1
|
Nagai K, Akimoto J, Fukami S, Saito Y, Ogawa E, Takanashi M, Kuroda M, Kohno M. Efficacy of interstitial photodynamic therapy using talaporfin sodium and a semiconductor laser for a mouse allograft glioma model. Sci Rep 2024; 14:9137. [PMID: 38644422 PMCID: PMC11033255 DOI: 10.1038/s41598-024-59955-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 04/17/2024] [Indexed: 04/23/2024] Open
Abstract
To investigate the therapeutic potential of photodynamic therapy (PDT) for malignant gliomas arising in unresectable sites, we investigated the effect of tumor tissue damage by interstitial PDT (i-PDT) using talaporfin sodium (TPS) in a mouse glioma model in which C6 glioma cells were implanted subcutaneously. A kinetic study of TPS demonstrated that a dose of 10 mg/kg and 90 min after administration was appropriate dose and timing for i-PDT. Performing i-PDT using a small-diameter plastic optical fiber demonstrated that an irradiation energy density of 100 J/cm2 or higher was required to achieve therapeutic effects over the entire tumor tissue. The tissue damage induced apoptosis in the area close to the light source, whereas vascular effects, such as fibrin thrombus formation occurred in the area slightly distant from the light source. Furthermore, when irradiating at the same energy density, irradiation at a lower power density for a longer period of time was more effective than irradiation at a higher power density for a shorter time. When performing i-PDT, it is important to consider the rate of delivery of the irradiation light into the tumor tissue and to set irradiation conditions that achieve an optimal balance between cytotoxic and vascular effects.
Collapse
Affiliation(s)
- Kenta Nagai
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Jiro Akimoto
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan.
| | - Shinjiro Fukami
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Yuki Saito
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Emiyu Ogawa
- Faculty of Science and Technology, Keio University, Kanagawa, Japan
| | | | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Michihiro Kohno
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| |
Collapse
|
2
|
Yokomizo S, Kopp T, Roessing M, Morita A, Lee S, Cho S, Ogawa E, Komai E, Inoue K, Fukushi M, Feil S, Kim HH, Bragin DE, Gerashchenko D, Huang PL, Kashiwagi S, Atochin DN. Near-Infrared II Photobiomodulation Preconditioning Ameliorates Stroke Injury via Phosphorylation of eNOS. Stroke 2024. [PMID: 38572660 DOI: 10.1161/strokeaha.123.045358] [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] [Received: 06/18/2023] [Accepted: 02/28/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND The current management of patients with stroke with intravenous thrombolysis and endovascular thrombectomy is effective only when it is timely performed on an appropriately selected but minor fraction of patients. The development of novel adjunctive therapy is highly desired to reduce morbidity and mortality with stroke. Since endothelial dysfunction is implicated in the pathogenesis of stroke and is featured with suppressed endothelial nitric oxide synthase (eNOS) with concomitant nitric oxide deficiency, restoring endothelial nitric oxide represents a promising approach to treating stroke injury. METHODS This is a preclinical proof-of-concept study to determine the therapeutic effect of transcranial treatment with a low-power near-infrared laser in a mouse model of ischemic stroke. The laser treatment was performed before the middle cerebral artery occlusion with a filament. To determine the involvement of eNOS phosphorylation, unphosphorylatable eNOS S1176A knock-in mice were used. Each measurement was analyzed by a 2-way ANOVA to assess the effect of the treatment on cerebral blood flow with laser Doppler flowmetry, eNOS phosphorylation by immunoblot analysis, and stroke outcomes by infarct volumes and neurological deficits. RESULTS Pretreatment with a 1064-nm laser at an irradiance of 50 mW/cm2 improved cerebral blood flow, eNOS phosphorylation, and stroke outcomes. CONCLUSIONS Near-infrared II photobiomodulation could offer a noninvasive and low-risk adjunctive therapy for stroke injury. This new modality using a physical parameter merits further consideration to develop innovative therapies to prevent and treat a wide array of cardiovascular diseases.
Collapse
Affiliation(s)
- Shinya Yokomizo
- Department of Neurology, MassGeneral Institute of Neurodegenerative Diseases, Massachusetts General Hospital and Harvard Medical School, Charlestown. (S.Y.)
- Department of Radiological Science, Tokyo Metropolitan University, Japan (S.Y., K.I., M.F.)
| | - Timo Kopp
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown. (T.K., M.R., A.M., E.K., P.L.H., D.N.A.)
- Interfaculty Institute of Biochemistry, University of Tübingen, Germany (T.K., M.R., S.F.)
| | - Malte Roessing
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown. (T.K., M.R., A.M., E.K., P.L.H., D.N.A.)
- Interfaculty Institute of Biochemistry, University of Tübingen, Germany (T.K., M.R., S.F.)
| | - Atsuyo Morita
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown. (T.K., M.R., A.M., E.K., P.L.H., D.N.A.)
| | - Seeun Lee
- Stroke and Neurovascular Regulation Laboratory, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown (S.L., S.C., H.-H.K.)
- School of Korean Medicine, Pusan National University, Yangsan, Republic of Korea (S.L., S.C.)
| | - Suin Cho
- Stroke and Neurovascular Regulation Laboratory, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown (S.L., S.C., H.-H.K.)
- School of Korean Medicine, Pusan National University, Yangsan, Republic of Korea (S.L., S.C.)
| | - Emiyu Ogawa
- School of Allied Health Science, Kitasato University, Kanagawa, Japan (E.O.)
| | - Eri Komai
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown. (T.K., M.R., A.M., E.K., P.L.H., D.N.A.)
| | - Kazumasa Inoue
- Department of Radiological Science, Tokyo Metropolitan University, Japan (S.Y., K.I., M.F.)
| | - Masahiro Fukushi
- Department of Radiological Science, Tokyo Metropolitan University, Japan (S.Y., K.I., M.F.)
| | - Susanne Feil
- Interfaculty Institute of Biochemistry, University of Tübingen, Germany (T.K., M.R., S.F.)
| | - Hyung-Hwan Kim
- Stroke and Neurovascular Regulation Laboratory, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown (S.L., S.C., H.-H.K.)
| | - Denis E Bragin
- Lovelace Biomedical Research Institute, Albuquerque, NM (D.E.B.)
- Department of Neurology, The University of New Mexico School of Medicine, Albuquerque, NM (D.E.B.)
| | - Dmitry Gerashchenko
- Department of Psychiatry, Boston VA Medical Center West Roxbury, Veterans Affairs Boston Healthcare System and Harvard Medical School, MA (D.G., S.K., D.N.A.)
| | - Paul L Huang
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown. (T.K., M.R., A.M., E.K., P.L.H., D.N.A.)
| | - Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown. (S.K.)
- Department of Psychiatry, Boston VA Medical Center West Roxbury, Veterans Affairs Boston Healthcare System and Harvard Medical School, MA (D.G., S.K., D.N.A.)
| | - Dmitriy N Atochin
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown. (T.K., M.R., A.M., E.K., P.L.H., D.N.A.)
- Department of Psychiatry, Boston VA Medical Center West Roxbury, Veterans Affairs Boston Healthcare System and Harvard Medical School, MA (D.G., S.K., D.N.A.)
| |
Collapse
|
3
|
Kawakami S, Ogawa E, Fukaya H, Matsuura G, Aiga S, Kumagai H. Estimation of mechanical properties by transcatheter monitoring using local impedance and contact force. J Med Eng Technol 2023; 47:141-146. [PMID: 36426804 DOI: 10.1080/03091902.2022.2134479] [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: 11/26/2022]
Abstract
The mechanical properties of the myocardium in the left ventricle and right atrium were estimated by simultaneously measuring the local impedance (LI) and contact force (CF) using an ablation catheter. Radiofrequency catheter ablation (RFCA) is a well-established arrhythmia treatment. Monitoring the RF power, CF and properties of myocardium during RFCA are necessary to estimate the effect of ablation. Indices, such as CF, lesion size index and ablation index, do not include the myocardium mechanical properties. Therefore, there is the risk of side effects, such as cardiac tamponade, by excessive catheter indentation into vulnerable areas. We propose the simultaneous measurement of LI and CF for estimating the myocardial mechanical properties to reduce the side effects. In this study, an in vitro experimental system was constructed to measure LI and CF via the catheter. The relationship between the porcine myocardial tissue thickness and CF-LI curve was investigated using the left ventricle and right atrium. Power function coefficients approximating the CF-LI curve increased with thicker left ventricle. The thickness of the myocardium can be estimated by simultaneously measuring LI and CF. Intraoperative measurement of the myocardial mechanical properties can be used to determine the ablation conditions at each site.
Collapse
Affiliation(s)
- Sota Kawakami
- Graduate School of Medical Sciences, Kitasato University, Kanagawa, Japan
| | - Emiyu Ogawa
- Graduate School of Medical Sciences, Kitasato University, Kanagawa, Japan.,Allied Health Sciences, Kitasato University, Kanagawa, Japan
| | - Hidehira Fukaya
- Department of Cardiovascular Medicine, Kitasato University Hospital, Kanagawa, Japan
| | - Gen Matsuura
- Department of Cardiovascular Medicine, Kitasato University Hospital, Kanagawa, Japan
| | - Sumire Aiga
- Allied Health Sciences, Kitasato University, Kanagawa, Japan
| | - Hiroshi Kumagai
- Graduate School of Medical Sciences, Kitasato University, Kanagawa, Japan.,Allied Health Sciences, Kitasato University, Kanagawa, Japan
| |
Collapse
|
4
|
Kashiwagi S, Morita A, Yokomizo S, Ogawa E, Komai E, Huang PL, Bragin DE, Atochin DN. Photobiomodulation and nitric oxide signaling. Nitric Oxide 2023; 130:58-68. [PMID: 36462596 PMCID: PMC9808891 DOI: 10.1016/j.niox.2022.11.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/05/2022] [Accepted: 11/27/2022] [Indexed: 12/05/2022]
Abstract
Nitric oxide (NO) is a well-known gaseous mediator that maintains vascular homeostasis. Extensive evidence supports that a hallmark of endothelial dysfunction, which leads to cardiovascular diseases, is endothelial NO deficiency. Thus, restoring endothelial NO represents a promising approach to treating cardiovascular complications. Despite many therapeutic agents having been shown to augment NO bioavailability under various pathological conditions, success in resulting clinical trials has remained elusive. There is solid evidence of diverse beneficial effects of the treatment with low-power near-infrared (NIR) light, defined as photobiomodulation (PBM). Although the precise mechanisms of action of PBM are still elusive, recent studies consistently report that PBM improves endothelial dysfunction via increasing bioavailable NO in a dose-dependent manner and open a feasible path to the use of PBM for treating cardiovascular diseases via augmenting NO bioavailability. In particular, the use of NIR light in the NIR-II window (1000-1700 nm) for PBM, which has reduced scattering and minimal tissue absorption with the largest penetration depth, is emerging as a promising therapy. In this review, we update recent findings on PBM and NO.
