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Yanagisawa N, Kurita R. Cross over to collective rearrangements near the dry-wet transition in two-dimensional foams. Sci Rep 2023; 13:4939. [PMID: 36973314 PMCID: PMC10042865 DOI: 10.1038/s41598-023-31577-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 03/14/2023] [Indexed: 03/29/2023] Open
Abstract
Liquid foams respond plastically to external perturbations over some critical magnitude. This rearrangement process is directly related to the mechanical properties of the foams, playing a significant role in determining foam lifetime, deformability, elasticity, and fluidity. In this paper, we experimentally investigate the rearrangement dynamics of foams near a dry-wet transition. When a foam transforms from a dry state to a wet state, it is found that considering collective events, separated T1 events propagate in dry foams, while T1 events occur simultaneously in wet foams. This cross over to collective rearrangements is closely related to the change in local bubble arrangements and mobility. Furthermore, it is also found that a probability of collective rearrangement events occurring follows a Poisson distribution, suggesting that there is little correlation between discrete collective rearrangement events. These results constitute progress in understanding the dynamical properties of soft jammed systems, relevant for biological and material sciences as well as food science.
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Affiliation(s)
- Naoya Yanagisawa
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamioosawa, Hachiouji-shi, Tokyo, 192-0397, Japan.
| | - Rei Kurita
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamioosawa, Hachiouji-shi, Tokyo, 192-0397, Japan.
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2
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Abstract
Foams have unique properties that distinguish them from ordinary liquids and gases, and are ubiquitously observed in nature, both in biological systems and industrial products. Foams are known to eventually collapse over time; given their wide-range industrial application, understanding how bubbles in a foam collapse is an important aspect for product longevity and tailoring physical properties. Previously, it was shown that droplets are emitted during the collective bubble collapse, however the mechanism of the droplet emission in a foam is not yet clearly understood. It is directly related to the stability of the foam, thus we quantitatively investigate collapse dynamics in liquid films in a foam, and identify some unique features. When one film breaks, we see that the oscillation of the vertical Plateau border to which it is connected induces anomalous liquid transport from the edge of the border to the center. Once a crack appears near the border and a collapse front is formed, we find that the curvature of the front reverses as it migrates, followed by the emergence and emission of droplets. We elucidate the origins of this behavior and discuss the stability of foams, establishing how the characteristic time scales of the process relate to each other.
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Affiliation(s)
- Naoya Yanagisawa
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamioosawa, Hachiouji-Shi, Tokyo 192-0397, Japan.
| | - Marie Tani
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamioosawa, Hachiouji-Shi, Tokyo 192-0397, Japan.
| | - Rei Kurita
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamioosawa, Hachiouji-Shi, Tokyo 192-0397, Japan.
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Yanagisawa N, Kurita R. Size distribution dependence of collective relaxation dynamics in a two-dimensional wet foam. Sci Rep 2021; 11:2786. [PMID: 33531566 PMCID: PMC7854744 DOI: 10.1038/s41598-021-82267-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 01/18/2021] [Indexed: 11/09/2022] Open
Abstract
Foams can be ubiquitously observed in nature and in industrial products. Despite the relevance of their properties to deformation, fluidity, and collapse, all of which are essential for applications, there are few experimental studies of collective relaxation dynamics in a wet foam. Here, we directly observe how the relaxation dynamics changes with increasing liquid fraction in both monodisperse and polydisperse two-dimensional foams. As we increase the liquid fraction, we quantitatively characterize the slowing-down of the relaxation, and the increase of the correlation length. We also find two different relaxation modes which depend on the size distribution of the bubbles. It suggests that the bubbles which are simply near to each other play an important role in large rearrangements, not just those in direct contact. Finally, we confirm the generality of our experimental findings by a numerical simulation for the relaxation process of wet foams.
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Affiliation(s)
- Naoya Yanagisawa
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamioosawa, Hachiouji-shi, Tokyo, 192-0397, Japan.
| | - Rei Kurita
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamioosawa, Hachiouji-shi, Tokyo, 192-0397, Japan.
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4
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Okuzumi A, Hatano T, Kamagata K, Hori M, Mori A, Oji Y, Taniguchi D, Daida K, Shimo Y, Yanagisawa N, Nojiri S, Aoki S, Hattori N. Neuromelanin or DaT-SPECT: which is the better marker for discriminating advanced Parkinson's disease? Eur J Neurol 2019; 26:1408-1416. [PMID: 31136060 PMCID: PMC6851628 DOI: 10.1111/ene.14009] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 11/27/2018] [Accepted: 05/23/2019] [Indexed: 01/10/2023]
Abstract
Background and purpose Whether the neuromelanin‐positive substantia nigra pars compacta area (NM‐SNc) on neuromelanin magnetic resonance imaging (NM‐MRI) and the specific binding ratio (SBR) on 123I‐N‐v‐fluoropropyl‐2b‐carbomethoxy3b‐(4‐iodophenyl)nortropane single photon emission computed tomography (DaT‐SPECT) can be correlated with motor fluctuations (MFs) in advanced Parkinson's disease (PD) was investigated. Methods Thirty‐five PD patients (60 ± 13 years) and 23 healthy individuals as controls (59 ± 19 years) were enrolled. The relationships between NM‐MRI and DaT‐SPECT were prospectively examined in two subgroups divided according to the presence or absence of MFs. Multivariate analysis was performed using the Cox proportional hazard model to screen for association factors. Results The NM‐SNc size was correlated with the SBR (Spearman's ρ = 0.43, P < 0.05). The NM‐SNc size was significantly reduced in PD with MFs compared with the subgroup without (P < 0.001), whereas the SBR did not significantly differ between the groups. NM‐SNc size was a significant association factor for MFs (hazard ratio 0.94, P = 0.04). In receiver operating characteristic analysis of the factors for MF occurrence, the area under the receiver operating characteristic curve of the NM‐SNc size showed a significant difference of 0.89 (P < 0.05) but no significant difference was found in the SBR. Conclusions NM‐SNc size was significantly correlated with the SBR in PD, but several factors in advanced PD were more closely associated with NM‐SNc size than the SBR. NM‐MRI might reflect the status of advanced PD more accurately than DaT‐SPECT. Therefore, NM‐MRI appears to provide a better marker for discriminating advanced PD than DaT‐SPECT.
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Affiliation(s)
- A Okuzumi
- Department of Neurology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - T Hatano
- Department of Neurology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - K Kamagata
- Department of Radiology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - M Hori
- Department of Radiology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - A Mori
- Department of Neurology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Y Oji
- Department of Neurology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - D Taniguchi
- Department of Neurology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - K Daida
- Department of Neurology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Y Shimo
- Department of Neurology, Graduate School of Medicine, Juntendo University, Tokyo, Japan.,Department of Research and Therapeutics for Movement Disorders, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - N Yanagisawa
- Medical Technology Innovation Center, Clinical Research and Trial Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - S Nojiri
- Medical Technology Innovation Center, Clinical Research and Trial Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - S Aoki
- Department of Radiology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - N Hattori
- Department of Neurology, Graduate School of Medicine, Juntendo University, Tokyo, Japan.,Department of Research and Therapeutics for Movement Disorders, Juntendo University Graduate School of Medicine, Tokyo, Japan
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5
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Yanagisawa N, Kurita R. In-situ observation of collective bubble collapse dynamics in a quasi-two-dimensional foam. Sci Rep 2019; 9:5152. [PMID: 30914759 PMCID: PMC6435646 DOI: 10.1038/s41598-019-41486-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 03/08/2019] [Indexed: 11/30/2022] Open
Abstract
The stability of foams is an important subject not only for fundamental science, but for applications in daily life. The most destructive phenomenon underpinning foam collapse is a collective bubble collapse, yet the mechanism behind this is unclear. In this study, we clarify the dynamics of the collective bubble collapse in a quasi-two-dimensional foam by in-situ observation with a high speed camera. We find two modes for collective bubble collapse: one is the propagation of liquid film breakage via impact with the stream of another broken liquid film. The other is breakage of a distant liquid film due to penetration by a liquid droplet, emitted by impact with the flow of a broken liquid film. As the liquid fraction increases, the velocity of liquid droplets decreases. Instead of penetration, the liquid droplet bounces like a billiard ball or it is absorbed into other films.
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Affiliation(s)
- Naoya Yanagisawa
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamioosawa, Hachiouji-shi, Tokyo, 192-0397, Japan
| | - Rei Kurita
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamioosawa, Hachiouji-shi, Tokyo, 192-0397, Japan.
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Lau ASY, Yanagisawa N, Hor YY, Lew LC, Ong JS, Chuah LO, Lee YY, Choi SB, Rashid F, Wahid N, Sugahara H, Xiao JZ, Liong MT. Bifidobacterium longum BB536 alleviated upper respiratory illnesses and modulated gut microbiota profiles in Malaysian pre-school children. Benef Microbes 2017; 9:61-70. [PMID: 29065707 DOI: 10.3920/bm2017.0063] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This 10-months randomised, double-blind, parallel and placebo-controlled study evaluated the effects of Bifidobacterium longum BB536 on diarrhoea and/or upper respiratory illnesses in 520 healthy Malaysian pre-school children aged 2-6 years old. The subjects randomly received a one-gram sachet containing either BB536 (5×109 cfu) or placebo daily. Data analysis was performed on 219 subjects who fully complied over 10-months (placebo n=110, BB536 n=109). While BB536 did not exert significant effects against diarrhoea in children, Poisson regression with generalised estimating equations model indicated significant intergroup difference in the mean number of times of respiratory illnesses over 10 months. The duration of sore throat was reduced by 46% (P=0.018), with marginal reduction for duration of fever (reduced by 27%, P=0.084), runny nose (reduced by 15%, P=0.087) and cough (reduced by 16%, P=0.087) as compared to the placebo. Principal coordinate analysis at genus level of the gut microbiota revealed significant differences between 0 and 10 months in the BB536 group (P<0.01) but not in placebo group (P>0.05). The abundance of the genus Faecalibacterium which is associated with anti-inflammatory and immuno-modulatory properties was significantly higher in the BB536 group (P<0.05) compared to the placebo group. Altogether, our present study illustrated the potential protective effects of BB536 against upper respiratory illnesses in pre-school Malaysian children, with gut microbiota modulating properties.
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Affiliation(s)
- A S-Y Lau
- 1 School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - N Yanagisawa
- 2 Next Generation Science Institute, Morinaga Milk Industry Co., Ltd., Zama 252-8583, Japan
| | - Y-Y Hor
- 1 School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - L-C Lew
- 1 School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - J-S Ong
- 1 School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - L-O Chuah
- 1 School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Y-Y Lee
- 3 School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Malaysia
| | - S-B Choi
- 1 School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - F Rashid
- 3 School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Malaysia
| | - N Wahid
- 4 Community Health Center, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - H Sugahara
- 2 Next Generation Science Institute, Morinaga Milk Industry Co., Ltd., Zama 252-8583, Japan
| | - J-Z Xiao
- 2 Next Generation Science Institute, Morinaga Milk Industry Co., Ltd., Zama 252-8583, Japan
| | - M-T Liong
- 1 School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
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7
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Abstract
The states of foam are empirically classified into dry foam and wet foam by the volume fraction of the liquid. Recently, a transition between the dry foam state and the wet foam state has been found by characterizing the bubble shapes [Furuta et al., Sci. Rep. 6, 37506 (2016)2045-232210.1038/srep37506]. In the literature, it is indirectly ascertained that the transition from the dry to the wet form is related to the onset of the rearrangement of the bubbles, namely, the liquid fraction at which the bubbles become able to move to replace their positions. The bubble shape is a static property, and the rearrangement of the bubbles is a dynamic property. Thus, we investigate the relation between the bubble shape transition and the rearrangement event occurring in a collapsing process of the bubbles in a quasi-two-dimensional foam system. The current setup brings a good advantage to observe the above transitions, since the liquid fraction of the foam continuously changes in the system. It is revealed that the rearrangement of the bubbles takes place at the dry-wet transition point where the characteristics of the bubble shape change.
