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Koike S, Shiina T, Takasuna K, Kato A, Atagi T, Nakamura T. A very rare case of spontaneous regression of basaloid squamous cell carcinoma of the lung. Thorac Cancer 2024; 15:500-502. [PMID: 38217382 PMCID: PMC10883853 DOI: 10.1111/1759-7714.15217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/26/2023] [Accepted: 12/26/2023] [Indexed: 01/15/2024] Open
Abstract
Spontaneous regression of non-small cell lung cancer is relatively rare. Here, we present a very rare case of spontaneous regression of lung cancer which occurred in a patient with basaloid squamous cell lung cancer. To the best of our knowledge, this is the first report of such a case. A 76-year old man was referred to our hospital with nodules in the right upper lobe determined by chest computed tomography. The nodules spontaneously regressed during follow-up. Two years later, the tumor had regrown and the patient subsequently underwent surgery. The pathological findings showed basaloid squamous cell carcinoma. Stimulation of the immune system was considered to be the cause of the spontaneous regression and CD-8 positive and CD-4 positive lymphocytes might play an important role.
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Affiliation(s)
- Sachie Koike
- Department of Thoracic SurgeryIna Central HospitalNaganoJapan
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Takayuki Shiina
- Department of Thoracic SurgeryIna Central HospitalNaganoJapan
| | | | - Akane Kato
- Department of RespirologyIna Central HospitalNaganoJapan
| | - Takuma Atagi
- Department of RespirologyIna Central HospitalNaganoJapan
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2
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Koike S, Kobayashi N, Miyazawa M, Yamashita N. Rapid progressive spontaneous hemothorax caused by carcinoma of unknown primary: A very rare case. Respirol Case Rep 2023; 11:e01215. [PMID: 37711652 PMCID: PMC10497902 DOI: 10.1002/rcr2.1215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 08/31/2023] [Indexed: 09/16/2023] Open
Abstract
We present a very rare case of spontaneous hemothorax which was caused by carcinoma of unknown primary. To the best of our knowledge, there are no other such cases reported worldwide. The patient was 72-year-old male who was referred to our department for massive hemothorax. We undertook surgical treatment for haemostasis, and found multiple tumours which led to the diagnosis of carcinoma of unknown primary as the cause of haemorrhage. The tumours increased and grew rapidly after surgery and hemothorax progressed despite our treatment. The patient died from disseminated intravascular coagulation caused by continuous bleeding on postoperative day 19.
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Affiliation(s)
- Sachie Koike
- Department of Thoracic SurgeryJapanese Red Cross Society Nagano hospitalNaganoJapan
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineMatsumotoJapan
| | - Nobutaka Kobayashi
- Department of Thoracic SurgeryJapanese Red Cross Society Nagano hospitalNaganoJapan
| | - Masahisa Miyazawa
- Department of Thoracic SurgeryJapanese Red Cross Society Nagano hospitalNaganoJapan
| | - Naho Yamashita
- Department of pathologyJapanese Red Cross Society Nagano hospitalNaganoJapan
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3
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Koike S, Kobayashi N, Miyazawa M. Intraoperative control of air leak using a sutureless free pericardial fat pad covering method in lung cancer resection. Thorac Cancer 2023; 14:2627-2630. [PMID: 37562407 PMCID: PMC10481144 DOI: 10.1111/1759-7714.15065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/12/2023] Open
Abstract
Here, we introduce a new method for intraoperative control of air leak using a free pericardial fat pad covering to lung damage with sutureless fixation. We covered the damaged lung tissue with a free pericardial fat pad with a polyglycol acid sheet and fibrin glue fixation. This method provides a good air leak controlling effect with the use of a free pericardial fat pad and relatively short operative time with sutureless fixation.
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Affiliation(s)
- Sachie Koike
- Department of Thoracic SurgeryJapanese Red Cross Society Nagano HospitalNaganoJapan
- Division of General Thoracic SurgeryDepartment of Surgery, Shinshu University School of MedicineMatsumotoNaganoJapan
| | - Nobutaka Kobayashi
- Department of Thoracic SurgeryJapanese Red Cross Society Nagano HospitalNaganoJapan
| | - Masahisa Miyazawa
- Department of Thoracic SurgeryJapanese Red Cross Society Nagano HospitalNaganoJapan
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Koike S, Kobayashi N, Miyazawa M. Positive outcome of diaphragm covering and total pleural covering techniques for catamenial pneumothorax. J Surg Case Rep 2023; 2023:rjad421. [PMID: 37485494 PMCID: PMC10359181 DOI: 10.1093/jscr/rjad421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 07/03/2023] [Indexed: 07/25/2023] Open
Abstract
Catamenial pneumothorax (CP) is reported to be caused by the endometriosis of diaphragm, lung and parietal pleura. Therefore, the resection of endometriotic lesion in these organs is reported as effective surgical treatment. Overlooking of endometrial tissues during the operation is believed to be the cause of recurrence after surgical treatment. To address this problem, we underwent total diaphragm covering (TDC) and total pleural covering with sheets of oxidized regenerated cellulose mesh. This report described two CP cases that underwent total diaphragm covering (TDC) and total pleural covering. Both patients were followed up for 1 year without recurrence.
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Affiliation(s)
- Sachie Koike
- Correspondence address. Department of Thoracic Surgery, Japanese Red Cross Society Nagano Hospital, 5-22-1, Wakasato, Nagano, Nagano 380-8582, Japan. Tel/Fax: 026-226-4131; E-mail:
| | - Nobutaka Kobayashi
- Department of Thoracic Surgery, Japanese Red Cross Society Nagano Hospital, Nagano, Nagano, Japan
| | - Masahisa Miyazawa
- Department of Thoracic Surgery, Japanese Red Cross Society Nagano Hospital, Nagano, Nagano, Japan
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Soda T, Tashiro Y, Koike S, Ikeuchi R, Okada T. Evaluation of incidence, predictive factors and treatment considerations for asymptomatic genitourinary granulomas after intravesical bacillus Calmette-Guérin therapy. Actas Urol Esp 2023; 47:317-326. [PMID: 37272323 DOI: 10.1016/j.acuroe.2022.09.003] [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: 03/25/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 06/06/2023]
Abstract
INTRODUCTION AND OBJECTIVES Although the complications of intravesical BCG treatment are well described, asymptomatic genitourinary granulomas after BCG therapy have rarely been reported and management strategy for these conditions remains controversial. The objective of this study is to evaluate the incidence rate of asymptomatic genitourinary granuloma formation mimicking bladder cancer recurrence after intravesical bacillus Calmette-Guérin (BCG) therapy and to identify the diagnostic and treatment strategies according to patient conditions. PATIENTS AND METHODS A retrospective review was conducted on 162 patients who underwent intravesical BCG therapy. For patients who developed granulomas, we evaluated the time interval between BCG instillation and the development of granuloma, the presence of acid-fast bacteria on pathology specimens, culture/polymerase chain reaction results, management strategies for the lesions, and clinical outcomes. RESULTS Asymptomatic genitourinary masses developed in 14 patients, of whom 5 underwent histological examinations and all were confirmed to have granulomatous inflammation. The affected organs included the kidney, bladder, prostate, and penis. While four of the five patients did not receive treatment for their granulomas, one patient was administered antituberculous medication to prevent worsening of the lesion during the perioperative period of the scheduled cystoprostatectomy. None of the patients experienced worsening or recurrence of granulomatous lesions. Patients who developed asymptomatic masses (n = 14) were significantly younger than those who did not (p = 0.0076) and multivariate analysis also showed that younger age was independently associated with the development of clinically suspicious lesions (p = 0.032); however, none of the parameters were associated with histologically confirmed granuloma formation. CONCLUSIONS Genitourinary granulomas mimicking recurrence of carcinoma may develop in nearly 10% of patients after intravesical BCG therapy. Most patients can be managed without potentially toxic antituberculosis therapy.
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Affiliation(s)
- T Soda
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan.
| | - Y Tashiro
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
| | - S Koike
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
| | - R Ikeuchi
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
| | - T Okada
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
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6
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Koike S, Miyazawa M, Kobayashi N, Satomi H. Intrathoracic lipoma of chest wall misdiagnosed as liposarcoma with malignant features based on radiological image and intraoperative findings. J Surg Case Rep 2023; 2023:rjad046. [PMID: 36789374 PMCID: PMC9916697 DOI: 10.1093/jscr/rjad046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 01/24/2023] [Indexed: 02/12/2023] Open
Abstract
Lipomas are common benign tumors, which are usually located in the subcutaneous tissue. It is relatively rare for lipoma to occur in the intrathoracic cavity, and it is clinically difficult to distinguish it from liposarcoma. We present the case of a 72-year-old man with a chest wall tumor preoperatively diagnosed as liposarcoma, with tumor enlargement with radiological image change to heterogenous and 18F-fluorodeoxyglucose positron emission tomography uptake. The tumor was resected along the chest wall, lung and diaphragm because of dense adhesions. The tumor was diagnosed as lipoma with fat necrosis and inflammatory changes.
