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Nagaoka K, Iwanaga N, Takegoshi Y, Murai Y, Kawasuji H, Miura M, Sato Y, Hatakeyama Y, Ito H, Kato Y, Shibayama N, Terasaki Y, Fujimura T, Takazono T, Kosai K, Sugano A, Morinaga Y, Yanagihara K, Mukae H, Yamamoto Y. Mortality risk factors and fulminant sub-phenotype in anaerobic bacteremia: a 10-year retrospective, multicenter, observational cohort study. Eur J Clin Microbiol Infect Dis 2024; 43:459-467. [PMID: 38172403 DOI: 10.1007/s10096-023-04743-1] [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: 09/24/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
PURPOSE During the last decade, the incidence of anaerobic bacteremia (AB) has been increasing. Patients with AB may develop complex underlying diseases, which can occasionally be accompanied by fatal or fulminant outcomes. However, the risk factors for AB-related mortality remain unclear. Herein, we sought to elucidate the risk factors for AB-related mortality. METHODS In this multicenter, retrospective, observational study, we enrolled patients with culture-proven AB from six tertiary hospitals in Japan, between January 2012 and December 2021. Data on patient and infection characteristics, laboratory findings, treatment, and outcome were collected, and their associations with mortality were analyzed. RESULTS A total of 520 participants were included. The 30-day mortality in the study cohort was 14.0% (73 patients), and malignant tumors were frequently observed comorbidities in 48% of the entire cohort. Multivariable logistic regression analysis showed a Charlson comorbidity score of > 6, serum creatinine level of > 1.17 mg/dL, and hypotension to be independent risk factors for 30-day mortality in AB (odds ratios [ORs] 2.12, 2.25, and 5.12, respectively; p < 0.05), whereas drainage significantly reduced this risk (OR, 0.28; p < 0.0001). Twelve patients (2.3% of the whole cohort and 16.4% of the deceased patients) presented with extremely rapid progression leading to fatal outcome, consistent with "fulminant AB." CONCLUSIONS This study identified acute circulatory dysfunction and performance of drainage as independent predictive factors for 30-day AB-related mortality and revealed the existence of a fulminant AB sub-phenotype. Our findings could serve as a practical guide to predict the clinical outcomes of AB.
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Affiliation(s)
- Kentaro Nagaoka
- Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama, 930-0194, Japan.
| | - N Iwanaga
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Y Takegoshi
- Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Y Murai
- Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama, 930-0194, Japan
| | - H Kawasuji
- Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama, 930-0194, Japan
| | - M Miura
- Department of Infection Control, Toyama Nishi General Hospital, Toyama, Japan
| | - Y Sato
- Department of Infection Control, Kamiichi General Hospital, Toyama, Japan
| | - Y Hatakeyama
- Department of Infection Control, Takaoka City Hospital, Toyama, Japan
| | - H Ito
- Department of Infection Control, Takaoka City Hospital, Toyama, Japan
| | - Y Kato
- Department of Infection Control, Toyama City Hospital, Toyama, Japan
| | - N Shibayama
- Department of Infection Control, Toyama City Hospital, Toyama, Japan
| | - Y Terasaki
- Department of Infection Control, Toyama City Hospital, Toyama, Japan
| | - T Fujimura
- Department of Infection Control, Toyama City Hospital, Toyama, Japan
| | - T Takazono
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - K Kosai
- Department of Laboratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - A Sugano
- Center for Clinical Research, Toyama University Hospital, Toyama, Japan
| | - Y Morinaga
- Department of Microbiology, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - K Yanagihara
- Department of Laboratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - H Mukae
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Y Yamamoto
- Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama, 930-0194, Japan
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Fukuda K, Katsurada N, Kawa Y, Satouchi M, Kaneshiro K, Matsumoto M, Takamiya R, Hatakeyama Y, Dokuni R, Matsumura K, Katsurada M, Nakata K, Yoshimura S, Tachihara M. Drug-induced interstitial lung disease after chemoimmunotherapy for extensive-stage small cell lung cancer. Heliyon 2023; 9:e20463. [PMID: 37822623 PMCID: PMC10562781 DOI: 10.1016/j.heliyon.2023.e20463] [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: 05/19/2023] [Revised: 09/15/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023] Open
Abstract
Objectives The combination of chemotherapy and immune checkpoint inhibitors (chemo-ICI) has become the new standard of treatment for extensive-stage small cell lung cancer (ES-SCLC). Recently, slight changes in interstitial shadows, defined as interstitial lung abnormalities (ILA), have been identified. In patients with ES-SCLC who received chemo-ICI, there are limited data on the incidence of drug-induced interstitial lung disease (D-ILD) in daily practice and the association between the development of D-ILD and ILA in the baseline computed tomography (CT). Materials and methods A multicenter, retrospective study was conducted to investigate the incidence of D-ILD, the risk factors for developing D-ILD, progression-free survival (PFS), and overall survival (OS) in patients with ES-SCLC who received chemo-ICI between August 2019 and November 2021. Results This study enrolled 70 patients (median age, 71 years; including 58 men) from nine institutions in Japan. There were 62 patients (89%) treated with carboplatin/etoposide/atezolizumab and 8 patients treated with carboplatin or cisplatin/etoposide/durvalumab. Twenty-nine patients (41.4%) were found to have ILA at baseline CT. Eleven patients (15.7%) developed D-ILD. The proportion of patients with ILA was significantly higher in the group who developed D-ILD than in the group who did not (9/11 (81.8%) vs. 20/59 (33.9%), respectively, P = 0.0057). In addition, the frequency of ground glass attenuation (GGA) and reticulation was higher in patients who developed D-ILD. There was no significant difference in PFS and OS between patients who developed D-ILD and those who did not (median PFS, 8.0 (95% confidence interval (CI), 5.5-9.5) months vs. 5.0 (95% CI, 4.5-5.6) months, respectively, P = 0.11 and median OS, not reached (NR) (95% CI, 8.7-NR) vs. 18.2 (95% CI, 13.2-NR) months, respectively, P = 0.20). Conclusion The incidence of D-ILD in patients with ES-SCLC who received chemo-ICI in clinical practice was higher than that in clinical trials. Patients with pre-existing ILA were more likely to develop D-ILD.
