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Tsuji M, Kurihara T, Isotani Y, Bujo C, Ishida J, Amiya E, Hatano M, Shimada A, Imai H, Kimura M, Shimada S, Ando M, Ono M, Komuro I. Right heart reserve function assessed with fluid loading predicts late right heart failure after left ventricular assist device implantation. Can J Cardiol 2024:S0828-282X(24)00176-4. [PMID: 38402951 DOI: 10.1016/j.cjca.2024.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 02/02/2024] [Accepted: 02/20/2024] [Indexed: 02/27/2024] Open
Abstract
BACKGROUND A left ventricular assist device (LVAD) is an effective therapeutic option for advanced heart failure. Late right heart failure (LRHF) is a complication after LVAD implantation associated with increasing morbidity and mortality; however, the assessment of right heart function, including right heart reserve function after LVAD implantation, has not been established. We focused on a fluid loading test with right heart catheterization (RHC) to evaluate right heart pre-load reserve function and investigate its impact on LRHF. METHODS Patients aged > 18 who received continuous-flow LVAD between November 2007 and December 2022 at our institution and underwent RHC with saline loading (10ml/kg for 15 min) 1 month after LVAD implantation were included. RESULTS Overall, 31 LRHF or deaths (RHF group) have occurred in 149 patients. Comparing the RHF and non-RHF groups, pulmonary artery pulsatility index (PAPi) at rest (1.8±0.89 vs. 2.5±1.4, p=0.02) and right ventricular stroke work index (RVSWi) change ratio with saline loading (0.96±0.32 vs. 1.1±0.20, p=0.03) was significantly different. The PAPi at rest and RVSWi change ratio with saline loading were identified as the postoperative risks for LRHF or death. The cohort was divided into three groups based on whether the PAPi at rest and RVSWi change ratio were low. The event-free curve significantly differed between the three groups (p<0.001). CONCLUSIONS Hemodynamic assessment with saline loading can evaluate the right ventricular pre-load reserve function of patients with LVAD. The low RVSWi change with saline loading was a risk factor for LRHF following LVAD implantation.
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Affiliation(s)
- Masaki Tsuji
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Takahiro Kurihara
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoshitaka Isotani
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Chie Bujo
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Junichi Ishida
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Eisuke Amiya
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Tokyo, Japan
| | - Masaru Hatano
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Advanced Medical Center for Heart Failure, Graduate School of Medicine, The University of Tokyo, Japan
| | - Asako Shimada
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroko Imai
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mitsutoshi Kimura
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shogo Shimada
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masahiko Ando
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Minoru Ono
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Department of Frontier Cardiovascular Science, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; International University of Health and Welfare, Tokyo, Japan
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Tsuji M, Kakuda N, Bujo C, Saito A, Ishida J, Amiya E, Hatano M, Shimada A, Imai H, Kimura M, Ando M, Kinoshita O, Yamauchi H, Komuro I, Ono M. Prophylactic negative pressure wound therapy is not effective for preventing driveline infection following left ventricular assist device implantation. Artif Organs 2023; 47:566-573. [PMID: 36300650 DOI: 10.1111/aor.14440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/10/2022] [Accepted: 10/15/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Driveline infection (DLI) following left ventricular assist device (LVAD) implantation remains an unresolved problem. Negative pressure wound therapy (NPWT) promotes wound healing by applying negative pressure on the surface of the wound. Recently, the prophylactic application of NPWT to closed surgical incisions has decreased surgical site infections in various postsurgical settings. Therefore, we evaluated the efficacy and safety of prophylactic NPWT for preventing DLI in patients with LVAD implantation. METHODS Prophylactic NPWT was provided to 50 patients who received continuous-flow LVADs as bridge-to-transplant therapy at our institution between May 2018 and October 2020 (NPWT group). The negative pressure dressing was applied immediately after surgery and retained on the driveline exit site for 7 days with a continuous application of -125 mm Hg negative pressure. The primary outcome was DLI within 1 year of LVAD implantation. We compared the rate of DLI incidence in the NPWT group with that in the historical control cohort (50 patients) treated with the standard dressing (SD) who received LVAD implantation between July 2015 and April 2018 (SD group). RESULTS No severe complications were associated with the NPWT. During the follow-up period, DLI was diagnosed in 16 participants (32%) in the NPWT group and 21 participants (42%) in the SD group. The rates of DLI incidence and freedom from DLI did not differ between groups (p = 0.30 and p = 0.63). CONCLUSIONS Prophylactic NPWT at the driveline exit site was safe following LVAD implantation. However, it did not significantly reduce the risk of DLI.
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Affiliation(s)
- Masaki Tsuji
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Nobutaka Kakuda
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Chie Bujo
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Tokyo, Japan
| | - Akihito Saito
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Junichi Ishida
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Eisuke Amiya
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Tokyo, Japan
| | - Masaru Hatano
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Advanced Medical Center for Heart Failure, The University of Tokyo, Tokyo, Japan
| | - Asako Shimada
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroko Imai
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mitsutoshi Kimura
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masahiko Ando
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Osamu Kinoshita
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Haruo Yamauchi
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Minoru Ono
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Kagamu H, Yamasaki S, Horimoto K, Kitano S, Yamaguchi O, Mouri A, Shiono A, Miura Y, Hashimoto K, Imai H, Kaira K, Kobayashi K. 1067P Discovery of a new CD4+ T cell cluster that correlates PD-1 blockade efficacy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1193] [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: 11/30/2022] Open
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4
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Tsuji M, Kakuda N, Bujo C, Ishida J, Amiya E, Hatano M, Shimada A, Imai H, Shimada S, Kinoshita O, Yamauchi H, Ono M, Komuro I. Sarcopenia and risk of infection in adult heart transplant recipients in Japan. ESC Heart Fail 2022; 9:1413-1423. [PMID: 35146960 PMCID: PMC8934925 DOI: 10.1002/ehf2.13835] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 01/02/2022] [Accepted: 01/23/2022] [Indexed: 12/24/2022] Open
Abstract
AIMS Heart transplantation (HT) is an effective therapeutic option for end-stage heart failure. Infection is a major cause of morbidity and mortality after HT. Sarcopenia, defined as the loss of muscle mass and strength, is a common comorbidity in HT candidates with end-stage heart failure. However, the effects of sarcopenia on the occurrence of post-HT infections are not well understood. Therefore, we explored the association between the skeletal muscle mass and post-transplant infections in adult HT recipients. METHODS AND RESULTS We retrospectively examined the records of 135 patients who underwent HT between August 2007 and November 2019 at our institution. Pre-transplant computed tomography was used to calculate the skeletal muscle index (SMI) at the level of the third lumbar vertebra. Muscle wasting was defined as the SMI of the lowest sex-based tertiles. The primary endpoint was infections within 6 months of HT. The study included 109 patients (80 men, mean age: 41.6 ± 12.0 years): 37 patients in the muscle wasting group and 72 patients in the non-muscle wasting group. The mean SMI values in the muscle wasting and non-muscle wasting groups were 29.9 ± 4.8 cm2 /m2 and 40.7 ± 6.7 cm2 /m2 , respectively. Prior to HT, 108 (99.1%) patients were on left ventricular assist device support, and during that support, the rate of late right heart failure was significantly higher in the muscle wasting group than non-muscle wasting group (P = 0.012). Sixteen infections occurred within 6 months of HT. The most common infection sites included the respiratory tract (n = 5) and the upper gastrointestinal tract (n = 5), followed by the urinary tract (n = 4). Overall, 10 patients experienced infections in the muscle wasting group (27.0%) and 6 in the non-muscle wasting group (8.3%) (P = 0.009). Two patients in the muscle wasting group required intensive care unit admission, compared to none in the non-muscle wasting group. Low skeletal muscle mass was associated with infections in the univariate and multivariate logistic regression models (hazard ratio: 3.68, 95% confidence interval: 1.19-11.3; P = 0.023). However, the duration of all-cause mortality within 3 years did not differ between the groups (P = 0.56). CONCLUSIONS Low skeletal muscle mass is a predictor of post-HT infections within 6 months of HT.
