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Negm AS, Collins JD, Bendel EC, Takahashi E, Knavel Koepsel EM, Gehling KJ, Burke CE, Barker DR, Stenzel WS, Bathke AM, Polites SF, Abcejo AS, Morris JM, Favazza C, Lu A, François CJ, Young P, Thompson SM. MR Lymphangiography in Lymphatic Disorders: Clinical Applications, Institutional Experience, and Practice Development. Radiographics 2024; 44:e230075. [PMID: 38271257 DOI: 10.1148/rg.230075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Lymphatic flow and anatomy can be challenging to study, owing to variable lymphatic anatomy in patients with diverse primary or secondary lymphatic pathologic conditions and the fact that lymphatic imaging is rarely performed in healthy individuals. The primary components of the lymphatic system outside the head and neck are the peripheral, retroperitoneal, mesenteric, hepatic, and pulmonary lymphatic systems and the thoracic duct. Multiple techniques have been developed for imaging components of the lymphatic system over the past century, with trade-offs in spatial, temporal, and contrast resolution; invasiveness; exposure to ionizing radiation; and the ability to obtain information on dynamic lymphatic flow. More recently, dynamic contrast-enhanced (DCE) MR lymphangiography (MRL) has emerged as a valuable tool for imaging both lymphatic flow and anatomy in a variety of congenital and acquired primary or secondary lymphatic disorders. The authors provide a brief overview of lymphatic physiology, anatomy, and imaging techniques. Next, an overview of DCE MRL and the development of an MRL practice and workflow in a hybrid interventional MRI suite incorporating cart-based in-room US is provided, with an emphasis on multidisciplinary collaboration. The spectrum of congenital and acquired lymphatic disorders encountered early in an MRL practice is provided, with emphasis on the diversity of imaging findings and how DCE MRL can aid in diagnosis and treatment of these patients. Methods such as DCE MRL for assessing the hepatic and mesenteric lymphatic systems and emerging technologies that may further expand DCE MRL use such as three-dimensional printing are introduced. ©RSNA, 2024 Test Your Knowledge questions for this article are available in the supplemental material.
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Affiliation(s)
- Ahmed S Negm
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Jeremy D Collins
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Emily C Bendel
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Edwin Takahashi
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Erica M Knavel Koepsel
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Kathleen J Gehling
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Courtney E Burke
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Devin R Barker
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Wayne S Stenzel
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Angela M Bathke
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Stephanie F Polites
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Arnoley S Abcejo
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Jonathan M Morris
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Christopher Favazza
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Aiming Lu
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Christopher J François
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Phillip Young
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
| | - Scott M Thompson
- From the Department of Radiology, Division of Cardiovascular Imaging (A.S.N., J.D.C., E.T., D.R.B., W.S.S., C.F., A.L., C.J.F., P.Y., S.M.T.), Department of Radiology, Division of Vascular and Interventional Radiology (E.C.B., E.T., K.J.G., C.E.B., A.M.B., J.M.M., S.M.T.), Department of Surgery, Division of Pediatric Surgery (S.F.P.), and Department of Anesthesiology (A.S.A.), Mayo Clinic, 200 1st St SW, Rochester, MN 55905; and Department of Radiology, Section of Interventional Radiology, University of Wisconsin, Madison, Wis (E.M.K.K.)
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Sandhu AT, Heidenreich PA, Borden W, Farmer SA, Ho PM, Hammond G, Johnson JC, Wadhera RK, Wasfy JH, Biga C, Takahashi E, Misra KD, Joynt Maddox KE. Value-Based Payment for Clinicians Treating Cardiovascular Disease: A Policy Statement From the American Heart Association. Circulation 2023; 148:543-563. [PMID: 37427456 DOI: 10.1161/cir.0000000000001143] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Clinician payment is transitioning from fee-for-service to value-based payment, with reimbursement tied to health care quality and cost. However, the overarching goals of value-based payment-to improve health care quality, lower costs, or both-have been largely unmet. This policy statement reviews the current state of value-based payment and provides recommended best practices for future design and implementation. The policy statement is divided into sections that detail different aspects of value-based payment: (1) key program design features (patient population, quality measurement, cost measurement, and risk adjustment), (2) the role of equity during design and evaluation, (3) adjustment of payment, and (4) program implementation and evaluation. Each section introduces the topic, describes important considerations, and lists examples from existing programs. Each section includes recommended best practices for future program design. The policy statement highlights 4 key themes for successful value-based payment. First, programs should carefully weigh the incentives between lowering cost and improving quality of care and ensure that there is adequate focus on quality of care. Second, the expansion of value-based payment should be a tool for improving equity, which is central to quality of care and should be a focal point of program design and evaluation. Third, value-based payment should continue to move away from fee for service toward more flexible funding that allows clinicians to focus resources on the interventions that best help patients. Last, successful programs should find ways to channel clinicians' intrinsic motivation to improve their performance and the care for their patients. These principles should guide the future development of clinician value-based payment models.
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Wahood W, Takahashi E, Rajan D, Misra S. National Trends in Complications of Vascular Access for Hemodialysis and Analysis of Racial Disparities Among Patients With End-Stage Renal Disease in the Inpatient Setting. Kidney Int Rep 2023; 8:1162-1169. [PMID: 37284686 PMCID: PMC10239770 DOI: 10.1016/j.ekir.2023.03.001] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/31/2023] [Accepted: 03/06/2023] [Indexed: 04/04/2023] Open
Abstract
Introduction The aim of this study is to assess the trends in access-related complications, as well as the impact of race on these complications, among admitted patients with end-stage kidney disease (ESKD) receiving hemodialysis. Methods A retrospective cohort study between 2005 and 2018 was performed using the National Inpatient Sample (NIS). Hospitalizations involving ESKD and hemodialysis were identified. There were 9,246,553 total admissions involving ESKD and hemodialysis, of which 1,167,886 (12.6%) had complications. Trends in complications were assessed and compared among races. Results There was a decreasing trend in rates of mechanical (trend: -0.05% per year; P < 0.001), inflammatory or infectious (-0.48%; P < 0.001), and other (-0.19%; P < 0.001) complications from 2005 to 2018. Non-White patients had a greater magnitude in the decrease in trends in rates of complications compared to White patients (-0.69% per year vs. -0.57%; P < 0.001). Compared to the White patients, Black patients (odds ratio [OR]: 1.26; P < 0.001) and those of the other races (OR: 1.11; P < 0.001) had higher odds of complications. These differences were also statistically significant among lower socioeconomic classes (75 percentile vs. 0-25 percentile: P = 0.009) and within southern states (vs. Northeast: P < 0.001). Conclusion Although there was an overall decrease in the trends of dialysis-associated complications requiring hospitalization among ESKD patients receiving hemodialysis, non-White patients have higher odds of complications compared to White patients. The findings in this study emphasize the need for more equitable care for hemodialysis patients.
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Affiliation(s)
- Waseem Wahood
- Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida, USA
| | - Edwin Takahashi
- Department of Interventional Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Dheeraj Rajan
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Sanjay Misra
- Department of Interventional Radiology, Mayo Clinic, Rochester, Minnesota, USA
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Tesfalidet S, Thompson S, Welch B, Frimpong R, Reisenauer C, Flemming C, Moynagh M, Schmit G, Atwell T, Takahashi E. Abstract No. 170 Bleeding Complications Requiring Therapeutic Trans-Arterial Embolization Following Percutaneous Cryoablation for cT1b and cT2 Renal Masses without and with Pre-ablation Prophylactic Trans-Arterial Embolization. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.225] [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: 02/27/2023] Open
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Brunton N, Takahashi E, Karim M, McBane RD. BONY MAY THURNER: AN UNUSUAL CASE OF PROVOKED DEEP VEIN THROMBOSIS. J Am Coll Cardiol 2023. [DOI: 10.1016/s0735-1097(23)03971-2] [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: 03/06/2023]
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Wahoud W, Takahashi E, Stockland A, Reisenauer C, Misra S. Abstract No. 507 Contemporary Trends in Renal Artery Stenting for Patients with Renovascular Disease in the United States: Effect of Clinical Trials on Management. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.365] [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: 02/26/2023] Open
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Ortug A, Yuzbasioglu N, Akalan N, Levman J, Takahashi E. Preoperative and postoperative high angular resolution diffusion imaging tractography of cerebellar pathways in posterior fossa tumors. Clin Anat 2022; 35:1085-1099. [PMID: 35560729 PMCID: PMC9547814 DOI: 10.1002/ca.23914] [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: 04/29/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 11/12/2022]
Abstract
This study aimed to utilize high angular resolution diffusion magnetic resonance imaging (HARDI) tractography in the mapping of the pathways of the cerebellum associated with posterior fossa tumors (infratentorial neoplasms) and to determine whether it is useful for preoperative and postoperative evaluation. Retrospective data from 30 patients (age 2-16 yr) with posterior fossa tumor (17 low grade, 13 high grade) and 30 age-sex-matched healthy controls were used. Structural and diffusion-weighted images were collected at a 3-tesla scanner. Tractography was performed using Diffusion Toolkit software, Q-ball model, FACT algorithm, and angle threshold of 45 degrees. Manually assessed regions of interest were placed to identify reconstructed fiber pathways passing through the superior, medial, and inferior cerebellar peduncles for the preoperative, postoperative, and healthy control groups. Fractional anisotropy (FA), apparent diffusion coefficient (ADC), and track volume measures were obtained and analyzed. Statistically significant differences were found between the preop/postop, preop/control, and postop/control comparisons for the volume of the tracts in both groups. Displacement and disruption of the pathways seemed to differ in relation to the severity of the tumor. The loss of pathways after the operation was associated with selective resection during surgery due to tumor infiltration. There were no FA differences but significantly higher ADC in low-grade tumors, and no difference in both FA and ADC in high-grade tumors. The effects of posterior fossa tumors on cerebellar peduncles and reconstructed pathways were successfully evaluated by HARDI tractography. The technique appears to be useful not only for preoperative but also for postoperative evaluation.
