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Becker HJ, Ishida R, Wilkinson AC, Kimura T, Lee MSJ, Coban C, Ota Y, Tanaka Y, Roskamp M, Sano T, Tojo A, Kent DG, Yamazaki S. Controlling genetic heterogeneity in gene-edited hematopoietic stem cells by single-cell expansion. Cell Stem Cell 2023; 30:987-1000.e8. [PMID: 37385251 PMCID: PMC10338855 DOI: 10.1016/j.stem.2023.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/21/2023] [Accepted: 06/06/2023] [Indexed: 07/01/2023]
Abstract
Gene editing using engineered nucleases frequently produces unintended genetic lesions in hematopoietic stem cells (HSCs). Gene-edited HSC cultures thus contain heterogeneous populations, the majority of which either do not carry the desired edit or harbor unwanted mutations. In consequence, transplanting edited HSCs carries the risks of suboptimal efficiency and of unwanted mutations in the graft. Here, we present an approach for expanding gene-edited HSCs at clonal density, allowing for genetic profiling of individual clones before transplantation. We achieved this by developing a defined, polymer-based expansion system and identifying long-term expanding clones within the CD201+CD150+CD48-c-Kit+Sca-1+Lin- population of precultured HSCs. Using the Prkdcscid immunodeficiency model, we demonstrate that we can expand and profile edited HSC clones to check for desired and unintended modifications, including large deletions. Transplantation of Prkdc-corrected HSCs rescued the immunodeficient phenotype. Our ex vivo manipulation platform establishes a paradigm to control genetic heterogeneity in HSC gene editing and therapy.
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Affiliation(s)
- Hans Jiro Becker
- Laboratory for Stem Cell Therapy, Faculty of Medicine, Tsukuba University, Tsukuba 305-8577, Japan; Division of Stem Cell Biology, Center for Stem Cell Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.
| | - Reiko Ishida
- Division of Stem Cell Biology, Center for Stem Cell Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Adam C Wilkinson
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Takaharu Kimura
- Laboratory for Stem Cell Therapy, Faculty of Medicine, Tsukuba University, Tsukuba 305-8577, Japan
| | - Michelle Sue Jann Lee
- Division of Malaria Immunology and International Vaccine Design Center, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Cevayir Coban
- Division of Malaria Immunology and International Vaccine Design Center, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Yasunori Ota
- Department of Pathology, Research Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Yosuke Tanaka
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto City 860-0811, Japan
| | - Meike Roskamp
- Pharma Solutions, Nutrition & Health, BASF SE, Carl-Bosch-Strasse 38, 67056 Ludwigshafen am Rhein, Germany
| | - Tsubasa Sano
- Pharma Solutions, Nutrition & Health, BASF Japan Ltd, Tokyo 103-0022, Japan
| | - Arinobu Tojo
- Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - David G Kent
- York Biomedical Research Institute, Department of Biology, University of York, Wentworth Way, York YO10 5DD, UK
| | - Satoshi Yamazaki
- Laboratory for Stem Cell Therapy, Faculty of Medicine, Tsukuba University, Tsukuba 305-8577, Japan; Division of Stem Cell Biology, Center for Stem Cell Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.
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Tanabe H, Nakamura S, Kawashima M, Ishida R, Kaido M, Mizuno M, Sato EA, Inoue S, Ayaki M, Tsubota K. A Novel Lid Hygiene Detergent Successfully Eliminated Demodex Mites, a Common Pathogen of Refractory Obstructive Meibomian Gland Dysfunction. J Oleo Sci 2021; 70:799-805. [PMID: 33967173 DOI: 10.5650/jos.ess20365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Demodex mites are microscopic arthropods that have been shown to be responsible for chronic blepharitis. Although many reports have demonstrated positive effects of lid hygiene on demodicosis, some have produced conflicting results. We retrospectively evaluated the effect of lid margin cleansing with a novel lid hygiene detergent, Eye Shampoo, in patients with ocular demodicosis. METHODS Outpatient clinic notes recorded over a 24-month period between June 30, 2016, and June 29, 2018, at Keio University Hospital in Japan were reviewed to identify patients diagnosed with ocular demodicosis who started cleansing their lid margins with Eye Shampoo at least once daily as a lid hygiene therapy. RESULTS Five patients diagnosed with ocular demodicosis who started cleansing their lid margins using Eye Shampoo for lid hygiene were identified. In four cases, Demodex mites were successfully eliminated, and ocular conditions were ultimately improved with no recurrence. Active Demodex mites were still noted after 3 months of lid hygiene therapy in one case; further observation of this case was not available. There were no adverse effects of Eye Shampoo in any of these cases. CONCLUSION Lid hygiene therapy using Eye Shampoo successfully eliminated Demodex mites, a common pathogen of refractory obstructive meibomian gland dysfunction.
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Affiliation(s)
- Hirotaka Tanabe
- Department of Ophthalmology, Keio University School of Medicine.,Department of Ophthalmology, Tsukazaki Hospital
| | | | | | - Reiko Ishida
- Department of Ophthalmology, Keio University School of Medicine
| | - Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine
| | - Miki Mizuno
- Department of Ophthalmology, Keio University School of Medicine
| | - Enrique A Sato
- Department of Ophthalmology, Keio University School of Medicine
| | - Sachiko Inoue
- Department of Ophthalmology, Keio University School of Medicine
| | - Masahiko Ayaki
- Department of Ophthalmology, Keio University School of Medicine
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine.,Tsubota Laboratory, Inc
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3
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Kaido M, Inoue S, Kawashima M, Ishida R, Nakamura S, Tsubota K. Role of transient receptor potential melastatin 8 activity in menthol-induced cold sensitivity and its qualitative perception in dry eye. Ocul Surf 2020; 19:307-312. [PMID: 33127598 DOI: 10.1016/j.jtos.2020.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 10/21/2020] [Accepted: 10/25/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE To evaluate the role of transient receptor potential melastatin 8 (TRPM8) activity in menthol-induced cold sensitivity and its qualitative perception in patients with dry eye (DE). METHODS This prospective, cross-sectional, comparative study included 52 eyes of 52 subjects (mean age: 66.8 ± 9.2 years; range: 44-86) with a tear break-up time (TBUT) of ≤5 s. The participants were classified into three groups: 17 patients with DE symptoms and keratoconjunctival (KC) staining scores of ≥3 points (positive KC-DE group), 18 patients with DE symptoms and KC staining scores of <3 points (negative KC-DE group), and 17 individuals with KC staining scores of <3 points and no symptoms (non-DE control group). The menthol-induced cool sensation (M-cool) and TBUT were measured after administration of 2 μl of 1.0 mM menthol eye drops. Furthermore, participants answered a questionnaire regarding their stimulus perception (pleasant, unpleasant, or neither). RESULTS M-cool values were similar in the three groups. TBUT significantly increased in the negative KC-DE and control groups (P < 0.05) and remained unchanged in the positive KC-DE group (P > 0.05) after menthol administration. DE patients reported the sensation as pleasant or unpleasant, whereas most control participants were indifferent (P < 0.05). CONCLUSIONS While M-cold sensitivity was similar in DE and control groups, its qualitative perception differed between these groups. Thus, TRPM8 activation at the peripheral level alone may not be sufficient to account for the manifestation of discomfort symptoms associated with DE.
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Affiliation(s)
- Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; Wada Eye Clinic, Chiba, Japan; Ishida Eye Clinic, Shizuoka, Japan.
| | - Sachiko Inoue
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; Haneginomori Eye Clinic, Tokyo, Japan
| | - Motoko Kawashima
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Reiko Ishida
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; Ishida Eye Clinic, Shizuoka, Japan
| | - Shigeru Nakamura
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; Tsubota Laboratory, Inc., Tokyo, Japan
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Wilkinson AC, Ishida R, Nakauchi H, Yamazaki S. Long-term ex vivo expansion of mouse hematopoietic stem cells. Nat Protoc 2020; 15:628-648. [PMID: 31915389 DOI: 10.1038/s41596-019-0263-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 10/30/2019] [Indexed: 01/07/2023]
Abstract
Utilizing multipotent and self-renewing capabilities, hematopoietic stem cells (HSCs) can maintain hematopoiesis throughout life. However, the mechanism behind such remarkable abilities remains undiscovered, at least in part because of the paucity of HSCs and the modest ex vivo expansion of HSCs in media that contain poorly defined albumin supplements such as bovine serum albumin. Here, we describe a simple platform for the expansion of functional mouse HSCs ex vivo for >1 month under fully defined albumin-free conditions. The culture system affords 236- to 899-fold expansion over the course of a month and is also amenable to clonal analysis of HSC heterogeneity. The large numbers of expanded HSCs enable HSC transplantation into nonconditioned recipients, which is otherwise not routinely feasible because of the large numbers of HSCs required. This protocol therefore provides a powerful approach with which to interrogate HSC self-renewal and lineage commitment and, more broadly, to study and characterize the hematopoietic and immune systems.
