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Sugawara T, Kumai K, Shoji M, Meguro K. Falling of older adults with cognitive impairment: a new home environment evaluation chart and a preliminary examination in the Wakuya Project. Dement Neuropsychol 2023; 17:e20220009. [PMID: 37261251 PMCID: PMC10229092 DOI: 10.1590/1980-5764-dn-2022-0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 09/18/2022] [Accepted: 10/16/2022] [Indexed: 06/02/2023] Open
Abstract
It is important to evaluate the home environment because most fractures in older adults are caused by falls indoors. However, previous studies have not separated individual abilities from environments. Also, the interrelationship between falls, cognitive function, and home environments has not been clarified. Objectives The purpose of this study was to develop an evaluation method specific to the home environment and examine the effects of environment and cognitive impairment on falls. Methods This was a case-control study analyzing 95 older adults living in the community. A Visiting Checklist for the Home Environment (VICHe) was developed and examined for reliability and validity. Inter-rater reliability (IRR) was examined by determining Cohen's kappa and the intra-class correlation coefficient. Guttman's split-half method was used for internal consistency, and Cronbach's alpha coefficient was obtained. Criterion-related validity was confirmed by Spearman's rank correlation coefficient with the Fall Risk Index's (FRI) total score of the environmental factor items. As a preliminary study, trends in the number of falls by cognitive function and home environment were examined. Results The VICHe obtained validity, but the IRR was inadequate. In contrast, the version that focused on the on-floor environment (VICHe-OFI) showed IRR for all items and validity through correlations with the FRI. The number of fallers increased in the cognitive impairment group when the home environment was bad. Conclusions Reliability and validity of the VICHe-OFI were obtained. Preliminary examination using this scale indicates that falls in the home of the elderly may be more affected by the home environment as cognitive function declines.
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Affiliation(s)
- Tomohiro Sugawara
- Tohoku University, New Industry Creation Hatchery Center, Geriatric Behavioral Neurology Project, Sendai, Miyagi, Japan
| | - Keiichi Kumai
- Tohoku University, New Industry Creation Hatchery Center, Geriatric Behavioral Neurology Project, Sendai, Miyagi, Japan
| | - Miwako Shoji
- Tohoku University, New Industry Creation Hatchery Center, Geriatric Behavioral Neurology Project, Sendai, Miyagi, Japan
| | - Kenichi Meguro
- Tohoku University, New Industry Creation Hatchery Center, Geriatric Behavioral Neurology Project, Sendai, Miyagi, Japan
- Tohoku University, Cyclotron Radioisotope Center, Sendai, Miyagi, Japan
- Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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Kasai M, Sugawara T, Takada J, Kumai K, Nakamura K, Meguro K. Self-Reported Cognitive Decline Based on the Ascertain Dementia 8 Questionnaire May Be Effective for Detecting Mild Cognitive Impairment and Dementia in the Community: The Wakuya Project. Dement Geriatr Cogn Dis Extra 2021; 11:45-50. [PMID: 33790940 PMCID: PMC7989666 DOI: 10.1159/000514324] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 11/19/2022] Open
Abstract
Introduction To assess cognitive impairment, self-awareness is an important issue. The Ascertain Dementia 8 questionnaire (AD8) is a brief observation checklist for detecting mild cognitive impairment (MCI) and dementia. After analyzing the reliability and validity of a self-reported Japanese version of the AD8 (AD8-J), we compared self- and informant-reported versions of the AD8-J. Methods A total of 93 community residents aged 75 years or older living in Wakuya, Northern Japan, agreed to participate in this study; 35 were rated as Clinical Dementia Rating (CDR) 0 (healthy), 46 as CDR 0.5 (defined herein as MCI), and 12 as CDR 1 or above (dementia, confirmed by the DSM-IV). We examined the reliability and validity using a receiver operating characteristic (ROC) curve. We analyzed the differences between self-reported and informant-reported AD8-J using a repeated measures ANOVA. Results The self-reported AD8-J showed a satisfactory reliability (i.e., Cronbach coefficient, α = 0.71; Guttman split half method coefficient = 0.60). For CDR 0 vs. CDR 0.5 or above, the area under the ROC curve was 0.74 and the cutoff score was 1/2, with a sensitivity of 70.7% and a specificity of 65.7%. Analysis of the subscores of AD8 suggested that, from the early stage of dementia, the subjects showed a subjective decline in memory and interest in hobbies/activities, as well as problems with judgment. Conclusion It is suggested that the self-reported AD8-J was effective in detecting MCI and dementia. We could use it for detecting MCI and dementia, including in those living alone, in the primary health checkup.
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Affiliation(s)
- Mari Kasai
- Geriatric Behavioral Neurology Project, New Industry Creation Hatchery Center, Tohoku University, Sendai, Japan
| | - Tomohiro Sugawara
- Geriatric Behavioral Neurology Project, New Industry Creation Hatchery Center, Tohoku University, Sendai, Japan
| | - Junko Takada
- Geriatric Behavioral Neurology Project, New Industry Creation Hatchery Center, Tohoku University, Sendai, Japan
| | - Keiichi Kumai
- Geriatric Behavioral Neurology Project, New Industry Creation Hatchery Center, Tohoku University, Sendai, Japan
| | - Kei Nakamura
- Geriatric Behavioral Neurology Project, New Industry Creation Hatchery Center, Tohoku University, Sendai, Japan
| | - Kenichi Meguro
- Geriatric Behavioral Neurology Project, New Industry Creation Hatchery Center, Tohoku University, Sendai, Japan.,Cyclotron Radioisotope Center, Tohoku University, Sendai, Japan.,Tohoku University Graduate School of Medicine, Sendai, Japan
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Kurosawa S, Shishido T, Sugawara T, Yubuta K, Horiai T, Jarý V, Yamaji A, Yoshino M, Yokota Y, Shoji Y, Kamada K, Yoshikawa A, Pejchal J, Nikl M. Scintillation properties of Y-Admixed Gd2Si2O7 scintillator. RADIAT MEAS 2019. [DOI: 10.1016/j.radmeas.2019.106123] [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: 10/26/2022]
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Sugawara T, Shindoh J, Hoshi D, Hashimoto M. Intrahepatic cholangiocarcinoma and portal hypertension developing in a patient with multicystic biliary microhamartomas. Malays J Pathol 2018; 40:331-335. [PMID: 30580365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
INTRODUCTION We report a case of intrahepatic cholangiocarcinoma and portal hypertension developing in a liver with biliary microhamartomas (von Meyenburg's complex). CASE REPORT The patient was a 55-year-old man who had a past medical history of diffuse multiple liver abscesses. During follow-up examination, a hypovascular nodule measuring 2.1 cm in diameter was incidentally found in segment 8 of the liver. Surgical resection was performed based on a suspected diagnosis of hepatocellular carcinoma. A gastrofiberscopy examination detected characteristic findings of portal hypertensive gastropathy. During the laparotomy, multiple tiny cystic lesions were observed in a diffuse pattern across the liver surface. The liver parenchyma was slightly fibrotic and haemorrhagic. A histopathological examination revealed intrahepatic cholangiocarcinoma with vascular invasions in von Meyenburg's complex. Multiple biliary adenomas were also observed among the biliary microhamartomas adjacent to the main tumour, suggesting that the malignant transformation of the biliary adenomas might have been responsible for the development of the intrahepatic cholangiocarcinoma. The histopathologic examination also revealed sinusoidal dilation and abnormal spacing of the portal tracts and central veins as evidence of portal hypertension.