Collapse
Affiliation(s)
- Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA, 02129, USA.
| | - Atsuyo Morita
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13th Street, Charlestown, MA, 02129, USA
| | - Shinya Yokomizo
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA, 02129, USA; Department of Radiological Science, Tokyo Metropolitan University, 7-2-10 Higashi-Ogu, Arakawa, Tokyo, 116-8551, Japan
| | - Emiyu Ogawa
- School of Allied Health Science, Kitasato University, 1-15-1 Kitasato Minami-ku Sagamihara, Kanagawa, Japan
| | - Eri Komai
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13th Street, Charlestown, MA, 02129, USA
| | - Paul L Huang
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13th Street, Charlestown, MA, 02129, USA
| | - Denis E Bragin
- Lovelace Biomedical Research Institute, 2425 Ridgecrest Dr. SE, Albuquerque, NM, 87108, USA; Department of Neurology, The University of New Mexico School of Medicine, MSC08 4720, 1 UNM, Albuquerque, NM, 87131, USA.
| | - Dmitriy N Atochin
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13th Street, Charlestown, MA, 02129, USA.
| |
Collapse
|
5
|
Katagiri W, Yokomizo S, Ishizuka T, Yamashita K, Kopp T, Roessing M, Sato A, Iwasaki T, Sato H, Fukuda T, Monaco H, Manganiello S, Nomura S, Ng MR, Feil S, Ogawa E, Fukumura D, Atochin DN, Choi HS, Kashiwagi S. Dual near-infrared II laser modulates the cellular redox state of T cells and augments the efficacy of cancer immunotherapy. FASEB J 2022; 36:e22521. [PMID: 36052742 PMCID: PMC9574655 DOI: 10.1096/fj.202200033r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 07/27/2022] [Accepted: 08/15/2022] [Indexed: 11/11/2022]
Abstract
Immunotherapy, including immune checkpoint inhibitors, has revolutionized cancer treatment, but only a minor fraction of patients shows durable responses. A new approach to overcome this limitation is yet to be identified. Recently, we have shown that photobiomodulation (PBM) with near-infrared (NIR) light in the NIR-II window reduces oxidative stress and supports the proliferation of CD8+ T cells, suggesting that PBM with NIR-II light could augment anti-cancer immunity. Here, we report a novel approach to support tumor-infiltrating CD8+ T cells upon PBM with NIR-II laser with high tissue penetration depth. Brief treatments of a murine model of breast cancer with dual 1064 and 1270 nm lasers reduced the expression of the programmed cell death protein 1 (PD-1) in CD8+ T cells in a syngeneic mouse model of breast cancer. The direct effect of the NIR-II laser treatment on T cells was confirmed by the enhanced tumor growth delay by the adoptive transfer of laser-treated CD8+ T cells ex vivo against a model tumor antigen. We further demonstrated that specific NIR-II laser parameters augmented the effect of the immune checkpoint inhibitor on tumor growth. PBM with NIR-II light augments the efficacy of cancer immunotherapy by supporting CD8+ T cells. Unlike the current immunotherapy with risks of undesirable drug-drug interactions and severe adverse events, the laser is safe and low-cost. It can be broadly combined with other therapy without modification to achieve clinical significance. In addition, our study established a path to develop a novel laser-based therapy to treat cancer effectively.
Collapse
Affiliation(s)
- Wataru Katagiri
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
- Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama, Kanagawa 223-8522, Japan
| | - Shinya Yokomizo
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
- Department of Radiological Science, Tokyo Metropolitan University, 7-2-10 Higashi-Ogu, Arakawa, Tokyo 116-8551, Japan
| | - Takanobu Ishizuka
- Bioresearch Center, Corporate R&D Center, Terumo Corporation, 1500 Inokuchi, Nakai-machi, Ashigarakami-gun, Kanagawa 259-0151, Japan
- Corporate R&D Center, Terumo Corporation, 1500 Inokuchi, Nakai-machi, Ashigarakami-gun, Kanagawa 259-0151, Japan
| | - Keiko Yamashita
- Corporate R&D Center, Terumo Corporation, 1500 Inokuchi, Nakai-machi, Ashigarakami-gun, Kanagawa 259-0151, Japan
| | - Timo Kopp
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Auf der Morgenstelle 34, Tübingen 72076, Germany
| | - Malte Roessing
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Auf der Morgenstelle 34, Tübingen 72076, Germany
| | - Akiko Sato
- Bioresearch Center, Corporate R&D Center, Terumo Corporation, 1500 Inokuchi, Nakai-machi, Ashigarakami-gun, Kanagawa 259-0151, Japan
| | - Taizo Iwasaki
- Bioresearch Center, Corporate R&D Center, Terumo Corporation, 1500 Inokuchi, Nakai-machi, Ashigarakami-gun, Kanagawa 259-0151, Japan
| | - Hideki Sato
- Bioresearch Center, Corporate R&D Center, Terumo Corporation, 1500 Inokuchi, Nakai-machi, Ashigarakami-gun, Kanagawa 259-0151, Japan
| | - Takeshi Fukuda
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Hailey Monaco
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Sophia Manganiello
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Shinsuke Nomura
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
- Department of Surgery, Faculty of Medicine, University of Miyazaki Hospital, 5200 Kihara, Kiyotake, Miyazaki, Miyazaki 889-1692, Japan
| | - Mei Rosa Ng
- Edwin L. Steele Laboratory for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Susanne Feil
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Auf der Morgenstelle 34, Tübingen 72076, Germany
| | - Emiyu Ogawa
- School of Allied Health Science, Kitasato University, 1-15-1 Kitasato Minami-ku Sagamihara, Kanagawa, Japan
| | - Dai Fukumura
- Edwin L. Steele Laboratory for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Dmitriy N. Atochin
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA, 02129, United States of America
| | - Hak Soo Choi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| |
Collapse
|
6
|
Yokomizo S, Roessing M, Morita A, Kopp T, Ogawa E, Katagiri W, Feil S, Huang PL, Atochin DN, Kashiwagi S. Near-infrared II photobiomodulation augments nitric oxide bioavailability via phosphorylation of endothelial nitric oxide synthase. FASEB J 2022; 36:e22490. [PMID: 35929438 PMCID: PMC9382775 DOI: 10.1096/fj.202101890r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 07/05/2022] [Accepted: 07/25/2022] [Indexed: 11/11/2022]
Abstract
There is solid evidence of the beneficial effect of photobiomodulation (PBM) with low-power near-infrared (NIR) light in the NIR-I window in increasing bioavailable nitric oxide (NO). However, it is not established whether this effect can be extended to NIR-II light, limiting broader applications of this therapeutic modality. Since we have demonstrated PBM with NIR laser in the NIR-II window, we determined the causal relationship between NIR-II irradiation and its specific biological effects on NO bioavailability. We analyzed the impact of NIR-II irradiation on NO release in cultured human endothelial cells using a NO-sensitive fluorescence probe and single-cell live imaging. Two distinct wavelengths of NIR-II laser (1064 and 1270 nm) and NIR-I (808 nm) at an irradiance of 10 mW/cm2 induced NO release from endothelial cells. These lasers also enhanced Akt phosphorylation at Ser 473, endothelial nitric oxide synthase (eNOS) phosphorylation at Ser 1177, and endothelial cell migration. Moreover, the NO release and phosphorylation of eNOS were abolished by inhibiting mitochondrial respiration, suggesting that Akt activation caused by NIR-II laser exposure involves mitochondrial retrograde signaling. Other inhibitors that inhibit known Akt activation pathways, including a specific inhibitor of PI3K, Src family PKC, did not affect this response. These two wavelengths of NIR-II laser induced no appreciable NO generation in cultured neuronal cells expressing neuronal NOS (nNOS). In short, NIR-II laser enhances bioavailable NO in endothelial cells. Since a hallmark of endothelial dysfunction is suppressed eNOS with concomitant NO deficiency, NIR-II laser technology could be broadly used to restore endothelial NO and treat or prevent cardiovascular diseases.
Collapse
Affiliation(s)
- Shinya Yokomizo
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA, 02129, USA
- Department of Radiological Science, Tokyo Metropolitan University, 7-2-10 Higashi-Ogu, Arakawa, Tokyo 116-8551, Japan
| | - Malte Roessing
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Auf der Morgenstelle 34, Tübingen 72076, Germany
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Atsuyo Morita
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Timo Kopp
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Auf der Morgenstelle 34, Tübingen 72076, Germany
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Emiyu Ogawa
- School of Allied Health Science, Kitasato University, 1-15-1 Kitasato Minami-ku Sagamihara, Kanagawa, Japan
| | - Wataru Katagiri
- Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Susanne Feil
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Auf der Morgenstelle 34, Tübingen 72076, Germany
| | - Paul L. Huang
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Dmitriy N. Atochin
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, 149 13 Street, Charlestown, MA 02129, USA
| | - Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13 Street, Charlestown, MA, 02129, USA
| |
Collapse
|
7
|
Matsuura G, Fukaya H, Ogawa E, Kawakami S, Mori H, Saito D, Sato T, Nakamura H, Ishizue N, Oikawa J, Kishihara J, Niwano S, Ako J. Catheter contact angle influences local impedance drop during radiofrequency catheter ablation: Insight from a porcine experimental study with 2 different LI-sensing catheters. J Cardiovasc Electrophysiol 2022; 33:380-388. [PMID: 35018687 DOI: 10.1111/jce.15356] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/23/2021] [Accepted: 01/01/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Local impedance (LI) can indirectly measure catheter contact and tissue temperature during radiofrequency catheter ablation (RFCA). However, data on the effects of catheter contact angle on LI parameters are scarce. This study aimed to evaluate the influence of catheter contact angle on LI changes and lesion size with 2 different LI-sensing catheters in a porcine experimental study. METHODS Lesions were created by the INTELLANAV MiFi™ OI (MiFi) and the INTELLANAV STABLEPOINT™ (STABLEPOINT). RFCA was performed with 30 watts and a duration of 30 seconds. The CF (0, 5, 10, 20, and 30 g) and catheter contact angle (30°, 45°, and 90°) were changed in each set (n=8 each). The LI rise, LI drop, and lesion size were evaluated. RESULTS The LI rise increased as CF increased. There was no angular dependence with the LI rise under all CFs in the MiFi. On the other hand, the LI rise at 90° was lower than at 30° under 5 and 10 g of CF in STABLEPOINT. The LI drop increased as CF increased. Regarding the difference in catheter contact angles, the LI drop at 90° was lower than that at 30° for both catheters. The maximum lesion widths and surface widths were smaller at 90° than at 30°, whereas there were no differences in lesion depths. CONCLUSION The LI drop and lesion widths at 90° were significantly smaller than those at 30°, although the lesion depths were not different among the 3 angles for the MiFi and STABLEPOINT. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Gen Matsuura
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Hidehira Fukaya
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Emiyu Ogawa
- Department of Medical Engineering and Technology, Kitasato University School of Allied Health Sciences, Sagamihara, Kanagawa, Japan
| | - Sota Kawakami
- Department of Medical Engineering and Technology, Kitasato University School of Allied Health Sciences, Sagamihara, Kanagawa, Japan
| | - Hitoshi Mori
- Department of Cardiology, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Daiki Saito
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Tetsuro Sato
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Hironori Nakamura
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Naruya Ishizue
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Jun Oikawa
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Jun Kishihara
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Shinichi Niwano
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Junya Ako
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| |
Collapse
|
8
|
Matsuura G, Fukaya H, Ogawa E, Kawakami S, Saito D, Sato T, Arakawa Y, Kobayashi S, Shirakawa Y, Ishizue N, Oikawa J, Kishihara J, Niwano S, Ako J. Catheter contact angle influences local impedance drop during radiofrequency catheter ablation: insight from a porcine experimental study. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Local impedance (LI) at a distal tip of the ablation catheter can indirectly measure catheter contact and tissue temperature during radiofrequency catheter ablation (RFCA). LI decreases by RFCA, and a degree of LI drop is correlated with lesion size. However, data on the effects of catheter contact angle on lesion size and LI drop were scarce. This study aimed to evaluate the influence of catheter contact angle on lesion size and LI drop in a porcine experimental study.
