu K, Geshi E, Katagiri T. Effect of reperfusion on sarcoplasmic reticulum in acute myocardial ischemia. J Mol Cell Cardiol 1990. [DOI: 10.1016/0022-2828(90)91653-o] [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: 10/26/2022]
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Yanagishita T, Matsuoka T, Kako KJ. Pharmacological intervention in oxidant-induced calcium pump dysfunction of dog heart. Biochem Int 1989; 18:1111-9. [PMID: 2546558] [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: 01/01/2023]
Abstract
Micromolar concentrations of HOCl, an oxidant produced by activated neutrophils, inhibited Ca2+ uptake and Ca2+ATPase of isolated dog heart sarcoplasmic reticulum (SR). DTT antagonized completely the HOCl effect only when it was given within 5 min after the addition of HOCl. When the pharmacological intervention was delayed, the recovery with DTT was not complete, and administration of DTT 30 min after the start of HOCl's reaction with SR resulted in only a small improvement in SR Ca2+ uptake. Although H2O2 and Fe ion-chelate (a free radical-generating procedure) also inhibited Ca2+ uptake and ATPase, the concentrations required were very large. The response of cardiac sarcolemmal and skeletal muscle SR calcium pumps to oxidants was similar to that of the cardiac SR calcium pump.
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Affiliation(s)
- T Yanagishita
- Department of Physiology, University of Ottawa, School of Medicine, Ontario, Canada
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Kaminishi K, Yanagishita T, Kako KJ. Oxidant injury to isolated heart cells. Can J Cardiol 1989; 5:168-74. [PMID: 2720482] [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: 01/02/2023] Open
Abstract
Recent evidence suggests that free radicals are generated in the heart during the reperfusion which follows ischemia. Intracellular accumulation of calcium has been postulated to be an important pathogenic factor in a number of disease states, including reperfusion injury. Therefore, in this study, the effects of various oxidants on calcium uptake by isolated rat heart cells were investigated. Ammonium persulphate, t-butyl hydroperoxide and phenazine methosulphate increased the number of cells in contracture in both a concentration dependent and time dependent manner, while 45Ca content of cardiomyocytes was decreased by oxidant in proportion to its concentration. Carbonyl cyanide m-chlorophenyl-hydrazone (CCCP) dependent (mitochondrial) and CCCP independent (sarcoplasmic reticulum) 45Ca contents in chemically skinned myocytes were reduced by the oxidants. By contrast, hydrogen peroxide raised 45Ca content of cardiomyocytes and did not reduce sarcoplasmic reticulum 45Ca content, although mitochondrial 45Ca content was decreased. Release of 45Ca from mitochondria and sarcoplasmic reticulum in saponin treated myocytes was accelerated by hypochlorous acid and hydrogen peroxide. The authors conclude that oxidants other than hydrogen peroxide inhibited intracellular uptake of calcium and accelerated calcium release, thus raising the cytosolic calcium concentration and causing cell contracture. The net influx of calcium across sarcolemmal membrane was decreased by these oxidants.
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Affiliation(s)
- K Kaminishi
- Department of Physiology, University of Ottawa, School of Medicine, Ontario
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Kaminishi T, Matsuoka T, Yanagishita T, Kako KJ. Increase vs. decrease of calcium uptake by isolated heart cells induced by H2O2 vs. HOCl. Am J Physiol 1989; 256:C598-607. [PMID: 2538066 DOI: 10.1152/ajpcell.1989.256.3.c598] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Adult rat heart myocytes were labeled rapidly with exogenous [45Ca2+]. Addition of 2.5 mM H2O2 to the heart cell suspension raised the content of rapidly exchangeable intracellular Ca2+ twofold, whereas addition of 1-30 mM HOCl decreased the Ca2+ content. The H2O2-induced increase in Ca2+ content was dependent on the medium Na+, pH, and temperature but was not significantly affected by addition of verapamil, diltiazem, amiloride, or 3-aminobenzamide. The [3H]ouabain binding to myocytes was suppressed by H2O2, whereas the Ca2+ efflux from myocytes was not influenced. An uncoupler, carbonyl cyanide m-chlorophenylhydrazone, reduced Ca2+ content, implying that the H2O2-induced change in Ca2+ content was not directly related to ATP depletion. On the other hand, the H2O2-induced Ca2+ accumulation in myocytes was prevented by deferoxamine or o-phenanthroline. These results suggest that H2O2 inhibited Na+-K+-ATPase, resulting in an increase in intracellular Na+ concentration and stimulation of sarcolemmal Na+-Ca2+ exchange activity, which caused a transient net Ca2+ influx into myocytes. By contrast, HOCl decreased the Ca2+ content of the rapidly exchangeable pool below control levels and this action of HOCl was antagonized by 1,4-dithiothreitol. HOCl accelerated Ca2+ efflux from myocytes. Ca2+ uptake and Ca2+-ATPase of the isolated sarcoplasmic reticular (SR) fraction were highly sensitive to the action of HOCl. Ca2+ uptake by intracellular sites, studied with myocytes permeabilized with digitonin, was inhibited by both H2O2 and HOCl. Thus these results suggest that HOCl inhibits the SR Ca2+ pump, resulting in the observed acceleration of Ca2+ efflux from and decline in Ca2+ content of myocytes.