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Affiliation(s)
- A. Ortug
- Department of Anatomy, School of Medicine, Istanbul Medipol University, Istanbul, 34815, Turkey
- Division of Newborn Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - N. Yuzbasioglu
- Division of Newborn Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - N. Akalan
- Department of Neurosurgery, School of Medicine, Istanbul Medipol University, Istanbul, 34815, Turkey
| | - J. Levman
- Department of Computer Science, St. Francis Xavier University, Antigonish, Nova Scotia, B2G 2W5, Canada
| | - E. Takahashi
- Division of Newborn Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
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Nedderman W, Thompson S, Takahashi E, Knavel E, Reisenauer C, Bendel E. Abstract No. 38 Intracardiac shunts among patients undergoing oil-based contrast lymphangiography: prevalence by echocardiography and rate of systemic arterial embolic complications. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Obayashi K, Nagamine A, Yashima H, Ohshima S, Uchiyama C, Takahashi E, Takahashi Y, Araki T, Yamamoto K. Comparison of the Antiemetic Effect of Aprepitant/granisetron and Palonosetron Combined with Dexamethasone in Gynecological Cancer Patients Treated with Paclitaxel and Carboplatin Combination Regimen. Pharmazie 2022; 77:157-161. [PMID: 35655378 DOI: 10.1691/ph.2022.12000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A triple antiemetic therapy combining aprepitant (APR) with conventional double antiemetic therapy, including 5-hydroxytryptamine 3 receptor antagonist (5-HT₃-RA) and dexamethasone (DEX), is recommended for preventing chemotherapy-induced nausea and vomiting induced by a carboplatin (CBDCA) regimen. However, consensus on the additive effects of APR for gynecological patients on a combined regimen of paclitaxel and CBDCA (TC regimen) has yet to be reached. This retrospective study investigated the antiemetic effects of palonosetron and DEX (PD therapy) and granisetron and DEX with APR (GDA therapy) in patients with gynecologic cancer and who underwent their first TC regimen cycle between April 2017 and March 2020 at the Gunma University Hospital Outpatient Chemotherapy Center. The results showed that the complete response rate of the 92 patients who underwent PD therapy (PD group) and the 46 patients who underwent GDA therapy (GDA group) were both 80.4% (p = 1.000), and the complete control rates of the PD and GDA groups were 78.3% and 80.4%, respectively (p = 0.828), resulting in no significant difference. Furthermore, we observed no significant difference between the PD and GDA groups in the incidence of grade ≥2 nausea, vomiting, and anorexia (nausea: 7.6% vs. 0%, p = 0.095; vomiting: 4.3% vs. 0%, p = 0.301; and anorexia: 9.8% vs. 2.2%, p = 0.164). Concerning adverse events, compared to the PD group, the GDA group showed significantly higher incidence of grade ≥2 malaise (7.6% vs. 19.6%, p = 0.039). Given the lack of difference in the antiemetic effects of PD and GDA therapies, antiemetic therapy should be selected carefully for individual patients by accounting for the incidence of adverse reactions and interactions with APR.
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Affiliation(s)
- K Obayashi
- Laboratory of Clinical Pharmacy, Faculty of Pharmacy, Takasaki University of Health and Welfare; Education Center for Clinical Pharmacy, Faculty of Pharmacy, Takasaki University of Health and Welfare; Department of Clinical Pharmacology and Therapeutics, Gunma University Graduate School of Medicine; Laboratory of Clinical Pharmacy, Faculty of Pharmacy, Takasaki University of Health and Welfare, 60 Nakaorui-machi, Takasaki-shi, Gunma, 370-0033, Japan;,
| | - A Nagamine
- Education Center for Clinical Pharmacy, Faculty of Pharmacy, Takasaki University of Health and Welfare; Department of Clinical Pharmacology and Therapeutics, Gunma University Graduate School of Medicine
| | - H Yashima
- Department of Clinical Pharmacology and Therapeutics, Gunma University Graduate School of Medicine; Department of Pharmacy, Gunma University Hospital, Gunma, Japan
| | - S Ohshima
- Department of Pharmacy, Gunma University Hospital, Gunma, Japan
| | - C Uchiyama
- Laboratory of Clinical Pharmacy, Faculty of Pharmacy, Takasaki University of Health and Welfare; Department of Pharmacy, Gunma University Hospital, Gunma, Japan
| | - E Takahashi
- Laboratory of Clinical Pharmacy, Faculty of Pharmacy, Takasaki University of Health and Welfare; Education Center for Clinical Pharmacy, Faculty of Pharmacy, Takasaki University of Health and Welfare
| | - Y Takahashi
- Education Center for Clinical Pharmacy, Faculty of Pharmacy, Takasaki University of Health and Welfare; Department of Clinical Pharmacology and Therapeutics, Gunma University Graduate School of Medicine
| | - T Araki
- Department of Clinical Pharmacology and Therapeutics, Gunma University Graduate School of Medicine; Department of Pharmacy, Gunma University Hospital, Gunma, Japan
| | - K Yamamoto
- Department of Clinical Pharmacology and Therapeutics, Gunma University Graduate School of Medicine; Department of Pharmacy, Gunma University Hospital, Gunma, Japan
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Piryani AK, Kilari S, Takahashi E, DeMartino RR, Mandrekar J, Dietz AB, Misra S. Rationale and Trial Design of MesEnchymal Stem Cell Trial in Preventing Venous Stenosis of Hemodialysis Vascular Access Arteriovenous Fistula (MEST AVF Trial). Kidney360 2021; 2:1945-1952. [PMID: 35419530 PMCID: PMC8986037 DOI: 10.34067/kid.0005182021] [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] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/10/2021] [Indexed: 02/04/2023]
Abstract
Background Hemodialysis arteriovenous fistulas (AVFs) are the preferred vascular access for patients on hemodialysis. In the Hemodialysis Fistula Maturation Study, 44% of the patients achieved unassisted maturation of their fistula without needing an intervention. Venous neointimal hyperplasia (VNH) and subsequent venous stenosis are responsible for lack of maturation. There are no therapies that can prevent VNH/VS formation. The goal of this paper is to present the background, rationale, and trial design of an innovative phase 1/2 clinical study that is investigating the safety of autologous adipose-derived mesenchymal stem cells delivered locally to the adventitia of newly created upper extremity radiocephalic (RCF) or brachiocephalic fistula (BCF). Methods The rationale and preclinical studies used to obtain a physician-sponsored investigational new drug trial are discussed. The trial design and end points are discussed. Results This is an ongoing trial that will complete this year. Conclusion This is a phase 1/2 single-center, randomized trial that will investigate the safety and efficacy of autologous AMSCs in promoting maturation in new upper-extremity AVFs.Clinical Trial registration number: NCT02808208.