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Affiliation(s)
- Adam C Wilkinson
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Reiko Ishida
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Division of Stem Cell Biology, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Hiromitsu Nakauchi
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA. .,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA. .,Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
| | - Satoshi Yamazaki
- Division of Stem Cell Biology, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
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5
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Abstract
PURPOSE This study aimed to prospectively assess tear dynamics in soft contact lens-induced dry eye while wearing and after removing the soft contact lenses. MATERIALS AND METHODS We analyzed 17 right eyes of soft contact lens users at Wada Eye Clinic (11 men, 6 women; mean age: 36.8 ± 8.3 years; range: 24-57 years). Participants were divided into two groups depending on presence of dry eye symptoms. Video interferometry was used to observe tear dynamics while wearing and after removing soft contact lenses. Interference images focusing on tear spread and interference fringe were compared between groups. RESULTS This study included 10 symptomatic and 7 asymptomatic eyes. Considering the symptomatic eyes, while wearing soft contact lenses, 8 eyes showed poor tear spread and multicolor interference fringe, i.e., swift flow of multicolor interference waves after a grayish monochromatic band-color after a blink, but 8 and 10 eyes showed good tear spread and a grayish monochromatic interference fringe when soft contact lenses were removed, respectively. As for asymptomatic eyes, 6 eyes exhibited good tear spread and a grayish monochromatic interference fringe while wearing soft contact lenses and after removing soft contact lenses. CONCLUSIONS soft contact lens-induced dry eye was associated with tear dynamics only while wearing soft contact lenses. Observation of tear film dynamics in eyes with soft contact lenses could facilitate the understanding of dry eye-related symptoms.
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Affiliation(s)
- Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine , Tokyo, Japan.,Department of Ophthalmology, Wada Eye Clinic , Chiba, Japan
| | - Motoko Kawashima
- Department of Ophthalmology, Keio University School of Medicine , Tokyo, Japan
| | - Reiko Ishida
- Department of Ophthalmology, Keio University School of Medicine , Tokyo, Japan.,Department of Ophthalmology, Ishida Eye Clinic , Shizuoka, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine , Tokyo, Japan
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Wilkinson A, Ishida R, Kikuchi M, Sudo K, Morita M, Crisostomo RV, Yamamoto R, Loh K, Nakamura Y, Watanabe M, Nakauchi H, Yamazaki S. 2001 - LONG-TERM EX VIVO EXPANSION OF FUNCTIONAL HEMATOPOIETIC STEM CELLS. Exp Hematol 2019. [DOI: 10.1016/j.exphem.2019.06.276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wilkinson AC, Ishida R, Kikuchi M, Sudo K, Morita M, Crisostomo RV, Yamamoto R, Loh KM, Nakamura Y, Watanabe M, Nakauchi H, Yamazaki S. Author Correction: Long-term ex vivo haematopoietic-stem-cell expansion allows nonconditioned transplantation. Nature 2019; 571:E12. [PMID: 31289376 DOI: 10.1038/s41586-019-1395-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An Amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Adam C Wilkinson
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Misako Kikuchi
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kazuhiro Sudo
- Cell Engineering Division, RIKEN BioResource Research Center, Tsukuba, Japan
| | - Maiko Morita
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Ralph Valentine Crisostomo
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Ryo Yamamoto
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Kyle M Loh
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA, USA.,Stanford UC Berkeley Siebel Stem Cell Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Research Center, Tsukuba, Japan
| | - Motoo Watanabe
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Hiromitsu Nakauchi
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA. .,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA. .,Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
| | - Satoshi Yamazaki
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan. .,Division of Stem Cell Biology, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
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Wilkinson AC, Ishida R, Kikuchi M, Sudo K, Morita M, Crisostomo RV, Yamamoto R, Loh KM, Nakamura Y, Watanabe M, Nakauchi H, Yamazaki S. Long-term ex vivo haematopoietic-stem-cell expansion allows nonconditioned transplantation. Nature 2019; 571:117-121. [PMID: 31142833 PMCID: PMC7006049 DOI: 10.1038/s41586-019-1244-x] [Citation(s) in RCA: 230] [Impact Index Per Article: 46.0] [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: 11/30/2018] [Accepted: 04/30/2019] [Indexed: 01/10/2023]
Abstract
Multipotent self-renewing haematopoietic stem cells (HSCs) regenerate the adult blood system after transplantation1, which is a curative therapy for numerous diseases including immunodeficiencies and leukaemias2. Although substantial effort has been applied to identifying HSC maintenance factors through the characterization of the in vivo bone-marrow HSC microenvironment or niche3-5, stable ex vivo HSC expansion has previously been unattainable6,7. Here we describe the development of a defined, albumin-free culture system that supports the long-term ex vivo expansion of functional mouse HSCs. We used a systematic optimization approach, and found that high levels of thrombopoietin synergize with low levels of stem-cell factor and fibronectin to sustain HSC self-renewal. Serum albumin has long been recognized as a major source of biological contaminants in HSC cultures8; we identify polyvinyl alcohol as a functionally superior replacement for serum albumin that is compatible with good manufacturing practice. These conditions afford between 236- and 899-fold expansions of functional HSCs over 1 month, although analysis of clonally derived cultures suggests that there is considerable heterogeneity in the self-renewal capacity of HSCs ex vivo. Using this system, HSC cultures that are derived from only 50 cells robustly engraft in recipient mice without the normal requirement for toxic pre-conditioning (for example, radiation), which may be relevant for HSC transplantation in humans. These findings therefore have important implications for both basic HSC research and clinical haematology.
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Affiliation(s)
- Adam C Wilkinson
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Reiko Ishida
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Misako Kikuchi
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kazuhiro Sudo
- Cell Engineering Division, RIKEN BioResource Research Center, Tsukuba, Japan
| | - Maiko Morita
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Ralph Valentine Crisostomo
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Ryo Yamamoto
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Kyle M Loh
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA, USA.,Stanford UC Berkeley Siebel Stem Cell Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Research Center, Tsukuba, Japan
| | - Motoo Watanabe
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Hiromitsu Nakauchi
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA. .,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA. .,Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
| | - Satoshi Yamazaki
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan. .,Division of Stem Cell Biology, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
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Tanabe H, Kawashima M, Kaido M, Ishida R, Kawakita T, Tsubota K. Safety and efficacy of wiping lid margins with lid hygiene shampoo using the "eye brush", a novel lid hygiene item, in healthy subjects: a pilot study. BMC Ophthalmol 2019; 19:41. [PMID: 30717687 PMCID: PMC6360667 DOI: 10.1186/s12886-019-1052-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 01/29/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To evaluate the safety and efficacy of using a lid hygiene brush prototype to wipe the lid margins with lid hygiene shampoo in subjects with normal meibomian glands. METHODS Twelve eyes of 6 subjects were all evaluated just before and after wiping lid margins using 1) tap water alone, 2) Eye Shampoo, 3) Eye Brush, or 4) both products, each during a different week. The results after using both products twice daily for 1 month were also evaluated. Wiping efficacy was determined by post-wiping scores for the remaining fluorescein-stained 0.3% Tarivid ointment fully applied to eyelids and lid margins under microscopic view illuminated by blue light just after performing each of the four lid hygiene methods described above. RESULTS No significant deterioration in ocular conditions occurred. Eyestrain, eye discharge, and dryness decreased with tap water (P = 0.020), Eye Shampoo (P = 0.036), and Eye Brush (P = 0.014), respectively. Sensations of eye discharge increased after 1 month of using both products (P = 0.042). The wiping efficacy of Eye Brush, Eye Shampoo or both was significantly greater than that of tap water alone (two-sided test, P = 0.003, 0.003, 0.002), and using both significantly increased efficacy above Eye Shampoo use alone (one-sided test, P = 0.009). CONCLUSIONS Wiping lid margins using Eye Brush enhanced the cleansing power of Eye Shampoo. A daily healthcare routine using both products could be a safe and effective option for daily lid hygiene. TRIAL REGISTRATION UMIN000016905 . Registration date: March 24, 2015; the study was prospectively registered.