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Affiliation(s)
- Rei Kurita
- Department of Physics, Tokyo Metropolitan University, Minamioosawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Yujiro Furuta
- Department of Physics, Tokyo Metropolitan University, Minamioosawa, Hachioji-shi, Tokyo 192-0397, Japan
- Department of Physics, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Naoya Yanagisawa
- Department of Physics, Tokyo Metropolitan University, Minamioosawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Noriko Oikawa
- Department of Physics, Tokyo Metropolitan University, Minamioosawa, Hachioji-shi, Tokyo 192-0397, Japan
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8
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Higuchi T, Haruta I, Shibata N, Yanagisawa N, Yagi J. Flagellar filament structural protein induces Sjögren's syndrome-like sialadenitis in mice. Oral Dis 2017; 23:636-643. [PMID: 28142222 DOI: 10.1111/odi.12649] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 11/10/2016] [Revised: 12/31/2016] [Accepted: 01/23/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Sjögren's syndrome (SS) is a systemic autoimmune disease that primarily affects lacrimal and salivary glands. We previously reported that FliC derived from Escherichia coli could induce autoimmune pancreatitis-like lesions. From these results, we speculated that FliC could also induce SS-like exocrinopathy. In this study, we investigated the effects of chronic exposure to FliC on lacrimal and salivary glands and the possibility that it might lead to an autoimmune response. METHODS C57BL/6 mice were repeatedly injected with FliC and histological changes, serum levels of cytokine/chemokines and autoantibodies were evaluated at different time points after the final injection. The presence of sialadenitis was diagnosed by histological methods. RESULTS In FliC-treated groups, 57% of subjects developed inflammatory cell infiltrates around ducts in mandibular salivary glands, but not lacrimal glands. In addition, serum levels of total IgG, IgG1, and IgG2a were significantly higher in FliC-treated groups. Intriguingly, serum anti-SSA/Ro levels were also significantly higher in FliC-treated groups. Cytokine analysis revealed that serum levels of IL-1β, IL-12p70, IL-13, IFN-γ, IL-15, and IL-23 seemed to be higher in FliC-treated mice. CONCLUSIONS Our data suggest that FliC-treated mice develop an SS-like phenotype. Our model may elucidate the relationship between commensal bacteria and SS.
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Affiliation(s)
- T Higuchi
- Department of Microbiology and Immunology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan
| | - I Haruta
- Department of Microbiology and Immunology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan
| | - N Shibata
- Department of Pathology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan
| | - N Yanagisawa
- Department of Microbiology and Immunology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan
| | - J Yagi
- Department of Microbiology and Immunology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan
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9
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Matsushita N, Osaka T, Haruta I, Ueshiba H, Yanagisawa N, Omori-Miyake M, Hashimoto E, Shibata N, Tokushige K, Saito K, Tsuneda S, Yagi J. Effect of Lipopolysaccharide on the Progression of Non-Alcoholic Fatty Liver Disease in High Caloric Diet-Fed Mice. Scand J Immunol 2016; 83:109-18. [PMID: 26524607 DOI: 10.1111/sji.12397] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 10/22/2015] [Indexed: 12/17/2022]
Abstract
The incidence of non-alcoholic steatohepatitis (NASH) is increasing. Because gut microbiota have been highlighted as one of the key factors in the pathogenesis of metabolic syndrome, we investigated the involvement of the bacterial component in the progression of non-alcoholic fatty liver (NAFL) to NASH. C57BL/6 mice were fed with maintenance food (MF, groups A and B) or a high caloric diet (HCD, groups C and D) for 1 month. Mice were then divided into four groups: Groups A and C were inoculated with PBS, while groups B and D were inoculated with lipopolysaccharide (LPS) plus complete Freund's adjuvant (CFA). The inoculations were performed a total of 3 times over 3 months. At 6 months, while hepatic steatosis was observed in groups C and D, cellular infiltration and fibrosis were less evident in group C than in group D. Inflammatory cytokines were upregulated in groups B and D. 16S rRNA pyrosequencing of whole colon homogenates containing faeces showed that certain bacterial groups, such as Bacteroidaceae, Peptostreptococcaceae and Erysipelotrichaceae, were increased in groups C and D. Although loading of bacterial components (LPS) resulted in hepatic inflammation in both MF- and HCD-fed mice, HCD feeding was more crucial in the progression of NAFL during the triggering phase.
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Affiliation(s)
- N Matsushita
- Support Center for Women Health Care Professionals and Researchers, Tokyo Women's Medical University, Tokyo, Japan.,Department of Medicine and Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - T Osaka
- Department of Life Science and Medical Bioscience, Waseda University, Tokyo, Japan.,Department of Microbiology and Immunology, Tokyo Women's Medical University, Tokyo, Japan
| | - I Haruta
- Department of Medicine and Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan.,Department of Microbiology and Immunology, Tokyo Women's Medical University, Tokyo, Japan
| | - H Ueshiba
- Institute of Laboratory Animals, Tokyo Women's Medical University, Tokyo, Japan
| | - N Yanagisawa
- Department of Microbiology and Immunology, Tokyo Women's Medical University, Tokyo, Japan
| | - M Omori-Miyake
- Department of Microbiology and Immunology, Tokyo Women's Medical University, Tokyo, Japan
| | - E Hashimoto
- Department of Medicine and Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - N Shibata
- Department of Pathology, Tokyo Women's Medical University, Tokyo, Japan
| | - K Tokushige
- Department of Medicine and Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - K Saito
- Support Center for Women Health Care Professionals and Researchers, Tokyo Women's Medical University, Tokyo, Japan
| | - S Tsuneda
- Department of Life Science and Medical Bioscience, Waseda University, Tokyo, Japan
| | - J Yagi
- Department of Microbiology and Immunology, Tokyo Women's Medical University, Tokyo, Japan
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Borras M, Roig J, Betriu A, Vilar A, Hernandez M, Martin M, Fernandez ED, Dounousi E, Kiatou V, Papagianni A, Zikou X, Pappas K, Pappas E, Tatsioni A, Tsakiris D, Siamopoulos KC, Kim JK, Kim Y, Kim SG, Kim HJ, Ahn SY, Chin HJ, Oh KH, Ahn C, Chae DW, Yazici R, Altintepe L, Bakdik S, Guney I, Arslan S, Topal M, Karagoz A, Stefan G, Mircescu G, Capusa C, Stancu S, Petrescu L, Alecu S, Nedelcu D, Bennett AHL, Pham H, Garrity M, Magdeleyns E, Vermeer C, Zhang M, Ni Z, Zhu M, Yan J, Mou S, Wang Q, Qian J, Saade A, Karavetian M, ElZein H, de Vries N, de Haseth DE, Lay Penne E, van Dam B, Bax WA, Bots ML, Grooteman MPC, van den Dorpel RA, Blankenstijn PJ, Nube MJ, Wee PM, Park JH, Jo YI, Lee JH, Cianfrone P, Comi N, Lucisano G, Piraina V, Talarico R, Fuiano G, Toyonaga M, Fukami K, Yamagishi SI, Kaida Y, Nakayama Y, Ando R, Obara N, Ueda S, Okuda S, Granatova J, Havrda M, Hruskova Z, Tesar V, Viklicky O, Rysava R, Rychlik I, Kratka K, Honsova E, Vernerova Z, Maluskova J, Vranova J, Bolkova M, Borecka K, Benakova H, Zima T, Lu KC, Yang HY, Su SL, Cao YH, Lv LL, Liu BC, Zeng R, Gao XF, Deng YY, Boelaert J, t' Kindt R, Glorieux G, Schepers E, Jorge L, Neirynck N, Lynen F, Sandra P, Sandra K, Vanholder R, Yamamoto T, Nameta M, Yoshida Y, Uhlen M, Shi Y, Tang J, Zhang J, An Y, Liao Y, Li Y, Tao Y, Wang L, Koibuchi K, Tanaka K, Aoki T, Miyagi M, Sakai K, Aikawa A, Martins AR, Branco PQ, Serra FM, Matias PJ, Lucas CP, Adragao T, Duarte J, Oliveira MM, Saraiva AM, Barata JD, Masola V, Zaza G, Granata S, Proglio M, Pontrelli P, Abaterusso C, Schena F, Gesualdo L, Gambaro G, Lupo A, Pruijm M, Hofmann L, Stuber M, Zweiacker C, Piskunowicz M, Muller ME, Vogt B, Burnier M, Togashi N, Yamashita T, Mita T, Ohnuma Y, Hasegawa T, Endo T, Tsuchida A, Ando T, Yoshida H, Miura T, Bevins A, Assi L, Ritchie J, Jesky M, Stringer S, Kalra P, Hutchison C, Harding S, Cockwell P, Viccica G, Cupisti A, Chiavistelli S, Borsari S, Pardi E, Centoni R, Fumagalli G, Cetani F, Marcocci C, Scully P, O'Flaherty D, Sankaralingam A, Hampson G, Goldsmith DJ, Pallet N, Chauvet S, Beaune P, Nochy D, Thervet E, Karras A, Bertho G, Gallyamov MG, Saginova EA, Severova MM, Krasnova TN, Kopylova AA, Cho E, Jo SK, Kim MG, Cho WY, kim HK, Trivin C, Metzger M, Boffa JJ, Vrtovsnik F, Houiller P, Haymann JP, Flamant M, Stengel B, Thervet E, Roozbeh J, Yavari V, Pakfetrat M, Zolghadr AA, Kim CS, Kim MJ, Kang YU, Choi JS, Bae EH, Ma SK, Kim SW, Lemoine S, Guebre-Egziabher F, Dubourg L, Hadj-Aissa A, Blumberg S, Katzir Z, Biro A, Cernes R, Barnea Z, Vasquez D, Gordillo R, Aller C, Fernandez B, Jabary N, Perez V, Mendiluce A, Bustamante J, Coca A, Goek ON, Sekula P, Prehn C, Meisinger C, Gieger C, Suhre K, Adamski J, Kastenmuller