1
|
Yamashita A, Fukui T, Yamashita S, Ishida K, Matsumoto M. The combination of hydrogen gas and hydrogen-rich solution does not protect against ischemic spinal cord injury in rabbits. J Anesth 2024:10.1007/s00540-024-03334-4. [PMID: 38493423 DOI: 10.1007/s00540-024-03334-4] [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: 08/15/2023] [Accepted: 02/27/2024] [Indexed: 03/19/2024]
Abstract
PURPOSE This study aimed to determine whether the combination of H2 gas inhalation and administration of hydrogen-rich acetated Ringer's solution (HS) could protect against ischemic spinal cord injury in rabbits. METHODS In Experiment 1, rabbits were randomly assigned to a 1.2% H2 gas group, HS group, 1.2% H2 gas + HS group (combination group), or control group (n = 6 per group). The H2 concentration of HS was 0.65 mM. H2 was inhaled for 60 min, starting 5 min before reperfusion. HS (20 mL/kg) was divided into six bolus injections at 10-min intervals, starting 5 min before reperfusion. Spinal cord ischemia was produced by occluding the abdominal aorta for 15 min. Neurologic and histopathologic evaluations were performed 7 days after reperfusion. In Experiment 2, H2 concentrations in spinal cord tissue according to the administration of 1.2% H2 gas or HS were compared by measuring the electric current through a platinum needle electrode (n = 2). In Experiment 3, rabbits were assigned to a 2% H2 gas group or control group (n = 6 per group). Spinal cord ischemia was produced and neurologic and histopathologic evaluations were performed as in Experiment 1. RESULTS There were no significant differences among the groups in the neurologic and histopathologic outcomes in Experiments 1 and 3. Bolus administration of HS (10 mL) transiently increased the current to only 1/30th and 1/27th of the plateau current with 1.2% H2 gas inhalation in two animals. CONCLUSION These results suggest that the combination of 1.2% H2 gas inhalation and administration of a hydrogen-rich solution does not protect against ischemic spinal cord injury and that the increase in H2 concentration in spinal cord tissue after administration of HS is very low compared to 1.2% H2 gas inhalation.
Collapse
Affiliation(s)
- Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Takehiko Fukui
- Department of Anesthesiology, NHO Kanmon Medical Center, Yamaguchi, Japan
| | - Satoshi Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Kazuyoshi Ishida
- Department of Anesthesiology, Kurashiki Central Hospital, Kurashiki, Japan
| | - Mishiya Matsumoto
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan.
| |
Collapse
|
2
|
Zeze T, Shinjo T, Sato K, Nishimura Y, Imagawa M, Chen S, Ahmed AK, Iwashita M, Yamashita A, Fukuda T, Sanui T, Park K, King GL, Nishimura F. Endothelial Insulin Resistance Exacerbates Experimental Periodontitis. J Dent Res 2023; 102:1152-1161. [PMID: 37448347 DOI: 10.1177/00220345231181539] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023] Open
Abstract
Epidemiological studies suggest that the severity of periodontitis is higher in people with diabetes than in healthy individuals. Insulin resistance might play a crucial role in the pathogenesis of multiple diabetic complications and is reportedly induced in the gingiva of rodents with type 2 diabetes; however, the molecular mechanisms underlying the pathogenesis of diabetes-related periodontitis remain unclear. Therefore, we aimed to investigate whether endothelial insulin resistance in the gingiva may contribute to the pathogenesis of periodontitis as well as elucidate its underlying molecular mechanisms. We demonstrated that insulin treatment downregulated lipopolysaccharide (LPS)-induced or tumor necrosis factor α (TNFα)-induced VCAM1 expression in endothelial cells (ECs) via the PI3K/Akt activating pathway, resulting in reduced cellular adhesion between ECs and leukocytes. Hyperglycemia-induced selective insulin resistance in ECs diminished the effect of insulin on LPS- or TNFα-stimulated VCAM1 expression. Vascular endothelial cell-specific insulin receptor knockout (VEIRKO) mice exhibited selective inhibition of the PI3K/Akt pathway in the gingiva and advanced experimental periodontitis-induced alveolar bone loss via upregulation of Vcam1, Tnfα, Mcp-1, Rankl, and neutrophil migration into the gingiva compared with that in the wild-type (WT) mice despite being free from diabetes. We also observed that insulin-mediated activation of FoxO1, a downstream target of Akt, was suppressed in the gingiva of VEIRKO and high-fat diet (HFD)-fed mice, hyperglycemia-treated ECs, and primary ECs from VEIRKO. Further analysis using ECs transfected with intact and mutated FoxO1, with mutations at 3 insulin-mediated phosphorylation sites (T24A, S256D, S316A), suggested that insulin-mediated regulation of VCAM1 expression and cellular adhesion of ECs with leukocytes was attenuated by mutated FoxO1 overexpression. These results suggest that insulin resistance in ECs may contribute to the progression of periodontitis via dysregulated VCAM1 expression and cellular adhesion with leukocytes, resulting from reduced activation of the PI3K/Akt/FoxO1 axis.
Collapse
Affiliation(s)
- T Zeze
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - T Shinjo
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - K Sato
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Y Nishimura
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - M Imagawa
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - S Chen
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - A-K Ahmed
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - M Iwashita
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - A Yamashita
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - T Fukuda
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - T Sanui
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - K Park
- Section of Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - G L King
- Section of Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - F Nishimura
- Section of Periodontology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| |
Collapse
|
3
|
Yoshitani K, Ogata S, Kato S, Tsukinaga A, Takatani T, Kin N, Ezaka M, Shimizu J, Furuichi Y, Uezono S, Kida K, Seo K, Kakumoto S, Miyawaki H, Kawamata M, Tanaka S, Kakinohana M, Izumi S, Uchino H, Kakinuma T, Nishiwaki K, Hasegawa K, Matsumoto M, Ishida K, Yamashita A, Yamakage M, Yoshikawa Y, Morimoto Y, Saito H, Goto T, Masubuchi T, Kawaguchi M, Tsubaki K, Mizobuchi S, Obata N, Inagaki Y, Funaki K, Ishiguro Y, Sanui M, Taniguchi K, Nishimura K, Ohnishi Y. Effect of cerebrospinal fluid drainage pressure in descending and thoracoabdominal aortic repair: a prospective multicenter observational study. J Anesth 2023; 37:408-415. [PMID: 36944824 DOI: 10.1007/s00540-023-03179-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/06/2023] [Indexed: 03/23/2023]
Abstract
PURPOSE Cerebrospinal fluid drainage (CSFD) is recommended during open or endovascular thoracic aortic repair. However, the incidence of CSFD complications is still high. Recently, CSF pressure has been kept high to avoid complications, but the efficacy of CSFD at higher pressures has not been confirmed. We hypothesize that CSFD at higher pressures is effective for preventing motor deficits. METHODS This prospective observational study included 14 hospitals that are members of the Japanese Society of Cardiovascular Anesthesiologists. Patients who underwent thoracic and thoracoabdominal aortic repair were divided into four groups: Group 1, CSF pressure around 10 mmHg; Group 2, CSF pressure around 15 mmHg; Group 3, CSFD initiated when motor evoked potential amplitudes decreased; and Group 4, no CSFD. We assessed the association between the CSFD group and motor deficits using mixed-effects logistic regression with a random intercept for the institution. RESULTS Of 1072 patients in the study, 84 patients (open surgery, 51; thoracic endovascular aortic repair, 33) had motor deficits at discharge. Groups 1 and 2 were not associated with motor deficits (Group 1, odds ratio (OR): 1.53, 95% confidence interval (95% CI): 0.71-3.29, p = 0.276; Group 2, OR: 1.73, 95% CI: 0.62-4.82) when compared with Group 4. Group 3 was significantly more prone to motor deficits than Group 4 (OR: 2.56, 95% CI: 1.27-5.17, p = 0.009). CONCLUSION CSFD is not associated with motor deficits in thoracic and thoracoabdominal aortic repair with CSF pressure around 10 or 15 mmHg.
Collapse
Affiliation(s)
- Kenji Yoshitani
- Department of Transfusion, National Cerebral and Cardiovascular Center, 6-1 Kishibeshimmachi, Suita, Osaka, 564-8565, Japan.