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Affiliation(s)
- Hirotaka Tanabe
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan. .,Department of Ophthalmology, Ashikaga Red Cross Hospital, 284-1, Yobecho, Ashikaga, Tochigi, 326-0843, Japan.
| | - Motoko Kawashima
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Wada Eye Clinic, 2578-27, Hojo, Tateyama, Chiba, 294-0045, Japan
| | - Reiko Ishida
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tetsuya Kawakita
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
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Tanabe H, Kaido M, Kawashima M, Ishida R, Ayaki M, Tsubota K. Effect of Eyelid Hygiene Detergent on Obstructive Meibomian Gland Dysfunction. J Oleo Sci 2019; 68:67-78. [PMID: 30542004 DOI: 10.5650/jos.ess18161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
PURPOSE To investigate the efficacy of eyelid margin cleansing with lid hygiene detergent in patients with obstructive meibomian gland dysfunction (MGD). METHODS As a pilot study, we investigated the safety and efficacy of lid hygiene using tap water and/or lid hygiene shampoo in fourteen eyes of 7 normal subjects. All subjects were instructed to cleanse the eyelid margin with tap water and/or lid hygiene shampoo. As a main prospective clinical study, thirty-four eyes of 34 patients with obstructive MGD were enrolled. All subjects were instructed to cleanse the eyelid margin with lid hygiene shampoo at least once daily for 1 month. Ocular surface conditions were observed before and 1 month after study initiation. RESULTS A significant exacerbating change (p < 0.05) was not detected after either method in the pilot study. In the main study, significant improvements were observed in tear break-up time (TBUT), lid margin lissamine green staining scores, vascular dilatation, and meibum status (p < 0.05). No significant improvements in corneal or conjunctival fluorescein staining scores, the mucocutaneous junction, lid margin deformation, or plugging were observed (p ≥ 0.05). Subjective improvements were observed in 27 subjects. Meibography revealed that 28 subjects had normal meibomian glands, and 6 subjects had meibomian gland atrophy. Significant improvements were observed in TBUT, vascular dilatation, and meibum status only in the group with normal meibomian glands (p < 0.05), but subjective symptoms and lid margin lissamine green staining scores improved in both groups (p < 0.05). No subjects experienced any problems throughout the study. CONCLUSION Daily routine use of lid hygiene detergent can alleviate the symptoms of MGD regardless of meibomian gland atrophy.
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Affiliation(s)
- Hirotaka Tanabe
- Department of Ophthalmology, Keio University School of Medicine.,Department of Ophthalmology, Ashikaga Red Cross Hospital
| | - Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine.,Wada Eye Clinic
| | | | - Reiko Ishida
- Department of Ophthalmology, Keio University School of Medicine
| | - Masahiko Ayaki
- Department of Ophthalmology, Keio University School of Medicine
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine
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Higuchi Y, Matsumoto H, Matsubara C, Morimoto N, Ishida R, Masuda T, Iwata A, Fuchioka S. SITTING TRUNK EXERCISES FOR OLDER ADULTS TO IMPROVE BALANCE AND MOBILITY: A PILOT STUDY. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | | | | | | | - T Masuda
- Shiga University of Medical Science Hospital
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12
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Kasai M, Ishida R, Nakahara K, Okumura K, Aoki K. Mesenchymal cell differentiation and diseases: involvement of translin/TRAX complexes and associated proteins. Ann N Y Acad Sci 2018; 1421:37-45. [PMID: 29740830 DOI: 10.1111/nyas.13690] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 02/22/2018] [Accepted: 03/01/2018] [Indexed: 12/22/2022]
Abstract
Translin and translin-associated factor X (translin/TRAX) proteins have been implicated in a variety of cellular activities central to nucleic acid metabolism. Accumulating evidence indicates that translin/TRAX complexes participate in processes ensuring the replication of DNA, as well as cell division. Significant progress has been made in understanding the roles of translin/TRAX complexes in RNA metabolism, such as through RNA-induced silencing complex activation or the microRNA depletion that occurs in Dicer deficiency. At the cellular level, translin-deficient (Tsn-/- ) mice display delayed endochondral ossification or progressive bone marrow failure with ectopic osteogenesis and adipogenesis, suggesting involvement in mesenchymal cell differentiation. In this review, we summarize the molecular and cellular functions of translin homo-octamer and translin/TRAX hetero-octamer. Finally, we discuss the multifaceted roles of translin, TRAX, and associated proteins in the healthy and disease states.
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Affiliation(s)
- Masataka Kasai
- Juntendo University School of Medicine, Atopy Research Center, Tokyo, Japan.,Department of Immunology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Reiko Ishida
- Center for Stem Cell and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kazuhiko Nakahara
- National Institution for Academic Degrees and Quality Enhancement of Higher Education, Tokyo, Japan
| | - Ko Okumura
- Juntendo University School of Medicine, Atopy Research Center, Tokyo, Japan
| | - Katsunori Aoki
- Occupational Health Department, Sony Corporate Service Corporation, Kanagawa, Japan
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13
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Iguchi T, Ohkubo M, Sugiyama T, Hori K, Ono T, Ishida R. Effects of water viscosity and tongue ingestion site on tongue pressure during food bolus propulsion. J Oral Rehabil 2018. [DOI: 10.1111/joor.12623] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- T. Iguchi
- Department of Oral Health & Clinical Science; Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
| | - M. Ohkubo
- Department of Oral Health & Clinical Science; Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
| | - T. Sugiyama
- Department of Oral Health & Clinical Science; Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
| | - K. Hori
- Divisions of Comprehensive Prosthodontics; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - T. Ono
- Divisions of Comprehensive Prosthodontics; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - R. Ishida
- Department of Oral Health & Clinical Science; Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
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14
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Fonseca D, Garla P, Sala P, Machado N, Ishida R, Guarda I, Moura E, Sakai P, Santo M, Silva I, Heymsfield S, Torrinhas R, Giannella-Neto D, Waitzberg D. PT04.6: Glycemic Homeostasis After Roux-En-Y Gastric Bypass (RYGB) is More Associated with an Increase in GLP-1 than Weight Loss. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30695-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Kaido M, Kawashima M, Ishida R, Tsubota K. Severe symptoms of short tear break-up time dry eye are associated with accommodative microfluctuations. Clin Ophthalmol 2017; 11:861-869. [PMID: 28503063 PMCID: PMC5426475 DOI: 10.2147/opth.s128939] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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] [Indexed: 01/14/2023] Open
Abstract
AIM Validating the hypothesis that accommodative microfluctuations (AMFs) may be associated with severe symptoms in short tear break-up time (BUT) dry eye (DE). METHODS This study included 12 subjects with short BUT DE (age: 49.6±18.3 years). Diagnoses were performed based on the presence of DE symptoms, BUT ≤5 s, Schirmer score >5 mm, and negative keratoconjunctival epithelial damage. Tear evaluation, AMF, and functional visual acuity (VA) examinations were conducted before and after DE treatment. The AMF parameters evaluated were: total high-frequency component (HFC), HFC with low accommodation for the task of staring into the distance (HFC1), HFC with high accommodation for deskwork (HFC2). A subjective questionnaire of DE symptoms was also performed. RESULTS Mean BUT increased from 1.9±2.0 to 6.4±2.5 s after treatment (P<0.05). The mean logarithm of the minimum angle of resolution functional VA significantly improved (from 0.19±0.19 to 0.12±0.17; P<0.05). Mean power spectrum values for total HFC and HFC1 decreased (from 61.3±5.7 to 53.8±6.6 dB and from 62.9±10.5 to 52.4±6.2 dB, respectively; P<0.05), while the mean HFC2 power spectrum values did not differ before and after treatment (P>0.05). Subjective DE symptoms were reduced in nine patients. CONCLUSION Along with the improvement of BUT after treatment, DE symptoms diminished and HFC1 and functional VA improved, suggesting that tear film instability is associated with deterioration of functional VA, AMF, and DE symptoms.