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Affiliation(s)
- Masaki Tsuji
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan.,Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan
| | - Nobutaka Kakuda
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan
| | - Chie Bujo
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan
| | - Junichi Ishida
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan
| | - Eisuke Amiya
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan.,Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan
| | - Masaru Hatano
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan.,Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan
| | - Asako Shimada
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroko Imai
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shogo Shimada
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Osamu Kinoshita
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Haruo Yamauchi
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Minoru Ono
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Tokyo, Bunkyo-ku, 113-8655, Japan
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Tsuji M, Amiya E, Bujo C, Hara T, Saito A, Minatsuki S, Maki H, Ishida J, Hosoya Y, Hatano M, Imai H, Nemoto M, Kagami Y, Endo M, Kimura M, Ando M, Shimada S, Kinoshita O, Ono M, Komuro I. Carbon Monoxide Diffusing Capacity Predicts Cardiac Readmission in Patients Undergoing Left Ventricular Assist Device Implantation in Japan. ASAIO J 2021; 67:1111-1118. [PMID: 33470633 DOI: 10.1097/mat.0000000000001363] [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: 10/22/2022] Open
Abstract
Carbon monoxide diffusion capacity (DLCO) is impaired in heart failure patients; however, its clinical impact has not been well investigated in the left ventricular assist device (LVAD) population. We explored the predictive value of preoperative DLCO in the survival and cardiac readmission rates after LVAD implantation. Seventy-six patients who received continuous-flow LVAD as bridge-to-transplant therapy from November 2007 to September 2018 and underwent pulmonary function test before LVAD implantation were included. The primary study endpoints were death and readmission for heart failure or arrhythmia (cardiac readmission). Patients were stratified into two groups according to the percent of predicted DLCO (%DLCO). Pulmonary vascular resistance (PVR) was equivocal between the groups preoperatively, whereas the low DLCO group (%DLCO < 80%) showed significantly high PVR postoperatively. The mortality rate was not different between the groups. The 2 year cardiac readmission rate was 33.5% in the low DLCO group and 8.7% in the high DLCO group (%DLCO ≥ 80%) (P = 0.028). The %DLCO was associated with cardiac readmission in univariate and multivariate analyses (hazard ratio: 4.32; 95% CI: 1.50-15.9; P = 0.005). Low %DLCO was associated with high PVR postoperatively and was a risk factor for cardiac readmission after LVAD implantation.
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Affiliation(s)
- Masaki Tsuji
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Eisuke Amiya
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Tokyo, Japan
| | - Chie Bujo
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toru Hara
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Akihito Saito
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shun Minatsuki
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hisataka Maki
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Junichi Ishida
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yumiko Hosoya
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Tokyo, Japan
| | - Masaru Hatano
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Tokyo, Japan
| | - Hiroko Imai
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mariko Nemoto
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yukie Kagami
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Miyoko Endo
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mitsutoshi Kimura
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masahiko Ando
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shogo Shimada
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Osamu Kinoshita
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Minoru Ono
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Issei Komuro
- From the Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Fujita Y, Iihara H, Shimokawa M, Sakai C, Ikemura S, Hirose C, Kotake M, Funaguchi N, Gomyo T, Imai H, Hakamata J, Kaito D, Minato K, Arai T, Kawazoe H, Suzuki A, Ohno Y, Okura H. 1673P Efficacy and safety of 5 mg olanzapine for the prevention of carboplatin-induced nausea and vomiting in patients with thoracic malignancies: A prospective multicenter phase II study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1645] [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: 11/16/2022] Open
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7
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Narita K, Amiya E, Hatano M, Ishida J, Maki H, Minatsuki S, Tsuji M, Saito A, Bujo C, Ishii S, Kakuda N, Shimbo M, Hosoya Y, Endo M, Kagami Y, Imai H, Itoda Y, Ando M, Shimada S, Kinoshita O, Ono M, Komuro I. Differences in the prognoses of patients referred to an advanced heart failure center from hospitals with different bed volumes. Sci Rep 2020; 10:21071. [PMID: 33273668 PMCID: PMC7713124 DOI: 10.1038/s41598-020-78162-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 07/22/2020] [Accepted: 11/17/2020] [Indexed: 11/11/2022] Open
Abstract
Few reports have discussed appropriate strategies for patient referrals to advanced heart failure (HF) centers with available left ventricular assist devices (LVADs). We examined the association between the characteristics and prognoses of referred patients with advanced HF and the bed volume of the referring hospitals. This retrospective analysis evaluated 186 patients with advanced HF referred to our center for consultation about the indication of LVAD between January 1, 2015, and August 31, 2018. We divided the patients into two groups according to the bed volume of their referring hospital (high bed volume hospitals (HBHs): ≥ 500 beds in the hospital; low bed volume hospitals (LBHs): < 500 beds). We compared the primary outcome measure, a composite of LVAD implantation and all-cause death, between the patients referred from HBHs and patients referred from LBHs. The 186 patients with advanced HF referred to our hospital, who were referred from 130 hospitals (87 from LBHs and 99 from HBHs), had a mean age of 43.0 ± 12.6 years and a median left ventricular ejection fraction of 22% [15–33%]. The median follow-up duration of the patients was 583 days (119–965 days), and the primary outcome occurred during follow-up in 42 patients (43%) in the HBH group and 20 patients (23%) in the LBH group. Patients referred from HBHs tended to require catecholamine infusion on transfer more often than those referred from LBLs (36.5% (HBH), 20.2% (LBL), P = 0.021). Kaplan–Meier analysis indicates that the occurrence of the primary outcome was significantly higher in the HBH patients than in the LBH patients (log-rank P = 0.0022). Multivariate Cox proportional hazards analysis revealed that catecholamine support on transfer and long disease duration were statistically significant predictors of the primary outcome. Patients from HBHs had a greater risk of the primary outcome. However, the multivariate analysis did not indicate an association between referral from an HBH and the primary outcome. In contrast, catecholamine support on transfer, long duration of disease, and low blood pressure were independent predictors of the primary outcome. Therefore, these should be considered when determining the timing of a referral to an advanced HF center, irrespective of the bed volume of the referring hospital.
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Affiliation(s)
- Koichi Narita
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Eisuke Amiya
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan. .,Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Masaru Hatano
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan.,Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Junichi Ishida
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Hisataka Maki
- Department of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma, Omiya-ku, Saitama City, Saitama, 330-8503, Japan
| | - Shun Minatsuki
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Masaki Tsuji
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Akihito Saito
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Chie Bujo
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Satoshi Ishii
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Nobutaka Kakuda
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Mai Shimbo
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yumiko Hosoya
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan.,Department of Therapeutic Strategy for Heart Failure, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Miyoko Endo
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yukie Kagami
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Hiroko Imai
- Department of Organ Transplantation, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yoshifumi Itoda
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Masahiko Ando
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Shogo Shimada
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Osamu Kinoshita
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Minoru Ono
- Department of Cardiac Surgery, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
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Okajima T, Imai H, Murase Y, Kano N, Ogawa Y, Kawaguchi K. Short coupling with high burden of atrial ectopy in twenty-four hour holter recording predicts recurrence of atrial arrhythmia after atrial fibrillation ablation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Atrial arrhythmia recurrence is experienced in up to 20% of patients after initially receiving a catheter ablation for atrial fibrillation (AF). Therefore, it is important to define predictors of atrial arrhythmia recurrence. Atrial ectopy (AE) with short coupling interval (S-AE) has been reported to be a trigger of AF. On the other hand, high burden of AE has been reported to be a useful predictor of atrial arrhythmia recurrences after AF ablation. Thus, the combination of the incidence of S-AE and AE burden during a 24-hour Holter recording could be a useful predictor of atrial arrhythmia recurrence after AF ablation.
Purpose
To investigate this hypothesis, we performed a retrospective case-controlled study.
Methods
We enrolled 180 patients who underwent their first catheter ablation procedure for AF and performed a 24-hour Holter recording between 90 to 365 days after their ablation procedure. Patients who performed an additional ablation procedure before the Holter recording were excluded. Finally, we analyzed 173 patients (age: 65±10 years, female: 28.3%, non-paroxysmal: 27.7%). The Holter recordings were analyzed by the same experienced technicians. We defined AE as a narrow QRS complex occurring >25% than prior R-R interval, and S-AE as AE occurring >55% earlier than expected. The relationship between the characteristics of AE during the Holter recording and atrial arrhythmia recurrences was investigated.
Results
The Holter recordings were performed at a median of 103 (IQR: 98–138) days after ablation. The median number of AE were 144 (IQR: 54–699) beats per day, and S-AE was recorded in 49 patients (28.3%). Forty-two patients (24.3%) had a recurrence of atrial arrhythmia during a median 488-day follow up period. Patients with S-AE had a recurrence of atrial arrhythmia more frequently than those without S-AE (44.9% vs 16.1%, p<0.001). We found the cut-off point of AE burden as 241 beats per day by the receiver operating characteristic curve with 74% sensitivity and 70% specificity to predict atrial arrhythmia recurrence. We divided the patients into four groups according to the presence or absence of S-AE and high AE burden. In the Kaplan-Meier analysis, patients with S-AE and high AE burden had the highest atrial arrhythmia recurrence rate (Log-rank test: p<0.001). In the Cox multivariate analysis, S-AE with high AE burden was an independent predictor of atrial arrhythmia recurrence (HR: 4.27, 95% CI: 2.32–7.85, p<0.001).
