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Takiguchi M, Akaike T, Shindo K, Sakuyama R, Koganemaru R, Funakoshi K. Chondroitin sulfate expression around motoneurons changes after complete spinal transection of neonatal rats. Neurosci Lett 2022; 766:136324. [PMID: 34740772 DOI: 10.1016/j.neulet.2021.136324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 01/01/2021] [Revised: 08/23/2021] [Accepted: 10/29/2021] [Indexed: 10/19/2022]
Abstract
Hind limb locomotor activity spontaneously recovers after complete spinal transection (CST) in neonatal rats, but the mechanisms underlying the recovery are poorly understood. The perineuronal net (PNN) surrounding the neuronal cell bodies comprises an extracellular matrix that regulates neuronal plasticity during development. Here, we examined the expression of chondroitin sulfate (CS), a major component of the PNN, on motoneurons after CST in neonatal rats, and compared it with that in juvenile rats, in which hindlimb locomotor activity does not recover spontaneously. The spinal cord was transected at the mid-thoracic level in neonatal (postnatal day 5 [P5] and P10) and juvenile (P15 and P20) rats. Two weeks after CST, the percentage of motoneurons surrounded by chondroitin sulfate C (CS-C) - positive structures was significantly lower in rats with CST at P10 than in intact rats, and tended to be higher in rats with CST at P15 than in intact rats. The percentage of motoneurons with CS-A - positive structures was significantly lower in rats with CST at P15 than in intact rats. These findings suggest that CS-A and CS-C are differentially expressed in the PNNs in rats with CST. The decrease in CS-C - positive PNNs might facilitate the formation of new synaptic contacts to motoneurons, resulting in the recovery of the hindlimb locomotor activity in rats with CST during the neonatal period.
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Affiliation(s)
- Masahito Takiguchi
- Department of Neuroanatomy, Yokohama City University School of Medicine, Kanazawa-ku, Yokohama, Japan
| | - Takashi Akaike
- Department of Neuroanatomy, Yokohama City University School of Medicine, Kanazawa-ku, Yokohama, Japan
| | - Kaoru Shindo
- Department of Neuroanatomy, Yokohama City University School of Medicine, Kanazawa-ku, Yokohama, Japan
| | - Risa Sakuyama
- Department of Neuroanatomy, Yokohama City University School of Medicine, Kanazawa-ku, Yokohama, Japan
| | - Ran Koganemaru
- Department of Neuroanatomy, Yokohama City University School of Medicine, Kanazawa-ku, Yokohama, Japan
| | - Kengo Funakoshi
- Department of Neuroanatomy, Yokohama City University School of Medicine, Kanazawa-ku, Yokohama, Japan.
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Yasothan Y, Shindo K, Schmitt N, Vennat E. Morphological characterization of defects in all-ceramic crown adhesive layer. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1816302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Y. Yasothan
- CentraleSupélec, CNRS, Laboratoire MSSMat, Université Paris-Saclay, Paris, France
- ENS Paris-Saclay, CNRS, LMT, Université Paris-Saclay, Paris, France
| | - K. Shindo
- Faculté de Chirurgie Dentaire, Université Paris Descartes, Paris, France
| | - N. Schmitt
- ENS Paris-Saclay, CNRS, LMT, Université Paris-Saclay, Paris, France
- INSPE, Université Paris-Est Créteil, Paris, France
| | - E. Vennat
- CentraleSupélec, CNRS, Laboratoire MSSMat, Université Paris-Saclay, Paris, France
- Faculté de Chirurgie Dentaire, Université Paris Descartes, Paris, France
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Yoshinaga J, Morita M, Yukawa M, Shiraishi K, Kawamura H, Arae H, Baker S, Barnes RM, Dang HS, De Regge P, Funato Y, Futatsugawa K, Hirai S, Kato T, Kawamoto K, Matsubara M, Matsue H, Miller-Ihli NJ, Muramatsu Y, Narukawa T, Okada Y, Reitznerová E, Sakamoto H, Sera K, Shindo K, Suzuki S, Takata J, Takeuchi T, Tamari Y, Tanizaki Y, Veillon C, Yasui A, Yonezawa C. Certified Reference Material for Analytical Quality Assurance of Minor and Trace Elements in Food and Related Matrixes Based on a Typical Japanese Diet: Interlaboratory Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/84.4.1202] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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
A Certified Reference Material (CRM) was prepared at the National Institute for Environmental Studies (NIES), Japan, in collaboration with the National Institute of Radiological Sciences (NIRS), Japan, for the analytical quality assurance of minor and trace elements in food and related matrixes. The starting material for the CRM was all food served in 29 households in Japan over two 3-day periods in 1997–1998, and thus the CRM represented a typical Japanese diet. All foods (meals, snacks, and beverages) were homogenized, freeze-dried, pulverized, blended, dispensed into 1100 bottles, and sterilized. The within- and between-bottle homogeneity of the prepared CRM was satisfactory for most of the elements. The concentrations of 14 elements (Na, Mg, K, Ca, Mn, Cu, Zn, As, Se, Sr, Cd, Sn, Ba, and U) were certified based on a collaborative analysis involving NIES, NIRS, and 20 other laboratories. Reference values were given for the concentrations of 12 additional elements (P, Cl, Fe, Co, Ni, Br, Rb, Mo, I, Cs, Pb, and Th). The elements certified and those given reference values include minerals, essential trace elements, contaminant elements, and long-lived radionuclides. Thus, this CRM is of practical value in the quality assurance of element analysis of foods and diets in nutritional, environmental, and radiological research.