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Affiliation(s)
- Kiyoko Fukuda
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
| | - Naoko Katsurada
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
| | - Yoshitaka Kawa
- Department of Thoracic Oncology, Hyogo Cancer Center, Japan
| | | | - Kazumi Kaneshiro
- Department of Respiratory Medicine, Kita-harima Medical Center, Japan
| | | | - Rei Takamiya
- Department of Respiratory Medicine, Akashi Medical Center, Japan
| | | | - Ryota Dokuni
- Department of Respiratory Medicine, Hyogo Prefectural Awaji Medical Center, Japan
| | - Kanoko Matsumura
- Department of Respiratory Medicine, Takatsuki General Hospital, Japan
| | - Masahiro Katsurada
- Department of Internal Medicine, Hyogo Prefectural Tamba Medical Center, Japan
| | - Kyosuke Nakata
- Department of Respiratory Medicine, Konan Medical Center, Japan
| | - Sho Yoshimura
- Department of Respiratory Medicine, Steel Memorial Hirohata Hospital, Japan
| | - Motoko Tachihara
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
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Mimura C, Kaneshiro K, Fujimoto S, Dokuni R, Iwamoto N, Matsumura K, Hatakeyama Y, Kono Y, Tachihara M. TAPO in first-line osimertinib therapy and continuation of osimertinib. Thorac Cancer 2022; 14:584-591. [PMID: 36578073 PMCID: PMC9968596 DOI: 10.1111/1759-7714.14782] [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: 11/09/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Osimertinib is associated with a relatively high frequency of drug-induced interstitial lung disease (D-ILD), and transient asymptomatic pulmonary opacities (TAPO) have been reported to occur during osimertinib administration. The frequency of TAPO during first-line treatment and the pros and cons of osimertinib continuation is unknown. METHODS This was a multicenter, retrospective study. The purpose of this study was to research the frequency of TAPO and to evaluate osimertinib continuation in first-line therapy. We also evaluated progression-free survival (PFS) including subgroup analysis. RESULTS From August 2018 to December 2020, 133 patients were enrolled into the study. The median observation period was 23.2 months (0.3-48.3 months). Thirty patients (22.6%) experienced D-ILD events, including 16 patients (12.1%) with CTCAE grade 1, five patients (3.8%) with grade 2, and nine patients (6.7%) with grade 3 and above D-ILD. Among the patients with grade 1 D-ILD, 11 cases (8.3%) of TAPO were observed, and all patients succeeded in osimertinib continuation. The TAPO images were characterized by localized patchy opacities (73%). The median PFS was 22.6 months (95% confidence interval [CI]: 17.8-28.7 months). Patients with TAPO had a significantly longer PFS than patients with non-TAPO D-ILD in the multivariate analysis. CONCLUSIONS This study showed that grade 1 D-ILD might include TAPO and that patients with TAPO might have good PFS. We need to consider the possibility of osimertinib continuation when lung opacities appear.
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Affiliation(s)
- Chihiro Mimura
- Division of Respiratory Medicine, Department of Internal MedicineKobe University Graduate School of MedicineKobeJapan
| | - Kazumi Kaneshiro
- Department of Respiratory MedicineKita‐Harima Medical CenterOno‐CityJapan
| | - Shodai Fujimoto
- Division of Respiratory Medicine, Department of Internal MedicineKobe University Graduate School of MedicineKobeJapan,Department of Respiratory MedicineAkashi Medical CenterAkashiJapan
| | - Ryota Dokuni
- Department of Respiratory MedicineHyogo Prefectural Awaji Medical CenterSumotoJapan
| | - Natsuhiko Iwamoto
- Department of Respiratory MedicineTakatsuki General HospitalOsakaJapan
| | - Kanoko Matsumura
- Department of Respiratory MedicineTakatsuki General HospitalOsakaJapan
| | | | - Yuko Kono
- Department of Respiratory MedicineKita‐Harima Medical CenterOno‐CityJapan
| | - Motoko Tachihara
- Division of Respiratory Medicine, Department of Internal MedicineKobe University Graduate School of MedicineKobeJapan
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Takamiya R, Fukuda K, Katsurada N, Kawa Y, Satouchi M, Kaneshiro K, Matsumoto M, Hatakeyama Y, Dokuni R, Matsumura K, Katsurada M, Nakata K, Yoshimura S, Tachihara M. EP14.05-022 The Drug Induced Interstitial Lung Disease in Chemoimmunotherapy for Extensive-Stage Small Cell Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.997] [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: 11/29/2022]
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Ikeda M, Hatakeyama Y, Murakami S, Hashimoto R, Tauchi S, Yonekura Y, Ohnishi H. Surgical repair of hepatic hydrothorax caused by diaphragmatic fistula. Respir Med Case Rep 2020; 32:101325. [PMID: 33409122 PMCID: PMC7773676 DOI: 10.1016/j.rmcr.2020.101325] [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: 12/01/2020] [Accepted: 12/16/2020] [Indexed: 11/29/2022] Open
Abstract
A 65-year-old woman visited our hospital complaining of dyspnea several days before admission. A chest X-ray showed massive right-sided pleural effusion, which was not observed 1 month previously. Although the patient had never been diagnosed with cirrhosis at regular visits, the patient was diagnosed with primary biliary cholangitis at admission. Hepatic hydrothorax was suspected because pleural effusion was transudative. A diaphragmatic fistula was confirmed and closed by thoracoscopy. Pleural effusion did not reappear after this procedure. Existence of a diaphragmatic defect should be confirmed under direct vision if pleural effusion accumulates acutely or becomes beyond control.