Conclusion
For AF patients who underwent their first catheter ablation, S-AE (>55% earlier than expected) with high AE burden (>241 beats per day) during the 24-hour Holter recording predicted recurrences of atrial arrhythmia. These results can help to develop follow-up strategies after AF ablation.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | - H Imai
- Komaki City Hospital, Komaki, Japan
| | - Y Murase
- Komaki City Hospital, Komaki, Japan
| | - N Kano
- Komaki City Hospital, Komaki, Japan
| | - Y Ogawa
- Komaki City Hospital, Komaki, Japan
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9
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Kita S, Fujita K, Imai H, Aoyagi M, Shimazaki K, Yonemitsu I, Omura S, Ono T. Postoperative stability of conventional bimaxillary surgery compared with maxillary impaction surgery with mandibular autorotation for patients with skeletal class II retrognathia. Br J Oral Maxillofac Surg 2020; 58:57-61. [DOI: 10.1016/j.bjoms.2019.10.309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 10/16/2019] [Indexed: 11/29/2022]
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10
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Imai H, Kasai T, Mori K, Kishi K, Kaburagi T, Yomota M, Sugano T, Hosomi Y, Yamada Y, Moriguchi S, Minato K, Gemma A. A phase I and extension study of S-1 and carboplatin for previously untreated patients aged 75 years or more with advanced non-small cell lung cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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11
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Imai H, Yoshimura K, Miyamoto Y, Sasa K, Sugano M, Chatani M, Takami M, Yamamoto M, Kamijo R. Roles of monocarboxylate transporter subtypes in promotion and suppression of osteoclast differentiation and survival on bone. Sci Rep 2019; 9:15608. [PMID: 31666601 PMCID: PMC6821745 DOI: 10.1038/s41598-019-52128-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 10/14/2019] [Indexed: 01/07/2023] Open
Abstract
Monocarboxylate transporters (MCTs) provide transmembrane transport of monocarboxylates such as lactate and pyruvate. The present results showed that α-cyano-4-hydroxycinnamic acid (CHC), an inhibitor of MCTs, promoted osteoclast differentiation from macrophages at lower concentrations (0.1–0.3 mM) and suppressed that at a higher concentration (1.0 mM). On the other hand, CHC reduced the number of mature osteoclasts on the surface of dentin in a concentration-dependent manner. Additionally, macrophages and osteoclasts were found to express the Mct1, Mct2, and Mct4 genes, with Mct1 and Mct4 expression higher in macrophages, and that of Mct2 higher in osteoclasts. Although Mct1 gene knockdown in macrophages enhanced osteoclast formation induced by RANKL, Mct2 gene knockdown suppressed that. Finally, Mct2 gene silencing in mature osteoclasts decreased their number and, thereby, bone resorption. These results suggest that MCT1 is a negative regulator and MCT2 a positive regulator of osteoclast differentiation, while MCT2 is required for bone resorption by osteoclasts.
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Affiliation(s)
- Hiroko Imai
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan.,Department of Periodontology, Showa University School of Dentistry, Tokyo, Japan
| | - Kentaro Yoshimura
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan.
| | - Yoichi Miyamoto
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
| | - Kiyohito Sasa
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
| | - Marika Sugano
- Department of Periodontology, Showa University School of Dentistry, Tokyo, Japan
| | - Masahiro Chatani
- Department of Pharmacology, Showa University School of Dentistry, Tokyo, Japan
| | - Masamichi Takami
- Department of Pharmacology, Showa University School of Dentistry, Tokyo, Japan
| | - Matsuo Yamamoto
- Department of Periodontology, Showa University School of Dentistry, Tokyo, Japan
| | - Ryutaro Kamijo
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
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12
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Tashiro H, Tanaka A, Ishii H, Motomura N, Arai K, Adachi T, Okajima T, Hitora Y, Hayashi M, Furusawa K, Imai H, Ogawa Y, Kawaguchi K, Murohara T. P4601Reduced exercise capacity and clinical outcomes following acute myocardial infarction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Reduced exercise capacity is known to be an important predictor of poor prognosis and disability in patients with cardiovascular diseases and chronic heart failure, and even members of the general population. However, data about exercise capacity assessed by cardiopulmonary exercise testing (CPX) in acute myocardial infarction (AMI) patients who underwent primary percutaneous coronary intervention (PCI) is scarce. The purpose of this study is to assess the associated factors and clinical influence of exercise capacity measured by CPX in AMI patients.
Methods
Among 594 consecutive AMI patients who underwent primary PCI, we examined 136 patients (85.3% men, 64.9±11.9 years) who underwent CPX during hospitalization for AMI. CPX was usually performed five days after the onset of AMI. Reduced exercise capacity was defined as peak oxygen consumption (peak VO2) ≤12. Clinical outcomes including all-cause death, myocardial infarction, and hospitalization due to heart failure were followed.
Results
Among 136 patients, reduced exercise capacity (peak VO2 ≤12) was seen in 38 patients (28%). Patients with reduced exercise capacity were older, more likely to have hypertension, and had lower renal function. In echocardiography, patients with reduced exercise capacity had higher E/e' and larger left atria. Median follow-up term was 12 months (interquartile range: 9–22). The occurrence of composite endpoints of all-cause death, myocardial infarction, and hospitalization due to heart failure was significantly higher in patients with peak VO2≤12 than those with peak VO2>12 (p<0.001). Multivariate logistic analysis showed that E/e' (Odds ratio, 1.19, 95%, confidence interval 1.09 to 1.31, p<0.001) was an independent predictor of reduced exercise capacity (peak VO2≤12).
Cumulative incidence of clinical events
Conclusion
Diastolic dysfunction is associated with reduced exercise capacity following successful primary PCI in AMI patients and may lead to poorer clinical outcomes.
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Affiliation(s)
- H Tashiro
- Nagoya University Hospital, Cardiology, Nagoya, Japan
| | - A Tanaka
- Nagoya University Hospital, Cardiology, Nagoya, Japan
| | - H Ishii
- Nagoya University Hospital, Cardiology, Nagoya, Japan
| | - N Motomura
- Komaki City Hospital, Cardiology, Komaki, Japan
| | - K Arai
- Komaki City Hospital, Cardiology, Komaki, Japan
| | - T Adachi
- Komaki City Hospital, Cardiology, Komaki, Japan
| | - T Okajima
- Komaki City Hospital, Cardiology, Komaki, Japan
| | - Y Hitora
- Nagoya University Hospital, Cardiology, Nagoya, Japan
| | - M Hayashi
- Komaki City Hospital, Cardiology, Komaki, Japan
| | - K Furusawa
- Nagoya University Hospital, Cardiology, Nagoya, Japan
| | - H Imai
- Komaki City Hospital, Cardiology, Komaki, Japan
| | - Y Ogawa
- Komaki City Hospital, Cardiology, Komaki, Japan
| | - K Kawaguchi
- Komaki City Hospital, Cardiology, Komaki, Japan
| | - T Murohara
- Nagoya University Hospital, Cardiology, Nagoya, Japan
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13
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Yamada Y, Imai H, Minemura H, Sugiyama T, Kaira K, Kanazawa K, Kasai T, Minato K, Kaburagi T. EP1.01-83 Efficacy and Safety of EGFR-TKI Rechallenge Treatment in Elderly Patients with Advanced NSCLC Harboring Sensitive EGFR Mutations. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Uesugi A, Mochida K, Harada H, Imai H. Ossifying fibroma arising from the zygomatic arch: A case report. J Stomatol Oral Maxillofac Surg 2019; 121:288-291. [PMID: 31476540 DOI: 10.1016/j.jormas.2019.08.004] [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] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 08/17/2019] [Accepted: 08/25/2019] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Ossifying fibroma (OF) is a rare type of tumor characterized by fibrous tissue proliferation with cementum- or bone-like hard tissue formation. Since its first report by Montgomery in 1927, several cases of OF have been reported; however, no cases of OF arising from the zygomatic arch have been reported. Herein, we report a case of OF arising from the zygomatic arch. CLINICAL CASE SUMMARY A 70-year-old female visited our department in February 2017 because of a gradually growing osseous protrusion in the right zygomatic region, which she was aware of since the previous 6 months. A 3.3cm×3.2-cm area of swelling was observed in the region. Computed tomography confirmed the presence of a granulated lesion on the surface of the right zygomatic arch. Accordingly, benign bone tumor was diagnosed, and tumor resection was subsequently performed. Histopathological analysis revealed irregularly arranged bone trabeculae, an increased number of fibroblasts, and collagen fibers between the bone trabeculae; accordingly, OF was diagnosed. No clinical or radiographic evidence of recurrence was observed during the 1.5-year follow-up period. DISCUSSION A granulated lesion was present on the surface of the right zygomatic arch, and the boundary between the lesion and surrounding bone was clear. Resection of the lesion from the zygomatic arch was relatively easy. Thus, OF was diagnosed. If OF is suspected, a risk of recurrence persists; therefore, shaving the area including the bones surrounding the lesion may be necessary. Although detailed causes of OF and osteoma remain unknown, past trauma has been indicated as a common etiology. However, compared with the frequency of fractures in the zygomatic arch, the frequency of OF and osteoma is rare; thus, the etiology of OF and osteoma remains to be fully elucidated.