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Affiliation(s)
- Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine, Tokyo.,Wada Eye Clinic, Chiba
| | - Motoko Kawashima
- Department of Ophthalmology, Keio University School of Medicine, Tokyo
| | - Reiko Ishida
- Department of Ophthalmology, Keio University School of Medicine, Tokyo.,Ishida Eye Clinic, Shizuoka, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, Tokyo
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16
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Ieyasu A, Ishida R, Kimura T, Morita M, Wilkinson AC, Sudo K, Nishimura T, Ohehara J, Tajima Y, Lai CY, Otsu M, Nakamura Y, Ema H, Nakauchi H, Yamazaki S. An All-Recombinant Protein-Based Culture System Specifically Identifies Hematopoietic Stem Cell Maintenance Factors. Stem Cell Reports 2017; 8:500-508. [PMID: 28238792 PMCID: PMC5355634 DOI: 10.1016/j.stemcr.2017.01.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [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: 07/27/2016] [Revised: 01/17/2017] [Accepted: 01/18/2017] [Indexed: 12/02/2022] Open
Abstract
Hematopoietic stem cells (HSCs) are considered one of the most promising therapeutic targets for the treatment of various blood disorders. However, due to difficulties in establishing stable maintenance and expansion of HSCs in vitro, their insufficient supply is a major constraint to transplantation studies. To solve these problems we have developed a fully defined, all-recombinant protein-based culture system. Through this system, we have identified hemopexin (HPX) and interleukin-1α as responsible for HSC maintenance in vitro. Subsequent molecular analysis revealed that HPX reduces intracellular reactive oxygen species levels within cultured HSCs. Furthermore, bone marrow immunostaining and 3D immunohistochemistry revealed that HPX is expressed in non-myelinating Schwann cells, known HSC niche constituents. These results highlight the utility of this fully defined all-recombinant protein-based culture system for reproducible in vitro HSC culture and its potential to contribute to the identification of factors responsible for in vitro maintenance, expansion, and differentiation of stem cell populations. Different BSA lots alter how HSCs respond to cytokines RSA can replace BSA to provide HSC maintenance culture with minimal variability By comparing the protein profiles of “good” and “bad” BSAs, HPX was identified HPX reduces HSC intracellular reactive ROS and is expressed by BM Schwann cells
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Affiliation(s)
- Aki Ieyasu
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Reiko Ishida
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Takaharu Kimura
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Maiko Morita
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Adam C Wilkinson
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Lorry I. Lokey Stem Cell Research Building, 265 Campus Drive, Stanford, CA 94305-5461, USA
| | - Kazuhiro Sudo
- Cell Engineering Division, BioResource Center, RIKEN, 3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan
| | - Toshinobu Nishimura
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Lorry I. Lokey Stem Cell Research Building, 265 Campus Drive, Stanford, CA 94305-5461, USA
| | - Jun Ohehara
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Yoko Tajima
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Chen-Yi Lai
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Makoto Otsu
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Yukio Nakamura
- Cell Engineering Division, BioResource Center, RIKEN, 3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan
| | - Hideo Ema
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical Collage, 288 Nanjing Road, Tianjin 300020, China
| | - Hiromitsu Nakauchi
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Lorry I. Lokey Stem Cell Research Building, 265 Campus Drive, Stanford, CA 94305-5461, USA.
| | - Satoshi Yamazaki
- Laboratory of Stem Cell Therapy, Center for Experimental Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; Project Division of Advanced Regenerative Medicine, The Institute of Medical Science, the University of Tokyo, Tokyo 108-8639, Japan.
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17
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Hiraki K, Yamada Y, Kurose M, Ofusa W, Sugiyama T, Ishida R. Application of a barometer for assessment of oral functions: Donders space. J Oral Rehabil 2016; 44:65-72. [DOI: 10.1111/joor.12456] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2016] [Indexed: 11/30/2022]
Affiliation(s)
- K. Hiraki
- Department of Oral Health and Clinical Science Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
| | - Y. Yamada
- Oral Health Science Center; Tokyo Dental College; Tokyo Japan
| | - M. Kurose
- Division of Oral Physiology; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - W. Ofusa
- Department of Geriatric Dentistry; Tsurumi University School of Dental Medicine; Yokohama Japan
- Department of Physiology; Tokyo Dental College; Tokyo Japan
| | - T. Sugiyama
- Department of Oral Health and Clinical Science Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
| | - R. Ishida
- Department of Oral Health and Clinical Science Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
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18
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Kaido M, Ibrahim OMA, Kawashima M, Ishida R, Sato EA, Tsubota K. Eyelid cleansing with ointment for obstructive meibomian gland dysfunction. Jpn J Ophthalmol 2016; 61:124-130. [DOI: 10.1007/s10384-016-0477-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 07/29/2016] [Indexed: 11/28/2022]
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Ohkubo M, Higaki T, Nishikawa K, Otonari-Yamamoto M, Sugiyama T, Ishida R, Wakoh M. Optimal contrast enhancement liquid for dynamic MRI of swallowing. J Oral Rehabil 2016; 43:678-82. [DOI: 10.1111/joor.12416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2016] [Indexed: 11/30/2022]
Affiliation(s)
- M. Ohkubo
- Department of Oral Health & Clinical Science; Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
| | - T. Higaki
- Department of Radiology; Chiba Hospital; Tokyo Dental College; Chiba Japan
| | - K. Nishikawa
- Department of Oral & Maxillofacial Radiology; Tokyo Dental College; Tokyo Japan
| | - M. Otonari-Yamamoto
- Department of Oral & Maxillofacial Radiology; Tokyo Dental College; Tokyo Japan
| | - T. Sugiyama
- Department of Oral Health & Clinical Science; Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
| | - R. Ishida
- Department of Oral Health & Clinical Science; Division of Dysphagia Rehabilitation; Tokyo Dental College; Tokyo Japan
| | - M. Wakoh
- Department of Oral & Maxillofacial Radiology; Tokyo Dental College; Tokyo Japan
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Kaido M, Kawashima M, Ishida R, Tsubota K. Relationship of Corneal Pain Sensitivity With Dry Eye Symptoms in Dry Eye With Short Tear Break-Up Time. ACTA ACUST UNITED AC 2016; 57:914-9. [DOI: 10.1167/iovs.15-18447] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Minako Kaido
- Department of Ophthalmology Keio University School of Medicine, Tokyo, Japan 2Shinanozaka Clinic, Tokyo, Japan 3Wada Eye Clinic, Chiba, Japan
| | - Motoko Kawashima
- Department of Ophthalmology Keio University School of Medicine, Tokyo, Japan
| | - Reiko Ishida
- Department of Ophthalmology Keio University School of Medicine, Tokyo, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology Keio University School of Medicine, Tokyo, Japan
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21
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Giacchero D, Budha Magar K, Giacchero P, Budha Magar J, Laville A, Ishida R, Chenat V, Kieffer C, Paré F, Grange F, Caumes E. Dermatologie au pied de l’Himalaya : un mois de volontariat dans un dispensaire de moyenne montagne au Népal. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ichihashi Y, Ide T, Kaido M, Ishida R, Hatou S, Tsubota K. Short break-up time type dry eye has potential ocular surface abnormalities. Taiwan J Ophthalmol 2015; 5:68-71. [PMID: 29018670 PMCID: PMC5602730 DOI: 10.1016/j.tjo.2015.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [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: 07/07/2014] [Revised: 02/05/2015] [Accepted: 02/16/2015] [Indexed: 12/04/2022] Open
Abstract
PURPOSE To describe a case series in which corneal fluorescein staining (CFS) development occurred in short break-up time (s-BUT) dry eyes after a short period during prolonged opening of the eye. METHODS The study was designed as a clinical case series. Ocular surface evaluations were performed on 13 individuals with s-BUT dry eye. Tear function examinations included Schirmer's test and BUT evaluation. RESULTS In all 13 cases, the BUT was short, but the tear quantity was not so bad. In all cases, CFS developed following a single eye opening, and the staining was observed at sites that showed as dark spots. In several cases, the CFS disappeared later. CONCLUSION In this study, we demonstrated that CFS could develop following a single eye opening. Based on our findings, CFS is a dynamic phenomenon rather than a stable indicator of ocular surface abnormalities. Moreover, s-BUT dry eye has the potential to show ocular surface abnormalities.