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Affiliation(s)
- Sachie Koike
- Department of Thoracic Surgery, Japanese Red Cross Society Nagano Hospital, Nagano, Nagano, Japan,Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Masahisa Miyazawa
- Correspondence address. Department of Thoracic Surgery, Japanese Red Cross Society Nagano hospital, 5-22-1, Wakasato, Nagano, Nagano 380-8582, Japan. Tel: +81-26-226-4131; E-mail:
| | - Nobutaka Kobayashi
- Department of Thoracic Surgery, Japanese Red Cross Society Nagano Hospital, Nagano, Nagano, Japan
| | - Hidetoshi Satomi
- Department of Pathology, Japanese Red Cross Society Nagano Hospital, Nagano, Nagano, Japan
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7
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Koike S, Shimizu K, Ide S, Mishima S, Matsuoka S, Takeda T, Miura K, Eguchi T, Hamanaka K, Araki T, Sonehara K, Todoroki K, Ichinohe F, Kawakami S, Koinuma M. Is using a consolidation tumor ratio 0.5 as criterion feasible in daily practice? Evaluation of interobserver measurement variability of consolidation tumor ratio of lung cancer less than 3 cm in size. Thorac Cancer 2022; 13:3018-3024. [PMID: 36193574 PMCID: PMC9626346 DOI: 10.1111/1759-7714.14653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Consolidation tumor ratio (CTR) calculated as the ratio of the tumor consolidation diameter to the tumor maximum diameter on thin-section computed tomography (CT) of lung cancer has been reported as an important prognostic factor. It has also been used for treatment decision-making. This study aimed to investigate the interobserver variability of CTR measurements on preoperative CT and propose a clinically useful CTR-based classification criterion. METHODS We enrolled 119 patients who underwent surgery for suspected or diagnosed small-sized lung cancer (≤3.0 cm in diameter). Nine doctors reviewed preoperative CT scans to measure CTR. Interobserver variability of CTR measurements was evaluated using the coefficient of variation (CV) and Fleiss' κ. The prognostic effect of the CTR-based classification was assessed using the Kaplan-Meier method. RESULTS Interobserver variability of CTR measurement was the highest for tumors with the lowest CTR (CTR = 0); it decreased as CTR increased and reached a plateaued level of low variability (CV <0.5) at CTR of 0.5. We proposed a three-group classification based on the findings of CTR interobserver variability (CTR < 0.5, 0.5 ≤ CTR < 1, and CTR = 1). Interobserver agreement of the judgment of the CTR-based classification was excellent (Fleiss' κ = 0.81). The classification significantly stratified patient prognosis (p < 0.001, 5-year overall survival rates with CTR < 0.5, 0.5 ≤ CTR < 1, and CTR = 1 were 100, 88, and 73.8%, respectively). CONCLUSIONS CTR 0.5 is a clinically relevant and helpful cutoff for treatment decision-making in patients with early-stage lung cancer based on high interobserver agreement and good prognostic stratification.
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Affiliation(s)
- Sachie Koike
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Shogo Ide
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Shuji Mishima
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Shunichiro Matsuoka
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Tetsu Takeda
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Kentaro Miura
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Takashi Eguchi
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Kazutoshi Hamanaka
- Division of General Thoracic Surgery, Department of SurgeryShinshu University School of MedicineNaganoJapan
| | - Taisuke Araki
- First Department of Internal MedicineShinshu University School of MedicineNaganoJapan
| | - Kei Sonehara
- First Department of Internal MedicineShinshu University School of MedicineNaganoJapan
| | - Keisuke Todoroki
- Department of RadiologyShinshu University School of MedicineNaganoJapan
| | - Fumihito Ichinohe
- Department of RadiologyShinshu University School of MedicineNaganoJapan
| | - Satoshi Kawakami
- Department of RadiologyShinshu University School of MedicineNaganoJapan
| | - Masayoshi Koinuma
- Faculty of Pharmaceutical SciencesTeikyo Heisei UniversityTokyoJapan,Center for Clinical ResearchShinshu University HospitalNaganoJapan
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8
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Matsuoka S, Shimizu K, Koike S, Takeda T, Miura K, Eguchi T, Hamanaka K. Significance of the evaluation of tracheal length using a three-dimensional imaging workstation. J Thorac Dis 2022; 14:4276-4284. [PMID: 36524079 PMCID: PMC9745505 DOI: 10.21037/jtd-22-595] [Citation(s) in RCA: 1] [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] [Received: 04/29/2022] [Accepted: 09/23/2022] [Indexed: 11/27/2023]
Abstract
BACKGROUND Limited information is available on the total tracheal length and its other characteristics for tracheal surgery. This study aimed to investigate the reference value of tracheal length and assess its relationship with physiological variables. METHODS We measured the tracheal length of 215 patients (107 men and 108 women) who underwent contrast-enhanced computed tomography before thoracic surgery using a three-dimensional imaging workstation. Pearson correlation analysis and multiple linear regression analysis were performed to investigate the relationship between the total tracheal length (cervical and thoracic) and common physiological parameters. RESULTS The mean total tracheal length was 11.5±1 cm (range, 8.8-14.4 cm); 8% of the patients had a total tracheal length <10 cm. The cervical trachea was significantly shorter in men than in women (2.9±1.3 vs. 3.8±1.3 cm, P<0.001), whereas the thoracic trachea was significantly longer in men than in women (8.9±1.1 vs. 7.4±1.1 cm, P<0.001). Correlation analysis showed that the total tracheal length was positively associated with height in both sexes, while the height was positively associated with only cervical tracheal length. In the multiple linear regression analysis, the total tracheal length was influenced most by height, while cervical and thoracic tracheal lengths were influenced most by sex. Older age was also an independent contributor to a shorter cervical trachea and longer thoracic trachea in both sexes. CONCLUSIONS The total tracheal length ranged from short to long in individuals, and characteristics of tracheal length varied with height, age, sex, and part of the trachea. We should thus be aware of the tracheal length of each patient for appropriate tracheal management.
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Affiliation(s)
- Shunichiro Matsuoka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Sachie Koike
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tetsu Takeda
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kentaro Miura
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takashi Eguchi
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kazutoshi Hamanaka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
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Soda T, Tashiro Y, Koike S, Ikeuchi R, Okada T. Evaluación de la incidencia, factores predictivos y consideraciones sobre el tratamiento de los granulomas genitourinarios asintomáticos después de la terapia intravesical con bacilo de Calmette-Guérin. Actas Urol Esp 2022. [DOI: 10.1016/j.acuro.2022.08.001] [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: 11/05/2022]
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10
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Koike S, Miyazawa M, Kobayashi N. Thoracoscopic resection of pulmonary sequestration with carbon dioxide insufflation and indocyanine green. Interact Cardiovasc Thorac Surg 2022; 35:6659515. [PMID: 35946720 PMCID: PMC9380781 DOI: 10.1093/icvts/ivac209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/06/2022] [Indexed: 11/21/2022] Open
Abstract
We encountered a rare case of pulmonary sequestration supplied from the right renal artery, which was resected by video-assisted thoracic surgery with carbon dioxide insufflation and indocyanine green-guided technique. A 41-year-old woman with intralobar pulmonary sequestration supplied from the right renal artery was referred to our department. At the time of surgery, we used carbon dioxide insufflation to improve the manoeuvrable workspace for shutting off aberrant arteries and indocyanine green fluorescence guidance to differentiate the boundary of the sequestered lung from the normal lung. These procedures helped in the efficient resection of the lesion.
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Affiliation(s)
- Sachie Koike
- Department of Thoracic Surgery, Japan Red Cross Society Nagano Hospital , Nagano, Japan
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine , Matsumoto, Japan
| | - Masahisa Miyazawa
- Department of Thoracic Surgery, Japan Red Cross Society Nagano Hospital , Nagano, Japan
| | - Nobutaka Kobayashi
- Department of Thoracic Surgery, Japan Red Cross Society Nagano Hospital , Nagano, Japan
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11
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Koike S, Eguchi T, Matsuoka S, Takeda T, Miura K, Shimizu K, Hamanaka K. Impact of counterclockwise rotation of the right middle lobe following right upper lobectomy. Interact Cardiovasc Thorac Surg 2022; 34:1062-1070. [PMID: 34922347 PMCID: PMC9159427 DOI: 10.1093/icvts/ivab356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 11/02/2021] [Accepted: 11/20/2021] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES Following right upper lobectomy, the right middle lobe may shift towards the apex and rotate in a counterclockwise direction with respect to the hilum. This study aimed to investigate the incidence and clinical impact of middle lobe rotation in patients undergoing right upper lobectomy. METHODS From January 2014 to November 2018, 82 patients underwent right upper lobectomy at our institution for lung cancer using a surgical stapler to divide the minor fissure. Postoperative computed tomography scans evaluated the counterclockwise rotation of the middle lobe, in which the staple lines placed on the minor fissure were in contact with the major fissure of the right lower lobe (120° counterclockwise rotation). Clinicoradiological factors were evaluated and compared between patients with and without middle lobe rotation. We also reviewed surgical videos in patients with middle lobe rotation to evaluate the position of the middle lobe at the end of surgery. RESULTS Nine patients had a middle lobe rotation (11%), where 1 patient required surgical derotation. Patients with middle lobe rotation were significantly associated with more frequent right middle lobe atelectasis and severe postoperative complications compared with those without rotation. A surgical video review detected potential middle lobe rotation at the end of the surgery. CONCLUSIONS Middle lobe rotation without torsion following right upper lobectomy is not rare, and it is associated with adverse postoperative courses. Careful positioning of the right middle lobe at the end of surgery is warranted to improve postoperative outcomes.
