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Mutoh T, Aono H, Seto W, Kimoto T, Tochinai R, Moroi J, Ishikawa T. Factors Influencing Discontinuation of Clazosentan Therapy in Elderly Patients with Aneurysmal Subarachnoid Hemorrhage: A Retrospective Study from a Japanese Single Center. Med Sci Monit 2024; 30:e943303. [PMID: 38361355 PMCID: PMC10877966 DOI: 10.12659/msm.943303] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 12/28/2023] [Indexed: 02/17/2024] Open
Abstract
BACKGROUND Clazosentan is an endothelin receptor antagonist approved in Japan for preventing cerebral vasospasm and vasospasm-associated cerebral ischemia and infarction. This study included elderly patients aged ≥75 years with aneurysmal subarachnoid hemorrhage (SAH) and aimed to evaluate the factors associated with discontinuing anti-vasospasm therapy with clazosentan. MATERIAL AND METHODS In this single-center retrospective observational study, we extracted diagnostic and therapeutic work-up data of consecutive 40 patients with SAH treated with clazosentan infusion (10 mg/h) as first-line anti-vasospasm therapy between May 2022 and August 2023. Patient data were compared between the discontinued and completed groups, and related factors for the discontinuation were further analyzed. RESULTS Clazosentan was discontinued in 22% (n=9) of patients due to intolerable dyspnea accompanied by hypoxemia at 5±3 days after therapy initiation, in which 44% (n=4) were elderly (≥75 years). Patients who discontinued clazosentan therapy showed significantly lower urine volumes compared with those who completed the therapy (P<0.05). Multivariate regression analysis revealed that day-to-day urine volume variance and older age were independent risk factors for drug cessation (P<0.05). The cut-off value for predicting clazosentan discontinuation was -0.7 mL/kg/h with sensitivity of 86% and specificity of 75% (area under the curve: 0.76±0.10; 95% confidence interval: 0.56-0.96; P=0.035). CONCLUSIONS Our results suggest that approximately 20% of SAH patients suffered from intolerable respiratory symptoms attributable to hypoxemia. We found that both reduced day-to-day urine volume variation and older age are independent risk factors for drug discontinuation.
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Affiliation(s)
- Tatsushi Mutoh
- Department of Surgical Neurology, Research Institute for Brain and Blood Vessels, Akita Cerebrospinal and Cardiovascular Center, Akita, Japan
| | - Hiroaki Aono
- Department of Surgical Neurology, Research Institute for Brain and Blood Vessels, Akita Cerebrospinal and Cardiovascular Center, Akita, Japan
| | - Wataru Seto
- Department of Pharmaceutics, Akita Cerebrospinal and Cardiovascular Center, Akita, Japan
| | - Takehiro Kimoto
- Department of Pharmaceutics, Akita Cerebrospinal and Cardiovascular Center, Akita, Japan
| | - Ryota Tochinai
- Department of Veterinary Pathophysiology and Animal Health, Graduate School of Agriculture and Life Sciences, the University of Tokyo, Tokyo, Japan
| | - Junta Moroi
- Department of Surgical Neurology, Research Institute for Brain and Blood Vessels, Akita Cerebrospinal and Cardiovascular Center, Akita, Japan
| | - Tatsuya Ishikawa
- Department of Surgical Neurology, Research Institute for Brain and Blood Vessels, Akita Cerebrospinal and Cardiovascular Center, Akita, Japan
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Mutoh T, Tochinai R, Aono H, Kuwahara M, Taki Y, Ishikawa T. Simple procedure for assessing diffuse subarachnoid hemorrhage successfully created using filament perforation method in mice. Animal Model Exp Med 2024; 7:77-81. [PMID: 38111348 PMCID: PMC10961900 DOI: 10.1002/ame2.12372] [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: 10/02/2023] [Accepted: 12/04/2023] [Indexed: 12/20/2023] Open
Abstract
The murine model of subarachnoid hemorrhage (SAH) is a valuable experimental tool for investigating molecular and cellular mechanisms, and the endovascular filament perforation technique can be used to simulate prominent pathophysiological features observed after human SAH; however, current validation methods for assessing an appropriate SAH model are limited. Here, we introduce a simple procedure for selecting a mouse model of diffuse SAH. SAH was induced in 24 mice using a standard filament perforation method. After confirming survival at 24 h, SAH was scored 0-1 based on T2*-weighted images on whole-brain magnetic resonance imaging (MRI) and visual surveillance of the cisterna magna (CM) through the dura mater. The CM-based SAH grading correlated well with a reference parameter defined by extracted brain (r2 = 0.53, p < 0.0001). The receiver operating characteristic curve revealed a sensitivity of 85% and a specificity of 91% for detecting diffuse SAH, with a similar area under the curve (0.89 ± 0.06 [standard error of the mean]) as the MRI-based grading (0.72 ± 0.10, p = 0.12). Our data suggest that confirming an SAH clot in the CM is a valuable way to select a clinically relevant diffuse SAH model that can be used in future experimental studies.
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Affiliation(s)
- Tatsushi Mutoh
- Department of Surgical Neurology, Research Institute for Brain and Blood VesselsAkita Cerebrospinal and Cardiovascular CenterAkitaJapan
- Department of Aging Research and Geriatric Medicine, Institute of Development, Aging and CancerTohoku UniversitySendaiJapan
| | - Ryota Tochinai
- Department of Surgical Neurology, Research Institute for Brain and Blood VesselsAkita Cerebrospinal and Cardiovascular CenterAkitaJapan
- Department of Aging Research and Geriatric Medicine, Institute of Development, Aging and CancerTohoku UniversitySendaiJapan
- Department of Veterinary Pathophysiology and Animal Health, Graduate School of Agriculture and Life SciencesThe University of TokyoTokyoJapan
| | - Hiroaki Aono
- Department of Surgical Neurology, Research Institute for Brain and Blood VesselsAkita Cerebrospinal and Cardiovascular CenterAkitaJapan
| | - Masayoshi Kuwahara
- Department of Veterinary Pathophysiology and Animal Health, Graduate School of Agriculture and Life SciencesThe University of TokyoTokyoJapan
| | - Yasuyuki Taki
- Department of Aging Research and Geriatric Medicine, Institute of Development, Aging and CancerTohoku UniversitySendaiJapan
| | - Tatsuya Ishikawa
- Department of Surgical Neurology, Research Institute for Brain and Blood VesselsAkita Cerebrospinal and Cardiovascular CenterAkitaJapan
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Mutoh T, Aono H, Seto W, Kimoto T, Tochinai R, Moroi J, Ishikawa T. Cardiopulmonary Events of the Elderly (≥75 Years) during Clazosentan Therapy after Subarachnoid Hemorrhage: A Retrospective Study from a Tertiary Stroke Center in Japan. Medicina (Kaunas) 2024; 60:185. [PMID: 38276064 PMCID: PMC10819954 DOI: 10.3390/medicina60010185] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/09/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
Clazosentan has been shown to prevent vasospasm and reduce mortality in patients after aneurysmal subarachnoid hemorrhage (SAH) and has been approved for clinical use in Japan; however, its systemic events in the elderly (aged ≥ 75 years) have not been well-documented. Here, we report serious/intolerable cardiopulmonary complications requiring discontinuation of drug therapy in elderly SAH patients. In this single-center case series study, medical records of consecutive SAH patients treated postoperatively with clazosentan (10 mg/h) between June 2022 and May 2023 were reviewed retrospectively. Thirty-three patients received clazosentan therapy, of whom six were elderly with a mean age of 80.3 ± 5.2 (range 75-89) years. Among them, despite no obvious medical history of systemic abnormalities, clazosentan was discontinued in three (50%) patients due to pleural effusion and hypoxemia with or without hypotension at 5 ± 3 days after therapy initiation, which was higher than the incidence for younger patients (15%). The elderly patients had significantly lower urine output (1935 ± 265 vs. 1123 ± 371 mL/day, p = 0.03) and greater weight gain (2.1 ± 1.1 vs. 4.2 ± 1.9 kg from baseline, p = 0.04) than patients who completed the therapy. One 89-year-old female developed congestive heart failure and hydrostatic pulmonary edema associated with increased intravascular and lung volumes even after therapy was discontinued, while the remaining two cases recovered within 2 days after drug cessation. These results suggest that elderly patients are more vulnerable to fluid retention and have a higher risk of cardiopulmonary complications during clazosentan therapy than younger patients. Careful monitoring of urine volume and weight gain and caution regarding age- and therapy-related hemodynamic insufficiencies are required.
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Affiliation(s)
- Tatsushi Mutoh
- Department of Surgical Neurology, Research Institute for Brain and Blood Vessels, Akita Cerebrospinal and Cardiovascular Center, Akita 010-0874, Japan
- Department of Aging Research and Geriatric Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Hiroaki Aono
- Department of Surgical Neurology, Research Institute for Brain and Blood Vessels, Akita Cerebrospinal and Cardiovascular Center, Akita 010-0874, Japan
| | - Wataru Seto
- Department of Pharmaceutics, Akita Cerebrospinal and Cardiovascular Center, Akita 010-0874, Japan
| | - Takehiro Kimoto
- Department of Pharmaceutics, Akita Cerebrospinal and Cardiovascular Center, Akita 010-0874, Japan
| | - Ryota Tochinai
- Department of Surgical Neurology, Research Institute for Brain and Blood Vessels, Akita Cerebrospinal and Cardiovascular Center, Akita 010-0874, Japan
- Department of Aging Research and Geriatric Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
- Department of Veterinary Pathophysiology and Animal Health, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8654, Japan
| | - Junta Moroi
- Department of Surgical Neurology, Research Institute for Brain and Blood Vessels, Akita Cerebrospinal and Cardiovascular Center, Akita 010-0874, Japan
| | - Tatsuya Ishikawa
- Department of Surgical Neurology, Research Institute for Brain and Blood Vessels, Akita Cerebrospinal and Cardiovascular Center, Akita 010-0874, Japan
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Teshima K, Kume M, Kondo R, Shibata K, Abe K, Aono H, Fushimi S, Takahashi S, Takahashi S, Saito M, Takahashi N. Methotrexate-induced Transient Encephalopathy in an Adolescent and Young Adult Patient with Acute Lymphoblastic Leukemia. Intern Med 2021; 60:2115-2118. [PMID: 33518561 PMCID: PMC8313907 DOI: 10.2169/internalmedicine.5937-20] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A 17-year-old girl was diagnosed with acute lymphoblastic leukemia (ALL). After the administration of high-dose methotrexate (MTX) or intrathecal MTX, the patient experienced transient hemiparesis and motor aphasia. Diffusion-weighted magnetic resonance imaging showed a high-intensity lesion in the bilateral centrum semiovale, and a vasospasm was detected in the proximal segment of bilateral A1 on magnetic resonance angiography. Edaravone was administered, and leucovorin rescue treatment was continued; eventually, the patient's neurological symptoms completely resolved. This finding suggested that vasospasm might be a mechanism underlying MTX-induced transient encephalopathy in adolescent and young adult patients with ALL.