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Affiliation(s)
- Jun Yoshinaga
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-0053, Japan; Present address: Institute of Environmental Studies, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Masatoshi Morita
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-0053, Japan; Present address: Institute of Environmental Studies, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Masae Yukawa
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Kunio Shiraishi
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Hisao Kawamura
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
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Affiliation(s)
- H Matsuura
- Department of General Internal Medicine, Kurashiki Central Hospital, 1-1-1, Miwa, Kurashiki-city, Okayama, Japan
| | - K Shindo
- Department of Neurology, Kurashiki Central Hospital, 1-1-1, Miwa, Kurashiki-city, Okayama, Japan
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Shindo K, Sato T, Satake A, Kurita N, Tsuchiya M, Ichinose Y, Hata T, Koh K, Yamashiro N, Kobayashi F, Nagasaka T, Takiyama Y. Skin vasomotor regulation in patients with multiple system atrophy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2588] [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]
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Nagasaka T, Hata T, Ichinose Y, Kho K, Yamashiro N, Tsuchiya M, Takaki R, Shindo K, Takiyama Y. Morphological features of mitochondria in anti-mitochondrial antibodies-positive myositis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2311] [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: 10/18/2022]
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Kasashima-Shindo Y, Fujiwara T, Ushiba J, Kawakami M, Ono T, Nishimoto A, Shindo K, Tsuji T, Liu M. P247: Brain-machine interface training combined with transcranial direct current stimulation in patients with chronic severe hemiparesis: proof of concept study. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50372-0] [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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Shindo K, Ono T, Kasashima-Shindo Y, Ebata H, Liu M. P281: Modulation of cortical activity after anodal transcranial direct current stimulation during motor task: an fMRI study. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50399-9] [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: 10/25/2022]
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Kokunai Y, Nakata T, Furuta M, Sakata S, Kimura H, Aiba T, Yoshinaga M, Osaki Y, Nakamori M, Itoh H, Sato T, Kubota T, Kadota K, Shindo K, Mochizuki H, Shimizu W, Horie M, Okamura Y, Ohno K, Takahashi MP. A Kir3.4 mutation causes Andersen-Tawil syndrome by an inhibitory effect on Kir2.1. Neurology 2014; 82:1058-64. [DOI: 10.1212/wnl.0000000000000239] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Fujii D, Mori H, Shindo K. Clinical features of aseptic meningitis. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2392] [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: 11/26/2022]
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11
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Shindo H, Maekawa S, Komase K, Miura M, Kadokura M, Sueki R, Komatsu N, Shindo K, Amemiya F, Nakayama Y, Inoue T, Sakamoto M, Yamashita A, Moriishi K, Enomoto N. IL-28B (IFN-λ3) and IFN-α synergistically inhibit HCV replication. J Viral Hepat 2013; 20:281-9. [PMID: 23490373 DOI: 10.1111/j.1365-2893.2012.01649.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [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] [Received: 03/15/2012] [Accepted: 06/07/2012] [Indexed: 01/09/2023]
Abstract
Genetic variation in the IL-28B (interleukin-28B; interferon lambda 3) region has been associated with sustained virological response (SVR) rates in patients with chronic hepatitis C treated with peginterferon-α and ribavirin. However, the mechanisms by which polymorphisms in the IL-28B gene region affect host antiviral responses are not well understood. Using the HCV 1b and 2a replicon system, we compared the effects of IFN-λs and IFN-α on HCV RNA replication. The anti-HCV effect of IFN-λ3 and IFN-α in combination was also assessed. Changes in gene expression induced by IFN-λ3 and IFN-α were compared using cDNA microarray analysis. IFN-λs at concentrations of 1 ng/mL or more exhibited concentration- and time-dependent HCV inhibition. In combination, IFN-λ3 and IFN-α had a synergistic anti-HCV effect; however, no synergistic enhancement was observed for interferon-stimulated response element (ISRE) activity or upregulation of interferon-stimulated genes (ISGs). With respect to the time course of ISG upregulation, the peak of IFN-λ3-induced gene expression occurred later and lasted longer than that induced by IFN-α. In addition, although the genes upregulated by IFN-α and IFN-λ3 were similar to microarray analysis, interferon-stimulated gene expression appeared early and was prolonged by combined administration of these two IFNs. In conclusion, IFN-α and IFN-λ3 in combination showed synergistic anti-HCV activity in vitro. Differences in time-dependent upregulation of these genes might contribute to the synergistic antiviral activity.
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Affiliation(s)
- H Shindo
- First Department of Internal Medicine, University of Yamanashi, Yamanashi, Japan
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Shindo K, Kawashima K, Ushiba J, Ota N, Ito M, Ota T, Kimura A, Liu M. Effects of neurofeedback training with an electroencephalogram-based Brain–Computer Interface for hand paralysis in patients with chronic stroke: A preliminary case series study. J Rehabil Med 2011; 43:951-7. [DOI: 10.2340/16501977-0859] [Citation(s) in RCA: 173] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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13
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Ito M, Shindo K, Hotta F, Mineshita K, Mizokoshi K, Liu M. P23-7 Botulinum toxin treatment of a patient with trismus due to jaw closing spasm after brainstem infarction. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60982-0] [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: 10/18/2022]
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Ohta E, Nagasaka T, Shindo K, Toma S, Nagasaka K, Ohta K, Shiozawa Z. Neuroferritinopathy in a Japanese family with a duplication in the ferritin light chain gene. Neurology 2008; 70:1493-4. [PMID: 18413574 DOI: 10.1212/01.wnl.0000310428.74624.95] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- E Ohta
- Department of Neurology, Interdisciplinary Graduate School of Medicine and Engineering University of Yamanashi, 1110 Shimokatou Chuo city, Yamanashi, 409-3898, Japan.