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Affiliation(s)
- Sachie Koike
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - Takashi Eguchi
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - Shunichiro Matsuoka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - Tetsu Takeda
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - Kentaro Miura
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - Kazutoshi Hamanaka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Nagano, Japan
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12
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Martínez-Rovira I, Seksek O, Bergs J, Hirayama R, Matsufuji N, Inaniwa T, Koike S, Shimokawa T, Prezado Y, Yousef I. OC-0095 Neon minibeam radiotherapy (Ne MBRT): investigating biological mechanisms with synchrotron light. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02471-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Miura K, Shimizu K, Hasegawa S, Koike S, Matsuoka S, Takeda T, Eguchi T, Hamanaka K, Takizawa M. Non-incisional pleurectomy/decortication for malignant mesothelioma after cardiac surgery. Thorac Cancer 2021; 13:126-128. [PMID: 34799989 PMCID: PMC8720616 DOI: 10.1111/1759-7714.14231] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 11/27/2022] Open
Abstract
A 70‐year‐old man diagnosed with right‐sided malignant epithelial pleural mesothelioma, underwent pleurectomy/decortication after three courses of neoadjuvant chemotherapy. He had a history of mitral valve replacement and maze procedure with median sternotomy, and the procedures resulted in strong adhesion from the apex to the mediastinal side. In particular, the peeling of the area where the tumor invaded the pericardium required the most attention; however, the involved pericardium could be partially resected without damaging the right atrium. Finally, en bloc macroscopic complete resection with the entire pleura was successfully performed without conversion to extrapleural pneumonectomy.
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Affiliation(s)
- Kentaro Miura
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Seiki Hasegawa
- Department of Thoracic Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Sachie Koike
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Shunichiro Matsuoka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tetsu Takeda
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takashi Eguchi
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kazutoshi Hamanaka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Momoko Takizawa
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
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14
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Nakamura D, Toishi M, Sakaizawa T, Koike S, Nishimura H. Postoperative chylothorax following lung cancer surgery with an aberrant course of thoracic duct: a case report. J Surg Case Rep 2021; 2021:rjab490. [PMID: 34733476 PMCID: PMC8560721 DOI: 10.1093/jscr/rjab490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/08/2021] [Indexed: 12/03/2022] Open
Abstract
Postoperative chylothorax occurs relatively rarely after pulmonary resections, often caused intraoperatively by injury to the thoracic duct. We describe a case of postoperative chylothorax after lung cancer surgery with an aberrant thoracic duct course. A 66-year-old man showed abnormal findings on chest computed tomography (CT) during health screening and was suspected with primary lung cancer. Then, he underwent a right upper lobectomy with mediastinal lymph-node dissection. The histopathological findings confirmed lung adenocarcinoma. However, the patient developed a postoperative chylothorax and underwent revision surgery. An abnormally running thoracic duct, which was expected to flow into the right venous angle, was found at the cranial side of the right superior mediastinal dissection area and was clipped. Considering the many variations in the route of the thoracic duct, thoracic surgeons should remain alert for postoperative chylothorax when performing lung cancer surgery with mediastinal lymph-node dissection and prepare treatment strategies accordingly.
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Affiliation(s)
- Daisuke Nakamura
- Department of Chest Surgery, Nagano Municipal Hospital, Nagano, Nagano, Japan
| | - Masayuki Toishi
- Department of Chest Surgery, Nagano Municipal Hospital, Nagano, Nagano, Japan
| | - Takao Sakaizawa
- Department of General Medicine, Matsushiro General Hospital, Nagano, Nagano, Japan
| | - Sachie Koike
- Department of Thoracic Surgery, Japanese Red Cross Society Nagano Hospital, Nagano, Nagano, Japan
| | - Hideki Nishimura
- Department of Chest Surgery, Nagano Municipal Hospital, Nagano, Nagano, Japan
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15
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Kodithuwakku KAHT, Owada H, Miura H, Maruyama D, Hirano K, Suzuki Y, Kobayashi Y, Koike S. Effects of oral administration of timothy hay and psyllium on the growth performance and fecal microbiota of preweaning calves. J Dairy Sci 2021; 104:12472-12485. [PMID: 34538491 DOI: 10.3168/jds.2021-20259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 08/09/2021] [Indexed: 12/12/2022]
Abstract
The objective of this study was to evaluate the effects of oral administration of fiber from the first week of life on the growth and hindgut environment of preweaning calves. Twenty newborn female Holstein calves were divided into 2 groups as control and treatment. Calves in both groups were reared under the same feeding program except for oral fiber administration. Timothy hay and psyllium were mixed at a 50-to-6 ratio as a treatment diet for oral fiber administration. Calves in the treatment group were orally administered 50 g of fiber daily from 3 to 7 d of age and 100 g of fiber from 8 d of age until weaning. Feed intake and occurrence of diarrhea were recorded daily, and body weight (BW) was recorded weekly for the individual calf. Fresh feces were collected from calves at 7, 21, 35, 49, and 56 d of age to analyze fermentation parameters and microbiota to characterize the hindgut environment. Higher fiber intake in the treatment group due to oral administration of timothy and psyllium did not affect the starter intake and achieved higher BW at 21 d of age. The fecal pH, total volatile fatty acid, lactate, and ammonia nitrogen concentrations were not affected by oral fiber administration; meanwhile, the molar proportion of propionate was higher in the treatment group at 7 d of age. The difference in fecal microbiota in the calves subjected to the oral administration of fiber was observed within 21 d of life; Lactobacillus spp. and Prevotella spp. showed higher abundance, whereas that of Clostridium perfringens was decreased. These higher abundances of beneficial bacteria and lower abundance of pathogenic bacteria during early life may partly explain the higher BW of calves in the treatment group at 21 d of age. Furthermore, no adverse effect was observed for the BW and health status in the treatment group throughout the preweaning period. Therefore, early fiber feeding via oral administration potentially contributes to improving the hindgut environment in newborn calves, which leads to better growth of calves during the early stage of life.
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Affiliation(s)
| | - H Owada
- Central Research Institute for Feed and Livestock, ZEN-NOH, Kasama 319-0205, Japan
| | - H Miura
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - D Maruyama
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - K Hirano
- Central Research Institute for Feed and Livestock, ZEN-NOH, Kasama 319-0205, Japan
| | - Y Suzuki
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Y Kobayashi
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - S Koike
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan.
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16
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Yamazaki S, Koike S, Eguchi T, Matsuoka S, Takeda T, Miura K, Hamanaka K, Shimizu K. Preemptive Intercostal Nerve Block as an Alternative to Epidural Analgesia. Ann Thorac Surg 2021; 114:257-264. [PMID: 34389301 DOI: 10.1016/j.athoracsur.2021.07.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 02/12/2021] [Revised: 05/27/2021] [Accepted: 07/01/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND The necessity of thoracic epidural analgesia (TEA) during minimally invasive surgery remains unclear. We investigated TEA efficacy in minimally invasive surgery vs. thoracotomy and the non-inferiority of a preemptive intercostal nerve block (ICNB) to TEA in minimally invasive surgery. METHODS We investigated 393 patients who underwent lung resection, with and without TEA, between 2014 and 2019 (242 minimally invasive surgery, 151 thoracotomy) and 93 patients who underwent minimally invasive surgery with ICNB between 2019 and 2020. To address selection bias, 70 TEA and 70 ICNB patients were propensity-score-matched. Endpoints were 1) pain score during hospitalization, 2) postoperative complications, 3) duration of operating room use, 4) analgesia-related adverse effects, and 5) use of supplemental pain medication. RESULTS One-third of patients with minimally invasive surgery discontinued TEA on postoperative day 1 or earlier; those with early TEA discontinuation reported worse pain the next day. TEA was associated with lower pain scores compared to non-TEA, regardless of surgical invasiveness, and a lower complication risk in patients with thoracotomy, but not minimally invasive surgery. For minimally invasive surgery, ICNB was associated with equivalent pain score on postoperative day 1, lower average pain score during hospitalization, shorter duration of operation room use, less frequent use of supplemental pain medication, and similar risk of postoperative complication and analgesia-related adverse effects compared to TEA after matching. CONCLUSIONS Given early TEA discontinuation after minimally invasive surgery and ICNB's non-inferior pain relief, preemptive ICNB can be an alternative for TEA in patients undergoing minimally invasive surgery.