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Affiliation(s)
- T Sugawara
- Toranomon Hospital, Department of Digestive Surgery, Hepatobiliary-pancreatic Surgery Division, Tokyo, Japan.
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Seike J, Doijiri R, Takahashi K, Obara D, Osawa H, Takahashi H, Sugawara T, Nozaki E, Kikuchi T. Useful parameters to distinguish between stroke and peripheral vertigo at the emergency room. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3369] [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: 10/18/2022]
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Sato A, Tsujimura H, Ono K, Wang X, Sugawara T, Ise M, Kumagai K. The primary prophylaxis of pneumocystis pneumonia by low-dose trimethoprim-sulfamethoxazole during R-CHOP therapy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw390.23] [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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Yabe K, Satoh H, Ishii Y, Jindo T, Sugawara T, Furuhama K, Goryo M, Okada K. Early Pathophysiologic Feature of Arthropathy in Juvenile Dogs Induced by Ofloxacin, a Quinolone Antimicrobial Agent. Vet Pathol 2016; 41:673-81. [PMID: 15557076 DOI: 10.1354/vp.41-6-673] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Arthropathy in dogs induced by ofloxacin, a quinolone antimicrobial agent, was pathophysiologically investigated. In the in vivo studies, ofloxacin was administered orally once or twice at 20 mg/kg/day to male juvenile (3-month-old, n = 3) or adult (36-month-old, n = 2) dogs, and the humeral and femoral heads were examined pathologically. Unlike adult dogs, fluid-filled vesicles were macroscopically observed on the articular surfaces of one juvenile dog 24 hours after a single treatment with ofloxacin. These lesions were seen in all juvenile dogs by twice dosing. Microscopically, fissures or cavity formations in the middle zone of the articular cartilage were noted only in juvenile dogs. Furthermore, the cartilage matrix from the abnormal area to the articular surface showed a decreased safranin-O staining intensity, suggesting proteoglycan depletion. Ultrastructurally, chondrocytes in the middle zone of juvenile dogs displayed dilatation of the cisternae in the rough endoplasmic reticulum as an initial hallmark. In the in vitro studies, chondrocytes isolated from the articular cartilage of naive juvenile dogs were exposed to ofloxacin at 6.3–100 μg/ml for 24 hours. Although no changes were noted in the deoxyribonucleic acid synthesis, protein synthesis, or proteoglycan release at concentrations of up to 100 μg/ml, the proteoglycan synthesis was evidently decreased in a dose-dependent manner from 12.5 μg/ml. The results obtained suggest that the inhibitory action of ofloxacin on proteoglycan syntheses in the chondrocytes may largely contribute to the early morphologic features in the articular cartilage of the juvenile dog.
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Affiliation(s)
- K Yabe
- Drug Safety Research Laboratory, Daiichi Pharmaceutical Co. Ltd., 16-13, Kita-Kasai 1-Chome, Edogawaku, Tokyo 134-8630, Japan.
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Takahashi N, Yamamoto T, Jingu K, Matsushita H, Sugawara T, Kubozono M, Umezawa R, Ishikawa Y, Kozumi M, Katagiri Y, Takeda K. Metabolic Tumor Volume and Total Lesion Glycolysis on FDG-PET/CT Are Possible Prognostic Factors for Stage I Lung Cancer Patients Treated With Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Umezawa R, Matsushita H, Sugawara T, Kubozono M, Yamamoto T, Ishikawa Y, Kozumi M, Takahashi N, Katagiri Y, Kadoya N, Takeda K, Jingu K. Evaluation of Prognostic Factors in Clinical Blood Examinations in Patients Undergoing Chemoradiation Therapy for Stage II-III Thoracic Esophageal Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Jingu K, Umezawa R, Matsushita H, Sugawara T, Kubozono M, Yamamoto T, Ishikawa Y, Kozumi M, Takahashi N, Katagiri Y. EP-1195: Chemoradiotherapy for T4 and/or M1 lymph esophageal cancer - recent experience in a Japanese high-volume center. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41187-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Murai K, Akagi T, Shimosegawa K, Sugawara T, Ishizawa K, Ito S, Murai K, Motegi M, Yokoyama H, Noji H, Tajima K, Kimura J, Chou T, Ogawa K, Harigae H, Kubo K, Oba K, Sakamoto J, Ishida Y. A prospective analysis of clinical efficacy and safety in chronic myeloid leukemia-chronic phase patients with imatinib resistance or intolerance as evaluated using European LeukemiaNet 2013 criteria. Eur J Haematol 2015; 95:558-65. [PMID: 25703064 DOI: 10.1111/ejh.12536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND We conducted a phase II study to evaluate the efficacy and safety of dasatinib in Japanese patients with imatinib-resistant or imatinib-intolerant chronic myeloid leukemia (CML). METHODS From 2009 to 2011, 54 CML-chronic phase (CP) patients with resistance (n = 40) or intolerance (n = 25) to imatinib were registered to undergo dasatinib treatment. Eleven patients showed both resistance and intolerance to imatinib. Coincidentally, the resistance criteria in this study were the same as a non-optimal response to tyrosine kinase inhibitors (TKIs) as defined in the European LeukemiaNet (ELN) 2013 recommendations. RESULTS The overall incidence rate of major molecular response (MMR) at 12 months was 62.3% (n = 47). Forty patients with resistance to imatinib who were 'warning' and 'failure' patients based on the ELN 2013 recommendations were assessed; cumulative MMR and MR(4.5) rates were 62.5% (n = 39) and 21.0% (n = 40), respectively, at 12 months. Twelve patients who showed a BCR-ABL transcript level >1% on the international scale did not achieve a MMR or discontinued dasatinib treatment because of insufficient effects. With regard to safety issues, grade 3/4 non-hematologic adverse events (AEs) were infrequent. CONCLUSIONS Patients with non-optimal responses (who meet ELN 2013 warning and failure criteria) to imatinib should be switched quickly to dasatinib, which is less toxic in CML-CP patients, to improve their prognoses. A BCR-ABL1 IS of <1% at 3 months of dasatinib administration is a landmark for good therapeutic outcome.