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Affiliation(s)
- T Kaminishi
- Department of Physiology, University of Ottawa, School of Medicine, Ontario, Canada
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Abstract
Our study demonstrated that the Na,K,ATPase activity and ouabain binding sites were reduced by oxidants. Sarcolemmal calcium transport was also inhibited by hydrogen peroxide and HOC1. The action of HOC1 on the sarcolemmal functions was 2-3 orders of magnitude more powerful than that of hydrogen peroxide. Effects of hydrogen peroxide consisted of two components, i.e., the first, highly sensitive one, most probably mediated by Fe-catalyzed, site-specific free radical formation, and the second, less potent action by (high concentrations of) hydrogen peroxide. Finally, very low concentrations of hydrogen peroxide potentiated Na,K,ATPase activities when assayed using myocytes.
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Affiliation(s)
- T Matsuoka
- Department of Physiology, University of Ottawa, Ontario, Canada
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Abstract
1. Development of acute ischemic myocardial injury was studied in mongrel dogs, induced by ligation of left anterior descending coronary artery (LAD), by biochemical analysis of myocardial fractions such as sarcoplasmic reticulum (SR) and mitochondria (Mt) and by electron microscopic observation of ischemic myocardial cells with lanthanum probe method. 2. Irreversible injury of ischemic myocardium initiated in subendocardial muscle as early as 20 min after occlusion of LAD as expressed degradation of major ATPase protein and phosphatidylcholine and phosphatidylethanolamine of SR and irreversible impairment of state III respiratory and dinitrophenol (DNP)-ATPase activities of Mt, and these necrotic changes advanced to subepicardial layer at about 60 min. 3. Ultrastructural irreversible findings appeared later at about 60 min following inflow of lanthanum ions in ischemia for 30 min. 4. Activation of cathepsin B inside of SR under ischemic acidic metabolism and abnormal inflow of Ca++ into ischemic cardiac myocytes are suspective of very important factors for the initiation of myocardial ischemic injury in early myocardial ischemia.
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Affiliation(s)
- T Katagiri
- Third Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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Geshi E, Konno N, Yanagishita T, Katagiri T. Impairment of mitochondrial respiratory activity in the early ischemic myocardium--with special reference to electron transport system. Jpn Circ J 1988; 52:535-42. [PMID: 2845164 DOI: 10.1253/jcj.52.535] [Citation(s) in RCA: 14] [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] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Impairment of mitochondrial respiration in early myocardial ischemia was studied with special reference to myocellular irreversible injury. The technique used was total ligation of the left anterior descending coronary artery, followed by reconstruction of coronary blood flow, in the dog. State 3 respiratory activity reduced significantly to 76% of that of the non-ischemic myocardium in subendocardial muscle (Endo) as early as 30 min after occlusion, and at 60 min to 84% in the subepicardium (Epi). The activity was not recovered by reperfusion. The activity of complex I of sonicated submitochondrial particles decreased at 30 min to 67% in Endo and at 60 min to 71% in Epi, and was not recovered by reperfusion. Complex II and IV activities were kept in the control level until 60 min of ischemia. DNP-stimulated ATPase activity reduced to 79% in Endo at 15 min and to 70% in Epi at 30 min, but recovered significantly by reperfusion until 30 min of ischemia. Mitochondrial respiratory activity was impaired irreversibly in ischemia for 30 min in Endo and this spread to Epi later. Degradation of complex I is considered to be one of the causes of myocardial irreversibility in early ischemia.