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Affiliation(s)
- Kazuaki Teshima
- Department of Hematology, Hiraka General Hospital, Japan
- Department of Hematology, Nephrology and Rheumatology, Akita University Graduate School of Medicine, Japan
| | - Masaaki Kume
- Department of Hematology, Hiraka General Hospital, Japan
| | - Rui Kondo
- Department of Neurosurgery, Hiraka General Hospital, Japan
| | | | - Ko Abe
- Department of Hematology, Hiraka General Hospital, Japan
- Department of Hematology, Nephrology and Rheumatology, Akita University Graduate School of Medicine, Japan
| | - Hiroaki Aono
- Department of Neurosurgery, Hiraka General Hospital, Japan
| | - Susumu Fushimi
- Department of Neurosurgery, Hiraka General Hospital, Japan
| | | | | | - Masahiro Saito
- Department of Diagnostic Pathology, Hiraka General Hospital, Japan
| | - Naoto Takahashi
- Department of Hematology, Nephrology and Rheumatology, Akita University Graduate School of Medicine, Japan
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5
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Otani S, Yamada K, Miyamoto S, Azuma K, Ishii H, Bessho A, Hosokawa S, Kunitoh H, Miyazaki K, Tanaka H, Miura S, Aono H, Nakahara Y, Kusaka K, Hosomi Y, Hamada A, Okamoto H. MA21.11 A Multicenter Phase II Study of Low-Dose Erlotinib in Frail Patients with EGFR Mutation-Positive, Non-Small Cell Lung Cancer: TORG1425. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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6
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Miyamoto S, Tokkito T, Bessho A, Fukamatsu N, Kunitoh H, Ishii M, Tanaka H, Aono H, Fukui T, Kusaka K, Hosomi Y, Hamada A, Yamada K, Okamoto H. ABCB1 genetic polymorphism and pharmacokinetic analysis of low dose erlotinib in frail patients with EGFR mutation (mt)-positive, non-small cell lung cancer: TORG1425. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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7
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Usui K, Yokoyama T, Kisohara A, Mori Y, Takeda Y, Ishida H, Kusano N, Kishi K, Katsushima U, Kuwako T, Aono H, Shikama Y, Minato K, Matsushima H, Uemura K, Ohashi Y, Kunitoh H. The plasma ctDNA monitoring during epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) treatment in patients with EGFR mutant non-small cell lung cancer (JP-CLEAR trial). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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8
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Kubota K, Miyanaga A, Hosomi Y, Okuma Y, Minato K, Fujimoto S, Takiguchi Y, Okamoto H, Hattori Y, Isobe H, Aono H. Phase II trial of S-1 plus cisplatin combined with bevacizumab for advanced non-squamous non-small cell lung cancer (TCOG LC-1202). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw391.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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9
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Isaka M, Befu M, Matsubara N, Ishikawa M, Aono H, Namba S. Type 1 Achilles tendon rupture caused by grooming trauma in a young dog. Open Vet J 2014; 4:56-8. [PMID: 26623339 PMCID: PMC4629596] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 04/18/2014] [Indexed: 11/20/2022] Open
Abstract
Achilles tendon rupture is uncommon in small animal practice. A 9-month-old, female, mixed breed dog (weighing 2.2kg) was referred to our hospital with a primary complaint of right hind limb lameness. Complete right Achilles tendon rupture was diagnosed by physical examination and radiography. The tendon was surgically repaired the next day by using a three-loop and single near-far-far-near suture methods. Complete healing was achieved by 97 days post-surgery. This report describes the surgical technique used for complete Achilles tendon rupture repair in a young dog.
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Affiliation(s)
- M. Isaka
- Marble Veterinary Medical Center, 4-1-6 Ishikawa, Fujisawa, Kanagawa, Japan 252-0815,Corresponding Author: Dr. Mitsuhiro Isaka. Marble Veterinary Medical Center, 4-1-6 Ishikawa, Fujisawa, Kanagawa, Japan. Tel.: +81 466 86 2080, +81 466 86 0558.
| | - M. Befu
- Marble Veterinary Medical Center, 4-1-6 Ishikawa, Fujisawa, Kanagawa, Japan 252-0815
| | - N. Matsubara
- Marble Veterinary Medical Center, 4-1-6 Ishikawa, Fujisawa, Kanagawa, Japan 252-0815
| | - M. Ishikawa
- Marble Veterinary Medical Center, 4-1-6 Ishikawa, Fujisawa, Kanagawa, Japan 252-0815
| | - H. Aono
- Aono Pet Clinic, 31-2 Fukawa, Odawara, Kanagawa, Japan 250-0052
| | - S. Namba
- Marble Veterinary Medical Center, 4-1-6 Ishikawa, Fujisawa, Kanagawa, Japan 252-0815
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Yamaji S, Uchida H, Mori S, Shi X, Kameo S, Aono H. The Current Situations and Issues in Phase I Studies in Japan (Phase I Capability from Pharmaceutical Company Perspective). Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32133-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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11
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Furukawa H, Iwasaki K, Samukawa M, Nagamachi K, Aono H, Matsumoto T, Ohkado A. [Impact of preoperative 64-row multislice computed tomography for congenital aortic stenosis; report of a case]. Kyobu Geka 2010; 63:1078-1081. [PMID: 21066852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A 63-year-old woman was diagnosed as having severe aortic stenosis (AS) with 98 mmHg peak pressure gradient detected by echocardiography. Since, preoperative enhanced 64-row multislice computed tomography (MSCT) showed bicuspid aortic valve with only 2 sinuses of Valsalva, congenital aortic stenosis was suspected. The left and right coronary arteries originated from respective sinus of Valsalva, and severely thickened cusps of aortic valve were detected clearly by preoperative 64-row MSCT. Aortic valve replacement with a 21 mm ATS mechanical bileaflet prosthesis was performed without aortic annulus enlargement. The postoperative course was uneventful and postoperative 64-row MSCT indicated good performance of the ATS valve. Preoperative 64-row MSCT could be useful to detect complex aortic valve disease in detail. Moreover. 64-row MSCT might be a reliable tool to evaluate valvular heart disease.
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Affiliation(s)
- H Furukawa
- Department of Cardiovascular Surgery, Cardiovascular Center, Okayama Central Hospital, Okayama, Japan
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Abstract
Hovering is a miracle of insects that is observed for all sizes of flying insects. Sizing effect in insect hovering on flapping-wing aerodynamics is of interest to both the micro-air-vehicle (MAV) community and also of importance to comparative morphologists. In this study, we present an integrated computational study of such size effects on insect hovering aerodynamics, which is performed using a biology-inspired dynamic flight simulator that integrates the modelling of realistic wing-body morphology, the modelling of flapping-wing and body kinematics and an in-house Navier-Stokes solver. Results of four typical insect hovering flights including a hawkmoth, a honeybee, a fruit fly and a thrips, over a wide range of Reynolds numbers from O(10(4)) to O(10(1)) are presented, which demonstrate the feasibility of the present integrated computational methods in quantitatively modelling and evaluating the unsteady aerodynamics in insect flapping flight. Our results based on realistically modelling of insect hovering therefore offer an integrated understanding of the near-field vortex dynamics, the far-field wake and downwash structures, and their correlation with the force production in terms of sizing and Reynolds number as well as wing kinematics. Our results not only give an integrated interpretation on the similarity and discrepancy of the near- and far-field vortex structures in insect hovering but also demonstrate that our methods can be an effective tool in the MAVs design.
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Affiliation(s)
- H Liu
- Graduate School of Engineering, Chiba University, Chiba, Japan
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Aono H, Ohwada T, Kaneko N, Fuji T, Iwasaki M. The post-operative changes in the level of inflammatory markers after posterior lumbar interbody fusion. ACTA ACUST UNITED AC 2007; 89:1478-81. [DOI: 10.1302/0301-620x.89b11.19478] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Inflammatory markers such as the C-reactive protein (CRP), white blood cell count and body temperature are easy to measure and are used as indicators of infection. The way in which they change in the early post-operative period after instrumented spinal surgery has not been reported in any depth. We measured these markers pre-operatively and at one, four, seven and 14 days postoperatively in 143 patients who had undergone an instrumented posterior lumbar interbody fusion. The CRP proved to be the only sensitive marker and had returned to its normal level in 48% of patients after 14 days. The CRP on day 7 was never higher than that on day 4. Age, gender, body temperature, operating time and blood loss were not related to the CRP level. A high CRP does not in itself suggest infection, but any increase after four days may presage infection.