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Affiliation(s)
- Kazunori Murai
- Department of Hematology and Oncology, Iwate Medical University, Morioka, Japan
| | - Tomoaki Akagi
- Department of Hematology, Aomori Prefectural Central Hospital, Aomori, Japan
| | - Kenji Shimosegawa
- Department of Hematology, Iwate Prefectural Chubu Hospital, Kitakami, Japan
| | | | - Kenichi Ishizawa
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shigeki Ito
- Department of Hematology and Oncology, Iwate Medical University, Morioka, Japan
| | - Keiko Murai
- Department of Hematology, Morioka Red Cross Hospital, Morioka, Japan
| | - Mutsuhito Motegi
- Department of Internal Medicine, Omagari Kosei Medical Center, Omagari, Japan
| | - Hisayuki Yokoyama
- Department of Hematology, National Hospital Organization, Sendai Medical Center, Sendai, Japan
| | - Hideyoshi Noji
- Department of Cardiology and Hematology, Fukushima Medical University, Fukushima, Japan
| | - Katsushi Tajima
- Department of Neurology, Hematology, Metabolism, Endocrinology, and Diabetology (DNHMED), Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Jun Kimura
- Department of Hematology, Yamagata City Hospital Saiseikan, Yamagata, Japan
| | - Takaaki Chou
- Department of Internal Medicine, Niigata Cancer Center Hospital, Niigata, Japan
| | - Kazuei Ogawa
- Department of Cardiology and Hematology, Fukushima Medical University, Fukushima, Japan
| | - Hideo Harigae
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kohmei Kubo
- Department of Hematology, Aomori Prefectural Central Hospital, Aomori, Japan
| | - Koji Oba
- Department of Biostatistics, School of Public Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Interfaculty Initiative in Information Studies, The University of Tokyo, Tokyo, Japan
| | | | - Yoji Ishida
- Department of Hematology and Oncology, Iwate Medical University, Morioka, Japan
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Takahashi N, Yamamoto T, Shirata Y, Matsushita H, Sugawara T, Kubozono M, Umezawa R, Fujimoto S, Ishikawa Y, Kozumi M, Abe K, Takeda K, Jingu K. Even Local Control of Metastatic Lung Tumors Is Worse Than That of Primary Lung Cancer in Patients Treated With Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1840] [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: 10/24/2022]
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Yamamoto T, Kadoya N, Takahashi N, Matsushita H, Shirata Y, Sugawara T, Kubozono M, Umezawa R, Abe K, Fujimoto S, Ishikawa Y, Kozumi M, Takeda K, Jingu K. Impact of Tumor Attachment to the Pleura Measured by a Pretreatment CT Image on Outcome of Stage I NSCLC Treated With Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Umezawa R, Jingu K, Sugawara T, Kubozono M, Abe K, Fujimoto T, Yamamoto T, Ishikawa Y, Kozumi M, Kadoya N, Takeda K, Matsushita H. Long-Term Results of Chemoradiation Therapy for Stage II-III Thoracic Esophageal Cancer: Comparison of 3 Protocols. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1113] [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: 10/24/2022]
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Takahashi N, Miura M, Kuroki J, Mitani K, Kitabayashi A, Sasaki O, Kimura H, Imai K, Tsukamoto N, Noji H, Kondo T, Motegi M, Kato Y, Mita M, Saito H, Yoshida C, Torimoto Y, Kimura T, Wano Y, Nomura J, Yamamoto S, Mayama K, Honma R, Sugawara T, Sato S, Shinagawa A, Abumiya M, Niioka T, Harigae H, Sawada K. Multicenter phase II clinical trial of nilotinib for patients with imatinib-resistant or -intolerant chronic myeloid leukemia from the East Japan CML study group evaluation of molecular response and the efficacy and safety of nilotinib. Biomark Res 2014; 2:6. [PMID: 24650752 PMCID: PMC3994575 DOI: 10.1186/2050-7771-2-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 02/27/2014] [Indexed: 12/31/2022] Open
Abstract
Background Nilotinib is a second-generation tyrosine kinase inhibitor that exhibits significant efficacy as first- or second-line treatment in patients with chronic myeloid leukemia (CML). We conducted a multicenter Phase II Clinical Trial to evaluate the safety and efficacy of nilotinib among Japanese patients with imatinib-resistant or -intolerant CML-chronic phase (CP) or accelerated phase (AP). Results We analyzed 49 patients (33 imatinib-resistant and 16 imatinib-intolerant) treated with nilotinib 400 mg twice daily. The major molecular response (MMR) rate was 47.8% at 12 months among 35 patients who did not demonstrate an MMR at study entry. Somatic BCR-ABL1 mutations (Y253H, I418V, and exon 8/9 35-bp insertion [35INS]) were detected in 3 patients at 12 months or upon discontinuation of nilotinib. Although 75.5% of patients were still being treated at 12 months, nilotinib treatment was discontinued because of progressing disease in 1 patient, insufficient effect in 2, and adverse events in 9. There was no statistically significant correlation between MMR and trough concentrations of nilotinib. Similarly, no correlation was observed between trough concentrations and adverse events, except for pruritus and hypokalemia. Hyperbilirubinemia was frequently observed (all grades, 51.0%; grades 2–4, 29%; grades 3–4, 4.1%). Hyperbilirubinemia higher than grade 2 was significantly associated with the uridine diphosphate glucuronosyltransferase (UGT)1A9 I399C/C genotype (P = 0.0086; Odds Ratio, 21.2; 95% Confidence Interval 2.2–208.0). Conclusions Nilotinib was efficacious and well tolerated by patients with imatinib-resistant or -intolerant CML-CP/AP. Hyperbilirubinemia may be predicted before nilotinib treatment, and may be controlled by reducing the daily dose of nilotinib in patients with UGT1A9 polymorphisms. Trial registration clinicaltrials.gov: UMIN000002201
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Affiliation(s)
- Naoto Takahashi
- Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, 1-1-1 Hondo, 010-8543 Akita, Japan.