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Affiliation(s)
- A Uesugi
- Oral and Maxillofacial Surgery, Department of Oral Restitution, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549 Japan; Division of Dentistry and Oral Surgery, Hitachi, Ltd. Hitachinaka General Hospital, 20-1, Ishikawa-cho, Hitachinaka-shi, Ibaraki-ken, 312-0057 Japan.
| | - K Mochida
- Oral and Maxillofacial Surgery, Department of Oral Restitution, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549 Japan; Division of Dentistry and Oral Surgery, Hitachi, Ltd. Hitachinaka General Hospital, 20-1, Ishikawa-cho, Hitachinaka-shi, Ibaraki-ken, 312-0057 Japan.
| | - H Harada
- Oral and Maxillofacial Surgery, Department of Oral Restitution, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549 Japan.
| | - H Imai
- Oral and Maxillofacial Surgery, Department of Oral Restitution, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549 Japan; Division of Dentistry and Oral Surgery, Hitachi, Ltd. Hitachinaka General Hospital, 20-1, Ishikawa-cho, Hitachinaka-shi, Ibaraki-ken, 312-0057 Japan.
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15
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Miyazaki K, Takeuchi T, Yamaguchi M, Asano N, Sawaki A, Imai H, Ono R, Nosaka T, Kobayashi K, Tanaka K, Katayama N. GENE MUTATIONS AND SITES OF INVOLVEMENT IN DUODENAL-TYPE FOLLICULAR LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.2_2631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- K. Miyazaki
- Department of Hematology and Oncology; Mie University Graduate School of Medicine; Tsu Japan
| | - T. Takeuchi
- Department of Hematology and Oncology; Mie University Graduate School of Medicine; Tsu Japan
| | - M. Yamaguchi
- Department of Hematology and Oncology; Mie University Graduate School of Medicine; Tsu Japan
| | - N. Asano
- Department of Molecular Diagnostics; Shinshu Medical Center; Suzaka Japan
| | - A. Sawaki
- Department of Hematology and Oncology; Mie University Graduate School of Medicine; Tsu Japan
| | - H. Imai
- Pathology Division; Mie University Hospital; Tsu Japan
| | - R. Ono
- Department of Microbiology and Molecular Genetics; Mie University Graduate School of Medicine; Tsu Japan
| | - T. Nosaka
- Department of Microbiology and Molecular Genetics; Mie University Graduate School of Medicine; Tsu Japan
| | - K. Kobayashi
- Gastroenterology; Matsusaka Chuo General Hospital; Matsusaka Japan
| | - K. Tanaka
- Department of Endoscopy; Mie University Hospital; Tsu Japan
| | - N. Katayama
- Department of Hematology and Oncology; Mie University Graduate School of Medicine; Tsu Japan
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16
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Noriyuki T, Imai H, Fumita S, Harada T, Gamoh M, Akashi Y, Sato H, Kizawa Y, Tokoro A. Opioid-induced constipation in patients with cancer pain in Japan (OIC-J study): Patients’ self-assessment of the symptoms and the impact. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy444.005] [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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17
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Imai H, Fumita S, Harada T, Noriyuki T, Gamoh M, Akashi Y, Sato H, Kizawa Y, Tokoro A. Opioid-induced constipation in patients with cancer pain in Japan: Prospective observational study using Rome IV OIC diagnostic criteria (OIC-J Study). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.028] [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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18
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Yamada Y, Imai H, Sugiyama T, Minemura H, Kaira K, Kanazawa K, Kasai T, Kaburagi T, Minato K. P3.01-111 Efficacy and Safety of Cytotoxic Drug Chemotherapy After First-Line EGFR-TKI in Elderly Patients with NSCLC Harboring Sensitive EGFR Mutations. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1672] [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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19
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Suzuki K, Imai H, Kaira K, Anzai M, Tsuda T, Ishizuka T, Kuwako T, Naruse I, Nemoto K, Uchino J, Morozumi N, Ishihara S, Minato K, Hisada T. P1.01-92 A Phase II Study of Afatinib Treatment for Elderly Patients with Previously Untreated Advanced NSCLC Harboring EGFR Mutations. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.648] [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: 10/28/2022]
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20
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Koda T, Takanari J, Imai H. Cholic acid induced-intestinal damage is suppressed by spice-derived extracts in mice. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.2007] [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: 10/28/2022]
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21
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Suzuki K, Wada H, Imai H, Iba T, Thachil J, Toh CH. A re-evaluation of the D-dimer cut-off value for making a diagnosis according to the ISTH overt-DIC diagnostic criteria: communication from the SSC of the ISTH. J Thromb Haemost 2018; 16:1442-1444. [PMID: 29846034 DOI: 10.1111/jth.14134] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Indexed: 11/30/2022]
Affiliation(s)
- K Suzuki
- Emergency Critical Care Center, Mie University School of Medicine, Tsu, Mie, Japan
| | - H Wada
- Department of Molecular and Laboratory Medicine, Mie University School of Medicine, Tsu, Mie, Japan
| | - H Imai
- Emergency Critical Care Center, Mie University School of Medicine, Tsu, Mie, Japan
| | - T Iba
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - J Thachil
- Department of Haematology, Manchester Royal Infirmary, Manchester, UK
| | - C-H Toh
- The Roald Dahl Haemostasis & Thrombosis Centre, Royal Liverpool University Hospital, Liverpool, UK
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22
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Furukawa TA, Maruo K, Noma H, Tanaka S, Imai H, Shinohara K, Ikeda K, Yamawaki S, Levine SZ, Goldberg Y, Leucht S, Cipriani A. Initial severity of major depression and efficacy of new generation antidepressants: individual participant data meta-analysis. Acta Psychiatr Scand 2018; 137:450-458. [PMID: 29611870 DOI: 10.1111/acps.12886] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [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] [Accepted: 03/12/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The role of baseline severity as effect modifier in various psychiatric disorders is a topic of controversy and of clinical import. This study aims to examine whether baseline severity modifies the efficacy of various antidepressants for major depression through individual participant data (IPD) meta-analysis. METHOD We identified all placebo-controlled, double-blind randomised trials of new generation antidepressants in the acute phase treatment of major depression conducted in Japan and requested their IPD through the public-private partnerships (PPPs) between the relevant academic societies and the pharmaceutical companies. The effect modification by baseline depression severity was examined through six increasingly complex competing mixed-effects models for repeated measures. RESULTS We identified eleven eligible trials and obtained IPD from six, which compared duloxetine, escitalopram, mirtazapine, paroxetine or bupropion against placebo (total n = 2464). The best-fitting model revealed that the interaction between baseline severity and treatment was not statistically significant (coefficient = -0.04, 95% confidence interval: -0.16 to 0.08, P = 0.49). Several sensitivity analyses confirmed the robustness of the findings. CONCLUSION We may expect as much benefit from antidepressant treatments for mild, moderate or severe major depression. Clinical practice guidelines will need to take these findings into consideration.
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Affiliation(s)
- T A Furukawa
- Departments of Health Promotion and Human Behavior and of Clinical Epidemiology, Kyoto University Graduate School of Medicine / School of Public Health, Kyoto, Japan
| | - K Maruo
- Department of Biostatistics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - H Noma
- Department of Data Science, The Institute of Statistical Mathematics, Tokyo, Japan
| | - S Tanaka
- Department of Clinical Biostatistics, Kyoto University Graduate School of Medicine / School of Public Health, Kyoto, Japan
| | - H Imai
- Departments of Health Promotion and Human Behavior and of Clinical Epidemiology, Kyoto University Graduate School of Medicine / School of Public Health, Kyoto, Japan
| | - K Shinohara
- Departments of Health Promotion and Human Behavior and of Clinical Epidemiology, Kyoto University Graduate School of Medicine / School of Public Health, Kyoto, Japan.,Department of Psychiatry, University of Oxford, Oxford, UK
| | - K Ikeda
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - S Yamawaki
- Academic-Industrial Cooperation Office, Hiroshima University, Hiroshima, Japan
| | - S Z Levine
- Department of Community Mental Health, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel
| | - Y Goldberg
- Department of Statistics, Faculty of Social Sciences, University of Haifa, Haifa, Israel
| | - S Leucht
- Department of Psychiatry and Psychotherapy, Technische Universität München, Munich, Germany
| | - A Cipriani
- Department of Psychiatry, University of Oxford, Oxford, UK
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23
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Imai H, Kamei H, Onishi Y, Ishizu Y, Ishigami M, Goto H, Ogura Y. Diagnostic Usefulness of APRI and FIB-4 for the Prediction of Liver Fibrosis After Liver Transplantation in Patients Infected with Hepatitis C Virus. Transplant Proc 2018; 50:1431-1436. [PMID: 29705278 DOI: 10.1016/j.transproceed.2018.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 03/01/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Aspartate transaminase-to-platelet ratio index (APRI) and fibrosis-4 (FIB-4) are well known as representative indirect serum biomarkers related to liver fibrosis. The usefulness of these markers for the diagnosis of liver fibrosis after liver transplantation (LT) in hepatitis C virus (HCV)-infected patients and the influence of splenectomy were investigated. METHODS From June 2003 to May 2014, 31 HCV-infected patients who underwent LT and postoperative follow-up liver biopsies were included in this study. The association between liver fibrosis and serum biomarkers and the influence of splenectomy on APRI and FIB-4 were also investigated. RESULTS A total of 195 biopsy specimens were collected, and liver fibrosis was identified as: F0, 59.7%; F1, 34.1%; and F2, 6.3%. Both APRI and FIB-4 were significantly higher in patients who showed F1 and F2 in liver biopsy specimen than F0 (P values, .009 and .022, respectively); sensitivity and specificity of APRI were, respectively, 63.4% and 66.7%, and those of FIB-4 were 57.7% and 69.6%. In 11 patients (35.5%) who underwent splenectomy at the time of LT, the cutoff values for APRI and FIB-4 were 0.61 and 1.41, which were significantly lower than the corresponding values (1.00 and 3.64) of patients without splenectomy. CONCLUSIONS APRI and FIB-4 could effectively estimate liver fibrosis after LT for HCV-related liver disease. For LT patients with splenectomy, APRI and FIB-4 were also useful to estimate liver fibrosis, but the standard values should be adjusted lower than those for patients without splenectomy.