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Affiliation(s)
- E Geshi
- Third Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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Konno N, Yanagishita T, Geshi E, Katagiri T. Degradation of the cardiac sarcoplasmic reticulum in acute myocardial ischemia. Jpn Circ J 1987; 51:411-20. [PMID: 2956434 DOI: 10.1253/jcj.51.411] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The degradation of the sarcoplasmic reticulum (SR) in acute myocardial ischemia was studied with references to the regional irreversibility and to the mechanism of ischemic degradation by the measurements of Ca++-stimulated ATPase activity and composition of the major ATPase protein of the SR and activity of cathepsin B of the SR and lysosome (Ly) fractions. Ca++-stimulated ATPase activity decreased to 66% of that of the nonischemic portion at 20 min after coronary ligation in the subendocardium (Endo) and to 44% at 30 min in the subepicardium (Epi). Composition of the major ATPase protein decreased to 55% and 73% at 30 min in Endo and Epi, respectively. In both SR and Ly fractions cathepsin B exhibited the maximal activity at 6.0-6.5, and pH dependent. And incubation of the SR at pH 6.0 induced the degradation of the ATPase protein quite similarly to that in vivo ischemia. These results suggest that the degradation of the SR membrane of ischemic myocardial cells begins earlier in Endo 20 to 30 min after the cease of the coronary blood flow, and extends to Epi later. Cathepsin B is strongly conceivable to play an initial role of necrotic process of the ischemic myocardial cells by activation inside of the SR in ischemic acidic state.
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Abstract
Alterations in the phospholipid component of membranes were studied in acute myocardial ischemia with respect to sarcoplasmic reticulum (SR) and mitochondria (Mt) in the canine heart and compared with changes in the phospholipid composition of intact membrane treated with exogenous phospholipases (PLases) A2 and C, in order to examine the mechanism of ischemic degradation. As early as 30 min after coronary ligation, the total phospholipid content of SR and Mt decreased significantly, 16.0% and 5.6%, respectively. The patterns of SR and Mt phospholipids from the ischemic myocardia did not differ on the chromatograms from those of the non-ischemic myocardia, and no significant increases in lysophospholipids were found for up to 3 hrs. Among the components of phospholipids, phosphatidylcholine (PC) and phosphatidylethanolamine (PE) decreased mainly during ischemia, and depletion of PC exceeded that of PE in SR. PLase C hydrolysed phospholipids yielded no lysophospholipids, compared to the production of a large amount of lysophospholipids by PLase A2. It was concluded that degradation of membrane phospholipids occurs in the early stage of myocardial ischemia mainly in PC and PE, which are the major components of membrane phospholipids. This may be an expression of irreversible changes, and the activation of PLase C was considered to play an important role in their degradation.
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Akiyama K, Konno N, Yanagishita T, Tanno F, Katagiri T. Ultrastructural changes in the sarcoplasmic reticulum in acute myocardial ischemia. Jpn Circ J 1986; 50:829-38. [PMID: 2948034 DOI: 10.1253/jcj.50.829] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We investigated the morphologic changes in the sarcoplasmic reticulum (SR) in acute myocardial ischemia, induced by occlusion of the coronary artery in the canine heart, by freeze-fracture of SR in situ and in vitro, and they were compared to the alterations in Ca++-stimulated ATPase activity and protein composition of the isolated SR. Both SR in situ and the isolated SR exhibited typical intramembranous particles with diameters of 70 to 90 A in freeze-fracture replicas. The intramembranous particle density of the P face in SR in situ was 3,319 +/- 75 (mean +/- SE) per micrometer2 and that in the isolated SR was 2,667 +/- 60; particles were more numerous on the concave (P) face than on the convex (E) face. In ischemia for 30 to 60 min a significant decrease in the number of particles was found in SR in situ, and the corresponding change was noted in the isolated SR. Simultaneous decreases in Ca++-stimulated ATPase activity and the major ATPase protein of the SR were recognized. The close correlation of the changing pattern between the reduction in Ca++-ATPase and that in intramembranous particle density during ischemia supports the suggestion that a large part of the intramembranous particles represent ATPase protein itself. Decrease in the SR membrane particles strongly suggests the degradation of ATPase protein in the process of ischemic myocardial injury.