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Affiliation(s)
- H. Aono
- Department of Orthopaedic Surgery, Osaka National Hospital, 2-1-14, Hoenzaka Chuo-ku, Osaka City, Osaka 540-0006, Japan
| | - T. Ohwada
- Department of Orthopaedic Surgery, Kansai Rosai Hospital, 3-1-69, Inabaso Amagasaki City, Hyogo, 660-8511, Japan
| | - N. Kaneko
- Department of Orthopaedic Surgery, Osaka Koseinenkin Hospital, 4-2-78 Fukushima, Fukushima-ku, Osaka City, Osaka 553-0003, Japan
| | - T. Fuji
- Department of Orthopaedic Surgery, Osaka Koseinenkin Hospital, 4-2-78 Fukushima, Fukushima-ku, Osaka City, Osaka 553-0003, Japan
| | - M. Iwasaki
- Department of Orthopaedic Surgery, Osaka University Graduate, School of Medicine, 2-15 Yamadaoka Suita City, Osaka 565-0871, Japan
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Sawabe T, Takahasi H, Saeki H, Niwa K, Aono H. Enhanced expression of active recombinant alginate lyase AlyPEEC cloned from a marine bacterium Pseudoalteromonas elyakovii in Escherichia coli by calcium compounds. Enzyme Microb Technol 2007. [DOI: 10.1016/j.enzmictec.2006.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ohe Y, Niho S, Kakinuma R, Kubota K, Ohmatsu H, Goto K, Nokihara H, Kunitoh H, Saijo N, Aono H, Watanabe K, Tango M, Yokoyama A, Nishiwaki Y. A phase II study of cisplatin and docetaxel administered as three consecutive weekly infusions for advanced non-small-cell lung cancer in elderly patients. Ann Oncol 2004; 15:45-50. [PMID: 14679118 DOI: 10.1093/annonc/mdh015] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND To evaluate the efficacy and safety of treatments for advanced non-small-cell lung cancer in elderly patients aged 75 years or older, we conducted a phase II study of cisplatin and docetaxel administered in three consecutive weekly infusions. PATIENTS AND METHODS The eligibility criteria for the study included the presence of chemotherapy-naive advanced non-small-cell lung cancer, age > or =75 years, Eastern Cooperative Oncology Group performance status of 0 or 1, a measurable lesion, adequate organ functions and signed informed consent. The chemotherapy regimen consisted of cisplatin (25 mg/m(2)) and docetaxel (20 mg/m(2)) on days 1, 8 and 15 every 4 weeks. RESULTS Between February 2000 and March 2002, 34 elderly patients with non-small-cell lung cancer were enrolled in the study and 33 patients were treated. Two complete responses and 15 partial responses were obtained for an objective response rate of 52% in 33 treated patients. The median survival period was 15.8 months, and the 1-year survival rate was 64%. Toxicities were mild with no grade 4 toxicities. Only grade 3 leukopenia (6%), neutropenia (12%), anemia (3%), hyponatremia (3%) and nausea/vomiting (3%) were observed. CONCLUSION Cisplatin and docetaxel administered in three consecutive weekly infusions was safe and effective for the treatment of elderly patients with chemotherapy-naive non-small-cell lung cancer.
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Affiliation(s)
- Y Ohe
- Department of Internal Medicine, National Cancer Center Hospital, Tokyo, Japan.
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Aono H, Hirakawa M, Unruh GK, Kindscher JD, Goto H. Anesthetic induction agents, sympathetic nerve activity and baroreflex sensitivity: a study in rabbits comparing thiopental, propofol and etomidate. Acta Med Okayama 2001; 55:197-203. [PMID: 11512561 DOI: 10.18926/amo/31994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
The mechanisms of arterial hypotension following intravenous anesthetic induction agents are multifactorial. The purpose of this study was to evaluate and compare the effects of thiopental, propofol and etomidate on hemodynamics, sympathetic outflow and arterial baroreflex sensitivity using not only neuraxis-intact but also totally baro-denervated rabbits. A total of 60 rabbits was anesthetized with urethane, tracheotomized, and mechanically ventilated with oxygen in nitrogen (FiO2 0.5). The left renal sympathetic nerve was isolated and placed on a bipolar electrode to record renal sympathetic nerve activity (RSNA). Thirty animals underwent a surgical preparation of total baroreceptor denervation. Bolus injections of an anesthesia induction dose of thiopental 4 mg/kg and twice the induction dose of propofol 4 mg/kg significantly decreased RSNA to the same extent (19.4+/-6.7 and 19.7+/-5.2% reduction, mean +/- SEM) and mean arterial pressure (MAP) also to the same extent (19.5+/-4.6 and 22.1+/-3.1% reduction) in the neuraxis-intact animals. RSNA was increased (34.5+/-6%) without reduction of MAP by an induction dose of etomidate, 0.3 mg/kg. Sympathetic barosensitivity was attenuated even 10 min after thiopental at 4 mg/kg or propofol at 4 mg/kg (68% and 54% of control, respectively). Propofol at 2 mg/kg (induction dose) and etomidate at 0.6 mg/kg decreased RSNA and MAP only in the baro-denervated animals. It was found from the barosensitivity study that patients can be hemodynamically unstable even though blood pressure has returned to normal after thiopental and propofol administration. Data suggest that etomidate can even stimulate the sympathetic nervous system and increase sympathetic outflow. It was also clearly found from the baro-denervated animal study that thiopental was stronger than propofol in directly suppressing sympathetic outflow at the induction dose.
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Affiliation(s)
- H Aono
- Department of Anesthesiology, University of Kansas Medical Center Kansas City, 66160, USA
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17
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Saito I, Aono H, Ikebe T, Makino Y, Ozawa H. [The validity of revised death certificates (ICD-10) for ischemic heart disease in Oita City, Japan]. Nihon Koshu Eisei Zasshi 2001; 48:584-94. [PMID: 11579482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
PURPOSE Mortality statistics have recorded an increased number of deaths from ischemic heart disease (IHD) since death certificates were revised to reflect the International Classification of Diseases, tenth revision (ICD-10) in Japan, in 1995. However, it remains unclear whether the validity of IHD diagnosis improved after this revision. METHODS We conducted the Oita Cardiac Death Survey to validate IHD certified deaths that occurred among residents aged 25-74 in Oita City, Japan (mean population = 273,000). Of the eligible 342 fatalities, 328 cases (95.0%) were examined by a review of the medical records and/or interviews with physicians. The MONICA criteria were applied and provided a reference standard against which to assess the validity of certified fatal IHD. Sensitivity (Se), positive predictive value (PPV), specificity (Sp) and negative predictive value (NPV) for IHD as the cause of death were analyzed, assuming that all validated IHD deaths were true. Multivariate logistic models were used to determine associations of false positive and false negative cases with sex, age at time of death and place of death. RESULTS Vital statistics revealed 273 fatalities to be due to cardiac disease, including 143 from acute myocardial infarctions (AMI), 27 from other IHD, 52 from heart failure and 51 from other heart diseases. After validation, 25 'definite fatal AMI' and 71 'possible fatal AMI or IHD death' were identified among all subjects according to the MONICA criteria. In all, Se, PPV, Sp and NPV for IHD certified as the cause of death were 86.5% (95% Cl: 77.6-92.3), 50.3% (42.5-58.1), 64.7% (58.1-70.7), and 92.0% (86.5-95.5), respectively. PPV among persons aged 25-54 years was remarkably decreased. PPV and Sp among out-of-hospital deaths were significantly lower than for in-hospital deaths. Multivariate logistic models revealed out-of-hospital deaths and being aged 25-54 years to be significant predictors of false positive cases (odds ratio (OR) = 2.03, P < 0.001 versus in-hospital deaths and OR = 2.79, P < 0.05 versus ages of 65-74 years, respectively). CONCLUSIONS Because false positive cases increased among certified IHD deaths after the revision, PPV and Sp percentages decreased. Out-of-hospital deaths and being aged 25-54 years were associated with increased possibility of false positive. Given our findings, IHD deaths in vital statistics may increase due to the tendency of physicians to certify IHD as the cause of death in cases without clear sign suggestive of other causes.
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Affiliation(s)
- I Saito
- Department of Public Health and Hygiene, Oita Medical University
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18
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Nakazawa M, Ishii H, Aono H, Takai M, Honda T, Aratani S, Fukamizu A, Nakamura H, Yoshino S, Kobata T, Nishioka K, Nakajima T. Role of Notch-1 intracellular domain in activation of rheumatoid synoviocytes. Arthritis Rheum 2001; 44:1545-54. [PMID: 11465706 DOI: 10.1002/1529-0131(200107)44:7<1545::aid-art278>3.0.co;2-q] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Notch family proteins are transmembrane receptors that control cell fate and proliferation. Rheumatoid arthritis (RA) is characterized by activation and abnormal proliferation/differentiation of synoviocytes. We examined the expression of Notch-1 and its role in the activation of RA synoviocytes. METHODS The expression of Notch-1 protein was detected by a specific antibody raised against the Notch-1 intracellular domain. Notch-1 messenger RNA (mRNA) expression in synoviocytes was analyzed by Northern blotting. Notch-1 protein expression was confirmed by Western blotting with anti-Notch-1 antibody. To analyze the role of Notch-1 in synoviocyte proliferation, we examined the effects of antisense Notch-1 oligonucleotides (ODNs) and MW167, a gamma-secretase inhibitor. RESULTS Notch-1 protein and mRNA were detected in synovium from all study subjects. The nucleus of RA synoviocytes showed strong staining with anti-Notch-1 antibody, whereas there was predominantly cytoplasmic staining of normal and osteoarthritis (OA) synoviocytes. Western blotting showed a distinct approximately 63-kd protein detected by anti-Notch-1 antibody in nuclear extracts from RA synoviocytes, indicating that nuclear staining of RA synovium and synoviocytes is likely to be the result of nuclear localization of Notch-1 intracellular domain (NICD). Furthermore, tumor necrosis factor alpha (TNFalpha) increased NICD nuclear translocation in a dose-dependent manner. Antisense Notch-1 ODNs partially blocked the proliferation of RA synoviocytes and inhibited TNFalpha-induced proliferation in both OA and RA synoviocytes. In addition, gamma-secretase inhibitor, which blocks the production of NICD, also inhibited TNFalpha-induced proliferation of RA synoviocytes. CONCLUSION Our results demonstrate the expression of Notch-1 in synoviocytes and the presence of Notch-1 fragment in the nuclei of RA synoviocytes and suggest the involvement of Notch-1 signaling in the TNFalpha-induced proliferation of RA synoviocytes.