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Affiliation(s)
- Shiori Yamazaki
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Sachie Koike
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takashi Eguchi
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
| | - Shunichiro Matsuoka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tetsu Takeda
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kentaro Miura
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kazutoshi Hamanaka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
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17
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Koike S, Ueno M, Miura H, Saegusa A, Inouchi K, Inabu Y, Sugino T, Guan LL, Oba M, Kobayashi Y. Rumen microbiota and its relation to fermentation in lactose-fed calves. J Dairy Sci 2021; 104:10744-10752. [PMID: 34218911 DOI: 10.3168/jds.2021-20225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/25/2021] [Indexed: 01/26/2023]
Abstract
In our previous studies, we revealed the effect of lactose inclusion in calf starters on the growth performance and gut development of calves. We conducted the present study as a follow-up study to identify the shift in rumen microbiota and its relation to rumen fermentation when calves are fed a lactose-containing starter. Thirty Holstein bull calves were divided into 2 calf starter treatment groups: texturized calf starter (i.e., control; n = 15) or calf starter in which starch was replaced with lactose at 10% (i.e., LAC10; n = 15) on a dry matter basis. All calves were fed their respective treatment calf starter ad libitum from d 7, and kleingrass hay from d 35. Rumen digesta were collected on d 80 (i.e., 3 wk after weaning) and used to analyze rumen microbiota and fermentation products. There was no apparent effect of lactose feeding on the α-diversity and overall composition of rumen microbiota. Amplicon sequencing and real-time PCR quantification of the 16S rRNA gene confirmed that the abundance of butyrate-producing bacteria (i.e., Butyrivibrio group and Megasphaera elsdenii) did not differ between the control and LAC10 groups. Conversely, the relative abundance of Mitsuokella spp., which produce lactate, succinate, and acetate, was significantly higher in the rumen of calves that were fed lactose, whereas the lactate concentration did not differ between the control and LAC10 groups. These findings suggest that the lactate production can be elevated by an increase of Mitsuokella spp. and then converted into butyrate, not propionate, since the proportion of propionate was lower in lactose-fed calves. In addition, we observed a higher abundance of Coriobacteriaceae and Pseudoramibacter-Eubacterium in the LAC10 group. Both these bacterial taxa include acetate-producing bacteria, and a positive correlation between the acetate-to-propionate ratio and the abundance of Pseudoramibacter-Eubacterium was observed. Therefore, the higher abundance of Coriobacteriaceae, Mitsuokella spp., and Pseudoramibacter-Eubacterium in the rumen of lactose-fed calves partially explains the increase in the proportion of rumen acetate that was observed in our previous study.
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Affiliation(s)
- S Koike
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589.
| | - M Ueno
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589
| | - H Miura
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589
| | - A Saegusa
- Dairy Technology Research Institute, Feed-Livestock and Guidance Department, The National Federation of Dairy Co-operative Associations, Nishi-shirakawa, Fukushima, Japan 969-0223
| | - K Inouchi
- Dairy Technology Research Institute, Feed-Livestock and Guidance Department, The National Federation of Dairy Co-operative Associations, Nishi-shirakawa, Fukushima, Japan 969-0223
| | - Y Inabu
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan 739-8528
| | - T Sugino
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan 739-8528
| | - L L Guan
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - M Oba
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - Y Kobayashi
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589
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Miura K, Shimizu K, Eguchi T, Koike S, Matsuoka S, Takeda T, Hamanaka K, Uehara T. Usefulness of SS18-SSX antibody as a diagnostic marker for pulmonary metastatic synovial sarcoma. Diagn Pathol 2021; 16:54. [PMID: 34127031 PMCID: PMC8204458 DOI: 10.1186/s13000-021-01110-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/27/2021] [Indexed: 11/18/2022] Open
Abstract
Background The novel SS18-SSX fusion-specific antibody is reported to have high sensitivity and specificity for the diagnosis of primary synovial sarcoma (SS), which often metastasizes to the lung. Thus far, no study has validated the diagnostic efficacy of SS18-SSX antibody for pulmonary metastatic SS. Therefore, we aimed to investigate the usefulness of the SS18-SSX antibody in the diagnosis of pulmonary metastatic SS. Methods We evaluated the immunohistochemistry of SS18-SSX fusion-specific antibody (E9X9V) in 10 pulmonary metastatic SS cases and the corresponding five primary sites (four limbs and one mediastinum) in five patients, for whom SS was already diagnosed and confirmed by fluorescence in-situ hybridization in the metastatic and primary sites, and in 93 clinical and histologic mimics including 49 non-SS, pulmonary metastatic sarcomas, 39 primary lung cancers, and five intrathoracic solitary fibrotic tumors. All specimens were surgically resected at Shinshu University Hospital during 2001–2019. For primary and metastatic SS, we also evaluated SS18-SSX immunohistochemistry using needle biopsy and touch imprint cytology specimens from the primary site. Results SS18-SSX staining was diffusely-strongly positive in all 10 pulmonary metastatic SS cases and the corresponding five primary sites; whereas, it was negative in all 93 clinical and histologic mimics (100% sensitivity and 100% specificity). Further, SS18-SSX staining was also sufficiently positive in the biopsy and cytology specimens. Conclusions Immunohistochemistry of the SS18-SSX fusion-specific antibody is useful for the differential diagnosis of pulmonary metastatic SS in clinical practice. This simple and reliable method has the potential to replace traditional genomic tests. However, further studies are warranted in this regard.
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Affiliation(s)
- Kentaro Miura
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
| | - Takashi Eguchi
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Sachie Koike
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Shunichiro Matsuoka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tetsu Takeda
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kazutoshi Hamanaka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takeshi Uehara
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
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19
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Matsuoka S, Hasegawa H, Koike S, Koyama T, Takeda T, Miura K, Eguchi T, Hamanaka K, Kito M, Takahashi J, Fukushima T, Koizumi T, Shimizu K, Uehara T. Undifferentiated Pleomorphic Sarcoma of Soft Tissue with Multinucleated Giant Cells with Osteogenic Phenotypes: A Mimicker of Malignant Giant Cell Tumor of Soft Tissue. J HARD TISSUE BIOL 2021. [DOI: 10.2485/jhtb.30.309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Shunichiro Matsuoka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine
| | - Hiromasa Hasegawa
- Hard Tissue Pathology Unit, Graduate School of Oral Medicine, Matsumoto Dental University
| | - Sachie Koike
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine
| | - Tsutomu Koyama
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine
| | - Tetsu Takeda
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine
| | - Kentaro Miura
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine
| | - Takashi Eguchi
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine
| | - Kazutoshi Hamanaka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine
| | - Munehisa Kito
- Department of Orthopaedic Surgery, Shinshu University School of Medicine
| | - Jun Takahashi
- Department of Orthopaedic Surgery, Shinshu University School of Medicine
| | - Toshiro Fukushima
- Department of Hematology and Medical Oncology, Shinshu University School of Medicine
| | - Tomonobu Koizumi
- Department of Hematology and Medical Oncology, Shinshu University School of Medicine
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine
| | - Takeshi Uehara
- Department of Laboratory Medicine, Shinshu University School of Medicine
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20
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Takeda T, Eguchi T, Koike S, Koyama T, Matsuoka S, Miura K, Hamanaka K, Satoh Y, Uehara T, Shimizu K. Growing thymic granuloma adjacent to a thymic cyst mimicking malignancy: a case report. Mediastinum 2020; 4:28. [PMID: 35118296 PMCID: PMC8794359 DOI: 10.21037/med-20-46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/13/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Tetsu Takeda
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takashi Eguchi
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Sachie Koike
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tsutomu Koyama
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Shunichiro Matsuoka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kentaro Miura
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kazutoshi Hamanaka
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yayoi Satoh
- Department of Diagnostic Pathology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takeshi Uehara
- Department of Diagnostic Pathology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
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21
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Ozawa Y, Santo N, Yagi Y, Nishiyama T, Yokoi T, Koike S, Nakamura K, Ishioka K, Ozu C, Toya K, Yorozu A, Saito S. Response of leukocyte to iodine-125 permanent prostate seed implantation predict PSA failure in patients with localized prostate cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32717-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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22
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Ozawa Y, Santo N, Yagi Y, Nishiyama T, Yokoi T, Koike S, Nakamura K, Ishioka K, Ozu C, Toya K, Yorozu A, Saito S. Secondary bladder cancer arising after iodine-125 permanent seed implantation for localized prostate cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34033-7] [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: 11/25/2022] Open
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23
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Shimodaira Y, Koike S, Takahashi Y, Okada M, Hayashibara K, Sekino Y, Sakon M, Takata M, Seki H, Munakata Y. Prognostic value of modified Glasgow Prognostic Score (mGPS) and neutrophil-lymphocyte ration (NLR) after curative resection for gastric cancer. J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.4_suppl.295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