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Izumi SI, Kondo T, Shindo K. Transcranial magnetic stimulation synchronized with maximal movement effort of the hemiplegic hand after stroke: A double-blinded controlled pilot study. J Rehabil Med 2008; 40:49-54. [DOI: 10.2340/16501977-0133] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Shindo K, Toma S, Toma S, Ono H, Nagasaka K, Tando Y, Iida H, Ichinose Y, Togashi S, Ohta E, Nagasaka T, Shiozawa Z. P35.7 Skin vasomotor and sudomotor neural function in patients with amyotrophic lateral sclerosis. Clin Neurophysiol 2006. [DOI: 10.1016/j.clinph.2006.06.592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Narita M, Kuzumaki N, Narita M, Kaneko C, Tamai E, Khotib J, Miyatake M, Shindo K, Nagumo Y, Tanaka S, Suzuki T. Age-related emotionality is associated with cortical delta-opioid receptor dysfunction-dependent astrogliosis. Neuroscience 2006; 137:1359-67. [PMID: 16386853 DOI: 10.1016/j.neuroscience.2005.10.067] [Citation(s) in RCA: 17] [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] [Received: 08/10/2005] [Revised: 10/16/2005] [Accepted: 10/18/2005] [Indexed: 11/15/2022]
Abstract
Multiple changes occur in the aging brain, leading to age-related emotional disorders. A growing body of recent evidence suggests that the cortical delta-opioid receptor system plays a critical role in anxiety- and depressive-like behaviors in the rodent. In this study, we show that aging mice promoted anxiety-like behaviors as characterized by both the light-dark and elevated plus-maze tests, and they exhibit an increase in astrocytes in the cingulate cortex due to the dysfunction of cortical delta-opioid receptor systems. As well as aging mice, mice with a dysfunction of the delta-opioid receptor system induced by chronic treatment with the selective delta-opioid receptor antagonist naltrindole, revealed astrogliosis in the cingulate cortex, which was associated with anxiety. We also found that the microinjection of cultured astrocytes into the cingulate cortex of young mice enhanced the expression of anxiety-like behavior. Our results indicate that the aging process promotes astrogliosis in the cingulate cortex through the dysfunction of cortical delta-opioid receptors. This phenomenon may lead to emotional disorders including aggravated anxiety during normal aging.
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Affiliation(s)
- M Narita
- Department of Toxicology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
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Sawada H, Shindo K, Ueno K, Hamazaki K. Reactions of fluoroalkanoyl peroxides with single-walled carbon nanotubes: application to sidewall modification of single-walled carbon nanotubes with the introduction of fluoroalkyl groups. POLYM ADVAN TECHNOL 2006. [DOI: 10.1002/pat.669] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Watanabe S, Kimura Y, Shindo K, Fukui T. Effect of Human Placenta Extract on Potassium Oxonate-Induced Elevation of Blood Uric Acid Concentration. ACTA ACUST UNITED AC 2006. [DOI: 10.1248/jhs.52.738] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Satoshi Watanabe
- Department of Health Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University
| | - Yumi Kimura
- Department of Health Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University
| | - Kaoru Shindo
- Department of Health Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University
| | - Tetsuya Fukui
- Department of Health Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University
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Sawada H, Shindo K, Iidzuka JI, Ueno K, Hamazaki K. Solubilization and applications of single-walled carbon nanotubes into aqueous and organic media by the use of nanometer size-controlled fluoroalkyl end-capped oligomeric aggregates. Eur Polym J 2005. [DOI: 10.1016/j.eurpolymj.2005.04.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [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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Sawada H, Shindo K, Iidzuka JI, Kawase T, Oharu K, Nakagawa H. DISSOLUTION OF CARBON NANOTUBES IN WATER AND ORGANIC MEDIA WITH A VARIETY OF FLUOROALKYL END-CAPPED OLIGOMERS. INT J POLYM MATER PO 2005. [DOI: 10.1080/00914030390250040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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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Nishikido M, Noguchi M, Koga S, Kanetake H, Matsuya F, Hayashi M, Hori T, Shindo K. Kidney transplantation from non–heart-beating donors: Analysis of organ procurement and outcome. Transplant Proc 2004; 36:1888-90. [PMID: 15518686 DOI: 10.1016/j.transproceed.2004.06.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Most donors in Japan have been non-heart-beating donors (NHBD), so-called "marginal donors." In Western countries kidney transplants from NHBD have also been increasing. We analyzed 120 kidneys harvested from NHBD with regard to organ procurement, renal function, graft survival, and the donor factors that affected graft survival. METHODS Donors were moved into the operating room after cardiac arrest. A double-balloon catheter was inserted into the abdominal aorta via laparotomy. In situ cooling by Euro-Collins solution was started at 500 mL/min. We did not performed cannulation into the femoral artery or vein prior to cardiac arrest. RESULTS Warm ischemia time (WIT) was 18.6 minutes. Among 108 kidneys (90%) used for transplantation, 102 kidneys functioned. There were no cases of bilateral nonfunctioning kidneys. The delayed graft function (DGF) rate was 86%; however, the death-censored graft survival was 80.0% at 5 years and 62.9% at 10 years. Kidneys implanted after more than 24 hours of total ischemia time required a significantly longer period of hemodialysis. Donor risk factors that affected graft survival included WIT >/= 20 minutes, donor age >/= 50 years, and serum creatinine level at admission > 1.0 mg/dL. CONCLUSIONS Organ procurement without cannulation prior to cardiac arrest entailed a long WIT and a high DGF rate. However, the graft survival was good. It has been necessary to use grafts from NHBD despite the inherent risk factors. It is important to reduce kidney damage both at the organ procurement and during the posttransplant management.
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Affiliation(s)
- M Nishikido
- Department of Urology, Nagasaki University School of Medicine, Nagasaki, Japan.
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Teraoka S, Nomoto K, Kikuchi K, Hirano T, Satomi S, Hasegawa A, Uchida K, Akiyama T, Tanaka S, Babazona T, Shindo K, Nakamura N. Outcomes of kidney transplants from non-heart-beating deceased donors as reported to the Japan Organ Transplant Network from April 1995-December 2003: a multi-center report. Clin Transpl 2004:91-102. [PMID: 16704141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Between April 1995-December 2003, 1,324 deceased donor kidney transplantations were performed in 139 transplant institutes in Japan. Of these, 45 transplants were from heart-beating and 1,279 transplants were from non-heart-beating deceased donors (NHBDD). Clinical outcomes for the 1,279 recipients of NHBDD kidney transplants were investigated. The overall 5-year patient and graft survival rates were 90% and 72%, respectively. A total of 112 NHBDD kidney grafts never functioned after transplantation and the recipients had to remain on dialysis. The causes of nonfunction were rejection, primary nonfunction, death, thrombosis and others in the order of the incidence. The major causes of graft loss were nonfunction, death, chronic rejection and acute rejection in that order. Major causes of recipient deaths were pneumonia, sepsis and CVA within 12 months, and heart diseases, sepsis, malignancy and pneumonia more than 12 months after transplantation. Kidneys from female donors, donors aged 15 or less or over age 60, donors with extrinsic causes of death other than head trauma, recipients over age 60 and those with diabetic nephropathy as their original disease were found to be at risk for poor graft survival. The lowest and last donor serum creatinine level did not influence the incidence of nonfunction or graft survival. However, graft survival was significantly poorer among recipients of older "expanded" donor kidneys than for recipients of younger grafts. The warm and total ischemia times should be kept shorter than 30 minutes (better 15 minutes), and 12 hours, respectively to minimize the incidence of nonfunction and early graft loss. It is especially important in cases with WIT over 30 minutes that the total ischemia should be kept within 12 hours. Cannulation before cardiac standstill was important to reduce the incidence of nonfunction and achieve high graft survival rates with NHBDD kidneys. The discontinuance of ventilator support also reduced the incidence of graft nonfunction. The combination of CsA or Tacrolimus and MMF as both the induction and maintenance regimen significantly improved graft survival. The use of either anti-T cell antibodies or basiliximab was also associated with significantly better graft survival for NHBDD kidneys. The combination of basiliximab, CsA and MMF resulted in a graft survival rate of 98% at one and 2 years.