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Affiliation(s)
- H Imai
- Department of Transplantation Surgery, Nagoya University School of Medicine, Nagoya, Japan
| | - H Kamei
- Department of Transplantation Surgery, Nagoya University School of Medicine, Nagoya, Japan
| | - Y Onishi
- Department of Transplantation Surgery, Nagoya University School of Medicine, Nagoya, Japan
| | - Y Ishizu
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - M Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - H Goto
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - Y Ogura
- Department of Transplantation Surgery, Nagoya University School of Medicine, Nagoya, Japan.
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24
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Suyatno, Kitamura Y, Minami N, Yamada M, Imai H. 192 Culture Conditions Supporting Long-Term Expansion of Bovine Spermatogonial Stem Cells Isolated from Adult and Immature Testes. Reprod Fertil Dev 2018. [DOI: 10.1071/rdv30n1ab192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Spermatogonial stem cells (SSC) self-renew and differentiate into spermatocytes to produce haploid sperm. Because SSC are a small population of adult stem cells in the testis, numerous studies have been reported to derive cell lines from cultured SSC. It has been reported that neonatal and adult mouse SSC can be cultured in vitro over the long term. Male germline stem (GS) cells, embryonic stem (ES)-like cells, and multipotent male germline stem (MGS) cells were derivated from mouse SSC. However, in domestic species including cattle, information about in vitro culture of SSC is mainly available in the neonatal and immature animal. To our knowledge, there are no reports about long-term culture of SSC isolated from adult bovine testis. In this report, we established culture conditions to maintain SSC isolated from adult and immature testes. The SSC were isolated by 3-step enzymatic digestion and enriched by Percoll gradient centrifugation. For adult testicular cell suspensions, SSC were further enriched by differential plating on precoated gelatin dish. After Percoll gradient centrifugation, we found differential expression of SSC markers (GFRα-1 and UCHL-1) in the isolated cells from immature and adult testis. The RT-PCR results also confirmed the expression of differentiated spermatogonia markers (SYCP3 and STRA-8) in adult testicular cell suspensions. It suggests that isolated testicular germ cell population from adult testis are more heterogeneous than those of immature testis. The SSC isolated from adult testes were cultured in low-serum media containing 6-bromoindirubin-3′-oxime (BIO), an inhibitor of glycogen synthase kinase-3α (GSK3), and subsequently the cultures were maintained in the medium containing glial cell line-derived neurotropic factor (GDNF). The cell lines have characteristics resembling mouse GS cell lines as confirmed by their grape-like shape morphology, the expression of SSC markers (UCHL-1, DBA, and GFRa-1), and pluripotent stem cell markers (POU5F1, SOX2, KLF4). The SSC from immature testes were proliferated for more than 3 months in serum-free culture conditions in the presence of GDNF and bovine leukemia inhibitory factor (LIF). The cell lines had ES-like cell morphology, expressed pluripotent stem cell markers and SSC-specific markers. They differentiated in vitro into 3 germ layers confirmed by the expression of ectoderm (NESTIN), mesoderm (BMP4), and endoderm (GATA-6) markers by RT-PCR and neuron like-cells confirmed by the expression of glial fibrillary acidic protein (GFAP) by immunofluorescence analysis. In conclusion, these findings indicate an efficient method to enrich SSC without cell sorting method and different long-term culture systems subsequently established to maintain SSC from adult and immature testes. Furthermore, our data would be useful for further studies that aim to preserve endangered species and improve livestock production through genome editing technology.
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Minemura H, Imai H, Sugiyama T, Tamura T, Kaira K, Kanazawa K, Yokouchi H, Kasai T, Kaburagi T, Minato K. P1.15-002 A Retrospective Study of Amrubicin Monotherapy for the Treatment of Relapsed Small Cell Lung Cancer in Elderly Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1038] [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: 11/28/2022]
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Sugiyama T, Imai H, Tamura T, Minemura H, Kaira K, Kanazawa K, Yokouchi H, Kasai T, Kaburagi T, Minato K. A retrospective study of amrubicin monotherapy for the treatment of relapsed small cell lung cancer in elderly patients. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx674.001] [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: 11/12/2022] Open
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Sugano K, Yoshino H, Nakazato T, Imai H. Half of the patients with amyotrophic lateral sclerosis after ventilation had apparent frontotemporal lobar atrophy: A Quantitative survey of 92 patients by CT imaging. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2007] [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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Wada H, Matsumoto T, Aota T, Imai H, Suzuki K, Katayama N. Efficacy and safety of anticoagulant therapy in three specific populations with sepsis: a meta-analysis of randomized controlled trials: comment. J Thromb Haemost 2016; 14:2308-2309. [PMID: 27331770 DOI: 10.1111/jth.13394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 06/19/2016] [Indexed: 11/27/2022]
Affiliation(s)
- H Wada
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - T Matsumoto
- Department of Hematology and Oncology, Mie University School of Medicine, Mie, Japan
| | - T Aota
- Blood Transfusion Service, Mie University Hospital, Tsu, Japan
| | - H Imai
- Emergency Critical Care Center, Mie University Hospital, Tsu, Japan
| | - K Suzuki
- Emergency Critical Care Center, Mie University Hospital, Tsu, Japan
| | - N Katayama
- Blood Transfusion Service, Mie University Hospital, Tsu, Japan
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Wada H, Matsumoto T, Fujimoto N, Imai H, Suzuki K, Katayama N. Shock, acute disseminated intravascular coagulation, and microvascular thrombosis: is 'shock liver' the unrecognized provocateur of ischemic limb necrosis: comment. J Thromb Haemost 2016; 14:2315-2316. [PMID: 27541323 DOI: 10.1111/jth.13474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Indexed: 11/29/2022]
Affiliation(s)
- H Wada
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - T Matsumoto
- Blood Transfusion, Mie University Hospital, Tsu, Japan
- Emergency Critical Care Center, Mie University Hospital, Tsu, Japan
| | - N Fujimoto
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Imai
- Emergency Critical Care Center, Mie University Hospital, Tsu, Japan
| | - K Suzuki
- Emergency Critical Care Center, Mie University Hospital, Tsu, Japan
| | - N Katayama
- Department of Hematology and Oncology, Mie University School of Medicine, Mie, Japan
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Nitta T, Imai H, Ogasawara Y, Nakano M. Mitogenicity of bacterial lipopolysaccharide on the T lymphocyte population bearing the γδT cell receptor. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/096805199400100204] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In vitro [3H]-thymidine (TdR) uptake in T lymphocyte populations, taken and purified from proteose peptone-induced peritoneal exudate cells (PEC), spleens and thymuses of C3H/HeN mice, were investigated by stimulation with bacterial lipopolysaccharide (LPS). The T cells taken from PEC (PEC-T) were purified by passing them through a nylon fiber column (Nfc) and a G-10 column. They were then treated with anti-lak, anti-Mac-1 and anti-LR-1 antibodies plus complement (C). The PEC-T cells showed an increased [ 3H]-TdR uptake in response to LPS, while the splenic T cells and thymic T cells that had been purified and treated by a similar procedure with minor modifications, poorly responded to LPS and did not respond to LPS, respectively. The response of PEC-T to LPS was abolished when the PEC-T were pretreated with anti-Thy-1 or anti-γδ antibody plus C, but not αβ, T cell receptor (TCR) antibody plus C. The thymic T cells did not show any increase of [ H]-TdR uptake in response to LPS or anti-αβ or γδTCR antibody. However, obvious uptake did occur when the cells were stimulated with LPS and anti-γδTCR antibody, but not with anti-αβTCR antibody. IL-1 did not substitute for LPS in the response. These results suggest that LPS has a mitogenic ability to respond to a T cell population bearing γδTCR in PEC, and to a γδTCR-stimulated cell population in thymic cells. The difference in response to LPS between PEC-γδT and thymic γδT cells was discussed.