295 Background: Several biomarkers based on serum chemistry have been reported to be associated with the prognosis of several types of cancers. This retrospective study aimed to investigate the prognostic value of preoperative mGPS and NLR after curative resection for gastric cancer. Methods: A total of 295 patients who underwent curative gastrectomy for primary gastric cancer at our institution from January 2013 to December 2017 were enrolled in this study. The mGPS was calculated by CRP and Alb using standard thresholds ( > 0.5 mg/dL for CRP and < 3.5 g/dL for Alb). The NLR was defined as absolute neutrophil count divided by absolute lymphocyte count. The survival curves of patients stratified by each parameter were plotted by the Kaplan-Meier method and compared by log-rank test. Multivariate Cox proportional hazards regression models were used to select parameters independently correlated with prognosis. Results: The median follow-up time was 36.7 months, and 29 patients died during follow-up. The estimated 5-year survival rate was 83.1%. Results from the univariate analyses showed mGPS2 (CRP > 0.5 mg/dL and Alb < 3.5 g/dL) was associated with poor survival while NLR and NLRc was not (P < 0.001, P = 0.506, and P = 0.423, respectively). In the multivariate analyses, the mGPS2 was identified as an independent predictive factor for OS in gastric cancer patients after curative resection (HR: 2.624; 95% CI: 1.058-6.505; P = 0.037). Conclusions: Preoperative mGPS2 was associated with worse survival after curative resection of gastric cancer patients. Based on our study, those with mPGS2 may be warranted to receive additional therapy or nutritional support to acquire better survival.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Yasuhiro Munakata
- Department of Gastroenterology, Nagano Municipal Hospital, Nagano, Japan
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24
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Konda S, Onodera R, Kanchanasatit E, Boonsaen P, Sawanon S, Nagashima K, Suzuki Y, Koike S, Kobayashi Y. Effect of cashew nut shell liquid feeding on fermentation and microbiota in the rumen of Thai native cattle and swamp buffaloes. Livest Sci 2019. [DOI: 10.1016/j.livsci.2019.06.011] [Citation(s) in RCA: 8] [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] [Indexed: 11/30/2022]
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Abstract
BACKGROUND To secure human resources for occupational medicine, it is important to analyse occupational physician retention trends and the factors associated with retention. However, little is currently known about this topic. AIMS To identify occupational physician retention trends, to identify factors associated with this retention and to discuss the policy implications of the findings. METHODS We analysed data from the biannual national physician census surveys conducted by the government of Japan from 2002 to 2014. In this study, those who chose 'working as an occupational physician' as their workplace/type of work from a pre-determined list in the survey questionnaire were considered full-time occupational physicians. We presented retention trends by calculating the annual retention rate for each set of two consecutive surveys. We then used logistic regression to identify factors associated with retention among occupational physicians. RESULTS The annual retention rate of full-time occupational physicians from 2012 to 2014 was estimated as 76%, which represents a 6% improvement in retention over the study period. The odds of continuing to practise as an occupational physician were higher for occupational physicians working in cities compared with those working in towns or villages. CONCLUSIONS Improving and facilitating smooth transitions between clinical practice and occupational medicine would help to secure human resources in occupational medicine, even if the current trend of low retention continues.
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Affiliation(s)
- S Koike
- Division of Health Policy and Management, Center for Community Medicine, Jichi Medical University, Tochigi, Japan.,Division of Public Health Center for Community Medicine, Jichi Medical University, Tochigi, Japan
| | - T Isse
- Section of Postgraduate Guidance, School of Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - H Kawaguchi
- Department of Biomedical Informatics, The University of Tokyo, Tokyo, Japan
| | - M Ogawa
- Health Service Center, Jichi Medical University, Tochigi, Japan
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26
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Suzuki Y, Kubota K, Miura H, Haga S, Roh S, Koike S, Kobayashi Y. 135 The effect of chemerin as a host-derived factor on intestinal microbial activity in calves. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Suzuki
- Hokkaido University,Sapporo, Japan
| | - K Kubota
- Hokkaido University,Sapporo, Japan
| | - H Miura
- Hokkaido University,Sapporo, Japan
| | - S Haga
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization,Ibaraki, Japan
| | - S Roh
- Tohoku University,Sendai, Japan
| | - S Koike
- Hokkaido University,Sapporo, Japan
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27
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Myint H, Kishi H, Iwahashi Y, Saburi W, Koike S, Kobayashi Y. Functional modulation of caecal fermentation and microbiota in rat by feeding bean husk as a dietary fibre supplement. Benef Microbes 2018; 9:963-974. [PMID: 30208728 DOI: 10.3920/bm2017.0174] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 12/17/2023]
Abstract
A feeding study using rats was conducted to evaluate the utility of lablab bean husk and soya bean husk as sources of potential prebiotic fibre. Twenty 5-week-old Sprague Dawley rats were divided into 4 groups and fed one of the following diets for 3 weeks: purified diet (AIN93 G) containing 5% cellulose (CEL), or the same diet in which cellulose was replaced by corn starch (STA), lablab bean husk (LBH), or soya bean husk (SBH). Rats were sacrificed at 8 weeks of age and caecal digesta were collected. Feed intake, body weight, anatomical parameters, and caecal ammonia level did not differ significantly among diets. Rats on LBH and SBH showed higher concentrations of caecal short-chain fatty acid and lactate than those on CEL. Rats on CEL, SBH, and LBH exhibited lower caecal indole and skatole levels. LBH yielded increased caecal abundance of Akkermansia muciniphila and Oscillibacter relatives, as demonstrated by either qPCR, MiSeq, or clone library analysis. SBH favoured the growth of lactobacilli as assessed by both qPCR and MiSeq, and favoured the growth of bifidobacteria as assessed by MiSeq. In comparison with STA, LBH and SBH yielded lower caecal abundance of bacteria related to Dorea massiliensis, as demonstrated by qPCR, MiSeq, and clone library analysis. Both types of bean husk were found to contain oligosaccharides that might selectively stimulate the growth of beneficial bacteria. Based on these results, the two species of bean husk tested are considered potentially functional for promoting the gut health of monogastric animals.
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Affiliation(s)
- H Myint
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - H Kishi
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - Y Iwahashi
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - W Saburi
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - S Koike
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - Y Kobayashi
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
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28
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Watabe Y, Suzuki Y, Koike S, Shimamoto S, Kobayashi Y. Cellulose acetate, a new candidate feed supplement for ruminant animals: In vitro evaluations. J Dairy Sci 2018; 101:10929-10938. [DOI: 10.3168/jds.2018-14969] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 08/16/2018] [Indexed: 11/19/2022]
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29
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Tochigi K, Masaki T, Nakajima A, Yamazaki K, Inagaki A, Koike S. Detection of arboreal feeding signs by Asiatic black bears: effects of hard mast production at individual tree and regional scales. J Zool (1987) 2018. [DOI: 10.1111/jzo.12564] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. Tochigi
- Tokyo University of Agriculture and Technology Fuchu, Tokyo Japan
| | - T. Masaki
- Forestry and Forest Products Research Institute Tsukuba Ibaraki Japan
| | - A. Nakajima
- Tokyo University of Agriculture and Technology Fuchu, Tokyo Japan
| | | | - A. Inagaki
- Tokyo University of Agriculture and Technology Fuchu, Tokyo Japan
| | - S. Koike
- Tokyo University of Agriculture and Technology Fuchu, Tokyo Japan
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Koike S, Barnett J, Jones PB, Richards M. Cognitive profiles in childhood and adolescence differ between adult psychotic and affective symptoms: a prospective birth cohort study. Psychol Med 2018; 48:11-22. [PMID: 28988550 PMCID: PMC5729848 DOI: 10.1017/s0033291717000393] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 11/06/2022]
Abstract
BACKGROUND Differences between verbal and non-verbal cognitive development from childhood to adulthood may differentiate between those with and without psychotic symptoms and affective symptoms in later life. However, there has been no study exploring this in a population-based cohort. METHOD The sample was drawn from the MRC National Survey of Health and Development, and consisted of 2384 study members with self-reported psychotic experiences and affective symptoms at the age of 53 years, and with complete cognitive data at the ages of 8 and 15 years. The association between verbal and non-verbal cognition at age 8 years and relative developmental lag from age 8 to 15 years, and both adult outcomes were tested with the covariates adjusted, and mutually adjusted for verbal and non-verbal cognition. RESULTS Those with psychotic experiences [thought interference (n = 433), strange experience (n = 296), hallucination (n = 88)] had lower cognition at both the ages of 8 and 15 years in both verbal and non-verbal domains. After mutual adjustment, lower verbal cognition at age 8 years and greater verbal developmental lag were associated with higher likelihood of psychotic experiences within individuals, whereas there was no association between non-verbal cognition and any psychotic experience. In contrast, those with case-level affective symptoms (n = 453) had lower non-verbal cognition at age 15 years, and greater developmental lag in the non-verbal domain. After adjustment, lower non-verbal cognition at age 8 years and greater non-verbal developmental lag were associated with higher risk of case-level affective symptoms within individuals. CONCLUSIONS These results suggest that cognitive profiles in childhood and adolescence differentiate psychiatric disease spectra.