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Affiliation(s)
- S Teraoka
- Statistical Analysis Committee, Japan Organ Transplant Network, Japan
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Shindo K, Watanabe H, Tanaka H, Ohashi K, Nagasaka T, Tsunoda S, Shiozawa Z. Age and duration related changes in muscle sympathetic nerve activity in Parkinson's disease. J Neurol Neurosurg Psychiatry 2003; 74:1407-11. [PMID: 14570835 PMCID: PMC1757391 DOI: 10.1136/jnnp.74.10.1407] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To clarify the characteristics of sympathetic vasomotor function in Parkinson's disease by sympathetic neurographic analysis. METHODS Muscle sympathetic nerve activity (MSNA) was recorded using a microneurographic technique at rest and during head up tilt in 18 patients with idiopathic Parkinson's disease and 21 healthy controls. RESULTS Heart rate and blood pressure at rest did not differ between index and control subjects. The increase in these variables and MSNA in response to tilting was slightly blunted in the Parkinson's group. Resting MSNA showed a negative correlation with age in patients with Parkinson's disease (p<0.05) and a positive correlation with age in controls (p<0.01). There was a negative correlation between duration of disease or disability levels and MSNA (p<0.01). CONCLUSIONS Sympathetic vasomotor function may be related to age and disease duration in Parkinson's disease.
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Affiliation(s)
- K Shindo
- Department of Neurology, Yamanashi Medical University, Yamanashi, Japan.
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Shindo K, Funai S, Kuroda K, Wakano T, Nishimura K. Clinical study on the antiseptic effect of povidone-iodine solution for the surgical field of digestive tract operations. Dermatology 2002; 204 Suppl 1:47-51. [PMID: 12011521 DOI: 10.1159/000057725] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Our previous study showed 10% povidone-iodine solution (Isodine) to be safe and effective for skin antisepsis in healthy young adults. The present study was carried out in 45 adult and old-age patients undergoing surgery (average age 62 years). 10% povidone-iodine solution was effective for skin antisepsis; however, after completion of the intra-abdominal procedures, contaminations were found due to the type II and IV operations with unprotected incision sites and wound walls. Diabetes was found to be one of the most important factors in surgical site infection. In conclusion, the antiseptic efficacy immediately after application of 10% povidone-iodine solution was evidenced in surgical patients with class II wounds. The solution was also effective for the prevention of postoperative skin wound infection.
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Affiliation(s)
- K Shindo
- Department of Surgery, Kinki University School of Medicine, Sakai Hospital, Osaka, Japan.
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28
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Abstract
In a 19-year-old patient with status epilepticus arising in the right parietal neocortex, unenhanced ictal MRI showed abnormalities mainly in the right cerebral cortex, contralateral cerebellum, and ipsilateral thalamus. The thalamus is considered a key site of functional abnormality in this patient.
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Affiliation(s)
- T Nagasaka
- Department of Neurology, Yamanashi Medical University, Japan.
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29
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Yamada M, Kato K, Shindo K, Nomizu M, Haruki M, Sakairi N, Ohkawa K, Yamamoto H, Nishi N. UV-irradiation-induced DNA immobilization and functional utilization of DNA on nonwoven cellulose fabric. Biomaterials 2001; 22:3121-6. [PMID: 11603583 DOI: 10.1016/s0142-9612(01)00061-8] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Immobilization of double-stranded DNA onto nonwoven cellulose fabric by UV irradiation and utilization of DNA-immobilized cloth were examined. The immobilized DNA was found to be stable in water, with the maximum amount of fabric-immobilized DNA being approximately 20 mg/g of nonwoven fabric. The DNA-immobilized cloth could effectively accumulate endocrine disruptors and harmful DNA intercalating pollutants, such as dibenzo-p-dioxin, dibenzofuran, biphenyl, benzo[a]pyrene and ethidium bromide. Additionally, DNA-immobilized cloth was found to bind metal ions, such as Ag+, Cu2+, and Zn2+. The maximum amounts of bound Ag+, Cu2+, and Zn2+ onto DNA-immobilized cloth (1 g) were approximately 5, 2, and 1 mg, respectively. DNA-immobilized cloth containing Ag+ showed antibacterial activity against Escherichia coli and Staphylococcus aureus. DNA-immobilized cloth without metal ion and with Cu2+ or Zn2+ did not show antibacterial activity. These results suggest that immobilized DNA imparts useful functionality to cloth. DNA-immobilized cloth prepared by UV irradiation has potential to serve as a useful biomaterial for medical, engineering, and environmental application.