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Affiliation(s)
- Yoshiyuki Ichihashi
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Minamiaoyama Eye Clinic, Tokyo, Japan
| | - Takeshi Ide
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Minamiaoyama Eye Clinic, Tokyo, Japan
| | - Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Reiko Ishida
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Ishida Ganka, Shizuoka, Japan
| | - Shin Hatou
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
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Wakasa M, Takeda K, Motoyama A, Ishida R, Akao H, Kawai Y, Kitayama M, Ueda Y, Kajinami K. The longest-lived homozygous familial hypercholesterolemia as genetically-determined mild phenotype: an autopsy case of fh-tonami2. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.261] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Xu H, Huang X, Riserus U, Cederholm T, Lindholm B, Arnlov J, Carrero JJ, Leiba A, Vivante A, Bulednikov Y, Golan E, Skorecki K, Shohat T, Mjoen G, Zannad F, Jardine A, Schmieder R, Fellstrom B, Holdaas H, Zager P, Miskulin D, Gassman J, Kendrick C, Ploth D, Jhamb M, Jankowski V, Schulz A, Mischak H, Zidek W, Jankowski J, Lee YK, Cho A, Kim JK, Choi MJ, Kim SJ, Yoon JW, Koo JR, Kim HJ, Noh JW, Itano S, Satoh M, Kidokoro K, Sasaki T, Kashihara N, Koutroumpas G, Sarafidis P, Georgianos P, Karpetas A, Protogerou A, Syrganis C, Malindretos P, Raptopoulou K, Panagoutsos S, Pasadakis P, Zager P, Miskulin D, Gassman J, Kendrick C, Jhamb M, Ploth D, Vink EE, De Boer A, Verloop WL, Spiering W, Voskuil M, Vonken EJ, Hoogduin JM, Leiner T, Bots ML, Blankestijn PJ, Sarafidis PA, Karpetas AV, Georgianos PI, Bikos A, Sklavenitis-Pistofidis R, Tzimou R, Raptis V, Vakianis P, Tersi M, Liakopoulos V, Lasaridis AN, Protogerou A, Ribeiro S, Fernandes J, Garrido P, Sereno J, Vala H, Bronze Da Rocha E, Belo L, Costa E, Reis F, Santos-Silva A, Kalaitzidis R, Skapinakis P, Karathanos V, Karasavvidou D, Katatsis G, Pappas K, Hatzidakis S, Siamopoulos K, Margulis F, Sabbatiello R, Castro C, Ramallo S, Martinez M, Schiavelli R, Ganem D, Nakhoul F, Roth A, Farber E, Kim CS, Kim HY, Kang YU, Choi JS, Bae EH, Ma SK, Kim SW, Koutroumpas G, Sarafidis P, Georgianos P, Karpetas A, Protogerou A, Malindretos P, Syrganis C, Tzanis G, Panagoutsos S, Pasadakis P, Jankowski M, Kasztan M, Kowalski R, Piwkowska A, Rogacka D, Szczepa Ska-Konkel M, Angielski S, Evangelou D, Naka K, Kalaitzidis R, Lakkas L, Bechlioulis A, Gkirdis I, Nakas G, Zarzoulas F, Kotsia A, Balafa O, Tzeltzes G, Pappas K, Katsouras C, Dounousi E, Michalis L, Siamopoulos K, Maciorkowska D, Zbroch E, Koc-Zorawska E, Malyszko J, Karabay Bayazit A, Yuksekkaya I, Aynaci S, Anarat A, Nakai K, Fujii H, Ishida R, Utaka C, Awata R, Goto S, Ito J, Nishi S, Elsurer R, Afsar B, Lepar Z, Radulescu D, David C, Peride I, Niculae A, Checherita IA, Ciocalteu A, Sungur CI, Kanbay M, Siriopol D, Nistor I, Elcioglu OC, Telci O, Johnson R, Covic A, Vettoretti S, Gallazzi E, Meazza R, Gagliardi V, Villarini A, Alfieri CM, Floreani R, Messa P, Vettoretti S, Alfieri CM, Gallazzi E, Gagliardi V, Villarini A, Meazza R, Floreani R, Messa P, Kotovskaya Y, Villevalde S, Kobalava Z, Circiumaru A, Rusu E, Zilisteanu D, Atasie T, Cirstea F, Ecobici M, Voiculescu M, Rosca M, Tanase C, Baoti I, Vidjak V, Prka in I, Bulum T, Arslan E, Sarlak H, Cakar M, Demirbas S, Akhan M, Kurt O, Balta S, Yesilkaya S, Bulucu F, Chan CK, Lin YH, Wu VC, Wu KD, De Beus E, Bots ML, Van Zuilen AD, Wetzels JF, Blankestijn PJ, Mohaupt M, Straessle K, Baumann M, Raio L, Sirbek D, Nascimento MA, Mouro MG, Punaro GR, Mello MT, Tufik S, Higa EMS. HYPERTENSION. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu142] [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: 11/12/2022] Open
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Kaido M, Ishida R, Dogru M, Tsubota K. Short-Term Effects of Instillation of a Rebamipide Suspension on Visual Function. J Ocul Pharmacol Ther 2014; 30:313-8. [DOI: 10.1089/jop.2013.0086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Wada Eye Clinic, Chiba, Japan
| | - Reiko Ishida
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Ishida Eye Clinic, Shizuoka, Japan
| | - Murat Dogru
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
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Watanabe K, Kaido M, Ishida R, Dogru M, Negishi K, Tsubota K. The effect of tinted soft contact lens wear on functional visual acuity and higher-order aberrations. Cont Lens Anterior Eye 2014; 37:203-8. [PMID: 24721637 DOI: 10.1016/j.clae.2013.11.009] [Citation(s) in RCA: 7] [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: 04/11/2013] [Revised: 09/30/2013] [Accepted: 11/20/2013] [Indexed: 11/17/2022]
Abstract
PURPOSE To investigate the differences of functional visual acuity (FVA) and high order aberrations (HOAs) in relation to tinted and clear hydrogel soft contact lens (SCL) wear. METHODS A prospective comparative study was performed in 16 eyes of 16 healthy volunteers. Dynamic visual acuity (using a FVA measurement system) and higher-order aberrations (using a wavefront sensor) were compared in subjects wearing two types of soft contact lenses: 1-day Acuvue(®) (Vistakon, Jacksonville, FL) clear and the 1-day Acuvue(®) Define(TM) (Vistakon, Jacksonville, FL) tinted lens. The blink rates were recorded during FVA testing. The correlation between the difference of HOAs and differences in FVA values was analyzed. RESULTS The mean LogMAR FVA scores with clear and tinted SCLs were 0.07 ± 0.13 and 0.14 ± 0.17 (P<0.05). The mean blink frequencies with clear and tinted SCL wear were 18.4 ± 8.3 and 25.3 ± 4.7 blinks/min (P<0.05). Both 3rd-order aberrations and total HOAs showed statistically significant differences between the two types of soft contact lenses for 6mm pupil measurements (P<0.05). A significant positive linear correlation was observed between ΔHOAs and ΔLogMAR FVA for 6mm pupil measurements (R=0.53, P=0.04). CONCLUSIONS Tinted contact lens wear appears to induce a reduction in optical quality. Functional visual acuity measurement is a useful procedure to study the changes of visual performance and quality in tinted contact lens wear.
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Affiliation(s)
- Kazuhiro Watanabe
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Reiko Ishida
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Murat Dogru
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; Department of Ophthalmology, Tokyo Dental College, Ichikawa Hospital, Chiba, Japan.
| | - Kazuno Negishi
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
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Hara M, Ishida R, Ohkubo M, Sugiyama T, Abe S. Effects of varying fixed lingual apex positions on tongue pressure during straw drinking. J Oral Rehabil 2014; 41:374-80. [DOI: 10.1111/joor.12154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2014] [Indexed: 11/27/2022]
Affiliation(s)
- M. Hara
- Department of Dysphagia Rehabilitation and Community Dental Care; Tokyo Dental College; Chiba Japan
- Department of Anatomy; Tokyo Dental College; Tokyo Japan
| | - R. Ishida
- Department of Dysphagia Rehabilitation and Community Dental Care; Tokyo Dental College; Chiba Japan
| | - M. Ohkubo
- Department of Dysphagia Rehabilitation and Community Dental Care; Tokyo Dental College; Chiba Japan
| | - T. Sugiyama
- Department of Dysphagia Rehabilitation and Community Dental Care; Tokyo Dental College; Chiba Japan
| | - S. Abe
- Department of Anatomy; Tokyo Dental College; Tokyo Japan
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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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Kaido M, Matsumoto Y, Shigeno Y, Ishida R, Dogru M, Tsubota K. Corneal fluorescein staining correlates with visual function in dry eye patients. Invest Ophthalmol Vis Sci 2011; 52:9516-22. [PMID: 22110071 DOI: 10.1167/iovs.11-8412] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To investigate the changes in functional visual acuity (VA) and higher order aberrations in dry eye patients. METHODS In this prospective comparative case series, 22 right eyes were classified into those with or without superficial punctate keratopathy (SPK) in the central cornea of 22 patients with Sjögren syndrome; 10 right eyes of 10 normal subjects served as the control. Serial measurements of VAs using a functional VA measurement system and higher order aberrations using a wavefront sensor were performed under blink-free conditions without topical anesthesia over a 10-second period. The parameters for each measurement were compared among the SPK-positive and -negative and normal groups. The correlation between those parameters was also analyzed. RESULTS Dry eye with SPK showed significant deterioration of visual function and optical quality compared with dry eye without SPK and in normal eyes, as detected by both the visual maintenance ratio (VMR; P < 0.05) and the variation of VA (P < 0.05) and by comalike and total higher order aberrations (P < 0.05). Moreover, the severity of epithelial damage at the central cornea correlated significantly with VMR (P < 0.01) and variation of VA (P < 0.01) as well as comalike (P < 0.05) and total higher order aberrations (P < 0.05). The dry eye group without SPK showed minor visual deterioration compared with normal eyes, as detected only by VMR (P < 0.05). CONCLUSIONS Optical disturbances at the central optical zone of the cornea in dry eye disease may affect visual performance. Functional VA measurement may be an applicable method of evaluating visual performance in dry eyes that is as efficient as wavefront aberration measurements.