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Affiliation(s)
- S. Koike
- MRC Unit for Lifelong Health and Ageing at
UCL, 33 Bedford Place, London WC1B 5JU,
UK
- University of Tokyo Institute for Diversity
& Adaptation of Human Mind (UTIDAHM), 3-8-1 Komaba,
Meguro-ku, Tokyo 153-8902, Japan
- Center for Evolutionary Cognitive
Sciences, Graduate School of Arts and Sciences, The University of
Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902,
Japan
| | - J. Barnett
- Department of Psychiatry,
University of Cambridge, Cambridge CB2
0SZ, UK
- Cambridge Cognition Ltd,
Cambridge CB25 9TU, UK
| | - P. B. Jones
- Department of Psychiatry,
University of Cambridge, Cambridge CB2
0SZ, UK
- CAMEO, Cambridgeshire & Peterborough NHS
Foundation Trust, Cambridge CB21 5EF,
UK
| | - M. Richards
- MRC Unit for Lifelong Health and Ageing at
UCL, 33 Bedford Place, London WC1B 5JU,
UK
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Inabu Y, Saegusa A, Inouchi K, Koike S, Oba M, Sugino T. Plasma concentrations of glucagon-like peptide 1 and 2 in calves fed calf starters containing lactose. J Dairy Sci 2017; 100:9361-9371. [DOI: 10.3168/jds.2017-12910] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/24/2017] [Indexed: 02/03/2023]
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32
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Nakayama F, Umeda S, Fujita M, Imadome K, Kawano M, Koike S, Miura T, Yasuda T, Masuzawa M, Imai T. 605 Strong FGF1 signaling inhibits the proliferation, invasion and migration of murine angiosarcoma cell line ISOS-1. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.802] [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]
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33
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Ishida YI, Kayama T, Kibune Y, Nishimoto S, Koike S, Suzuki T, Horiuchi Y, Miyashita M, Itokawa M, Arai M, Ogasawara Y. Identification of an argpyrimidine-modified protein in human red blood cells from schizophrenic patients: A possible biomarker for diseases involving carbonyl stress. Biochem Biophys Res Commun 2017; 493:573-577. [PMID: 28867194 DOI: 10.1016/j.bbrc.2017.08.150] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 08/15/2017] [Accepted: 08/25/2017] [Indexed: 12/14/2022]
Abstract
Argpyrimidine (ARP) is an advanced glycation end product thought to be generated from a reaction between methylglyoxal and arginine residues in proteins. In this study, we observed marked accumulation of an approximately 56 kD protein, reactive to anti-ARP antibodies, in the red blood cells (RBCs) of some patients with refractory schizophrenia. This ARP-modified protein was purified from the blood of schizophrenic patients and identified as selenium binding protein 1 (SBP1) by LC-MS/MS. This is the first report of ARP-modified proteins accumulating in RBCs of patients with diseases involving carbonyl stress. We also observed high accumulation of ARP-modified SBP1 in the RBCs of patients with chronic kidney disease. Therefore, this modified protein may be a novel marker of carbonyl stress.
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Affiliation(s)
- Y I Ishida
- Department of Molecular and Cellular Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - T Kayama
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - Y Kibune
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - S Nishimoto
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - S Koike
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - T Suzuki
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - Y Horiuchi
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya, Tokyo 156-8506, Japan
| | - M Miyashita
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya, Tokyo 156-8506, Japan
| | - M Itokawa
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya, Tokyo 156-8506, Japan
| | - M Arai
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya, Tokyo 156-8506, Japan
| | - Y Ogasawara
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan.
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Saegusa A, Inouchi K, Ueno M, Inabu Y, Koike S, Sugino T, Oba M. Effects of partial replacement of corn grain with lactose in calf starters on ruminal fermentation and growth performance. J Dairy Sci 2017. [DOI: 10.3168/jds.2017-12616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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35
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Koike S, Yamasaki K, Yamauchi T, Aiba S. 780 UVB and Poly(I:C) induce PAR-2 and enhance melanosome uptake by normal human epidermal keratinocytes though TLR3 signaling pathway. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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36
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Oh S, Shintani R, Koike S, Kobayashi Y. Ginkgo fruit extract as an additive to modify rumen microbiota and fermentation and to mitigate methane production. J Dairy Sci 2017; 100:1923-1934. [PMID: 28088403 DOI: 10.3168/jds.2016-11928] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 11/18/2016] [Indexed: 11/19/2022]
Abstract
Ginkgo fruit, an unused byproduct of the ginkgo nut industry, contains antimicrobial compounds known as anacardic acids. Two major cultivars of ginkgo, Kyuju (K) and Tokuro (T), were evaluated for their potential as a feed additive for ruminants. In batch culture, we incubated a mixture of hay and concentrate in diluted rumen fluid with or without 1.6% (fruit equivalent) ginkgo fruit extract. We conducted another series of batch culture studies to determine the dose response of fermentation. We also conducted continuous culture using the rumen simulation technique (RUSITEC) with cultivar K and carried out a pure culture study to monitor the sensitivity of 17 representative rumen bacterial species to ginkgo extract and component phenolics. Although both K and T extracts led to decreased methane and increased propionate production, changes were more apparent with K extract, and were dose-dependent. Total gas production was depressed at doses ≥3.2%, suggesting that 1.6% was the optimal supplementation level. In RUSITEC fermentation supplemented with 1.6% ginkgo K, methane decreased by 53% without affecting total gas or total VFA production, but with decreased acetate and increased propionate. Disappearance of dry matter, neutral detergent fiber, and acid detergent fiber were not affected by ginkgo, but ammonia levels were decreased. Quantitative PCR indicated that the abundance of protozoa, fungi, methanogens, and bacteria related to hydrogen and formate production decreased, but the abundance of bacteria related to propionate production increased. MiSeq analysis (Illumina Inc., San Diego, CA) confirmed these bacterial changes and identified archaeal community changes, including a decrease in Methanobrevibacter and Methanomassiliicoccaceae and an increase in Methanoplanus. Pure culture study results supported the findings for the above bacterial community changes. These results demonstrate that ginkgo fruit can modulate rumen fermentation toward methane mitigation and propionate enhancement via microbial selection.
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Affiliation(s)
- S Oh
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - R Shintani
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - S Koike
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Y Kobayashi
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan.
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Mitarai O, Nakamura K, Hasegawa M, Onchi T, Idei H, Fujisawa A, Hanada K, Zushi H, Higashijima A, Nakashima H, Kawasaki S, Matsuoka K, Koike S, Takahashi T, Tsutsui H. Comparative studies of inner and outer divertor discharges and a fueling study in QUEST. Fusion Engineering and Design 2016. [DOI: 10.1016/j.fusengdes.2015.12.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Okada N, Fukunaga M, Yamashita F, Koshiyama D, Yamamori H, Ohi K, Yasuda Y, Fujimoto M, Watanabe Y, Yahata N, Nemoto K, Hibar DP, van Erp TGM, Fujino H, Isobe M, Isomura S, Natsubori T, Narita H, Hashimoto N, Miyata J, Koike S, Takahashi T, Yamasue H, Matsuo K, Onitsuka T, Iidaka T, Kawasaki Y, Yoshimura R, Watanabe Y, Suzuki M, Turner JA, Takeda M, Thompson PM, Ozaki N, Kasai K, Hashimoto R. Abnormal asymmetries in subcortical brain volume in schizophrenia. Mol Psychiatry 2016; 21:1460-6. [PMID: 26782053 PMCID: PMC5030462 DOI: 10.1038/mp.2015.209] [Citation(s) in RCA: 238] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 11/06/2015] [Accepted: 11/13/2015] [Indexed: 12/31/2022]
Abstract
Subcortical structures, which include the basal ganglia and parts of the limbic system, have key roles in learning, motor control and emotion, but also contribute to higher-order executive functions. Prior studies have reported volumetric alterations in subcortical regions in schizophrenia. Reported results have sometimes been heterogeneous, and few large-scale investigations have been conducted. Moreover, few large-scale studies have assessed asymmetries of subcortical volumes in schizophrenia. Here, as a work completely independent of a study performed by the ENIGMA consortium, we conducted a large-scale multisite study of subcortical volumetric differences between patients with schizophrenia and controls. We also explored the laterality of subcortical regions to identify characteristic similarities and differences between them. T1-weighted images from 1680 healthy individuals and 884 patients with schizophrenia, obtained with 15 imaging protocols at 11 sites, were processed with FreeSurfer. Group differences were calculated for each protocol and meta-analyzed. Compared with controls, patients with schizophrenia demonstrated smaller bilateral hippocampus, amygdala, thalamus and accumbens volumes as well as intracranial volume, but larger bilateral caudate, putamen, pallidum and lateral ventricle volumes. We replicated the rank order of effect sizes for subcortical volumetric changes in schizophrenia reported by the ENIGMA consortium. Further, we revealed leftward asymmetry for thalamus, lateral ventricle, caudate and putamen volumes, and rightward asymmetry for amygdala and hippocampal volumes in both controls and patients with schizophrenia. Also, we demonstrated a schizophrenia-specific leftward asymmetry for pallidum volume. These findings suggest the possibility of aberrant laterality in neural pathways and connectivity patterns related to the pallidum in schizophrenia.