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Maeda Y, Hirasawa D, Fujita N, Obana T, Sugawara T, Ohira T, Harada Y, Yamagata T, Suzuki K, Koike Y, Kusaka J, Tanaka M, Noda Y. A prospective, randomized, double-blind, controlled trial on the efficacy of carbon dioxide insufflation in gastric endoscopic submucosal dissection. Endoscopy 2014; 45:335-41. [PMID: 23468193 DOI: 10.1055/s-0032-1326199] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND STUDY AIMS Carbon dioxide (CO2) insufflation is expected to be safe and effective in endoscopic submucosal dissection (ESD) as well as in other endoscopic procedures. The present study aimed to clarify the usefulness and safety of CO2 insufflation in gastric ESD. PATIENTS AND METHODS A total of 102 consecutive patients were randomly assigned to CO2 insufflation (CO2 group, n = 54) or air insufflation (Air group, n = 48). Abdominal pain and distension were chronologically recorded on a 100-mm visual analog scale (VAS). The volume of residual gas in the digestive tract was measured by computed tomography performed immediately after ESD. RESULTS Abdominal pain on a 100-mm VAS in the CO2 vs. Air group was 4 vs. 3 immediately after ESD, 4 vs. 4 one hour after the procedure, 3 vs. 3 three hours after the procedure, and 1 vs. 4 the next morning, showing no difference between the groups. In addition, there was no difference in abdominal distension on the 100-mm VAS over the time course of the study. The volume of residual gas in the digestive tract in the CO2 group was significantly smaller than that in the Air group (643 mL vs. 1037 mL, P < 0.001). The dose of sedative drugs did not differ between the groups. Neither the incidences of complications nor clinical courses differed between the groups. CONCLUSIONS Compared with air insufflation, CO2 insufflation during gastric ESD significantly reduced the volume of residual gas in the digestive tract but not the VAS score of abdominal pain and distension.
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Affiliation(s)
- Y Maeda
- Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan.
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Shimada Y, Ito S, Mizutani K, Sugawara T, Seike K, Tsuchiya T, Yokoi S, Nakano M, Yasuda M, Deguchi T. Bacterial loads of Ureaplasma urealyticum contribute to development of urethritis in men. Int J STD AIDS 2013; 25:294-8. [PMID: 24047884 DOI: 10.1177/0956462413504556] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Ureaplasma urealyticum could be a pathogen of non-gonococcal urethritis (NGU) in men. However, ureaplasma is often detected in men without NGU, and the proportion of cases possibly attributable to this pathogen is still undefined. We attempted to determine the bacterial loads of U. urealyticum significantly associated with NGU. The 16S rRNA genes of U. urealyticum were quantified by a real-time polymerase chain reaction-based assay in first-void urine (FVU) from 26 asymptomatic and 25 symptomatic men positive for U. urealyticum. The leucocyte counts in first-void urine (FVU) were determined as an objective measure of inflammatory response to ureaplasma in the hosts by automated quantitative urine particle analysis. Positive correlations were observed between copies of the 16S rRNA genes of U. urealyticum per ml and the leucocyte counts per µl in FVU (r = 0.49, p = 0.0003). Loads of ≥10(4) copies of the 16S rRNA gene of U. urealyticum/ml, corresponding to ≥5 × 10(3) cells of U. urealyticum/ml in FVU, were significantly associated with the presence of urethritis symptoms (p < 0.0001) and with higher leukocyte counts in FVU (p < 0.0001). The bacterial load of U. urealyticum, possibly of ≥5 × 10(3) cells of U. urealyticum/ml in FVU, could be significantly associated with the development of symptomatic NGU.
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Affiliation(s)
- Y Shimada
- Research and Development, Narita R&D Department, Mitsubishi Chemical Medience Corporation, Chiba, Japan
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Castro-Domínguez B, Leelachaikul P, Takagaki A, Sugawara T, Kikuchi R, Oyama S. Perfluorocarbon-based supported liquid membranes for O2/N2 separation. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.05.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Jingu K, Matsushita H, Takeda K, Narazaki K, Ariga H, Umezawa R, Sugawara T, Miyata G, Onodera K, Nemoto K, Yamada S. Results of chemoradiotherapy for stage I esophageal cancer in medically inoperable patients compared with results in operable patients. Dis Esophagus 2013; 26:522-7. [PMID: 22925398 DOI: 10.1111/j.1442-2050.2012.01396.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The purpose of the present study was to evaluate long-term results of chemoradiotherapy for clinical T1b-2N0M0 esophageal cancer and to compare outcomes for operable and inoperable patients. Patients with stage I esophageal cancer (Union for International Cancer Control [UICC] 2009), excluding patients with cT1a esophageal cancer, were studied. All patients had histologically proven squamous cell carcinoma. Operable patients received cisplatin and 5-fluorouracil with concurrent radiotherapy of 60 Gy including a 2-week break. Inoperable patients received nedaplatin and 5-fluorouracil with concurrent radiotherapy of 60-70 Gy without a pause. End-points were overall survival rate (OS), cause-specific survival rate (CSS), progression-free survival rate (PFS), and locoregional control rate (LC). Thirty-seven operable patients and 30 medically inoperable patients were enrolled. There was a significant difference in only age between the operable group and inoperable group (P = 0.04). The median observation period was 67.9 months. In all patients, 5-year OS, CSS, PFS, and LC were 77.9%, 91.5%, 66.9%, and 80.8%, respectively. Comparison of the operable group and inoperable group showed that there was a significant difference in OS (5-year, 85.5% vs. 68.7%, P = 0.04), but there was no difference in CSS, PFS, or LC. Grade 3 or more late toxicity according to Common Terminology Criteria for Adverse Events v 3.0 was found in seven patients. Even in medically inoperable patients with stage I esophageal cancer, LC of more than 80% can be achieved with chemoradiotherapy. However, OS in medically inoperable patients is significantly worse than that in operable patients.
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Affiliation(s)
- K Jingu
- Department of Radiation Oncology, Tohoku University School of Medicine, Sendai 980-8574, Japan.