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Affiliation(s)
- Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan.
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Hara S, Kojima T, Ishida R, Goto E, Matsumoto Y, Kaido M, Shimazaki J, Dogru M, Tsubota K. Evaluation of Tear Stability After Surgery for Conjunctivochalasis. Optom Vis Sci 2011; 88:1112-8. [DOI: 10.1097/opx.0b013e3182223573] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Kaido M, Ishida R, Dogru M, Tsubota K. The relation of functional visual acuity measurement methodology to tear functions and ocular surface status. Jpn J Ophthalmol 2011; 55:451-459. [DOI: 10.1007/s10384-011-0049-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Accepted: 04/06/2011] [Indexed: 10/18/2022]
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Saito R, Kawai Y, Watanabe M, Motoyama A, Ishida R, Kitayama M, Kajinami K. 362 ATHEROGENIC LIPID PROFILE AND DEVELOPMENT OF MULTIVESSEL CORONARY ARTERY DISEASE IN WOMEN. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70363-4] [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: 12/01/2022]
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Kinoshita K, Ohazama M, Ishida R, Kusunoki H. Daily fecal sex steroid hormonal changes and mating success in captive female cheetahs (Acinonyx jubatus) in Japan. Anim Reprod Sci 2011; 125:204-10. [PMID: 21398057 DOI: 10.1016/j.anireprosci.2011.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 01/09/2011] [Accepted: 02/01/2011] [Indexed: 10/18/2022]
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Kaido M, Toda I, Ishida R, Konagai M, Dogru M, Tsubota K. Age-related changes in functional visual acuity in healthy individuals. Jpn J Ophthalmol 2011; 55:183-189. [DOI: 10.1007/s10384-011-0026-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Accepted: 12/14/2010] [Indexed: 10/18/2022]
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Wakamatsu TH, Yamaguchi T, Negishi K, Kaido M, Matsumoto Y, Ishida R, Kojima T, Ibrahim OMA, Saiki M, Dogru M, Tsubota K. Functional visual acuity after neodymium:YAG laser capsulotomy in patients with posterior capsule opacification and good visual acuity preoperatively. J Cataract Refract Surg 2011; 37:258-64. [DOI: 10.1016/j.jcrs.2010.08.048] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Revised: 08/19/2010] [Accepted: 08/22/2010] [Indexed: 10/18/2022]
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Kojima T, Ishida R, Sato EA, Kawakita T, Ibrahim OMA, Matsumoto Y, Kaido M, Dogru M, Tsubota K. In Vivo Evaluation of Ocular Demodicosis Using Laser Scanning Confocal Microscopy. ACTA ACUST UNITED AC 2011; 52:565-9. [DOI: 10.1167/iovs.10-5477] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Takashi Kojima
- From the Johnson & Johnson Department of Ocular Surface and Visual Optics, and the 2Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; and
| | | | - Enrique Adan Sato
- From the Johnson & Johnson Department of Ocular Surface and Visual Optics, and
| | - Tetsuya Kawakita
- the Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; and
| | - Osama M. A. Ibrahim
- From the Johnson & Johnson Department of Ocular Surface and Visual Optics, and
| | - Yukihiro Matsumoto
- From the Johnson & Johnson Department of Ocular Surface and Visual Optics, and
| | - Minako Kaido
- From the Johnson & Johnson Department of Ocular Surface and Visual Optics, and the 2Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; and
| | - Murat Dogru
- From the Johnson & Johnson Department of Ocular Surface and Visual Optics, and
| | - Kazuo Tsubota
- the Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; and
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Wakamatsu TH, Sato EA, Matsumoto Y, Ibrahim OMA, Dogru M, Kaido M, Ishida R, Tsubota K. Conjunctival In Vivo Confocal Scanning Laser Microscopy in Patients with Sjögren Syndrome. ACTA ACUST UNITED AC 2010; 51:144-50. [DOI: 10.1167/iovs.08-2722] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Tais Hitomi Wakamatsu
- From the Johnson and Johnson Department of Ocular Surface and Visual Optics, the 2Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; and
| | - Enrique Adan Sato
- From the Johnson and Johnson Department of Ocular Surface and Visual Optics,
| | - Yukihiro Matsumoto
- From the Johnson and Johnson Department of Ocular Surface and Visual Optics,
| | - Osama M. A. Ibrahim
- From the Johnson and Johnson Department of Ocular Surface and Visual Optics, the 2Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; and
| | - Murat Dogru
- From the Johnson and Johnson Department of Ocular Surface and Visual Optics,
| | - Minako Kaido
- From the Johnson and Johnson Department of Ocular Surface and Visual Optics, the 2Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; and
| | | | - Kazuo Tsubota
- the Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; and
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Ward SK, Wakamatsu TH, Dogru M, Ibrahim OMA, Kaido M, Ogawa Y, Matsumoto Y, Igarashi A, Ishida R, Shimazaki J, Schnider C, Negishi K, Katakami C, Tsubota K. The role of oxidative stress and inflammation in conjunctivochalasis. Invest Ophthalmol Vis Sci 2009; 51:1994-2002. [PMID: 20019361 DOI: 10.1167/iovs.09-4130] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose. To investigate the status of oxidative stress and histopathologic alterations in patients with conjunctivochalasis and compare the findings with those in healthy control subjects. Methods. Eleven patients (n = 20 eyes) with Yokoi grade 3 conjunctivochalasis and 11 health control subjects (n = 22 eyes) were prospectively recruited. ELISA for tear hexanoyl-lysine (HEL) and inflammatory cytokines, tear film break-up time tests, Schirmer test measurements, and fluorescein and rose bengal vital staining were performed. Conjunctival specimens obtained during surgery for conjunctivochalasis and cataract underwent immunohistochemical staining for HEL+8-OHdG, MMP-3, and MMP-9, and positively stained cells were counted. Transmission electron microscopy was also performed, with staining for elastic fibers in the conjunctival stroma. Results. The mean tear stability and vital staining scores were significantly worse in the conjunctivochalasis patients than in the control subjects. The tear HEL and tear cytokine levels showed significantly higher values in eyes with conjunctivochalasis. IL-1beta and IL-6 levels showed a significant correlation with corneal epithelial damage. IL-1beta and TNFalpha showed a significant correlation with 8-OHdG-stained cell counts. Specimens from patients with conjunctivochalasis revealed a significantly higher number of cells positively stained for HEL, 8-OHdG, MMP-3, and MMP-9 than did specimens from age- and sex-matched control subjects. Transmission electron microscopy showed decreased intercellular cohesiveness, with the conjunctival stroma showing an accumulation of elastic fibers. Conclusions. Lipid and DNA oxidative stress were present in the conjunctiva. Increased tear inflammation seemed to coexist with loss of conjunctival epithelial cohesiveness and increased collagenolytic activity, which may explain the conjunctival laxity observed in patients with conjunctivochalasis.