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Affiliation(s)
- T. Nitta
- Department of Bacteriology, Ohu University School of Dentistry, Koriyama, Japan, Department of Microbiology, Jichi Medical School, Tochigi-ken, Japan
| | - H. Imai
- Department of Bacteriology, Ohu University School of Dentistry, Koriyama, Japan, Department of Microbiology, Jichi Medical School, Tochigi-ken, Japan
| | - Y. Ogasawara
- Department of Bacteriology, Ohu University School of Dentistry, Koriyama, Japan, Department of Microbiology, Jichi Medical School, Tochigi-ken, Japan
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Imai H, Hiruma H, Kumazaki T, Uyesaka N. Effect of Low-Osmolality Contrast Media on Red Cell Filterability. Acta Radiol 2016. [DOI: 10.1177/028418519303400303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The effects of low-osmolality contrast media (CM) on red blood cell (RBC) filterability were investigated using a recently developed nickel mesh filtration method. The conventional hypertonic CM iothalamate, low-osmolality iohexol, and the recently synthesized iomeprol were studied. Among them, the osmolality of iomeprol was the lowest. The impact of CM osmolality, viscosity, and iodine content on the RBC filterability was analyzed. Under equal iodine content or viscosity condition, the filterability order of RBCs suspended in CM was iomeprol > iohexol ≫ iothalamate, because of the osmolality of CM. Iomeprol caused small echinocytic changes but these had a negligible influence on RBC filterability. In conclusion, the osmotic effect of CM on RBC filterability is more predominant than the other CM effects, and iomeprol is the preferred CM for RBC filterability.
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Suzuki T, Hongo T, Matsuo N, Imai H, Nakazawa M, Abe T, Yamamura Y, Yoshida M, Aoyama H. An Acute Mercuric Mercury Poisoning: Chemical Speciation of Hair Mercury Shows a Peak of Inorganic Mercury Value. Hum Exp Toxicol 2016; 11:53-7. [PMID: 1354462 DOI: 10.1177/096032719201100109] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 11/15/2022]
Abstract
A woman ingested a dose of sublimate (approximately 0.9 g) in an attempted suicide. She survived and recovered in response to a combination of therapies including chelate (BAL) therapy, plasma exchange, haemodialysis and peritoneal dialysis. Serum inorganic mercury concentration, urinary inorganic mercury excretion and hair inorganic and organic mercury and selenium concentrations, along the length from the scalp to the distal part, were measured. Longitudinal analysis of hair, revealed a peak in inorganic mercury corresponding to the time of mercury ingestion. Organic mercury and selenium in the hair had different patterns of longitudinal variation from that of inorganic mercury. The biological half-life (23.5 d) of serum inorganic mercury levels was in good agreement with values previously reported in the literature.
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Affiliation(s)
- T Suzuki
- Department of Human Ecology, Faculty of Medicine, University of Tokyo, Japan
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Luo J, Imai H, Ohyama T, Hashimoto S, Hasunuma T, Inoue Y, Kotegawa T, Ohashi K, Uemura N. The Pharmacokinetic Exposure to Fexofenadine is Volume-Dependently Reduced in Healthy Subjects Following Oral Administration With Apple Juice. Clin Transl Sci 2016; 9:201-6. [PMID: 27197662 PMCID: PMC5351340 DOI: 10.1111/cts.12400] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 01/27/2016] [Accepted: 04/16/2016] [Indexed: 01/16/2023] Open
Abstract
Pharmacokinetic exposures to fexofenadine (FEX) are reduced by apple juice (AJ); however, the relationship between the AJ volume and the degree of AJ‐FEX interaction has not been understood. In this crossover study, 10 healthy subjects received single doses of FEX 60 mg with different volumes (150, 300, and 600 mL) of AJ or water (control). To identify an AJ volume lacking clinically meaningful interaction, we tested a hypothesis that the 90% confidence interval (CI) for geometric mean ratio (GMR) of FEX AUCAJ/AUCwater is contained within a biocomparability bound of 0.5–2.0, with at least one tested volume of AJ. GMR (90% CI) of AUCAJ 150mL/AUCwater, AUCAJ 300mL/AUCwater, and AUCAJ 600mL/AUCwater were 0.903 (0.752–1.085), 0.593 (0.494–0.712), and 0.385 (0.321–0.462), respectively. While a moderate to large AJ‐FEX interaction is caused by a larger volumes of AJ (e.g., 300 to 600 mL), the effect of a small volume (e.g., 150 mL) appears to be not meaningful.
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Affiliation(s)
- J Luo
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan
| | - H Imai
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - T Ohyama
- Department of Mathematics and Statistics, Faculty of Medicine, Oita University, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - S Hashimoto
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - T Hasunuma
- Clinical Pharmacology Center, Oita University Hospital, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - Y Inoue
- General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - T Kotegawa
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan
| | - K Ohashi
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan
| | - N Uemura
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan.,Clinical Pharmacology Center, Oita University Hospital, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
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Miyawaki S, Imai H, Hayasaka T, Masaki N, Ono H, Ochi T, Ito A, Nakatomi H, Setou M, Saito N. Imaging mass spectrometry detects dynamic changes of phosphatidylcholine in rat hippocampal CA1 after transient global ischemia. Neuroscience 2016; 322:66-77. [DOI: 10.1016/j.neuroscience.2016.02.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 02/02/2016] [Accepted: 02/02/2016] [Indexed: 11/16/2022]
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Kimura H, Onishi Y, Sunada S, Kishi S, Suzuki N, Tsuboi C, Yamaguchi N, Imai H, Kamei H, Fujisiro H, Okada T, Ishigami M, Ogura Y, Kiuchi T, Ozaki N. Postoperative Psychiatric Complications in Living Liver Donors. Transplant Proc 2016; 47:1860-5. [PMID: 26293064 DOI: 10.1016/j.transproceed.2015.06.021] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/02/2015] [Accepted: 06/16/2015] [Indexed: 01/16/2023]
Abstract
BACKGROUND To understand the impact of psychologic variables on donor quality of life, we studied long-term data on postoperative psychiatric complications in living liver donors. This study is a focused psychological investigation of diagnoses, treatments, and long-term clinical courses of living liver donors with psychiatric complications. METHODS Of the 142 donors who underwent live-donor liver transplantation at Nagoya University Hospital between April 2004 and July 2014, we investigated those without a history of mental illness who had developed such illness after transplantation and required psychiatric treatment. RESULTS A total of 6 (4.2%) donors developed the following psychiatric complications after transplantation: major depressive disorder (n = 2), panic disorder (n = 2), conversion disorder (n = 1), and substance use disorder (n = 1). Concerning psychiatric treatment, all donors received antianxiety drugs, 3 took antidepressants, and supportive psychiatric therapy was concomitantly provided to all subjects. The average treatment period was 53.3 months. Regarding subject outcomes, 3 donors achieved remission, and the other 3 continued treatment. All subjects showed improvement in Global Assessment of Functioning Scale. CONCLUSION It is important to accurately diagnose postoperative psychiatric complications and provide long-term treatment in close coordination with transplant surgeons.