G, Kottgen A, Kuzniewski M, Fedak D, Dumnicka P, Solnica B, Kusnierz-Cabala B, Kapusta M, Sulowicz W, Drozdz R, Zawada AM, Rogacev KS, Hummel B, Fliser D, Geisel J, Heine GH, Kretschmer A, Volsek M, Krahn T, Kolkhof P, Kribben A, Bruck H, Koh ES, Chung S, Yoon HE, Park CW, Chang YS, Shin SJ, Deagostini MC, Vigotti FN, Ferraresi M, Consiglio V, Scognamiglio S, Moro I, Clari R, Daidola G, Versino E, Piccoli GB, Mammadrahim Agayev M, Mehrali Mammadova I, Qarib Ismayilova S, Anguiano L, Riera M, Pascual J, Barrios C, Betriu A, Valdivielso JM, Fernandez E, Soler MJ, Tsarpali V, Liakopoulos V, Panagopoulou E, Kapoukranidou D, Spaia S, Kostopoulou M, Michalaki A, Nikitidou O, Dombros N, Zhu F, Abba S, Flores-Gama C, Williams C, Cartagena C, Carter M, Kotanko P, Levin NW, Kolesnyk M, Stepanova N, Driyanska V, Stashevska N, Kundin V, Shifris I, Dudar I, Zaporozhets O, Keda T, Ishchenko M, Khil M, Choe JY, Nam SA, Kim J, Cha JH, Gliga ML, Irimescu CG, Caldararu CD, Gliga MG, Toma LV, Gomotarceanu A, Park Y, Kim Y, Jeon J, Kwon SK, Kim SJ, Kim SM, Kim HY, Montero N, Soler MJ, Barrios C, Marquez E, Berrada A, Arias C, Prada JA, Orfila MA, Mojal S, Vilaplana C, Pascual J, Vigotti FN, Attini R, Parisi S, Fassio F, Deagostini MC, Ghiotto S, Ferraresi M, Clari R, Biolcati M, Todros T, Piccoli GB, Jin K, Vaziri ND, Tramonti G, Romiti N, Chieli E, Maksudova AN, Khusnutdinova LA, Tang J, Shi Y, Zhang J, Li Y, An Y, Tao Y, Wang L, Reque JE, Quiroga B, Lopez JM, Verdallez UG, Garcia de Vinuesa M, Goicoechea M, Nayara PG, Arroyo DR, Luno J, Tanaka H, Flores-Gama C, Abbas SR, Williams C, Cartagena C, Carter M, Thijssen S, Kotanko P, Levin NW, Zhu F, Berthoux FC, Azzouz L, Afiani A, Ziane A, Mariat C, Fournier H, Kusztal M, Dzierzek P, Witkowski G, Nurzynski M, Golebiowski T, Weyde W, Klinger M, Altiparmak MR, Seyahi N, Trabulus S, Bolayirli M, Andican ZG, Suleymanlar G, Serdengecti K, Niculae A, Checherita IA, Neagoe DN, Ciocalteu A, Seiler S, Rogacev KS, Pickering JW, Emrich I, Fliser D, Heine G, Bargnoux AS, Obiols J, Kuster N, Fessler P, Badiou S, Dupuy AM, Ribstein J, Cristol JP, Yanagisawa N, Ando M, Ajisawa A, Tsuchiya K, Nitta K, Bouquegneau A, Cavalier E, Krzesinski JM, Delanaye P, Tominaga N, Shibagaki Y, Kida K, Miyake F, Kimura K, Ayvazyan A, Rameev V, Kozlovskaya L, Simonyan A, Scholze A, Marckmann P, Tepel M, Rasmussen LM, Hara M, Ando M, Tsuchiya K, Nitta K, Kanai H, Harada K, Tamura Y, Kawai Y, Al-Jebouri MM, Madash SA, Leonidovna Berezinets O, Nicolaevich Rossolovskiy A. Lab methods / biomarkers. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Agnes H, Kalman P, Jozsef A, Henrik B, Mucsi I, Kamata K, Sano T, Naito S, Okamoto T, Okina C, Kamata M, Murano J, Kobayashi K, Uchida M, Aoyama T, Takeuchi Y, Nagaba Y, Sakamoto H, Torino C, Torino C, Panuccio V, Clementi A, Garozzo M, Bonanno G, Boito R, Natale G, Cicchetti T, Chippari A, Logozzo D, Alati G, Cassani S, Sellaro A, D'arrigo G, Tripepi G, Roberta A, Postorino M, Mallamaci F, Zoccali C, Buonanno E, Brancaccio S, Fimiani V, Napolitano P, Spadola R, Morrone L, DI Iorio B, Russo D, Betriu A, Martinez-Alonso M, Vidal T, Valdivielso J, Fernandez E, Bernadette F, Jean-Baptiste B, Frimat L, Madala ND, Thusi GP, Sibisi N, Mazibuko BG, Assounga AGH, Tsai NC, Wang HH, Chen YC, Hung CC, Hwang SJ, Chen HC, Branco P, Adragao T, Birne R, Martins AR, Vizinho R, Gaspar A, Grilo MJ, Barata JD, Bonhorst D, Adragao P, Kim JS, Yang JW, Kim MK, Choi SO, Han BG, Nathalie N, Sunny E, Glorieux G, Daniela B, Fellype B, Sophie L, Horst D L, Ziad M, Raymond V, Yanai M, Okada K, Takeuchi K, Nitta K, Takahashi S, Morena M, Jaussent I, Halkovich A, Dupuy AM, Bargnoux AS, Chenine L, Leray-Moragues H, Klouche K, Vernhet H, Canaud B, Cristol JP, Shutov A, Serov V, Kuznetsova J, Menzorov M, Serova D, Petrescu L, Zugravu A, Capusa C, Stancu S, Cinca S, Anghel C, Timofte D, Medrihan L, Ionescu D, Mircescu G, Hsu TW, Kuo KL, Hung SC, Tarng DC, Lee S, Kim I, Lee D, Rhee H, Song S, Seong E, Kwak I, Holzmann M, Gardell C, Jeppsson A, Sartipy U, Solak Y, Yilmaz MI, Caglar K, Saglam M, Yaman H, Sonmez A, Unal HU, Gok M, Gaipov A, Kayrak M, Eyileten T, Turk S, Vural A, DI Lullo L, Floccari F, Rivera R, Granata A, D'amelio A, Logias F, Otranto G, Malaguti M, Santoboni A, Fiorini F, Connor T, Oygar D, Nitsch D, Gale D, Steenkamp R, Neild GH, Maxwell P, Louise Hogsbro I, Redal-Baigorri B, Sautenet B, Halimi JM, Caille A, Goupille P, Giraudeau B, Solak Y, Yilmaz MI, Caglar K, Saglam M, Yaman H, Unal HU, Gok M, Oguz Y, Gaipov A, Yenicesu M, Cetinkaya H, Eyileten T, Turk S, Vural A, Chen YC, Wang HH, Tsai NC, Hung CC, Hwang SJ, Chen HC, Ishimoto Y, Ohki T, Sugahara M, Kanemitsu T, Kobayashi M, Uchida L, Kotera N, Tanaka S, Sugimoto T, Mise N, Miyazaki N, Matsumoto J, Murata I, Yoshida G, Morishita K, Ushikoshi H, Nishigaki K, Ogura S, Minatoguchi S, Harvey R, Harvey R, Ala A, Banerjee D, Farmer C, Irving J, Hobbs H, Wheeler T, Klebe B, Stevens P, Selim G, Selim G, Stojceva-Taneva O, Tozija L, Stojcev N, Gelev S, Dzekova-Vidimliski P, Pavleska S, Sikole A, Qureshi AR, Evans M, Stendahl M, Prutz KG, Elinder CG, Tamagaki K, Kado H, Nakata M, Kitani T, Ota N, Ishida R, Matsuoka E, Shiotsu Y, Ishida M, Mori Y, Christelle M, Rognant N, Evelyne D, Sophie F, Laurent J, Maurice L, Silverwood R, Pierce M, Kuh D, Savage C, Ferro C, Nitsch D, Moniek DG, De Goeij M, Nynke H, Gurbey O, Joris R, Friedo D, Clayton P, Grace B, Cass A, Mcdonald S, Lorenzo V, Martin Conde M, Betriu A, Dusso A, Valdivielso JM, Fernandez E, Roggeri DP, Cannella G, Cozzolino M, Mazzaferro S, Messa P, Brancaccio D, De Souza Faria R, Fernandes N, Lovisi J, Moura Marta M, Reboredo M, Do Vale Pinheiro B, Bastos M, Hundt F, Hundt F, Pabst S, Hammerstingl C, Gerhardt T, Skowasch D, Woitas R, Lopes AA, Silva LF, Matos CM, Martins MS, Silva FA, Lopes GB, Pizzarelli F, Dattolo P, Tripepi G, Michelassi S, Rossi C, Bandinelli S, Mieth M, Mass R, Ferrucci L, Zoccali C, Parisi S, Arduino S, Attini R, Fassio F, Biolcati M, Pagano A, Bossotti C, Ferraresi M, Gaglioti P, Todros T, Piccoli GB, Salgado TM, Arguello B, Benrimoj SI, Fernandez-Llimos F, Bailey P, Tomson C, Ben-Shlomo Y, Santoro A, Rucci P, Mandreoli M, Caruso F, Corradini M, Flachi M, Gibertoni D, Rigotti A, Russo G, Fantini M, Mahapatra HS, Choudhury S, Buxi G, Sharma N, Gupta Y, Sekhar V, Mahapatra HS, Choudhury S, Buxi G, Sharma N, Gupta Y, Sekhar V, Yanagisawa N, Ando M, Ajisawa A, Tsuchiya K, Nitta K, Janusz O, Mikolaj M, Jacek M, Boleslaw R, Prakash S, Coffin R, Schold J, Einstadter D, Stark S, Rodgers D, Howard M, Sehgal A, Stevens P, Irving J, Wheeler T, Klebe B, Farmer C, Palmer S, Tong A, Manns B, Craig J, Ruospo M, Gargano L, Strippoli G, Ruospo M, Palmer S, Vecchio M, Gargano L, Petruzzi M, De Benedictis M, Pellegrini F, Strippoli G, Ohno Y, Ishimura E, Naganuma T, Kondo K, Fukushima W, Mui K, Inaba M, Hirota Y, Sun X, Sun X, Jiang S, Gu H, Chen Y, XI C, Qiao X, Chen X, Daher E, Junior GS, Jacinto CN, Pimentel RS, Aguiar GBR, Lima CB, Borges RC, Mota LPC, Melo JVL, Melo SA, Canamary VT, Alves M, Araujo SMHA, Chen YC, Hung CC, Huang YK, Tsai NC, Wang HH, Hung CC, Hwang SJ, Chen HC, Rogacev K, Cremers B, Zawada A, Seiler S, Binder N, Ege P, Grosse-Dunker G, Heisel I, Hornof F, Jeken J, Rebling N, Ulrich C, Scheller B, Bohm M, Fliser D, Heine GH, Robinson B, Wang M, Bieber B, Fluck R, Kerr PG, Wikstrom B, Krishnan M, Nissenson A, Pisoni RL, Mykleset S, Osthus TB, Waldum B, Os I, Buttigieg J, Buttigieg J, Cassar A, Farrugia Agius J, Redal-Baigorri B, Hara M, Ando M, Tsuchiya K, Nitta K, Yamato M, Yasuda K, Sasaki K. Clinical Nephrology - Epidemiology II. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs236] [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: 11/13/2022] Open
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Deitch EA, Fujita T, Yanagisawa N. Gut-origin sepsis: evolution of a concept. Surgeon 2012; 10:350-6. [PMID: 22534256 DOI: 10.1016/j.surge.2012.03.003] [Citation(s) in RCA: 226] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 03/19/2012] [Accepted: 03/19/2012] [Indexed: 12/12/2022]
Abstract
The concept of bacterial translocation and gut-origin sepsis as a cause of systemic infectious complications and the multiple organ dysfunction syndrome (MODS) in surgical and ICU patients has emerged over the last several decades, although the exact clinical relevance of these phenomena continues to be debated. Thus, the goal of this review is to trace the evolution of gut-origin sepsis and gut-induced MODS and put these disorders and observations into clinical perspective. Additionally, the mechanisms leading to gut-derived complications are explored as well as therapeutic options to limit or prevent these complications. From this work, several major conclusions emerge. First, that bacterial translocation occurs clinically and is responsible for increased infectious complications in patients undergoing major abdominal surgery. However, the phenomenon of bacterial translocation is not sufficient to explain the development of MODS in ICU patients. Instead, the development of MODS in these high-risk patients is likely due to gut injury and the systemic spread of non-microbial, tissue-injurious factors that reach the systemic circulation via the intestinal lymphatics. These observations have resulted in the gut-lymph hypothesis of MODS.