- Department of Anesthesiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
| | - Soshiro Ogata
- Department of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Shinya Kato
- Department of Anesthesiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Akito Tsukinaga
- Department of Anesthesiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
- Department of Anesthesiology, School of Medicine, Yokohama City University, Yokohama, Japan
| | - Tsunenori Takatani
- Division of Central Clinical Laboratory, Nara Medical University, Kashihara, Nara, Japan
| | - Nobuhide Kin
- Department of Anesthesia, New Tokyo Hospital, Matsudo, Japan
| | - Mariko Ezaka
- Department of Anesthesia, New Tokyo Hospital, Matsudo, Japan
| | - Jun Shimizu
- Department of Anesthesiology, Sakakibara Heart Institute, Futyu, Japan
| | - Yuko Furuichi
- Department of Anesthesiology, Sakakibara Heart Institute, Futyu, Japan
| | - Shoichi Uezono
- Department of Anesthesiology, The Jikei University School of Medicine, Minato-ku, Japan
| | - Kotaro Kida
- Department of Anesthesiology, The Jikei University School of Medicine, Minato-ku, Japan
| | - Katsuhiro Seo
- Department of Emergency, Kokura Memorial Hospital, Fukuoka, Japan
| | - Shinichi Kakumoto
- Department of Anesthesiology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Hiroshi Miyawaki
- Department of Anesthesiology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Mikito Kawamata
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Satoshi Tanaka
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Manabu Kakinohana
- Department of Anesthesiology, Faculty of Medicine, University of Ryukyu, Nishihara, Japan
| | - Shunsuke Izumi
- Department of Anesthesiology, Faculty of Medicine, University of Ryukyu, Nishihara, Japan
| | - Hiroyuki Uchino
- Department of Anesthesiology, Tokyo Medical University, Shinjuku-ku, Japan
| | - Takayasu Kakinuma
- Department of Anesthesiology, Tokyo Medical University, Shinjuku-ku, Japan
| | - Kimitoshi Nishiwaki
- Department of Anesthesiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuko Hasegawa
- Department of Anesthesiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mishiya Matsumoto
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Kazuyoshi Ishida
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Michiaki Yamakage
- Department of Anesthesiology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yusuke Yoshikawa
- Department of Anesthesiology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yuji Morimoto
- Department of Anesthesiology and Critical Care Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hitoshi Saito
- Department of Anesthesiology and Critical Care Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Takahisa Goto
- Department of Anesthesiology, School of Medicine, Yokohama City University, Yokohama, Japan
- Department of Anesthesiology, Yokohama City University Medical Center, Yokohama, Japan
| | - Tetsuhito Masubuchi
- Department of Anesthesiology, Yokohama City University Medical Center, Yokohama, Japan
| | - Masahiko Kawaguchi
- Department of Anesthesiology, Nara Medical University, Kashihara, Nara, Japan
| | - Kosuke Tsubaki
- Department of Anesthesiology, Nara Medical University, Kashihara, Nara, Japan
| | - Satoshi Mizobuchi
- Division of Anesthesiology, Department of Surgery Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Norihiko Obata
- Division of Anesthesiology, Department of Surgery Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshimi Inagaki
- Division of Anesthesiology and Critical Care Medicine, Faculty of Medicine, Tottori University, Yonago, Japan
| | - Kazumi Funaki
- Division of Anesthesiology and Critical Care Medicine, Faculty of Medicine, Tottori University, Yonago, Japan
| | - Yoshiki Ishiguro
- Department of Anesthesiology, The Jikei University School of Medicine, Minato-ku, Japan
- Department of Anesthesiology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - Masamitsu Sanui
- Department of Anesthesiology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | | | - Kunihiro Nishimura
- Department of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Yoshihiko Ohnishi
- Department of Anesthesiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| |
Collapse
|
4
|
Goto K, Hida T, Funami N, Iwasawa R, Mita S, Botilde Y, Yamashita A, Inoh Y, Haddish-Berhane N, Xie J, Roshak A, Knoblauch R, Ohe Y. P15.03 A Phase 1/1b Study of Lazertinib as Monotherapy and in Combination with Amivantamab in Advanced EGFR-Mutated NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
5
|
Murakami S, Tsuruta S, Ishida K, Yamashita A, Matsumoto M. Excessive dynamic airway collapse during general anesthesia: a case report. JA Clin Rep 2020; 6:73. [PMID: 32989528 PMCID: PMC7522133 DOI: 10.1186/s40981-020-00380-1] [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] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/16/2020] [Accepted: 09/22/2020] [Indexed: 11/24/2022] Open
Abstract
Background Excessive dynamic airway collapse (EDAC) is an uncommon cause of high airway pressure during mechanical ventilation. However, EDAC is not widely recognized by anesthesiologists, and therefore, it is often misdiagnosed as asthma. Case presentation A 70-year-old woman with a history of asthma received anesthesia with sevoflurane for a laparotomic cholecystectomy. Under general anesthesia, she developed wheezing, high inspiratory pressure, and a shark-fin waveform on capnography, which was interpreted as an asthma attack. However, treatment with a bronchodilator was ineffective. Bronchoscopy revealed the collapse of the trachea and main bronchi upon expiration. We reviewed the preoperative computed tomography scan and saw bulging of the posterior membrane into the airway lumen, leading to a diagnosis of EDAC. Conclusions Although both EDAC and bronchospasm present as similar symptoms, the treatments are different. Bronchoscopy proved useful for distinguishing between these two entities. Positive end-expiratory pressure should be applied and bronchodilators avoided in EDAC.
Collapse
Affiliation(s)
- Shunichi Murakami
- Department of Anesthesiology, Shuto General Hospital, Kogaisaku 1000-1, Yanai, Yamaguchi, 742-0032, Japan.
| | - Shunsuke Tsuruta
- Department of Anesthesiology, Shuto General Hospital, Kogaisaku 1000-1, Yanai, Yamaguchi, 742-0032, Japan
| | - Kazuyoshi Ishida
- Department of Anesthesiology, Japan Community Healthcare Organization Tokuyama Central Hospital, Kodacho 1-1, Shunan, Yamaguchi, 745-8522, Japan
| | - Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Minami-Kogushi 1-1-1, Ube, Yamaguchi, 755-8505, Japan
| | - Mishiya Matsumoto
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Minami-Kogushi 1-1-1, Ube, Yamaguchi, 755-8505, Japan
| |
Collapse
|
6
|
Yoshitani K, Kawaguchi M, Kawamata M, Kakinohana M, Kato S, Hasuwa K, Yamakage M, Yoshikawa Y, Nishiwaki K, Hasegawa K, Inagaki Y, Funaki K, Matsumoto M, Ishida K, Yamashita A, Seo K, Kakumoto S, Tsubaki K, Tanaka S, Ishida T, Uchino H, Kakinuma T, Yamada Y, Mori Y, Izumi S, Shimizu J, Furuichi Y, Kin N, Uezono S, Kida K, Nishimura K, Nakai M, Ohnishi Y. Cerebrospinal fluid drainage to prevent postoperative spinal cord injury in thoracic aortic repair. J Anesth 2020; 35:43-50. [PMID: 32980925 DOI: 10.1007/s00540-020-02857-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/15/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Cerebrospinal fluid drainage (CSFD) is recommended as a spinal cord protective strategy in open and endovascular thoracic aortic repair. Although small studies support the use of CSFD, systematic reviews have not suggested definite conclusion and a large-scale study is needed. Therefore, we reviewed medical records of patients who had undergone descending and thoracoabdominal aortic repair (both open and endovascular repair) at multiple institutions to assess the association between CSFD and postoperative motor deficits. METHODS Patients included in this study underwent descending or thoracoabdominal aortic repair between 2000 and 2013 at 12 hospitals belonging to the Japanese Association of Spinal Cord Protection in Aortic Surgery. We conducted a retrospective study to investigate whether motor-evoked potential monitoring is effective in reducing motor deficits in thoracic aortic aneurysm repair. We use the same dataset to examine whether CSFD reduces motor deficits after propensity score matching. RESULTS We reviewed data from 1214 patients [open surgery, 601 (49.5%); endovascular repair, 613 (50.5%)]. CSFD was performed in 417 patients and not performed in the remaining 797 patients. Postoperative motor deficits were observed in 75 (6.2%) patients at discharge. After propensity score matching (n = 700), mixed-effects logistic regression performed revealed that CSFD is associated with postoperative motor deficits at discharge [adjusted odds ratio (OR), 3.87; 95% confidence interval (CI), 2.30-6.51]. CONCLUSION CSFD may not be effective for postoperative motor deficits at discharge.
Collapse
Affiliation(s)
- Kenji Yoshitani
- Department of Anesthesiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan.
| | | | - Mikito Kawamata
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Manabu Kakinohana
- Department of Anesthesiology, Faculty of Medicine, University of Ryukyu, Naha, Japan
| | - Shinya Kato
- Department of Anesthesiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan
| | - Kyoko Hasuwa
- Department of Anesthesiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan
| | - Michiaki Yamakage
- Department of Anesthesiology, School of Medicine, Sapporo Medical University, Sapporo, Japan
| | - Yusuke Yoshikawa
- Department of Anesthesiology, School of Medicine, Sapporo Medical University, Sapporo, Japan
| | - Kimitoshi Nishiwaki
- Department of Anesthesiology, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Kazuko Hasegawa
- Department of Anesthesiology, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Yoshimi Inagaki
- Department of Anesthesiology and Critical Care, Medicine, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Kazumi Funaki
- Department of Anesthesiology and Critical Care, Medicine, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Mishiya Matsumoto
- Department of Anesthesiology, Graduate School of Medicine, Yamaguchi University, Ube, Japan
| | - Kazuyoshi Ishida
- Department of Anesthesiology, Graduate School of Medicine, Yamaguchi University, Ube, Japan
| | - Atsuo Yamashita
- Department of Anesthesiology, Graduate School of Medicine, Yamaguchi University, Ube, Japan
| | - Katsuhiro Seo
- Department of Anesthesiology and Intensive Care Medicine, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Shinichi Kakumoto
- Department of Anesthesiology and Intensive Care Medicine, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Kosuke Tsubaki
- Department of Anesthesiology, Nara Medical University, Kashihara, Japan
| | - Satoshi Tanaka
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takashi Ishida
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hiroyuki Uchino
- Department of Anesthesiology, Tokyo Medical University, Shinjuku Ku, Japan
| | - Takayasu Kakinuma
- Department of Anesthesiology, Tokyo Medical University, Shinjuku Ku, Japan
| | - Yoshitsugu Yamada
- Department of Anesthesiology, Faculty of Vital Care Medicine, The Graduate School of Medicine, The University of Tokyo, Bunkyo Ku, Japan
| | - Yoshiteru Mori
- Department of Anesthesiology, Faculty of Vital Care Medicine, The Graduate School of Medicine, The University of Tokyo, Bunkyo Ku, Japan
| | - Shunsuke Izumi
- Department of Anesthesiology, Faculty of Medicine, University of Ryukyu, Naha, Japan
| | - Jun Shimizu
- Department of Anesthesiology, Sakakibara Heart Institute, Fuchu, Japan
| | - Yuko Furuichi
- Department of Anesthesiology, Sakakibara Heart Institute, Fuchu, Japan
| | - Nobuhide Kin
- Department of Anesthesiology, New Tokyo Hospital, Matsudo, Japan
| | - Shoichi Uezono
- Department of Anesthesiology, School of Medicine, The Jikei University, Minato Ku, Japan
| | - Kotaro Kida
- Department of Anesthesiology, School of Medicine, The Jikei University, Minato Ku, Japan
| | - Kunihiko Nishimura
- Department of Statistics and Data Analysis, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Michikazu Nakai
- Department of Statistics and Data Analysis, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yoshihiko Ohnishi
- Department of Anesthesiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan
| |
Collapse
|
7
|
Azuma M, Maekawa K, Yamashita A, Yokogami K, Enzaki M, Khant ZA, Takeshima H, Asada Y, Wang Y, Hirai T. Characterization of Carotid Plaque Components by Quantitative Susceptibility Mapping. AJNR Am J Neuroradiol 2019; 41:310-317. [PMID: 31879331 DOI: 10.3174/ajnr.a6374] [Citation(s) in RCA: 7] [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: 08/15/2019] [Accepted: 11/14/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND PURPOSE Intraplaque hemorrhage in the carotid artery is related to an increased risk of cerebrovascular ischemic events. We aimed to investigate whether quantitative susceptibility mapping can characterize carotid artery plaque components and quantify the severity of intraplaque hemorrhage. MATERIALS AND METHODS For this ex vivo quantitative susceptibility mapping study, 9 carotid endarterectomy specimens were imaged on a 3T MR imaging scanner using a 3D multi-echo gradient-echo sequence and a microscopy coil. The samples were examined histologically using immunostains, including glycophorin A and Prussian blue. The areas of erythrocytes, iron deposits, calcification, and fibrous matrices observed on stained sections were compared with quantitative susceptibility mapping findings and their mean susceptibility values. RESULTS Intraplaque hemorrhage and iron deposits were observed only in areas hyperintense on quantitative susceptibility mapping; calcifications and fibrous matrices were prevalent in hypointense areas. The mean susceptibility values for necrotic cores with intraplaque hemorrhage but no iron deposits, cores with iron deposits but no intraplaque hemorrhage, cores without either intraplaque hemorrhage or iron deposits, and cores with calcification were 188 ± 51, 129 ± 49, -11 ± 17, and -158 ± 78 parts per billion, respectively. There was a significant difference in the mean susceptibility values among the 4 histologic components (P < .01). The mean susceptibility values of the whole plaque positively correlated with the percentage area positive for glycophorin A (r = 0.65, P < .001) and Prussian blue (r = 0.47, P < .001). CONCLUSIONS Our findings suggest that quantitative susceptibility mapping can characterize the composition of carotid plaques and quantify the degree of intraplaque hemorrhage and iron deposits.