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Affiliation(s)
- M Yamada
- Laboratory of Bio-Material Chemistry, Division of Bioscience, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Japan
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30
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Murakami Y, Okuda T, Shindo K. Roridin L, M and verrucarin M, new macrocyclic trichothecene group antitumor antibiotics, from Myrothecium verrucaria. J Antibiot (Tokyo) 2001; 54:980-3. [PMID: 11827043 DOI: 10.7164/antibiotics.54.980] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
MESH Headings
- Animals
- Antibiotics, Antineoplastic/chemistry
- Antibiotics, Antineoplastic/isolation & purification
- Antibiotics, Antineoplastic/pharmacology
- Ascomycota/chemistry
- Ascomycota/metabolism
- Chromatography, High Pressure Liquid
- Fermentation
- Inhibitory Concentration 50
- Mice
- Nuclear Magnetic Resonance, Biomolecular
- Spectrometry, Mass, Fast Atom Bombardment
- Spectrophotometry, Infrared
- Spectrophotometry, Ultraviolet
- Trichothecenes/chemistry
- Trichothecenes/isolation & purification
- Trichothecenes/pharmacology
- Tumor Cells, Cultured
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31
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Shindo K, Ohnishi Y, Chun HK, Takahashi H, Hayashi M, Saito A, Iguchi K, Furukawa K, Harayama S, Horinouchi S, Misawa N. Oxygenation reactions of various tricyclic fused aromatic compounds using Escherichia coli and Streptomyces lividans transformants carrying several arene dioxygenase genes. Biosci Biotechnol Biochem 2001; 65:2472-81. [PMID: 11791721 DOI: 10.1271/bbb.65.2472] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Bioconversion (biotransformation) experiments on arenes (aromatic compounds), including various tricyclic fused aromatic compounds such as fluorene, dibenzofuran, dibenzothiophene, carbazole, acridene, and phenanthridine, were done using the cells of Escherichia coli transformants expressing several arene dioxygenase genes. E. coli carrying the phenanthrene dioxygenase (phdABCD) genes derived from the marine bacterium Nocardioides sp. strain KP7 converted all of these tricyclic aromatic compounds, while E. coli carrying the Pseudomonas putida F1 toluene dioxygenase (todC1C2BA) genes or the P. pseudoalcaligenes KF707 biphenyl dioxygenase (bphA1A2A3A4) genes was not able to convert these substrates. Surprisingly, E. coli carrying hybrid dioxygenase (todC1::bphA2A3A4) genes with a subunit substitution between the toluene and biphenyl dioxygenases was able to convert fluorene, dibenzofuran, and dibenzothiophene. The cells of a Streptomyces lividans transformant carrying the phenanthrene dioxygenase genes were also evaluated for bioconversion of various tricyclic fused aromatic compounds. The ability of this actinomycete in their conversion was similar to that of E. coli carrying the corresponding genes. Products converted from the aromatic compounds with these recombinant bacterial cells were purified by column chromatography on silica gel, and identified by their MS and 1H and 13C NMR analyses. Several products, e.g., 4-hydroxyfluorene converted from fluorene, and cis-1,2-dihydroxy-1,2-dihydrophenanthridine, cis-9,10-dihydroxy-9,10-dihydrophenanthridine, and 10-hydroxyphenanthridine, which were converted from phenanthridine, were novel compounds.
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Affiliation(s)
- K Shindo
- Pharmaceutical Research Laboratories, Kirin Brewery Co., Ltd., Takasaki, Japan
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32
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Nishikido M, Kiyohara T, Koga S, Shindo K, Matsuya F, Saito Y, Kanetake H. OK432-induced killer cell activity: potential method for monitoring immunological complications after renal transplantation. Nephrol Dial Transplant 2001; 16:2067-71. [PMID: 11572898 DOI: 10.1093/ndt/16.10.2067] [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: 11/12/2022] Open
Abstract
BACKGROUND Various clinical and biochemical parameters are currently in use for monitoring allograft rejection. However, the mechanism of allograft rejection is complex and it is frequently difficult to obtain a prompt and accurate diagnosis. We examined the usefulness of OK432-induced killer cell activity as an immunological monitoring system for acute renal rejection after renal transplantation. METHODS Twenty-four renal transplant recipients, seven patients on haemodialysis, and 10 normal volunteers were enrolled in our study. The killer cell activity of peripheral blood mononuclear cells was induced by culturing these cells with the immunopotentiator, OK432, a heat and penicillin-treated lyophilized powder of the Su-strain of Streptococcus pyogenes. RESULTS The OK432-induced killer cell activity of renal transplant recipients without acute rejection (stable recipients) was significantly lower than in normal volunteers. In four renal transplant recipients with acute rejection, the killer cell activity was significantly higher than in stable recipients. In three recipients suffering from opportunistic infections, killer cell activity was significantly suppressed compared with stable recipients. CONCLUSIONS Our new test utilizing OK432-induced killer cell activity is potentially useful for monitoring the immunological state and complications after renal transplantation.
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Affiliation(s)
- M Nishikido
- Department of Urology, Nagasaki University School of Medicine, Nagasaki University Hospital, Nagasaki City, Japan
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33
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Watanabe H, Shindo K, Nakamura Y, Nagamatsu M, Shiozawa Z, Kusunoki S. [A case of Guillain-Barré syndrome after Campylobacter jejuni enterocolitis: anti-ganglioside antibody levels with or without Guillain-Barré syndrome]. Rinsho Shinkeigaku 2001; 41:625-7. [PMID: 11968750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
A 38-year old man developed enterocolitis one day after he had ingested raw chicken. Nine days later, his grip strength weakened. Eleven days later, he was admitted to our hospital with weakness of four limbs, dysphagia and dysarthria. Serum anti-Campylobacter jejuni antibody and anti-ganglioside antibodies (GM1, GD1a, GD1b, GalNAc-GD1a) were positive, and motor action potentials were not evoked at all extremities. He was diagnosed as having Guillain-Barré syndrome. After receiving immune absorption therapy and plasma exchange therapy, the patient improved. Another person who had also consumed the same raw chicken developed colitis only. Five weeks later, the anti-GalNAc-GD1a-IgG antibody titers (O.D. 490 nm) of the patient and the other man who developed colitis were 0.324 and 0.118, respectively. It was suggested that the pathogenesis of Guillain-Barré syndrome after Campylobacter jejuni enterocolitis may be related to the type and titer of anti-ganglioside antibodies and also to the sensitivity of the individual.