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Bolignano D, Zanoli L, Rastelli S, Marcantoni C, Coppolino G, Lucisano G, Tamburino C, Battaglia E, Castellino P, Coppolino G, Lucisano G, Presta P, Battaglia E, Pedrelli L, Bolignano D, Rastelli S, Zanoli L, Marcantoni C, Bolignano D, Coppolino G, Battaglia E, Tamburino C, Castellino P, Bolignano D, Zanoli L, Rastelli S, Marcantoni C, Coppolino G, Lucisano G, Battaglia E, Tamburino C, Castellino P, Iiadis F, Ntemka A, Didangelos T, Makedou A, Divani M, Moralidis E, Makedou K, Gotzamani-Psarakou A, Grekas D, Selistre L, Souza V, Domanova O, Cochat P, Ranchin B, Varennes A, Dubourg L, Hadj-Aissa A, Leonardis D, Mallamaci F, Enia G, Postorino M, Tripepi G, Zoccali C, MAURO Working Group, Donadio C, Kanaki A, Caprio F, Donadio E, Tognotti D, Olivieri L, Eloot S, Schepers E, Barreto D, Barreto F, Liabeuf S, Van Biesen W, Verbeke F, Glorieux G, Choukroun G, Massy Z, Vanholder R, Chaaban A, Torab F, Abouchacra S, Bernieh B, Hussein Q, Osman M, Gebran N, Kayyal Y, Al Omary H, Nagelkerke N, Horio M, Imai E, Yasuda Y, Takahara S, Watanabe T, Matsuo S, Fujimi A, Ueda S, Fukami K, Obara N, Okuda S, Pecchini P, Mieth M, Mass R, Tripepi G, Malberti F, Mallamaci F, Quinn R, Zoccali C, Ravani P, Fujii H, Kono K, Nakai K, Goto S, Fukagawa M, Nishi S, Havrda M, Granatova J, Vernerova Z, Vranova J, Hornova L, Zabka J, Rychlik I, Kratka K, De Nicola L, Zamboli P, Mascia S, Calabria M, Grimaldi M, Conte G, Minutolo R, Gluhovschi G, Modilca M, Kaycsa A, Velciov S, Gluhovschi C, Bob F, Petrica L, Bozdog G, Methven S, Traynor J, Deighan C, O'Reilly D, MacGregor M, Szotowska M, Chudek J, Adamczak M, Wiecek A, Dudar I, Shifris I, Loboda O, Yanagisawa N, Ando M, Tsuchiya K, Nitta K, Heguilen R, Liste A, Canteli M, Muguerza G, Cohen L, Ortemberg M, Hermes R, Bernasconi A, Galli D, Miani N, Staffolani E, Nicolais R, Borzacchi MS, Tozzo C, Manca di Villahermosa S, Di Daniele N, Musial K, Zwolinska D, Loriga G, Carru C, Zinellu A, Milia A, Satta AE, Frolova I, Kuryata A, Koppe L, Kalabacher E, Pelletier C, Geloen A, Fouque D, Soulage C, Feriozzi S, Torras J, Cybulla M, Nicholls K, Sunder-Plassmann G, West M. Progression & risk factors CKD 1-5 (1). Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bouba I, Bountouri C, Dounousi E, Kiatou V, Georgiou I, Chatzidakis S, Kotzadamis N, Tsakiris D, Siamopoulos K, Dimas G, Iliadis F, Tegos T, Makedou K, Didangelos T, Pitsalidis C, Chatziapostolou A, Makedou A, Baloyannis S, Grekas D, Li O, Bobkova I, Tchebotareva N, Kozlovskaya L, Varshavskiy V, Mydlik M, Derzsiova K, Bohu B, Clapp E, Kosmadakis G, Smith A, Viana J, Shirreffs S, Maughan R, Feehally J, Bevington A, Ando M, Yanagisawa N, Hara M, Tsuchiya K, Nitta K, Chen CH, Wang CL, Huang JW, Hung KY, Tsai TJ, Gadalean F, Gluhovschi G, Kaycsa A, Trandafirescu V, Petrica L, Velciov S, Bozdog G, Gluhovschi C, Bob F, Solberg Eikrem O, Hope Jaeger-Hoie E, Hausken T, Svarstad E, de Goeij M, Liem M, de Jager D, Voormolen N, Sijpkens Y, Boeschoten E, Dekker F, Grootendorst D, Halbesma N, Moran AM, Kenny E, Ward F, Dunne OM, Holian J, Watson AJ, Saginova E, Gallyamov M, Severova M, Surkova O, Fomin V, Topchii I, Kirienko A, Schenyavskaya E, Efimova N, Bondar T, Lesovaja A, Gama Axelsson T, Barany P, Heimburger O, Lindholm B, Stenvinkel P, Qureshi AR, Bal Z, Erkmen Uyar M, Ahmed N, Tutal E, Sezer S, Labrador PJ, Gonzalez Castillo PM, Silva Junior GB, Liborio AB, Lopes Filho AS, Figueiredo Filho AC, Vieira APF, Couto Bem AX, Guedes ALMO, Costa CMBE, Holanda de Souza J, Daher EF, Donadio C, Kanaki A, Tognotti D, Donadio E, Reznik E, Guschina V, Volinkina V, Gendlin G, Storozhakov G, Capusa C, Stancu S, Badulescu M, Ilyes A, Anghel C, Mircescu G, Yonemoto S, Fujii N, Hamano T, Okuno A, Soda T, Yamanaka K, Hirai T, Nishimura K, Ichikawa Y, Boudville N, Kemp A, Champion de Crespigny P, Fassett R, Healy H, Mangos G, Moody H, Pedagogos E, Waugh D, Kirkland G, Kay T, Hoffman D, Abaterusso C, Branco C, Thomaseth K, Graziani MS, Lupo A, Chaudhry M, Lok C, Kudo K, Konta T, Takasaki S, Degawa N, Kubota I, Nykula T, Moyseyenko V, Topchii A, Nanami K, Yoshiharu T, Hiroshi Y, Miyuki M, Masayuki N, Sotila GG, Rugina S, Tuta L, Dumitru I, Cernat R, Sotila GG, Rugina S, Dumitru I, Cernat R, Rugina C, Kim IY, Lee SB, Choi BK, Son J, Lee HS, Lee N, Rhee H, Song SH, Seong EY, Kwak IS. Progression & risk factors CKD 1-5 (2). Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.47] [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: 11/13/2022] Open
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Ando M, Yanagisawa N, Ajisawa A, Tsuchiya K, Nitta K. Urinary albumin excretion within the normal range is an independent risk for near-term development of kidney disease in HIV-infected patients. Nephrol Dial Transplant 2011; 26:3923-9. [DOI: 10.1093/ndt/gfr129] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Abe S, Rhee S, Iwanuma O, Hiroki E, Yanagisawa N, Sakiyama K, Ide Y. Effect of Mechanical Stretching on Expressions of Muscle Specific Transcription Factors MyoD, Myf-5, Myogenin and MRF4 in Proliferated Myoblasts. Anat Histol Embryol 2009; 38:305-10. [DOI: 10.1111/j.1439-0264.2009.00945.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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Honda A, Abe S, Hiroki E, Honda H, Iwanuma O, Yanagisawa N, Ide Y. Activation of caspase 3, 9, 12, and Bax in masseter muscle of mdx mice during necrosis. J Muscle Res Cell Motil 2007; 28:243-7. [PMID: 17952618 DOI: 10.1007/s10974-007-9122-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2007] [Accepted: 10/04/2007] [Indexed: 11/28/2022]
Abstract
The mdx mouse, a model of muscular dystrophy, lacks dystrophin, a cell membrane protein. It is known that the lack of dystrophin causes muscle fiber necrosis from 2 weeks after birth, and the majority of necrotic muscle fibers are replaced by regenerated muscle fibers by 4 weeks after birth. A recent study indicated the possibility that mitochondria-mediated intracellular stress, a phenomenon similar to apoptosis, may be produced during muscle fiber necrosis, but did not analyze endoplasmic reticulum-mediated intracellular stress. Therefore, we examined the expression of the caspase-12 gene involved in the endoplasmic reticulum stress pathway and the Bax, caspase-9, and caspase-3 genes involved in the mitochondrial stress pathway in the mdx masseter muscle. We found over-expression of caspase-12 in cells at 2-3 weeks after birth when muscle fiber necrosis was not prominent. This suggests that stress occurs in the endoplasmic reticulum to maintain cell morphology in the absence of dystrophin. In addition, Bax was abundantly expressed in the mdx masseter muscle at 3 weeks after birth, and the expression of caspase-9 and -3 was prominent at 3-4 weeks after birth when necrosis and regeneration were marked. These results indicate that endoplasmic reticulum and mitochondrial stresses are produced during necrosis of the mdx masseter muscle, and suggest that these events are a phenomenon similar to apoptosis.
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Affiliation(s)
- A Honda
- Department of Anatomy, Tokyo Dental College, 1-2-2 Masago, Chiba-City 261-8502, Japan
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Xiao JZ, Kondo S, Yanagisawa N, Takahashi N, Odamaki T, Iwabuchi N, Miyaji K, Iwatsuki K, Togashi H, Enomoto K, Enomoto T. Probiotics in the treatment of Japanese cedar pollinosis: a double-blind placebo-controlled trial. Clin Exp Allergy 2007; 36:1425-35. [PMID: 17083353 DOI: 10.1111/j.1365-2222.2006.02575.x] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Probiotic bacteria may be effective in the treatment of allergic inflammation and food allergy, but efficacy and underlying mechanisms remain unclear. OBJECTIVE The present study investigated the effects of probiotic strain Bifidobacterium longum BB536 in the treatment of Japanese cedar pollinosis (JCPsis). METHODS In a randomized, double-blind, placebo-controlled trial, 44 JCPsis subjects received BB536 or placebo for 13 weeks during the pollen season. Subjective symptoms and self-care measures were recorded daily and blood samples were taken before and during intervention to measure blood levels of parameters related to JCPsis. RESULTS BB536 intake was associated with a significant reduction in number of subjects prematurely terminated due to severe symptoms and pollinosis medication (P=0.0057 vs. placebo group). Comparison of subjective symptom scores indicated significant decreases in rhinorrhea, nasal blockage and composite scores in the BB536 group compared with the placebo group. Comparison of medical scores showed marked improvements in all symptoms on BB536 intake. A T-helper type 2 (Th2)-skewed immune response occurring along with pollen dispersion was observed. BB536 significantly suppressed increases in plasma thymus- and activation-regulated chemokine and tended to suppress elevations of Japanese cedar pollen (JCP)-specific IgE. CONCLUSION These results suggest the efficacy of BB536 in relieving JCPsis symptoms, probably through the modulation of Th2-skewed immune response.