Collapse
Affiliation(s)
- M Azuma
- From the Departments of Radiology (M.A., Z.A.K., T.H.)
| | | | | | - K Yokogami
- Neurosurgery (K.Y., H.T., Y.A.), Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - M Enzaki
- Radiology Section (M.E.), University of Miyazaki Hospital, Miyazaki, Japan
| | - Z A Khant
- From the Departments of Radiology (M.A., Z.A.K., T.H.)
| | - H Takeshima
- Neurosurgery (K.Y., H.T., Y.A.), Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Y Asada
- Neurosurgery (K.Y., H.T., Y.A.), Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Y Wang
- Department of Radiology (Y.W.), Weill Medical College of Cornell University, New York, New York
| | - T Hirai
- From the Departments of Radiology (M.A., Z.A.K., T.H.)
| |
Collapse
|
8
|
Murakami S, Ishida K, Ishihara H, Okamura T, Oda T, Suzuki R, Yamashita A, Yamashita S, Kurazumi H, Suzuki M, Matsumoto M. A Case of Successful Treatment of Cerebral Embolism Using Endovascular Thrombectomy Immediately After Transcatheter Aortic Valve Implantation. J Cardiothorac Vasc Anesth 2019; 34:1275-1280. [PMID: 31864841 DOI: 10.1053/j.jvca.2019.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 11/16/2019] [Accepted: 11/18/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Shunichi Murakami
- Department of Anesthesiology, Yamaguchi University Hospital, Ube, Yamaguchi, Japan.
| | - Kazuyoshi Ishida
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Hideyuki Ishihara
- Department of Neurosurgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Takayuki Okamura
- Division of Cardiology, Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Tetsuro Oda
- Division of Cardiology, Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Ryo Suzuki
- Division of Cardiac Surgery, Department of Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Satoshi Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Hiroshi Kurazumi
- Division of Cardiac Surgery, Department of Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Michiyasu Suzuki
- Department of Neurosurgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Mishiya Matsumoto
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| |
Collapse
|
9
|
Fukuda H, Yamashita A, Ishikawa H, Nagata N, Niihara M. MON-PO556: The Invention of Tongue Cover to Reduce Discomfort During Intake of Oral Nutritional Supplements. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32389-1] [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]
|
10
|
Suzuki R, Mikamo A, Matsuno Y, Fujita A, Kurazumi H, Yamashita A, Hamano K. Effect of Autotransfusion Using Intraoperative Predonated Autologous Blood on Coagulopathy during Thoracic Aortic Surgery: A Randomized Controlled Trial. Ann Thorac Cardiovasc Surg 2019; 25:311-317. [PMID: 31341133 PMCID: PMC6923723 DOI: 10.5761/atcs.oa.19-00106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background: Intraoperative predonated autologous blood transfusion is thought to replenish platelets and coagulation factors and ameliorate coagulopathy. This study aimed to evaluate whether intraoperative predonated autotransfusion improves coagulopathy during thoracic aortic surgery. Methods: Patients who underwent thoracic aortic surgery were randomized into two groups as follows: those who received intraoperative predonated blood (group A: n = 31) and those who did not receive (group N: n = 22). In group A, autologous blood was retransfused immediately after cessation of cardiopulmonary bypass (c-CPB). Results: The mean intraoperative allogenic blood or blood product transfusion requirements were significantly lesser in group A than in group N (packed red blood cells [RBCs]: 6.3 ± 5.1 vs. 9.1 ± 4.3 units, p = 0.04; fresh frozen plasma [FFP]: 3.0 ± 4.1 vs. 6.1 ± 5.7 units, p = 0.03). After c-CPB, hemoglobin (Hb) level, platelet count, and coagulopathy became significantly worse than those at the start of surgery in both the groups. However, the values significantly improved 30 min after c-CPB only in group A. Renal function was significantly worse in group N. Conclusions: Intraoperative predonated autotransfusion significantly improved coagulopathy, with reduced allogeneic blood transfusion volume during thoracic aortic surgery. Furthermore, reduction of allogeneic blood transfusion may reduce the adverse effects on renal function.
Collapse
Affiliation(s)
- Ryo Suzuki
- Department of Surgery and Clinical Science, Division of Cardiac Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Akihito Mikamo
- Department of Surgery and Clinical Science, Division of Cardiac Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Yuutaro Matsuno
- Department of Surgery and Clinical Science, Division of Cardiac Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Akira Fujita
- Department of Surgery and Clinical Science, Division of Cardiac Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Hiroshi Kurazumi
- Department of Surgery and Clinical Science, Division of Cardiac Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Kimikazu Hamano
- Department of Surgery and Clinical Science, Division of Cardiac Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| |
Collapse
|
11
|
Thompson MC, Wolff AM, Nango E, Kubo M, Young ID, Nakane T, Sugahara M, Tanaka R, Ito K, Brewster AS, Sierra RG, Yumoto F, Nomura T, Owada S, Hino T, Tosha T, Tanaka T, Im D, Aquila A, Carbajo S, Koralek J, Yamashita A, Luo F, Boutet S, Sauter NK, Tono K, Iwata S, Fraser JS. Turning up the heat on dynamic proteins: observing molecular motion in real time with temperature-jump X-ray crystallography. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s0108767319098349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
12
|
Yoshida T, Kurosaki Y, Mine A, Kimura-Ono A, Mino T, Osaka S, Nakagawa S, Maekawa K, Kuboki T, Yatani H, Yamashita A. Fifteen-year survival of resin-bonded vs full-coverage fixed dental prostheses. J Prosthodont Res 2019; 63:374-382. [DOI: 10.1016/j.jpor.2019.02.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 02/01/2019] [Accepted: 02/13/2019] [Indexed: 11/28/2022]
|
13
|
Yoshitani K, Masui K, Kawaguchi M, Kawamata M, Kakinohana M, Kato S, Hasuwa K, Yamakage M, Yoshikawa Y, Nishiwaki K, Aoyama T, Inagaki Y, Yamasaki K, Matsumoto M, Ishida K, Yamashita A, Seo K, Kakumoto S, Hayashi H, Tanaka Y, Tanaka S, Ishida T, Uchino H, Kakinuma T, Yamada Y, Mori Y, Izumi S, Nishimura K, Nakai M, Ohnishi Y. Clinical Utility of Intraoperative Motor-Evoked Potential Monitoring to Prevent Postoperative Spinal Cord Injury in Thoracic and Thoracoabdominal Aneurysm Repair: An Audit of the Japanese Association of Spinal Cord Protection in Aortic Surgery Database. Anesth Analg 2018; 126:763-768. [PMID: 29283918 DOI: 10.1213/ane.0000000000002749] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Spinal cord ischemic injury is the most devastating sequela of descending and thoracoabdominal aortic surgery. Motor-evoked potentials (MEPs) have been used to intraoperatively assess motor tract function, but it remains unclear whether MEP monitoring can decrease the incidence of postoperative motor deficits. Therefore, we reviewed multicenter medical records of patients who had undergone descending and thoracoabdominal aortic repair (both open surgery and endovascular repair) to assess the association of MEP monitoring with postoperative motor deficits. METHODS Patients included in the study underwent descending or thoracoabdominal aortic repair at 12 hospitals belonging to the Japanese Association of Spinal Cord Protection in Aortic Surgery between 2000 and 2013. Using multivariable mixed-effects logistic regression analysis, we investigated whether intraoperative MEP monitoring was associated with postoperative motor deficits at discharge after open and endovascular aortic repair. RESULTS We reviewed data from 1214 patients (open surgery, 601 [49.5%]; endovascular repair, 613 [50.5%]). MEP monitoring was performed in 631 patients and not performed in the remaining 583 patients. Postoperative motor deficits were observed in 75 (6.2%) patients at discharge. Multivariable logistic regression analysis revealed that postoperative motor deficits at discharge did not have a significant association with MEP monitoring (adjusted odds ratio [OR], 1.13; 95% confidence interval [CI], 0.69-1.88; P = .624), but with other factors: history of neural deficits (adjusted OR, 6.08; 95% CI, 3.10-11.91; P < .001), spinal drainage (adjusted OR, 2.14; 95% CI, 1.32-3.47; P = .002), and endovascular procedure (adjusted OR, 0.45; 95% CI, 0.27-0.76; P = .003). The sensitivity and specificity of MEP <25% of control value for motor deficits at discharge were 37.8% (95% CI, 26.5%-49.5%) and 95.5% (95% CI, 94.7%-96.4%), respectively. CONCLUSIONS MEP monitoring was not significantly associated with motor deficits at discharge.