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Affiliation(s)
- Miho Ikeda
- Department of Respiratory Medicine, Akashi Medical Center, 743-33 Okubocho Yagi, Akashi, Hyogo, 674-0063, Japan
| | - Yukihisa Hatakeyama
- Department of Respiratory Medicine, Akashi Medical Center, 743-33 Okubocho Yagi, Akashi, Hyogo, 674-0063, Japan
| | - Shoko Murakami
- Department of Respiratory Medicine, Akashi Medical Center, 743-33 Okubocho Yagi, Akashi, Hyogo, 674-0063, Japan
| | - Rika Hashimoto
- Department of Respiratory Medicine, Akashi Medical Center, 743-33 Okubocho Yagi, Akashi, Hyogo, 674-0063, Japan
| | - Shunsuke Tauchi
- Department of Thoracic Surgery, Akashi Medical Center, 743-33 Okubocho Yagi, Akashi, Hyogo, 674-0063, Japan
| | - Yuriko Yonekura
- Department of Nephrology Medicine, Akashi Medical Center, 743-33 Okubocho Yagi, Akashi, Hyogo, 674-0063, Japan
| | - Hisashi Ohnishi
- Department of Respiratory Medicine, Akashi Medical Center, 743-33 Okubocho Yagi, Akashi, Hyogo, 674-0063, Japan
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Katsurada N, Tachihara M, Hatakeyama Y, Koyama K, Yumura M, Kiriu T, Dokuni R, Hazama D, Tokunaga S, Tamura D, Nakata K, Yamamoto M, Kamiryo H, Kobayashi K, Tanaka Y, Maniwa Y, Nishimura Y. Feasibility Study of Adjuvant Chemotherapy with Carboplatin and Nab-Paclitaxel for Completely Resected NSCLC. Cancer Manag Res 2020; 12:777-782. [PMID: 32099473 PMCID: PMC7007497 DOI: 10.2147/cmar.s239647] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 01/22/2020] [Indexed: 01/16/2023] Open
Abstract
Purpose Adjuvant chemotherapy with cisplatin (CDDP) plus vinorelbine is the standard regimen for the treatment of non-small cell lung cancer (NSCLC). However, CDDP elicits severe toxic effects, including emesis, neurotoxicity, and renal damage; carboplatin (CBDCA) may be a feasible alternative for CDDP-unfit patients. CBDCA plus paclitaxel (PTX) adjuvant chemotherapy showed a survival benefit for patients with stage IB tumors >4 cm in size, while CBDCA plus nanoparticle albumin-bound (nab)-PTX showed greater efficacy and lower neurotoxicity than CBDCA plus PTX in advanced NSCLC. Here, we investigated the feasibility of using CBDCA plus nab-PTX as adjuvant chemotherapy for NSCLC. Patients and Methods Patients with completely resected stage II or III NSCLC, with an Eastern Cooperative Oncology Group performance status of 0–1 and adequate kidney function, received four cycles of postoperative adjuvant chemotherapy with CBDCA (AUC=5 mg/mL/min, on day 1) and nab-PTX (100 mg/m2, on days 1, 8, and 15) administered every 4 weeks within 8 weeks after surgery. The study was designed as a prospective, single-center, Phase II study. The primary endpoint was the completion rate of chemotherapy; secondary endpoints were two-year relapse-free survival (RFS) and safety. The expected completion rate was 80%, with a 50% lower limit. Results Of 21 enrolled patients, 18 (85.7%) were CDDP-unfit owing to age (≥75 years old [n=11, 52.4%]) or mild renal impairment (n=7, 33.3%). Nineteen of the 21 enrolled patients were assigned to the intervention. The most common grade 3 or 4 adverse events were neutropenia (n=15, 78.9%) and anemia (n=3, 15.8%). The completion rate for the four cycles was 63.2% (95% CI, 38.4–83.7). Two-year RFS was 56.8% (95% CI, 29.7–76.9). Conclusion The completion rate for CBDCA plus nab-PTX as adjuvant chemotherapy for CDDP-unfit NSCLC patients did not reach treatment feasibility. Further dose modifications may be required in future studies.
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Affiliation(s)
- Naoko Katsurada
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Motoko Tachihara
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yukihisa Hatakeyama
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kiyoko Koyama
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masako Yumura
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tatsunori Kiriu
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryota Dokuni
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Daisuke Hazama
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shuntaro Tokunaga
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Daisuke Tamura
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kyosuke Nakata
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masatsugu Yamamoto
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroshi Kamiryo
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kazuyuki Kobayashi
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yugo Tanaka
- Division of General Theocratic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshimasa Maniwa
- Division of General Theocratic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshihiro Nishimura
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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Katsurada N, Ohnishi H, Ikeda M, Jimbo N, Hatakeyama Y, Okamura K. Primary pleural synovial sarcoma with repeated resection leading to long-term survival. Respirol Case Rep 2019; 7:e00480. [PMID: 31452897 PMCID: PMC6702318 DOI: 10.1002/rcr2.480] [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: 06/03/2019] [Revised: 07/04/2019] [Accepted: 08/04/2019] [Indexed: 11/22/2022] Open
Abstract
Primary pleural synovial sarcoma is a malignant tumour and thought to be more aggressive than synovial sarcoma which occurs in extremities. Its treatment strategy has not been fully established because of its rarity. We report a primary pleural synovial sarcoma case which achieved a long-term survival with repeated surgery of recurrent pleural tumour. A 39-year-old man presented with a gradually enlarged tumour in the left hemithorax. The tumour was resected and diagnosed as primary pleural synovial sarcoma. The tumour was slowly growing and repeatedly recurrent in the left pleura. The surgical resections for the recurrent tumours were performed 6 years and 11 years after the initial surgery. Intriguingly, recurrent tumour which developed after second surgery exhibited temporally spontaneous regression. Our patient remains alive 12 years after the initial surgery. Repeated resection of metastatic lesion can achieve long survival in primary pleural synovial sarcoma.
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Affiliation(s)
- Naoko Katsurada
- Division of Respiratory Medicine, Department of Internal MedicineKobe University Graduate School of MedicineKobeJapan
| | - Hisashi Ohnishi
- Department of Respiratory MedicineAkashi Medical CenterAkashiJapan
| | - Miho Ikeda
- Department of Respiratory MedicineAkashi Medical CenterAkashiJapan
| | - Naoe Jimbo
- Department of Diagnostic PathologyKobe University Graduate School of MedicineKobeJapan
| | | | - Kayoko Okamura
- Department of Respiratory MedicineAkashi Medical CenterAkashiJapan
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Tachihara M, Kiriu T, Hata A, Hatakeyama Y, Nakata K, Nagano T, Yamamoto M, Kobayashi K, Ohnishi H, Katakami N, Nishimura Y. A multi-center, Phase II trial of nab-paclitaxel and gemcitabine in patients with non-small-cell lung cancer previously treated with platinum-based chemotherapy. Cancer Manag Res 2019; 11:7135-7140. [PMID: 31534366 PMCID: PMC6681155 DOI: 10.2147/cmar.s208224] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 03/10/2019] [Accepted: 07/12/2019] [Indexed: 12/16/2022] Open
Abstract
Background Nanoparticle albumin-bound paclitaxel (nab-PTX) plus gemcitabine (GEM) significantly improved overall survival in patients with metastatic pancreatic adenocarcinoma. Anti-tumor synergy between GEM and nab-PTX was recently demonstrated in a mouse model. We planned to assess the efficacy and safety of the combination of nab-PTX + GEM in patients with non-small-cell lung cancer (NSCLC) previously treated with platinum-based chemotherapy. Methods Patients with advanced NSCLC with progressive disease after platinum-based chemotherapy, an Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 or 1, and adequate kidney, liver and bone marrow function were eligible. Treatment consisted of nab-PTX (100 mg/m2) + GEM (1000 mg/m2) on days 1 and 8 of each 3-week cycle until progression disease or unacceptable toxicity occurred. The primary endpoint was progression-free survival (PFS). Results Of the 28 patients enrolled, all were evaluable for response and toxicity. The median age was 68 years (range 47–79), and 23 were male and 5 female. The histologic subtypes were: adenocarcinoma in 19 patients, and squamous cell carcinoma in 9 patients. Seventeen patients had ECOG PS 1 and 11 patients had PS 0. Twenty-four patients were second line and 4 patients were third line. The median number of cycles administered was 4 (range 1–10). The overall response rate was 17.9%. The disease control rate was 67.9%. The median progression-free survival was 3.1 months (95% confidence interval [CI] =1.6–4.1). Adverse events were generally tolerable except grade 3 interstitial pneumonia with in 4 patients (14.3%). Conclusion The efficacy of nab-PTX in combination with GEM in advanced second or third-line NSCLC patients was limited and the frequent occurrence of interstitial pneumonia was unacceptable.