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Affiliation(s)
| | | | | | | | - Jay Mandrekar
- Department of Biostatistics, Mayo Clinic, Rochester, Minnesota
| | - Allan B. Dietz
- Division of Transfusion Medicine and Laboratory Medicine, Mayo Clinic, Rochester, Minnesota
| | - Sanjay Misra
- Department of Radiology, Mayo Clinic, Rochester, Minnesota
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
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11
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Linch F, Thompson S, Jin M, Frimpong R, Reisenauer C, Takahashi E. Abstract No. 185 Impact of anticoagulation and antiplatelet therapy on dialysis catheter fibrin sheath formation. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.191] [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: 10/21/2022] Open
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12
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Singh AK, Cai C, Kilari S, Zhao C, Simeon ML, Takahashi E, Edelman ER, Kong H(J, Macedo T, Singh RJ, Urban MW, Kumar R, Misra S. 1α,25-Dihydroxyvitamin D 3 Encapsulated in Nanoparticles Prevents Venous Neointimal Hyperplasia and Stenosis in Porcine Arteriovenous Fistulas. J Am Soc Nephrol 2021; 32:866-885. [PMID: 33627344 PMCID: PMC8017547 DOI: 10.1681/asn.2020060832] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 06/16/2020] [Accepted: 12/24/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Few therapies prevent venous neointimal hyperplasia (VNH) and venous stenosis (VS) formation in arteriovenous fistulas (AVF). Expression of the immediate early response gene X-1 (Iex-1), also known as Ier3, is associated with VNH and stenosis in murine AVFs. The study aimed to determine if local release of Ier3 long-acting inhibitor 1α,25(OH)2D3 from poly(lactic-co-glycolic acid) (PLGA) nanoparticles embedded in a thermosensitive Pluronic F127 hydrogel (1,25 NP) could affect VNH/VS formation in a large animal model. METHODS Immediately after AVF creation in a porcine model of renal failure, 1,25 NP or vehicle control was injected into the adventitia space of AVF outflow veins. Scanning electron microscopy and dynamic light scattering characterized drug and control nanoparticles. Animals were sacrificed 3 and 28 days later for gene expression, immunohistologic, magnetic resonance imaging and angiography, and ultrasound analyses. Whole transcriptome RNA sequencing with differential gene expression analysis was performed on outflow veins of AVF. RESULTS Encapsulation of 1α,25(OH)2D3 in PLGA nanoparticles formed nanoparticles of uniform size that were similar to nanoparticles without 1α,25(OH)2D3. The 1,25 NP-treated AVFs exhibited lower VNH/VS, Ier3 gene expression, and IER-3, MCP-1, CD68, HIF-1α, and VEGF-A immunostaining, fibrosis, and proliferation. Blood flow and lumen area increased significantly, whereas peak systolic velocity and wall shear stress decreased. Treatment increased Young's modulus and correlated with histologic assessment of fibrosis and with no evidence of vascular calcification. RNA sequencing analysis showed changes in the expression of genes associated with inflammatory, TGFβ1, and apoptotic pathways. CONCLUSIONS Local release of 1,25 NP improves AVF flow and hemodynamics, and reduces stenosis in association with reduction in inflammation, apoptosis, and fibrosis in a porcine model of arteriovenous fistula.
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Affiliation(s)
- Avishek K. Singh
- Department of Radiology, Vascular and Interventional Translational Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Chuanqi Cai
- Department of Radiology, Vascular and Interventional Translational Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Sreenivasulu Kilari
- Department of Radiology, Vascular and Interventional Translational Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Chenglei Zhao
- Department of Radiology, Vascular and Interventional Translational Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Michael L. Simeon
- Department of Radiology, Vascular and Interventional Translational Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Edwin Takahashi
- Department of Radiology, Vascular and Interventional Translational Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Elazer R. Edelman
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts,Department of Internal Medicine, Brigham and Women’s Hospital, Massachusetts, Boston, Massachusetts
| | - Hyunjoon (Joon) Kong
- Chemical and Biomolecular Engineering, Carle Illinois College of Medicine, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Thanila Macedo
- Department of Radiology, Vascular and Interventional Translational Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Ravinder J. Singh
- Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Matthew W. Urban
- Department of Radiology, Vascular and Interventional Translational Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Rajiv Kumar
- Division of Nephrology and Hypertension, Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Sanjay Misra
- Department of Radiology, Vascular and Interventional Translational Laboratory, Mayo Clinic, Rochester, Minnesota
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Isono K, Takahashi E, Miyoshi I, Tsuneto M, Hikosaka-Kuniishi M, Yamane T, Yamazaki H. Simultaneous Fluorescent Identification of Odontoblasts and Ameloblasts. J Dent Res 2020; 100:532-541. [PMID: 33289448 DOI: 10.1177/0022034520974576] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The tooth is mainly composed of dentin and enamel. Identification of dentin-producing odontoblasts and enamel-producing ameloblasts using reporter techniques is useful to study tooth development and regeneration with tissue engineering. Ameloblasts express Amelogenin, Ameloblastin, Enamelin, and Amelotin, whereas odontoblasts express Dentin sialophosphoprotein (Dspp) and Dentin matrix protein1 (Dmp1). Although there are several transgenic lines using promoter elements or bacterial artificial chromosomes (BACs) to label odontoblasts and ameloblasts, there is a possibility that the expression patterns vary from the endogenous genes. Here, we established 2 lines of mice where tdTomato was knocked into the second exon of X-chromosomal Amelogenin (Amelx), and green fluorescent protein (GFP) was knocked into the second exon of Dspp. tdTomato and GFP were highly expressed on secretory ameloblasts and secretory and fully differentiated odontoblasts, respectively. In addition, DSPP and AMELX were not produced in the dentin matrix and enamel matrix of DsppGFP/GFP and AmelxtdTomato male mice (as representative of AmelxtdTomato/Y hemizygous male mice), respectively. Moreover, micro-computed tomography analysis of AmelxtdTomato male mice revealed a notable reduction in enamel volume but increased dentin mineral density. DsppGFP/GFP mice had reduced dentin mineral density. To identify odontoblasts and ameloblasts from developing tooth, we examined the expression of mesenchymal cell surface molecules CD90, CD166 and epithelial cell surface molecules CD49f, Epcam1 with fluorescence on odontoblasts and ameloblasts in these mice. We found that GFP+ odontoblasts and tdTomato+ ameloblasts in tooth germ from 0.5-d-old DsppGFP/+ mice and AmelxtdTomato male mice were enriched in CD45-/Ter119-/Epcam1-/CD90+/Integrin α4+cell fractions and CD45-/Ter119-/Epcam1+/CD49f+/CD147+ cell fractions, respectively. By using antibodies against mesenchymal and epithelial cell surface molecules and fluorescence, we can easily distinguish odontoblasts from ameloblasts and isolate each cell for further studies. These mice would serve as useful models for tooth development and regeneration as well as provide concurrent observation for the differentiation processes of odontoblasts and ameloblasts in vivo and in vitro.
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Affiliation(s)
- K Isono
- Department of Stem Cells and Developmental Biology, Division of Fundamental Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - E Takahashi
- Support Unit for Animal Resources Development, Research Resources Division, RIKEN Center for Brain Science, Wako-shi, Saitama, Japan
| | - I Miyoshi
- Department of Laboratory Animal Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - M Tsuneto
- Division of Regenerative Medicine and Therapeutics, Department of Genetic Medicine and Regenerative Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Tottori, Japan
| | - M Hikosaka-Kuniishi
- Department of Stem Cells and Developmental Biology, Division of Fundamental Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - T Yamane
- Department of Stem Cells and Developmental Biology, Division of Fundamental Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - H Yamazaki
- Department of Stem Cells and Developmental Biology, Division of Fundamental Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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Lara-Breitinger K, Rosenbaum A, El Hajj S, Takahashi E, Alkhouli MA, Behfar A, Bennett C. TRANSIENT BOWEL ISCHEMIA FROM MIGRATION OF AN AXILLARY INTRA-AORTIC BALLOON PUMP. J Am Coll Cardiol 2020. [DOI: 10.1016/s0735-1097(20)33082-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Takahashi E, Sawabuchi T, Kimoto T, Sakai S, Kido H. Lactobacillus delbrueckii ssp. bulgaricus OLL1073R-1 feeding enhances humoral immune responses, which are suppressed by the antiviral neuraminidase inhibitor oseltamivir in influenza A virus-infected mice. J Dairy Sci 2019; 102:9559-9569. [PMID: 31495632 DOI: 10.3168/jds.2019-16268] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 07/17/2019] [Indexed: 12/14/2022]
Abstract
Antiviral neuraminidase inhibitors, such as oseltamivir, zanamivir, and peramivir, are widely used for treatment of influenza virus infection. We reported previously that oseltamivir inhibits the viral growth cycle, ameliorates symptoms, and reduces viral antigen quantities. Suppressed viral antigen production, however, induces a reduction of acquired antiviral humoral immunity, and increases the incidence of re-infection rate in the following year. To achieve effective treatment of influenza virus infection, it is necessary to overcome these adverse effects of antiviral neuraminidase inhibitors. Feeding of yogurt fermented with Lactobacillus delbrueckii ssp. bulgaricus (L. bulgaricus) OLL1073R-1 is reported to have immune-stimulatory effects on influenza virus infection in mice and humans. In the present study, we assessed the effect of feeding L. bulgaricus OLL1073R-1 yogurt cultures (YC) on local and systemic humoral immune responses, which were suppressed by oseltamivir treatment, in mice infected with influenza A virus. Yogurt culture (1.14 × 108 cfu/0.4 mL per mouse per day) or sterile water (vehicle) was administered by intragastric gavage for 35 d. At d 22, influenza A virus/Puerto Rico/8/34 (H1N1) (PR8; 0.5 pfu/15 μL per mouse) was instilled intranasally, followed immediately by oral administration of oseltamivir (50 μg/100 μL per mouse, twice daily) or 5% methylcellulose (100 μL/mouse) as a vehicle for 13 d. Titers of anti-PR8-specific IgG and IgA in serum and mucosal secretory IgA (S-IgA) and IgG in bronchoalveolar lavage fluid (BALF) were analyzed by ELISA at 14 d after infection. Oseltamivir significantly suppressed the induction of anti-PR8-specific IgG and IgA in serum and S-IgA and IgG in BALF after infection. Feeding YC mildly but significantly stimulated production of PR8-specific IgA in serum, S-IgA in BALF, and IgG in serum without changing the IgG2a:IgG1 ratio. We analyzed the neutralizing activities against PR8 in serum and BALF and found that oseltamivir also reduced protective immunity, and YC feeding abrogated this effect. The immune-stimulatory tendency of YC on anti-PR8-specific IgA and IgG titers in serum and BALF was also detected in mice re-infected with PR8, but the effect was insignificant, unlike the effect of YC in the initial infection.