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Affiliation(s)
- Samantha K Ward
- Keio University School of Medicine, Johnson & Johnson Ocular Surface and Visual Optics Department, Tokyo, Japan
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Okado H, Ohtaka-Maruyama C, Sugitani Y, Fukuda Y, Ishida R, Hirai S, Miwa A, Takahashi A, Aoki K, Mochida K, Suzuki O, Honda T, Nakajima K, Ogawa M, Terashima T, Matsuda J, Kawano H, Kasai M. The transcriptional repressor RP58 is crucial for cell-division patterning and neuronal survival in the developing cortex. Dev Biol 2009; 331:140-51. [PMID: 19409883 DOI: 10.1016/j.ydbio.2009.04.030] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2008] [Revised: 04/01/2009] [Accepted: 04/24/2009] [Indexed: 12/20/2022]
Abstract
The neocortex and the hippocampus comprise several specific layers containing distinct neurons that originate from progenitors at specific development times, under the control of an adequate cell-division patterning mechanism. Although many molecules are known to regulate this cell-division patterning process, its details are not well understood. Here, we show that, in the developing cerebral cortex, the RP58 transcription repressor protein was expressed both in postmitotic glutamatergic projection neurons and in their progenitor cells, but not in GABAergic interneurons. Targeted deletion of the RP58 gene led to dysplasia of the neocortex and of the hippocampus, reduction of the number of mature cortical neurons, and defects of laminar organization, which reflect abnormal neuronal migration within the cortical plate. We demonstrate an impairment of the cell-division patterning during the late embryonic stage and an enhancement of apoptosis of the postmitotic neurons in the RP58-deficient cortex. These results suggest that RP58 controls cell division of progenitor cells and regulates the survival of postmitotic cortical neurons.
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Affiliation(s)
- Haruo Okado
- Department of Molecular Physiology, Tokyo Metropolitan Institute for Neuroscience, Musashidai, Fuchu, Japan.
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Kaido M, Ishida R, Dogru M, Tsubota K. A new punctal plug insertion technique to prevent intracanalicular plug migration. Am J Ophthalmol 2009; 147:178-182.e1. [PMID: 18775526 DOI: 10.1016/j.ajo.2008.07.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2008] [Revised: 07/03/2008] [Accepted: 07/03/2008] [Indexed: 11/17/2022]
Abstract
PURPOSE To evaluate the intracanalicular migration rate during plug insertion with a new plug insertion technique compared with a standard technique. DESIGN Interventional, nonrandomized, comparative study. METHOD Forty-five patients with dry eye syndrome underwent a punctal plug insertion with the new technique, and 33 patients underwent a punctal plug insertion with a standard technique at the dry eye subspecialty outpatient clinic of the Department of Ophthalmology at Keio University. Tear function examinations and ocular surface evaluations, including the Schirmer test, tear film breakup time, fluorescein and Rose Bengal vital staining scores, were performed before punctal plug insertion. Super Flex Punctum Plugs (Eagle Vision, Memphis, Tennessee, USA; Softplug-Oasis Medical Inc, Glendora, California, USA) were implanted in all subjects with both techniques. In total, 120 procedures were carried out with the new technique and 132 procedures with the standard technique. RESULTS There were no statistical differences between the two groups in tear function and ocular surface staining scores (P > .05). There was no intracanalicular plug migration with the new insertion technique, whereas there were 18 incidents of intracanalicular migration of 132 standard plug insertion procedures (13.6%). CONCLUSIONS The new plug insertion technique seems to be effective in eliminating intracanalicular plug migration during the insertion procedure.
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Affiliation(s)
- Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
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Ishida R. O67 Problems of arthritis in rural Nepal, (preliminary report from International Medical Cooperation). Indian Journal of Rheumatology 2008. [DOI: 10.1016/s0973-3698(10)60441-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Fukuda Y, Ishida R, Aoki K, Nakahara K, Takashi T, Mochida K, Suzuki O, Matsuda J, Kasai M. Contribution of Translin to Hematopoietic Regeneration after Sublethal Ionizing Irradiation. Biol Pharm Bull 2008; 31:207-11. [DOI: 10.1248/bpb.31.207] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yuko Fukuda
- Department of Immunology, National Institute of Infectious Diseases
| | - Reiko Ishida
- Department of Immunology, National Institute of Infectious Diseases
| | - Katsunori Aoki
- Department of Hematology, (Internal Medicine), The University of Tokyo
| | | | - Tohru Takashi
- New Product Research Laboratories III, Tokyo R&D Center, Daiichi Pharmaceutical Co., Ltd
| | | | - Osamu Suzuki
- Department of Veterinary Science, National Institute of Infectious Diseases
| | - Junichiro Matsuda
- Department of Veterinary Science, National Institute of Infectious Diseases
| | - Masataka Kasai
- Department of Immunology, National Institute of Infectious Diseases
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Abstract
Functional visual acuity (FVA) has been suggested to reflect an individual's performance in relation to certain daily activities involving visual tasks. The concept of FVA has been thought applicable to the detection of masked impairment of visual function in patients with dry eye who complain of decreased visual acuity despite normal conventional visual acuity. A stable tear-film layer over the surface of the cornea is essential for a smooth ocular surface and the formation of clear visual images. In dry eye, the ocular surface tends to dry out when normal blinking is suppressed during gazing, and patients with dry eye may have problems maintaining clear vision while gazing. The FVA measurement system is a device to measure changes in continuous visual acuity over time. Visual maintenance ratio (VMR) is the ratio between FVA and baseline visual acuity. FVA and VMR are indices for the assessment of functional vision. FVA has been thought applicable to the detection of changes in functional vision in relation to the tear film over the ocular surface. It may also be useful for the assessment of subjective visual complaints in diseases that do not involve dry eye.
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Affiliation(s)
- Minako Kaido
- Department of Ophthalmology, Keio University School of Medicine, Shinanomachi 25, Shinjuku-ku, Tokyo 160-8582, Japan.
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Goto E, Matsumoto Y, Kamoi M, Endo K, Ishida R, Dogru M, Kaido M, Kojima T, Tsubota K. Tear evaporation rates in Sjögren syndrome and non-Sjögren dry eye patients. Am J Ophthalmol 2007; 144:81-85. [PMID: 17509507 DOI: 10.1016/j.ajo.2007.03.055] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2006] [Revised: 03/21/2007] [Accepted: 03/30/2007] [Indexed: 11/30/2022]
Abstract
PURPOSE To reinvestigate tear evaporation rates in Sjögren syndrome (SS) and non-Sjögren (non-SS) dry eye patients with a recently reported ventilated chamber evaporimeter system. DESIGN Prospective case-control study. METHODS A ventilated chamber evaporimeter system was used to measure tear evaporation rates. A DR-1 camera (Kowa, Nagoya, Japan) was used for tear lipid layer interference image acquisition. The Yokoi severity grading system was used for DR-1 image evaluation. Twenty-four aqueous tear deficiency (ATD) eyes of 21 consecutive patients with SS were studied (SS ATD group). Twenty-one ATD eyes of 12 non-SS patients (non-SS ATD group) were examined as control subjects. RESULTS Tear evaporation rates of the SS ATD group (5.9 +/- 3.5 [10(-7) g/cm(2) per second]) were significantly higher than those of the non-SS ATD group (2.9 +/- 1.8 [10(-7) g/cm(2) per second]; P = .0009). The severity grading of DR-1 tear interference images of the SS ATD group was significantly higher (P = .03), along with significantly worse meibomian gland expressibility and vital staining scores, compared with those of the non-SS ATD group. CONCLUSIONS Tear evaporation rates were higher in eyes of the SS ATD group compared with the non-SS ATD group. Tear evaporation assessed in conjunction with tear lipid layer findings and meibomian gland expressibility provides an increased understanding in the differential diagnosis of dry eye states.