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Affiliation(s)
- Motoko Tachihara
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Tatsunori Kiriu
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Akito Hata
- Department of Medical Oncology, Kobe City Medical Center General Hospital, Kobe, Hyogo 650-0047, Japan
| | - Yukihisa Hatakeyama
- Department of Respiratory Medicine, Akashi Medical Center, Akashi, Hyogo 674-0063, Japan
| | - Kyosuke Nakata
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Tatsuya Nagano
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Masatsugu Yamamoto
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Kazuyuki Kobayashi
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Hisashi Ohnishi
- Department of Respiratory Medicine, Akashi Medical Center, Akashi, Hyogo 674-0063, Japan
| | - Nobuyuki Katakami
- Department of Medical Oncology, Kobe City Medical Center General Hospital, Kobe, Hyogo 650-0047, Japan
| | - Yoshihiro Nishimura
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
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Hatakeyama Y, Ohnishi H, Suda K, Okamura K, Shimada T, Yoshimura S. Nivolumab-induced acute-onset type 1 diabetes mellitus as an immune-related adverse event: A case report. J Oncol Pharm Pract 2018; 25:2023-2026. [PMID: 30526346 DOI: 10.1177/1078155218816777] [Citation(s) in RCA: 4] [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] [Indexed: 11/16/2022]
Abstract
A 60-year-old Japanese man, with no medical or family history of diabetes, presented with acute-onset type 1 diabetes following nivolumab treatment for advanced non-small-cell lung cancer. During cycle 35 of nivolumab therapy, his glycated hemoglobin level increased from 7.6% to 9.1% in one month. Test results for islet-related and anti-thyroid peroxidase antibodies were negative. A glucagon tolerance test showed insulin dependency. Type 1 diabetes after anti-programmed death-ligand 1 antibody administration is an immune-related adverse event, and numerous reports suggest that fulminant type 1 diabetes can develop in these patients. However, there are few reports of acute-onset type 1 diabetes mellitus.
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Affiliation(s)
| | - Hisashi Ohnishi
- Department of Respiratory Medicine, Akashi Medical Center, Akashi, Japan
| | - Kentaro Suda
- Department of Diabetes and Endocrinology, Akashi Medical Center, Akashi, Japan
| | - Kayoko Okamura
- Department of Respiratory Medicine, Akashi Medical Center, Akashi, Japan
| | - Temiko Shimada
- Department of Respiratory Medicine, Akashi Medical Center, Akashi, Japan
| | - Sho Yoshimura
- Department of Respiratory Medicine, Akashi Medical Center, Akashi, Japan
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Kiriu T, Tachihara M, Hata A, Hatakeyama Y, Nagano T, Yamamoto M, Kobayashi K, Ohnishi H, Katakami N, Nishimura Y. P1.01-48 Nab-Paclitaxel Plus Gemcitabine in Advanced NSCLC After Platinum-Based Chemotherapy: Final Results and Caveolin-1 Expression. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.604] [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: 11/15/2022]
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Hatakeyama Y, Tachihara M, Kiriu T, Hata A, Nagano T, Yamamoto M, Kobayashi K, Ohnishi H, Katakami N, Nishimura Y. 170P A phase II trial of nab-paclitaxel and gemcitabine in patients with non-small cell lung cancer previously treated with platinum based chemotherapy. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30444-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kaimoto T, Hatakeyama Y, Takahashi K, Imagawa T, Tominaga M, Ohta T. Involvement of transient receptor potential A1 channel in algesic and analgesic actions of the organic compound limonene. Eur J Pain 2016; 20:1155-65. [DOI: 10.1002/ejp.840] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2015] [Indexed: 12/26/2022]
Affiliation(s)
- T. Kaimoto
- Department of Veterinary Pharmacology; Faculty of Agriculture; Tottori University; Tottori Japan
| | - Y. Hatakeyama
- Department of Veterinary Pharmacology; Faculty of Agriculture; Tottori University; Tottori Japan
| | - K. Takahashi
- Department of Veterinary Pharmacology; Faculty of Agriculture; Tottori University; Tottori Japan
- Division of Functional Fungal Physiology and Pharmacology; Fungus/Mushroom Resource and Research Center; Faculty of Agriculture; Tottori University; Tottori Japan
| | - T. Imagawa
- Biological Chemistry; Department of Chemistry; Faculty of Science; Hokkaido University; Sapporo Japan
| | - M. Tominaga
- Division of Cell Signaling; Okazaki Institute for Integrative Bioscience (National Institute for Physiological Sciences); National Institutes of Natural Sciences; Okazaki Japan
| | - T. Ohta
- Department of Veterinary Pharmacology; Faculty of Agriculture; Tottori University; Tottori Japan
- Division of Functional Fungal Physiology and Pharmacology; Fungus/Mushroom Resource and Research Center; Faculty of Agriculture; Tottori University; Tottori Japan
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Hatakeyama Y, Miyano I, Kataoka H, Nakajima N, Watabe T, Yasuda N, Okuhara Y. Use of a Latent Topic Model for Characteristic Extraction from Health Checkup Questionnaire Data. Methods Inf Med 2015; 54:515-21. [PMID: 26063536 DOI: 10.3414/me15-01-0023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 05/29/2015] [Indexed: 12/19/2022]
Abstract
OBJECTIVES When patients complete questionnaires during health checkups, many of their responses are subjective, making topic extraction difficult. Therefore, the purpose of this study was to develop a model capable of extracting appropriate topics from subjective data in questionnaires conducted during health checkups. METHODS We employed a latent topic model to group the lifestyle habits of the study participants and represented their responses to items on health checkup questionnaires as a probability model. For the probability model, we used latent Dirichlet allocation to extract 30 topics from the questionnaires. According to the model parameters, a total of 4381 study participants were then divided into groups based on these topics. Results from laboratory tests, including blood glucose level, triglycerides, and estimated glomerular filtration rate, were compared between each group, and these results were then compared with those obtained by hierarchical clustering. RESULTS If a significant (p < 0.05) difference was observed in any of the laboratory measurements between groups, it was considered to indicate a questionnaire response pattern corresponding to the value of the test result. A comparison between the latent topic model and hierarchical clustering grouping revealed that, in the latent topic model method, a small group of participants who reported having subjective signs of urinary disorder were allocated to a single group. CONCLUSIONS The latent topic model is useful for extracting characteristics from a small number of groups from questionnaires with a large number of items. These results show that, in addition to chief complaints and history of past illness, questionnaire data obtained during medical checkups can serve as useful judgment criteria for assessing the conditions of patients.