Collapse
Affiliation(s)
- Kenji Yoshitani
- From the Department of Anesthesiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kenichi Masui
- Department of Anesthesiology, National Defense Medical College, Tokorozawa, Japan.,Department of Anesthesiology, Showa University School of Medicine, Tokyo, Japan
| | | | - Mikito Kawamata
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Manabu Kakinohana
- Department of Anesthesiology, University of Ryukyu, Faculty of Medicine, Nishihara, Japan
| | - Shinya Kato
- From the Department of Anesthesiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kyoko Hasuwa
- From the Department of Anesthesiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Michiaki Yamakage
- Department of Anesthesiology, Sapporo Medical University, School of Medicine, Sapporo, Japan
| | - Yusuke Yoshikawa
- Department of Anesthesiology, Sapporo Medical University, School of Medicine, Sapporo, Japan
| | - Kimitoshi Nishiwaki
- Department of Anesthesiology, Nagoya University Graduate School of Medicine, Chikusa-ku, Nagoya
| | - Tadashi Aoyama
- Department of Anesthesiology, Nagoya University Graduate School of Medicine, Chikusa-ku, Nagoya
| | - Yoshimi Inagaki
- Department of Anesthesiology and Critical Care and Medicine, Tottori University, Faculty of Medicine, Tottori, Japan
| | - Kazumasa Yamasaki
- Department of Anesthesiology and Critical Care and Medicine, Tottori University, Faculty of Medicine, Tottori, Japan
| | - Mishiya Matsumoto
- Department of Anesthesiology, Yamaguchi University, Graduate School of Medicine, Ube, Japan
| | - Kazuyoshi Ishida
- Department of Anesthesiology, Yamaguchi University, Graduate School of Medicine, Ube, Japan
| | - Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University, Graduate School of Medicine, Ube, Japan
| | - Katsuhiro Seo
- Department of Anesthesiology and Intensive Care Medicine, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Shinichi Kakumoto
- Department of Anesthesiology and Intensive Care Medicine, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Hironobu Hayashi
- Department of Anesthesiology, Nara Medical University, Kashihara, Japan
| | - Yuu Tanaka
- Department of Anesthesiology, Nara Medical University, Kashihara, Japan
| | - Satoshi Tanaka
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takashi Ishida
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hiroyuki Uchino
- Department of Anesthesiology, Tokyo Medical University, Tokyo, Japan
| | - Takayasu Kakinuma
- Department of Anesthesiology, Tokyo Medical University, Tokyo, Japan
| | - Yoshitsugu Yamada
- Department of Anesthesiology, Faculty of Vital Care Medicine, The Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoshiteru Mori
- Department of Anesthesiology, Faculty of Vital Care Medicine, The Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shunsuke Izumi
- Department of Anesthesiology, University of Ryukyu, Faculty of Medicine, Nishihara, Japan
| | - Kunihiro Nishimura
- Department of Statistics and Data Analysis, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Michikazu Nakai
- Department of Statistics and Data Analysis, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yoshihiko Ohnishi
- From the Department of Anesthesiology, National Cerebral and Cardiovascular Center, Suita, Japan
| |
Collapse
|
14
|
Kimura T, Ozaki T, Fujita K, Yamashita A, Morioka M, Ozono K, Tsumaki N. Proposal of patient-specific growth plate cartilage xenograft model for FGFR3 chondrodysplasia. Osteoarthritis Cartilage 2018; 26:1551-1561. [PMID: 30086379 DOI: 10.1016/j.joca.2018.07.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 07/12/2018] [Accepted: 07/21/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE FGFR3 chondrodysplasia is caused by a gain-of-function mutation of the FGFR3 gene. The disease causes abnormal growth plate cartilage and lacks effective drug treatment. We sought to establish an in vivo model for the study of FGFR3 chondrodysplasia pathology and drug testing. DESIGN We created cartilage from human induced pluripotent stem cells (hiPSCs) and transplanted the cartilage into the subcutaneous spaces of immunodeficient mice. We then created cartilage from the hiPSCs of patients with FGFR3 chondrodysplasia and transplanted them into immunodeficient mice. We treated some mice with a FGFR inhibitor after the transplantation. RESULTS Xenografting the hiPSC-derived cartilage reproduced human growth plate cartilage consisting of zones of resting, proliferating, prehypertrophic and hypertrophic chondrocytes and bone in immunodeficient mice. Immunohistochemistry of xenografts using anti-human nuclear antigen antibody indicated that all chondrocytes in growth plate cartilage were human, whereas bone was composed of human and mouse cells. The pathology of small hypertrophic chondrocytes due to up-regulated FGFR3 signaling in FGFR3 skeletal dysplasia was recapitulated in growth plate cartilage formed in the xenografts of patient-specific hiPSC-derived cartilage. The mean diameters of hypertrophic chondrocytes between wild type and thanatophoric dysplasia were significantly different (95% CI: 13.2-26.9; n = 4 mice, one-way analysis of variance (ANOVA)). The pathology was corrected by systemic administration of a FGFR inhibitor to the mice. CONCLUSION The patient-specific growth plate cartilage xenograft model for FGFR3 skeletal dysplasia indicated recapitulation of pathology and effectiveness of a FGFR inhibitor for treatment and warrants more study for its usefulness to study disease pathology and drug testing.
Collapse
Affiliation(s)
- T Kimura
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan; Department of Pediatrics, Osaka University Graduate School of Medicine, Japan
| | - T Ozaki
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan
| | - K Fujita
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan
| | - A Yamashita
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan
| | - M Morioka
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan
| | - K Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Japan
| | - N Tsumaki
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan.
| |
Collapse
|
15
|
Terada S, Irikoma S, Yamashita A, Murakoshi T. Incidence of respiratory depression after epidural administration of morphine for cesarean delivery: findings using a continuous respiratory rate monitoring system. Int J Obstet Anesth 2018; 38:32-36. [PMID: 30477999 DOI: 10.1016/j.ijoa.2018.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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] [Received: 06/21/2018] [Revised: 10/12/2018] [Accepted: 10/21/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Epidural morphine is widely used for postoperative analgesia after cesarean delivery. However, respiratory depression can occur after neuraxial administration of morphine. Previous reports describing respiratory depression in obstetric patients have relied on intermittent visual counting of the respiratory rate. In this study, we estimated the incidence of respiratory depression in patients who had received epidural morphine after cesarean delivery, using a continuous respiratory rate monitoring system with a finger sensor. METHODS One hundred patients scheduled to undergo elective cesarean delivery and receive intraoperative neuraxial morphine between April and December 2016 were recruited for this single-center, prospective observational study. Postoperatively, all patients received epidural morphine 3 mg and were equipped with the Nellcor respiratory rate monitoring system. Respiratory depression was defined as both bradypnea (respiratory rate ≤10 breaths/min) and oxygen desaturation (mild ≤95%; moderate ≤90%; severe ≤85%) for longer than one minute. The number of patients with respiratory depression between administration of morphine and first ambulation was recorded hourly. RESULTS Complete monitoring was obtained for 89 of 100 women. The median duration of monitoring was 19.0 hours. Forty-six patients (52%) developed mild respiratory depression at least once before ambulation, but only one (1%) developed moderate respiratory depression. None required supplemental oxygen or naloxone. CONCLUSIONS Approximately half the women experienced mild respiratory depression, but only one developed moderate respiratory depression. Continuous respiratory rate monitoring until ambulation may assist in early identification of respiratory depression after neuraxial administration of morphine.
Collapse
Affiliation(s)
- S Terada
- Department of Obstetrics and Gynecology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan.
| | - S Irikoma
- Department of Obstetrics and Gynecology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
| | - A Yamashita
- Department of Obstetrics and Gynecology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
| | - T Murakoshi
- Department of Obstetrics and Gynecology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
| |
Collapse
|
16
|
Shichiji M, Ishigaki K, Sato T, Yamashita A, Nagata S. CONGENITAL MUSCULAR DYSTROPHIES. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.371] [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]
|
17
|
Fukuda H, Yamashita A, Imai T, Tsumaki H, Nagata N, Ishikawa H, Niihara M, Tsubosa Y, Onozawa Y. Preventive effect of nutrition support on peroneal neuropathy in cancer patients. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1337] [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]
|
18
|
Yang N, An Q, Yamakawa H, Tamura Y, Yamashita A, Takahashi K, Kinomoto M, Yamasaki H, Itkonen M, Alnajjar FS, Shimoda S, Asama H, Hattori N, Miyai I. Clarification of muscle synergy structure during standing-up motion of healthy young, elderly and post-stroke patients. IEEE Int Conf Rehabil Robot 2018; 2017:19-24. [PMID: 28813787 DOI: 10.1109/icorr.2017.8009215] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Standing-up motion is an important daily activity. It has been known that elderly and post-stroke patients have difficulty in performing standing-up motion. The standing-up motion is retrained by therapists to maximize independence of the elderly and post-stroke patients, but it is not clear how the elderly and post-stroke patients control their redundant muscles to achieve standing-up motion. This study employed the concept of muscle synergy to analyze how healthy young adults, healthy elderly people and post-stroke patients control their muscles. Experimental result verified that four muscle synergies can represent human standing-up motion. In addition, it indicated that the post-stroke patients shift the weights of muscle synergies to finish standing-up motion comparing to healthy subjects. Moreover, different muscle synergy structures were associated with the CoM and joint kinematics.
Collapse
|
19
|
Ishida K, Uchida M, Utada K, Yamashita A, Yamashita S, Fukuda S, Matsumoto M, Sakabe T. Correction to: Cerebrovascular CO 2 reactivity during isoflurane-nitrous oxide anesthesia in patients with chronic renal failure. J Anesth 2017; 32:150. [PMID: 29275514 DOI: 10.1007/s00540-017-2443-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In the original publication of the article, the first sentence was published incorrectly under the section "Patients and preoperative assessment". The correct sentence should read as, "The Yamaguchi University Graduate School of Medicine Ethics Committee for Human Study approved the study protocol (18th August 2004: H16-71)".