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MESH Headings
- Amyloid Precursor Protein Secretases
- Antisense Elements (Genetics)
- Arthritis, Rheumatoid/pathology
- Arthritis, Rheumatoid/physiopathology
- Aspartic Acid Endopeptidases
- Blotting, Northern
- Blotting, Western
- Cell Division/drug effects
- Cell Division/physiology
- Cell Nucleus/chemistry
- Cells, Cultured
- Endopeptidases/metabolism
- Enzyme Inhibitors/pharmacology
- Fluorescent Antibody Technique
- Gene Expression/drug effects
- Humans
- Membrane Proteins/analysis
- Membrane Proteins/chemistry
- Membrane Proteins/genetics
- Osteoarthritis, Knee/pathology
- Osteoarthritis, Knee/physiopathology
- Peptides
- Protein Structure, Tertiary
- RNA, Messenger/analysis
- Receptor, Notch1
- Receptors, Cell Surface
- Signal Transduction/physiology
- Synovial Membrane/chemistry
- Synovial Membrane/pathology
- Transcription Factors
- Tumor Necrosis Factor-alpha/pharmacology
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Affiliation(s)
- M Nakazawa
- St Marianna University School of Medicine, Kanagawa, Japan
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19
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Kawai J, Shinagawa A, Shibata K, Yoshino M, Itoh M, Ishii Y, Arakawa T, Hara A, Fukunishi Y, Konno H, Adachi J, Fukuda S, Aizawa K, Izawa M, Nishi K, Kiyosawa H, Kondo S, Yamanaka I, Saito T, Okazaki Y, Gojobori T, Bono H, Kasukawa T, Saito R, Kadota K, Matsuda H, Ashburner M, Batalov S, Casavant T, Fleischmann W, Gaasterland T, Gissi C, King B, Kochiwa H, Kuehl P, Lewis S, Matsuo Y, Nikaido I, Pesole G, Quackenbush J, Schriml LM, Staubli F, Suzuki R, Tomita M, Wagner L, Washio T, Sakai K, Okido T, Furuno M, Aono H, Baldarelli R, Barsh G, Blake J, Boffelli D, Bojunga N, Carninci P, de Bonaldo MF, Brownstein MJ, Bult C, Fletcher C, Fujita M, Gariboldi M, Gustincich S, Hill D, Hofmann M, Hume DA, Kamiya M, Lee NH, Lyons P, Marchionni L, Mashima J, Mazzarelli J, Mombaerts P, Nordone P, Ring B, Ringwald M, Rodriguez I, Sakamoto N, Sasaki H, Sato K, Schönbach C, Seya T, Shibata Y, Storch KF, Suzuki H, Toyo-oka K, Wang KH, Weitz C, Whittaker C, Wilming L, Wynshaw-Boris A, Yoshida K, Hasegawa Y, Kawaji H, Kohtsuki S, Hayashizaki Y. Functional annotation of a full-length mouse cDNA collection. Nature 2001; 409:685-90. [PMID: 11217851 DOI: 10.1038/35055500] [Citation(s) in RCA: 487] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The RIKEN Mouse Gene Encyclopaedia Project, a systematic approach to determining the full coding potential of the mouse genome, involves collection and sequencing of full-length complementary DNAs and physical mapping of the corresponding genes to the mouse genome. We organized an international functional annotation meeting (FANTOM) to annotate the first 21,076 cDNAs to be analysed in this project. Here we describe the first RIKEN clone collection, which is one of the largest described for any organism. Analysis of these cDNAs extends known gene families and identifies new ones.
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Affiliation(s)
- J Kawai
- Laboratory for Genome Exploration Research Group, RIKEN Genomic Sciences Center, Yokohama Institute, Kanagawa, Japan
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20
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Yano R, Nakamura T, Aono H, Wakiya Y, Masada M. [The amount of the loss of cyclosporine A dose correlated with the amount of leaching di (2-ethylhexyl) phthalate from polyvinyl chloride infusion tube]. YAKUGAKU ZASSHI 2001; 121:139-44. [PMID: 11218727 DOI: 10.1248/yakushi.121.139] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An interaction between cyclosporine A (CyA) injection and infusion tubes were examined. We used polyvinyl chloride (PVC) and polybutadiene (PB) tubes. CyA injection (Sandimmun) was diluted (0.495 mg CyA/ml) with saline and dripped through infusion tubes. The amounts of unsolved substances, loss of CyA dose and leached di (2-ethylhexyl) phthalate (DEHP) during the drip study were compared. CyA was not lost into the PB tube and no DEHP was leached. Therefore, using PVC tube, 11.9 mg of CyA were lost with in 24 h after the beginning of the administration, and the concentration of leached DEHP amounted to 93.6 micrograms/ml at 12 h. We also investigated the effects of the component of the einfusion solution on the loss of CyA into PVC tube using saline, electrolyte maintenance solution, 5% glucose and 10% maltose. Sugar-containing solutions were found to have less effects than other solutions on the loss of CyA dose and DEHP leaching. The leaching of DEHP may be a major factor for the generation of unsolved substances and the loss of CyA dose. In the clinical use of CyA injection, PB tube is the best selection and the sugar-containing solution is a second selection when PB infusion tubes are hard to obtain.
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Affiliation(s)
- R Yano
- Department of Hospital Pharmacy, Fukui Medical University, 23 Shimoaizuki, Matsuoka-cho, Yoshida-gun, Fukui 910-1193, Japan
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Matsuno H, Yudoh K, Watanabe Y, Nakazawa F, Aono H, Kimura T. Stromelysin-1 (MMP-3) in synovial fluid of patients with rheumatoid arthritis has potential to cleave membrane bound Fas ligand. J Rheumatol 2001; 28:22-8. [PMID: 11196534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
OBJECTIVE To investigate the relationship between matrix metalloproteinases (MMP) and the soluble form of Fas ligand (sFasL) in the synovial fluid (SF) of patients with rheumatoid arthritis (RA), and to determine which MMP have a major role in cleaving FasL. METHODS The concentrations of sFas and sFasL in SF from 48 patients with RA and 43 patients with osteoarthritis (OA) were measured using specific ELISA. The levels of different MMP (MMP-1, 2, 3, 7, 9) in SF were also measured by ELISA. The active forms of gelatinases were detected by gelatin zymogram. Human FasL-expressing transfected cells (hFasL/L5178Y) were used to investigate whether FasL is cleaved from membrane bound FasL. RESULTS Significantly higher levels of MMP-1, 3, and 9 were found in SF from RA patients compared to OA patients, but MMP-7 was not detectable in either group. The concentrations of sFas and sFasL in SF were also higher in RA than in OA patients. However, there was no relationship between the concentration of sFas and sFasL. Among MMP, MMP-3 concentrations in SF were closely correlated with the level of sFasL and with disease activity of RA. Enzymatic cleavage assay indicated that MMP-3 has potential to cleave the FasL expressed on hFasL/L5178Y cells and to produce sFasL. CONCLUSION There was significant correlation between the concentration of sFasL and MMP-3 in SF of patients with RA. In addition, our data indicate that the shedding of FasL may be regulated by MMP-3 in the joint of patients with RA.
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Affiliation(s)
- H Matsuno
- Department of Orthopaedic Surgery, Toyama Medical and Pharmaceutical University, Japan.
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22
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Abstract
Advanced arterial wall calcification in atherosclerosis imposes a serious rupturing effect on the aorta. However, the mechanism of dystrophic calcification linked to hyperlipidemia, that causes atherosclerosis remains unknown. Emerging morphological and biochemical evidence reveals that calcifiable vesicles may have a role in plaque calcification. To determine whether a high cholesterol diet can induce arterial calcification and produce or activate calcifiable vesicles in aortas, a rabbit model was used. After 2 months of daily high lipid feeding (supplemented with 2% cholesterol and 6% peanut oil), typical atherosclerotic lesions developed. However, the mineral, if present in aortas, was insufficient to be detected by Fourier transform-infrared spectroscopy (FT-IR) or alizarin red staining, indicative of a non-calcifying stage of atherosclerosis. Small segments of thoracic aortas were digested in a crude collagenase solution to release calcifiable vesicles. Vesicles were also isolated from normal aortas as control to consider the possibility that membrane vesicles may be produced by crude collagenase digestion, which could cause the degradation of some cells. Calcifiable vesicles were precipitated at 300,000 x g after subcellular particles were removed by centrifugation at 30,000 x g. Calcifiability of isolated vesicles was then tested using calcifying media containing physiological levels of Ca2+ and Pi and 1 mM ATP. Electron microscopic observations showed that the isolated vesicles were heterogeneous in size and shape and capable of depositing electron dense particles. Fourier transform infrared spectroscopic analysis of the deposited particles revealed the presence of an amorphous mineral phase. The spectroscopic mineral to matrix ratios, related to the amount of mineralization, indicated that vesicles from cholesterol-fed rabbits produced more minerals than control vesicles obtained from the normal aortas. Alizarin red staining for mineral further demonstrated substantially higher calcifiability of the experimental vesicles. A 3-5 h exposure of the vesicles to calcifying media caused significant deposition of 45Ca and 32Pi in a vesicle protein-concentration dependent manner. Similar to previously reported observations with human atherosclerotic aorta vesicles, rabbit vesicles were enriched in ATP-hydrolyzing enzymes including Mg2+- or Ca2+-ATPase and NTP pyrophosphohydrolase that are implicated in normal and pathological calcification. Altogether, these observations suggest that accumulation of the released calcifiable vesicles, as a result of high cholesterol diets, may have a role in dystrophic calcification in hyperlipidemia-related atherosclerosis.
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Affiliation(s)
- H H Hsu
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City 66160-7410, USA.
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23
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Nagashima M, Wauke K, Hirano D, Ishigami S, Aono H, Takai M, Sasano M, Yoshino S. Effects of combinations of anti-rheumatic drugs on the production of vascular endothelial growth factor and basic fibroblast growth factor in cultured synoviocytes and patients with rheumatoid arthritis. Rheumatology (Oxford) 2000; 39:1255-62. [PMID: 11085806 DOI: 10.1093/rheumatology/39.11.1255] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE To examine whether different combinations of disease-modifying anti-rheumatic drugs (DMARDs), including bucillamine (BUC), gold sodium thiomalate (GST), methotrexate (MTX), salazosulphapyridine (SASP) and dexamethasone (DEX; a steroid), act by inhibiting the production of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) in cultured synoviocytes, causing a decrease in their serum concentrations in patients with rheumatoid arthritis (RA). METHODS The VEGF and bFGF concentrations in cultured synoviocytes and peripheral blood from patients with RA were measured by enzyme-linked immunosorbent assay and their serum concentrations were measured at two time points. RESULTS BUC and GST inhibited VEGF production even when given alone, and a combination of BUC, GST and MTX with DEX also inhibited VEGF production. None of the DMARDs or DEX inhibited bFGF production when given alone, but a combination of SASP and GST inhibited the production of bFGF in cultured synoviocytes. Serum VEGF concentrations were significantly decreased 6 months after the commencement of medication compared with their concentrations before medication. CONCLUSION Our results show that the effects of a combination of DEX with any two of BUC, GST, SASP and MTX on the production of VEGF and bFGF in cultured synoviocytes and on the serum concentrations of VEGF in patients with RA may be based on synergistic or additive effects of the drugs.