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Affiliation(s)
- E Takahashi
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, 3-15-18, Kuramoto-cho, Tokushima-city, Tokushima, 770-8503, Japan
| | - T Sawabuchi
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, 3-15-18, Kuramoto-cho, Tokushima-city, Tokushima, 770-8503, Japan
| | - T Kimoto
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, 3-15-18, Kuramoto-cho, Tokushima-city, Tokushima, 770-8503, Japan
| | - S Sakai
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, 3-15-18, Kuramoto-cho, Tokushima-city, Tokushima, 770-8503, Japan
| | - H Kido
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, 3-15-18, Kuramoto-cho, Tokushima-city, Tokushima, 770-8503, Japan.
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Takahashi E, Misra S. Abstract No. 477 Endovascular arteriovenous dialysis fistula intervention: outcomes and factors contributing to fistula failure. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.558] [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: 11/27/2022] Open
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17
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Indalao IL, Sawabuchi T, Takahashi E, Kido H. Correction to: IL-1b is a key cytokine that induces trypsin upregulation in the influenza virus-cytokine-trypsin cycle. Arch Virol 2018; 163:3487. [PMID: 30264292 PMCID: PMC6245123 DOI: 10.1007/s00705-018-4043-z] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The original article can be found online.
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Affiliation(s)
- I L Indalao
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, 770-8503, Japan
| | - T Sawabuchi
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, 770-8503, Japan
| | - E Takahashi
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, 770-8503, Japan
| | - H Kido
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, 770-8503, Japan.
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18
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Kajiyama T, Yasuda T, Yamanaka T, Shimizu K, Shimizu T, Takahashi E, Ujiie A, Yamamoto K, Koike T, Nishitani Y. Effect of Addition of Styrene-Ethylene/Butylene-Styrene and the Type of Mica on the Mechanical Properties of Mica-Filled Polyethylene/Polypropylene Blends. INT POLYM PROC 2018. [DOI: 10.3139/217.3568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractThe mechanical properties of polyethylene (PE)/polypropylene (PP)/styrene-ethylene/butylene-styrene (SEBS)/mica composites were investigated as a model composition. Four types of mica with different particle sizes and different aspect ratios were used. These composites were extruded by a twin-screw extruder and subsequently injection molded, and their mechanical properties, including their tensile, bending, and impact properties were evaluated. The addition of mica to PE/PP/SEBS effectively improved its mechanical properties; the addition of SEBS as a compatibilizer likewise enhanced the mechanical properties compared with those of PE/PP composites without SEBS. The use of larger average particle size and higher aspect ratio mica, such as M-35, M-27, and P-33, effectively increased the tensile and bending properties of the PE/PP/SEBS/mica composites. The morphologies of the composites with an added mica as observed by scanning electron microscopy, showed good dispersion between the matrix polymer and the mica.
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Affiliation(s)
- T. Kajiyama
- 1Jonan Branch, Regional Technology Support Division, Commercialization Support Department, Tokyo Metropolitan Industrial Technology Research Institute, Tokyo, Japan
| | - T. Yasuda
- 2Surface Coating and Chemical Technology Group, Division II, Research and Development Department, Tokyo Metropolitan Industrial Technology Research Institute, Tokyo, Japan
| | - T. Yamanaka
- 3Administration Planning Section, Management and Planning Department, Tokyo Metropolitan Industrial Technology Research Institute, Tokyo, Japan
| | - K. Shimizu
- 4Advanced Materials Department Sector, Technological Development Support Division, Commercialization Support Department, Tokyo Metropolitan Industrial Technology Research Institute, Tokyo, Japan
| | | | | | - A. Ujiie
- 5Miraijushi Co., Ltd., Tokyo, Japan
| | - K. Yamamoto
- 6Department of Mechanical Engineering, Faculty of Engineering, Kogakuin University, Tokyo, Japan
| | - T. Koike
- 6Department of Mechanical Engineering, Faculty of Engineering, Kogakuin University, Tokyo, Japan
| | - Y. Nishitani
- 6Department of Mechanical Engineering, Faculty of Engineering, Kogakuin University, Tokyo, Japan
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Numata Y, Kaneuji A, Kerboull L, Takahashi E, Ichiseki T, Fukui K, Tsujioka J, Kawahara N. Biomechanical behaviour of a French femoral component with thin cement mantle: The 'French paradox' may not be a paradox after all. Bone Joint Res 2018; 7:485-493. [PMID: 30123498 PMCID: PMC6076357 DOI: 10.1302/2046-3758.77.bjr-2017-0288.r2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective Cement thickness of at least 2 mm is generally associated with more favorable results for the femoral component in cemented hip arthroplasty. However, French-designed stems have shown favorable outcomes even with thin cement mantle. The biomechanical behaviors of a French stem, Charnley-Marcel-Kerboull (CMK) and cement were researched in this study. Methods Six polished CMK stems were implanted into a composite femur, and one million times dynamic loading tests were performed. Stem subsidence and the compressive force at the bone-cement interface were measured. Tantalum ball (ball) migration in the cement was analyzed by micro CT Results The cement thickness of 95 % of the proximal and middle region was less than 2.5 mm. A small amount of stem subsidence was observed even with collar contact. The greatest compressive force was observed at the proximal medial region and significant positive correlation was observed between stem subsidence and compressive force. 9 of 11 balls in the medial region moved to the horizontal direction more than that of the perpendicular direction. The amount of ball movement distance in the perpendicular direction was 59 to 83% of the stem subsidence, which was thought to be slip in the cement of the stem. No cement defect and no cement breakage were seen. Conclusion Thin cement in CMK stems produced effective hoop stress without excessive stem and cement subsidence. Polished CMK stem may work like force-closed fixation in short-term experiment. Cite this article: Y. Numata, A. Kaneuji, L. Kerboull, E. Takahashi, T. Ichiseki, K. Fukui, J. Tsujioka, N. Kawahara. Biomechanical behaviour of a French femoral component with thin cement mantle: The ‘French paradox’ may not be a paradox after all. Bone Joint Res 2018;7:485–493. DOI: 10.1302/2046-3758.77.BJR-2017-0288.R2.
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Affiliation(s)
- Y Numata
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - A Kaneuji
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - L Kerboull
- Marcel Kerboull Institute, Paris, France
| | - E Takahashi
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - T Ichiseki
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - K Fukui
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - J Tsujioka
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - N Kawahara
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
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Miyazaki Y, Niino M, Takahashi E, Fukazawa T, Amino I, Nakano F, Nakamura M, Akimoto S, Minami N, Fujiki N, Doi S, Kikuchi S. B cell-activating factor of the TNF family expands circulating transitional B cells in multiple sclerosis patients treated with fingolimod. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2224] [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: 11/15/2022]
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Maekawa M, Watanabe A, Iwayama Y, Kimura T, Hamazaki K, Balan S, Ohba H, Hisano Y, Nozaki Y, Ohnishi T, Toyoshima M, Shimamoto C, Iwamoto K, Bundo M, Osumi N, Takahashi E, Takashima A, Yoshikawa T. Polyunsaturated fatty acid deficiency during neurodevelopment in mice models the prodromal state of schizophrenia through epigenetic changes in nuclear receptor genes. Transl Psychiatry 2017; 7:e1229. [PMID: 28872641 PMCID: PMC5639238 DOI: 10.1038/tp.2017.182] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/26/2017] [Accepted: 07/06/2017] [Indexed: 12/13/2022] Open
Abstract
The risk of schizophrenia is increased in offspring whose mothers experience malnutrition during pregnancy. Polyunsaturated fatty acids (PUFAs) are dietary components that are crucial for the structural and functional integrity of neural cells, and PUFA deficiency has been shown to be a risk factor for schizophrenia. Here, we show that gestational and early postnatal dietary deprivation of two PUFAs-arachidonic acid (AA) and docosahexaenoic acid (DHA)-elicited schizophrenia-like phenotypes in mouse offspring at adulthood. In the PUFA-deprived mouse group, we observed lower motivation and higher sensitivity to a hallucinogenic drug resembling the prodromal symptoms in schizophrenia. Furthermore, a working-memory task-evoked hyper-neuronal activity in the medial prefrontal cortex was also observed, along with the downregulation of genes in the prefrontal cortex involved in oligodendrocyte integrity and the gamma-aminobutyric acid (GABA)-ergic system. Regulation of these genes was mediated by the nuclear receptor genes Rxr and Ppar, whose promoters were hyper-methylated by the deprivation of dietary AA and DHA. In addition, the RXR agonist bexarotene upregulated oligodendrocyte- and GABA-related gene expression and suppressed the sensitivity of mice to the hallucinogenic drug. Notably, the expression of these nuclear receptor genes were also downregulated in hair-follicle cells from schizophrenia patients. These results suggest that PUFA deficiency during the early neurodevelopmental period in mice could model the prodromal state of schizophrenia through changes in the epigenetic regulation of nuclear receptor genes.