Methods
Lesions were created on porcine myocardial left ventricles by the LI-sensing ablation catheter (IntellaNav MiFi OI®). Contact force (CF) was measured using pressure to current transducer (load cell). Radiofrequency ablation was performed with a power of 30 Watt and a duration of 30 seconds. CF (0g, 5g, 10g, 20g, and 30g) and catheter angle (30°, 45°, and 90°) were changed in each set (total 120 lesions, n=8 each). LI rise, LI drop by RF application, and lesion size (maximum lesion width, maximum surface width, and maximum lesion depth) were evaluated.
Results
There was no angular dependence in LI rise in all CF. The values of LI rise increased as CF increased. The LI drop also increased as CF increased in all contact angles. Regarding the difference of catheter angles, LI drop with 90° was lower than those with 30° and 45°in CF 10g, 20g, and 30g, respectively. Maximum lesion width and surface width were larger in 30° and 45° than those in 90°, whereas there were no differences in maximum lesion depth.
Conclusion
LI drop in 90° were significantly lower than those in 45° and 30°. Although lesion depths were not different among the three angles, the absolute values of LI drop were different. Caution should be exercised to comprehend the LI drop with catheter angles.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- G Matsuura
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - H Fukaya
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - E Ogawa
- Kitasato University School of Allied Health Sciences, Medical Engineering and Technology, Sagamihara, Japan
| | - S Kawakami
- Kitasato University School of Allied Health Sciences, Medical Engineering and Technology, Sagamihara, Japan
| | - D Saito
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - T Sato
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - Y Arakawa
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - S Kobayashi
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - Y Shirakawa
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - N Ishizue
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - J Oikawa
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - J Kishihara
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - S Niwano
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| |
Collapse
|
9
|
Ogawa E, Akimoto J, Fukami S, Hayashi S, Kohno M, Doi M, Hamada R, Nakazawa H, Miyashita A, Arai T. Diffused light attenuation at 664 nm for PDT in salted cadaver brain. Photodiagnosis Photodyn Ther 2019; 29:101593. [PMID: 31704503 DOI: 10.1016/j.pdpdt.2019.101593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 11/01/2019] [Accepted: 11/01/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND We investigated light attenuation at 664 nm, which is the excitation wavelength of photodynamic therapy (PDT) using talaporfin sodium, in a salted cadaver brain. Estimation of therapeutic lesions is important to ensure the effectiveness and safety of brain tumor PDT. Previously reported optical properties of the human brain vary widely. In this study, we measured the light attenuation in brain tissue using a practical method. We employed a salted cadaver brain, in which the mechanical and optical properties can be maintained as close as possible to those under operative conditions. METHODS A neuroendoscope was inserted into the brain until the cerebral ventricle was reached. A thin cylindrical diffuser probe was advanced 10 mm from the endoscope tip. By another path from the brain surface, an optical fiber for measurement was inserted into a puncture needle, and a pair of needles was used to puncture the tissue and reach the same cerebral ventricle in which the endoscope tip was positioned. The attenuation of light intensities in the frontal lobe and cerebellum was measured by varying the bundle tip position. The starting positions of the bundle were confirmed by the endoscopic view. The measured light intensity attenuations were fitted with an exponential curve. RESULTS The following attenuation coefficients were obtained: 0.20 ± 0.05 mm-1 in the cerebrum and 0.27 ± 0.05 mm-1 in the cerebellum. CONCLUSION As conventional spectroscopic measurement may overestimate attenuation in the whole tissue, in situ measurement using the withdrawal technique might be appropriate for measurement of inhomogeneous biological tissues.
Collapse
Affiliation(s)
- Emiyu Ogawa
- School of Allied Health Science, Kitasato University, 1-15-1 Kitasato Minami-ku, Sagamihara, Kanagawa, 252-0373, Japan.
| | - Jiro Akimoto
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishi-shinjyuku, Sinjyuku-ku, Tokyo, 160-0023, Japan.
| | - Shinjiro Fukami
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishi-shinjyuku, Sinjyuku-ku, Tokyo, 160-0023, Japan.
| | - Shogo Hayashi
- Department of Anatomy, Tokyo Medical University, 6-7-1 Nishi-shinjyuku, Sinjyuku-ku, Tokyo 160-0023, Japan.
| | - Michihiro Kohno
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishi-shinjyuku, Sinjyuku-ku, Tokyo, 160-0023, Japan.
| | - Marika Doi
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
| | - Risa Hamada
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
| | - Haruna Nakazawa
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
| | - Aki Miyashita
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan; Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan.
| |
Collapse
|
10
|
Uchida Y, Kinose D, Noma K, Tsugawa T, Aoki K, Nakagawa H, Fukunaga K, Yamaguchi M, Osawa M, Tanaka-Mizuno S, Ogawa E, Nakano Y. P2.05-06 New Dosimetric Parameters Encompassing High Attenuation Enables More Accurate Prediction of Radiation Pneumonitis in Various Types of Cancers. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
11
|
Nakazawa H, Doi M, Ogawa E, Arai T. Modified optical coefficient measurement system for bulk tissue using an optical fiber insertion with varying field of view and depth at the fiber tip. Lasers Med Sci 2019; 34:1613-1618. [DOI: 10.1007/s10103-019-02756-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 02/20/2019] [Indexed: 12/01/2022]
|
12
|
Hamada R, Ogawa E, Arai T. Continuous Optical Monitoring of Red Blood Cells During a Photosensitization Reaction. Photobiomodul Photomed Laser Surg 2019; 37:110-116. [PMID: 31050934 DOI: 10.1089/photob.2018.4513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background: An oxygen-enriched photosensitizer solution was created by the addition of red blood cells (RBCs) as an investigative tool for photosensitization reactions (PRs). Although the oxygen levels and reaction progress can be monitored using the optical characteristics of hemoglobin, previously this has only been done using intermittent measurements. An increase in methemoglobin concentration with irradiation time was reported. Objective: We constructed a continuous optical measurement system to study the dynamics of the PR in a photosensitizer solution containing RBCs. We also measured the relationship between hemolysis and methemoglobin production in the solution. Materials and methods: A 664 nm wavelength continuous laser beam at 60 mW/cm2 was used to drive the PR, and a broadband (475-650 nm) light beam was used to monitor the absorption spectra during the PR. The light sources were arranged perpendicularly to cross at a 1 × 10 mm cuvette. The sample in this cuvette was prepared from a low-hematocrit rabbit RBC suspension medium containing 30 μg/mL talaporfin sodium, a chlorine photosensitizer. The concentrations of oxygenated hemoglobin, deoxygenated hemoglobin, and methemoglobin were obtained using a multiple regression analysis of the measured spectra. Results: The oxygen saturation decreased continuously during the PR. The relationship between the degree of hemolysis and produced methemoglobin concentration was confirmed. Conclusions: We determined the dynamics of the oxidation and oxygen desorption of hemoglobin, as well as RBC hemolysis, during the PR. Our measurement system, which uses the properties of hemoglobin contained in RBCs, might be useful for continuous monitoring of PR dynamics.
Collapse
Affiliation(s)
- Risa Hamada
- 1 School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, Yokohama, Japan
| | - Emiyu Ogawa
- 2 School of Allied Health Science, Kitasato University, Sagamihara, Japan
| | - Tsunenori Arai
- 3 Department of Applied Physics and Physico-Infomatics, Faculty of Science and Technology, Keio University, Yokohama, Japan
| |
Collapse
|
13
|
Kurosawa M, Ogawa E, Sutoh E. Favorable clinical efficacy of mepolizumab on the upper and lower airways in severe eosinophilic asthma: a 48-week pilot study. Eur Ann Allergy Clin Immunol 2019; 51:213-221. [PMID: 30983308 DOI: 10.23822/eurannaci.1764-1489.94] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Objective. Assessing efficacy of mepolizumab on the upper and lower airways in severe eosinophilic asthma patients. Patients and methods. This study was a 48-week prospective open-label analysis of mepolizumab in 11 asthmatics with chronic rhinosinusitis (CRS). It was administered every 4 weeks. Six patients were aspirin-exacerbated respiratory disease (AERD). Results. Blood eosinophil count was reduced after the first administration, and was continued until 48 weeks. The Sino-Nasal Outcome Test scores, the Lund-MacKay CT scoring, and forced expiratory volume in 1 second were improved. Symptom scores of anosmia and nasal congestion were not improved in the patients with AERD. All oral corticosteroid-dependent patients successfully withdrew from corticosteroids. Conclusions. This pilot study showed mepolizumab improved nasal symptoms and lung function in severe eosinophilic asthma patients with CRS, suggesting efficacy of mepolizumab on the upper and lower airway symptoms in eosinophilic asthma.
Collapse
Affiliation(s)
- M Kurosawa
- Department of Allergy and Respiratory Medicine, Sutoh Hospital, Annaka, Gunma, Japan
| | - E Ogawa
- Department of Radiology, Sutoh Hospital, Annaka, Gunma, Japan
| | - E Sutoh
- Department of Allergy and Respiratory Medicine, Sutoh Hospital, Annaka, Gunma, Japan.,Department of Radiology, Sutoh Hospital, Annaka, Gunma, Japan
| |
Collapse
|
14
|
Affiliation(s)
- Rie Homma
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University
| | - Machiko Shinozuka
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University
| | | | - Emiyu Ogawa
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University
- Department of Applied Physics and Physico-Informatics, Faculty of Science and Technology, Keio University
| |
Collapse
|
15
|
Kobayashi M, Suganuma K, Shimazaki N, Ogawa E, Arai T. Effect of Interactive Pressure on Drug Delivery to <i>Ex Vivo</i> Heated Porcine Carotid Artery Walls. ABE 2019. [DOI: 10.14326/abe.8.38] [Citation(s) in RCA: 1] [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] [Indexed: 11/04/2022] Open
Affiliation(s)
- Misaki Kobayashi
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University
| | - Kao Suganuma
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University
| | | | - Emiyu Ogawa
- Department of Medical Engineering and Technology, School of Allied Health Science, Kitasato University
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University
- Department of Applied Physics and Physico-Informatics, Faculty of Science and Technology, Keio University
| |
Collapse
|
16
|
Uno Y, Ogawa E, Aiyoshi E, Arai T. A Three-Compartment Pharmacokinetic Model to Predict the Interstitial Concentration of Talaporfin Sodium in the Myocardium for Photodynamic Therapy: A Method Combining Measured Fluorescence and Analysis of the Compartmental Origin of the Fluorescence. Bioengineering (Basel) 2018; 6:bioengineering6010001. [PMID: 30583456 PMCID: PMC6466385 DOI: 10.3390/bioengineering6010001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/10/2018] [Accepted: 12/19/2018] [Indexed: 11/16/2022] Open
Abstract
To evaluate the effectiveness of photodynamic therapy occurring in the interstitial space of the myocardium, we estimated the interstitial concentration of talaporfin sodium in the canine myocardium by constructing a three-compartment pharmacokinetic model based on measured changes in talaporfin sodium plasma concentration and myocardial fluorescence. Differential rate equations of talaporfin sodium concentration in the plasma, interstitial space, and cell compartment were developed with individual compartment volume, concentration, and rate constants. Using measured volume ratios based on histological examinations, we defined that the myocardial fluorescence consisted of the linear addition of fluorescence generated from these three compartments. The rate constants were obtained by fitting to minimize the sum of the squared errors between the measured talaporfin sodium concentrations and the calculated concentrations divided by the number of data points using the conjugate gradient method in MATLAB. We confirmed that this fitting operation may be appropriate, because a coefficient of determination between the measured talaporfin sodium changes and the calculated concentrations using our equations was 0.99. Consequently, to estimate the interstitial concentration in the canine myocardium, we propose a three-compartment pharmacokinetic model construction methodology using measured changes in talaporfin sodium plasma concentration and changes in myocardial fluorescence.