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Affiliation(s)
- N Okada
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - M Fukunaga
- Division of Cerebral Integration, National Institute for Physiological Sciences, Aichi, Japan
| | - F Yamashita
- Division of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, Iwate, Japan
| | - D Koshiyama
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Yamamori
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - K Ohi
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Y Yasuda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - M Fujimoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Y Watanabe
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - N Yahata
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan
| | - K Nemoto
- Department of Neuropsychiatry, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - D P Hibar
- Imaging Genetics Center, University of Southern California, Marina del Rey, CA, USA
| | - T G M van Erp
- Department of Psychiatry and Human Behavior, University of California, Irvine, CA, USA
| | - H Fujino
- Graduate School of Human Sciences, Osaka University, Osaka, Japan
| | - M Isobe
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - S Isomura
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Natsubori
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Narita
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - N Hashimoto
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - J Miyata
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - S Koike
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Office for Mental Health Support, Division for Counseling and Support, The University of Tokyo, Tokyo, Japan
| | - T Takahashi
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - H Yamasue
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Matsuo
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - T Onitsuka
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Iidaka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Y Kawasaki
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - R Yoshimura
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Y Watanabe
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - M Suzuki
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - J A Turner
- Department of Psychology, Georgia State University, Atlanta, GA, USA
- Department of Neuroscience, Georgia State University, Atlanta, GA, USA
| | - M Takeda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - P M Thompson
- Imaging Genetics Center, University of Southern California, Marina del Rey, CA, USA
| | - N Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - K Kasai
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - R Hashimoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
- Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Osaka, Japan
| | - COCORO
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Division of Cerebral Integration, National Institute for Physiological Sciences, Aichi, Japan
- Division of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, Iwate, Japan
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
- Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan
- Department of Neuropsychiatry, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
- Imaging Genetics Center, University of Southern California, Marina del Rey, CA, USA
- Department of Psychiatry and Human Behavior, University of California, Irvine, CA, USA
- Graduate School of Human Sciences, Osaka University, Osaka, Japan
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
- Office for Mental Health Support, Division for Counseling and Support, The University of Tokyo, Tokyo, Japan
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
- Department of Psychology, Georgia State University, Atlanta, GA, USA
- Department of Neuroscience, Georgia State University, Atlanta, GA, USA
- Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Osaka, Japan
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Saegusa A, Inouchi K, Ueno M, Inabu Y, Koike S, Sugino T, Oba M. 1297 Effect of lactose inclusion in calf starters on rumen fermentation of weaned calves. J Anim Sci 2016. [DOI: 10.2527/jam2016-1297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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40
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Ogasawara Y, Ishida YI, Takikawa M, Funaki Y, Suzuki T, Koike S. Corrigendum to “A simple high performance liquid chromatography method for quantitatively determining the reduced form of peroxiredoxin 2 and the mass spectrometric analysis of its oxidative status” [J. Chromatogr. B Analyt. Technol. Biomed. Life. Sci. 997 (2015) 136–141]. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1020:170. [DOI: 10.1016/j.jchromb.2016.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Koike S. Clinical features and cosequences of RLS among the patients with CKD and hemodialysis. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.048] [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: 11/16/2022]
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Ogasawara Y, Ishida Y, Takikawa M, Funaki Y, Suzuki T, Koike S. A simple high performance liquid chromatography method for quantitatively determining the reduced form of peroxiredoxin 2 and the mass spectrometric analysis of its oxidative status. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 997:136-41. [PMID: 26113455 DOI: 10.1016/j.jchromb.2015.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 04/07/2015] [Revised: 05/29/2015] [Accepted: 06/10/2015] [Indexed: 11/30/2022]
Abstract
Peroxiredoxins (Prxs) are a family of thiol peroxidases, which have been suggested to serve as biomarkers for diseases caused by oxidative stress. In this study, we established a high performance liquid chromatography (HPLC) method for quantifying the amount of Prx2 in red blood cells (RBCs). RBC proteins were separated using HPLC, and a single peak was detected that matched that produced by recombinant Prx2. Under improved conditions, the calibration curve for Prx2 (reduced form) was linear over the range of 0.5-20.0μg with a correlation coefficient of 0.999. The minimum detectable level of the recombinant Prx2 was 0.2μg, with a signal-to-noise ratio of 3 per 20μl of injection volume. SDS-PAGE and mass spectrometric analysis showed that the proteins comprising the peak were almost exclusively Prx2. Further high-resolution analysis using nanoLC-MS/MS demonstrated that the oxidation sensitive, Cys-51 was carbamidomethylated by iodoacetamide-alkylation during in-gel digestion but was not modified with sulfinic acid (-SO2H) or sulfonic acid (-SO3H). These results indicated that the separated Prx2 was the reduced form and not the hyperoxidized form. These basic experiments allowed us to determine the relative amounts of native Prx2 in RBCs taken from healthy subjects. The average levels of Prx2 in male and female subjects were 7.28ng/mg and 8.29ng/mg, respectively, and no significant difference was observed between the sexes. Therefore, the HPLC method with UV detection described herein offers a convenient method to quantitatively determine the levels of reduced form of Prx2 and its oxidative decrease in human RBCs.
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Affiliation(s)
- Y Ogasawara
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan.
| | - Yi Ishida
- Department of Molecular and Cellular Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - M Takikawa
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Y Funaki
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - T Suzuki
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - S Koike
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
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Koike S, Soga M, Nemoto Y, Kozakai C. How are dung beetle species affected by deer population increases in a cool temperate forest ecosystem? J Zool (1987) 2014. [DOI: 10.1111/jzo.12138] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Koike
- Tokyo University of Agriculture and Technology Fuchu Japan
| | - M. Soga
- Tokyo University of Agriculture and Technology Fuchu Japan
| | - Y. Nemoto
- Tokyo University of Agriculture and Technology Fuchu Japan
| | - C. Kozakai
- Kanagawa Prefectural Museum of Natural History Odawara Japan
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Okamoto A, Oku T, Koike S, Sato Y, Ishii K, Kitajima S. Development of in situ energetic ion injector for magnetically confined plasmas using hydrogen storage electrode. Rev Sci Instrum 2014; 85:02B302. [PMID: 24593579 DOI: 10.1063/1.4825162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To develop a compact ion injector made of hydrogen storage material, we investigate a plasma response for a positively biased hydrogen storage electrode in a small standard heliac device. When the bias voltage of the electrode increases, a positive potential between the electrode and the space potential on the magnetic surface emerges. The emission of hydrogen atom line also increases. To clarify the origin of the increase in emission, we designed an imaging system with sufficient temporal resolution.