Collapse
Affiliation(s)
- Kazuyoshi Ishida
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Masato Uchida
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Kohji Utada
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Satoshi Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Shiro Fukuda
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Mishiya Matsumoto
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Takefumi Sakabe
- Department of Anesthesiology, Yamaguchi Rosai Hospital, 1315-4 Onoda, Sanyoonoda, Yamaguchi, 756-0095, Japan
| |
Collapse
|
20
|
Ishida K, Uchida M, Utada K, Yamashita A, Yamashita S, Fukuda S, Matsumoto M, Sakabe T. Cerebrovascular CO 2 reactivity during isoflurane-nitrous oxide anesthesia in patients with chronic renal failure. J Anesth 2017; 32:15-22. [PMID: 29103148 DOI: 10.1007/s00540-017-2422-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 10/24/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE We assessed the cerebrovascular CO2 reactivity (CO2R) in chronic renal failure (CRF) patients without diabetes mellitus (DM), uncontrolled hypertension, peripheral vascular disease, or neurological disease under isoflurane-nitrous oxide anesthesia. METHODS Forty-nine patients undergoing surgery, including 36 CRF patients (30 receiving dialysis and six pre-dialysis patients) and 13 patients without CRF (controls). Middle cerebral artery flow velocity (VMCA) was measured by transcranial Doppler ultrasonography at an end-tidal CO2 of 35 to 45 mmHg. CO2R was calculated as an absolute value (change in VMCA per mmHg PaCO2) and a relative value (absolute CO2R/baseline VMCA × 100). Factors associated with CO2R were evaluated simultaneously. RESULTS Despite no significant differences in the absolute and relative values of CO2R between the CRF (mean 2.5 cm/s/mmHg; median 5.0%/mmHg) and control (2.4 cm/s/mmHg; 5.0%/mmHg) groups, blood urea nitrogen (BUN) concentrations in the CRF group correlated inversely with both absolute and relative CO2R. BUN concentration was higher (mean 72 versus 53 mg/dl, p = 0.006) and relative CO2R was lower (mean 2.6 versus 5.7%/mmHg, p = 0.011) in patients with pre-dialysis CRF (n = 6) versus CRF patients receiving dialysis (n = 30). CONCLUSIONS CO2R in CRF patients was not significantly different from that in controls. However, in CRF patients with high BUN concentrations, CO2R might be impaired, leading to reduced cerebrovascular reserve capacity. Because DM is a major cause of CRF and we excluded DM patients, our results might not be applicable to patients with DM-induced CRF.
Collapse
Affiliation(s)
- Kazuyoshi Ishida
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Masato Uchida
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Kohji Utada
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Satoshi Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Shiro Fukuda
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Mishiya Matsumoto
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Takefumi Sakabe
- Department of Anesthesiology, Yamaguchi Rosai Hospital, 1315-4 Onoda, Sanyoonoda, Yamaguchi, 756-0095, Japan
| |
Collapse
|
21
|
Fukui T, Ishida K, Mizukami Y, Shiramoto K, Harada H, Yamashita A, Yamashita S, Matsumoto M. Comparison of the protective effects of direct ischemic preconditioning and remote ischemic preconditioning in a rabbit model of transient spinal cord ischemia. J Anesth 2017; 32:3-14. [DOI: 10.1007/s00540-017-2420-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 10/20/2017] [Indexed: 12/25/2022]
|
22
|
Yokota T, Hamauchi S, Yoshida Y, Yurikusa T, Suzuki M, Yamashita A, Ogawa H, Onoe T, Mori K, Onitsuka T. The phase II study of HMB/Arg/Gln against oral mucositis induced by chemoradiotherapy for head and neck cancer patients. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx374.051] [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: 11/14/2022] Open
|
23
|
Gi T, Sato Y, Tokumitsu T, Yamashita A, Moriguchi-Goto S, Takeshima H, Sato S, Asada Y. Cover Image. Cytopathology 2017. [DOI: 10.1111/cyt.12452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
24
|
Yamashita A, Murakami T, Kadowaki S, Yoshida K, Ito E, Matsuda N, Chang F, Hattori N, Miyai I, Ugawa Y. Spike-timing dependent plasticity at spinal motoneurons. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.157] [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: 10/20/2022] Open
|
25
|
Sano T, Nagayasu S, Suzuki S, Iwashita M, Yamashita A, Shinjo T, Sanui T, Kushiyama A, Kanematsu T, Asano T, Nishimura F. Epicatechin downregulates adipose tissue CCL19 expression and thereby ameliorates diet-induced obesity and insulin resistance. Nutr Metab Cardiovasc Dis 2017; 27:249-259. [PMID: 28062181 DOI: 10.1016/j.numecd.2016.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 11/05/2016] [Accepted: 11/11/2016] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND AIMS Epicatechin (EC) intake has been suggested to be beneficial for the prevention of cardiovascular disorders, and it is well known that adipose tissue inflammation is one of the major risk factors for coronary heart diseases. The purpose of the present study was to determine the in vitro and in vivo effects of EC on adipose tissue inflammation and obesity. METHODS AND RESULTS DNA microarray analysis was performed to evaluate the effects of EC on gene expression in adipocytes co-cultured with bacterial endotoxin-stimulated macrophages. To determine the in vivo effects of the catechin, C57BL/6 mice were fed either a high-fat diet (HFD) or HFD combined with EC, and metabolic changes were observed EC suppressed the expression of many inflammatory genes in the adipocytes co-cultured with endotoxin-stimulated macrophages. Specifically, EC markedly suppressed chemokine (CC motif) ligand 19 (CCL19) expression. The target cell of EC appeared to macrophages. The in vivo study indicated that mice fed the EC-supplemented HFD were protected from diet-induced obesity and insulin resistance. Accordingly, the expression levels of genes associated with inflammation in adipose tissue and in the liver were downregulated in this group of mice. CONCLUSIONS EC exerts beneficial effects for the prevention of adipose tissue inflammation and insulin resistance. Since we previously reported that mice deficient in the CCL19 receptor were protected from diet-induced obesity and insulin resistance, it can be concluded that the beneficial effects of EC could be mediated, at least in part, by marked suppression of CCL19 expression.
Collapse
Affiliation(s)
- T Sano
- Section of Periodontology, Kyushu University Faculty of Dental Science, Fukuoka, Japan
| | - S Nagayasu
- Department of Dental Science for Health Promotion, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - S Suzuki
- Department of Dental Science for Health Promotion, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - M Iwashita
- Section of Periodontology, Kyushu University Faculty of Dental Science, Fukuoka, Japan
| | - A Yamashita
- Section of Periodontology, Kyushu University Faculty of Dental Science, Fukuoka, Japan
| | - T Shinjo
- Section of Periodontology, Kyushu University Faculty of Dental Science, Fukuoka, Japan
| | - T Sanui
- Section of Periodontology, Kyushu University Faculty of Dental Science, Fukuoka, Japan
| | - A Kushiyama
- Division of Metabolic Diseases, The Institute for Adult Diseases, Asahi Life Foundation, Tokyo, Japan
| | - T Kanematsu
- Department of Cellular and Molecular Pharmacology, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - T Asano
- Department of Biological Chemistry, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - F Nishimura
- Section of Periodontology, Kyushu University Faculty of Dental Science, Fukuoka, Japan.
| |
Collapse
|
26
|
Gi T, Sato Y, Tokumitsu T, Yamashita A, Moriguchi-Goto S, Takeshima H, Sato S, Asada Y. Microvascular proliferation of brain metastases mimics glioblastomas in squash cytology. Cytopathology 2016; 28:228-234. [PMID: 27995658 DOI: 10.1111/cyt.12405] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Although microvascular proliferation is a key feature in the diagnosis of high-grade glioma, the characteristics of metastatic tumour vessels in smear preparations have not been documented. In this study, the vascular changes in metastatic brain tumours, using squash cytology to examine the vascular patterns in brain metastases, were reviewed. METHODS One hundred and forty-three squash smears of brain tissue, including 25 normal or reactive tissue, 23 malignant lymphomas, 8 grade I glioma (pilocytic astrocytoma), 23 grade II glioma (diffuse astrocytoma and oligodendroglioma), 42 grade IV glioma (glioblastoma), and 22 metastasis, were assessed. Two vascular patterns were assessed: thick and branching, and glomeruloid. The vessel density, nuclear layer and the number of vessel branches were compared. Furthermore, tumour vessels of brain metastases were analysed by histology and for immunohistochemical expression of CD34, α-smooth muscle actin (SMA) and high-molecular-weight caldesmon (h-CD). RESULTS Among 22 metastatic tumours, thick and branching vessels were found in 17 (77%) and glomeruloid vessels in 13 (59%). These incidences of microvascular proliferation patterns were similar to those of glioblastomas or pilocytic astrocytomas. Vessel density, nuclear layer and vessel wall branches were significantly higher in metastatic tumours than malignant lymphomas, grade II gliomas or normal brain tissues. Glomeruloid vessels consisted of CD34-positive cells and α-SMA-positive cells, and α-SMA-positive cells had a low h-CD expression. These immunohistochemical patterns were similar to those of high-grade gliomas. CONCLUSIONS The vascular features of metastatic brain tumours are similar to those of glioblastomas, suggesting that these microvascular proliferations contribute to the progression of metastatic tumours.
Collapse
Affiliation(s)
- T Gi
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Y Sato
- Department of Diagnostic Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - T Tokumitsu
- Department of Diagnostic Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - A Yamashita
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - S Moriguchi-Goto
- Department of Diagnostic Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - H Takeshima
- Department of Neurosurgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - S Sato
- Department of Medical Technology and Sciences, International University of Health and Welfare, Fukuoka, Japan
| | - Y Asada
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| |
Collapse
|
27
|
Nakanishi K, Yamashita A, Miyamoto T, Takeguch R, Furuya A, Matsuo K, Tanahashi Y, Kawamura M, Sengoku K. P450 oxidoreductase deficiency with maternal virilization during pregnancy. CLIN EXP OBSTET GYN 2016. [DOI: 10.12891/ceog3172.2016] [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] [Indexed: 11/01/2022]
|
28
|
Tokumitsu T, Sato Y, Yamashita A, Moriguchi-Goto S, Kondo K, Nanashima A, Asada Y. Immunocytochemistry for Claudin-18 and Maspin in biliary brushing cytology increases the accuracy of diagnosing pancreatobiliary malignancies. Cytopathology 2016; 28:116-121. [PMID: 27527114 DOI: 10.1111/cyt.12368] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 05/16/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Biliary brush cytology is an important diagnostic tool in the evaluation of pancreatobiliary malignancies. However, it is difficult to distinguish between malignant and benign cells. The present study evaluated the utility of immunocytochemical expression of Claudin-18 and Maspin in brushing cytology specimens of pancreatobiliary lesions in the diagnosis of pancreatobiliary malignancies. METHODS The study retrospectively assessed biliary and pancreatic duct brushing cytology specimens of 43 patients whose pancreatobiliary lesions were histologically diagnosed at the University of Miyazaki Hospital. Scanty cellularity slides and cases with no histological confirmation were excluded. Alcohol-fixed and Papanicolaou-stained slides were immunostained with monoclonal antibodies to Claudin-18 and Maspin. RESULTS Of the 43 patients, 35 (81.4%) were finally histologically diagnosed with invasive adenocarcinomas. The sensitivity of routine cytology for the detection of malignancy was 63%, and the specificity was 100%. The sensitivity of cytology in combination with immunocytochemical expression of Claudin-18 (89%) or Claudin-18 and/or Maspin (97%) was significantly higher than that of cytology alone (P < 0.01). CONCLUSION Immunocytochemical staining for Claudin-18 and Maspin improved the diagnostic sensitivity for pancreatobiliary adenocarcinomas.