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Katagiri T, Konno N, Yanagishita T, Geshi E. [Structure and function of the myocardium from a biochemical aspect]. Kokyu To Junkan 1985; 33:497-506. [PMID: 3892614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Hashimoto H, Sagara H, Matsubara Y, Tomizawa I, Takizawa Y, Ito K, Konishi K, Matsunaga M, Yanagishita T, Kosugi M. [Comparison of clinical usefulness of enoxacin (ENX, AT-2266) and pipemidic acid (PPA) in the treatment of acute infectious diarrhea by a double-blind method. The Japan Research Committee of Enoxacin Research Group for Acute Infectious Diarrhea]. Kansenshogaku Zasshi 1984; 58:1114-34. [PMID: 6442322 DOI: 10.11150/kansenshogakuzasshi1970.58.1114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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36
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Saito M, Seo T, Matsubara Y, Tomizawa I, Takizawa Y, Ito K, Konishi K, Matsunaga M, Yanagishita T, Kosugi M. [Comparison of clinical efficacy of ofloxacin COFLX: DL-8280) and pipemidic acid (PPA) in acute infectious diarrhea by a double-blind method. The Japan Research Committee of Ofloxacin, Research Group for Acute Infectious Diarrhea]. Kansenshogaku Zasshi 1984; 58:965-81. [PMID: 6442323 DOI: 10.11150/kansenshogakuzasshi1970.58.965] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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37
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Akiyama K, Katagiri T, Konno N, Yanagishita T, Tanno F, Kanaya H, Sekita S, Yokoyama M, Takeyama Y, Niitani H. Ultrastructure of sarcoplasmic reticulum in the ischemic myocardium. J Mol Cell Cardiol 1983. [DOI: 10.1016/0022-2828(83)91038-6] [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: 11/16/2022]
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38
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Takeyama Y, Kanaya H, Tanno F, Konno N, Yanagishita T, Akiyama K, Sekita S, Yokoyama M, Minatoguchi H, Nakamura N. Electron microscopic studies on ATPase activities in the biopsied human myocardium in various heart diseases. J Mol Cell Cardiol 1983. [DOI: 10.1016/0022-2828(83)90916-1] [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: 10/26/2022]
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Miyazaki T, Hirose N, Kawamura J, Kageyama Y, Iikuni K, Yanagishita T. [A case of generalized Paget's disease of bone complicating high output heart failure]. Nihon Naika Gakkai Zasshi 1983; 72:47-54. [PMID: 6854116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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40
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Masuda G, Yajima T, Nakamura K, Yanagishita T, Hayashi H. Comparative bactericidal activities of beta-lactam antibiotics determined in agar and broth media. J Antibiot (Tokyo) 1979; 32:1168-73. [PMID: 118959 DOI: 10.7164/antibiotics.32.1168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Comparative bactericidal activities were determined utilizing a relatively large number of test strains, in both agar and broth media, with special reference to the time of exposure of the bacteria to certain beta-lactam antibiotics. It was apparent that the activities increase with time. The concentrations producing a 99.9% kill with cephalothin for Escherichia coli, Klebsiella sp., and carbenicillin for Pseudomonas aeruginosa were higher in broth than in agar. In contrast, those of benzylpenicillin for alpha-streptococcus (non-enterococcal) were higher in agar than in broth. If the bactericidal concentrations with 3-hour or 6-hour exposure to antibiotics were used as the criterion, these concentrations of carbenicillin for P. aeruginosa, and benzylpenicillin for alpha-streptococcus were, in particular, unusually high compared with the conventionally determined bacteriostatic concentrations (MICs).
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Masuda G, Yajima T, Nakamura K, Yanagishita T, Yamazaki E. [Effect of inhibitory (MIC) and subinhibitory concentrations of tobramycin on bacteriostatic and bactericidal activities of beta-lactam antibiotics (author's transl)]. Jpn J Antibiot 1979; 32:1189-95. [PMID: 117156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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42
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Iimura T, Shimitsu N, Yanagishita T, Wada H, Niwano K, Tanaka M, Nagase K, Ohkubo N, Kashiwagi Y, Shibata M. [Studies on the relationship of hemolytic Streptococcus isolated from scarlet fever patients and their families (author's transl)]. Kansenshogaku Zasshi 1979; 53:564-74. [PMID: 119014 DOI: 10.11150/kansenshogakuzasshi1970.53.564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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43
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Yanagishita T. [Prevention of hospital infection with special reference to hepatitis B]. Kango Tenbo 1977; 2:37-42. [PMID: 242724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Tomizawa I, Iimura T, Shimizu N, Yanagishita T, Tsuji M. [Double-blind tests of ampicillin and talampicillin in scarlet fever]. Kansenshogaku Zasshi 1975; 49:425-39. [PMID: 815455 DOI: 10.11150/kansenshogakuzasshi1970.49.425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Yanagishita T, Shimizu N, Ono T. [Clinical evaluation of clindamycin in the treatment of scarlet fever and hemolytic-streptococcal tonsillitis]. Kansenshogaku Zasshi 1971; 45:285-94. [PMID: 5000005 DOI: 10.11150/kansenshogakuzasshi1970.45.285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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46
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Yanagishita T. [Questions and answers in nursing for the 2nd year student. Theory of adult nursing]. Kango Kyoshitsu 1971; 15:70-3. [PMID: 5207250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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47
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Yanagishita T, Shimizu N, Ono T. [Clinical evaluation of josamycin for the treatment of scarlet fever and hemolytic-streptococcal tonsillitis]. Nihon Densenbyo Gakkai Zasshi 1969; 43:205-12. [PMID: 4983145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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48
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Yanagishita T, Okajima S. [Treatment of bacillary dysentery with Pantophenicol]. Nihon Densenbyo Gakkai Zasshi 1967; 41:189-93. [PMID: 4967012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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