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Affiliation(s)
- M Nagashima
- Department of Joint Disease and Rheumatism, Nippon Medical School, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, Japan
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Saito I, Folsom AR, Aono H, Ozawa H, Ikebe T, Yamashita T. Comparison of fatal coronary heart disease occurrence based on population surveys in Japan and the USA. Int J Epidemiol 2000; 29:837-44. [PMID: 11034966 DOI: 10.1093/ije/29.5.837] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Although vital statistics have indicated large Japanese-American differences in mortality rates for coronary heart disease (CHD), the magnitude of difference has not been documented well using comparable validation of cause of death. METHODS Population-based fatal CHD data were compared between the Oita Cardiac Death Survey, Japan and the Atherosclerosis Risk in Communities (ARIC) Study, USA. Both studies (population: Oita City 198 093; the ARIC comunities 286 820) identified possible fatal CHD events (International Classification of Diseases, Ninth Revision [ICD-9]: 410-414, 250, 401-402, 427-429, 440, and 798-799) among residents aged 35-74 years during 1992-1993. Comparable criteria for classifying cause of death were applied. Sex-specific, age-adjusted mortality rates of CHD were calculated by place of death. RESULTS In all, 330 deaths in Oita and 1398 in the ARIC communities had eligible ICD-9 death certificate codes; CHD codes (ICD-9 410-414) comprised 30.6% of investigated deaths in Oita and 58.6% in ARIC. For men, the non-validated rate ratio for CHD deaths (ARIC:Oita City) was 5.9 (95% CI : 4.2-8.5), which fell to 4.7 (95% CI : 3.5-6.4) with validation and inclusion of sudden deaths within one hour of onset as fatal CHD. For women, the overall non-validated rate ratio was 4.6 (95% CI : 2.8-7.6), which fell to 3.9 (95% CI : 2.4-6.3) with validation and but there was little further change when the sudden deaths were added. CONCLUSIONS Our results suggest that differences in fatal CHD rates between Japanese and Americans were not as large as suggested by vital statistics when events were validated and sudden deaths were included.
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Affiliation(s)
- I Saito
- Department of Public Health and Hygiene, Oita Medical University, Oita, Japan.
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25
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Tsuji F, Matsuoka H, Aono H, Takai M, Horiuchi M, Nishimura K, Mita S. Effects of sulfhydryl compounds on interleukin-1-induced vascular endothelial growth factor production in human synovial stromal cells. Biol Pharm Bull 2000; 23:663-5. [PMID: 10823686 DOI: 10.1248/bpb.23.663] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We investigated the effects of various sulfhydryl compounds on interleukin-1 (IL-1)-induced vascular endothelial growth factor (VEGF) production in human synovial stromal cells (HSSC). HSSC stimulated by IL-1beta (100 ng/ml) produced VEGF and interleukin-6 (IL-6) in vitro. Monosulfhydryl compounds, N-acetylcysteine, D-penicillamine, tiopronin and the bucillamine-like disulfhydryl compound, compound A scarcely affected VEGF or IL-6 production at concentrations of 10(-5) and 10(-4) M. However, the disulfhydryl compound, bucillamine inhibited VEGF production but not IL-6 production at concentrations of 10(-5) and 10(-4) M. These results suggest that bucillamine may be a selective inhibitor of IL-1-induced VEGF production in HSSC, and that inhibition of VEGF production may require not only SH groups but also a specific chemical structure.
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Affiliation(s)
- F Tsuji
- Discovery Research Division, Santen Pharmaceutical Co., Ltd., Osaka, Japan.
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Abstract
PURPOSE To elucidate mechanisms by which remifentanil, an ultra-short-acting mu-opioid receptor agonist, causes hypotension and bradycardia. METHODS Mean arterial pressure (MAP), heart rate (HR) and renal sympathetic nerve activity (RSNA) were measured and recorded after bolus injections of 1, 2 or 5 microg x kg(-1) of remifentanil in neuraxis intact (n=6 for each dose) and baro-denervated rabbits (n=6 for each dose). Arterial baroreflex sensitivity was assessed by depressor tests. An additional six baro-denervated animals received remifentanil, 5 microg x kg(-1) after pretreatment with naloxone, 40 microg x kg(-1). RESULTS All values were expressed in % change from baseline. In the neuraxis intact animals, MAP and HR were decreased briefly immediately after remifentanil injection. RSNA was increased dose-dependently: 137 +/- 8% (mean +/- SE), 170 +/- 14% (P < 0.05) and 225 +/- 29% (P < 0.05) after 1, 2 and 5 microg x kg(-1) remifentanil, respectively. RSNA was increased even after MAP and HR had returned to baseline values. The depressor tests revealed that remifentanil did not attenuate arterial baroreflex sensitivity. In the baro-denervated animals, MAP and HR decreased gradually to 77 +/- 3% (P < 0.05) and 94 +/- 1% (P < 0.05), respectively 300 sec after 5 microg x kg(-1) remifentanil. At that time, increased RSNA (159 +/- 9%, P < 0.05) had returned to baseline. Pretreatment with naloxone in the baro-denervated animals abolished these changes. CONCLUSION Remifentanil decreases HR and MAP by its central vagotonic effect and by stimulating peripheral mu-opioid receptors. These effects appear to be counteracted and masked by its central sympathotonic effect and by maintaining arterial baroreflex integrity.
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Affiliation(s)
- K Shinohara
- Department of Anesthesiology, University of Kansas Medical Center, Kansas City 66160-7415, USA
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Yokoyama K, Araki S, Sato H, Aono H. Circadian rhythms of seven heavy metals in plasma, erythrocytes and urine in men: observation in metal workers. Ind Health 2000; 38:205-212. [PMID: 10812843 DOI: 10.2486/indhealth.38.205] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
To elucidate circadian rhythms (variation within a day) of 7 toxic or essential metals in plasma and erythrocytes in relation to the rhythms in urine in men, 19 male metal foundry workers were examined; they were exposed to lead (Pb), zinc (Zn) and copper (Cu) occupationally but separated from the exposure during the study. Circadian rhythms were found for plasma concentration of Pb, cadmium (Cd), Zn, Cu and chromium (Cr) in the workers. Circadian rhythms were also found for Pb, inorganic mercury (Hg), Zn and Cr in erythrocytes and for all metals except Zn in urine. Both the plasma and urinary levels of Pb, Cd, Cu and Cr together with urinary excretion of Mn and creatinine tended to decrease during night hours; both the erythrocyte and urinary levels of Hg together with both the plasma and erythrocyte levels of Zn tended to increase during morning hours. The results of profile analysis suggested that the circadian rhythm of Pb in urine was affected more strongly by its plasma and erythrocyte rhythms than by the rhythm of creatinine in urine, i.e. the rhythm of glomerular filtration; the urinary rhythms of Cd, Cr, and Mn were affected more by the creatinine rhythm; and the urinary rhythm of Cu was affected by both its plasma and creatinine rhythms. On the other hand, the urinary rhythm of Hg was assumed to be independent of the creatinine rhythm and be affected by its erythrocyte rhythm. The present study suggested that different biological limit values might be needed for different hours of the day especially for shift workers who are exposed to various heavy metals. Instead, further studies should be conducted to find the adjustment methods by which no circadian rhythms are discerned.
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Affiliation(s)
- K Yokoyama
- Department of Public Health and Occupational Medicine, Graduate School of Medicine, University of Tokyo, Japan
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Hato N, Honda N, Gyo K, Aono H, Murakami S, Yanagihara N. [Treatment of Bell's palsy with acyclovir and prednisolone]. Nihon Jibiinkoka Gakkai Kaiho 2000; 103:133-8. [PMID: 10737002 DOI: 10.3950/jibiinkoka.103.133] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Many current studies have suggested that herpes simplex virus is a probable cause of Bell's palsy, and that treatment with antiviral agents such as acyclovir might benefit the patients. In the present study, 69 patients with Bell's palsy were treated with oral administration of acyclovir (2000 mg/day) and prednisolone (60-40 mg/day) at Ehime University Hospital between Oct. 1995 and Dec. 1998. Patients enrolled in this study met the following criteria: 1) severe or complete paralysis with a score lower than 20 by the 40-point Japanese grading system, and 2) treatment started within 7 days of onset. The overall recovery rate was 95.7% (66/69). The rate in patients who started this treatment within 3 days after disease onset was 100%, and this early treatment was highly efficacious in the prevention of nerve degeneration and resulted in a significantly better recovery. By comparison, the recovery rate in patients whose treatment was started 4 days or more after onset was only 84.2%. All patients who were given a diagnosis of zoster sine herpete and treated with acyclovir-prednisolone had a good outcome. These results suggest that early treatment, within 3 days after palsy onset, is necessary for effective acyclovir-prednisolone therapy of Bell's palsy.
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Affiliation(s)
- N Hato
- Department of Otolaryngology, Ehime University School of Medicine
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Tamura S, Takemoto Y, Takami S, Kinoshita M, Kumano Y, Aono H, Mori M, Kakishita E. Efficacy of all-trans retinoic acid for molecular relapse of acute promyelocytic leukemia during remission. Oncol Rep 1999; 6:683-5. [PMID: 10203615 DOI: 10.3892/or.6.3.683] [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: 11/05/2022] Open
Abstract
We analyzed the efficacy of all-trans retinoic acid (ATRA) as an early treatment for four acute promyelocytic leukemia (APL) patients in remission who were PML/RARalpha-positive by reverse transcription-polymerase chain reaction or fluorescence in situ hybridization. ATRA 45 mg/m2 was administered orally. All became negative for PML/RARalpha transcripts after 3 to 6 months of ATRA treatment. However, the PML/RARalpha transcripts subsequently reverted to positive in three cases. Although retreatment with ATRA failed to prevent hematological relapse in two patients, one case remains in hematological remission. No serious side effects were encountered during ATRA treatment. These findings suggest that early treatment of ATRA for PML/RARalpha-positive APL patients in remission may have a therapeutic benefit and prolong the duration of hematological remission without chemotherapy.