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Affiliation(s)
- Eiki Goto
- Department of Ophthalmology, School of Dental Medicine, Tsurumi University, Yokohama, Japan
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Matsumoto Y, Dogru M, Goto E, Ishida R, Kojima T, Onguchi T, Yagi Y, Shimazaki J, Tsubota K. Efficacy of a new warm moist air device on tear functions of patients with simple meibomian gland dysfunction. Cornea 2007; 25:644-50. [PMID: 17077654 DOI: 10.1097/01.ico.0000208822.70732.25] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To evaluate the safety and efficacy of an original warm moist air device on tear functions and ocular surface of patients with simple meibomian gland dysfunction (MGD). METHODS Fifteen patients with simple MGD and 20 healthy volunteers were recruited in an initial prospective interventional clinical trial to evaluate the safety and short-term effects of the warm moist air device. The device was applied to the eyes of the subjects for 10 minutes. Temperatures of the eye lids and corneas were measured with an infrared thermometer. Symptoms of ocular fatigue were scored using visual analog scales (VASs). Schirmer test, tear film break-up time (BUT), DR-1 tear film lipid layer interferometry, fluorescein staining, and rose bengal staining were also performed before and after the application of the eye steamer. After the initial study, another 2-week prospective clinical trial was carried out in 10 patients with MGD who received the warm moist air treatment. Ten other patients were also recruited and received warm compress treatment with hot towels for 2 weeks to evaluate the long-term effects of the warm moist air device and the warm compresses on tear film lipid layer thickness and ocular surface health. The warm moist air device and the warm compresses were applied for 10 minutes twice a day. The changes in VAS scores for symptoms, BUT values, fluorescein, and rose bengal staining scores were examined before and after each treatment during the second trial. RESULTS VAS scores of ocular fatigue improved significantly with short- and long-term applications of the warm moist air device in both studies. The mean corneal surface and eye lid temperatures showed significant elevation within safe limits 10 minutes after the moist air application. The mean BUT prolonged significantly in the patients receiving warm moist air applications but did not change significantly in those treated with warm compresses. DR-1 tear film lipid layer interference showed evidence of lipid expression in the patients and controls, with thickening of the tear film lipid layer after 10 minutes of warm moist air device use. In the 2-week trial, tear film lipid layer thickness increased in both warm moist air device and warm compress groups, with a greater extent of increase in the warm moist air device group. CONCLUSION Warm moist air device use provided symptomatic relief of ocular fatigue and improvement of tear stability in patients with MGD. The new warm moist air device seems to be a safe and promising alternative in the treatment of MGD.
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Kojima T, Dogru M, Ishida R, Goto E, Matsumoto Y, Tsubota K. Clinical evaluation of the Smart Plug in the treatment of dry eyes. Am J Ophthalmol 2006; 141:386-8. [PMID: 16458703 DOI: 10.1016/j.ajo.2005.08.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2005] [Revised: 08/14/2005] [Accepted: 08/15/2005] [Indexed: 11/28/2022]
Abstract
PURPOSE To evaluate the efficacy of a thermo sensitive punctum plug, the Smart Plug, in the treatment of dry eyes. DESIGN Observational case-series study. METHODS Eighteen eyes of 10 dry eye patients who previously failed conventional plug insertion were enrolled. Schirmer 1 test, vital staining scores, and tear clearance tests were performed before plug insertion, at 2 weeks, 1 month, and 3 months after insertion. RESULTS Although Schirmer test values were not significantly different before and after plug insertion, the tear clearance rate considerably decreased (Before insertion: 14.8+/-11.4; After insertion: 8.2+/-6.6) (P<.05). Rose-Bengal and fluorescein scores improved significantly after plug insertion (Rose-Bengal: Before insertion: 6.4+/-2.0; After insertion: 3.3+/-1.6 points, Fluorescein: Before insertion: 4.8+/-2.3; After insertion: 2.1+/-1.3) (P<.05). No complications were observed. CONCLUSIONS Smart Plug proved to be a safe and efficient option in the treatment of dry eye.
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Affiliation(s)
- Takashi Kojima
- Department of Ophthalmology, Keio University, Tokyo, Japan.
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Maeda S, Kita F, Miyawaki T, Takeuchi K, Ishida R, Egusa M, Shimada M. Assessment of patients with intellectual disability using the International Classification of Functioning, Disability and Health to evaluate dental treatment tolerability. J Intellect Disabil Res 2005; 49:253-259. [PMID: 15816812 DOI: 10.1111/j.1365-2788.2005.00644.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
BACKGROUND Patients with serious intellectual disability (ID) are occasionally unable to tolerate dental treatment when intravenous sedation or general anaesthesia (IVS/GA) is involved. In order to make a decision regarding the application of IVS/GA, the International Classification of Functioning, Disability and Health (ICF) is useful. Therefore, in this study, a set of codes involved in dental problems were chosen from the ICF, and patients with ID who could tolerate dental treatments were compared with those who could not. METHODS From preliminary interviews of six patients with ID, 16 codes were chosen, and an objective five-rank scale was then constructed for use with all chosen codes. Forty-nine ID patients who visited the Okayama University Hospital for dental treatment between January and April 2003 were evaluated. Facility workers were interviewed according to the code set chosen. The participants were then divided into two subgroups depending on their tolerability of dental treatment. The results of these groups for all 16 codes were then compared. RESULTS Of the 49 patients interviewed, 23 were able to tolerate the dental treatment. In the 'Activities & Participation' section of the ICF, the tolerable group showed lower disability levels with regard to d110 Watching, d540 Dressing and d550 Eating. In other sections, there were no significant differences between the groups. The code set chosen in this study and the five-rank scales in each code were useful as they enabled easy interviewing. CONCLUSIONS The ICF was raised as a possibility for considering the application of IVS/GA for dental treatment on patients with ID. For clinical use of the ICF, it is recommended that significant codes should be selected and that the five-rank scale is used so that more objective results are obtained from interviews.
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Affiliation(s)
- S Maeda
- Department of Dental Anesthesiology, Okayama University Hospital, Okayama, Japan.
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Kojima T, Ishida R, Dogru M, Goto E, Matsumoto Y, Kaido M, Tsubota K. The effect of autologous serum eyedrops in the treatment of severe dry eye disease: a prospective randomized case-control study. Am J Ophthalmol 2005; 139:242-6. [PMID: 15733983 DOI: 10.1016/j.ajo.2004.08.040] [Citation(s) in RCA: 149] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2004] [Indexed: 10/25/2022]
Abstract
PURPOSE To evaluate the effectiveness of the autologous serum eyedrops in the treatment of severe dry eye patients. DESIGN Prospective randomized case-control study. METHODS Thirty-seven eyes of twenty severe dry eye patients without punctal occlusion were enrolled in this study. After 2 weeks of washout, they were randomly assigned to two groups. Group A patients used only preservative-free artificial tears, and group S patients used only autologous serum eyedrops. We evaluated the results of Schirmer test, fluorescein and rose bengal staining scores, tear film breakup time (BUT), and subjective symptom scores before and 2 weeks after treatment. RESULTS Mean BUT and fluorescein and rose bengal staining scores, as well as subjective symptom scores, showed significant improvement in the patients assigned to autologous serum eyedrops compared with subjects assigned to preservative-free artificial tears after 2 weeks of treatment. CONCLUSIONS Autologous serum eyedrops were found effective in the treatment of severe dry eye disease, as evidenced by improvement of tear stability and ocular surface vital staining scores.
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Affiliation(s)
- Takashi Kojima
- Department of Ophthalmology, Social Insurance Chukyo Hospital, Aichi, Japan.
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Ishida R, Kojima T, Dogru M, Kaido M, Matsumoto Y, Tanaka M, Goto E, Tsubota K. The application of a new continuous functional visual acuity measurement system in dry eye syndromes. Am J Ophthalmol 2005; 139:253-8. [PMID: 15733985 DOI: 10.1016/j.ajo.2004.08.075] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2004] [Indexed: 11/18/2022]
Abstract
PURPOSE To evaluate the efficacy of a new continuous functional visual acuity measurement (FVAM) system for the assessment of dry eye patients. DESIGN Prospective comparative study. METHODS Monocular recognition acuity measured continuously by the FVAM system during a 30-second blink-free period was defined as functional visual acuity (FVA). Examinations using the FVAM system were conducted in 35 eyes of 20 healthy controls and 19 eyes of 13 dry eye patients. Tear function examinations including the Schirmer test, tear film break-up time, and fluorescein and Rose Bengal staining were performed in all subjects. Functional visual acuity and tear functions were also examined before and after insertion of punctum plugs in dry eye patients. Functional visual acuity results at 10, 20, and 30 seconds were compared. RESULTS Functional visual acuity in dry eyes were significantly lower than control subjects at all time points (P < .05). Functional visual acuity after punctum plugs insertion improved significantly at all time points (P < .05). CONCLUSIONS FVAM system seemed not only to be an effective tool in the assessment of dynamic visual acuity changes in dry eye and normal subjects but in evaluating the outcome of management of dry eye disease by punctum plugs.
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Affiliation(s)
- Reiko Ishida
- Department of Ophthalmology, Tokyo Dental College, Chiba 272-8513, Japan
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Matsumoto Y, Dogru M, Goto E, Ishida R, Kojima T, Onguchi T, Yagi Y, Shimazaki J, Tsubota K. The Efficacy of a new Eye Steamer Device on Tear Functions of Patients with Obstructive Meibomian Gland Disease. Ocul Surf 2005. [DOI: 10.1016/s1542-0124(12)70490-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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