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Affiliation(s)
- Y Hatakeyama
- Yutaka Hatakeyama, Center of Medical Information Science, Kochi University Medical School, Oko-cho Kohasu, Nankoku, Kochi 783-8505, Japan, E-mail:
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14
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Hatakeyama Y, Kataoka H, Nakajima N, Watabe T, Fujimoto S, Okuhara Y. Prediction model for glucose metabolism based on lipid metabolism. Methods Inf Med 2014; 53:357-63. [PMID: 24986162 DOI: 10.3414/me14-01-0034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 04/18/2014] [Indexed: 11/09/2022]
Abstract
OBJECTIVES We developed a robust, long-term clinical prediction model to predict conditions leading to early diabetes using laboratory values other than blood glucose and insulin levels. Our model protects against missing data and noise that occur during long-term analysis. METHODS RESULTS of a 75-g oral glucose tolerance test (OGTT) were divided into three groups: diabetes, impaired glucose tolerance (IGT), and normal (n = 114, 235, and 325, respectively). For glucose metabolic and lipid metabolic parameters, near 30-day mean values and 10-year integrated values were compared. The relation between high-density lipoprotein cholesterol (HDL-C) and variations in HbA1c was analyzed in 158 patients. We also constructed a state space model consisting of an observation model (HDL-C and HbA1c) and an internal model (disorders of lipid metabolism and glucose metabolism) and applied this model to 116 cases. RESULTS The root mean square error between the observed HbA1c and predicted HbA1c was 0.25. CONCLUSIONS In the observation model, HDL-C levels were useful for prediction of increases in HbA1c. Even with numerous missing values over time, as occurs in clinical practice, clinically valid predictions can be made using this state space model.
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Affiliation(s)
- Y Hatakeyama
- Yutaka Hatakeyama, Center of Medical Information Science, Kochi University Medical School, Oko-cho Kohasu, Nankoku, Kochi, Kochi 783-8505, Japan, E-mail:
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15
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Hatakeyama Y, Kobayashi K, Nagano T, Tamura D, Yamamoto M, Tachihara M, Kotani Y, Nishimura Y. Synergistic effects of pemetrexed and amrubicin in non-small cell lung cancer cell lines: Potential for combination therapy. Cancer Lett 2013; 343:74-9. [PMID: 24139969 DOI: 10.1016/j.canlet.2013.09.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 09/10/2013] [Accepted: 09/14/2013] [Indexed: 10/26/2022]
Abstract
The purpose is to examine the synergistic effect of pemetrexed (PEM) and amrubicin (AMR) on the proliferation of lung cancer cell lines. In vitro, dose-dependent synergistic effects of concurrent PEM and AMRol, which is an active metabolite of AMR were observed in A549 and H460 cells. In real-time RT-qPCR analysis and western blotting, expression of the target enzymes of PEM were suppressed in cells treated with amrubicinol alone. In vivo, AMR/PEM treatment also showed synergistic antitumor activity both in A549-bearing and H520-bearing mice. PEM and AMR work synergistically to inhibit the proliferation of several different lung cancer cell lines.
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Affiliation(s)
- Yukihisa Hatakeyama
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Kazuyuki Kobayashi
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.
| | - Tatsuya Nagano
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Daisuke Tamura
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Masatsugu Yamamoto
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Motoko Tachihara
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Yoshikazu Kotani
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Yoshihiro Nishimura
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
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Oikawa J, Niwano S, Ishizue N, Yoshizawa T, Satoh A, Kurokawa S, Hatakeyama Y, Fukaya H, Niwano H. Use of statins suppress the shorting of the fibrillation cycle length in patients with new-onset atrial fibrillation -Possible anti-remodeling effect of statin for atrial structural remodeling. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p4964] [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: 11/14/2022] Open
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Okumura A, Yoshida M, Kiyohara K, Takahashi N, Hatakeyama Y, Htun N, Sato Y, Kojimahara N, Yamaguch N. P319 Minds Project As Guideline Clearinghouse - Evaluation Of Clinical Practice Guidelines Developed In Japan. BMJ Qual Saf 2013. [DOI: 10.1136/bmjqs-2013-002293.255] [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: 11/04/2022]
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Hatakeyama Y, Okumura A, Takahashi N, Yoshida M, Kojimahara N, Kiyohara K, Sato Y, Htun N, Group MINDS, Yamaguchi N. P340 Sources Of Information For Development Of Clinical Practice Guidelines In Japan. BMJ Qual Saf 2013. [DOI: 10.1136/bmjqs-2013-002293.262] [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: 11/03/2022]
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Yoshida M, Hatakeyama Y, Okumura A, Takahashi N, Kojimahara N, Kiyohara K, Sato Y, Htun N, Yamaguchi N. P321 Dissemination Of The Clinical Practice Guidelines Development Methodology Based On body Of Evidence In Japan ∼ Development Of Educational Package For Clinical Practice Guidelines And Workshop Program. BMJ Qual Saf 2013. [DOI: 10.1136/bmjqs-2013-002293.256] [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: 11/04/2022]
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20
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Hori S, Nishiumi S, Kobayashi K, Shinohara M, Hatakeyama Y, Kotani Y, Hatano N, Maniwa Y, Nishio W, Bamba T, Fukusaki E, Azuma T, Takenawa T, Nishimura Y, Yoshida M. A metabolomic approach to lung cancer. Lung Cancer 2011; 74:284-92. [PMID: 21411176 DOI: 10.1016/j.lungcan.2011.02.008] [Citation(s) in RCA: 147] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 02/03/2011] [Accepted: 02/13/2011] [Indexed: 02/07/2023]
Abstract
Lung cancer is one of the most common cancers in the world, but no good clinical markers that can be used to diagnose the disease at an early stage and predict its prognosis have been found. Therefore, the discovery of novel clinical markers is required. In this study, metabolomic analysis of lung cancer patients was performed using gas chromatography mass spectrometry. Serum samples from 29 healthy volunteers and 33 lung cancer patients with adenocarcinoma (n=12), squamous cell carcinoma (n=11), or small cell carcinoma (n=10) ranging from stage I to stage IV disease and lung tissue samples from 7 lung cancer patients including the tumor tissue and its surrounding normal tissue were used. A total of 58 metabolites (57 individual metabolites) were detected in serum, and 71 metabolites were detected in the lung tissue. The levels of 23 of the 58 serum metabolites were significantly changed in all lung cancer patients compared with healthy volunteers, and the levels of 48 of the 71 metabolites were significantly changed in the tumor tissue compared with the non-tumor tissue. Partial least squares discriminant analysis, which is a form of multiple classification analysis, was performed using the serum sample data, and metabolites that had characteristic alterations in each histological subtype and disease stage were determined. Our results demonstrate that changes in metabolite pattern are useful for assessing the clinical characteristics of lung cancer. Our results will hopefully lead to the establishment of novel diagnostic tools.