Collapse
Affiliation(s)
- Yuko Uno
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama City, Kanagawa 223-8522, Japan.
| | - Emiyu Ogawa
- School of Allied Health Science, Kitasato University, Kanagawa 252-0373, Japan.
| | - Eitaro Aiyoshi
- The Institute of Statistical Mathematics, Tokyo 190-0014, Japan.
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama City, Kanagawa 223-8522, Japan.
- Department of Applied Physics and Physico-Informatics, Faculty of Science and Technology, Keio University, Kanagawa 223-8522, Japan.
| |
Collapse
|
17
|
Ogawa E, Cai Y, Bean J, Shmerling R, Thakral M, Leveille S. ASSESSING THE OVERALL IMPACT OF TOTAL KNEE REPLACEMENT ON PAIN AND MOBILITY IN THE OLDER POPULATION. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1111] [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: 11/14/2022] Open
Affiliation(s)
- E Ogawa
- Department of Exercise and Health Sciences, University of Massachusetts Boston
| | - Y Cai
- College of Nursing and Health Sciences, University of Massachusetts Boston
| | | | - R Shmerling
- Division of Rheumatology, Beth Israel Deaconess Medical Center
| | - M Thakral
- Kaiser Permanente Wahington Health Research Institute
| | | |
Collapse
|
18
|
Ji F, Wei B, Yeo YH, Ogawa E, Zou B, Stave CD, Li Z, Dang S, Furusyo N, Cheung RC, Nguyen MH. Systematic review with meta-analysis: effectiveness and tolerability of interferon-free direct-acting antiviral regimens for chronic hepatitis C genotype 1 in routine clinical practice in Asia. Aliment Pharmacol Ther 2018; 47:550-562. [PMID: 29327780 DOI: 10.1111/apt.14507] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 11/22/2017] [Accepted: 12/17/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Direct-acting antiviral (DAA) regimens have shown high efficacy and tolerability for patients with HCV genotype 1/1b (GT1/1b) in clinical trials. However, robust real-world evidence of interferon (IFN)-free DAA treatment for HCV GT1-infected patients in Asia is still lacking. AIM To systematically review and meta-analyse the effectiveness and tolerability of IFN-free DAA therapy for HCV GT1 infection in Asia. METHODS We included studies that enrolled adult patients with HCV GT1 infection in routine clinical practice in Asia, using IFN-free DAA regimens, and reported sustained virological response (SVR) after 12/24 weeks end-of-treatment by 31 May 2017. The pooled SVR rates were computed with a random-effects model. Subgroup analysis and meta-regression as previously registered in PROSPERO were performed to determine how pre-planned variables might have affected the pooled estimates. RESULTS We included 41 studies from eight countries and regions, comprising of 8574 individuals. The pooled SVR rates for GT1 were 89.9% (95% CI 88.6-91.1, I2 = 55.1%) with daclatasvir/asunaprevir (DCV/ASV) and 98.1% (95% CI 97.0-99.0, I2 = 41.0%) with ledipasvir/sofosbuvir ± ribavirin (LDV/SOF ± RBV). Baseline cirrhosis but not prior treatment history and age, attenuated the effectiveness of both regimens. Baseline resistance associated substitutions (RASs) severely attenuated SVR of DCV/ASV (65.4% vs 94.3%, P < 0.001) and only minimally with LDV/SOF ± RBV (94.5% vs 99.2%, P = 0.003). Patients with renal dysfunction treated with DCV/ASV showed a higher SVR rate (93.9% vs 89.8%, P = 0.046). Patients with hepatocellular carcinoma (HCC) LDV/SOF ± RBV achieved a lower SVR than those without HCC (94.1% vs 98.7%, P = 0.001). CONCLUSION All oral DAA treatment of HCV GT1 resulted in high cure rates in Asian patients in routine clinical practice setting including elderly patients and those with end-stage renal disease.
Collapse
Affiliation(s)
- F Ji
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Department of Infectious Diseases, The Second Affiliated Hospital of Xi' an Jiaotong University, Xi'an, China.,Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - B Wei
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - Y H Yeo
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - E Ogawa
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - B Zou
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - C D Stave
- Department of Lane Medical Library, Stanford University Medical Center, Palo Alto, CA, USA
| | - Z Li
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - S Dang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi' an Jiaotong University, Xi'an, China
| | - N Furusyo
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - R C Cheung
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Division of Gastroenterology and Hepatology, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - M H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| |
Collapse
|
19
|
Hamada R, Ogawa E, Arai T. Oxygen-Enriched Photosensitizer Medium with Red Blood Cells to Study Tissue Interaction of Photosensitization Reaction. Photomed Laser Surg 2018; 36:146-150. [DOI: 10.1089/pho.2017.4321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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)
- Risa Hamada
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, Yokohama, Japan
| | - Emiyu Ogawa
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, Yokohama, Japan
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, Yokohama, Japan
- Department of Applied Physics and Physico-Infomatics, Faculty of Science and Technology, Keio University, Yokohama, Japan
| |
Collapse
|
20
|
Ogawa E, Furusyo N, Nomura H, Dohmen K, Higashi N, Takahashi K, Kawano A, Azuma K, Satoh T, Nakamuta M, Koyanagi T, Kato M, Shimoda S, Kajiwara E, Hayashi J. Short-term risk of hepatocellular carcinoma after hepatitis C virus eradication following direct-acting anti-viral treatment. Aliment Pharmacol Ther 2018; 47:104-113. [PMID: 29035002 DOI: 10.1111/apt.14380] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 07/10/2017] [Accepted: 09/22/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND With the development of direct-acting anti-virals (DAAs), almost all patients with chronic hepatitis C virus (HCV) infection can achieve sustained viral response (SVR). AIM To evaluate the short-term risk of HCC among patients with SVR by DAAs, including those with cirrhosis or previous HCC. METHODS This large-scale, multicentre cohort study included 1,675 consecutive patients who achieved SVR by treatment with interferon-free sofosbuvir-based regimens, divided into groups with (n = 152) or without previous HCC (n = 1,523). The Kaplan-Meier method and Cox proportional hazard analysis were used to calculate the cumulative HCC incidence and related factors of HCC. RESULTS During the follow-up period (median: 17 months), 46 (2.7%) patients developed HCC. The 1-year cumulative rates of de novo HCC were 0.4% and 4.9% for the noncirrhosis and cirrhosis groups respectively (log-rank test: P < 0.001). For cirrhotic patients, serum α-fetoprotein level at the end of treatment (EOT-AFP) was the strongest predictor of de novo HCC. The 1-year cumulative de novo HCC rates were 1.4% and 13.1% in the EOT-AFP < 9.0 ng/mL and ≥ 9.0 ng/mL groups (cut-off value) respectively (log-rank test: P < 0.001). The 1-year cumulative rates of HCC recurrence were 6.5% and 23.1% for the noncirrhosis and cirrhosis groups respectively (log-rank test: P = 0.023). For cirrhotic patients, previous HCC characteristics were significantly associated with HCC recurrence. In contrast, sex, age and metabolic features did not influence de novo HCC or recurrence. CONCLUSIONS For cirrhotic patients after elimination of HCV, serum EOT-AFP level and previous HCC characteristics would be useful markers for predicting de novo HCC or recurrence.
Collapse
|
21
|
Ohtani K, Usuda J, Ogawa E, Maehara S, Imai K, Kudo Y, Ono S, Shigefuku S, Eriguchi D, Inoue T, Maeda J, Yoshida K, Hagiwara M, Kakihana M, Kajiwara N, Ohira T, Arai T, Ikeda N. Skin fluorescence following photodynamic therapy with NPe6 photosensitizer. Photodiagnosis Photodyn Ther 2017; 20:210-214. [DOI: 10.1016/j.pdpdt.2017.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 09/19/2017] [Accepted: 10/01/2017] [Indexed: 10/18/2022]
|
22
|
Ogawa E, Arai T. Development of a practical animal model of photodynamic therapy using a high concentration of extracellular talaporfin sodium in interstitial fluid: influence of albumin animal species on myocardial cell photocytotoxicity in vitro. Lasers Med Sci 2017; 32:2105-2109. [PMID: 28980086 DOI: 10.1007/s10103-017-2324-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 09/11/2017] [Indexed: 10/18/2022]
Abstract
Photodynamic reaction-induced photocytotoxicity using talaporfin sodium is inhibited by serum proteins binding to talaporfin sodium. The serum albumin binding site for talaporfin sodium differs among animal species. To identify a practical animal therapeutic model, we studied the ability of human, canine, bovine, and porcine albumin to influence talaporfin sodium-induced photocytotoxicity in rat myocardial cells in vitro. Human, canine, bovine, and porcine serum albumins were used. The ratio of talaporfin sodium binding, which is strongly associated with photocytotoxicity, was measured by ultrafiltration with an albumin concentration of 0.5-20 mg/ml and 20 μg/ml talaporfin sodium to mimic interstitial fluid. Rat myocardial cell lethality was measured by the WST assay 2 h after samples were exposed to a radiant exposure of 20 J/cm2 by a red diode laser (Optical Fuel™, Sony, Tokyo, Japan) with a wavelength of 663 nm. The binding ratio dependence on albumin concentration differed among the animal species. Bovine albumin exhibited the largest difference from human albumin, with a maximum difference of 31% at 2 mg/ml albumin. The cell lethality characteristic was similar between human and canine albumin. The cell lethality dependence on albumin was not in the same order as the binding ratio. Cell lethality was lowest for human albumin with higher albumin concentrations between 5 and 20 mg/ml. There were no significant differences in cell lethality between bovine and porcine albumin and between human and canine albumin. We suggest that the canine model may be a useful animal therapeutic model for evaluating photodynamic therapy using a high concentration of the photosensitizer in the extracellular space.