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Affiliation(s)
- J-Z Xiao
- Food Research and Development Laboratory, Morinaga Milk Industry Co Ltd, Zama, Japan.
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Abstract
Two terrorist attacks with the nerve agent Sarin affected citizens in Matsumoto and Tokyo, Japan in 1994 and 1995, killing 19 and injuring more the 6000. Sarin, a very potent organophosphate nerve agent, inhibits acetylcholinesterase (AchE) activity within the central, peripheral, and autonomic nervous systems. Acute and long-term Sarin effects upon humans were well documented in these two events. Sarin gas inhalation caused instantaneous death by respiratory arrest in 4 victims in Matsumoto. In Tokyo, two died in station yards and another ten victims died in hospitals within a few hours to 3 months after poisoning. Six victims with serum ChE below 20% of the lowest normal were resuscitated from cardiopulmonary arrest (CPA) or coma with generalized convulsion. Five recovered completely and one remained in vegetative state due to anoxic brain damage. EEG abnormalities persisted for up to 5 years. Miosis and copious secretions from the respiratory and GI tracts (muscarinic effects) were common in severely to slightly affected victims. Weakness and twitches of muscles (nicotinic effects) appeared in severely affected victims. Neuropathy and ataxia were observed in small number (less than 10%) of victims, which findings disappeared between 3 days and 3 months. Leukocytosis and high serum CK levels were common. Hyperglycemia, ketonuria, low serum triglyceride, hypopotassemia were observed in severely affected victims, which abnormalities were attributed to damage of the adrenal medulla. Oximes, atropine sulphate, diazepam and ample intravenous infusion were effective treatments. Pralidoxime iodide IV reversed cholinesterase and symptoms quickly even if administered 6 h after exposure. Post Traumatic Stress Disorder (PTSD) was less than 8% after 5 years. However, psychological symptoms continue in victims of both incidents. In summary, both potent toxicity and quick recovery from critical ill conditions were prominent features. Conventional therapies proved effective in Sarin incidents in Japan.
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Affiliation(s)
- N Yanagisawa
- Kanto Rosai Hospital, 1-1, Kizukisumiyoshicho, Nakahara-ku, Kawasaki, 211-8510, Japan.
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Abstract
OBJECTIVE To examine the modulation of non-reciprocal group I (Ib) inhibition during tonic contraction of antagonist muscles in patients with spasticity vs normal subjects. METHODS The authors studied 10 patients with spastic paraplegia due to cervical compression myelopathy and 16 age-matched normal subjects. Ib inhibition to soleus motoneurons was recorded as the change in size of the H-reflex of the soleus, evoked by conditioning stimulus to the nerve innervating the medial gastrocnemius muscle. The extent of inhibition was studied at rest and during tonic contraction of the pretibial muscles of variable strength. RESULTS In the resting state, the extent of inhibition in the patients did not differ from normal controls. During antagonist contraction, the extent of inhibition increased both in the normal subjects and patients. The increment was smaller in the patients, especially in those with severe spastic gait. The smaller increment in the inhibition was correlated with the time required to walk 10 m in the patients. CONCLUSION The authors observed a lack of modulation of Ib inhibition during tonic antagonist contraction in patients with spasticity, especially those with gait disturbance. Disturbed central modulation of non-reciprocal (Ib) interneurons may be responsible for spasticity.
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Affiliation(s)
- H Morita
- Department of Medicine, Shinshu University School of Medicine, Japan.
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Affiliation(s)
- A Ljungh
- Division of Bacteriology, Department Laboratory Medicine, Lund University, Sweden.
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Xiao JZ, Kondo S, Yanagisawa N, Takahashi N, Odamaki T, Iwabuchi N, Iwatsuki K, Kokubo S, Togashi H, Enomoto K, Enomoto T. Effect of probiotic Bifidobacterium longum BB536 [corrected] in relieving clinical symptoms and modulating plasma cytokine levels of Japanese cedar pollinosis during the pollen season. A randomized double-blind, placebo-controlled trial. J Investig Allergol Clin Immunol 2006; 16:86-93. [PMID: 16689181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023] Open
Abstract
Probiotic microorganisms have been shown to be effective in the treatment of allergic inflammation and food allergy, but their efficacy remains controversial. This study tested the effect of a yogurt supplemented with a probiotic strain Bifidobacterium longum BB536 in the treatment of Japanese cedar pollinosis (JCPsis). Forty subjects with a clinical history of JCPsis were given yoghurt either containing BB536 (BB536 yoghurt) or without BB536 (placebo yoghurt) at 2 X 100 g per day for 14 weeks, in a randomized, double-blind, placebo-controlled trial. Subjective symptoms and self-care measures were recorded daily and blood samples were taken before and during the intervention (at weeks 4, 9, and 14) to measure the blood parameter levels related to JCPsis. Yoghurt supplemented with BB536 significantly alleviated eye symptoms compared with placebo yoghurt (odds ratio 0.31; 95% confidence interval 0.10-0.97; p = 0.044). Although no statistically significant differences were detected, nasal symptoms such as itching, rhinorrhea, and blockage, as well as throat symptoms tended to be relieved with the BB536 yoghurt. BB536 tended to suppress the decreasing blood levels of interferon-gamma (IFN-y) and the increasing blood eosinophil rates; a significantly higher IFN-gamma level was observed for the difference from baseline at week 4. A decreased trend in the difference from baseline levels of JCP-specific IgE levels was also observed at week 4 in the BB536 group compared with the placebo group. In conclusion, these results suggest that intake of BB536-supplemented yoghurt may relieve JCPsis symptoms, probably through a modulating effect on Th balance.
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Affiliation(s)
- J Z Xiao
- Food Research and Development Laboratory, Morinaga Milk Industry Co., Ltd., Zama, Japan.
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Affiliation(s)
- T Hashimoto
- Third Department of Medicine (Neurology), Shinshu University School of Medicine, Matsumoto, Japan.
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Sato M, Kogure T, Yanagisawa N, Haizuka H, Nakashima Y. Serum soluble Fas levels and coronary artery disease in hemodialysis patients. Clin Nephrol 2003; 59:480. [PMID: 12834183 DOI: 10.5414/cnp59480] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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25
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Abe Y, Kachi T, Kato T, Arahata Y, Yamada T, Washimi Y, Iwai K, Ito K, Yanagisawa N, Sobue G. Occipital hypoperfusion in Parkinson's disease without dementia: correlation to impaired cortical visual processing. J Neurol Neurosurg Psychiatry 2003; 74:419-22. [PMID: 12640053 PMCID: PMC1738406 DOI: 10.1136/jnnp.74.4.419] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.5] [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 The purpose of this study was to analyse changes in regional cerebral blood flow (rCBF) in Parkinson's disease (PD) without dementia. METHODS Twenty eight non-demented patients with PD and 17 age matched normal subjects underwent single photon emission computed tomography with N-isopropyl-p-[(123)I]iodoamphetamine to measure rCBF. The statistical parametric mapping 96 programme was used for statistical analysis. RESULTS The PD patients showed significantly reduced rCBF in the bilateral occipital and posterior parietal cortices (p<0.01, corrected for multiple comparison p<0.05), when compared with the control subjects. There was a strong positive correlation between the score of Raven's coloured progressive matrices (RCPM) and the rCBF in the right visual association area (p<0.01, corrected for multiple comparison p<0.05) among the PD patients. CONCLUSIONS This study showed occipital and posterior parietal hypoperfusion in PD patients without dementia. Furthermore, it was demonstrated that occipital hypoperfusion is likely to underlie impairment of visual cognition according to the RCPM test, which is not related to motor impairment.
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Affiliation(s)
- Y Abe
- Department of Neurology, Nagoya University School of Medicine, Nagoya, Japan.
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Matsumoto J, Yanagisawa N, Konoma T, Haizuka H, Nakashima Y, Sato M. Increased Fas antigen in uremia accelerates adhesion of mononuclear cells to endothelial and sinovial cells via stimulated hyaluronan production. Am J Kidney Dis 2001; 38:S54-7. [PMID: 11576923 DOI: 10.1053/ajkd.2001.27399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We examined influences of increased soluble Fas (sFas) and hyaluronan in uremia on apoptosis and peripheral blood mononuclear cell (MNC) adhesiveness. Synovocytes, human umbilical cord endothelial cells (HUVEC), human coronary artery smooth muscle cells (CASMC), and MNC were prepared in this study. In cultures of synovocytes, HUVEC, and CASMC, sFas or high molecular hyaluronan was added to media at medium change. After 1 day, Fas-positive cells were calculated by fluorescence-activated cell sorting. Uremic level of sFas enhanced Fas-positive cells in all cell lines (P < 0.01) not in CASMC. On the contrary, hyaluronan inhibited Fas expression in all cell lines (P < 0.05). In culture with uremic serum, Fas were induced in all cell lines. At this time, the hyaluronan levels of the supernatant were measured and hyaluronan production was estimated. In contrast to the results using sFas supplement, hyaluronan production was increased in culture with sFas and uremic sera. MNC adhesiveness was increased in synovocytes and HUVEC lines by adding hyaluronan or sFas. Higher adherent cell numbers were recognized when both sFas and hyaluronan were added to the media. A most remarkable increase in cell numbers was observed in uremic MNC suspension as compared with that of MNC from healthy subjects. In conclusion, these results indicate that increased sFas in uremia stimulates apoptosis and hyaluronan production. Both sFas and hyaluronan are responsible for accelerated MNC adhesiveness in uremia.
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Affiliation(s)
- J Matsumoto
- 4th Department of Internal Medicine, Teikyo University School of Medicine, Kawasaki City, Kanagawa, Japan.
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27
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Hashimoto T, Shindo M, Yanagisawa N. Enhanced associated movements in the contralateral limbs elicited by brisk voluntary contraction in choreic disorders. Clin Neurophysiol 2001; 112:1612-7. [PMID: 11514243 DOI: 10.1016/s1388-2457(01)00627-7] [Citation(s) in RCA: 9] [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: 11/27/2022]
Abstract
OBJECTIVES To study the deficit of inhibition of excessive motor drive generated in the central nervous system in chorea. METHODS Identical associated movements in the contralateral limb elicited by rapid hand squeezing were measured in 6 patients with Huntington's disease, 7 patients with peak-dose dyskinesia, 10 patients with Parkinson's disease, 8 patients with spinocerebellar degeneration and in 8 normal subjects. The intensity of associated movements was assessed by the EMG amplitude ratio of associated contractions to active contractions. RESULTS The associated movement ratios were larger in Huntington's disease and peak-dose dyskinesia as compared to other groups. The ratios in akinetic "off" phase were smaller than those in dyskinetic "on" phase in all peak-dose dyskinesia patients. CONCLUSIONS Enhanced associated movements support a possible common mechanism that chorea may result from failure in inhibition of phasic neural activity pathologically generated in the brain.