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Affiliation(s)
- S Tamura
- Second Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
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Nagashima M, Yoshino S, Aono H, Takai M, Sasano M. Inhibitory effects of anti-rheumatic drugs on vascular endothelial growth factor in cultured rheumatoid synovial cells. Clin Exp Immunol 1999; 116:360-5. [PMID: 10337031 PMCID: PMC1905271 DOI: 10.1046/j.1365-2249.1999.00876.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Vascular endothelial growth factor (VEGF) is a potent inducer of angiogenesis and is constitutively expressed in the synovium of rheumatoid arthritis (RA). Over-expression of VEGF may play an important role in pathogenic vascularization and synovial hyperplasia of RA. In the present study, we examined whether disease-modifying anti-rheumatic drugs (DMARDs), including bucillamine (BUC), gold sodium thiomalate (GST), methotrexate (MTX) and salazosulfapiridine (SASP), act by inhibiting the production of VEGF by cultured synovial cells of patients with RA. Treatment of cultured synoviocytes with lipopolysaccharide (LPS) significantly increased VEGF production by cultured synovial cells. BUC significantly inhibited LPS-induced VEGF production, while GST tended to inhibit the production of VEGF. The inhibitory effects on VEGF production were dose-dependent. In contrast, MTX and SASP did not affect VEGF production. Reverse transcriptase-polymerase chain reaction (RT-PCR) analysis showed that BUC also inhibited LPS-induced VEGF mRNA expression in RA synovial cells. The present study provides the first evidence that BUC inhibits VEGF production and the expression of its mRNA in synovial cells of RA patients. Our results indicate that the anti-rheumatic effects of BUC are mediated by suppression of angiogenesis and synovial proliferation in the RA synovium through the inhibition of VEGF production by synovial cells.
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Affiliation(s)
- M Nagashima
- Department of Joint Disease and Rheumatism, Nippon Medical School, Tokyo, Japan
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Tsuji F, Miyake Y, Aono H, Kawashima Y, Mita S. Effects of bucillamine and N-acetyl-L-cysteine on cytokine production and collagen-induced arthritis (CIA). Clin Exp Immunol 1999; 115:26-31. [PMID: 9933417 PMCID: PMC1905176 DOI: 10.1046/j.1365-2249.1999.00749.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We investigated the effects of bucillamine and N-acetyl-L-cysteine (NAC) on cytokine production and CIA. Bucillamine and NAC inhibited NF-kappaB activation and tumour necrosis factor-alpha (TNF-alpha) mRNA expression in human monocytic leukaemia cell line THP-1, and cytokine production from monocyte cell lines at concentrations >10-3 M. They also inhibited cytokine production and CIA in mice at a dose of 500 mg/kg. These results suggest that NF-kappaB inhibitors such as bucillamine and NAC may inhibit cytokine-related diseases, including arthritis.
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Affiliation(s)
- F Tsuji
- Discovery Research Division, Santen Pharmaceutical Co., Ltd, Osaka, Japan
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Aono H, Ito M, Ozawa H, Waki T, Magari Y, Bello MC, Rodoriguez AG. Lipoprotein(a) concentrations in healthy subjects in the Dominican Republic. Comparison with Japanese. Jpn Heart J 1999; 40:65-70. [PMID: 10370398 DOI: 10.1536/jhj.40.65] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Previous studies have shown that serum concentrations of lipoprotein(a) [Lp(a)] are markedly different among different ethnic groups. We examined the serum levels of total cholesterol, high density lipoprotein (HDL) cholesterol and Lp(a) in apparently healthy subjects aged 20-69 years in Japan (n = 865) and the Dominican Republic (n = 1,893). Dominicans had significantly lower levels of total cholesterol and HDL cholesterol than Japanese. The distribution of Lp(a) concentrations were markedly skewed towards low levels in both Japanese and Dominicans. However, the mean Lp(a) concentration in Dominicans was approximately 2 times higher than in Japanese (21.7 +/- 23.7 vs 12.3 +/- 15.9 mg/dl, p < 0.001). This is possibly because the majority of Dominicans are of mixed Negroid and European blood.
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Affiliation(s)
- H Aono
- Department of Public Health and Hygiene, Oita Medical University, Japan
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Aono H, Fujisawa K, Hasunuma T, Marriott SJ, Nishioka K. Extracellular human T cell leukemia virus type I tax protein stimulates the proliferation of human synovial cells. Arthritis Rheum 1998; 41:1995-2003. [PMID: 9811055 DOI: 10.1002/1529-0131(199811)41:11<1995::aid-art15>3.0.co;2-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE The present study was designed to investigate whether the proliferation of normal synovial cells from patients with meniscus injury is stimulated by human T cell leukemia virus type I (HTLV-I) Tax protein. METHODS The effect of Tax protein on the proliferation of synovial cells was evaluated using a 3H-thymidine incorporation assay. Production of cytokines was determined by enzyme-linked immunosorbent assay. Nuclear factor kappaB (NF-kappaB) DNA binding activity and the transcription of several NF-kappaB-mediated genes was detected by electrophoretic mobility shift assay and reverse transcriptase-polymerase chain reaction. RESULTS The proliferation of synovial cells, as well as their expression of tumor necrosis factor alpha, granulocyte-macrophage colony-stimulating factor, and interleukin-6, was significantly enhanced by extracellular Tax at concentrations of 2.5 pM to 25 nM. In contrast, extracellular bacterial extract did not change the cytokine expression or the proliferation of these cells. Proliferation of synovial cells induced by Tax protein may be due to activated expression of several cytokines and protooncogenes that contain NF-kappaB regulatory sequences. CONCLUSION Our results suggest that extracellular Tax can regulate the expression of endogenous cellular genes in synovial cells and may contribute to the NF-kappaB-mediated synovial hyperplasia.
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Affiliation(s)
- H Aono
- St. Marianna University School of Medicine, Kawasaki, Japan
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Abstract
OBJECTIVE To examine whether synoviocytes from patients with rheumatoid arthritis (RA) have a stronger growth ability than those from patients with osteoarthritis (OA), and to determine whether these synoviocytes clonally expand in situ. METHODS Synovial tissues from 13 RA patients and 4 OA patients were cultured, and their ability to form colonies in soft agarose was examined. RA and OA synoviocytes were also examined in varying concentrations of fetal calf serum (FCS)-containing medium to test the effects of FCS on colony formation. DNA was extracted from clones with colony-forming ability in nonpannus lesions and from synoviocytes in pannus lesions. Restriction fragment length polymorphism (RFLP) analysis was used to examine phosphoglycerate kinase 1 (PGK-1) gene patterns. Production of cytokines by these cells was also assessed. RESULTS All 13 RA synoviocytes exhibited colony formation, whereas none of the 4 OA synoviocytes did. This tendency was also seen with all of the concentrations of FCS examined, although growth varied in a dose-dependent manner. In contrast to OA synovial clones, cloned RA synoviocytes obtained from colonies exhibited a partial RFLP PGK-1 gene pattern, suggesting that the clones originated from monoclonal cells. Of note, 3 of 7 noncloned synoviocytes from pannus lesions exhibited a monoclonal pattern. Pannus cells produced high levels of transforming growth factor beta and platelet-derived growth factor. CONCLUSION These findings suggest that synoviocytes with a strong growth ability are present in the rheumatoid synovium, and that these cells expand monoclonally, particularly in pannus lesions.
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Affiliation(s)
- F Imamura
- St. Marianna University School of Medicine, Kawasaki, Japan
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Abstract
STUDY OBJECTIVE To evaluate and compare the stress hormone responses during laparoscopic cholecystectomy during general anesthesia, general anesthesia supplemented by fentanyl, and general anesthesia combined with epidural anesthesia. DESIGN Prospective, randomized clinical study. SETTING Operating rooms at a municipal hospital. PATIENTS 52 ASA physical status I and II patients. INTERVENTIONS Anesthesia was induced slowly with sevoflurane and nitrous oxide (N2O) in oxygen (O2) by mask. Endotracheal intubation was facilitated with intravenous (i.v.) vecuronium 0.1 mg/kg. In 17 patients, anesthesia was maintained with sevoflurane and 50% N2O in O2. For another 18 patients, fentanyl 4 micrograms/kg was administered after endotracheal intubation, and anesthesia was maintained with sevoflurane and 50% N2O in O2. The remaining 17 patients received thoracic epidural anesthesia (1% mepivacaine in an 8 ml bolus followed by a continuous infusion of 1% mepivacaine, 3 ml/hr) after endotracheal inturbation, and general anesthesia was maintained with sevoflurane and 50% N2O in O2. End-tidal sevoflurane concentrations were adjusted to maintain mean arterial pressure between 70% and 100% of preinduction values. MEASUREMENTS AND MAIN RESULTS Venous blood was sampled for measurements of cortisol and catecholamines (epinephrine and norepinephrine) immediately before and 30 minutes after surgical incision. Cortisol levels increased in all three anesthesia techniques. Both catecholamines increased in patients receiving general anesthesia only; catecholamines did not increase significantly in patients receiving general anesthesia combined with epidural anesthesia; in patients receiving general anesthesia supplemented with fentanyl, both catecholamines increased significantly, but the degree of increase in norepinephrine was less than that in the general anesthesia only group. CONCLUSIONS The fentanyl supplemented group received relatively small doses insufficient to inhibit an increase in catecholamines. Thoracic epidural anesthesia depressed the sympathetic response presumably by blocking afferent sympathetic pathways under the conditions of this study. However, it did not attenuate an increase in cortisol, one of the hypothalamic-pituitary-adrenal stress hormones, during carbon dioxide laparoscopic cholecystectomy in our study. This action may be due to the inability of epidural anesthesia to block phrenic nerves that can convey noxious surgical stimulation to the central nervous system.