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Affiliation(s)
- M Maekawa
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan,Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. E-mail: or
| | - A Watanabe
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - Y Iwayama
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - T Kimura
- Department of Alzheimer's Disease Research, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - K Hamazaki
- Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - S Balan
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - H Ohba
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - Y Hisano
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - Y Nozaki
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - T Ohnishi
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - M Toyoshima
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - C Shimamoto
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - K Iwamoto
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - M Bundo
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - N Osumi
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - E Takahashi
- Support Unit for Animal Resources Development, RIKEN Brain Science Institute, Saitama, Japan
| | - A Takashima
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan,Department of Life Sciences, Graduate School of Science, Gakushuin University, Tokyo, Japan
| | - T Yoshikawa
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan,Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. E-mail: or
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Takahashi E, Kaneuji A, Tsuda R, Numata Y, Ichiseki T, Fukui K, Kawahara N. The influence of cement thickness on stem subsidence and cement creep in a collarless polished tapered stem: When are thick cement mantles detrimental? Bone Joint Res 2017; 6:351-357. [PMID: 28566327 PMCID: PMC5457643 DOI: 10.1302/2046-3758.65.bjr-2017-0028.r1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 03/14/2017] [Indexed: 12/30/2022] Open
Abstract
Objectives Favourable results for collarless polished tapered stems have been reported, and cement creep due to taper slip may be a contributing factor. However, the ideal cement thickness around polished stems remains unknown. We investigated the influence of cement thickness on stem subsidence and cement creep. Methods We cemented six collarless polished tapered (CPT) stems (two stems each of small, medium and large sizes) into composite femurs that had been reamed with a large CPT rasp to achieve various thicknesses of the cement mantle. Two or three tantalum balls were implanted in the proximal cement in each femur. A cyclic loading test was then performed for each stem. The migration of the balls was measured three-dimensionally, using a micro-computed tomography (CT) scanner, before and after loading. A digital displacement gauge was positioned at the stem shoulder, and stem subsidence was measured continuously by the gauge. Final stem subsidence was measured at the balls at the end of each stem. Results A strong positive correlation was observed between mean cement thickness and stem subsidence in the CT slices on the balls. In the small stems, the balls moved downward to almost the same extent as the stem. There was a significant negative correlation between cement thickness and the horizontal:downward ratio of ball movement. Conclusion Collarless polished tapered stems with thicker cement mantles resulted in greater subsidence of both stem and cement. This suggests that excessive thickness of the cement mantle may interfere with effective radial cement creep. Cite this article: E. Takahashi, A. Kaneuji, R. Tsuda, Y. Numata, T. Ichiseki, K. Fukui, N. Kawahara. The influence of cement thickness on stem subsidence and cement creep in a collarless polished tapered stem: When are thick cement mantles detrimental? Bone Joint Res 2017;6:–357. DOI: 10.1302/2046-3758.65.BJR-2017-0028.R1.
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Affiliation(s)
- E Takahashi
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - A Kaneuji
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - R Tsuda
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - Y Numata
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - T Ichiseki
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - K Fukui
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - N Kawahara
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
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Takahashi E, Schmit G, Atwell T, Schmitz J, Callstrom M, Geske J, Kurup A. Efficacy and safety of intrahepatic cholangiocarcinoma ablation. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Takahashi E, McKusick M, Bjarnason H, Mara K, Harmsen W, Misra S. Contrast-induced nephropathy following renal artery stenting: predictors and outcomes. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.684] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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25
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Bengtson Nash SM, Baddock MC, Takahashi E, Dawson A, Cropp R. Domoic Acid Poisoning as a Possible Cause of Seasonal Cetacean Mass Stranding Events in Tasmania, Australia. Bull Environ Contam Toxicol 2017; 98:8-13. [PMID: 27530123 DOI: 10.1007/s00128-016-1906-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 08/09/2016] [Indexed: 06/06/2023]
Abstract
The periodic trend to cetacean mass stranding events in the Australian island state of Tasmania remains unexplained. This article introduces the hypothesis that domoic acid poisoning may be a causative agent in these events. The hypothesis arises from the previously evidenced role of aeolian dust as a vector of iron input to the Southern Ocean; the role of iron enrichment in Pseudo-nitzschia bloom proliferation and domoic acid production; and importantly, the characteristic toxicosis of domoic acid poisoning in mammalian subjects leading to spatial navigation deficits. As a pre-requisite for quantitative evaluation, the plausibility of this hypothesis was considered through correlation analyses between historical monthly stranding event numbers, mean monthly chlorophyll concentration and average monthly atmospheric dust loading. Correlation of these variables, which under the domoic acid stranding scenario would be linked, revealed strong agreement (r = 0.80-0.87). We therefore advocate implementation of strategic quantitative investigation of the role of domoic acid in Tasmanian cetacean mass stranding events.
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Affiliation(s)
- S M Bengtson Nash
- Southern Ocean Persistent Organic Pollutants Program (SOPOPP), Environmental Futures Research Institute (EFRI), School of Environment, Griffith University, 170 Kessels Road, Nathan, QLD, 4111, Australia.
| | - M C Baddock
- Department of Geography, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | - E Takahashi
- Department of Science, Information, Technology and Innovation (DSITI), Brisbane, QLD, 4001, Australia
| | - A Dawson
- Southern Ocean Persistent Organic Pollutants Program (SOPOPP), Environmental Futures Research Institute (EFRI), School of Environment, Griffith University, 170 Kessels Road, Nathan, QLD, 4111, Australia
| | - R Cropp
- School of Environment, Griffith University, Nathan, QLD, 4111, Australia
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Indalao IL, Sawabuchi T, Takahashi E, Kido H. IL-1β is a key cytokine that induces trypsin upregulation in the influenza virus-cytokine-trypsin cycle. Arch Virol 2016; 162:201-211. [PMID: 27714503 PMCID: PMC5225228 DOI: 10.1007/s00705-016-3093-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 09/28/2016] [Indexed: 12/20/2022]
Abstract
Severe influenza is characterized by a cytokine storm, and the influenza virus-cytokine-trypsin cycle is one of the important mechanisms of viral multiplication and multiple organ failure. The aim of this study was to define the key cytokine(s) responsible for trypsin upregulation. Mice were infected with influenza virus strain A/Puerto Rico/8/34 (H1N1) or treated individually or with a combination of interleukin-1β, interleukin-6, and tumor necrosis factor α. The levels of these cytokines and trypsin in the lungs were monitored. The neutralizing effects of anti-IL-1β antibodies on cytokine and trypsin expression in human A549 cells and lung inflammation in the infected mice were examined. Infection induced interleukin-1β, interleukin-6, tumor necrosis factor α, and ectopic trypsin in mouse lungs in a dose- and time-dependent manner. Intraperitoneal administration of interleukin-1β combined with other cytokines tended to upregulate trypsin and cytokine expression in the lungs, but the combination without interleukin-1β did not induce trypsin. In contrast, incubation of A549 cells with interleukin-1β alone induced both cytokines and trypsin, and anti-interleukin-1β antibody treatment abrogated these effects. Administration of the antibody in the infected mice reduced lung inflammation area. These findings suggest that IL-1β plays a key role in trypsin upregulation and has a pathological role in multiple organ failure.
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Affiliation(s)
- I L Indalao
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, 770-8503, Japan
| | - T Sawabuchi
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, 770-8503, Japan
| | - E Takahashi
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, 770-8503, Japan
| | - H Kido
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, 770-8503, Japan.
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Abstract
Symptomatic epidural haematoma after cervical laminoplasty is rare. We report 3 patients who required emergency evacuation of an epidural haematoma. Timely diagnosis and removal of the haematoma is important to prevent neurological deficits. The causative factors in these patients were preoperative coagulopathy, hypertension, and the malfunction of a closed-suction drain.