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Affiliation(s)
- Suya Hori
- Division of Respiratory Medicine, Kobe University Graduate School of Medicine, Japan
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Nagano T, Kotani Y, Kobayashi K, Hatakeyama Y, Hori S, Kasai D, Funada Y, Nishimura H, Kondoh T, Nishimura Y. Long-term outcome after multidisciplinary approach for leptomeningeal carcinomatosis in a non-small cell lung cancer patient with poor performance status. Intern Med 2011; 50:3019-22. [PMID: 22185996 DOI: 10.2169/internalmedicine.50.5903] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The present study describes a case of a 60-year-old Japanese man who was histologically diagnosed with lung adenocarcinoma harboring L858R mutation of epidermal growth factor receptor. He was successfully treated with gefitinib, but eventually developed leptomeningeal carcinomatosis. He underwent ventriculoperitoneal shunting for hydrocephalus and received erlotinib in place of gefitinib with concurrent whole brain radiotherapy; this resulted in dramatic improvement in his symptoms and performance status from four to one and he survived for as long as 13.6 months after the initiation of erlotinib therapy. This multidisciplinary approach may be particularly useful in terms of increasing survival and improving quality of life.
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Affiliation(s)
- Tatsuya Nagano
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
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Hatakeyama J, Fukumoto S, Nakamura T, Haruyama N, Suzuki S, Hatakeyama Y, Shum L, Gibson CW, Yamada Y, Kulkarni AB. Synergistic roles of amelogenin and ameloblastin. J Dent Res 2009; 88:318-22. [PMID: 19407150 DOI: 10.1177/0022034509334749] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Amelogenin and ameloblastin, the major enamel matrix proteins, are important for enamel mineralization. To identify their synergistic roles in enamel development, we generated Amel X(-/-)/Ambn(-/-) mice. These mice showed additional enamel defects in comparison with Amel X(-/-) or Ambn(-/-) mice. In 7-day-old Amel X(-/-)/Ambn(-/-) mice, not only was the ameloblast layer irregular and detached from the enamel surface, as in Ambn(-/-), but also, the enamel width was significantly reduced in the double-null mice as compared with Amel X(-/-) or Ambn(-/-) mice. Proteomic analysis of the double-null teeth revealed increased levels of RhoGDI (Arhgdia), a Rho-family-specific guanine nucleotide dissociation inhibitor, which is involved in important cellular processes, such as cell attachment. Both Amel X(-/-)/Ambn(-/-) mice and Ambn(-/-) mice displayed positive staining with RhoGDI antibody in the irregularly shaped ameloblasts detached from the matrix. Ameloblastin-regulated expression of RhoGDI suggests that Rho-mediated signaling pathway might play a role in enamel formation.
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Affiliation(s)
- J Hatakeyama
- Functional Genomics Section, Laboratory of Cell and Developmental Biology, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA
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Niwano S, Wakisaka Y, Niwano H, Fukaya H, Kurokawa S, Kiryu M, Hatakeyama Y, Izumi T. Prognostic significance of frequent premature ventricular contractions originating from the ventricular outflow tract in patients with normal left ventricular function. Heart 2009; 95:1230-7. [DOI: 10.1136/hrt.2008.159558] [Citation(s) in RCA: 204] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Ramos G, Hatakeyama Y, Dong F, Hirota K. Hyperbox clustering with Ant Colony Optimization (HACO) method and its application to medical risk profile recognition. Appl Soft Comput 2009. [DOI: 10.1016/j.asoc.2008.09.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
OBJECTIVE Hydroxiapatite (HA) has been suggested as a useful biomaterial to support the regeneration of tissues. In this study, we investigated the adhesion of periodontal ligament (PDL) cells on octacalcium phosphate (OCP) and its hydrolyzed apatitic product (HL), which are known precursors of HA. METHODS Rat PDL cells were cultured on OCP or HL-coated dishes. Cell proliferation and adhesion and mRNA expression of collagen I, fibronectin integrin subunits were examined. Cell adhesion inhibition assays were carried out by GRGDSPK (Gly-Arg-Gly-Asp-Ser-Pro-Lys). RESULTS In early culture period, the cell number of PDL cells was lower on OCP and HL than that on control without any coating. However, the cell number on OCP or HL caught up with control later period. mRNA expression level of collagen I and fibronectin on OCP and HL were similar among OCP HL and control, although they differed early in the culture period. Integrin subunits were expressed on both OCP and HL as well as on control. Cell adhesion was inhibited by RGD inhibitor peptide. CONCLUSION Our findings indicated that rat PDL cells produce collagen I and fibronectin on OCP and HL, and then show increased cell numbers depending on adhesion to the matrices through integrins.
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Affiliation(s)
- J Hatakeyama
- Division of Craniofacial Development and Regeneration, Tohoku University Graduate School of Dentistry, Sendai, Japan.
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Kakeda S, Korogi Y, Ohnari N, Hatakeyama Y, Moriya J, Oda N, Nishino K, Miyamoto W. 3D digital subtraction angiography of intracranial aneurysms: comparison of flat panel detector with conventional image intensifier TV system using a vascular phantom. AJNR Am J Neuroradiol 2007; 28:839-43. [PMID: 17494653 PMCID: PMC8134332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
BACKGROUND AND PURPOSE Compared with the image intensifier (I.I.)-TV system, the flat panel detector (FPD) system of direct conversion type has several theoretic advantages, such as higher spatial resolution, wide dynamic range, and no image distortion. The purpose of this study was to compare the image quality of 3D digital subtraction angiography (DSA) in the FPD and conventional I.I.-TV systems using a vascular phantom. MATERIALS AND METHODS An anthropomorphic vascular phantom was designed to simulate the various intracranial aneurysms with aneurysmal bleb. The tubes of this vascular phantom were filled with 2 concentrations of contrast material (300 and 150 mg I/mL), and we obtained 3D DSA using the FPD and I.I.-TV systems. First, 2 blinded radiologists compared the volume-rendering images for 3D DSA on the FPD and I.I.-TV systems, looking for pseudostenosis artifacts. Then, 2 other radiologists independently evaluated both systems for the depiction of the simulated aneurysm and aneurysmal bleb using a 5-point scale. RESULTS For the degree of the pseudostenosis artifacts at the M1 segment of the middle cerebral artery at 300 mg I/mL, 3D DSA with FPD system showed mild stenoses, whereas severe stenoses were observed at 3D DSA with I.I.-TV system. At both concentrations, the FPD system was significantly superior to I.I.-TV system regarding the depiction of aneurysm and aneurysmal bleb. CONCLUSION Compared with the I.I.-TV system, the FPD system could create high-resolution 3D DSA combined with a reduction of the pseudostenosis artifacts.