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Affiliation(s)
- D. Hamada
- Department of Computer Science and Engineering, Waseda University, Tokyo, Japan
| | - T. Sugawara
- Department of Computer Science and Engineering, Waseda University, Tokyo, Japan
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Kim TY, Hong NH, Sugawara T, Raghavender AT, Kurisu M. Room temperature ferromagnetism with large magnetic moment at low field in rare-earth-doped BiFeO₃ thin films. J Phys Condens Matter 2013; 25:206003. [PMID: 23615045 DOI: 10.1088/0953-8984/25/20/206003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Thin films of rare earth (RE)-doped BiFeO3 (where RE=Sm, Ho, Pr and Nd) were grown on LaAlO3 substrates by using the pulsed laser deposition technique. All the films show a single phase of rhombohedral structure with space group R3c. The saturated magnetization in the Ho- and Sm-doped films is much larger than the values reported in the literature, and is observed at quite a low field of 0.2 T. For Ho and Sm doping, the magnetization increases as the film becomes thinner, suggesting that the observed magnetism is mostly due to a surface effect. In the case of Nd doping, even though the thin film has a large magnetic moment, the mechanism seems to be different.
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Affiliation(s)
- Tae-Young Kim
- Nanomagnetism Laboratory, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
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22
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Sugawara T, Zolbadral T, Nishihara K, Tsujimoto K. Accelerator-Driven System Analysis by Using Different Nuclear Data Libraries. Atom Indo 2013. [DOI: 10.17146/aij.2012.163] [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: 11/09/2022] Open
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23
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Abánades A, Álvarez-Velarde F, González-Romero E, Ismailov K, Lafuente A, Nishihara K, Saito M, Stanculescu A, Sugawara T. Monte Carlo analysis of the long-lived fission product neutron capture rates at the Transmutation by Adiabatic Resonance Crossing (TARC) experiment. Nuclear Engineering and Design 2013. [DOI: 10.1016/j.nucengdes.2012.09.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
Endocrine systems of humans and animals are disturbed by dioxin-like compounds, which are ligands of the aryl hydrocarbon receptor (AhR). It is important to determine the accumulation of dioxin-like compounds in the environment for maintenance of human health. In this study, we developed a new method for screening ligands of the AhR using a yeast hybrid system. Reporter genes constructed by the insertion of dioxin response elements were integrated into HIS and lacZ yeast genomes. Then yeast was transformed with GAL4-activated domain-fused AhR and aryl hydrocarbon receptor nuclear translocator expression constructs. At 10(-4) M of beta-naphthoflavone, which is an AhR ligand, the absorbance of optical density at 600 nm (OD 600) and beta-galactosidase activity was significantly increased. beta-galactosidase activity was increased when the concentration of 3-methylcholanthrene (MC) was increased. ATP concentration increased as concentration of MC increased up to 10(-10) M but decreased at higher concentrations. The concentration of ATP in the cell suspensions increased linearly with OD 600, used as an index of cell density (r(2) = 0.8366, F = 209.9, p < 0.0001, n = 44). The established yeast assay could possibly be used in the future to detect dioxin-like compounds in environmental samples.
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Ito S, Mine T, Sugawara T, Fujishima Y, Sasaki R, Oyake T, Murai K, Ishida Y. Feasibility of Personalized Therapy with Lenalidomide in Transplantation-Ineligible Myeloma Patients According to the European Myeloma Network Recommendation. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32192-x] [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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26
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Maeda Y, Hirasawa D, Fujita N, Obana T, Sugawara T, Ohira T, Harada Y, Yamagata T, Suzuki K, Koike Y, Yamamoto Y, Kusaka Z, Noda Y. A pilot study to assess mediastinal emphysema after esophageal endoscopic submucosal dissection with carbon dioxide insufflation. Endoscopy 2012; 44:565-71. [PMID: 22407383 DOI: 10.1055/s-0031-1291664] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Mediastinal emphysema sometimes develops following esophageal endoscopic submucosal dissection (ESD) without perforation because the esophagus has no serosa. Carbon dioxide (CO2) insufflation during esophageal ESD may reduce the incidence of mediastinal emphysema. The aim of the present study was to compare the incidence and severity of post-ESD mediastinal emphysema in patients receiving CO2 insufflation vs. standard air insufflation during esophageal ESD. PATIENTS AND METHODS A total of 27 patients who had undergone esophageal ESD with insufflation of CO2 between July 2009 and March 2010 were enrolled in this study (CO2 group). Another 105 patients who had undergone esophageal ESD with air insufflation between March 2004 and May 2009 were included as historical controls (air group). Multi-detector row computed tomography (MDCT) was carried out immediately after ESD. A conventional chest radiograph was taken the next day. Mediastinal emphysema findings on MDCT and radiography were compared between the groups. RESULTS Mediastinal emphysema detected by chest radiography was 0 % in the CO2 group vs. 6.6 % in the air group (n.s.). Mediastinal emphysema on MDCT was significantly less frequent in the CO2 group compared with the air group (30 % vs. 63 %; P = 0.002). The severity of mediastinal emphysema also tended to be lower in the CO2 group. CONCLUSIONS Whereas mediastinal emphysema detected by radiography is not so common, MDCT immediately after ESD revealed a certain prevalence of post-ESD mediastinal emphysema. Insufflation of CO2 rather than air during esophageal ESD significantly reduced postprocedural mediastinal emphysema. CO2 can be considered as insufflating gas for esophageal ESD.
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Affiliation(s)
- Y Maeda
- Department of Gastroenterology, Sendai City Medical Center, Sendai, Miyagi, Japan.
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Jingu K, Abe K, Koto M, Fujimoto K, Matsushita H, Sugawara T, Umezawa R, Kadoya N, Takeda K, Yamada S. EP-1160 DOES IMRT INCREASE LOCO-REGIONAL FAILURE IN PATIENTS WITH NASOPHARYNGEAL CANCER? A FIRST REPORT. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71493-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Seki M, Sugawara T, Yamamoto K, Takahashi T, Harigae H. [A case of intravascular large B-cell lymphoma associated with transverse myelopathy]. Gan To Kagaku Ryoho 2011; 38:1885-1888. [PMID: 22083204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present a 68-year-old man suffering from transverse myelopathy since May 2010. The spinal cord MRI showed a T2- hyperintense lesion invading the Th5 level spinal cord. Although the patient transiently responded to steroid-pulse therapy, his neurological symptoms degenerated three months after wards. On admission, he had an apparent hepatosplenomegaly, but no lymphadenopathy. A laboratory examination revealed bicytopenia and increased levels ofLDH and soluble IL-2 receptors. Histological analysis ofa skin biopsy specimen demonstrated proliferation of large atypical lymphoid cells positive for CD20 and CD79a in the small capillaries, leading to our diagnosis of intravascular large B-cell lymphoma(IVLBCL). Thus, the patient's progressive myelopathy was probably caused by IVLBCL invasion. The patient responded well to Rituximab-combined CHOP therapy(R-CHOP), and his neurological symptoms improved immediately. A spinal cord MRI showed the disappearance of the abnormal signal after two courses of R -CHOP. IVLBCL often presents with neurological manifestations, including transverse myelopathy.