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Affiliation(s)
- Y Takahashi
- Department of Orthopaedic Surgery, Sendai Orthopaedic Hospital, Sendai, Miyagi, Japan
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Takahashi E, McKusick M, Bjarnason H, Harmsen W, Misra S. In-stent restenosis outcomes in patients treated with stenting for renal artery stenosis. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Kim TY, Yoshimoto T, Aoyama Y, Niimi K, Takahashi E. Analysis of the protective effects of a neuronal Cav2.1 calcium channel in brain injury. Neuroscience 2015; 313:110-21. [PMID: 26616403 DOI: 10.1016/j.neuroscience.2015.11.035] [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: 08/13/2015] [Revised: 10/30/2015] [Accepted: 11/16/2015] [Indexed: 01/13/2023]
Abstract
We previously reported that rolling Nagoya mice carrying a mutation in the α1 subunit of the Cav2.1 channel protective from ischemia- and kainate-induced neuronal damage. However, the protective effect of this mutation and its relationship to brain injury recovery have not been examined. To examine the relationship between Cav2.1 channel function and brain injury, we induced cryogenic brain damage in homozygous rolling Nagoya (rol/rol), control wild-type (+/+), ω-agatoxin IVA-pretreated +/+ (ω-aga +/+), and ω-agatoxin IVA-post-treated +/+ (ω-aga-post-treated +/+) mice. We measured the lesion area, blood brain-barrier permeability and performed immunohistochemistry and western blot analysis. The lesions of rol/rol and ω-aga +/+ mice were significantly smaller than those observed in +/+ mice at both day 1 and day 7 after injury. Similar results were shown in blood-brain barrier permeability. We observed more reactive astrogliosis in +/+ mice than in rol/rol or ω-aga +/+ mice. rol/rol and ω-aga +/+ mice had fewer degenerating cells due to cryogenic injury than did +/+ mice at both day 1 and day 7. ω-Aga-post-treated +/+ mice 24h after injury were sacrificed on day 7. The lesions were smaller in ω-aga-post-treated +/+ mice than those in vehicle-treated +/+ mice. We also examined phosphorylated p38 (pp38) at the injured site. ω-Aga-post-treated +/+ mouse brain slices showed weak pp38 signal; vehicle-treated +/+ mouse brain slices were pp38-positive. These findings demonstrate that the mutant Cav2.1 channel exerts a protective effect against cryogenic brain injury in rolling Nagoya mice. Our results indicate that inhibitors of the Cav2.1-dependent p38 signaling cascade would be useful as therapeutic agents in the treatment of brain injury.
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Affiliation(s)
- T Y Kim
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Yoshimoto
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Aoyama
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Niimi
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - E Takahashi
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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Naganuma A, Kawahake Y, Ogawa Y, Yoshida T, Takahashi E, Inagawa M, Shimizu Y, Tanaka T, Ogawa T, Sato K, Kakizaki S. SUN-PP181: Correlation between Nutritional Assessment with the Indirect Calorimeter and Hospitalization Duration: A Cross-Sectional Study. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30332-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yoshii Y, Kato T, Ono K, Takahashi E, Fujimoto N, Kobayashi S, Kimura F, Nonoyama S, Satoh T. Primary cutaneous follicle center lymphoma in a patient with WHIM syndrome. J Eur Acad Dermatol Venereol 2015; 30:529-30. [DOI: 10.1111/jdv.12927] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Y. Yoshii
- Department of Dermatology; National Defense Medical College; Tokorozawa Japan
| | - T. Kato
- Department of Pediatrics; National Defense Medical College; Tokorozawa Japan
| | - K. Ono
- Department of Dermatology; National Defense Medical College; Tokorozawa Japan
| | - E. Takahashi
- Department of Dermatology; National Defense Medical College; Tokorozawa Japan
| | - N. Fujimoto
- Department of Dermatology; National Defense Medical College; Tokorozawa Japan
| | - S. Kobayashi
- Division of Haematology; Department of Internal Medicine; National Defense Medical College; Tokorozawa Japan
| | - F. Kimura
- Division of Haematology; Department of Internal Medicine; National Defense Medical College; Tokorozawa Japan
| | - S. Nonoyama
- Department of Pediatrics; National Defense Medical College; Tokorozawa Japan
| | - T. Satoh
- Department of Dermatology; National Defense Medical College; Tokorozawa Japan
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Hiyoshi M, Indalao IL, Yano M, Yamane K, Takahashi E, Kido H. Influenza A virus infection of vascular endothelial cells induces GSK-3β-mediated β-catenin degradation in adherens junctions, with a resultant increase in membrane permeability. Arch Virol 2014; 160:225-34. [PMID: 25385175 PMCID: PMC4284391 DOI: 10.1007/s00705-014-2270-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 10/25/2014] [Indexed: 11/28/2022]
Abstract
Multiorgan failure with vascular hyperpermeability is the final outcome in the progression of seasonal influenza virus pneumonia and influenza-associated encephalopathy, and it is also common in infection with highly pathogenic avian influenza virus. However, the precise molecular mechanism by which influenza virus infection causes vascular endothelial cell hyperpermeability remains poorly defined. We investigated the mechanisms of hyperpermeability of human umbilical vein endothelial cells infected with influenza A virus (IAV)/Puerto Rico/8/34 (PR8) (H1N1). The levels of β-catenin, a key regulatory component of the vascular endothelial-cadherin cell adhesion complex, were markedly decreased during infection for 28 h, with increments of vascular hyperpermeability measured by transendothelial electrical resistance. Lactacystin (at 2 μM), a proteasome inhibitor, inhibited the decrease in β-catenin levels. Since the N-terminal phosphorylation of β-catenin by glycogen synthase kinase (GSK)-3β is the initiation step of proteasome-dependent degradation, we examined the effects of GSK-3β suppression by RNA interference in endothelial cells. IAV-infection-induced β-catenin degradation was significantly inhibited in GSK-3β-knockdown cells, and transfection of cells with recombinant β-catenin significantly suppressed IAV-induced hyperpermeability. These findings suggest that IAV infection induces GSK-3β-mediated β-catenin degradation in the adherens junctional complexes and induces vascular hyperpermeability. The in vitro findings of β-catenin degradation and activation of GSK-3β after IAV infection were confirmed in lungs of mice infected with IAV PR8 during the course of infection from day 0 to day 6. These results suggest that GSK-3β-mediated β-catenin degradation in adherens junctions is one of the key mechanisms of vascular hyperpermeability in severe influenza.
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Affiliation(s)
- M Hiyoshi
- Division of Enzyme Chemistry, Institute for Enzyme Research, The University of Tokushima, Kuramoto-cho 3-18-15, Tokushima, 770-8503, Japan
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Thomson NC, Chaudhuri R, Spears M, Messow CM, Jelinsky S, Miele G, Nocka K, Takahashi E, Hilmi OJ, Shepherd MC, Miller DK, McSharry C. Arachidonic acid metabolites and enzyme transcripts in asthma are altered by cigarette smoking. Allergy 2014; 69:527-36. [PMID: 24571371 DOI: 10.1111/all.12376] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/16/2014] [Indexed: 01/18/2023]
Abstract
BACKGROUND Arachidonic acid metabolites are implicated in the pathogenesis of asthma although only limited information is available on the impact of current smoking history on these metabolites. The aim of the study was to examine the effect of smoking status on urinary, sputum, and plasma eicosanoid concentrations and relevant enzyme transcripts in asthma. METHODS In 108 smokers and never smokers with asthma and 45 healthy controls [smokers and never smokers], we measured urinary tetranor prostaglandin (PG)D2 (PGDM) and leukotriene (LT)E4 , induced sputum fluid LTB4 , LTE4 , PGD2 , and PGE2 , plasma secretory phospholipase A2 (sPLA2 ), and 11β prostaglandin F2α (11βPGF2α ), and, in a subgroup with severe asthma, airway leukocyte and epithelial cell mRNA expression levels of arachidonic acid metabolic enzymes. RESULTS Smokers with asthma had higher urinary LTE4 ; 83 (59, 130) vs 59 (40, 90) pg/mg creatinine, P = 0.008, and PGDM; 60 (35, 100) vs 41 (28, 59) ng/mg creatinine, P = 0.012 concentrations, respectively, and lower sputum PGE2 concentrations 80 (46, 157) vs 192 (91, 301) pg/ml, P = 0.001 than never smokers with asthma. Sputum LTB4 (P = 0.013), and plasma 11βPGF2α (P = 0.032), concentrations, respectively, were increased in smokers with asthma compared with healthy smokers. Asthma-specific and smoking-related increases (>1.5-fold expression) in arachidonate 15-lipoxygenase and gamma-glutamyltransferase transcripts were demonstrated. CONCLUSIONS Several arachidonic acid metabolites and enzyme transcripts involving both lipoxygenase and cyclooxygenase pathways are increased in smokers with asthma and differ from never smokers with asthma. Possibly targeting specific lipoxygenase and cyclooxygenase pathways that are activated by asthma and cigarette smoking may optimize therapeutic responses.