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Affiliation(s)
- T Hashimoto
- Third Department of Medicine (Neurology), Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
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Mikami T, Saegusa M, Mitomi H, Yanagisawa N, Ichinoe M, Okayasu I. Significant correlations of E-cadherin, catenin, and CD44 variant form expression with carcinoma cell differentiation and prognosis of extrahepatic bile duct carcinomas. Am J Clin Pathol 2001; 116:369-76. [PMID: 11554165 DOI: 10.1309/vv6d-3gah-vejm-dujt] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
To clarify the relation between alteration of expression of cell adhesion molecules and progression of extrahepatic bile duct carcinomas. 55 cases were immunohistochemically examined for E-cadherin, alpha-catenin, beta-catenin, and CD44, with additional reverse transcription-polymerase chain reaction and Southern blotting hybridization (RT-PCR/SBH) assays. Levels of E-cadherin, alpha-catenin, and beta-catenin proteins were lower in carcinomas than in normal mucosa, while CD44 variants 3 and 6 were upregulated. Well-differentiated carcinoma showed higher expression of E-cadherin and alpha-catenin than moderately to poorly differentiated types. Macroscopically papillary lesions had higher expression of E-cadherin than their nonpapillary counterparts. RT-PCR/SBH for CD44 revealed the CD44 variant form to be more prevalent in carcinoma than in normal mucosa, correlating with the immunohistochemical results, and with more exon variety. The Cox proportional hazards test identified histologic type and E-cadherin expression as prognostic factors. Among the examined molecules, E-cadherin was especially related to papillary mass formation and a good prognosis.
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Affiliation(s)
- T Mikami
- Dept of Pathology, School of Medicine, Kitasato University, 1-15-1 Kitasato, Sagamihara-si, Kanagawa, 228-8555, Japan
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29
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Ohashi Y, Tashiro K, Itoyama Y, Nakano I, Sobue G, Nakamura S, Sumino S, Yanagisawa N. [Study of functional rating scale for amyotrophic lateral sclerosis: revised ALSFRS(ALSFRS-R) Japanese version]. No To Shinkei 2001; 53:346-55. [PMID: 11360474] [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: 04/16/2023]
Abstract
Amyotrophic lateral sclerosis(ALS) is progressive, degenerative, fatal disease of the motor neuron. No efficacious therapy is available to slow the progressive loss of function, but several new approaches including neurotrophic factors, antioxidants and glutamate antagonists, are currently being evaluated as potential therapies. Mortality, and/or time to tracheostomy, muscle strength and pulmonary function are used as primary endpoints in clinical trials for treatment of ALS. The effect of new therapies on the quality of patients' lives are also important, so we sought to develop a rating scale to measure it. The revised ALS Functional Rating Scale(ALSFRS-R), which has addition of items to ALSFRS to enhance the ability to assess respiratory symptoms, is an assessment determining the degree of impairment in ALS patients' abilities to function independently in activities of daily living. It consists of 12 items to evaluate bulbar function, motor function and respiratory function and each item is scored from 0(unable) to 4(normal). We translated the English score into Japanese one with minor modification considering the inter cultural difference. And we examined reliability of the translated scale. As a measure of reliability, the intraclass correlation coefficient(ICC) was evaluated for total score and the Kappa coefficient proposed by Cohen and Kraemer was calculated for each item. Moreover, we examined sensitivity to clinical change over time and carried out the factor analysis to analyze the factorial structure. The subjects were 27 ALS patients and each was scored twice for reliability or three times for sensitivity by 2 to 5 neurologists and if possible, nurses. The ICC for total score was 0.97(95% C. I.; 0.94-0.98). Extension of the Kappa coefficients were 0.48 to 1.00 for inter-rater reliability and the averaged Kappa coefficients were 0.63 to 1.00 for intra rater reliability, respectively. Concerning the factorial structure, the contribution of the first factor(the first principal component) were 53.5% principal factor solution. The factor loadings of items were 0.52-0.91 except "salivation" and this factor almost equal to the simple sum of all items was interpreted as the general degree of deterioration. The promax votation revealed the riginally supposed factor structure with 3 factors(groups of items): neuromuscuclar function, respiratory function and bulbar function. The rating scale correlated with Global clinical impression of change(GCIC) scored by neurologists and declined with time, indicating its sensitivity to change. On the bases of these results, ALSFRS-R(Japanese version) is considered to be highly reliable enough for clinical use.
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Affiliation(s)
- Y Ohashi
- School of Health Sciences and Nursing, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
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Abstract
BACKGROUND Recent studies have suggested a correlation between increased or decreased expression of CD44 variant molecules and tumor metastasis. CD44 expression in gallbladder carcinoma was examined and compared with tumor differentiation. METHODS Eighty-three samples of gallbladder carcinoma, 17 gallbladder adenoma samples, and 66 normal control mucosa samples were stained immunohistochemically for CD44 standard form (CD44s), variant 3 (CD44v3), and variant 6 (CD44v6). RNA extracted from nine patients with carcinoma also was investigated with reverse transcriptase-polymerase chain reaction (RT-PCR) analysis and Southern blot hybridization (SBH) for the CD44 gene. RESULTS Normal gallbladder mucosa showed strong, membranous staining for CD44s but not for CD44v3 or CD44v6. In gallbladder tumors, CD44s was stained as strongly as it was in normal mucosa, but immunoreactivity for CD44v3 and CD44v6 also was significant. In well differentiated, advanced adenocarcinomas (n = 38), CD44s immunoreactivity was significantly lower in the invasive component than in the intramucosal component of the tumors (P = 0.0048). Immunoreactivity for CD44v3 and CD44v6 in moderately and poorly differentiated areas was significantly higher than in well differentiated areas (P < 0.0001 and P = 0.0378, respectively). RT-PCR and SBH signals for CD44v3 and CD44v6, including exons 7 and 10, were strong in carcinoma samples but weak in normal samples, in line with the results of immunohistochemistry. The prognosis of patients with gallbladder carcinoma was not associated significantly with altered expression of CD44s, CD44v3, or CD44v6. CONCLUSIONS The current study demonstrated that CD44 variant overexpression in patients with gallbladder carcinoma was linked closely with histologic dedifferentiation rather than clinicopathologic factors, including prognosis.
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Affiliation(s)
- N Yanagisawa
- Department of Pathology, Kitasato University School of Medicine, Kanagawa, Japan
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Abstract
BACKGROUND Recent studies have suggested a correlation between increased or decreased expression of CD44 variant molecules and tumor metastasis. CD44 expression in gallbladder carcinoma was examined and compared with tumor differentiation. METHODS Eighty-three samples of gallbladder carcinoma, 17 gallbladder adenoma samples, and 66 normal control mucosa samples were stained immunohistochemically for CD44 standard form (CD44s), variant 3 (CD44v3), and variant 6 (CD44v6). RNA extracted from nine patients with carcinoma also was investigated with reverse transcriptase-polymerase chain reaction (RT-PCR) analysis and Southern blot hybridization (SBH) for the CD44 gene. RESULTS Normal gallbladder mucosa showed strong, membranous staining for CD44s but not for CD44v3 or CD44v6. In gallbladder tumors, CD44s was stained as strongly as it was in normal mucosa, but immunoreactivity for CD44v3 and CD44v6 also was significant. In well differentiated, advanced adenocarcinomas (n = 38), CD44s immunoreactivity was significantly lower in the invasive component than in the intramucosal component of the tumors (P = 0.0048). Immunoreactivity for CD44v3 and CD44v6 in moderately and poorly differentiated areas was significantly higher than in well differentiated areas (P < 0.0001 and P = 0.0378, respectively). RT-PCR and SBH signals for CD44v3 and CD44v6, including exons 7 and 10, were strong in carcinoma samples but weak in normal samples, in line with the results of immunohistochemistry. The prognosis of patients with gallbladder carcinoma was not associated significantly with altered expression of CD44s, CD44v3, or CD44v6. CONCLUSIONS The current study demonstrated that CD44 variant overexpression in patients with gallbladder carcinoma was linked closely with histologic dedifferentiation rather than clinicopathologic factors, including prognosis.
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Affiliation(s)
- N Yanagisawa
- Department of Pathology, Kitasato University School of Medicine, Kanagawa, Japan
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Yanagisawa N, Mikami T, Saegusa M, Okayasu I. More frequent beta-catenin exon 3 mutations in gallbladder adenomas than in carcinomas indicate different lineages. Cancer Res 2001; 61:19-22. [PMID: 11196159] [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: 02/19/2023]
Abstract
To clarify the contribution of beta-catenin, which is related to cell adhesion and intranuclear transcription, to gallbladder carcinogenesis, we investigated its expression using immunohistochemistry, and beta-catenin exon 3 mutations by DNA direct sequencing, in 18 gallbladder adenomas and 82 adenocarcinomas. Membranous expression was significantly lower in moderately and poorly differentiated than in well-differentiated adenocarcinoma cases (P < 0.001). The gallbladder adenomas showed significantly stronger expression in the cytoplasm and the nucleus than carcinomas (P < 0.05 and P < 0.001, respectively), and exon 3 mutations were observed in 62.5% (10 of 16) of adenomas, but only 4.8% (1 of 21) of carcinomas. With beta-catenin as a molecular marker, the adenoma-carcinoma sequence can be considered to be a minor pathway in gallbladder carcinogenesis.
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Affiliation(s)
- N Yanagisawa
- Department of Pathology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
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Yanagisawa N, Hayashi R, Mitoma H. Pathophysiology of frozen gait in Parkinsonism. Adv Neurol 2001; 87:199-207. [PMID: 11347223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Affiliation(s)
- N Yanagisawa
- Chubu National Hospital, National Institute for Longevity Sciences, Morioka, Obu-shi, Aichi 474-8511, Japan
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Yanagisawa N. [A challenge to conquest of neurological diseases]. Rinsho Shinkeigaku 2000; 40:1177-83. [PMID: 11464451] [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: 02/20/2023]
Abstract
For the last three decades, neurology has witnessed remarkable progress in both basic sciences and clinical researches. They include detection of abnormal genes in common degenerative and metabolic diseases, clarification of brain mechanisms of movement and cognition with neurophysiology including unit recording from basal ganglia neurons, neuroimaging and neuropsychology tests. Treatment of intractable chronic diseases has also progressed. Medical, surgical and immunosuppressive treatment for Parkinson's disease, immunological diseases, and for certain metabolic diseases are examples. Neurologists in Japan contributed in research progress in the various fields. However, services in clinical medicine have devoted mainly in neurodegenerative, immunological diseases and myopathy. Promotion of nationwide clinical service for cerebrovascular disease, epilepsy and dementia is required. Research in neurology in the next century should be promoted in various fields with different methodology and targets; genes, molecular mechanisms, cellular activity, neural networks, brain as a whole and a human subject. Particularly integrated function of he brain shall be studied thoroughly not only from biological but also from psychological and social point of view. Leaders in neurology in Japan, particularly professors of neurology have been asked to chair all the activities of education, research and clinics. Merits of this system were reflected in connection of clinical and research data, resulting in establishment of new disease showing unusual combination of symptoms and signs. In future, coordination among specialists in different fields are required for further promotion of clinical researches and training of neurologists. Qualified neurological services in ordinary clinics can be achieved with cooperation of personnels in a team where neurologists are required to play a key role aiming at assurance of best QOL for patients and families.