Collapse
Affiliation(s)
- Emiyu Ogawa
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi Kohoku-ku, Yokohama, 223-8522, Japan
- School of Science and Technology, Keio University, 3-14-1 Hiyoshi Kohoku-ku, Yokohama, 223-8522, Japan
| |
Collapse
|
23
|
Ogawa E, Edamitsu T, Okuyama R. 121 The role of Runx family in the murine epidermis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.431] [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]
|
24
|
Takeichi T, Kobayashi A, Ogawa E, Okuno Y, Kataoka S, Kono M, Sugiura K, Okuyama R, Akiyama M. Autosomal dominant familial generalized pustular psoriasis caused by a CARD14
mutation. Br J Dermatol 2017; 177:e133-e135. [DOI: 10.1111/bjd.15442] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- T. Takeichi
- Department of Dermatology; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - A. Kobayashi
- Department of Pediatrics; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - E. Ogawa
- Department of Pediatrics; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - Y. Okuno
- Department of Dermatology; Shinshu University; Graduate School of Medicine; Matsumoto Japan
- Center for Advanced Medicine and Clinical Research; Nagoya University Hospital; Nagoya Japan
| | - S. Kataoka
- Center for Advanced Medicine and Clinical Research; Nagoya University Hospital; Nagoya Japan
| | - M. Kono
- Department of Dermatology; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - K. Sugiura
- Department of Dermatology; Fujita Health University School of Medicine; Toyoake Japan
| | - R. Okuyama
- Department of Pediatrics; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - M. Akiyama
- Department of Dermatology; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| |
Collapse
|
25
|
Doi M, Ogawa E, Arai T. Effect of a photosensitization reaction performed during the first 3 min after exposure of rat myocardial cells to talaporfin sodium in vitro. Lasers Med Sci 2017; 32:1873-1878. [PMID: 28780623 DOI: 10.1007/s10103-017-2298-3] [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] [Received: 04/25/2017] [Accepted: 07/27/2017] [Indexed: 11/27/2022]
Abstract
To better understand the mechanism of photodynamic cardiac ablation, we studied the effects of a photosensitization reaction (PR) performed during the first 3 min after rat myocardial cells were exposed to talaporfin sodium. A 3-mm-square microelectrode array with 64 electrodes was used to continuously measure the action potentials of the myocardial cells. A 30 μg/mL talaporfin sodium solution, a chlorine photosensitizer, was used, along with a 663-nm red diode laser (86 mW/cm2 for up to 600 s). The first trough of the measured action potential waveform corresponding to Na+ dynamics decreased exponentially with increasing PR duration. The average decay time of the exponential function from PR onset was 20.1 s. Marked morphological changes in the myocardial cells was observed after the PR. These results indicated that the behavior of the action potential waveform measured by the microelectrode array might be used as a less invasive method to evaluate the electrophysiological effects of a PR on myocardial cells.
Collapse
Affiliation(s)
- Marika Doi
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku Yokohama, 223-8522, Japan.
| | - Emiyu Ogawa
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku Yokohama, 223-8522, Japan
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku Yokohama, 223-8522, Japan
| |
Collapse
|
26
|
Ogawa E, You T, Thapa S, Cai Y, Yeh G, Wayne P, Shi L, Leveille S. EFFECTS OF TAI CHI ON MULTISITE PAIN AND PHYSICAL FUNCTION IN OLDER ADULTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.352] [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)
- E. Ogawa
- University of Massachusetts Boston, Boston, Massachusetts,
| | - T. You
- University of Massachusetts Boston, Boston, Massachusetts,
| | - S. Thapa
- University of Massachusetts Boston, Boston, Massachusetts,
| | - Y. Cai
- University of Massachusetts Boston, Boston, Massachusetts,
| | - G. Yeh
- Beth Israel Deaconess Medical Center, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts
| | - P. Wayne
- Harvard Medical School, Boston, Massachusetts
| | - L. Shi
- University of Massachusetts Boston, Boston, Massachusetts,
| | - S.G. Leveille
- University of Massachusetts Boston, Boston, Massachusetts,
| |
Collapse
|
27
|
Ogawa E, Takenoya H, Arai T. Temperature Influence on Myocardial Cell Cytotoxicity of the Extracellular Photosensitization Reaction with Talaporfin Sodium and Serum Proteins at 17°-37°C. Photomed Laser Surg 2017; 35:555-559. [PMID: 28613976 DOI: 10.1089/pho.2015.4052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND We investigated the binding of talaporfin sodium with albumin and its photocytotoxicity during temperature changes by measuring absorbance spectra. The targeted tissue temperature differs according to the procedure. The photocytotoxicity efficiency should be investigated quantitatively because efficiency changes arising from temperature changes are expected. MATERIALS AND METHODS The temperature dependence of talaporfin sodium binding with human serum albumin (0-20 mg/mL), high-density lipoprotein (0-0.04 mg/mL), and low-density lipoprotein (0-0.14 mg/mL) was investigated at 17°C, 27°C, and 37°C by measurement of absorbance spectra. Cell lethality was measured using a water-soluble tetrazolium-8 assay at 2 h after the photosensitization reaction at 17°C and 37°C. RESULTS The binding ratios of talaporfin sodium with high-density lipoprotein decreased by 6.3% and those with low-density lipoprotein decreased by 12.8% when the temperature increased from 17°C to 37°C. Cell lethality increased significantly with a temperature rise from 17°C to 37°C at irradiation exposure of 20 and 40 J/cm2 and talaporfin sodium concentration of 20 μg/mL. CONCLUSIONS From our in vitro data, we can predict that the change in photocytotoxicity efficiency would be negligible with a temperature decrease of <5°C from the body temperature in the case of photodynamic ablation with a short drug-light interval.
Collapse
Affiliation(s)
- Emiyu Ogawa
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University , Yokohama, Japan
| | - Hiromi Takenoya
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University , Yokohama, Japan
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University , Yokohama, Japan
| |
Collapse
|
28
|
Ogawa E, Kurotsu M, Arai T. Irradiance dependence of the conduction block of an in vitro cardiomyocyte wire. Photodiagnosis Photodyn Ther 2017; 19:93-97. [PMID: 28502877 DOI: 10.1016/j.pdpdt.2017.05.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/25/2017] [Accepted: 05/09/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND To obtain therapeutic condition precisely by in vitro experiment, we studied the irradiance dependence of the electrical conduction blockage caused by a photodynamic reaction using a high extracellular concentration of talaporfin sodium on a novel in vitro cardiomyocyte electrical conduction wire. METHODS The cardiomyocyte wires were constructed on patterned cultivation cover glass, which had cultivation areas 60μm in width, and a maximum length of 10mm. The talaporfin sodium concentration was set to 20μg/mL. The photodynamic reaction with a high extracellular photosensitizer concentration was performed with a short time interval (approximately 15min) between photosensitizer exposure and irradiation. A 663-nm laser was applied to the cardiomyocyte wire, and the irradiance was varied between 3 and 120mW/cm2. The cardiomyocyte electrical conduction was evaluated using the cross-correlation function of intracellular Ca2+ probe fluorescence brightness from an upper and lower section outside the laser irradiation area of a wire every 10s, which lasted up to 600s. RESULTS The onset of electrical conduction blockage was defined by an 85% decrease in the cross-correlation function, compared with its initial value. The time for the electrical conduction blockage decreased from 600 to 300s as the irradiance was increased. Also, the probability of electrical conduction blockage was found to increase with increasing irradiance. CONCLUSIONS We found a strong dependence on the irradiance for the time and probability of electrical conduction blockage.
Collapse
Affiliation(s)
- Emiyu Ogawa
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Mariko Kurotsu
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan; School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| |
Collapse
|
29
|
Hamada R, Ogawa E, Arai T. Phototoxicity of Vascular Endothelial Cells Caused by Contact with Talaporfin Sodium for 15-120 Min: In Vitro and In Vivo Studies. Photomed Laser Surg 2017; 35:305-310. [PMID: 28437192 DOI: 10.1089/pho.2016.4164] [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
OBJECTIVE To reveal the mechanism of vascular patency in the myocardium after photosensitization immediately after talaporfin sodium (TS) injection in a canine model, we investigated acute injury to vascular endothelial cells (VECs) in vitro and in vivo. BACKGROUND DATA There are many reports of vascular shutdown within the target region in photodynamic therapy with TS. Vascular patency within healthy canine myocardium in which a photosensitization reaction starts immediately after injection of TS has been reported. MATERIALS AND METHODS TS fluorescence in human umbilical vein endothelial cells and cell lethality were measured with drug contact time (DCT) up to 120 min at 20 μg/mL. Dependence of radiant exposure on cell lethality with 60 min DCT was investigated using two albumin concentrations that corresponded to those in plasma and interstices. Irradiation (21 mW/cm) outside the adventitia of canine cervical veins for 167 or 667 sec was emitted through a diffuser probe 30 min after intravenous injection of TS (2.5 mg/kg). Veins were extracted ∼30 min after the reaction and stained with von Willebrand factor. RESULTS Intracellular fluorescence increased, but not cell lethality, with increasing DCT. Cell lethality increased gradually and reached 100% over 20 J/cm2 in the albumin concentration in the interstices. Normal VECs were found at the acute phase over 20 J/cm2 with a TS concentration in plasma of ∼14 μg/mL in vivo. CONCLUSIONS VEC injury after a photosensitization reaction to healthy tissue shortly after TS injection might be low enough for the blood vessels to be patent.
Collapse
Affiliation(s)
- Risa Hamada
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, Yokohama, Japan
| | - Emiyu Ogawa
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, Yokohama, Japan
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, Yokohama, Japan
| |
Collapse
|
30
|
Ogawa E, Kawate N, Inaba T, Tamada H. Testicular gene expression of steroidogenesis-related factors in prepubertal, postpubertal, and aging dogs. Theriogenology 2017; 90:42-48. [DOI: 10.1016/j.theriogenology.2016.11.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/04/2016] [Accepted: 11/05/2016] [Indexed: 10/20/2022]
|
31
|
Kawai Y, Nagai Y, Ogawa E, Kondo H. Japanese Society for Laboratory Hematology flow cytometric reference method of determining the differential leukocyte count: external quality assurance using fresh blood samples. Int J Lab Hematol 2016; 39:202-222. [DOI: 10.1111/ijlh.12607] [Citation(s) in RCA: 8] [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] [Received: 03/31/2016] [Accepted: 10/25/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Y. Kawai
- The Standardization Subcommittee for Blood Cell Counting of the Japanese Society for Laboratory Hematology; Tokyo Japan
- International University of Health & Welfare; Sanno Hospital; Tokyo Japan
| | - Y. Nagai
- The Standardization Subcommittee for Blood Cell Counting of the Japanese Society for Laboratory Hematology; Tokyo Japan
- Nihon Kohden Corporation; IVD Operations; Tokyo Japan
- Kansai University of Health Sciences; Osaka Japan
| | - E. Ogawa
- The Standardization Subcommittee for Blood Cell Counting of the Japanese Society for Laboratory Hematology; Tokyo Japan
- Nippon Becton Dickinson Company, Ltd; BD, Biosciences; Tokyo Japan
| | - H. Kondo
- The Standardization Subcommittee for Blood Cell Counting of the Japanese Society for Laboratory Hematology; Tokyo Japan
- Kansai University of Health Sciences; Osaka Japan
| |
Collapse
|
32
|
Matsuki T, Tajima S, Hara T, Yahagi K, Ogawa E, Kodama H. Infant formula with galacto-oligosaccharides (OM55N) stimulates the growth of indigenous bifidobacteria in healthy term infants. Benef Microbes 2016; 7:453-61. [DOI: 10.3920/bm2015.0168] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The objective of the study was to investigate whether an infant formula supplemented with galacto-oligosaccharides (GOS; OM55N) was able to stimulate the growth of indigenous bifidobacteria and to establish microbiota similar to that of breastfed infants. A randomised, double-blind, placebo-controlled trial was performed using 35 healthy term infants (31-54 days of age; 42±6 days) to determine whether infant formula with 0.3 g/dl GOS (OM55N) stimulated the growth of bifidobacteria in the infants’ guts. At the trial onset and 2 weeks after, the infants’ faecal samples were examined for microbiota composition (bacterial abundance and α-diversity) and faecal characteristics. Among the 35 infants, 5 were withdrawn and 8 were excluded from the final evaluation before breaking the blinding since the indigenous bifidobacteria were not detected at the trial onset. After 2 weeks, the abundance of Bifidobacteriaceae was significantly increased in the GOS feeding group compared to the control (+11.6±24.1% vs -3.9±13.0%; P=0.043). The Shannon index, which accounts for both abundance and evenness of the present species, was significantly decreased with GOS supplementation (-0.1±0.4 vs +0.4±0.4; P=0.014). Faecal characteristics such as pH and organic acids were similar in both groups, with no statistical differences. No adverse side effects related to the formula consumption were reported. Although the concentration of GOS was relatively low, the infant formula with GOS increased the abundance of bifidobacteria and resulted in a reduced α-diversity of the microbiota.