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Affiliation(s)
- H Kimura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Y Onishi
- Transplantation Surgery, Nagoya University Hospital, Nagoya, Japan
| | - S Sunada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kishi
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Suzuki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - C Tsuboi
- Transplantation Surgery, Nagoya University Hospital, Nagoya, Japan
| | - N Yamaguchi
- Transplantation Surgery, Nagoya University Hospital, Nagoya, Japan
| | - H Imai
- Transplantation Surgery, Nagoya University Hospital, Nagoya, Japan
| | - H Kamei
- Transplantation Surgery, Nagoya University Hospital, Nagoya, Japan
| | - H Fujisiro
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Okada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Ishigami
- Department of Gastroenterology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Ogura
- Transplantation Surgery, Nagoya University Hospital, Nagoya, Japan
| | - T Kiuchi
- Sing-Kobe Liver Transplant Centre, Mount Elizabeth Novena Hospital, Singapore
| | - N Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Kanayama K, Imai H, Yoneda M, Hayashi A, Hirokawa YS, Shiraishi T. Cytological findings of an ectopic pancreas of the stomach obtained at endoscopic ultrasound-guided fine needle aspiration, differential diagnosis from acinar cell carcinoma: a case report. Cytopathology 2016; 27:379-81. [PMID: 26786071 DOI: 10.1111/cyt.12302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2015] [Indexed: 12/12/2022]
Affiliation(s)
- K Kanayama
- Department of Oncologic Pathology, Mie University Graduate School of Medicine, Tsu, Mie, Japan.
| | - H Imai
- Department of Oncologic Pathology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - M Yoneda
- Department of Clinical Nutrition, Suzuka University of Medical Science, Suzuka, Mie, Japan
| | - A Hayashi
- Department of Oncologic Pathology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Y S Hirokawa
- Department of Oncologic Pathology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - T Shiraishi
- Department of Oncologic Pathology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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Iwasaki M, Yoshihara A, Kimura Y, Sato M, Wada T, Sakamoto R, Ishimoto Y, Fukutomi E, Chen W, Imai H, Fujisawa M, Okumiya K, Taylor GW, Ansai T, Miyazaki H, Matsubayashi K. Longitudinal relationship of severe periodontitis with cognitive decline in older Japanese. J Periodontal Res 2016; 51:681-8. [DOI: 10.1111/jre.12348] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2015] [Indexed: 01/30/2023]
Affiliation(s)
- M. Iwasaki
- Division of Preventive Dentistry; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
- Division of Community Oral Health Development; Kyushu Dental University; Kitakyushu Japan
| | - A. Yoshihara
- Division of Oral Science for Health Promotion; Department of Oral Health and Welfare; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - Y. Kimura
- Center for Southeast Asian Studies; Kyoto University; Kyoto Japan
| | - M. Sato
- Division of Preventive Dentistry; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - T. Wada
- Center for Southeast Asian Studies; Kyoto University; Kyoto Japan
| | - R. Sakamoto
- Center for Southeast Asian Studies; Kyoto University; Kyoto Japan
| | - Y. Ishimoto
- Center for Southeast Asian Studies; Kyoto University; Kyoto Japan
| | - E. Fukutomi
- Department of Field Medicine; School of Public Health; Kyoto University; Kyoto Japan
| | - W. Chen
- Department of Field Medicine; School of Public Health; Kyoto University; Kyoto Japan
| | - H. Imai
- Department of Field Medicine; School of Public Health; Kyoto University; Kyoto Japan
| | - M. Fujisawa
- Center for Southeast Asian Studies; Kyoto University; Kyoto Japan
| | - K. Okumiya
- Center for Southeast Asian Studies; Kyoto University; Kyoto Japan
| | - G. W. Taylor
- Department of Preventive and Restorative Dental Sciences; University of California San Francisco; San Francisco CA USA
| | - T. Ansai
- Division of Community Oral Health Development; Kyushu Dental University; Kitakyushu Japan
| | - H. Miyazaki
- Division of Preventive Dentistry; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - K. Matsubayashi
- Center for Southeast Asian Studies; Kyoto University; Kyoto Japan
- Department of Field Medicine; School of Public Health; Kyoto University; Kyoto Japan
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Kasuda S, Kudo R, Yuui K, Imai H, Nakata M, Hatake K. An autopsy case of complete adipocere formation. Leg Med (Tokyo) 2016; 18:49-51. [DOI: 10.1016/j.legalmed.2015.12.003] [Citation(s) in RCA: 3] [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] [Received: 06/25/2015] [Revised: 10/20/2015] [Accepted: 12/02/2015] [Indexed: 10/22/2022]
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Kasuda S, Kudo R, Yuui K, Imai H, Nakata M, Hatake K. [Two autopsy cases in which previous surgery facilitated the positive identification of decomposed bodies]. Soud Lek 2016; 61:42-43. [PMID: 27869442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The positive identification of decomposed corpses is often difficult. We describe two autopsy cases in which medical materials, which had been implanted during previous surgical treatments, facilitated positive identification. The discovery of decomposed corpses is increasingly common in Japan, due to the increasing number of lonely deaths. Implanted medical materials and devices may be a useful tool for personal identification in the near future.
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Shinohara K, Tajika A, Imai H, Takeshima N, Hayasaka Y, Furukawa TA. Protocol registration and selective outcome reporting in recent psychiatry trials: new antidepressants and cognitive behavioural therapies. Acta Psychiatr Scand 2015; 132:489-98. [PMID: 26367129 DOI: 10.1111/acps.12502] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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] [Accepted: 08/18/2015] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The selective reporting of favorable outcomes has a serious influence on our evidence base. However, this problem has not yet been systematically investigated in the field of psychiatry. Our study aimed to evaluate registration and outcome reporting in randomized controlled trials (RCTs) of standard treatments for depression: cognitive behavioural therapy (CBT) or new-generation antidepressants (ADs). METHOD We searched for reports of RCTs examining the efficacy of CBT or AD for depression that were published between 2011 and 2013. We then compared their primary outcomes in the trial registries and those in publications. RESULTS We identified 170 trials. Among them, 92 trials (54.1%) were registered, 43 trials (25.3%) were properly registered, and only 32 (18.8%) trials were both properly registered and reported (the primary outcomes as recorded in the registries were reported in publications). There was no statistically significant difference in the proportions of properly registered and reported trials for CBT or AD (relative risk: 0.51, 95% CI: 0.25-1.03). High impact factor journals, commercial funding, publication of protocol, and relatively large sample size were significant predictors of proper registration and reporting. CONCLUSION The prevalence of proper registration and reporting is still very low in depression trials.
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Affiliation(s)
- K Shinohara
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
| | - A Tajika
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
| | - H Imai
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
| | - N Takeshima
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
| | - Y Hayasaka
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
| | - T A Furukawa
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
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Hayasaka Y, Furukawa TA, Sozu T, Imai H, Kawakami N, Horikoshi M. Enthusiasm for homework and improvement of psychological distress in subthreshold depression during behavior therapy: secondary analysis of data from a randomized controlled trial. BMC Psychiatry 2015; 15:302. [PMID: 26602093 PMCID: PMC4658758 DOI: 10.1186/s12888-015-0687-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 11/19/2015] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Cognitive behavioral therapy (CBT) usually involves homework, the completion of which is a known predictor of a positive outcome. The aim of the present study was to examine the session-by-session relationships between enthusiasm to complete the homework and the improvement of psychological distress in depressed people through the course of therapy. METHODS Working people with subthreshold depression were recruited to participate in the telephone CBT (tCBT) program with demonstrated effectiveness. Their enthusiasm for homework was enhanced with motivational interviewing techniques and was measured by asking two questions: "How strongly do you feel you want to do this homework?" and "How confident do you feel you can actually accomplish this homework?" at the end of each session. The outcome was the K6 score, which was administered at the start of each session. The K6 is an index of psychological distress including depression and anxiety. We used structural equation modeling (SEM) to elucidate the relationships between enthusiasm and the K6 scores from session to session. RESULTS The best fitting model suggested that, throughout the course of behavior therapy (BT), enthusiasm to complete the homework was negatively correlated with the K6 scores for the subsequent session, while the K6 score measured at the beginning of the session did not influence the enthusiasm to complete the homeworks assigned for that session. CONCLUSIONS Empirical data now support the practitioners of BT when they try to enhance their patient's enthusiasm for homework regardless of the participant's distress, which then would lead to a reduction in distress in the subsequent week. TRIAL REGISTRATION NUMBER ClinicalTrials.gov NCT00885014 . April 20, 2009.
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Affiliation(s)
- Y. Hayasaka
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine / School of Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501 Japan
| | - T. A. Furukawa
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine / School of Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501 Japan
| | - T. Sozu
- Department of Management Science, Faculty of Engineering, Tokyo University of Science, 1-3 Kagurazaka, Shinjyuku-ku, Tokyo 162-8601 Japan
| | - H. Imai
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine / School of Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501 Japan
| | - N. Kawakami
- Department of Mental Health, University of Tokyo Graduate School of Medicine, Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | - M. Horikoshi
- National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8551 Japan
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Imai H, Kamei H, Onishi Y, Yamada K, Ishizu Y, Ishigami M, Goto H, Ogura Y. Successful Living-Donor Liver Transplantation for Cholestatic Liver Failure Induced by Allopurinol: Case Report. Transplant Proc 2015; 47:2778-81. [DOI: 10.1016/j.transproceed.2015.09.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 09/24/2015] [Indexed: 10/22/2022]
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Kizaki K, Terada T, Arikawa H, Tajima T, Imai H, Takahashi T, Era S. Effect of reduced coenzyme Q10 (ubiquinol) supplementation on blood pressure and muscle damage during kendo training camp: a double-blind, randomized controlled study. J Sports Med Phys Fitness 2015; 55:797-804. [PMID: 25369277] [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: 06/04/2023]
Abstract
AIM This randomized controlled study was designed to examine the effects of reduced coenzyme Q10 (ubiquinol; CoQ10) supplementation on blood pressure (BP) and exercise-induced muscle damage in kendo athletes during a 4-day kendo training camp. METHODS In a double-blinded manner, 32 young kendo athletes were randomly assigned to supplement with either placebo or CoQ10 (600 mg) daily for 11 days from 1 week prior to camp to end of camp. BP was measured every morning after waking up during the training camp. Blood samples were taken at 3 time points; 1 week and 1 day prior and upon completion of training camp at 17:30. Statistical analysis was performed by repeated-measures analysis of variance followed by Bonferroni/Dunn post-hoc tests. RESULTS Before the training camp started, there were no differences in diastolic BP between these groups. However, after kendo training started, diastolic BP in the CoQ10 group was significantly lower than that in the placebo group (P<0.05). Plasma creatine kinase (CK) and myoglobin (Mb) concentrations were significantly increased in both groups during the camp (P<0.05), whereas there were no significant differences in CK and Mb between CoQ10 and placebo groups (CK: P=0.82, Mb: P=0.69). CONCLUSION Oral supplementation with reduced form of CoQ10 (ubiquinol; Kaneka QHTM) showed a significant hypotensive effect in young male kendo athletes during a 4-day kendo training camp, although it did not significantly ameliorate kendo exercise-induced muscle damage.