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Affiliation(s)
- H Watanabe
- Department of Neurology, Yamanashi Medical University
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34
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Mizugaki M, Nakagawa N, Nakamura H, Hishinuma T, Tomioka Y, Ishiwata S, Ido T, Iwata R, Funaki Y, Itoh M, Higuchi M, Okamura N, Fujiwara T, Sato M, Shindo K, Yoshida S. Influence of anesthesia on brain distribution of [(11)C]methamphetamine in monkeys in positron emission tomography (PET) study. Brain Res 2001; 911:173-5. [PMID: 11511387 DOI: 10.1016/s0006-8993(01)02669-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We investigated the influence of anesthesia on the brain distribution of [11C]methamphetamine (MAP) obtained by the positron emission tomography (PET) using the normal rhesus monkeys. We clarified that the brain uptake of [11C]MAP under halothane anesthesia was faster and higher than that under pentobarbital. The difference of the effect of anesthesia is an important problem in pharmacokinetic study in PET with experimental animals.
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Affiliation(s)
- M Mizugaki
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan.
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35
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Chun HK, Ohnishi Y, Misawa N, Shindo K, Hayashi M, Harayama S, Horinouchi S. Biotransformation of phenanthrene and 1-methoxynaphthalene with Streptomyces lividans cells expressing a marine bacterial phenanthrene dioxygenase gene cluster. Biosci Biotechnol Biochem 2001; 65:1774-81. [PMID: 11577717 DOI: 10.1271/bbb.65.1774] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The phdABCD gene cluster in a marine bacterium Nocardioides sp. strain KP7 codes for the multicomponent enzyme phenanthrene dioxygenase. phdA encoding an iron-sulfur protein large subunit alpha, phdB encoding its small subunit beta, phdC encoding ferredoxin, and phdD encoding ferredoxin reductase, were replaced in such a way that the termination codons of the preceding open reading frames were overlapped with the initiation codons of the following genes. This manipulated phdABCD gene cluster was positioned downstream of the thiostrepton-inducible promoter PtipA in a high-copy-number vector pIJ6021, and introduced into the gram-positive, soil-inhabiting, filamentous bacterium Streptomyces lividans. The recombinant S. lividans cells converted phenanthrene into a cis-diol form, which was determined to be cis-3,4-dihydroxy-3,4-dihydrophenanthrene by its UV spectral data as well as HPLC property, using the authentic sample for comparison. This biotransformation proceeded very efficiently; 200 microM and 2 mm of phenanthrene were almost completely converted to its cis-diol form in 6 h and 32 h, respectively. In addition, the S. lividans cells carrying the phdABCD gene cluster were found to transform 1-methoxynaphthalene to two products, which were identified to be 8-methoxy-2-naphthol in addition to 8-methoxy-1,2-dihydro-1,2-naphthalenediol by their EI-MS, 1H- and 13C-NMR spectral data.
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Affiliation(s)
- H K Chun
- Department of Biotechnology, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Japan
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36
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Tsuda S, Nishikido M, Koga S, Kanetake H, Harada T, Taguchi T, Matsuya F, Shindo K. [Long-term experience with renal transplantation in systemic amyloidosis: a case report]. Hinyokika Kiyo 2001; 47:415-9. [PMID: 11496398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Renal transplantation was performed on a 39-year old woman with secondary amyloidosis due to rheumatoid arthritis. She remains alive and renal function has been maintained satistfactorily with the exception of proteinuria ten years after transplantation. Recent renal biopsy showed no amyloid recurrence, but the presence of chronic rejection reaction and mild cyclosporin arteriolopathy. Symptoms related to systemic amyloidosis and rheumatoid arthritis improved after transplantation. Renal transplantation is the recommended therapy for the type AA systemic amyloidosis. This is the second report of long-term experience with renal transplantation in systemic amyloidosis in Japan.
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Affiliation(s)
- S Tsuda
- Department of Urology, Nagasaki University School of Medicine
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37
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Ozawa H, Azuma E, Shindo K, Higashigawa M, Mukouhara R, Komada Y. Transient renal tubular acidosis in a neonate following transplacental acetazolamide. Eur J Pediatr 2001; 160:321-2. [PMID: 11388607 DOI: 10.1007/pl00008441] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Renal tubular acidosis (RTA) was observed in a preterm boy shortly after birth. His mother had glaucoma and had been treated during pregnancy with oral acetazolamide, a carbonic anhydrase inhibitor. When RTA developed, acetazolamide was detected in his serum demonstrating transplacental acetazolamide passage.
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38
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Shindo K, Takahashi H, Shinozaki K, Kami K, Anzai K, Lee S, Aoyagi H, Kirino Y, Shimada I. Solution structure of micelle-bound H5 peptide (427-452): a primary structure corresponding to the pore forming region of the voltage dependent potassium channel. Biochim Biophys Acta 2001; 1545:153-9. [PMID: 11342041 DOI: 10.1016/s0167-4838(00)00273-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A 26-mer peptide with the sequence of the pore forming region (residues 427-452) of the Shaker K(+) channel (H5 region) was chemically synthesized. Analyses by CD and two-dimensional 1H NMR spectroscopy were used to investigate the structure of the peptide bound to SDS micelles in solution, which are commonly used in biophysical studies. The tertiary structure of the peptide as a monomer was composed of an alpha-helix (431-438), a turn (439-442), and random coils (427-430, 443-452), and was very similar to that of the pore forming region of the native K(+) channel from Streptomyces lividans determined by X-ray analysis. This result suggests that even an isolated peptide forms a native-like conformation for residues from 431 to 442, depending on its intrinsic amino acid sequence and the surrounding environment.