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Affiliation(s)
- Masanori Seki
- Dept. of Internal Medicine, Osaki Citizen Hospital, Japan
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Abstract
ABSTRACTHydrogenated amorphous silicon (a-Si:H) films were prepared by a layer-by-layer (LBL) argon treatment technique. Thin amorphous silicon layers are first deposited and then treated by Ar. Thick films are built up by repeatedly the process many times. By reducing the deposition rate during deposition time (T, sec), a-Si:H with the gaps narrower than 1·55eV were prepared at substrate temperature lower than 300°C. These narrow-gap films contained less than 2 at.% hydrogen and had rigid Si network. Also, these narrow gap films exhibited good light soaking stability.
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Nagai H, Terai Y, Sugawara T, Imai H, Nishihara H, Hori M, Okada N. Reverse Evolution in RH1 for Adaptation of Cichlids to Water Depth in Lake Tanganyika. Mol Biol Evol 2010; 28:1769-76. [DOI: 10.1093/molbev/msq344] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [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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Abstract
An 80-year-old woman was referred to our hospital because of eosinophilia and thrombocytopenia. She presented with persistent pruritus and cough. Laboratory examinations showed persistent eosinophilia, and there was no underlying cause, consistent with hypereosinophilic syndrome (HES). After admission, she developed a neurological deficit, and microangiopathic hemolytic anemia. She was diagnosed with thrombotic thrombocytopenic purpura (TTP) and successfully treated with corticosteroids and plasmapheresis. Although TTP has been described in association with pregnancy, cancer, collagen diseases, infection, and drug intake, hypereosinophilia is not a well-documented cause of this disorder. To our knowledge, this is only the second case of TTP with HES, proved to be caused by ADAMTS13 inhibitor.
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Affiliation(s)
- Hiroto Ohguchi
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Matsumura Y, Okada Y, Hoshikawa Y, Endo C, Sado T, Sakurada A, Noda M, Sugawara T, Matsuda Y, Kondo T. [Clinical analysis of bronchoplastic surgery for lung cancer after 2000]. Kyobu Geka 2008; 61:963-967. [PMID: 18939433] [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: 05/26/2023]
Abstract
We investigated surgical complications and prognosis of bronchoplasty and bronchoplasty with pulmonary angioplasty (broncho-angioplasty) for lung cancer. Between October 2000 and October 2007, 37 bronchoplastic procedures were done in 572 patients who underwent lung resections for lung cancer. Eleven (29.7%) bronchoplasties were done with pulmonary angioplasty. There was no operative mortality and 1 hospital mortality (2.7%) causing by myocardial infarction. Six of 11 postoperative complications were bronchial complications and 2 additional lung resections were needed. The 5-year survival for all patients was 55.2% and for bronchoplasty was 57.8%. Though the 5-year survival of broncho-angioplasty was not able to calculate at present, the 3-year survival of which was 72.9%. There was no death of patients with adenocarcinoma after introduction of pre-operative assessment by FDG-PET for lymph node metastasis. These data suggest that bronchoplasty and broncho-angioplasty are safe operative procedures and could provide acceptable intermediate survivals with modern multimodality diagnostic and therapeutic tools.
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Affiliation(s)
- Y Matsumura
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
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Sugawara T. α/β Ratio of Human Lung Determined Based on Reaction on Ct Image for Carbon Ion Beam. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.528] [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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34
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Nishikawa S, Yamamura S, Sugawara Y, Matsushita M, Sugawara T. Temperature-dependent disordered structure of (BEDT-TTF) 3Cl 2·5H 2O. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308084845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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35
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Sugawara T, Matsushita M, Komatsu H, Yamamura S, Sugawara Y. Genuine organic crystal exhibiting giant negative magnetoresistance. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308083384] [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: 11/11/2022] Open
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36
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Abe S, Ishikawa I, Harigae H, Sugawara T. A new complex translocation t(5;17;15)(q11;q21;q22) in acute promyelocytic leukemia. ACTA ACUST UNITED AC 2008; 184:44-7. [PMID: 18558288 DOI: 10.1016/j.cancergencyto.2008.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2008] [Revised: 02/23/2008] [Accepted: 03/03/2008] [Indexed: 11/25/2022]
Abstract
Acute promyelocytic leukemia (APL) is associated with the t(15;17)(q22;q21) translocation which causes the fusion of the retinoic acid alpha gene (RARA) on 17q21 to the promyelocytic leukemia gene (PML) on 15q22. The two chimeric genes, PML/RARA and RARA/PML, are thought to play a role in leukemogenesis. A small proportion of patients with APL have complex or simple variants of this translocation. We report the case of a 22-year-old woman with APL carrying a complex variant translocation t(5;17;15)(q11;q12;q22) confirmed by G-banding, reverse transcription polymerase chain reaction (RT-PCR), fluorescence in situ hybridization(FISH), and spectral karyotyping analysis (SKY). The patient achieved complete remission with all-trans retinoic acid treatment and chemotherapy. These results illustrate the usefulness of combined analysis consisting of G-banding, RT-PCR, FISH, and SKY methods to identify the PML/RARA fusion gene in cases with variant t(15;17).
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Affiliation(s)
- Shori Abe
- Department of Rheumatology and Hematology, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aobaku, Sendai, Japan.
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Ishiyama T, Iijima T, Sugawara T, Shibuya K, Sato H, Terada Y, Ichikawa M, Sessler DI, Matsukawa T. The use of patient-controlled epidural fentanyl in elderly patients. Anaesthesia 2007; 62:1246-50. [PMID: 17991261 DOI: 10.1111/j.1365-2044.2007.05256.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
We studied whether delivering postoperative analgesia, using a patient-controlled epidural analgesia (PCEA) device was effective and safe in elderly patients. We enrolled 40 patients aged > 65 years (elderly group) and 40 patients aged 20-64 years (young group) scheduled for elective major abdominal surgery. PCEA infusion was started following completion of surgery. Mean (SD) fentanyl consumption (10.7 (3.7) compared with 10.5 (2.7) microg.kg(-1), p = 0.76) and number of times patients pressed the bolus switch (32 (36) compared with 44 (38), p = 0.16) during the first 24 h postoperatively were similar in the two groups. Pain scores, which were similar in both groups at rest, were significantly lower in the elderly on coughing (at 24 h, p < 0.05). In addition, average pain scores were similar at the time of PCEA bolus demands in the two groups. Elderly and young adult patients therefore required similar amounts of patient-controlled epidural fentanyl to produce satisfactory pain relief.