Collapse
Affiliation(s)
- T Tokumitsu
- Division of Pathology, Faculty of Medicine, University of Miyazaki Hospital, Miyazaki, Japan
| | - Y Sato
- Division of Pathology, Faculty of Medicine, University of Miyazaki Hospital, Miyazaki, Japan.,Department of Diagnostic Pathology, Faculty of Medicine, University of Miyazaki Hospital, Miyazaki, Japan
| | - A Yamashita
- Department of Pathology, Faculty of Medicine, Miyazaki, Japan
| | - S Moriguchi-Goto
- Division of Pathology, Faculty of Medicine, University of Miyazaki Hospital, Miyazaki, Japan.,Department of Diagnostic Pathology, Faculty of Medicine, University of Miyazaki Hospital, Miyazaki, Japan
| | - K Kondo
- Community Medical Center, Faculty of Medicine, Miyazaki, Japan
| | - A Nanashima
- Division of Hepato-Biliary-Pancreas Surgery, Department of Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Y Asada
- Department of Pathology, Faculty of Medicine, Miyazaki, Japan
| |
Collapse
|
29
|
Li ZY, Yamashita A, Kawashita N, Sasaki T, Pan Y, Ono KI, Ikuta K, Li YG. Characterization of two anti-dengue human monoclonal antibodies prepared from PBMCs of patients with dengue illness in Thailand. Acta Virol 2016; 60:166-73. [PMID: 27265466 DOI: 10.4149/av_2016_02_166] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The global spread of the four dengue virus (DENV) serotypes (dengue-1 to -4) has made this virus a major and growing public health concern. Generally, pre-existing neutralizing antibodies derived from primary infection play a significant role in protecting against subsequent infection with the same serotype. By contrast, these pre-existing antibodies are believed to mediate a non-protective response to subsequent heterotypic DENV infections, leading to the onset of dengue illness. In this study, two monoclonal antibodies prepared by using peripheral blood mononuclear cells (PBMCs) from patients with dengue fever were characterized. Epitope mapping revealed that amino acid residues 254-278 in domain II of the viral envelope protein E were the target region of these antibodies. A database search revealed that certain sequences in this epitope region showed high conservation among the four serotypes of DENV. These two human monoclonal antibodies could neutralize DENV-2,-4 more effectively than DENV-1,-3. The amino acid sequences could not explain this difference in neutralizing activity. However, the 3D structure results showed that amino acid 274 could be the critical residue for the difference in neutralization. These results may provide basic information for the development of a dengue vaccine.
Collapse
|
30
|
Tamura K, Wakui H, Azushima K, Uneda K, Haku S, Kobayashi R, Ohki K, Haruhara K, Kinguchi S, Matsuda M, Yamashita A, Umemura S. Angiotensin II Type 1 Receptor Binding Molecule ATRAP as a Possible Modulator of Renal Sodium Handling and Blood Pressure in Pathophysiology. Curr Med Chem 2016; 22:3210-6. [PMID: 26295465 DOI: 10.2174/0929867322666150821095036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 08/19/2015] [Accepted: 08/20/2015] [Indexed: 11/22/2022]
Abstract
Exaggerated activation of the renin-angiotensin system via tissue angiotensin II (Ang II) type 1 receptor (AT1R) signaling exerts detrimental effects on cardiovascular, renal and endocrine systems to provoke hypertension and related target organ damage. On the other hand, accumulated research evidence of both basic and clinical studies shows that physiological AT1R signaling also plays an indispensable role for the normal organ development such as the kidney and the maintenance of cardiovascular and renal homeostasis. Such functional diversity of AT1R signaling prompts us to seek a new strategy of selective modulation of AT1R signaling in pathophysiology. In the course of an investigational search for a means to functionally and selectively modulate AT1R signaling for that purpose, a molecule directly interacting with the carboxyl-terminal cytoplasmic domain of AT1R was identified by employing yeast two-hybrid screening of a mouse kidney cDNA library and named AT1R-associated protein (ATRAP). The results of functional analysis showed that ATRAP promotes constitutive AT1R internalization in cultured cells and inhibits Ang II-mediated pathological response in mouse distal convoluted cells. The ATRAP is expressed in a variety of tissues including the kidney where ATRAP is abundantly distributed in epithelial cells along the renal tubules. The results employing genetic engineered mice with modified ATRAP expression showed that ATRAP plays a key role in the regulation of renal sodium handling and the modulation of blood pressure in response to pathological stimuli such as chronic Ang II infusion, and suggest ATRAP to be a target of interest.
Collapse
Affiliation(s)
- K Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Oda T, Okamura T, Miyazaki Y, Nakamura T, Mikamo A, Wada Y, Yamashita A, Takahashi M, Hayashida K, Hamano K, Yano M. 1-Year Follow-Up of Contained Aortic Root Rupture After Transcatheter Aortic Valve Replacement. JACC Cardiovasc Interv 2016; 9:295-296. [PMID: 26777328 DOI: 10.1016/j.jcin.2015.10.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/08/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Tetsuro Oda
- Department of Medicine and Clinical Science, Division of Cardiology, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Takayuki Okamura
- Department of Medicine and Clinical Science, Division of Cardiology, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan.
| | - Yosuke Miyazaki
- Department of Medicine and Clinical Science, Division of Cardiology, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Takeshi Nakamura
- Department of Medicine and Clinical Science, Division of Cardiology, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Akihito Mikamo
- Department of Surgery and Clinical Science, Division of Cardiac Surgery, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yasuaki Wada
- Department of Medicine and Clinical Science, Division of Cardiology, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Atsuo Yamashita
- Department of Anesthesiology, School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masaya Takahashi
- Department of Surgery and Clinical Science, Division of Cardiac Surgery, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Kentaro Hayashida
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Kimikazu Hamano
- Department of Surgery and Clinical Science, Division of Cardiac Surgery, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masafumi Yano
- Department of Medicine and Clinical Science, Division of Cardiology, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| |
Collapse
|
32
|
Nakanishi K, Yamashita A, Miyamoto T, Takeguchi R, Furuya A, Matsuo K, Tanahashi Y, Kawamura M, Sengoku K. P450 oxidoreductase deficiency with maternal virilization during pregnancy. CLIN EXP OBSTET GYN 2016; 43:902-904. [PMID: 29944250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE The authors report on a rare case of maternal virilization during pregnancy caused by autosomal recessive P450 oxidore- ductase (POR) deficiency. MATERIALS AND METHODS A 24-year-old primigravida developed a deepening voice and hirsutism in the second trimester. Prenatal ultrasonography failed to detect any fetal abnormality and fetal growth was normal. POR deficiency was suspected, but the mother declined fetal genetic testing. A female neonate was delivered by cesarean section at 41 weeks' gestation. RESULTS The neonate had skeletal abnormalities. Mutational analysis of the POR gene demonstrated homozygosity for c.1370 G>A and p.R457H in the patient and heterozygosity in her parents. POR deficiency was confirmed in the neonate. CONCLUSION POR deficiency should be suspected in cases of maternal virilization. Maternal urinary estriol, fetal magnetic resonance imaging, and parental genetic testing should be performed. Parental consent for fetal genetic testing should be sought to ensure prompt diagnosis and early treatment.
Collapse
|
33
|
Niihara M, Tsubosa Y, Yamashita A, Tsumaki H, Ishikawa H, Nagata N, Onozawa Y, Fukuda H. SUN-PP136: Changes in Body Weight and Body Mass Index After Esophagectomy. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30286-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
34
|
Utada K, Ishida K, Tohyama S, Urushima Y, Mizukami Y, Yamashita A, Uchida M, Matsumoto M. The combination of insulin-like growth factor 1 and erythropoietin protects against ischemic spinal cord injury in rabbits. J Anesth 2015; 29:741-8. [PMID: 26003536 DOI: 10.1007/s00540-015-2031-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 05/05/2015] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Insulin-like growth factor 1 (IGF-1) and erythropoietin (EPO) have been reported to independently protect against ischemic spinal cord injury in rabbits. In the present study, we investigated whether the combination of IGF-1 and EPO protects against ischemic spinal cord injury in rabbits. METHODS Animals were assigned to 1 of 4 groups (n = 6 in each): a control group (saline), an IGF-1 group (IGF-1 0.3 mg/kg), an EPO group (EPO 800 U/kg), or an IGF-1 + EPO group (IGF-1 0.3 mg/kg + EPO 800 U/kg). Spinal cord ischemia was produced by occluding the abdominal aorta for 15 min. Saline, IGF-1, and EPO were administered intravenously just after the start of reperfusion. Hindlimb motor function was assessed daily for 7 days, after which histopathological evaluation was performed. To analyze phosphorylation of signal transduction molecules, animals were assigned to 1 of the 4 groups (n = 8 in each). Spinal cord ischemia and the treatment were the same as those described above. The spinal cords were removed at 15 or 30 min after reperfusion and used to analyze phosphorylation of signal transduction molecules. Four animals served as the preischemic control, and the spinal cord was removed just before the start of ischemia. RESULTS In the IGF-1 + EPO group, both neurological and histopathological outcomes were significantly improved as compared to the control group, which was consistent with the increase of Janus kinase-2 (JAK2) phosphorylation. CONCLUSIONS The combination of IGF-1 and EPO protects against ischemic spinal cord injury in rabbits. JAK2 might contribute to the protective effect.