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Affiliation(s)
- N. C. Thomson
- Institute of Infection, Immunity & Inflammation; University of Glasgow; Glasgow UK
| | - R. Chaudhuri
- Institute of Infection, Immunity & Inflammation; University of Glasgow; Glasgow UK
| | - M. Spears
- Institute of Infection, Immunity & Inflammation; University of Glasgow; Glasgow UK
| | - C. M. Messow
- Robertson Centre for Biostatistics; University of Glasgow; Glasgow UK
| | - S. Jelinsky
- Pfizer Research/Translational Medicine Research Collaboration; Dundee and Sandwich UK
- Pfizer Research/Translational Medicine Research Collaboration; Cambridge MA USA
- Pfizer Research/Translational Medicine Research Collaboration; Collegeville PA USA
| | - G. Miele
- Pfizer Research/Translational Medicine Research Collaboration; Dundee and Sandwich UK
- Pfizer Research/Translational Medicine Research Collaboration; Cambridge MA USA
- Pfizer Research/Translational Medicine Research Collaboration; Collegeville PA USA
| | - K. Nocka
- Pfizer Research/Translational Medicine Research Collaboration; Dundee and Sandwich UK
- Pfizer Research/Translational Medicine Research Collaboration; Cambridge MA USA
- Pfizer Research/Translational Medicine Research Collaboration; Collegeville PA USA
| | | | - O. J. Hilmi
- Ear, Nose & Throat Department; NHS Greater Glasgow and Clyde; Glasgow UK
| | - M. C. Shepherd
- Institute of Infection, Immunity & Inflammation; University of Glasgow; Glasgow UK
| | - D. K. Miller
- Pfizer Research/Translational Medicine Research Collaboration; Dundee and Sandwich UK
- Pfizer Research/Translational Medicine Research Collaboration; Cambridge MA USA
- Pfizer Research/Translational Medicine Research Collaboration; Collegeville PA USA
| | - C. McSharry
- Institute of Infection, Immunity & Inflammation; University of Glasgow; Glasgow UK
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Lam ECF, Murariu D, Takahashi E, Park CW, Bueno RS, Lorenzo CSF. Prescription drug cost reduction in Native Hawaiians after laparoscopic Roux-en-y gastric bypass. Hawaii J Med Public Health 2013; 72:40-43. [PMID: 23467573 PMCID: PMC3585497] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE Native Hawaiians (NH) represent a unique population where socioeconomic factors have contributed to higher incidence rates of obesity and related comorbidities than in the general population resulting in substantial prescription medication costs. Studies demonstrate that laparoscopic Roux-en-y gastric bypass (LRYGB) surgery results in significant weight loss, improvement of comorbidities, and decreased costs for prescription medications in Caucasians. This study aimed to analyze the effects of LRYGB surgery on Native Hawaiians and their prescription drug costs. METHODS Demographics, baseline body mass index (BMI), comorbidities, preoperative, and postoperative data were analyzed for NH patients who underwent LRYGB between January 2004 and April 2009. Medication costs were determined using the online pharmacy <http://www.drugstore.com>. Generic drugs were selected when appropriate, while vitamins and nutritional supplements were not included in this study. RESULTS Fifty (14 Men, 36 women) NH patients had sufficient data and follow-up for analysis. Average preoperative BMI was 49 kg/m(2), while at one year follow-up it decreased to 33 kg/m(2) (P<.001). This correlates to an average of 61% excess body weight lost (P<.001). The average number of prescription medications decreased from 3.5/patient preoperatively to 1.1/patient at one year (P<.001), equating to a monthly cost savings of US $195.8/patient (P<.001). CONCLUSIONS LRYGB provided substantial weight loss for morbidly obese NH patients, resulting in significantly less prescription medication use and substantial cost savings. Thus, bariatric surgery for weight management has the potential to improve the overall well-being and lower the financial burden of medical care in socioeconomically disadvantaged communities such as the NH.
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Affiliation(s)
- Edward C F Lam
- ARTEMIS (Association of Research, Training and Education in Minimally Invasive Surgery) Research Group, Department of Surgery, University of Hawai'i John A. Burns School of Medicine, Honolulu, HI 96813, USA
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Sugimori H, Yoshida K, Miyakawa M, Izuno T, Kishimoto T, Takahashi E, Yamagami T, Kagamimori S. Influence of Behavioral and Environmental Factors on the Development of Obesity in Three-year-old Children -A Case-Control Study Based on Toyama Study-. Environ Health Prev Med 2012; 2:74-8. [PMID: 21432456 DOI: 10.1007/bf02931968] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/1996] [Accepted: 03/19/1997] [Indexed: 11/27/2022] Open
Abstract
Obesity in children seems to be a risk factor for chronic diseases in adulthood. From the viewpoint of preventive medicine, factors influencing the development of obese children should be removed early in life.The purpose of this study was to the elucidate relationship between obesity in 3-year-old children and both behavioral and environmental factors by conducting a case-control study. Subjects were selected from the Toyama study. Matched-pair comparisons were performed between obese children whose Kaup's index was 18 or more (N=117) and control children (N=234) . Multivariate stepwised logistic regression analysis also applied to assess influence of confounding factors.The results indicated that the following 6 factors significantly influenced the development of obese 3-year-old children in exact Fisher's method analysis (p<0.05): person other than the mother responsible for taking care of the child, short sleep duration (9 hours or less), physical inactivity, eating snacks irregularly, overweight father (BMI≥24), and overweight mother (BMI≥24). For both sexes, after adjusting for confounders by multivariate stepwise logistic analysis, overweight mother (OR 2.54, 95 % CI 1.64-3.95), birth overweight (birth weight≥3,500g; OR 1.76, 95 % CI 1.15-2.69), the mother not responsible for taking care of the child (OR 1.65, 95% CI 1.10-2.48), overweight father (OR 1.62, 95%CI 1.09-2.40), eating snacks irregularly (OR 1.56, 95% CI 1.04-2.33), and gender (female;OR 0.51, 95% CI 0.34-0.77) had significant relationships with obesity in childhood. For boys, overweight mother (OR 2.53, 95 % CI 1.47-4.35), birth overweight (OR 2.03, 95%CI 1.22-3.39), eating snacks irregularly (OR 1.94, 95 %CI 1.19-3.18), and birth month (36-41 months; OR 0.47, 95 % CI 0.23-0.96) had significant relationships. For girls, overweight mother (OR 2.62, 1.28-5.35), and short sleep duration (OR 2.24, 1.11-4.52) had significant relationships. In neither Fisher's exact method nor multivariate logistic models, time to wake up, bedtime, duration of playing outdoors, regularity of meals, care about salty food, or frequency of eating snacks had significant relations with obesity in 3-year-old children (p<0.05).
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Affiliation(s)
- H Sugimori
- Depart. of Hygiene & Preventive Medicine, Showa University, School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, 142, Tokyo, Japan
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Edlow B, Takahashi E, Cummings P, Klein J, Haynes R, Wu O, Greer D, Greenberg S, Kinney H, Folkerth R. Advanced MRI Neural Network Analysis for Determining the Neuroanatomic Basis of Traumatic Coma (S47.007). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s47.007] [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: 11/15/2022] Open
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Baumer F, Pienaar R, Sahin M, Grant E, Takahashi E. Longitudinal Changes in Diffusion Tractography Values in Tuberous Sclerosis (P03.133). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p03.133] [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: 11/15/2022] Open
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Edlow B, Takahashi E, Cummings P, Klein J, Haynes R, Wu O, Greer D, Greenberg S, Kinney H, Folkerth R. Advanced MRI Neural Network Analysis for Determining the Neuroanatomic Basis of Traumatic Coma (IN3-1.004). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.in3-1.004] [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: 11/15/2022] Open
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Rosen GD, Azoulay NG, Griffin EG, Newbury A, Koganti L, Fujisaki N, Takahashi E, Grant PE, Truong DT, Fitch RH, Lu L, Williams RW. Bilateral subcortical heterotopia with partial callosal agenesis in a mouse mutant. ACTA ACUST UNITED AC 2012; 23:859-72. [PMID: 22455839 DOI: 10.1093/cercor/bhs080] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Cognition and behavior depend on the precise placement and interconnection of complex ensembles of neurons in cerebral cortex. Mutations that disrupt migration of immature neurons from the ventricular zone to the cortical plate have provided major insight into mechanisms of brain development and disease. We have discovered a new and highly penetrant spontaneous mutation that leads to large nodular bilateral subcortical heterotopias with partial callosal agenesis. The mutant phenotype was first detected in a colony of fully inbred BXD29 mice already known to harbor a mutation in Tlr4. Neurons confined to the heterotopias are mainly born in midgestation to late gestation and would normally have migrated into layers 2-4 of overlying neocortex. Callosal cross-sectional area and fiber number are reduced up to 50% compared with coisogenic wildtype BXD29 substrain controls. Mutants have a pronounced and highly selective defect in rapid auditory processing. The segregation pattern of the mutant phenotype is most consistent with a two-locus autosomal recessive model, and selective genotyping definitively rules out the Tlr4 mutation as a cause. The discovery of a novel mutation with strong pleiotropic anatomical and behavioral effects provides an important new resource for dissecting molecular mechanisms and functional consequences of errors of neuronal migration.
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Affiliation(s)
- G D Rosen
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA.