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Affiliation(s)
- A Okamoto
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - T Oku
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - S Koike
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Y Sato
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - K Ishii
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - S Kitajima
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
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Takabe R, Baba M, Nakamura K, Du W, Khan MA, Koike S, Toko K, Hara KO, Usami N, Suemasu T. Fabrication and characterizations of phosphorus-doped n-type BaSi2epitaxial films grown by molecular beam epitaxy. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pssc.201300326] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Koike S, Sujino T, Ohmori H, Shimazaki K, Fukuyama E, Kanai T, Hibi T, Ono T. Gastric emptying rate in subjects with malocclusion examined by [13
C] breath test. J Oral Rehabil 2013; 40:574-81. [DOI: 10.1111/joor.12073] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2013] [Indexed: 12/14/2022]
Affiliation(s)
- S. Koike
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
| | - T. Sujino
- Division of Gastroenterology and Hepatology; Department of Internal Medicine; School of Medicine; Keio University; Shinjuku-ku Tokyo Japan
- Department of General Internal Medicine; Saitama Medical University; Iruma-gun Saitama Japan
| | - H. Ohmori
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
| | - K. Shimazaki
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
| | - E. Fukuyama
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
- JOY Orthodontic Clinic; Yokohama-shi Kanagawa Japan
| | - T. Kanai
- Division of Gastroenterology and Hepatology; Department of Internal Medicine; School of Medicine; Keio University; Shinjuku-ku Tokyo Japan
| | - T. Hibi
- Division of Gastroenterology and Hepatology; Department of Internal Medicine; School of Medicine; Keio University; Shinjuku-ku Tokyo Japan
| | - T. Ono
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
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Koike S, Watanabe T, Mitsui T, Takahashi T, Asai T. Heating Effects of Background Neutral Particles on a Translated Field-Reversed Configuration. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Koike
- Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - T. Watanabe
- Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - T. Mitsui
- Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - T. Takahashi
- Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - T. Asai
- College of Science and Technology, Nihon University, 1-8-14 Kanda-Surugadai, Tokyo, Japan
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48
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Affiliation(s)
| | - Y. Yamaura
- Division of Environmental Resources; Graduate School of Agriculture; Hokkaido University; Sapporo; Hokkaido; Japan
| | - S. Koike
- Division of Environment Conservation; Graduate School of Agriculture; Tokyo University of Agriculture and Technology; Fuchu; Tokyo; Japan
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49
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Affiliation(s)
- M. Soga
- Division of Environmental Resources, Graduate School of Agriculture; Hokkaido University; Sapporo; Japan
| | - S. Koike
- Tokyo University of Agriculture and Technology; Tokyo; Japan
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Abe K, Abgrall N, Ajima Y, Aihara H, Albert JB, Andreopoulos C, Andrieu B, Aoki S, Araoka O, Argyriades J, Ariga A, Ariga T, Assylbekov S, Autiero D, Badertscher A, Barbi M, Barker GJ, Barr G, Bass M, Bay F, Bentham S, Berardi V, Berger BE, Bertram I, Besnier M, Beucher J, Beznosko D, Bhadra S, Blaszczyk FDMM, Blondel A, Bojechko C, Bouchez J, Boyd SB, Bravar A, Bronner C, Brook-Roberge DG, Buchanan N, Budd H, Calvet D, Cartwright SL, Carver A, Castillo R, Catanesi MG, Cazes A, Cervera A, Chavez C, Choi S, Christodoulou G, Coleman J, Coleman W, Collazuol G, Connolly K, Curioni A, Dabrowska A, Danko I, Das R, Davies GS, Davis S, Day M, De Rosa G, de André JPAM, de Perio P, Delbart A, Densham C, Di Lodovico F, Di Luise S, Dinh Tran P, Dobson J, Dore U, Drapier O, Dufour F, Dumarchez J, Dytman S, Dziewiecki M, Dziomba M, Emery S, Ereditato A, Escudero L, Esposito LS, Fechner M, Ferrero A, Finch AJ, Frank E, Fujii Y, Fukuda Y, Galymov V, Gannaway FC, Gaudin A, Gendotti A, George MA, Giffin S, Giganti C, Gilje K, Golan T, Goldhaber M, Gomez-Cadenas JJ, Gonin M, Grant N, Grant A, Gumplinger P, Guzowski P, Haesler A, Haigh MD, Hamano K, Hansen C, Hansen D, Hara T, Harrison PF, Hartfiel B, Hartz M, Haruyama T, Hasegawa T, Hastings NC, Hastings S, Hatzikoutelis A, Hayashi K, Hayato Y, Hearty C, Helmer RL, Henderson R, Higashi N, Hignight J, Hirose E, Holeczek J, Horikawa S, Hyndman A, Ichikawa AK, Ieki K, Ieva M, Iida M, Ikeda M, Ilic J, Imber J, Ishida T, Ishihara C, Ishii T, Ives SJ, Iwasaki M, Iyogi K, Izmaylov A, Jamieson B, Johnson RA, Joo KK, Jover-Manas GV, Jung CK, Kaji H, Kajita T, Kakuno H, Kameda J, Kaneyuki K, Karlen D, Kasami K, Kato I, Kearns E, Khabibullin M, Khanam F, Khotjantsev A, Kielczewska D, Kikawa T, Kim J, Kim JY, Kim SB, Kimura N, Kirby B, Kisiel J, Kitching P, Kobayashi T, Kogan G, Koike S, Konaka A, Kormos LL, Korzenev A, Koseki K, Koshio Y, Kouzuma Y, Kowalik K, Kravtsov V, Kreslo I, Kropp W, Kubo H, Kudenko Y, Kulkarni N, Kurjata R, Kutter T, Lagoda J, Laihem K, Laveder M, Lee KP, Le PT, Levy JM, Licciardi C, Lim IT, Lindner T, Litchfield RP, Litos M, Longhin A, Lopez GD, Loverre PF, Ludovici L, Lux T, Macaire M, Mahn K, Makida Y, Malek M, Manly S, Marchionni A, Marino AD, Marteau J, Martin JF, Maruyama T, Maryon T, Marzec J, Masliah P, Mathie EL, Matsumura C, Matsuoka K, Matveev V, Mavrokoridis K, Mazzucato E, McCauley N, McFarland KS, McGrew C, McLachlan T, Messina M, Metcalf W, Metelko C, Mezzetto M, Mijakowski P, Miller CA, Minamino A, Mineev O, Mine S, Missert AD, Mituka G, Miura M, Mizouchi K, Monfregola L, Moreau F, Morgan B, Moriyama S, Muir A, Murakami A, Murdoch M, Murphy S, Myslik J, Nakadaira T, Nakahata M, Nakai T, Nakajima K, Nakamoto T, Nakamura K, Nakayama S, Nakaya T, Naples D, Navin ML, Nelson B, Nicholls TC, Nishikawa K, Nishino H, Nowak JA, Noy M, Obayashi Y, Ogitsu T, Ohhata H, Okamura T, Okumura K, Okusawa T, Oser SM, Otani M, Owen RA, Oyama Y, Ozaki T, Pac MY, Palladino V, Paolone V, Paul P, Payne D, Pearce GF, Perkin JD, Pettinacci V, Pierre F, Poplawska E, Popov B, Posiadala M, Poutissou JM, Poutissou R, Przewlocki P, Qian W, Raaf JL, Radicioni E, Ratoff PN, Raufer TM, Ravonel M, Raymond M, Retiere F, Robert A, Rodrigues PA, Rondio E, Roney JM, Rossi B, Roth S, Rubbia A, Ruterbories D, Sabouri S, Sacco R, Sakashita K, Sánchez F, Sarrat A, Sasaki K, Scholberg K, Schwehr J, Scott M, Scully DI, Seiya Y, Sekiguchi T, Sekiya H, Shibata M, Shimizu Y, Shiozawa M, Short S, Siyad M, Smith RJ, Smy M, Sobczyk JT, Sobel H, Sorel M, Stahl A, Stamoulis P, Steinmann J, Still B, Stone J, Strabel C, Sulak LR, Sulej R, Sutcliffe P, Suzuki A, Suzuki K, Suzuki S, Suzuki SY, Suzuki Y, Suzuki Y, Szeglowski T, Szeptycka M, Tacik R, Tada M, Takahashi S, Takeda A, Takenaga Y, Takeuchi Y, Tanaka K, Tanaka HA, Tanaka M, Tanaka MM, Tanimoto N, Tashiro K, Taylor I, Terashima A, Terhorst D, Terri R, Thompson LF, Thorley A, Toki W, Tomaru T, Totsuka Y, Touramanis C, Tsukamoto T, Tzanov M, Uchida Y, Ueno K, Vacheret A, Vagins M, Vasseur G, Wachala T, Walding JJ, Waldron AV, Walter CW, Wanderer PJ, Wang J, Ward MA, Ward GP, Wark D, Wascko MO, Weber A, Wendell R, West N, Whitehead LH, Wikström G, Wilkes RJ, Wilking MJ, Wilson JR, Wilson RJ, Wongjirad T, Yamada S, Yamada Y, Yamamoto A, Yamamoto K, Yamanoi Y, Yamaoka H, Yanagisawa C, Yano T, Yen S, Yershov N, Yokoyama M, Zalewska A, Zalipska J, Zambelli L, Zaremba K, Ziembicki M, Zimmerman ED, Zito M, Żmuda J. Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam. Phys Rev Lett 2011; 107:041801. [PMID: 21866992 DOI: 10.1103/physrevlett.107.041801] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Indexed: 05/31/2023]
Abstract
The T2K experiment observes indications of ν(μ) → ν(e) appearance in data accumulated with 1.43×10(20) protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with |Δm(23)(2)| = 2.4×10(-3) eV(2), sin(2)2θ(23) = 1 and sin(2)2θ(13) = 0, the expected number of such events is 1.5±0.3(syst). Under this hypothesis, the probability to observe six or more candidate events is 7×10(-3), equivalent to 2.5σ significance. At 90% C.L., the data are consistent with 0.03(0.04) < sin(2)2θ(13) < 0.28(0.34) for δ(CP) = 0 and a normal (inverted) hierarchy.
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Affiliation(s)
- K Abe
- University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan
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