Collapse
Affiliation(s)
- Kohji Utada
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Kazuyoshi Ishida
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Suguru Tohyama
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Yutaka Urushima
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Yoichi Mizukami
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Masato Uchida
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Mishiya Matsumoto
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| |
Collapse
|
35
|
Arimoto T, Kawana K, Adachi K, Ikeda Y, Nagasaka K, Tsuruga T, Yamashita A, Oda K, Ishikawa M, Kasamatsu T, Onda T, Konishi I, Yoshikawa H, Yaegashi N. Minimization of curative surgery for treatment of early cervical cancer: a review. Jpn J Clin Oncol 2015; 45:611-6. [DOI: 10.1093/jjco/hyv048] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/10/2015] [Indexed: 11/14/2022] Open
|
36
|
Ishida K, Yamashita A, Uchida M, Matsumoto M. [Development of postoperative cognitive dysfunction following major vascular surgery]. Masui 2014; 63:1211-1218. [PMID: 25731052] [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
The development of postoperative cognitive dysfunction (POCD) is a devastating complication, leading to a poor postoperative quality of life. Even though the number of patients undergoing major vascular surgery has increased, the development of POCD has not been well evaluated in these patients compared with patients undergoing coronary artery bypass graft surgery (CABG). According to previous reports, more patients undergoing major vascular surgery by deep circulatory arrest or retrograde cerebral perfusion, and an equal or even larger number of patients undergoing surgery by selective cerebral perfusion, seem to develop POCD when compared with patients after CABG. However, only a small numbers of patients have been assessed and the timing of evaluating POCD has varied in previous studies. Well-organized studies with a sufficient number of cases and systematic post-operative evaluation of POCD are necessary.
Collapse
|
37
|
Tachibana K, Higami T, Miyaki Y, Hagiwara T, Yamashita A, Takagi N. 136 * IMPACT OF SEQUENTIAL BYPASS GRAFTING WITH FULL SKELETONISED IN-SITU ARTERIAL GRAFTS. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.136] [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
|
38
|
Iwakiri T, Matsuura Y, Yamashita A, Uezono S, Hisanaga S, Tokura T, Kitamura K, Asada Y, Fujimoto S. Serum C-reactive protein reflects the proportions of cellular crescent formation and glomerulosclerosis in patients with microscopic polyangiitis. Presse Med 2013. [DOI: 10.1016/j.lpm.2013.02.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
39
|
Shindo H, Maekawa S, Komase K, Miura M, Kadokura M, Sueki R, Komatsu N, Shindo K, Amemiya F, Nakayama Y, Inoue T, Sakamoto M, Yamashita A, Moriishi K, Enomoto N. IL-28B (IFN-λ3) and IFN-α synergistically inhibit HCV replication. J Viral Hepat 2013; 20:281-9. [PMID: 23490373 DOI: 10.1111/j.1365-2893.2012.01649.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 06/07/2012] [Indexed: 01/09/2023]
Abstract
Genetic variation in the IL-28B (interleukin-28B; interferon lambda 3) region has been associated with sustained virological response (SVR) rates in patients with chronic hepatitis C treated with peginterferon-α and ribavirin. However, the mechanisms by which polymorphisms in the IL-28B gene region affect host antiviral responses are not well understood. Using the HCV 1b and 2a replicon system, we compared the effects of IFN-λs and IFN-α on HCV RNA replication. The anti-HCV effect of IFN-λ3 and IFN-α in combination was also assessed. Changes in gene expression induced by IFN-λ3 and IFN-α were compared using cDNA microarray analysis. IFN-λs at concentrations of 1 ng/mL or more exhibited concentration- and time-dependent HCV inhibition. In combination, IFN-λ3 and IFN-α had a synergistic anti-HCV effect; however, no synergistic enhancement was observed for interferon-stimulated response element (ISRE) activity or upregulation of interferon-stimulated genes (ISGs). With respect to the time course of ISG upregulation, the peak of IFN-λ3-induced gene expression occurred later and lasted longer than that induced by IFN-α. In addition, although the genes upregulated by IFN-α and IFN-λ3 were similar to microarray analysis, interferon-stimulated gene expression appeared early and was prolonged by combined administration of these two IFNs. In conclusion, IFN-α and IFN-λ3 in combination showed synergistic anti-HCV activity in vitro. Differences in time-dependent upregulation of these genes might contribute to the synergistic antiviral activity.
Collapse
Affiliation(s)
- H Shindo
- First Department of Internal Medicine, University of Yamanashi, Yamanashi, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Yonehiro J, Yoshida Y, Yamashita A, Yoshizawa S, Ohta K, Kamata N, Okihara T, Nishimura F. Flavonol-containing phosphorylated pullulan may attenuate pulp inflammation. Int Endod J 2012; 46:119-27. [DOI: 10.1111/j.1365-2591.2012.02095.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Accepted: 06/01/2012] [Indexed: 01/09/2023]
Affiliation(s)
- J. Yonehiro
- Department of Dental Science for Health Promotion; Hiroshima University Graduate School of Biomedical Sciences; Hiroshima Japan
| | - Y. Yoshida
- Department of Biomaterials; Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences; Okayama Japan
| | - A. Yamashita
- Department of Dental Science for Health Promotion; Hiroshima University Graduate School of Biomedical Sciences; Hiroshima Japan
| | - S. Yoshizawa
- Center for Craniofacial Regeneration; Department of Oral Biology; School of Dental Medicine; University of Pittsburgh; Pittsburg PA USA
| | - K. Ohta
- Department of Oral Surgery; Hiroshima University Graduate School of Biomedical Science; Hiroshima Japan
| | - N. Kamata
- Department of Oral Surgery; Hiroshima University Graduate School of Biomedical Science; Hiroshima Japan
| | - T. Okihara
- Department of Material Chemistry; Okayama University Graduate School of Natural Science and Technology; Okayama Japan
| | - F. Nishimura
- Department of Dental Science for Health Promotion; Hiroshima University Graduate School of Biomedical Sciences; Hiroshima Japan
| |
Collapse
|
41
|
Yonehiro J, Yamashita A, Yoshida Y, Yoshizawa S, Ohta K, Kamata N, Okihara T, Nishimura F. Establishment of anex vivopulpitis model by co-culturing immortalized dental pulp cells and macrophages. Int Endod J 2012; 45:1103-8. [DOI: 10.1111/j.1365-2591.2012.02074.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
42
|
Yamashita A, Matsumoto M. [Risk management in spinal anesthesia]. Masui 2011; 60:1275-1283. [PMID: 22175167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
More than one hundred years have passed since Bier first succeeded in spinal anesthesia. Spinal anesthesia now spreads all over the world because it has many advantages. Spinal anesthesia requires both a simple technique and a small volume of drug, produces profound analgesia, and is devoid of systemic pharmacologic side effects. However, several complications after spinal anesthesia have been reported. Although some of them rarely occur, they cause serious consequences once they happen. Those include cardiac arrest, meningitis, intracranial subdural hematoma, spinal epidural hematoma and cauda equina syndrome. Patients should be informed in detail of the incidence, severity, and outcome of these complications, especially when alternative analgesic methods can be chosen. The prediction, early detection and prompt start of the treatment of the complications after spinal anesthesia are important to minimize the risk of adverse outcome.
Collapse
MESH Headings
- Anaphylaxis/epidemiology
- Anaphylaxis/etiology
- Anaphylaxis/prevention & control
- Anesthesia, Spinal/adverse effects
- Anesthesia, Spinal/methods
- Heart Arrest/epidemiology
- Heart Arrest/etiology
- Heart Arrest/prevention & control
- Hematoma, Epidural, Spinal/epidemiology
- Hematoma, Epidural, Spinal/etiology
- Hematoma, Epidural, Spinal/prevention & control
- Hematoma, Subdural, Intracranial/epidemiology
- Hematoma, Subdural, Intracranial/etiology
- Hematoma, Subdural, Intracranial/prevention & control
- Humans
- Informed Consent
- Intraoperative Complications/epidemiology
- Intraoperative Complications/etiology
- Intraoperative Complications/prevention & control
- Meningitis/epidemiology
- Meningitis/etiology
- Meningitis/prevention & control
- Polyradiculopathy/epidemiology
- Polyradiculopathy/etiology
- Polyradiculopathy/prevention & control
- Postoperative Complications/epidemiology
- Postoperative Complications/etiology
- Postoperative Complications/prevention & control
- Risk Factors
- Risk Management
- Spinal Cord Injuries/epidemiology
- Spinal Cord Injuries/etiology
- Spinal Cord Injuries/prevention & control
Collapse
Affiliation(s)
- Atsuo Yamashita
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Ube 755-8505
| | | |
Collapse
|
43
|
Matsuda S, Yamashita A, Sato Y, Kitajima S, Koike T, Sugita C, Moriguchi-Goto S, Hatakeyama K, Takahashi M, Koshimoto C, Matsuura Y, Iwakiri T, Chen YE, Fan J, Asada Y. Human C-reactive protein enhances thrombus formation after neointimal balloon injury in transgenic rabbits. J Thromb Haemost 2011; 9:201-8. [PMID: 21029360 DOI: 10.1111/j.1538-7836.2010.04086.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND High plasma levels of C-reactive protein (CRP) constitute a powerful predictive marker of cardiovascular events. Several lines of evidence suggest that CRP has prothrombogenic effects. However, whether CRP directly participates in the pathogenesis of thrombosis in vivo has not been fully clarified. OBJECTIVE To test whether human CRP (hCRP) affects arterial thrombus formation after balloon injury of smooth muscle cell (SMC)-rich or macrophage-rich neointima. METHODS We compared the susceptibility of transgenic (Tg) rabbits expressing hCRP (46.21 ± 13.85 mg L(-1), n = 22) and non-Tg rabbits to arterial thrombus formation after balloon injury of SMC-rich or macrophage-rich neointima. RESULTS Thrombus size on SMC-rich or macrophage-rich neointima was significantly increased, and was accompanied by an increase in fibrin content in hCRP-Tg rabbits, as compared with non-Tg rabbits. Thrombus size did not significantly differ between SMC-rich and macrophage-rich neointima in hCRP-Tg rabbits. Tissue factor (TF) mRNA expression and activity in these neointimal lesions were significantly increased in hCRP-Tg rabbits as compared with non-Tg rabbits. The degree of CRP deposition correlated with the elevated TF expression and thrombus size on injured neointima. In addition, hCRP isolated from hCRP-Tg rabbit plasma induced TF mRNA expression and activity in rabbit cultured vascular SMCs. CONCLUSIONS These results suggest that elevated plasma hCRP levels promote thrombus formation on injured SMC-rich neointima by enhancing TF expression, but have no additive effects in macrophage-rich neointima.