Collapse
Affiliation(s)
- T. Matsuki
- Yakult Central Institute, Basic Research Department, 5-11 Izumi, Kunitachi, Tokyo 186-8650, Japan
| | - S. Tajima
- Yakult Central Institute, Basic Research Department, 5-11 Izumi, Kunitachi, Tokyo 186-8650, Japan
| | - T. Hara
- Yakult Central Institute, Basic Research Department, 5-11 Izumi, Kunitachi, Tokyo 186-8650, Japan
| | - K. Yahagi
- Yakult Central Institute, Basic Research Department, 5-11 Izumi, Kunitachi, Tokyo 186-8650, Japan
| | - E. Ogawa
- Teikyo University School of Medicine, Department of Pediatrics, 2-11-1 Kaga, Itabashi-ku Tokyo 173-8605, Japan
| | - H. Kodama
- Teikyo University School of Medicine, Department of Pediatrics, 2-11-1 Kaga, Itabashi-ku Tokyo 173-8605, Japan
| |
Collapse
|
33
|
Ogawa E, Takenoya H, Ito A, Arai T. Talaporfin sodium binding and photocytotoxicity of photosensitization reaction on myocardial cell under various albumin concentrations and temperature. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2015:1295-8. [PMID: 26736505 DOI: 10.1109/embc.2015.7318605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
To understand the efficiency change of the extracellular photosensitization reaction by the external factor in myocardium interstitial space, we studied the efficiency change of the extracellular photosensitization reaction caused by talaporfin sodium binding with serum proteins under various serum proteins concentrations and temperature conditions. Talaporfin sodium Q band absorbance was measured with various albumin concentrations and the cell survival rate was measured by WST assay in the same conditions. The talaporfin sodium binding ratio with albumin, high-density lipoprotein, and low-density lipoprotein were measured by talaporfin sodium absorbance measurement after the ultrafiltration. The albumin concentration affects the photocytotoxicity strongly when the albumin concentration was over 2.1 mg/ml in the case of the extracellular photosensitization reaction. It would be useful to measure the peak wavelength in Q band absorbance was suggested to know the albumin concentration and the photocytotoxicity efficiency to realize the safety treatment. The binding ratios with high-density lipoprotein and low-density lipoprotein were decreased with the solution temperature rise from 17°C to 37 °C and the photocytotoxicity was increased with temperature rise from 17°C to 37°C involving this binding ratio change. It would be important to maintain the target organ temperature during the photosensitization reaction to keep the photosensitization reaction efficiency.
Collapse
|
34
|
Ura K, Furusyo N, Ogawa E, Hayashi T, Mukae H, Shimizu M, Toyoda K, Murata M, Hayashi J. Serum WFA(+) -M2BP is a non-invasive liver fibrosis marker that can predict the efficacy of direct-acting anti-viral-based triple therapy for chronic hepatitis C. Aliment Pharmacol Ther 2016; 43:114-24. [PMID: 26503582 DOI: 10.1111/apt.13431] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 07/28/2015] [Accepted: 09/25/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND The Wisteria floribunda agglutinin-positive human Mac-2-binding protein (WFA(+) -M2BP) is a new liver fibrosis glycobiomarker with unique fibrosis-related glyco-alteration. WFA(+) -M2BP is also a useful surrogate marker for the risk of developing hepatocellular carcinoma and for the liver functional reserve. AIM To evaluate the diagnostic ability of WFA(+) -M2BP for liver fibrosis in the clinical setting and the clinical utility of WFA(+) -M2BP for predicting the efficacy of direct-acting anti-viral (DAA) treatment for chronic hepatitis C patients. METHODS The study included 159 genotype 1 hepatitis C patients who received DAA-based treatment (telaprevir or simeprevir) combined with pegylated-interferon alpha plus ribavirin (108 telaprevir- and 51 simeprevir-based triple treatment). The relation between baseline serum WFA(+) -M2BP and treatment efficacy was evaluated. RESULTS The serum WFA(+) -M2BP level significantly increased with the progress of liver fibrosis. Area under the receiver operating characteristic curve analysis identified 2.17 as the cut-off index (COI) for WFA(+) -M2BP for diagnosing advanced fibrosis. The sustained virological response (SVR) rate was significantly, negatively correlated with the serum WFA(+) -M2BP level. Multiple logistic regression analysis found a low serum WFA(+) -M2BP level (<2.17 COI) to be independently associated with SVR (odds ratio, 4.35, P = 0.027). Even for prior nonresponders and patients with the interleukin-28B minor allele or histological advanced fibrosis, treatment outcome was favourable for patients with a low serum WFA(+) -M2BP level. CONCLUSION Serum WFA(+) -M2BP is a non-invasive liver fibrosis marker useful for predicting the efficacy of DAA-based triple therapy for chronic hepatitis C patients.
Collapse
Affiliation(s)
- K Ura
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.,Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Furusyo
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.,Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - E Ogawa
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.,Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Hayashi
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - H Mukae
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - M Shimizu
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - K Toyoda
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - M Murata
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.,Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - J Hayashi
- Kyushu General Internal Medicine Center, Haradoi Hospital, Fukuoka, Japan
| |
Collapse
|
35
|
Ogawa E, Furusyo N, Dohmen K, Kajiwara E, Kawano A, Nomura H, Takahashi K, Satoh T, Azuma K, Nakamuta M, Koyanagi T, Kotoh K, Shimoda S, Hayashi J. Effectiveness of triple therapy with simeprevir for chronic hepatitis C genotype 1b patients with prior telaprevir failure. J Viral Hepat 2015; 22:992-1001. [PMID: 26075320 DOI: 10.1111/jvh.12427] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 04/24/2015] [Indexed: 02/07/2023]
Abstract
Favourable efficacy and safety profiles for simeprevir in combination with pegylated interferon alpha (PEG-IFNα) and ribavirin (triple therapy) have been shown in clinical trials. This study was carried out to evaluate the effectiveness of simeprevir-based triple therapy for patients with prior telaprevir treatment failure. This multicentre, observational cohort consisted of 345 consecutive Japanese patients infected with HCV genotype 1b, including 20 who had experienced telaprevir-based triple therapy. Amino acid substitutions in the NS3/4A region were identified by direct sequencing at the time of relapse or breakthrough in treatment with telaprevir and at the initiation of treatment with simeprevir. Patients were stratified according to prior response to PEG-IFNα and ribavirin. Of the 20 patients with telaprevir treatment failure, 10 (50.0%) achieved sustained virological response at week 12 after the end of treatment (SVR12). For patients treatment naïve [3/4 (75.0%)] or with prior relapse [1/1 (100%)] or partial response [5/6 (83.3%)] to PEG-IFNα and ribavirin, almost all achieved SVR12, mainly because of the improvement of treatment adherence, especially to direct-acting antiviral agent and ribavirin. However, of the nine patients with prior null response to PEG-IFNα and ribavirin, only one (11.1%) achieved SVR12, despite all having received an adequate treatment dosage, and five (55.6%) achieved rapid virological response. The treatment outcome of simeprevir-based triple therapy for HCV genotype 1b patients with prior telaprevir failure depended on the prior response to PEG-IFNα and ribavirin. For patients with prior null response to PEG-IFNα and ribavirin, retreatment with simeprevir-based triple therapy is not a useful option.