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Kawakami Y, Saito T, Fujimoto T, Goto-Kazeto R, Takahashi E, Adachi S, Arai K, Yamaha E. Technical note: Viability and motility of vitrified/thawed primordial germ cell isolated from common carp (Cyprinus carpio) somite embryos1. J Anim Sci 2012; 90:495-500. [DOI: 10.2527/jas.2011-4329] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y. Kawakami
- Nanae Fresh Water Laboratory, Field Science Center of Northern Biosphere, Hokkaido University, Nanae, Hokkaido 041-1105, Japan
| | - T. Saito
- Nanae Fresh Water Laboratory, Field Science Center of Northern Biosphere, Hokkaido University, Nanae, Hokkaido 041-1105, Japan
| | - T. Fujimoto
- Nanae Fresh Water Laboratory, Field Science Center of Northern Biosphere, Hokkaido University, Nanae, Hokkaido 041-1105, Japan
| | - R. Goto-Kazeto
- Nanae Fresh Water Laboratory, Field Science Center of Northern Biosphere, Hokkaido University, Nanae, Hokkaido 041-1105, Japan
| | - E. Takahashi
- Nanae Fresh Water Laboratory, Field Science Center of Northern Biosphere, Hokkaido University, Nanae, Hokkaido 041-1105, Japan
| | - S. Adachi
- Faculty and Graduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan
| | - K. Arai
- Faculty and Graduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan
| | - E. Yamaha
- Nanae Fresh Water Laboratory, Field Science Center of Northern Biosphere, Hokkaido University, Nanae, Hokkaido 041-1105, Japan
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Yorozuya K, Takahashi E, Kousaka J, Mouri Y, Yoshida M, Fujii K, Akizuki M, Nakano S, Fukutomi T, Umemoto Y, Yokoi T, Imai H. A Case of Estrogen Receptor Positive Secretory Carcinoma in a 9-Year-old Girl With ETV6-NTRK3 Fusion Gene. Jpn J Clin Oncol 2011; 42:208-11. [DOI: 10.1093/jjco/hyr187] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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42
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Takemoto S, Katagi H, Takahashi E, Naito K, Inui M, Okuyama G. The Production of Pelargonium graveolens Oil by Shoot and Plant Tissue Culture. Journal of Essential Oil Research 2011. [DOI: 10.1080/10412905.1989.9697764] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- S. Takemoto
- a Kanebo Ltd., Biochemistry Laboratory and Cosmetic Laboratory , 5-3-28 Kotobuki-cho, Odawara City, Kanagawa, 250, Japan
| | - H. Katagi
- a Kanebo Ltd., Biochemistry Laboratory and Cosmetic Laboratory , 5-3-28 Kotobuki-cho, Odawara City, Kanagawa, 250, Japan
| | - E. Takahashi
- a Kanebo Ltd., Biochemistry Laboratory and Cosmetic Laboratory , 5-3-28 Kotobuki-cho, Odawara City, Kanagawa, 250, Japan
| | - K. Naito
- a Kanebo Ltd., Biochemistry Laboratory and Cosmetic Laboratory , 5-3-28 Kotobuki-cho, Odawara City, Kanagawa, 250, Japan
| | - M. Inui
- a Kanebo Ltd., Biochemistry Laboratory and Cosmetic Laboratory , 5-3-28 Kotobuki-cho, Odawara City, Kanagawa, 250, Japan
| | - G. Okuyama
- a Kanebo Ltd., Biochemistry Laboratory and Cosmetic Laboratory , 5-3-28 Kotobuki-cho, Odawara City, Kanagawa, 250, Japan
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Kang DW, Liu C, Chang LH, Takahashi E, Watanabe T, Sasaki Y. White matter connectivity changes between visual and higher-level cortical regions in association with perceptual learning revealed by diffusion tensor tractography. J Vis 2011. [DOI: 10.1167/11.11.990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Gando Y, Kawano H, Yamamoto K, Sanada K, Tanimoto M, Oh T, Ohmori Y, Miyatani M, Usui C, Takahashi E, Tabata I, Higuchi M, Miyachi M. Age and cardiorespiratory fitness are associated with arterial stiffening and left ventricular remodelling. J Hum Hypertens 2009; 24:197-206. [DOI: 10.1038/jhh.2009.57] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Hirayama K, Itoh K, Takahashi E, Mitsuoka T. Comparison of Composition of Faecal Microbiota and Metabolism of Faecal Bacteria among 'Human-Flora-Associated' Mice Inoculated with Faeces from Six Different Human Donors. Microbial Ecology in Health and Disease 2009. [DOI: 10.3109/08910609509140098] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- K. Hirayama
- Department of Veterinary Public Health, Faculty of Agriculture, The University of Tokyo, Bunkyo-ku, Tokyo, Japan, 113
| | - K. Itoh
- Department of Veterinary Public Health, Faculty of Agriculture, The University of Tokyo, Bunkyo-ku, Tokyo, Japan, 113
| | - E. Takahashi
- Department of Veterinary Public Health, Faculty of Agriculture, The University of Tokyo, Bunkyo-ku, Tokyo, Japan, 113
| | - T. Mitsuoka
- Department of Veterinary Public Health, Faculty of Agriculture, The University of Tokyo, Bunkyo-ku, Tokyo, Japan, 113
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Hirayama K, Itoh K, Takahashi E, Shinozaki K, Sawasaki T. Composition of Faecal Microbiota and Metabolism of Faecal Bacteria of Pig-Flora-Associated (PFA) mice. Microbial Ecology in Health and Disease 2009. [DOI: 10.3109/08910609609166460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- K. Hirayama
- Department of Veterinary Public Health, The University of Tokyo, Bunkyo-ku, Tokyo, 113, Japan
| | - K. Itoh
- Department of Veterinary Public Health, The University of Tokyo, Bunkyo-ku, Tokyo, 113, Japan
| | - E. Takahashi
- Department of Veterinary Public Health, The University of Tokyo, Bunkyo-ku, Tokyo, 113, Japan
| | - K. Shinozaki
- Experimental Station for Bio-animal Science, Faculty of Agriculture, The University of Tokyo, Bunkyo-ku, Tokyo, 113, Japan
| | - T. Sawasaki
- Experimental Station for Bio-animal Science, Faculty of Agriculture, The University of Tokyo, Bunkyo-ku, Tokyo, 113, Japan
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Fukumoto N, Obama Y, Kitamura N, Niimi K, Takahashi E, Itakura C, Shibuya I. Hypoalgesic behaviors of P/Q-type voltage-gated Ca2+ channel mutant mouse, rolling mouse Nagoya. Neuroscience 2009; 160:165-73. [PMID: 19248821 DOI: 10.1016/j.neuroscience.2009.02.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2008] [Revised: 02/13/2009] [Accepted: 02/15/2009] [Indexed: 10/21/2022]
Abstract
Rolling mouse Nagoya (tg(rol)) is a spontaneously occurring P/Q-type voltage-gated Ca2+ channel (VGCC) mutant mouse. A P/Q-type VGCC with the tg(rol) mutation has lower voltage sensitivity of activation, and mice with a homozygous genotype (tg(rol)/tg(rol)) but not with a heterozygous genotype (tg(rol)/+) show impaired motor coordination of the hind limbs. To investigate the roles of P/Q-type VGCC in pain sensing mechanisms, behavioral responses of adult tg(rol) mice to thermal, mechanical and chemical nociceptive stimuli were examined by the plantar, tail-flick, von Frey and formalin tests. The latency of the withdrawal response to thermal stimuli in the plantar or tail-flick tests was significantly longer in tg(rol)/tg(rol) mice than in tg(rol)/+ and wild-type (+/+) mice, and in tg(rol)/+ mice than in +/+ mice. The withdrawal response to mechanical stimuli in the von Frey test was lower in tg(rol)/tg(rol) mice than in +/+ mice. Although the licking time during the first 5 min after the formalin injection was similar among all of the three genotypes, that during 5-60 min was significantly shorter in tg(rol)/tg(rol) mice than in tg(rol)/+ and +/+ mice, and in tg(rol)/+ mice than in +/+ mice. Artificial inflammation induced by injection of complete Freund's adjuvant (CFA) into a hind paw significantly enhanced the withdrawal response recorded in the plantar and von Frey tests regardless of the mouse genotype. The CFA-enhanced response in the tg(rol)/tg(rol) mice was similar to the response in +/+ mice without the CFA injection. These results suggest that tg(rol) mutant mice show hypoalgesic responses caused by a lower sensitivity to nociceptive thermal, mechanical and chemical stimuli. It is concluded that the P/Q-type VGCC has a pro-nociceptive role and that the tg(rol) mutant mouse may be a useful tool to investigate the role of the P/Q-type VGCC in pain sensing mechanisms.
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Affiliation(s)
- N Fukumoto
- Department of Veterinary Physiology, Faculty of Agriculture, Tottori University, 101, South 4th, Koyama, Tottori 6808553, Japan
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Takahashi E, Takaya H, Naota T. Development of vapochromic organic crystals for monitoring systems of sick-house syndrome gases. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308079142] [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: 11/10/2022] Open
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Takahashi E, Asano N, Li C, Tanaka T, Shimada K, Shimada S, Yoshino T, Kojima M, Hara K, Eimoto T, Nakamura S. Nodal T/NK-cell lymphoma of nasal type: a clinicopathological study of six cases. Histopathology 2008; 52:585-96. [DOI: 10.1111/j.1365-2559.2008.02997.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Usui C, Takahashi E, Gando Y, Sanada K, Oka J, Miyachi M, Tabata I, Higuchi M. Resting energy expenditure can be assessed by dual-energy X-ray absorptiometry in women regardless of age and fitness. Eur J Clin Nutr 2008; 63:529-35. [DOI: 10.1038/sj.ejcn.1602980] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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