Collapse
MESH Headings
- Animals
- Animals, Genetically Modified
- C-Reactive Protein/genetics
- C-Reactive Protein/metabolism
- Catheterization
- Cell Proliferation
- Cells, Cultured
- Disease Models, Animal
- Femoral Artery/injuries
- Femoral Artery/metabolism
- Femoral Artery/pathology
- Humans
- Hyperlipidemias/genetics
- Hyperlipidemias/metabolism
- Macrophages/metabolism
- Male
- Muscle, Smooth, Vascular/injuries
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- RNA, Messenger/metabolism
- Rabbits
- Thromboplastin/genetics
- Thrombosis/blood
- Thrombosis/genetics
- Thrombosis/metabolism
- Thrombosis/pathology
- Time Factors
- Tunica Intima/injuries
- Tunica Intima/metabolism
- Tunica Intima/pathology
- Up-Regulation
- Vascular System Injuries/blood
- Vascular System Injuries/genetics
- Vascular System Injuries/metabolism
- Vascular System Injuries/pathology
Collapse
Affiliation(s)
- S Matsuda
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Lira FS, Yamashita A, Carnevali LC, Gonçalves DC, Lima WP, Rosa JC, Caperuto EC, Rosa LFC, Seelaender M. Exercise training reduces PGE2 levels and induces recovery from steatosis in tumor-bearing rats. Horm Metab Res 2010; 42:944-9. [PMID: 21064006 DOI: 10.1055/s-0030-1267949] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The effects of endurance training on PGE (2) levels and upon the maximal activity of hepatic carnitine palmitoyltransferase (CPT) system were studied in rats bearing the Walker 256 carciosarcoma. Animals were randomly assigned to a sedentary control (SC), sedentary tumor-bearing (ST), exercised control (EC), and as an exercised tumor-bearing (ET) group. Trained rats ran on a treadmill (60% VO (2) max) for 60 min/day, 5 days/week, for 8 weeks. We examined the mRNA expression (RT-PCR) and maximal activity (radioassay) of the carnitine palmitoyltransferase system enzymes (CPT I and CPT II), as well as the gene expression of fatty-acid-binding protein (L-FABP) in the liver. PGE (2) content was measured in the serum, in tumor cells, and in the liver (ELISA). CPT I and CPT II maximal activity were decreased (p<0.01) in ST when compared with SC. In contrast, serum PGE (2) was increased (p<0.05) in cachectic animals as compared with SC. In the liver, PGE (2) content was also increased (p<0.05) when compared with SC. Endurance training restored maximal CPT I and CPT II activity in the tumor-bearing animals (p<0.0001). Exercise training induced PGE (2) levels to return to control values in the liver of tumor-bearing training rats (p<0.05) and decreased the eicosanoid content in the tumor (p<0.01). In conclusion, endurance training was capable of reestablishing liver carnitine palmitoyltransferase (CPT) system activity associated with decreased PGE (2) levels in cachectic tumor-bearing animals, preventing steatosis.
Collapse
Affiliation(s)
- F S Lira
- Cancer Metabolism Research Group, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Sumi T, Yamashita A, Matsuda S, Goto S, Nishihira K, Furukoji E, Sugimura H, Kawahara H, Imamura T, Kitamura K, Tamura S, Asada Y. Disturbed blood flow induces erosive injury to smooth muscle cell-rich neointima and promotes thrombus formation in rabbit femoral arteries. J Thromb Haemost 2010; 8:1394-402. [PMID: 20230423 DOI: 10.1111/j.1538-7836.2010.03843.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Plaque erosion is a cause of atherothrombosis that preferentially occurs on smooth muscle cell (SMC)- and proteoglycan-rich rather than lipid-rich plaques. However, its underlying mechanisms remain unknown. OBJECTIVE To determine whether disturbed blood flow induces erosive injury and thrombus formation on SMC-rich neointima. METHODS Three weeks after balloon injury, SMC-rich neointima with increased tissue factor (TF) activity developed in rabbit femoral arteries that were narrowed with a vascular occluder to disturb blood flow after stenosis. Neointimal injury and thrombus formation were assessed at 15, 30, and 180 min after the vascular narrowing. RESULTS Endothelial detachment, platelet adhesion and neointimal cell apoptosis became evident at the post-stenotic regions of all femoral arteries (n = 5) within 15 min of narrowing. Mural thrombi composed of platelet and fibrin developed after 30 min, and then occlusive thrombi were generated in three out of five vessels after 180 min. The identical vascular narrowing of normal femoral arteries also induced endothelial detachment with small platelet thrombi at post-stenotic regions, but fibrin and occlusive thrombi did not develop. Computational simulation analysis indicated that oscillatory shear stress contributes to the development of erosive damage to the neointima. CONCLUSIONS These results suggest that disturbed post-stenotic blood flow can induce erosive injury in SMC-rich plaques and promote thrombus formation that results in vascular events.
Collapse
Affiliation(s)
- T Sumi
- Department of Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Harada K, Ishida K, Yamashita A, Yoshimura M, Matsumoto M, Sakabe T. [Hypertension and tachycardia during endoscopic radial artery harvesting in two patients undergoing coronary artery bypass grafting]. Masui 2009; 58:745-748. [PMID: 19522268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Hypertension and tachycardia occurred during endoscopic radial artery harvesting in two patients undergoing coronary artery bypass grafting. Despite anesthesia maintained with moderate doses of fentanyl and isoflurane, hypertension and tachycardia occurred 10-15 min after tourniquet application and graft harvesting procedure. Tourniquet pain or direct stimulation to radial nerve by CO2 insufflation might be the causes. Although endoscopic radial artery harvesting is reported excellent for cosmetics with low incidence of complications such as infection and hematoma, hemodynamic change can occur during harvesting. Careful evaluation and management of hemodynamic changes should be exercised during this procedure in the patient with unstable angina and low cardiac function.
Collapse
Affiliation(s)
- Kaori Harada
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Ube
| | | | | | | | | | | |
Collapse
|
47
|
Shirasawa Y, Matsumoto M, Yoshimura M, Yamashita A, Fukuda S, Ishida K, Sakabe T. Does high-dose opioid anesthesia exacerbate ischemic spinal cord injury in rabbits? J Anesth 2009; 23:242-8. [PMID: 19444564 DOI: 10.1007/s00540-009-0741-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Accepted: 01/19/2009] [Indexed: 01/01/2023]
Abstract
PURPOSE Intrathecal morphine given during a post-ischemic period has been reported to have the potential to exacerbate ischemic spinal cord injury. However, it remains unknown whether synthetic opioids administered systemically exacerbate ischemic injury. We sought to compare the damage of the spinal cord after transient spinal cord ischemia in rabbits anesthetized with three different regimens; isoflurane, fentanyl with isoflurane, and remifentanil with isoflurane. METHODS We assigned rabbits to three groups (n = 9 in each); an isoflurane group (isoflurane 1 minimum alveolar concentration [MAC]), a fentanyl group (isoflurane 0.5 MAC + 100 microg x kg(-1) i.v. fentanyl given over 30 min before aortic occlusion), and a remifentanil group (isoflurane 0.5 MAC + 1 microg x kg(-1) x min(-1) i.v. remifentanil started 30 min before aortic occlusion and maintained until 1 h after reperfusion). Spinal cord ischemia was produced by occluding the abdominal aorta for 13 min. Hindlimb motor function (score range: 4, normal to 0, paraplegia) was assessed daily for 7 days, and then the number of normal neurons in the anterior spinal cord was counted. RESULTS Severe motor dysfunction (score < or = 1) was observed in seven, four, and five animals in the isoflurane, fentanyl, and remifentanil groups, respectively. There were no significant intergroup differences in neurological scores. There were no differences in the numbers of normal neurons among the three groups (22 +/- 22, 42 +/- 30, 33 +/- 28, respectively). CONCLUSION Our results suggest that neither i.v. fentanyl nor i.v. remifentanil added to 0.5 MAC isoflurane exacerbated ischemic spinal cord injury in rabbits when compared to 1 MAC isoflurane.
Collapse
Affiliation(s)
- Yumiko Shirasawa
- Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, 755-8505, Japan
| | | | | | | | | | | | | |
Collapse
|
48
|
Oka S, Toshida T, Maruyama K, Nakajima K, Yamashita A, Sugiura T. 2-Arachidonoyl-sn-glycero-3-phosphoinositol: A Possible Natural Ligand for GPR55. J Biochem 2008; 145:13-20. [DOI: 10.1093/jb/mvn136] [Citation(s) in RCA: 142] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
49
|
Yamashita A, Soga Y, Iwamoto Y, Asano T, Li Y, Abiko Y, Nishimura F. DNA microarray analyses of genes expressed differentially in 3T3-L1 adipocytes co-cultured with murine macrophage cell line RAW264.7 in the presence of the toll-like receptor 4 ligand bacterial endotoxin. Int J Obes (Lond) 2008; 32:1725-9. [PMID: 18779827 DOI: 10.1038/ijo.2008.153] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Recent studies have suggested that macrophages were integrated into adipose tissues to interact with adipocytes, thereby exacerbating inflammatory responses. Furthermore, both adipocytes and macrophages appear to express toll-like receptor-4 (TLR-4), and free fatty acids may stimulate cells through TLR-4. Herein, we analyzed genes differentially expressed in adipocytes when co-cultured with macrophages in the presence of a ligand for TLR-4, bacterial lipopolysaccharide (LPS). RAW264.7, a murine macrophage cell line and differentiated 3T3-L1 adipocytes were co-cultured using a transwell system. Genes differentially expressed in adipocytes were analyzed by the DNA microarray method following 4, 8, 12 and 24 h stimulation with 1 ng ml(-1) of Escherichia coli LPS. Randomly selected genes with high expressions were confirmed by quantitative methods at both the gene and the protein level. Co-culture of macrophages and adipocytes with a low LPS concentration (1 ng ml(-1)) markedly upregulated gene expressions associated with inflammation and/or angiogenesis, such as those of interleukin-6 (IL-6), MCP-1, RANTES and CXCL1/KC, in adipocytes. Furthermore, several genes associated with insulin resistance were differentially expressed. Upregulations of genes encoding MCP-1, RANTES and CXC/KC were confirmed by quantitative methods. These results suggest that ligands for TLR-4 stimulate both adipocytes and macrophages to upregulate the expressions of many genes associated with inflammation and/or angiogenesis.
Collapse
Affiliation(s)
- A Yamashita
- Department of Dental Science for Health Promotion, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima, Japan
| | | | | | | | | | | | | |
Collapse
|
50
|
Miyaura K, Morita M, Matsuka Y, Yamashita A, Watanabe T. Rehabilitation of biting abilities in patients with different types of dental prostheses. J Oral Rehabil 2008. [DOI: 10.1111/j.1365-2842.2000.00620.x] [Citation(s) in RCA: 2] [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: 10/19/2022]
|