Collapse
Affiliation(s)
- E Ogawa
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - N Furusyo
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - K Dohmen
- Department of Internal Medicine, Chihaya Hospital, Fukuoka, Japan
| | - E Kajiwara
- Department of Hepatology, Steel Memorial Yawata Hospital, Kitakyushu, Japan
| | - A Kawano
- Department of Medicine, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
| | - H Nomura
- The Center for Liver Disease, Shin-Kokura Hospital, Kitakyushu, Japan
| | - K Takahashi
- Department of Medicine, Hamanomachi Hospital, Fukuoka, Japan
| | - T Satoh
- Center for Liver Disease, National Hospital Organization Kokura Medical Center, Kitakyushu, Japan
| | - K Azuma
- Department of Medicine, Kyushu Central Hospital, Fukuoka, Japan
| | - M Nakamuta
- Department of Gastroenterology, Kyushu Medical Center, National Hospital Organization, Fukuoka, Japan
| | - T Koyanagi
- Department of Medicine, Fukuoka City Hospital, Fukuoka, Japan
| | - K Kotoh
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Shimoda
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - J Hayashi
- Kyushu General Internal Medicine Center, Haradoi Hospital, Fukuoka, Japan
| | | |
Collapse
|
36
|
Yasuo S, Kenichi Y, Ueno N, Arimoto A, Hosono M, Yoshikawa T, Toyokawa A, Kakeji Y, Tsai Y, Tsai C, Sul J, Lim M, Park J, Jang CE, Santilli O, Tripoloni D, Santilli H, Nardelli N, Greco A, Estevez M, Sakurai S, Ryu S, Cesana G, Ciccarese F, Uccelli M, Grava G, Castello G, Carrieri D, Legnani G, Olmi S, Naito M, Yamamoto H, Sawada Y, Mandai Y, Asano H, Ino H, Tsukuda K, Nagahama T, Ando M, Ami K, Arai K, Miladinovic M, Kitanovic A, Lechner M, Mayer F, Meissnitzer M, Fortsner R, Öfner D, Köhler G, Jäger T, Kumata Y, Fukushima R, Inaba T, Yaguchi Y, Horikawa M, Ogawa E, Katayama T, Kumar PS, Unal D, Caparlar C, Akkaya T, Mercan U, Kulacoglu H, Barreiro JJ, Baer IG, García LS, Cumplido PL, Florez LJG, Muñiz PF, Fujino K, Mita K, Ohta E, Takahashi K, Hashimoto M, Nagayasu K, Murabayashi R, Asakawa H, Koizumi K, Hayashi G, Ito H, Felberbauer F, Strobl S, Kristo I, Riss S, Prager G, El Komy H, El Gendi A, Nabil W, Karam M, El Kayal S, Chihara N, Suzuki H, Watanabe M, Uchida E, Chen T, Wang J, Wang H, Bouchiba N, Elbakary T, Ramadan A, Elakkad M, Berney C, Vlasov V, Babii I, Pidmurnyak O, Prystupa M, Asakage N, Molinari P, Contino E, Guzzetti L, Oggioni M, Sambuco M, Berselli M, Farassino L, Cocozza E, Crespi A, Ambrosoli A, Zhao Y. Topic: Inguinal Hernia - Unsolved problem in the daily practice. Hernia 2015; 19 Suppl 1:S293-304. [PMID: 26518826 DOI: 10.1007/bf03355374] [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: 11/24/2022]
Affiliation(s)
- S Yasuo
- Department of Surgery. Social Welfare Organization Saiseikai Imperial Gift Foundation, Inc. Saiseikai Wakakusa Hospital, Yokohama, Japan
| | - Y Kenichi
- Department of Surgery. Social Welfare Organization Saiseikai Imperial Gift Foundation, Inc. Saiseikai Wakakusa Hospital, Yokohama, Japan
| | - N Ueno
- Department of General Surgery, Yodogawa Christian Hospital, Osaka, Japan
| | - A Arimoto
- Department of General Surgery, Takatsuki General Hospital, Takatsuki, Japan
| | - M Hosono
- Division of Gastrointestinal Surgery, Kobe University Hospital, Kobe, Japan
| | - T Yoshikawa
- Department of General Surgery, Takatsuki General Hospital, Takatsuki, Japan
| | - A Toyokawa
- Department of General Surgery, Yodogawa Christian Hospital, Osaka, Japan
| | - Y Kakeji
- Division of Gastrointestinal Surgery, Kobe University Hospital, Kobe, Japan
| | - Y Tsai
- Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
| | - C Tsai
- Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - J Sul
- Chungnam National University Hospital, Daejeon, South Korea
| | - M Lim
- Chungnam National University Hospital, Daejeon, South Korea
| | - J Park
- Chungnam National University Hospital, Daejeon, South Korea
| | | | - O Santilli
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - D Tripoloni
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - H Santilli
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - N Nardelli
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - A Greco
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - M Estevez
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - S Sakurai
- St. Luke's International Hospital, Tokyo, Japan
| | - S Ryu
- Samsung Changwon Hospital, Changwon-si, Gyeongsangnam-do, South Korea
| | - G Cesana
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - F Ciccarese
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - M Uccelli
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Grava
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Castello
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - D Carrieri
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Legnani
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - S Olmi
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - M Naito
- Department of Surgery, Okayama Medical Center, Okayama, Japan
| | - H Yamamoto
- Department of Surgery, Okayama Medical Center, Okayama, Japan
| | - Y Sawada
- Himeji Daiichi Hospital, Himeji, Japan
| | - Y Mandai
- Okayama University Hospital, Okayama, Japan
| | - H Asano
- Okayama University Hospital, Okayama, Japan
| | - H Ino
- Okayama University Hospital, Okayama, Japan
| | - K Tsukuda
- Okayama University Hospital, Okayama, Japan
| | - T Nagahama
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | - M Ando
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | - K Ami
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | - K Arai
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | | | - A Kitanovic
- Surgery ward, General hospital, Krusevac, Serbia
| | - M Lechner
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - F Mayer
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - M Meissnitzer
- Department of Radiology, Paracelsus Medical University, Salzburg, Austria
| | - R Fortsner
- Department of Radiology, Paracelsus Medical University, Salzburg, Austria
| | - D Öfner
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - G Köhler
- Department of General Surgery, Sisters of Charity Hospital, Linz, Austria
| | - T Jäger
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - Y Kumata
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - R Fukushima
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - T Inaba
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - Y Yaguchi
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - M Horikawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - E Ogawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - T Katayama
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - P S Kumar
- ESI-PGIMSR and Medical College, Bangalore, India
| | - D Unal
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - C Caparlar
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - T Akkaya
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - U Mercan
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - H Kulacoglu
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | | | | | | | | | | | | | - K Fujino
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Mita
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - E Ohta
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Takahashi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - M Hashimoto
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Nagayasu
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - R Murabayashi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - H Asakawa
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Koizumi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - G Hayashi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - H Ito
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - F Felberbauer
- Div. of General Surgery, Dpt. of Surgery, Medical University of Vienna, Vienna, Austria
| | | | | | | | | | - H El Komy
- Faculty of medicine, Alexandria, Egypt
| | | | - W Nabil
- Faculty of medicine, Alexandria, Egypt
| | - M Karam
- Faculty of medicine, Alexandria, Egypt
| | | | - N Chihara
- Nippon Medical School, Musashikosugi Hospital, Institute of Gastroenterology, Kawasaki, Japan
| | - H Suzuki
- Nippon Medical School, Musashikosugi Hospital, Institute of Gastroenterology, Kawasaki, Japan
| | - M Watanabe
- Nippon Medical School, Musashikosugi Hospital, Institute of Gastroenterology, Kawasaki, Japan
| | - E Uchida
- Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - T Chen
- Department of Biliary-pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J Wang
- Department of Biliary-pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - H Wang
- Department of Biliary-pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - N Bouchiba
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - T Elbakary
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - A Ramadan
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - M Elakkad
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - C Berney
- Bankstown-Lidcombe Hospital, University of NSW, Sydney, Australia
| | - V Vlasov
- Khmelnitskiy regional hospital, Khmelnitskiy, Ukraine
| | | | | | | | - N Asakage
- Department of Surgery, Tsudanuma Central General Hospital, Chiba, Japan
| | - P Molinari
- University Of Insubria Anesthesia and Intensive Care, Varese, Italy
| | - E Contino
- University Of Insubria Anesthesia and Intensive Care, Varese, Italy
| | - L Guzzetti
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - M Oggioni
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - M Sambuco
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - M Berselli
- University Hospital Of Varese Department Of Surgery, Varese, Italy
| | - L Farassino
- University Hospital Of Varese Department Of Surgery, Varese, Italy
| | - E Cocozza
- University Hospital Of Varese Department Of Surgery, Varese, Italy
| | - A Crespi
- University Of Insubria Anesthesia and Intensive Care, Varese, Italy
| | - A Ambrosoli
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - Y Zhao
- Department of vascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
37
|
Shapovalyants SG, Michalev AI, Timofeev ME, Polushkin VG, Volkov VV, Oettinger AP, Lorenz R, Koch A, Köckerling F, Burcharth J, Andresen K, Pommergaard HC, Bisgaard T, Rosenberg J, Friis-Andersen H, Li JW, Le F, Zheng MH, Roscio F, Combi F, Frattini P, Clerici F, Scandroglio I, Zhao X, Nie Y, Liu J, Wang M, Kuo L, Tsai CC, Mok KT, Liu SI, Chen IS, Chou NH, Wang BW, Chen YC, Chang BM, Liang TJ, Kang CH, Tsai CY, Dudai M, Zeng YJ, Liu TL, Shi CM, Sun L, Shu R, Kawaguchi M, Takahashi Y, Tochimoto M, Horiguchi Y, Kato H, Tawaraya K, Hosokawa O, Huang C, Sorge A, Masoni L, Maglio R, Di Marzo F, Mosconi C, Gallinella Muzi M, Kato J, Iuamoto L, Meyer A, Almehdi R, Alazri Y, Sahoo B, Ahmed R, Nasser M, Inaba T, Fukuhsima R, Yaguchi Y, Horikawa M, Ogawa E, Kumata Y, Pokorny H, Fischer I, Resinger C, Lorenz V, Podar S, Längue F, Etherson K, Atkinson K, Khan S, Pradeep R, Viswanath Y, Munipalle PC, Chung J, Schuricht A, Magalhães C, Marcos M, Flores A, Sekmen U, Paksoy M, Ceriani F, Cutaia S, Canziani M, Caravati F. Inguinal Hernia: Recurrences, Tailored Surgery & Pubic Inguinal Pain Syndrome (Sportsman Hernia). Hernia 2015; 19 Suppl 1:S167-75. [PMID: 26518795 DOI: 10.1007/bf03355345] [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: 11/28/2022]
Affiliation(s)
- S G Shapovalyants
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - A I Michalev
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - M E Timofeev
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - V G Polushkin
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - V V Volkov
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - A P Oettinger
- Institution of Applied Medical Sciences, Russian National Research Medical University, Moscow, Russia
| | - R Lorenz
- Hernia Center 3 Chirurgen, Berlin, Germany
| | - A Koch
- Surgical Practise, Cottbus, Germany
| | - F Köckerling
- Klinik für Allgemein, Viszeral und Gefäβchirurgie, Vivantes Klinikum Spandau, Berlin, Germany
| | - J Burcharth
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark
| | - K Andresen
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark.,Department of Surgery, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - H-C Pommergaard
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark
| | - T Bisgaard
- Department of Surgery, Hvidovre Hospital, Hvidovre, Denmark.,The Danish Hernia Database, Copenhagen, Denmark
| | - J Rosenberg
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark.,The Danish Hernia Database, Copenhagen, Denmark.,Department of Surgery, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | | | - J W Li
- Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | | | | | - F Roscio
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - F Combi
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - P Frattini
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - F Clerici
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - I Scandroglio
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - X Zhao
- Beijing Chao-Yang Hospital, Beijing, China
| | | | | | | | - L Kuo
- Department of General Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | | - M Dudai
- Hernia Excellence, Ramat Aviv Medical Center, Tel Aviv, Israel
| | - Y J Zeng
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - T L Liu
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - C M Shi
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - L Sun
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - R Shu
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - M Kawaguchi
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Y Takahashi
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - M Tochimoto
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Y Horiguchi
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - H Kato
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - K Tawaraya
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - O Hosokawa
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - C Huang
- Cathay medical center, Taipei, Taiwan.,Taipei medical university, Taipei, Taiwan
| | - A Sorge
- Ospedale S. Giovanni Bosco, Napoli, Italy
| | | | - R Maglio
- Ospedale Israelitico, Roma, Italy
| | - F Di Marzo
- Ospedale S. Giovanni Bosco, Napoli, Italy
| | - C Mosconi
- Policlinico Universitario Tor Vergata, Roma, Italy
| | | | - J Kato
- University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - L Iuamoto
- University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - A Meyer
- Abdominal Wall Repair Center, Samaritano Hospital, Sao Paulo, Brazil
| | | | | | | | | | | | - T Inaba
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - R Fukuhsima
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - Y Yaguchi
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - M Horikawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - E Ogawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - Y Kumata
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - H Pokorny
- LK Wiener Neustadt, Wiener Neustadt, Austria
| | | | | | | | | | | | - K Etherson
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | - K Atkinson
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | - S Khan
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | - R Pradeep
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | - Y Viswanath
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | | | - J Chung
- University of Pennsylvania Health System, Philadelphia, USA
| | - A Schuricht
- University of Pennsylvania Health System, Philadelphia, USA
| | | | - M Marcos
- Centro Hospitalar Porto, Porto, Portugal.,Institute Cuf, Porto, Portugal
| | - A Flores
- Centro Hospitalar Porto, Porto, Portugal.,Institute Cuf, Porto, Portugal
| | - U Sekmen
- Acibadem Hospital, Istanbul, Turkey
| | - M Paksoy
- Dept. of Gen. Surg., Istanbul Uni. Cerrahpasa Med. School, Istanbul, Turkey
| | - F Ceriani
- Multimedica Santa Maria, Castellanza, Va, Italy
| | | | | | | |
Collapse
|
38
|
Ogawa E, Arai T. Parameter study of myocardial cell damage with photosensitization reaction under extracellular talaporfin sodium existence. Photodiagnosis Photodyn Ther 2015. [DOI: 10.1016/j.pdpdt.2015.07.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
39
|
Okada K, Furusyo N, Kainuma M, Ogawa E, Mukae H, Toyoda K, Murata M, Hayashi J. Raloxifene improves arterial stiffness and the carotid IMT progression in postmenopausal osteopenia/osteoporosis women over 12 months. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
40
|
Ogawa E, Machida N, Ito A, Arai T. Comparison of myocardial cell survival 2 h and 24 h after extracellular talaporfin sodium-induced photodynamic reaction. Photodiagnosis Photodyn Ther 2015; 13:196-200. [PMID: 26116282 DOI: 10.1016/j.pdpdt.2015.06.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 02/19/2015] [Revised: 06/17/2015] [Accepted: 06/18/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND We have proposed an application of photodynamic reaction for less-heated myocardial ablation which employs talaporfin sodium. Intracellular photodynamic reactions with ongoing uptake have the ability to induce apoptosis over time, raising the possibility of extending the lesion depth. The objective of this study was to understand how, in myocardial cells, the late cell survival levels change by incubation time with talaporfin sodium, and what dependence talaporfin sodium uptake has on the duration of incubation with talaporfin sodium in vitro. METHODS Rat myocardial cells were incubated with talaporfin sodium for 5-360 min and intracellular concentrations measured using a fluorescence micro-plate reader after wash. Cell survival was measured using a water-soluble tetrazolium assay at 2 and 24 h after a photodynamic reaction using a red diode laser of 660 nm, following 15-180 min of incubation with talaporfin sodium. Cells were stained with Hoechst 33342 to observe nuclear changes. RESULTS Intracellular talaporfin sodium concentration increased with incubation time, with a marked increase between 0 and 60 min. Cell survival at 24 h decreased by 20% when the duration of incubation with talaporfin sodium was extended from 15 to 30 min. Following incubation time of 30-180 min with talaporfin sodium, cell survival was decreased by approximately 30% between measurements at 2 and 24 h. The intracellular talaporfin sodium concentration that induced higher levels of late cell death with cell nuclei fragmentation in these cells was approximately 0.2 μg/mL. CONCLUSION We obtained the characteristics of late cell death occurrence and talaporfin sodium uptake to myocardial cell with various incubation times with talaporfin sodium.