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Affiliation(s)
- K Kizaki
- Department of Physiology and Biophysics, Gifu University Graduate School of Medicine, Gifu, Japan -
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Iwasaki M, Kimura Y, Yoshihara A, Ogawa H, Yamaga T, Takiguchi T, Wada T, Sakamoto R, Ishimoto Y, Fukutomi E, Chen W, Imai H, Fujisawa M, Okumiya K, Manz MC, Miyazaki H, Matsubayashi K. Association between dental status and food diversity among older Japanese. Community Dent Health 2015; 32:104-110. [PMID: 26263604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the relationship of dental status to food diversity among older Japanese. DESIGN AND SETTING A community-based cross-sectional study conducted in the town of Tosa, Kochi Prefecture, Japan. METHODS The study participants were 252 Japanese (84 men and 168 women, average age 81.2 years) and dentate participants were classified into three groups: 1-9 teeth, 10-19 teeth and 20 or more teeth. Food diversity was assessed as a validated measure of dietary quality using the 11-item Food Diversity Score Kyoto (FDSK-11), which evaluates frequency of consumption of 11 main food groups. Multivariable analysis of the differences in FDSK-11 score ranging from 0 to 11, with a higher score indicating greater food diversity, among the three dental status groups was conducted using general linear models. All the performed analyses were stratified by gender. RESULTS There was no association between dental status and food diversity score in models for men. In contrast, women with ≤ 9 teeth and with 10-19 teeth had significantly lower FDSK-11 scores than women with ≥ 20 teeth after adjusting for confounders (p < 0.001 and p = 0.009, respectively). Additionally, there was a trend toward lower scores for FDSK-11 with fewer teeth (p = 0.001). CONCLUSION A less varied diet, as indicated by low FDSK-11 score, was observed in female participants with fewer teeth. Tooth loss was associated with poor diet quality among older Japanese women.
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Imai H. Early fitting of hearing aids and early education for the severely to profoundly hearing-impaired children. Adv Otorhinolaryngol 2015; 29:199-208. [PMID: 6837372 DOI: 10.1159/000407493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Wada H, Aota T, Matsumoto T, Suzuki K, Imai H, Katayama N. Antithrombin or thrombomodulin administration in severe pneumonia patients with sepsis and disseminated intravascular coagulation: comment on two papers. J Thromb Haemost 2015; 13:684-5. [PMID: 25611679 DOI: 10.1111/jth.12856] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Accepted: 01/15/2015] [Indexed: 11/27/2022]
Affiliation(s)
- H Wada
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
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Aota T, Matsumoto T, Suzuki K, Imai H, Katayama N, Wada H. Antithrombin and mortality in severe pneumonia patients with sepsis-associated disseminated intravascular coagulation: an observational nationwide study: comment. J Thromb Haemost 2015; 13:679-80. [PMID: 25528989 DOI: 10.1111/jth.12822] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Indexed: 08/31/2023]
Affiliation(s)
- T Aota
- Department of Hematology and Oncology, Mie University School of Medicine, Mie, Japan
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Arikawa H, Terada T, Takahashi T, Kizaki K, Imai H, Era S. Continuous Vocalization during Kendo Exercises Suppresses Expiration of CO2. Int J Sports Med 2015; 36:519-25. [PMID: 25760149 DOI: 10.1055/s-0034-1398679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
One distinctive trait of kendo, the Japanese martial art of fencing, is the execution of sustained, high-effort vocalizations during actions. The purpose of this study was to determine the effect of these vocalizations on respiratory functions. First, the intensity of 3 kendo exercises was quantified by measuring oxygen uptake (V̇O2) and comparing it with V̇O2max measured during treadmill tests of 8 university kendo athletes. Respiratory variables of these 8 athletes were then analyzed using a portable breath gas analyzer during the most intensive kendo exercise, kakari-keiko, with and without vocalization. Breathing frequency (fB) increased regardless of vocalization, but in trials with vocalization, fB and ventilation were significantly lower, and expiration time was significantly longer. Components of expired gases were also affected by vocalization. Although there was no significant difference in oxygen uptake, vocalization yielded a reduction in carbon dioxide output (V̇CO2) and an increase in fraction of end-tidal carbon dioxide (FetCO2). We thus conclude that these vocalizations greatly affect expiration breathing patterns in kendo. Moreover, repetition of kakari-keiko caused a reduction in V̇CO2 and an increase in FetCO2 and CO2 storage. We consider the possibility that the sustained high-effort vocalizations of kendo also increase cerebral blood flow.
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Affiliation(s)
- H Arikawa
- Department of Early Childhood Education, Chubu-gakuin College, Seki, Japan
| | - T Terada
- Department of Physiology and Biophysics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - T Takahashi
- Department of Physiology and Biophysics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - K Kizaki
- Department of Orthopedic Surgery, Kurobe City Hospital, Kurobe, Japan
| | - H Imai
- Department of Health and Physical Education, Faculty of Education, Gifu University, Gifu, Japan
| | - S Era
- Department of Physiology and Biophysics, Gifu University Graduate School of Medicine, Gifu, Japan
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Kiba W, Imai H, Kondoh K, Imazato S. Evaluation of the ion-releasing property of tailored Sr–Ca-containing inorganic cement. Dent Mater 2015. [DOI: 10.1016/j.dental.2015.08.077] [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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Fujita T, Yoshimoto T, Matsuda S, Kajiya M, Kittaka M, Imai H, Iwata T, Uchida Y, Shiba H, Kurihara H. Interleukin-8 induces DNA synthesis, migration and down-regulation of cleaved caspase-3 in cultured human gingival epithelial cells. J Periodontal Res 2014; 50:479-85. [PMID: 25244101 DOI: 10.1111/jre.12230] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2014] [Indexed: 02/02/2023]
Abstract
BACKGROUND AND OBJECTIVE Migration of the junctional epithelium occurs in association with the formation of a periodontal pocket. Although the migration of junctional epithelium is known to be related to the proliferation and migration of gingival junctional epithelial cells, the mechanism has not been clarified. In patients with periodontitis, the levels of interleukin-8 (IL-8) in both gingival tissue and gingival crevicular fluid are dramatically increased. IL-8 has broad bioactive functions. In this study, we examined the role of IL-8 in DNA synthesis, migration and protection against apoptosis in cultured human gingival epithelial cells (HGEC). MATERIAL AND METHODS DNA synthesis was estimated by measuring the incorporation of bromodeoxyuridine. The migration of gingival epithelial cells was assessed in a wound-healing assay. The expression of integrin beta-1 was analyzed using immunofluorescence confocal microscopy and western blotting. Cleaved caspase-3 was detected using western blotting and a Caspase-Glo assay kit. RESULTS IL-8 increased the synthesis of DNA in HGEC, and the maximal effect was seen at 25 or 50 ng/mL of IL-8. In addition, 50 ng/mL of IL-8 induced cell migration, and a neutralizing antibody of integrin beta-1 inhibited the migration. IL-8 also activated expression of integrin beta-1. Furthermore, IL-8 reduced the Aggregatibacter actinomycetemcomitans-induced increase in caspase-3 expression in HGEC. CONCLUSION IL-8 may facilitate the migration of gingival junctional epithelium by enhancing DNA synthesis, migration and preventing apoptosis of gingival epithelial cells.
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Affiliation(s)
- T Fujita
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Yoshimoto
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - S Matsuda
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - M Kajiya
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - M Kittaka
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - H Imai
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Iwata
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Uchida
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - H Shiba
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - H Kurihara
- Division of Applied Life Science, Department of Periodontal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
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