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Affiliation(s)
- N Yanagisawa
- Chubu National Hospital, National Institute for Longevity Sciences
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Chikaraishi T, Iwamoto T, Hoshino T, Makizumi K, Yanagisawa N, Furuhata S, Sasaki H, Kato K, Inoue M. Autologous blood transfusion for kidney transplant recipients. Transplant Proc 2000; 32:1853-4. [PMID: 11119969 DOI: 10.1016/s0041-1345(00)01462-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T Chikaraishi
- Department of Urology, St Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
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Sekijima Y, Ikeda S, Tokuda T, Satoh S, Hidaka H, Hidaka E, Ishikawa M, Yanagisawa N. Prevalence of dementia of Alzheimer type and apolipoprotein E phenotypes in aged patients with Down's syndrome. Eur Neurol 2000; 39:234-7. [PMID: 9635475 DOI: 10.1159/000007940] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We investigated the exact prevalence of dementia of Alzheimer type (DAT) and apolipoprotein E (ApoE) phenotypes in 106 Japanese Down's syndrome (DS) patients. Among these patients 16 were diagnosed as having DAT. The prevalence of DAT was 0% in the 30- to 39-year-old group, 16% in the 40- to 49-year-old group, and 38% in those over 50 years old. The frequency of the epsilon4 allele in DS patients with DAT was 18.8%, which was considerably higher than that of nondemented DS patients (4.5%) and Japanese nondemented controls (6.7%). Especially, the frequency of the epsilon4 allele in DS patients who developed DAT under 50 years was significantly higher (28.6%). DS patients certainly develop DAT at earlier ages but the prevalence of DAT in each group of patients was lower than previously recognized. It is very likely that the ApoE epsilon4 is a risk factor for DAT even in DS patients with a genetic predisposition to Alzheimer's disease.
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Affiliation(s)
- Y Sekijima
- Department of Medicine (Neurology), Shinshu University School of Medicine, Asahi, Matsumoto, Japan
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37
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Yanagisawa N. [A prospect of treatment for Parkinson's disease in the 21st century]. Nihon Rinsho 2000; 58:1968-74. [PMID: 11068433] [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: 02/18/2023]
Abstract
During the last half of the 20th century, medical treatment for Parkinson's disease (PD) showed remarkable progresses, resulting in marked prolongation of life and self-dependency of patients. In Japan, peak of ages of PD patients visiting all medical institutions was between 75 and 84 years of age(1993), with which course of illness is predicted to exceed twenty years in a large number of patients. As exploration of neuroprotective therapies for PD has not been successful yet, continuous progress in neuronal cell death in the substantia nigra result in loss of efficacy of medication, motor fluctuations and CNS side effects such as dyskinesia and psychosis in the long course of dopaminergic supplementation therapies. Future development of medical therapies for PD is expected in different ways. First, elaboration in controlled-release of DCI/levodopa, utilization of dopamine(DA) receptor agonists with different profiles in affinity to DA receptor subtypes and half-time of blood concentration, and utilization of COMT inhibitors. Second, neuroprotection with MAO-B inbitators or DA receptor agonists. Neuroprotective function is expected in animal studies for these substances but clinical usefulness should be verified with randomised controlled trials. Third, treatment for extra-motor symptoms such as dementia, cognitive disorders, depression, autonomic disturbances such as orthortatic hypotension and bladder disturbances, which is essential for maintenance of quality of life of patients with long course of illness. Gene therapy, neuroprotection before development of symptoms in PD may be attained within the first few decades of the next century. In this respect, establishment of preclinical diagnosis with neuroimaging and sensitive motor and psychological tests is imperative.
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Affiliation(s)
- N Yanagisawa
- Chubu National Hospital, National Institute for Longevity Sciences
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Mikami T, Mitomi H, Hara A, Yanagisawa N, Yoshida T, Tsuruta O, Okayasu I. Decreased expression of CD44, alpha-catenin, and deleted colon carcinoma and altered expression of beta-catenin in ulcerative colitis-associated dysplasia and carcinoma, as compared with sporadic colon neoplasms. Cancer 2000. [PMID: 10951334 DOI: 10.1002/1097-0142(20000815)89:4<733::aid-cncr3>3.0.co;2-#] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND To clarify the cell adhesion status in ulcerative colitis (UC)-associated colon neoplasm, expression of cell adhesion molecules were investigated and compared with that of sporadic colon neoplasm. METHODS A total of 14 low grade dysplasias, 16 high grade dysplasias, and 8 adenocarcinomas associated with UC and 17 sporadic adenomas with mild to moderate dysplasia, 22 adenomas with severe dysplasia, and 15 invasive adenocarcinomas were immunohistochemically examined using monoclonal antibodies against CD44, E-cadherin, alpha- and beta-catenin, and deleted colon carcinoma (DCC). RESULTS CD44, especially its standard form, and DCC expression was stronger in the sporadic colon neoplasms than in the UC-associated lesions. Although E-cadherin did not show significant differences between the two cases, alpha-catenin was more expressed in sporadic colon adenomas with severe dysplasia and carcinomas than in their UC-associated counterparts. Membranous beta-catenin staining was stronger in UC-associated neoplasms, whereas sporadic lesions had greater cytoplasmic and nuclear expression. CONCLUSIONS The differences in cell adhesion molecule expression suggests that UC-associated and sporadic colon neoplasms arise from different pathways of tumorigenesis.
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Affiliation(s)
- T Mikami
- Department of Pathology, School of Medicine, Kitasato University, Sagamihara, Japan
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Abstract
PURPOSE Heteronymous Ia facilitation from the quadriceps to the soleus was studied to clarify central motor control through presynaptic inhibition (PSI) on Ia terminals of spinal motoneurons in Parkinson's disease. METHODS 17 patients with Parkinson's disease and 36 control subjects participated in the study. Because the early part of facilitation reflects the degree of PSI, the extent of facilitation was quantified as the slope, within 0.8 msec of onset. RESULTS Heteronymous Ia facilitation in the patients was greater than in the age-matched control participants. PSI was negatively correlated with the walking speed of the patients. In the patients examined twice, lessening of bradykinesia was correlated to a decrease in PSI but not lessening of rigidity. CONCLUSION These findings indicate that the degree of PSI is decreased and disturbance of the central control of PSI may relate to gait disturbance in Parkinson's disease.
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Affiliation(s)
- H Morita
- The Third Department of Internal Medicine, Shinshu University School of Medicine, Matsumoto, Japan
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40
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Mikami T, Mitomi H, Hara A, Yanagisawa N, Yoshida T, Tsuruta O, Okayasu I. Decreased expression of CD44, alpha-catenin, and deleted colon carcinoma and altered expression of beta-catenin in ulcerative colitis-associated dysplasia and carcinoma, as compared with sporadic colon neoplasms. Cancer 2000; 89:733-40. [PMID: 10951334 DOI: 10.1002/1097-0142(20000815)89:4<733::aid-cncr3>3.0.co;2-#] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND To clarify the cell adhesion status in ulcerative colitis (UC)-associated colon neoplasm, expression of cell adhesion molecules were investigated and compared with that of sporadic colon neoplasm. METHODS A total of 14 low grade dysplasias, 16 high grade dysplasias, and 8 adenocarcinomas associated with UC and 17 sporadic adenomas with mild to moderate dysplasia, 22 adenomas with severe dysplasia, and 15 invasive adenocarcinomas were immunohistochemically examined using monoclonal antibodies against CD44, E-cadherin, alpha- and beta-catenin, and deleted colon carcinoma (DCC). RESULTS CD44, especially its standard form, and DCC expression was stronger in the sporadic colon neoplasms than in the UC-associated lesions. Although E-cadherin did not show significant differences between the two cases, alpha-catenin was more expressed in sporadic colon adenomas with severe dysplasia and carcinomas than in their UC-associated counterparts. Membranous beta-catenin staining was stronger in UC-associated neoplasms, whereas sporadic lesions had greater cytoplasmic and nuclear expression. CONCLUSIONS The differences in cell adhesion molecule expression suggests that UC-associated and sporadic colon neoplasms arise from different pathways of tumorigenesis.
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Affiliation(s)
- T Mikami
- Department of Pathology, School of Medicine, Kitasato University, Sagamihara, Japan
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41
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Mitoma H, Hayashi R, Yanagisawa N, Tsukagoshi H. Gait disturbances in patients with pontine medial tegmental lesions: clinical characteristics and gait analysis. Arch Neurol 2000; 57:1048-57. [PMID: 10891989 DOI: 10.1001/archneur.57.7.1048] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To determine the clinical characteristics of gait disorders in patients with pontine medial tegmental lesions. DESIGN We compared features of gait disorders between patients with infarcts in the medial tegmentum and those with stroke in other areas of the pons (pathological control subjects) by measuring electromyographic results of lower limb muscles and several biomechanical parameters. PATIENTS Two patients with infarcts in the rostral medial tegmentum and 4 control subjects. Two of the control patients had lesions in the pontine base, while the lesions in the other 2 were in the pontine tegmentum and base (combined lesions). RESULTS Patients with rostral medial tegmental lesions and controls with pontine base lesions showed unstable walking characterized by irregular angular displacements and foot pressures. However, they differed by the following 3 features. (1) Rostral medial tegmental lesions elicited truncal ataxia without limb ataxia. In comparison, pontine base lesions elicited limb ataxia without truncal ataxia and caused hemiparesis. (2) Instability was more severe and persistent in patients with the former lesions than in those with the latter lesions. Slowness of walking speed and prolongation of the double-support period were clearly observed in the former group. (3) Electromyographic changes characteristic of cerebellar ataxia were clearly evident in patients with rostral medial tegmental lesions. The electromyographic amplitudes of the gastrocnemius and tibialis anterior muscles were almost constant throughout the gait cycle, resulting in the disappearance of the inherent periodic pattern of each muscle. CONCLUSION Medial tegmental lesions in the rostral pons cause prolonged and severe unstable walking that resembles spinocerebellar ataxic pattern, and impairment of the spinocerebellar loop might be the pathomechanism underlying such a gait disturbance.