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Affiliation(s)
- T Ishiyama
- Yamanashi University Hospital, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan.
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Suzuki N, Ohira S, Tanaka M, Sugawara T, Nakajima K, Shishido T. Fabrication and characterization of transparent conductive Sn-doped β-Ga2O3 single crystal. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pssc.200674884] [Citation(s) in RCA: 172] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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Fujiwara T, Ikeda M, Esumi K, Fujita TD, Kono M, Tokushige H, Hatoyama T, Maeda T, Asai T, Ogawa T, Katsumata T, Sasaki S, Suzuki E, Suzuki M, Hino F, Fujita TK, Zaima H, Shimada M, Sugawara T, Tsuzuki Y, Hashimoto Y, Hishigaki H, Horimoto S, Miyajima N, Yamamoto T, Imagawa K, Sesoko S, Fujisawa Y. Exploratory aspirin resistance trial in healthy Japanese volunteers (J-ART) using platelet aggregation as a measure of thrombogenicity. Pharmacogenomics J 2007; 7:395-403. [PMID: 17245331 DOI: 10.1038/sj.tpj.6500435] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Aspirin prevents the production of thromboxane A2 (TXA2) by irreversibly inhibiting platelet cyclooxygenase, exhibiting antiplatelet actions. This agent has been reported to prevent relapse in patients with ischemic heart disease or cerebral infarction via this action mechanism. However, there are individual differences in this action, and aspirin is not effective in some patients, which is referred to as 'aspirin resistance'. In this study, we analyzed laboratory aspirin resistance by platelet aggregation in 110 healthy adult Japanese males using 24 single-nucleotide polymorphisms (SNPs) of nine genes involved in platelet aggregation/hemorrhage. Among SNPs involved in platelet aggregation, aspirin was less effective for 924T homozygote of a TXA2 receptor, 924T>C, and 1018C homozygote of a platelet membrane glycoprotein GPIbalpha, 1018C>T, suggesting that 924T and 1018C alleles are involved in aspirin resistance.
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Affiliation(s)
- T Fujiwara
- Otsuka Pharmaceutical Co., Ltd., Osaka, Japan.
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Ishikawa I, Kato C, Harigae H, Sugawara T, Tomiya Y, Yamada M, Ishizawa K, Kameoka J, Miyamura K, Sasaki T. Dose modification of imatinib by monitoring the level of BCR-ABL transcript in chronic myelogenous leukemia. TOHOKU J EXP MED 2007; 210:355-63. [PMID: 17146202 DOI: 10.1620/tjem.210.355] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Chronic myelogenous leukemia (CML) is a hematological malignancy that is characterized by the chromosome anomaly, t(9;22)(q34;q11). By this chromosomal translocation, a novel activated tyrosine kinase, BCR-ABL chimeric protein, is generated, and the protein is causative of the disease. Recently, Imatinib mesylate targeting to a BCR-ABL chimeric protein has been developed, and shown to achieve complete remission at a high rate. Patients are currently required to receive a fixed dose, 400 mg daily; however, it is possible that some of patients can maintain their remission with reduced doses of imatinib. In this study, we determined levels of BCR-ABL transcript in CML patients by real-time quantitative polymerase chain reaction analysis, and explored the possibility of individualization of therapeutic doses of imatinib. Thirty-five CML patients, including 17 newly diagnosed patients, 16 patients pre-treated with interferon-alpha, and 2 relapsed patients after allogeneic transplantation, were treated with imatinib. Complete cytogenetic response was achieved in 31 (89%) patients. Major molecular response (MMR) was achieved in 21 (60%). Complete molecular response (CMR) was achieved in 7 (20%). Imatinib was discontinued in 2 patients, one patient with MMR due to noncompliance and other patient sustaining CMR, but both patients relapsed 7 and 13 months later, respectively. The doses of imatinib were reduced in 7 patients due to its side effects, but 4 out of the 7 patients have sustained MMR, and 2 of them have sustained CMR for more than 23 months. These results indicate that some patients are able to maintain MMR with low-dose imatinib.
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MESH Headings
- Adult
- Aged
- Antineoplastic Agents/administration & dosage
- Benzamides
- Biomarkers, Tumor/analysis
- Dose-Response Relationship, Drug
- Drug Administration Schedule
- Female
- Fusion Proteins, bcr-abl/blood
- Humans
- Imatinib Mesylate
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/blood
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Male
- Middle Aged
- Neoplasm Recurrence, Local/drug therapy
- Patient Care Planning
- Piperazines/administration & dosage
- Polymerase Chain Reaction
- Pyrimidines/administration & dosage
- Remission Induction
- Treatment Outcome
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Affiliation(s)
- Izumi Ishikawa
- Department of Internal Medicine, Osaki Citizen Hospital, Osaki, Japan.
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42
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Ito M, Yamakawa K, Sugawara T, Hirose S, Fukuma G, Kaneko S. Phenotypes and genotypes in epilepsy with febrile seizures plus. Epilepsy Res 2006; 70 Suppl 1:S199-205. [PMID: 16884893 DOI: 10.1016/j.eplepsyres.2005.11.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2005] [Revised: 11/07/2005] [Accepted: 11/07/2005] [Indexed: 11/15/2022]
Abstract
In the last several years, mutations of sodium channel genes, SCN1A, SCN2A, and SCN1B, and GABA(A) receptor gene, GABRG2 were identified as causes of some febrile seizures related epilepsies. In 19 unrelated Japanese families whose probands had febrile seizures plus or epilepsy following febrile seizures plus, we identified 2 missense mutations of SCN1A to be responsible for the seizure phenotypes in two FS+ families and another mutation of SCN2A in one family. The combined frequency of SCN1A, SCN2A, SCN1B, SCN2B, and GABRG2 mutations in Japanese patients with FS+ was 15.8%. One family, which had R188W mutation in SCN2A, showed digenic inheritance, and another modifier gene was thought to take part in the seizure phenotype. The phenotypes of probands were FS+ in 5, FS+ and partial epilepsy in 10, FS+ and generalized epilepsy in 3, and FS+ and unclassified epilepsy in 1. We proposed the term epilepsy with febrile seizures plus (EFS+), because autosomal-dominant inheritance in EFS+ might be rare, and most of EFS+ display a complex pattern of inheritance, even when it appears to be an autosomal-dominant inheritance. There is a possibility of simultaneous involvement of multiple genes for seizure phenotypes.