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Affiliation(s)
- S Kakeda
- Department of Radiology, University of Occupational and Environmental Health School of Medicine, Kitakyushu, Japan.
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27
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Hatakeyama Y, Kakeda S, Ohnari N, Moriya J, Oda N, Nishino K, Miyamoto W, Korogi Y. Reduction of radiation dose for cerebral angiography using flat panel detector of direct conversion type: a vascular phantom study. AJNR Am J Neuroradiol 2007; 28:645-50. [PMID: 17416814 PMCID: PMC7977368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
BACKGROUND AND PURPOSE Compared with image intensifier television (I.I.-TV) system, an angiography system using the flat panel detector (FPD) of direct conversion type has a high spatial resolution, which may improve image quality, reduce patient exposure, or both. Our purpose was to evaluate the detection of simulated aneurysmal blebs under dose reduction with the FPD system in comparison with the I.I.-TV system. MATERIALS AND METHODS A vascular phantom was designed to simulate various intracranial aneurysms with and without blebs, and this phantom was filled with 3 different concentrations of contrast material (300, 150, and 100 mg I/mL). 2D digital subtraction angiography (DSA) at low-dose mode of FPD system was compared with 2D DSA at a standard-dose mode of FPD system and a conventional mode of I.I.-TV system. Data analysis was based on 171 observations (57 aneurysms [20 with bleb and 37 without bleb] x 3 contrast material concentrations) by each of 7 radiologists, and the detection performances of blebs were compared using a receiver operating characteristic (ROC) analysis. RESULTS The mean dose measurements with a phantom during 2D DSA were 0.36 mGy/frame with low-dose mode of FPD system, 0.72 mGy/frame with standard-dose mode of FPD system and 0.76 mGy/frame with I.I.-TV system. The mean Az at 100 mg I/mL was significantly higher for low-dose mode of FPD than for conventional-dose mode of I.I.-TV mean Az, 0.85 versus 0.56; P < .01), though differences were not significant with 150 and 300 mg I/mL between both systems. CONCLUSION The FPD system allows a considerable dose reduction during 2D DSA without loss of the image quality.
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Affiliation(s)
- Y Hatakeyama
- Department of Radiology, University of Occupational and Environmental Health School of Medicine, Kitakyushu, Japan
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Hatakeyama J, Philp D, Hatakeyama Y, Haruyama N, Shum L, Aragon MA, Yuan Z, Gibson CW, Sreenath T, Kleinman HK, Kulkarni AB. Amelogenin-mediated regulation of osteoclastogenesis, and periodontal cell proliferation and migration. J Dent Res 2006; 85:144-9. [PMID: 16434732 DOI: 10.1177/154405910608500206] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We previously reported that amelogenin isoforms M180 and leucine-rich amelogenin peptide (LRAP) are expressed in the periodontal region, and that their absence is associated with increased cementum defects in amelogenin-knockout (KO) mice. The aim of the present study was to characterize the functions of these isoforms in osteoclastogenesis and in the proliferation and migration of cementoblast/periodontal ligament cells. The co-cultures of wild-type (WT) osteoclast progenitor and KO cementoblast/periodontal ligament cells displayed more tartrate-resistant acid phosphatase (TRAP)-positive cells than the co-cultures of WT cells. The addition of LRAP to both co-cultures significantly reduced RANKL expression and the TRAP-positive cells. Proliferation and migration rates of the KO cementoblast/periodontal ligament cells were lower than those of WT cells and increased with the addition of either LRAP or P172 (a porcine homolog of mouse M180). Thus, we demonstrate the regulation of osteoclastogenesis by LRAP, and the proliferation and migration of cementoblast/periodontal ligament cells by LRAP and P172.
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Affiliation(s)
- J Hatakeyama
- Functional Genomics Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD 20892, USA
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Gando Y, Fukuda S, Fukuda Y, Ishitsuka M, Itow Y, Kajita T, Kameda J, Kaneyuki K, Kobayashi K, Koshio Y, Miura M, Moriyama S, Nakahata M, Nakayama S, Namba T, Obayashi Y, Okada A, Ooyabu T, Saji C, Sakurai N, Shiozawa M, Suzuki Y, Takeuchi H, Takeuchi Y, Totsuka Y, Yamada S, Desai S, Earl M, Kearns E, Messier MD, Stone JL, Sulak LR, Walter CW, Goldhaber M, Barszczak T, Casper D, Gajewski W, Kropp WR, Mine S, Liu DW, Smy MB, Sobel HW, Vagins MR, Gago A, Ganezer KS, Hill J, Keig WE, Ellsworth RW, Tasaka S, Kibayashi A, Learned JG, Matsuno S, Takemori D, Hayato Y, Ichikawa AK, Ishii T, Kobayashi T, Maruyama T, Nakamura K, Oyama Y, Sakuda M, Yoshida M, Kohama M, Iwashita T, Suzuki AT, Inagaki T, Kato I, Nakaya T, Nishikawa K, Haines TJ, Dazeley S, Hatakeyama S, Svoboda R, Blaufuss E, Chen ML, Goodman JA, Guillian G, Sullivan GW, Turcan D, Scholberg K, Habig A, Ackermann M, Jung CK, Martens K, Malek M, Mauger C, McGrew C, Sharkey E, Viren B, Yanagisawa C, Toshito T, Mitsuda C, Miyano K, Shibata T, Kajiyama Y, Nagashima Y, Nitta K, Takita M, Kim HI, Kim SB, Yoo J, Okazawa H, Ishizuka T, Etoh M, Hasegawa T, Inoue K, Ishihara K, Shirai J, Suzuki A, Koshiba M, Hatakeyama Y, Ichikawa Y, Koike M, Nishijima K, Ishino H, Morii M, Nishimura R, Watanabe Y, Kielczewska D, Berns HG, Boyd SC, Stachyra AL, Wilkes RJ. Search for nu(e) from the sun at Super-Kamiokande-I. Phys Rev Lett 2003; 90:171302. [PMID: 12786067 DOI: 10.1103/physrevlett.90.171302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2002] [Indexed: 05/24/2023]
Abstract
We present the results of a search for low energy nu(e) from the Sun using 1496 days of data from Super-Kamiokande-I. We observe no significant excess of events and set an upper limit for the conversion probability to nu(e) of the 8B solar neutrino. This conversion limit is 0.8% (90% C.L.) of the standard solar model's neutrino flux for total energy=8-20 MeV. We also set a flux limit for monochromatic nu(e) for E(nu(e))=10-17 MeV.