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Affiliation(s)
- H Aono
- Department of Anesthesiology, University of Kansas Medical Center, Kansas City 66160-7415, USA
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Yokoyama K, Araki S, Aono H, Murata K. Calcium disodium ethylenediaminetetraacetate-chelated lead as a predictor for subclinical lead neurotoxicity: follow-up study on gun-metal foundry workers. Int Arch Occup Environ Health 1998; 71:459-64. [PMID: 9826078 DOI: 10.1007/s004200050306] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To examine if chelated lead was a more predictive indicator of the subclinical effect of lead on conduction velocities of faster or slower nerve fibers as compared with blood lead (BPb). METHODS Distribution of conduction velocities (DCV) in large myelinated fibers of the sensory median nerve was measured twice at a 1-year interval in 17 male gun-metal foundry workers with BPb concentrations of 22-59 (mean 40.2) microg/dl and a mobilization yield of lead into urine (MPb) by calcium disodium ethylenediaminetetraacetate of 0.15-2.09 (mean 1.19) mg/24 h for the 1st year and in 20 healthy males (controls). RESULTS Yearly changes in the conduction velocities of faster fibers were significantly correlated with the corresponding change in MPb (P < 0.05) but not with that in BPb (P > 0.05). In ten workers showing an increase in MPb during the 1-year period (0.44 mg/24 h on average) the conduction velocities of faster fibers were decreased significantly, resulting in the values being significantly lower in all the workers combined than in the controls (P < 0.05). On the other hand, in the remaining workers, who showed a lesser extent of reduction in MPb (0.08 mg/24 h on average), the DCV did not change (P > 0.05). CONCLUSION Chelated lead might be a more predictive indicator of the effect of lead on the conduction velocities of faster fibers than blood lead.
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Affiliation(s)
- K Yokoyama
- Department of Public Health and Occupational Medicine, Graduate School of Medicine, University of Tokyo, Japan
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Goto A, Ozawa H, Aono H, Saito I, Ikebe T. [Study on blood glucose control of subjects with borderline type abnormality in 75 G oral glucose tolerance test values. The establishment of a high risk group on the basis of yearly observations]. Nihon Koshu Eisei Zasshi 1998; 45:645-52. [PMID: 9757772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
SUBJECTS AND METHODS 227 of subjects with a 2-hour plasma glucose concentration of 120-199 mg/dl were selected from 413 participants who had two or more 75 g OGTT in health examinations from 1987-1995. From these subjects we established 8 groups according to initial 2-hour plasma glucose concentration 120-199 mg/dl stratified by 10 mg/dl, and calculated the total percentages of participants whose 2-hour plasma glucose concentration reached 200 mg/dl or greater over a 1-8 years (2.7 +/- 1.7 years, mean +/- SD) observation period. In 36 subjects who were tested annually over a four year period (4 times), the mean values of their 4 values were analyzed for relationships to coefficients of variation of the 2-hour plasma glucose. RESULTS By stratified groups (from lowest to highest) of those with an initial plasma glucose concentration of 120-159 mg/dl, 7.4%, 12.1%, 16.1%, and 15.0% attained values of 200 mg/dl and higher, respectively in 1-8 years. On the other hand, 29.6%, 29.6%, 39.1%, and 47.4% of those with an initial plasma glucose concentration of 160-199 mg/dl moved to a diabetic type after 1-8 years, respectively. The percentages of those who ended up with levels of 200 mg/dl and greater at 2-hours tended to increase in subjects whose initial 2-hour plasma glucose concentration was over 160 mg/dl in comparison with patients below that initial level. CONCLUSIONS From these results, it appears that subjects with 160-199 mg/dl 2-hour glucose concentration, which is considered a borderline status, are at high risk for future abnormal levels (> 200 mg/dl at 2-hours) and should be managed as a high risk level group for prevention of diabetes.
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Affiliation(s)
- A Goto
- Hita-Kusu Health Center, Oita Prefectural Government
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Sata F, Araki S, Murata K, Aono H. Behavior of heavy metals in human urine and blood following calcium disodium ethylenediamine tetraacetate injection: observations in metal workers. J Toxicol Environ Health A 1998; 54:167-178. [PMID: 9643870 DOI: 10.1080/009841098158881] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
To evaluate the effects of calcium disodium ethylenediamine tetraacetate (CaEDTA) on the behavior of 8 heavy metals in human urine and blood, CaEDTA was administered for 1 h by intravenous injection to 18 male metal foundry workers, whose blood lead concentrations (PbB) were between 16 and 59 (mean 34) microg/dl. Significant increases were found in urinary excretion of manganese, chromium, lead, zinc, and copper after the start of CaEDTA injection. Urinary chromium excretion reached a maximal level within 1 h after the start of injection, while urinary manganese, lead, and zinc excretion reached their highest concentrations between 1 and 2 h. Urinary copper excretion reached the highest level between 2 and 4 h. The rapid increases in urinary excretion of five metals were different from the "circadian rhythms," which are the normal, daily variations in renal glomerular filtration, reabsorption, and excretory mechanisms. Plasma lead concentrations were highest 1.5 h after the start of the 1-h injection, while plasma zinc concentration became lowest 5 h after the start of CaEDTA injection. Data suggest that manganese and chromium absorbed in human tissues might be mobilized by CaEDTA.
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Affiliation(s)
- F Sata
- Department of Public Health, Faculty of Medicine, University of Tokyo, Japan
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Saito I, Ozawa H, Bello MC, Moriwaki C, Ito M, Aono H, Ikebe T, Miyata A, Itoga T. Food intake and food consumption patterns of hospital workers in the dominican republic. Environ Health Prev Med 1998; 3:31-6. [PMID: 21432505 PMCID: PMC2723269 DOI: 10.1007/bf02931236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/1997] [Accepted: 12/12/1997] [Indexed: 10/21/2022] Open
Abstract
Coronary heart disease (CHD) is the leading cause of death according to official mortality statistics in the Dominican Republic. The purpose of this study was to assess food intake and food consumption patterns of Dominicans and to discuss CHD risks related to nutrient intake. The subjects were 22 men and 81 women voluntarily recruited among 230 hospital workers in Santo Domingo. The mean nutrient intake and food consumption were estimated from a single 24-hour recall method administered by trained persons who elicited each subject's previous day's intake from midnight to midnight. The mean energy intake was 2030 kcal. The mean intake of total protein, total fat and carbohydrates were 66.3g, 89.1 g and 248g, respectively. Percentage of energy from total fat was 39.5%, which was higher than WHO recommendations. But, the percentage of animal fat per total fat was 46.8%. Especially, the value in the low income group was 31.7%. Moreover, we analyzed the food consumption structure in order to understand the Dominican dietary pattern, and three factors were found to explain the characteristics on the basis of factor analysis.The low percentage of animal fat was due to the diets rich in vegetable oil. Our results suggested that it was difficult to assume that CHD risks increased as a result of the Dominican dietary pattern. This was consistent with our previous findings that the average serum cholesterol level of Dominicans was generally low.
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Affiliation(s)
- I Saito
- Department of Public Health and Hygiene, Oita Medical University, 879-5593, Idaigaoka, Hasama-machi, Oita, Japan,
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Aono H, Ozawa H, Bello MC, Ito M, Saito I. Prevalence of risk factors for coronary heart disease among Dominicans in the Dominican Republic: comparison with Japanese and Americans using existing data. J Epidemiol 1997; 7:238-43. [PMID: 9465550 DOI: 10.2188/jea.7.238] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Risk factors of coronary heart disease (CHD) in Dominicans were compared with those of Japanese and Americans for the presumption of prevalence of CHD in about 2000 persons. Dominican adults aged 20 through 76 years were medically examined in 1993. Data of nationally representative Japanese and Americans which included serum lipid levels were compared. Total cholesterol levels(TCH) in Dominicans were lower than those in Americans. High-density lipoprotein cholesterol levels in Dominicans were lower than those in Japanese and Americans. The prevalence of hypertension and current smoking rates in Dominicans were similar to that of Americans and lower than that of Japanese. TCH in Americans have substantially been declining and those in Japanese were inadequate for preventing CHD. The prevalence of CHD in Dominicans may be lower than that of Americans viewed from the recent levels of main risk factors. Community wide health programs have spread to people with hypertension a decrease in the incidence of CHD should occur.
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Affiliation(s)
- H Aono
- Department of Public Health and Hygiene, Oita Medical University, Japan
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Saito I, Ozawa H, Aono H, Ikebe T, Yamashita T. [Change of the number of heart disease deaths according to the revision of the death certificates in Oita city]. Nihon Koshu Eisei Zasshi 1997; 44:874-9. [PMID: 9528281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Aono H, Ando N, Benson K, Goto H. A553 SYMPATHETIC OUTFLOW AND BAROSENSITIVITY AFTER ANESTHESIA INDUCTION AGENTS. Anesthesiology 1997. [DOI: 10.1097/00000542-199709001-00553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Aono H, Morishita M, Sasano M, Okamoto M, Okahara A, Nakata K, Mita S. Amelioration of type II collagen induced arthritis in rats by treatment with thymulin. J Rheumatol 1997; 24:1564-9. [PMID: 9263152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To investigate the effects of thymulin (serum thymic factor + Zn2+) in collagen induced arthritis (CIA) in rats. METHODS SD rats were immunized with bovine type II collagen plus Freund's incomplete adjuvant, and thymulin was administered intraperitoneally on the first day of first immunization. We determined the level of serum thymulin by rosette inhibition assay. Effects of thymulin on CIA rats were estimated by measuring the extent of hind paw edema, the level of serum anti-type II collagen antibody, and changes in histopathological features of the affected joints. RESULTS Serum thymulin levels in CIA rats were significantly lower than in untreated rats. Thymulin diminished hind paw swelling and onset of arthritis compared with control rats. The serum anti-type II collagen antibody level was also reduced by thymulin. Histopathological examination showed inhibition of granulation tissue and new bone formation after injection of thymulin. CONCLUSION Our results suggest thymulin plays a significant role in the onset and development of CIA in rats. Our data indicate thymulin may be therapeutically effective in preventing the development of rheumatoid arthritis.