Collapse
Affiliation(s)
- Emiyu Ogawa
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Naoki Machida
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Arisa Ito
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| |
Collapse
|
41
|
Kurotsu M, Yajima M, Takahashi M, Ogawa E, Arai T. Evaluation of human and bovine serum albumin on oxidation characteristics by a photosensitization reaction under complete binding of talaporfin sodium. Photodiagnosis Photodyn Ther 2015; 12:408-13. [PMID: 26072295 DOI: 10.1016/j.pdpdt.2015.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 12/30/2014] [Revised: 05/06/2015] [Accepted: 05/28/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND In order to investigate the therapeutic interaction of an extra-cellular photosensitization reaction, we evaluated the oxidation characteristics of human and bovine serum albumin by this reaction with talaporfin sodium under complete binding with albumin by spectroscopic analysis in a cell-free solution. METHODS The solution was composed of 20μg/ml talaporfin sodium and 2.1mg/ml human or bovine serum albumin. A 662nm laser light was used to irradiate the solution. Visible absorbance spectra of solutions were measured to obtain the oxidized and non-oxidized relative densities of albumin and talaporfin sodium before and after the photosensitization reaction. The defined oxidation path ratio of talaporfin sodium to albumin reflected the oxidation of the solution. Absorbance wavelengths at approximately 240 and 660nm were used to calculate normalized molecular densities of oxidized albumin and talaporfin sodium, respectively. RESULTS AND CONCLUSIONS The oxidation path ratio of talaporfin sodium to albumin when binding human serum albumin was approximately 1.8 times larger than that of bovine serum albumin during the photosensitization reaction from 1 to 50J/cm(2). We hypothesized that the oxidation path ratio results might have been caused by talaporfin sodium binding affinity or binding location difference between the two albumins, because the fluorescence lifetimes of talaporfin sodium bound to human and bovine serum albumin were 7.0 and 4.9ns, respectively. Therefore, the photodynamic therapeutic interaction might be stronger with human serum albumin than with bovine serum albumin in the case of extracellular photosensitization reaction.
Collapse
Affiliation(s)
- Mariko Kurotsu
- Graduate School of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama City, Kanagawa 223-8522, Japan.
| | - Masahiro Yajima
- School of Fundamental Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama City, Kanagawa 223-8522, Japan.
| | - Mei Takahashi
- School of Fundamental Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama City, Kanagawa 223-8522, Japan.
| | - Emiyu Ogawa
- School of Fundamental Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama City, Kanagawa 223-8522, Japan.
| | - Tsunenori Arai
- School of Fundamental Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama City, Kanagawa 223-8522, Japan.
| |
Collapse
|
42
|
Kimura T, Takatsuki S, Miyoshi S, Takahashi M, Ogawa E, Nakajima K, Kashimura S, Katsumata Y, Nishiyama T, Nishiyama N, Tanimoto Y, Aizawa Y, Arai T, Fukuda K. Electrical superior vena cava isolation using photodynamic therapy in a canine model. Europace 2015; 18:294-300. [DOI: 10.1093/europace/euv016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Accepted: 01/22/2015] [Indexed: 11/13/2022] Open
|
43
|
Ogawa E, Ito A, Arai T. Immediate response and cytotoxicity effect on myocardial cells by extracellular photosensitization reaction varying irradiance. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:5316-9. [PMID: 25571194 DOI: 10.1109/embc.2014.6944826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We investigated the extracellular photosensitization effect on myocardial cells using talaporfin sodium at various irradiance measuring cell lethality dependence on talaporfin sodium concentration and immediate response of intracellular Ca(2+) as a fundamental study of the application for tachyarrhythmia treatment. The myocardial cell lethality was measured 2 h after the photosensitization reaction by WST assay varying the irradiance from 0.12 to 0.66 W/cm(2). The intracellular Ca(2+) of myocardial cell was observed during and until 10 min after the extracellular photosensitization reaction using fluo-4 AM and a confocal microscope varying the irradiance. The linear increasing behavior of the myocardial cell lethality with talaporfin sodium concentration was similarly obtained in the case of 0.12 and 0.29 W/cm(2) in irradiance. The photocytotoxicity was not obtained in the case of 0.46 and 0.66 W/cm(2) in irradiance. The time response of necrosis occurrence after the beginning of the extracellular photosensitization reaction was decreased with the irradiance increasing. We prospect that it may be caused by oxygen depletion in our in vitro system using 96 well plate since the irradiance and talaporfin sodium concentration were higher comparing the in vitro conditions of the general PDT for cancer.
Collapse
|
44
|
Kurotsu M, Ogawa E, Arai T. Conduction block in novel cardiomyocyte electrical conduction line by photosensitization reaction. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:4787-90. [PMID: 25571062 DOI: 10.1109/embc.2014.6944694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We developed a novel cardiomyocyte electrical conduction line. We studied electrical conduction block by extra-cellular photosensitization reaction with this conduction line to study electrical blockade by the photosensitization reaction in vitro.
Collapse
|
45
|
Kimura T, Takatsuki S, Miyoshi S, Takahashi M, Ogawa E, Katsumata Y, Nishiyama T, Nishiyama N, Tanimoto Y, Aizawa Y, Arai T, Fukuda K. Optimal conditions for cardiac catheter ablation using photodynamic therapy. Europace 2015; 17:1309-15. [DOI: 10.1093/europace/euu335] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Accepted: 10/17/2014] [Indexed: 11/14/2022] Open
|
46
|
Mikoshiba Y, Ogawa E, Uchiyama R, Uchiyama A, Uhara H, Okuyama R. 5-Hydroxymethylcytosine is a useful marker to differentiate between dermatofibrosarcoma protuberans and dermatofibroma. J Eur Acad Dermatol Venereol 2014; 30:130-1. [PMID: 25087918 DOI: 10.1111/jdv.12614] [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: 11/28/2022]
Affiliation(s)
- Y Mikoshiba
- Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - E Ogawa
- Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - R Uchiyama
- Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - A Uchiyama
- Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - H Uhara
- Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - R Okuyama
- Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan
| |
Collapse
|
47
|
Urano F, Ono S, Tanaka T, Ueno K, Ogawa E, Mamehara A, Suzuki S, Tanaka H. THU0078 Hla-B27 Prevalence in Patients with Ankylosing Spondylitis in A Province of Japan, Compared with Tokyo. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1214] [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: 11/04/2022]
|
48
|
Kimura T, Takatsuki S, Miyoshi S, Ito A, Takahashi M, Ogawa E, Arai T, Fukuda K. ELECTRICAL SUPERIOR VENA CAVA ISOLATION USING PHOTODYNAMIC THERAPY. J Am Coll Cardiol 2014. [DOI: 10.1016/s0735-1097(14)60360-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
49
|
Ogawa E, Furusyo N, Hayashi J. Commentary: Triple therapy for patients with chronic hepatitis C and advanced fibrosis? Authors' reply. Aliment Pharmacol Ther 2013; 38:1408. [PMID: 24206375 DOI: 10.1111/apt.12539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Accepted: 10/08/2013] [Indexed: 12/19/2022]
Affiliation(s)
- E Ogawa
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.
| | | | | | | |
Collapse
|
50
|
Ogawa E, Furusyo N, Murata M, Ikezaki H, Ihara T, Hayashi T, Toyoda K, Okada K, Kainuma M, Kajiwara E, Takahashi K, Satoh T, Hayashi J. Valuable antiviral therapeutic options for the treatment of chronic hepatitis C patients with thrombocytopenia. J Viral Hepat 2013; 20:838-46. [PMID: 24304453 DOI: 10.1111/jvh.12109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 02/21/2013] [Indexed: 01/22/2023]
Abstract
Thrombocytopenia in patients with chronic hepatitis C may represent an obstacle for the initiation of antiviral treatment. The aim of this study was to evaluate factors predictive of successful pegylated interferon (PEG-IFN) α2b and ribavirin (RBV) treatment for patients with thrombocytopenia with no history of splenectomy or partial splenic embolization. One hundred and fifty-one chronic hepatitis C patients (genotype 1: n = 110, genotype 2: n = 41) with TCP (<100 × 10(9) /L) at baseline were enrolled. Pretreatment variables included interleukin 28B (IL28B) genotype (rs8099917) and homoeostasis model assessment of insulin resistance score (HOMA-IR). The kinetics of haemoglobin and platelets according to the inosine triphosphatase (ITPA) genotype (rs1127354) were investigated. Sustained virological response (SVR) was significantly more frequent in hepatitis C virus (HCV) genotype 2 (65.9%) than in genotype 1 (34.5%) patients (P < 0.0001). Multiple logistic regression analysis of HCV genotype 1 extracted IL28B TT genotype [odds ratio (OR) 5.97, P = 0.006] and HOMA-IR <2.5 (OR 7.14, P = 0.0016) as significant independent pretreatment predictors of SVR. The analyses of HCV genotype 2 showed that HOMA-IR was significantly related to SVR, but IL28B genotype was not. Patients with ITPA CC genotype showed a significant haemoglobin reduction and lower degree of platelets decrease than those with ITPA CA/AA genotypes. The most common reason for premature discontinuation of treatment was the development of hepatocellular carcinoma (n = 8, 5.3%). In conclusion, HOMA-IR is a useful predictor of SVR for patients with thrombocytopenia infected with HCV genotype 1 or 2 treated with PEG-IFNα2b and RBV. The inclusion of IL28B, ITPA genotypes and HOMA-IR adds valuable therapeutic information.
Collapse
Affiliation(s)
- E Ogawa
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan; Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|