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Affiliation(s)
- M Ito
- Department of Pediatrics, Shiga Medical Center for Children, 5-7-30 Moriyama, Moriyama 524-0022, Japan.
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Abstract
Steroid sulfatase (STS) is localized in the endoplasmic reticulum and catalyzes desulfation of 3beta-hydroxysteroid sulfates. X-linked ichthyosis (XLI) is an inherited skin disorder caused by deficiency of STS enzyme activity. We previously reported a case in which XLI with a one-base change in the STS gene and variation in amino acid Q560P developed. In this study, we performed molecular analysis to determine the importance of terminal regions of STS and the effect of mutant STS on STS enzyme activity. To examine the effect of terminal truncated STS on the enzyme activity, N- and C-terminal truncated STS expression vectors were transfected into COS-1 cells. The activity of truncated STS lacking the N-terminal regions declined, and the activity of C-terminal-truncated STS declined with extension of the truncated C-terminal region. Although the results of pulse-chase experiments showed that a one-base mutant STS (Q560P) and C-terminal-truncated STS (deltaC2 (1-559)) had no effects on protein synthesis and degradation, the mutant STS and C-terminal-truncated STS have dominant negative effect on STS enzyme activity when the STS mutant or truncated STS protein and a wild-type STS protein coexist in cells. Results of coprecipitation of the truncated STS with an STS-FLAG fusion protein showed that STS formed a dimer conformation in cells. In this study, we have shown that both the N-terminal region and C-terminal region are important for STS enzyme activity. The C-terminal mutant has a dominant negative effect on wild-type STS.
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Affiliation(s)
- T Sugawara
- Department of Biochemistry, Hokkaido Graduate School of Medicine, Nishi, Sapporo, Japan.
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Suzuki S, Sugawara T, Tabata T, Hoshikawa Y, Oishi H, Okada Y, Matsumura Y, Kondo T. 340. J Heart Lung Transplant 2006. [DOI: 10.1016/j.healun.2005.11.353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Abstract
Multiple spinal dural arteriovenous fistulas (DAVFs) have been rarely reported and only two such cases are found in the literature. A 71-year-old man complained of muscle weakness and hypesthesia in both legs and angiographically diagnosed as thoracic DAVF. The fistula was surgically treated, however, the symptoms recurred 14 months after the first treatment. Angiography revealed a new fistula in the lumbar region and this was also treated surgically. In the previously reported cases of multiple spinal DAVFs, the second fistulas were also diagnosed after the initial treatment. Symptomatic patients after the initial treatment of DAVF should be re-examined angiographically.
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Affiliation(s)
- T Sugawara
- Department of Neurosurgery, Akita University School of Medicine, Hondo, Akita City, Japan.
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Fujiwara T, Ichinohasama R, Miura I, Sugawara T, Harigae H, Yokoyama H, Takahashi S, Tomiya Y, Yamada M, Ishizawa K, Kameoka J, Sasaki T. Primary effusion lymphoma of the pericardial cavity carrying t(1;22)(q21;q11) and t(14;17)(q32;q23). ACTA ACUST UNITED AC 2005; 156:49-53. [PMID: 15588855 DOI: 10.1016/j.cancergencyto.2004.04.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2004] [Revised: 04/14/2004] [Accepted: 04/20/2004] [Indexed: 11/20/2022]
Abstract
We report a case of primary effusion lymphoma (PEL) in a 75-year-old woman without human immunodeficiency virus or hepatitis C virus, which presented as fever, chest pain, and pericardial effusion. The lymphoma cells were positive for CD20 and CD79a, and were negative for CD3 and CD10. Genomic human herpes virus 8 (HHV-8) and Epstein-Barr virus were not detected in the lymphoma cells. Cytogenetic analysis showed complex abnormalities by the G-banding technique, and spectral karyotyping (SKY) analysis provided more detailed characterization of the chromosomal aberrations, including t(1;22)(q21;q11) and t(14;17)(q32;q23). We did not detect C-MYC gene rearrangement or BCL-2 expression. She was treated successfully with six courses of the CHOP regimen. The present case demonstrated a rare category of PEL that is not associated with HHV-8 or C-MYC gene rearrangement. In addition, SKY analysis disclosed cryptic chromosomal abnormalities involving 1q21 and 17q23.
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MESH Headings
- Aged
- Chromosomes, Human, Pair 1
- Chromosomes, Human, Pair 14
- Chromosomes, Human, Pair 17
- Chromosomes, Human, Pair 22
- Female
- Humans
- Lymphoma, B-Cell/genetics
- Lymphoma, B-Cell/pathology
- Pleural Effusion, Malignant/etiology
- Pleural Effusion, Malignant/genetics
- Spectral Karyotyping
- Translocation, Genetic
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Affiliation(s)
- Tohru Fujiwara
- Department of Rheumatology, Tohoku University Graduate School of Medicine, 1-1 Seiryomachi, Aoba-ku, Sendai 980-8574, Japan.
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Oyake T, Ito S, Kowata S, Sugawara T, Murai K, Ishida Y. P-85 Myelodysplastic syndrome with bone marrow hypoplasia is associated with much higher frequency of apoptosis in CD34+ cells. Leuk Res 2005. [DOI: 10.1016/s0145-2126(05)80149-3] [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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Nishimaki K, Okada S, Miyamura K, Ohno I, Ashino Y, Sugawara T, Kondo T, Hattori T. The possible involvement of human herpesvirus type 6 in obliterative bronchiolitis after bone marrow transplantation. Bone Marrow Transplant 2004; 32:1103-5. [PMID: 14625584 DOI: 10.1038/sj.bmt.1704269] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Harigae H, Xu G, Sugawara T, Ishikawa I, Toki T, Ito E. The GATA1 mutation in an adult patient with acute megakaryoblastic leukemia not accompanying Down syndrome. Blood 2004; 103:3242-3. [PMID: 15070711 DOI: 10.1182/blood-2004-01-0016] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Sugawara T, Tabata T, Matsumura Y, Okada Y, Matsuda Y, Kondo T. A heat shock protein 70 inducer, geranylgeranylacetone, suppresses ischemia-reperfusion injury after lung transplantation in rats. J Heart Lung Transplant 2004. [DOI: 10.1016/j.healun.2003.11.326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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