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Affiliation(s)
- K Shindo
- Graduate School of Pharmaceutical Sciences, University of Tokyo, Japan
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39
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Totsuka E, Itoh S, Shindo K, Suzuki K, Matsuura K, Nozaki T, Takiguchi M, Narumi S, Hakamada K, Endoh M, Sasaki M. Usefulness of redox tolerance test in evaluating fatty liver. Hepatogastroenterology 2001; 48:184-7. [PMID: 11268961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
BACKGROUND/AIMS In living-related liver transplantation, fatty liver should be exactly detected in the healthy donor with noninvasive measurement before the surgery. The study aimed to investigate the usefulness of redox tolerance test in diagnosing fatty liver. METHODOLOGY The subjects were 32 patients who underwent an abdominal surgery. They did not show any abnormal values in biochemical evaluations, nor had they diabetes. Under informed consent, liver specimens were obtained intraoperatively, and the subjects were divided into three groups according to the degree of hepatic fatty deposit: group A has fatty deposits at less than 10% of hepatocytes (n = 12), group B showed the deposits at 10-30% (n = 10), group C has the deposits of more than 30% (n = 10). Before the surgery, redox tolerance test was performed as follows; arterial blood samples were obtained successively at 75 g oral glucose load over a 120-min period, and the arterial ketone body ratio and blood glucose level were determined. The ratio of increased arterial ketone body ratio (AKBR) to increased blood glucose (BG) level (100 x delta AKBR/delta BG) was calculated as redox tolerance index. RESULTS After fasting state, arterial ketone body ratio and blood glucose level did not differ among the three groups. However, the values of redox tolerance index in groups B (0.73 +/- 0.08) and C (0.46 +/- 0.04) were significantly lower than those in group A (1.85 +/- 0.31). CONCLUSIONS The redox tolerance test was exceedingly sensitive indicator for objectively diagnosing the fatty liver.
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Affiliation(s)
- E Totsuka
- Second Department of Surgery, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan.
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40
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Matsushima Y, Nakayama T, Fujita M, Bhandari R, Eguchi T, Shindo K, Kakinuma K. Isolation and Structure Elucidation of Vicenistatin M, and Importance of the Vicenisamine Aminosugar for Exerting Cytotoxicity of Vicenistatin. J Antibiot (Tokyo) 2001; 54:211-9. [PMID: 11372778 DOI: 10.7164/antibiotics.54.211] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new analogue of vicenistatin was isolated from the producing strain Streptomyces sp. HC-34. A characteristic of the elucidated structure involved the existence of a neutral sugar mycarose instead of an aminosugar vicenisamine of vicenistatin. The absolute stereochemistry of the new analogue (named as vicenistatin M) was determined by the synthesis of D-mycarose and of vicenistatin M itself. Biological testing of vicenistatin M suggested the importance of vicenisamine for exerting the cytotoxicity of vicenistatin.
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Affiliation(s)
- Y Matsushima
- Department of Chemistry, Tokyo Institute of Technology, Japan
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41
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Adachi M, Manji K, Ichimi R, Nishimori H, Shindo K, Matsubayashi N, Mbise RL, Massawe A, Liu Q, Kawamoto F, Chinzei Y, Sakurai M. Detection of congenital malaria by polymerase-chain-reaction methodology in Dar es Salaam, Tanzania. Parasitol Res 2000; 86:615-8. [PMID: 10952258 DOI: 10.1007/pl00008540] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The examination of congenital malaria was performed by Giemsa staining and polymerase-chain-reaction (PCR) methodology. We randomly selected 298 neonates who had been admitted to Muhimbili Medical Center (MMC) at Dar es Salaam, Tanzania. One baby among all the enrolled neonates was recognized as having a congenital malaria infection, which gave a prevalence of 0.33%. The present result was 5-fold the clinically recognized prevalence of congenital infection with malaria in the ward. The PCR method identified two cases, one of which was negative as determined by the Giemsa-staining method. Therefore, the PCR method was useful for the detection of scant amounts of malarial parasites in numerous blood samples. The screening of malaria by a sensitive PCR method contributes to reduce the mortality of asymptotic neonates in particular.
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Affiliation(s)
- M Adachi
- Department of Medical Zoology, Mie University School of Medicine, Tsu, Japan.
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42
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Shindo K, Masuda K, Takahashi H, Arata Y, Shimada I. Backbone 1H, 13C, and 15N resonance assignments of the anti-dansyl antibody Fv fragment. J Biomol NMR 2000; 17:357-358. [PMID: 11014603 DOI: 10.1023/a:1008331100127] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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43
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Yamada M, Kato K, Shindo K, Nomizu M, Sakairi N, Yamamoto H, Nishi N. Immobilization of DNA by UV irradiation and its utilization as functional materials. Nucleic Acids Symp Ser 2000:103-4. [PMID: 10780400 DOI: 10.1093/nass/42.1.103] [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: 11/14/2022]
Abstract
The water-insoluble DNA film was successfully prepared by UV irradiation. The DNA film was stable in water. It could effectively accumulated the DNA-binding intercalating materials, such as ethidium bromide, dibenzo-p-dioxin and benzo[a]pyrene, in their aqueous solutions. On the other hand, DNA was immobilized onto nonwoven cellulose fabrics, also by the UV irradiation. The DNA immobilized cloth was found to bind silver ions. The DNA-cloth containing silver ion showed antibacterial activity. The water-insoluble DNA prepared by UV irradiation has a potential ability to serve as biomaterials for medical, engineering and environmental objects.
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Affiliation(s)
- M Yamada
- Division of Bioscience, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Japan
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44
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Abstract
A venous cuff technique was applied only for venous drainage in orthotopic small bowel transplantation of rats. Rates of technical failure (death within 4 days) and in clinical signs were compared between the groups with (group A) and without (group B) venous cuff technique. Technical failures with and without venous cuff technique were 5% and 25%, respectively. Mean survival days, excluding deaths from technical failure, were 9.2 +/- 2.3 in group A and 8.1 +/- 2.6 days in group B. No significant differences were observed in mean survival days or in weight loss between the two groups. Acute rejection was the cause of death in both groups. Since the model with venous cuff technique showed low mortality, it could be widely employed in small bowel transplantation studies.
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Affiliation(s)
- T Kawabe
- First Department of Surgery, Kinki University School of Medicine, Osaka, Japan
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45
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Nishikido M, Koga S, Kanetake H, Saito Y, Harada T, Taguchi T, Matsuya F, Shindo K. Renal transplantation in systemic amyloidosis. Clin Transplant 2000; 13 Suppl 1:63-6. [PMID: 10751060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Renal transplantation was performed in a 24-yr-old woman with type AA systemic amyloidosis. Renal biopsy at 11 yr post-transplantation showed no amyloid recurrence, but the presence of mesangial proliferative glomerulonephritis and focal segmental glomerular sclerosis. Renal function was satisfactory with the exception of mild proteinuria. Symptoms related to systemic amyloidosis including goiter and cardiac deposition, improved post-transplantation. Renal transplantation is the recommended therapy for type AA systemic amyloidosis.