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Affiliation(s)
- H Aono
- Research and Development Division, Santen Pharmaceutical Co., Ltd., Osaka, Japan
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Hanazaki M, Hashimoto M, Nogami S, Kusudo K, Aono H, Takeda A. [Effect of injection speed on sensory blockade in spinal anesthesia with 0.5% hyperbaric tetracaine]. Masui 1997; 46:777-82. [PMID: 9223880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We investigation the effect of injection speed on sensory blockade in spinal anesthesia. Forty two female patients, scheduled for total abdominal hysterectomy, were allocated randomly to 3 groups of 14 each according to the injection speed of 0.5% hyperbaric tetracaine: Group F (fast; injection speed > or = 0.2 ml.s-1), Group M (moderate; 0.1 < injection speed < 0.2 ml.s-1) and Group S (slow; injection speed < or = 0.1 ml.s-1). Spinal puncture was performed via the median approach at the L3-4 interspace with the patient in a lateral position. The maximum level of sensory blockade was assessed by means of the pin-prick method in the midline 3, 5, 10, 20, 30, 60 minutes after injection. In Group F, the level of sensory blockade became higher quickly (within 5 min), but anesthetic effects were not so satisfactory. And, in this group, there were more patients with dyspnea than in other groups. We speculate that the turbulence made by fast injection in subarachnoid space caused unsatisfactory effects. In Group S, anesthetic level was becoming higher also 20 or 30 min after injection. The fixation of anesthetics requires about 30 min. In our opinion, anesthetics injected slowly were diluted less by CSF, and the actual baricity of them was higher, and this made the difference within 30 min. In Group M, anesthetic effects and patient's condition were stable. We suppose that this injection speed (0.1-0.2 ml.s-1) is suitable for spinal anesthesia.
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Affiliation(s)
- M Hanazaki
- Department of Anesthesiology, Kochi Municipal Central Hospital
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46
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Satto I, Ozawa H, Aono H, Ikebe T, Yamashita T. [Reevaluation of heart disease deaths on death certificates and trends for ischemic heart disease mortality during the last five years in Oita city]. Nihon Koshu Eisei Zasshi 1997; 44:292-303. [PMID: 9212656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
To evaluate heart disease deaths and clarify trends for ischemic heart disease (IHD) mortality during the last five years in Oita City, we reevaluated causes of death on death certificates. In 1993, there were 253,000 people aged 25-74 in Oita City. In this population age group, there were 1,996 deaths from January 1992 through December 1993. Our subjects were 982 deaths recorded as caused by heart disease and IHD related diseases. Subjects were reevaluated on the basis of physician's interview, clinical records and police records. This IHD reevaluation was conducted by the WHO MONICA criteria. The death certificates identified 321 heart disease deaths, of which there were 80 (24.9%) acute myocardial infarctions (AMI), 22 (6.9%) other IHD, 180 (56.1%) heart failures, and 39 (12.1%) other heart diseases. The remaining 61 deaths were caused by other diseases. After reevaluation, 40 'definite' AMI and 60 'possible' AMI were recognized through the MONICA criteria, 86 sudden deaths (SD) which were defined as, 'death within 24 hours of the onset of acute symptoms and without clear signs suggesting what disease was the cause,' were also classified. Assuming that 50% of SD were due to IHD, according to some postmortem autopsy studies, aged-standardized IHD mortality per 100,000 for males was 38.3 per year and for females 17.3 per year in this period. Both mortality rates, 31% for males and 38% for females, were higher than IHD mortality statistics. Moreover, in comparison with IHD mortality estimated by reevaluation of heart disease in Oita City in 1987-88, age-standardized IHD mortality per 100,000 for males has remained basically stable, increasing from 37.8 to 38.4 during the last five years. On the other hand, mortality for females has increased from 11.2 to 17.3. Our results suggest that mortality from IHD actually was about 30% more than mortality statistics, and does not show a declining trend as mortality statistics have stated.
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Affiliation(s)
- I Satto
- Department of Public Health and Hygiene, Oita Medical University
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Yamashita T, Ozawa H, Aono H, Hosokawa H, Saito I, Ikebe T. Heart disease deaths on death certificates re-evaluated by clinical records in a Japanese city. Jpn Circ J 1997; 61:331-8. [PMID: 9152785 DOI: 10.1253/jcj.61.331] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In order to estimate the number of deaths from ischemic heart disease (IHD) in a Japanese city, we reevaluated heart disease deaths among residents aged 25-74 years by examining their clinical records. During the 2-year period from 1987 to 1988, 271 deaths among this population were attributed to heart disease. The recorded underlying cause of death was IHD in 96 cases, heart failure in 123 cases, and other heart disease in 52 cases. Re-evaluation of the cause of death yielded 57 cases of acute myocardial infarction (AMI), 85 cases of sudden death, 37 cases of heart disease other than IHD, and 63 cases of non-heart disease. In the remaining cases, there was insufficient information for evaluation. According to some autopsy studies, about 50% of sudden deaths are due to IHD. Thus, 50% of the number of sudden death cases may be added to the total number of IHD deaths. Accordingly, the total number of IHD deaths may have been 100, ie, 57 cases of AMI plus 43 cases of sudden death. The difference between the number of IHD deaths after re-evaluation and the number for which IHD was recorded as the underlying cause was small, with the former only 4% higher than the latter. The number of false-positives was equal to the number of false-negatives, and hence the number of IHD deaths recorded in this area seems to be close to the actual figure. We speculate that more accurate death certification will result in a decrease in the total number of deaths attributable to heart disease, as in 23% of deaths attributed to heart disease the underlying cause of death was not in fact heart disease.
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Affiliation(s)
- T Yamashita
- Department of Public Health and Hygiene, Oita Medical University, Japan
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Xue C, Takahashi M, Hasunuma T, Aono H, Yamamoto K, Yoshino S, Sumida T, Nishioka K. Characterisation of fibroblast-like cells in pannus lesions of patients with rheumatoid arthritis sharing properties of fibroblasts and chondrocytes. Ann Rheum Dis 1997; 56:262-7. [PMID: 9166000 PMCID: PMC1752353 DOI: 10.1136/ard.56.4.262] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To better understand the characteristics of synoviocytes located in the rheumatoid arthritis (RA) pannus. METHODS One cell line, termed PSC, was cloned from RA pannus lesions. Phenotypic analysis was done by contrast microscopy, indirect immunostaining, and safranin O staining. Transcription of several protooncogenes and matrix degrading enzymes was evaluated. The expression of mRNA for collagen II was detected by in situ hybridisation. The ability of anchorage independent growth was assessed by soft agarose culture. RESULTS PSCs showed a high transcription of protooncogenes c-fos, c-myc and c-jun. They also expressed mRNA for matrix degrading enzymes, such as collagenase, cathepsin B, and cathepsin L. Anchorage independent growth assay demonstrated that PSCs formed colonies in soft agar culture. Phenotypic analysis showed that this fibroblast-like PSC was stained intensely with anti-vimentin and anti-fibroblast antibody. In situ reverse transcriptase assay showed that the cell line expressed type II collagen mRNA. CONCLUSION Alternative fibroblast-like cells were identified in the pannus lesion of RA sharing properties of fibroblasts and chondrocytes. These findings suggest that this fibroblast-like cell derived from pannus lesions may contribute to the destruction of the cartilage in RA.
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Affiliation(s)
- C Xue
- Department of Rheumatology and Immunology, St Marianna University School of Medicine, Kawasaki, Japan
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Hasunuma T, Morimoto T, Tran TM, Müller-Ladner U, Aono H, Ogawa R, Gay S, Nishioka K. Tenosynovial nodulosis in a patient infected with human T cell lymphotropic virus I. Arthritis Rheum 1997; 40:578-82. [PMID: 9082948 DOI: 10.1002/art.1780400327] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We describe a 45-year-old man who presented with multiple nodules along the tendons of the scapular region, the elbows, wrists, forearms, thighs, and ankles. The patient was a carrier of human T cell lymphotropic virus I (HTLV-I), which was probably transmitted from his mother; his mother also had polyarthritis. Histopathologically, the nodules consisted of numerous, small, fibrinoid masses. The synovium adjacent to the tendon sheath was hyperplastic, with fibrinoid necrosis mimicking rheumatoid synovium. However, synovitis was not present inside the adjacent joint. HTLV-I proviral DNA was detected in the cells of the nodule, in tenosynovial cells, and in peripheral blood lymphocytes, but not in skin fibroblasts. In situ reverse transcription assay showed a high quantity of tax/rex messenger RNA in the proliferating lining cells. Based on these features, we classified this case as an atypical manifestation of HTLV-I-associated arthropathy associated with fibrinoid nodules resulting from chronic tenosynovitis.
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Affiliation(s)
- T Hasunuma
- Institute of Medical Science, St. Marianna University, Kawasaki, Japan
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Hasunuma T, Kayagaki N, Asahara H, Motokawa S, Kobata T, Yagita H, Aono H, Sumida T, Okumura K, Nishioka K. Accumulation of soluble Fas in inflamed joints of patients with rheumatoid arthritis. Arthritis Rheum 1997; 40:80-6. [PMID: 9008603 DOI: 10.1002/art.1780400112] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To examine the concentration of the soluble form of the Fas molecule (sFas) in the serum and synovial fluid of patients with rheumatoid arthritis (RA) and osteoarthritis (OA). METHODS The concentration of sFas in the serum of 15 normal subjects and in the synovial fluid and serum of 45 RA patients and 13 OA patients was determined. The erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) level, and the level of several cytokines in serum and synovial fluid were also determined. RESULTS The synovial fluid concentration of sFas was higher in RA than in OA patients (P < 0.005). The synovial fluid level of sFas correlated weakly with serum levels of CRP (r = 0.541), the ESR (r = 0.499), and with synovial fluid levels of interleukin-2 (IL-2) receptor (r = 0.544), IL-6 (r = -0.529), and intercellular adhesion molecule 1 (r = 0.514). Reverse transcription-polymerase chain reaction analysis revealed that synovial cells and infiltrating mononuclear cells expressed sFas messenger RNA in RA patients. CONCLUSION Our data suggest that accumulation of sFas in the joint cavity of RA patients may inhibit apoptosis and exacerbate the inflammatory process.
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Affiliation(s)
- T Hasunuma
- Institute of Medical Science, St. Marianna University School of Medicine, Kawasaki, Japan
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