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Affiliation(s)
- H Mitoma
- Mitoma Neurological Clinic, 1-2-10 Minami-Ikebukuro, Toshima-ku, Tokyo 171-0022, Japan
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Sato M, Konuma T, Yanagisawa N, Haizuka H, Asakura H, Nakashima Y. Fas-Fas ligand system in the peripheral blood of patients with renal diseases. Nephron Clin Pract 2000; 85:107-13. [PMID: 10867515 DOI: 10.1159/000045642] [Citation(s) in RCA: 12] [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: 11/19/2022] Open
Abstract
To clarify the role of the Fas-Fas ligand (FasL) system in the peripheral blood from patients with various renal diseases, the Fas and FasL expression on mononuclear cells (MNCs) and serum levels of soluble Fas (sFas) and soluble FasL were investigated. Patients were selected from those with various types of glomerular diseases showing various degrees of renal function. Fas expression on MNCs was analyzed by a FACScan, sFas and soluble FasL were measured with an ELISA kit, and FasL expression on MNCs was counted using a FACScan after a bioassay. Fas-positive MNCs and sFas increased with statistical significance concomitantly with deterioration in renal function. Moreover, there was a significant correlation between them. sFas- and FasL-positive MNCs were significantly correlated with proteinuria. However, the Fas expression percentage on MNCs and/or serum levels of sFas did not correlate with the number of TUNEL-positive cells in the glomeruli. Also, there was no disease specificity in the activation of Fas. These results indicate that Fas expression on MNCs is activated in accordance with the deterioration in renal function without disease specificity, corresponding to the elevation of serum sFas levels to protect against Fas-mediated apoptosis.
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Affiliation(s)
- M Sato
- 4th Department of Internal Medicine, Teikyo University School of Medicine, Kawasaki City, Japan
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Yajima M, Baba K, Yanagisawa N, Nishida T, Yamakawa K, Takemura H, Nishida S, Iwamoto T. [Clinical study of transurethral surgery for benign prostatic hyperplasia using a thick loop (VaporTome)]. Hinyokika Kiyo 2000; 46:247-50. [PMID: 10845155] [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
From December 1996 to June 1998, we performed transurethral surgery of the prostate using a thick loop, VaporTome developed by Circon ACMI on 23 patients with symptomatic benign prostatic hyperplasia (BPH). The mean international prostate symptom score decreased significantly, from 22.6 at baseline to 9.0, 6.5, 4.9 and 5.3 at 1, 3, 6 and 12 months after operation, respectively. The mean quality of life index also decreased significantly, from 5.5 to 1.8, 1.8, 1.4 and 1.2, respectively. The mean peak flow rate increased significantly, from 6.2 preoperatively to 15.8, 17.1, 16.6 and 17.4 ml/sec at 1, 3, 6 and 12 months after operation, respectively. The mean prostate volume decreased significantly, from 66.9 to 24.8, 17.3, 19.0 and 18.2 ml. The mean residual urine decreased significantly, from 167.9 to 11.4, 9.4, 12.8 and 20.4 ml. As for overall efficacy, the rate of excellent and good cases at 1, 3, 6 and 12 months was 80.9, 89.4, 94.7 and 85.8%, respectively. No serious complications were observed. Our clinical results suggest that transurethral surgery for BPH using VaporTome has several potential advantages including high efficacy, minimal morbidity compared with standard transurethral resection of the prostate and lower cost compared with other minimally invasive procedures.
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Affiliation(s)
- M Yajima
- Department of Urology, St. Marianna University School of Medicine
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Yanagisawa N, Shindo M, Morita H. Spinal mechanisms of spasticity. Electroencephalogr Clin Neurophysiol Suppl 2000; 50:190-4. [PMID: 10689462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Affiliation(s)
- N Yanagisawa
- National Chubu Hospital, Institute for Longevity Sciences, Obu, Japan
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45
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Mitoma H, Hayashi R, Yanagisawa N, Tsukagoshi H. Characteristics of parkinsonian and ataxic gaits: a study using surface electromyograms, angular displacements and floor reaction forces. J Neurol Sci 2000; 174:22-39. [PMID: 10704977 DOI: 10.1016/s0022-510x(99)00329-9] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.8] [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: 11/16/2022]
Abstract
To clarify the characteristics of parkinsonian and ataxic gaits, we analyzed electromyograms (EMGs) of the thigh and leg muscles, angular displacements of the hip and leg joints, and floor reaction forces during free walking for each gait phase in 16 patients with Parkinson's disease (PD) and 14 ataxic patients with cerebellar degenerations. We studied 17 healthy elderly subjects whose walking speed was similar to that of patients with moderate disease. Free walking by PD patients was characterized by low maximum activity of the gastrocnemius/soleus (GC) and tibialis anterior (TA) muscles. Ataxic patients showed high activity of GC and TA during the period when these muscles were not active in normal walking. The ratio of changes of EMG of the distal muscles to changes in angular displacement of the ankle (DeltaEMG/Deltaangle) was reduced in GC of PD patients in ankle dorsiflexion, whereas it was high in GC and TA of ataxic patients in ankle dorsiflexion and plantarflexion, respectively. Changes in DeltaEMG/Deltaangle coincided with those in proprioceptive reflexes reported previously. Our results showed that measurement of EMG for each phase revealed disease-specific factors, and that of DeltaEMG/Deltaangle might be a conventional clue for estimation of reflexes for these gait disorders.
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Affiliation(s)
- H Mitoma
- Kakeyu Rehabilitation Institute, Nishiuchi 1308, Maruko-machi, Nagano, Japan
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46
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Watanabe S, Yanagisawa N. Serial position effect and selective amnesia induced by scopolamine in mice. Nihon Shinkei Seishin Yakurigaku Zasshi 2000; 20:17-20. [PMID: 10890019] [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: 02/17/2023]
Abstract
Mice were trained to run through a maze with six gates, each consisting of three doors--two locked and one unlocked. They learned to choose a correct (unlocked) door at the gates close to the beginning and end better than in the middle, showing the primacy and recency effects of serial learning. A low dose of scopolamine unexpectedly enhanced the primacy effect, while a high dose impaired learning in general. The enhancement of the primacy effect can be explained in terms of reduction of retroactive interference.
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Affiliation(s)
- S Watanabe
- Department of Psychology, Keio University
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Yanagisawa N, Mikami T, Koike M, Okayasu I. Enhanced cell kinetics, p53 accumulation and high p21WAF1 expression in chronic cholecystitis: comparison with background mucosa of gallbladder carcinomas. Histopathology 2000; 36:54-61. [PMID: 10632753 DOI: 10.1046/j.1365-2559.2000.00800.x] [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: 11/20/2022]
Abstract
AIMS Since neoplasia resulting from chronic inflammation has recently attracted increasing attention, we have investigated surgically removed gallbladders to examine the relationship between chronic cholecystitis and carcinogenesis. METHODS AND RESULTS The mucosa of 108 cholecystectomy specimens without gallbladder cancer and 54 surgically resected gallbladder carcinomas were classified into three groups according to the degree of lymphocytic infiltration, and assessed immunohistochemically for Ki67, p53, p21WAF1 and apoptosis. In gallbladder mucosa without carcinoma, all four parameters tended to increase with the inflammation score (IS). Significantly positive correlations were revealed between Ki67 and p53, Ki67 and p21WAF1, and p53 and p21WAF1. However, in gallbladder carcinoma cases, values of p53 and p21WAF1 for background mucosa were elevated as compared to the mucosa of cholecystitis with low IS, but there was no correlation between their expression and IS, except for Ki67. CONCLUSIONS Severe chronic cholecystitis is associated with acceleration of epithelial cell turnover, damaged cells being eliminated by apoptosis. The background mucosa of gallbladder carcinomas showed similar cell proliferative activity (Ki67) to that in cholecystitis, with no parallel changes of p53 and p21WAF1 expression, suggesting the possibility of unknown cofactors causing genomic damage.
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Affiliation(s)
- N Yanagisawa
- Department of Pathology, School of Medicine, Kitasato University, Kanagawa, Japan
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Abstract
PURPOSE To assess the application of topical conjugated equine estrogen for the treatment of boys with phimosis. METHODS Fifteen boys with phimosis were included in the study. Conjugated equine estrogen (Premarin) 0.1% ointment was applied on the prepuce once daily. The treatment was continued until the prepuce was fully retractable. The patient was examined each second week up to a maximum treatment of 8 weeks. Retractability and the appearance of the foreskin were graded before and after treatment. RESULTS Thirteen of 15 boys (87%) referred with phimosis were successfully treated with conjugated equine estrogen ointment. An adverse effect of gynecomastia was seen in one boy (7%). CONCLUSION Conjugated equine estrogen ointment application for phimosis may be an alternative to surgery.
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Affiliation(s)
- N Yanagisawa
- Department of Urology, St Marianna University School of Medicine, Kanagawa, Japan
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Abstract
In order to clarify the later sequelae of sarin poisoning that occurred in Matsumoto City, Japan, on June 27, 1994, a cohort study was conducted on all persons (2052 Japanese people) inhabiting an area 1050 meters from north to south and 850 meters from east to west with the sarin release site in the center. Respondents numbered 1237 and 836 people when surveys were conducted at one and three years after the sarin incident, respectively. Numbers of persons with symptoms of sarin toxicity were compared between sarin victims and non-victims. Of the respondents, 58 and 46 people had symptoms associated with sarin such as fatigue, asthenia, shoulder stiffness, asthenopia and blurred vision at both points of the survey, respectively. The prevalences were low; some complained of insomnia, had bad dreams, difficulty in smoking, husky voice, slight fever and palpitation. The victims who had symptoms one year after the incident had a lower erythrocyte cholinesterase activity than did those who did not have symptoms at the early stage; such persons lived in an area with a 500 meter long axis north east from the sarin release site. The three-year cohort study clearly showed that the odds ratios of almost all of the symptoms were high in the sarin-exposed group, suggesting a positive relationship between symptoms and grades of exposure to sarin. These results suggest that symptoms reported by many victims of the sarin incident are thought to be sequelae related to sarin exposure.
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Affiliation(s)
- T Nakajima
- Department of Hygiene, Shinshu University School of Medicine, Nagano, Japan
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50
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Yajima M, Takemura H, Nishida S, Matsushita T, Yanagisawa N, Baba K, Iwamoto T. [Clinical study of transurethral electrovaporization of the prostate for benign prostatic hyperplasia]. Hinyokika Kiyo 1999; 45:609-12. [PMID: 10540705] [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: 02/14/2023]
Abstract
We report our clinical experience of transurethral electrovaporization of the prostate (TUVP) for benign prostatic hyperplasia (BPH) using VaporTrode developed by Circon ACMI. From April to November 1995, we treated 22 patients with symptomatic BPH with TUVP. The mean I-PSS decreased significantly, from 21.8 at baseline to 8.1, 4.5, 4.3 and 5.4 at 1, 3, 6 and 12 months after operation, respectively. The mean QOL index also decreased significantly, from 5.2 to 1.5, 1.0, 1.3 and 1.3. The mean peak flow rate increased significantly, from 9.0 preoperatively to 17.4, 17.7, 20.8 and 16.5 ml/sec at 1, 3, 6 and 12 months after TUVP, respectively. The mean prostate volume decreased significantly, from 41.5 to 22.9, 18.6, 18.8 and 19.9 ml. The mean residual urine decreased significantly, from 90.0 to 17.6, 20.6, 24.1 and 9.4 ml. As for overall efficacy, the rate of excellent and good cases at 1, 3, 6 and 12 months was 77.3, 95.5, 95.0 and 84.2%, respectively. No serious complications were observed. Our clinical results suggest that TUVP using VaporTrode has several potential advantages including good efficacy, minimal morbidity and lower cost compared with other less invasive procedures, and may become the useful way of surgical treatment for BPH.
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Affiliation(s)
- M Yajima
- Department of Urology, St. Marianna University School of Medicine
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