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Affiliation(s)
- M Nishikido
- Department of Urology, Nagasaki University School of Medicine, Japan
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46
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Shiozawa Z, Shindo K, Ohta E, Ohushi K, Nagamatsu M, Nagasaka T. A concise overview of recent breakthroughs in imaging of ALS. Amyotroph Lateral Scler Other Motor Neuron Disord 2000; 1 Suppl 2:S3-6. [PMID: 11464938 DOI: 10.1080/14660820052415763] [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: 10/16/2022]
Abstract
Numerous attempts have been made to visualize the motor cortex and pyramidal tract lesions in patients with ALS using magnetic resonance imaging (MRI), single photon emission computed tomography (SPECT) and positron emission tomography (PET). This paper briefly reviews the applicability of these imaging modalities in ALS.
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Affiliation(s)
- Z Shiozawa
- Department of Neurology, Yamanashi Medical University, Japan.
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47
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Shioya H, Kikuchi K, Suda Y, Shindo K. [Persistent primitive trigeminal artery presenting with Weber's syndrome: report of a case with three-dimensional CT angiographic evaluations]. No To Shinkei 2000; 52:315-9. [PMID: 10793418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
We report a rare case of persistent primitive trigeminal artery(PPTA) presenting with brain stem infarction known as Weber's syndrome, and document its unique findings of three-dimensional CT angiography(3 D-CTA). A 69-year-old woman was admitted to our hospital because of gait disturbance and blepharoptosis on the right eye. Neurological examination on admission revealed the right oculomotor nerve palsy, left hemiparesis and dysarthria, all of which indicated the signs and symptoms of Weber's syndrome. Initial CT scan revealed no abnormality, but a subsequent 3 D-CTA demonstrated the PPTA originating from the right internal carotid artery penetrate into the clivus directly to the distal basilar artery, on top of which a small saccular aneurysm was incidentally visualized. Right internal carotid angiograms showed the PPTA run between the cavernous segment of the internal carotid artery and the distal portion of the basilar artery with the filling of both the posterior cerebral and superior cerebellar arteries. However, the proximal portion of the basilar artery was visualized through the right vertebral artery and there was no blood flow to its distal portion. Evidence of infarction was finally confirmed at the right midbrain and thalamus by the MRI performed 5 days after the onset. With a conservative treatment including physical therapy, the patient recovered well from the deficits and could walk by herself with a cane. With regard to the pathogenesis of vertebrobasilar insufficiency in a patient with PPTA, it is generally considered that microembolus from an atherosclerotic carotid artery may be its cause because of the presence of direct communication between the anterior and posterior circulations. In the present case, however, this mechanism may not be applied since there was no evidence of atherosclerotic plaque or stenotic lesions on the carotid arteries. Alternatively, an embolic occlusion may have occurred in the paramedian branches of the posterior cerebral artery since a dilated PPTA itself, which resembled fusiform-aneurysm in appearance, may become the origin of microembolus.
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Affiliation(s)
- H Shioya
- Department of Neurosurgery, Yuri Kumiai General Hospital, Akita, Japan
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Noguchi M, Matsuya F, Udono M, Kanetake H, Shindo K. Epidermal down-growth in exit site of peritoneal dialysis catheter and a new peritoneal access technique. Perit Dial Int 2000; 20:234-7. [PMID: 10809250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Affiliation(s)
- M Noguchi
- Department of Urology, Nagasaki Municipal Medical Center, Japan
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Suzuki H, Ueno A, Takei M, Shindo K, Higa T, Fukamachi H. The effects of S1319, a novel marine sponge-derived beta2-adrenoceptor agonist, on IgE-mediated activation of human cultured mast cells. Inflamm Res 2000; 49:86-94. [PMID: 10738947 DOI: 10.1007/s000110050563] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE This study aimed to evaluate the ability of S1319 (4-hydroxy-7-[1-(1-hydroxy-2-methylamino) ethyl]-1,3-benzothiazol-2(3H)-one acetate), a novel beta2-adrenoceptor selective agonist derived from marine sponge, to inhibit IgE-mediated activation of human cultured mast cells (HCMC) in vitro. MATERIALS AND METHODS We examined the effect of S1319 (racemate) on tryptase release and tumor necrosis factor-alpha (TNF-alpha) production in HCMC generated from human cord blood cells, after cross-linking of high affinity immunoglobulin E receptors (FcepsilonRI), compared with those of the nonselective beta-adrenoceptor agonist, isoproterenol (R-isomer), the selective beta2-adrenoceptor agonist, salbutamol (racemate), and the selective and long-acting beta2-adrenoceptor agonist, formoterol (racemate). We also evaluated the effect of S1319 on the intracellular cAMP level, inositol phosphate production and protein tyrosine phosphorylation in HCMC. RESULTS S1319 and beta-adrenoceptor agonists inhibited the IgE-mediated release of tryptase. Approximate IC50 values of S1319, formoterol, isoproterenol and albuterol for the inhibition of tryptase release were 0.51+/-0.12, 0.15+/-0.1, 0.80+/-0.09, and 28+/-32.4 nM, respectively. S1319 and beta-adrenoceptor agonists also inhibited TNF-alpha production by HCMC in a concentration-dependent manner. Approximate IC50 values of S1319, formoterol and isoproterenol for the inhibition of TNF-alpha production were 0.19+/-0.03, 0.28+/-0.02 and 0.32+/-0.03 nM, respectively. S1319 caused a concentration-dependent increase in total cell cyclic AMP levels in HCMC. On the other hand, S1319 inhibited the accumulation of inositol 1,4,5-triphosphate and IgE-mediated protein tyrosine phosphorylation of 42-kDa protein, p42 mitogen activated protein (MAP) kinase (ERK-2). CONCLUSION These results indicate that S 1319 and beta-adrenoceptor agonists are potent inhibitors of the IgE-mediated release of mediators from HCMC.
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Affiliation(s)
- H Suzuki
- Pharmaceutical Research Laboratory, Kirin Brewery Co. Ltd., Gunma, Japan.
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