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Affiliation(s)
- Y Gando
- Research Center for Neutrino Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
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30
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Malek M, Morii M, Fukuda S, Fukuda Y, Ishitsuka M, Itow Y, Kajita T, Kameda J, Kaneyuki K, Kobayashi K, Koshio Y, Miura M, Moriyama S, Nakahata M, Nakayama S, Namba T, Okada A, Ooyabu T, Saji C, Sakurai N, Shiozawa M, Suzuki Y, Takeuchi H, Takeuchi Y, Totsuka Y, Yamada S, Desai S, Earl M, Kearns E, Messier MD, Stone JL, Sulak LR, Walter CW, Goldhaber M, Barszczak T, Casper D, Gajewski W, Kropp WR, Mine S, Liu DW, Smy MB, Sobel HW, Vagins MR, Gago A, Ganezer KS, Keig WE, Ellsworth RW, Tasaka S, Kibayashi A, Learned JG, Matsuno S, Takemori D, Hayato Y, Ishii T, Kobayashi T, Maruyama T, Nakamura K, Obayashi Y, Oyama Y, Sakuda M, Yoshida M, Kohama M, Iwashita T, Suzuki AT, Ichikawa A, Inagaki T, Kato I, Nakaya T, Nishikawa K, Haines TJ, Dazeley S, Hatakeyama S, Svoboda R, Blaufuss E, Goodman JA, Guillian G, Sullivan GW, Turcan D, Scholberg K, Habig A, Ackermann M, Hill J, Jung CK, Martens K, Mauger C, McGrew C, Sharkey E, Viren B, Yanagisawa C, Toshito T, Mitsuda C, Miyano K, Shibata T, Kajiyama Y, Nagashima Y, Nitta K, Takita M, Kim HI, Kim SB, Yoo J, Okazawa H, Ishizuka T, Etoh M, Gando Y, Hasegawa T, Inoue K, Ishihara K, Shirai J, Suzuki A, Koshiba M, Hatakeyama Y, Ichikawa Y, Koike M, Nishijima K, Ishino H, Nishimura R, Watanabe Y, Kielczewska D, Berns HG, Boyd SC, Stachyra AL, Wilkes RJ. Search for supernova relic neutrinos at Super-Kamiokande. Phys Rev Lett 2003; 90:061101. [PMID: 12633283 DOI: 10.1103/physrevlett.90.061101] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2002] [Revised: 10/21/2002] [Indexed: 05/24/2023]
Abstract
A search for the relic neutrinos from all past core-collapse supernovae was conducted using 1496 days of data from the Super-Kamiokande detector. This analysis looked for electron-type antineutrinos that had produced a positron with an energy greater than 18 MeV. In the absence of a signal, 90% C.L. upper limits on the total flux were set for several theoretical models; these limits ranged from 20 to 130 macro nu(e) cm(-2) s(-1). Additionally, an upper bound of 1.2 macro nu(e) cm(-2) s(-1) was set for the supernova relic neutrino flux in the energy region E(nu)>19.3 MeV.
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Affiliation(s)
- M Malek
- Department of Physics and Astronomy, State University of New York, Stony Brook, New York 11794-3800, USA
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31
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Kihara Y, Hori H, Murakami H, Hatakeyama Y, Yoshikawa I, Hamada T, Otsuki M. A case of POEMS syndrome associated with reactive amyloidosis and Waldenström's macroglobulinaemia. J Intern Med 2002; 252:255-8. [PMID: 12270006 DOI: 10.1046/j.1365-2796.2002.01030.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A72-year-old Japanese man presented with a 5-year history of fatigue, night sweats, oedema of dorsum of foot, muscle weakness, and paresthesia of the lower extremities. On examination, the patient fulfilled the diagnostic criteria for POEMS syndrome, but was unusual in that he also had underling Waldenström's macroglobulinaemia with IgM kappa. The M protein of POEMS syndrome is usually IgG and IgA with lambda light chains. To our knowledge, there are only three cases of POEMS syndrome with IgM kappa including our case. Autopsy findings revealed that small lymphocytes were more prominent than plasma cells in the bone marrow. These plasma cells were stained with IgM kappa. Amyloid deposits identified by Congo red stain were detected predominantly in the vascular walls of the gastrointestinal tract, pancreas and kidney. This amyloid protein was classified as amyloid associated protein. This is the first case of POEMS syndrome associated with reactive amyloidosis and Waldenström's macroglobulinaemiae.
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Affiliation(s)
- Y Kihara
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan
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32
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Abstract
The stabilizing function of the inferior glenohumeral ligament of the anterior band and posterior band has been investigated, but little is known about the function of the axillary pouch. The strain of the 3 portions of the inferior glenohumeral ligament in 17 fresh-frozen cadaveric shoulders was measured with use of linear transducers. The measurements were performed under the following conditions: 0 degrees, 30 degrees, 45 degrees, and 60 degrees of glenohumeral elevation in the coronal, scapular, and sagittal planes and internal to external rotations in 10 degrees increments. The anterior band and axillary pouch showed significant strain increases when the arm was elevated and externally rotated in the coronal and scapular planes but no increase in the sagittal plane. The posterior band showed no strain in the coronal and scapular planes, but a significant strain increase with the arm elevated and internally rotated in the sagittal plane. We conclude that the anterior band and axillary pouch, which showed the greatest strain in abduction and external rotation, are anterior stabilizers, whereas the posterior band, which showed the greatest strain in flexion and internal rotation, is a posterior stabilizer. We recommend that the 6 o'clock position be firmly repaired during the Bankart procedure.
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Affiliation(s)
- M Urayama
- Department of Orthopedic Surgery, Akita University School of Medicine, Japan
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33
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Abstract
In 14 cadaveric shoulders, a rotator cuff tear (2 cm wide and 1.5 cm long) was created and repaired under a 3-kg tensile force with the arm in adduction. Strain on the repaired tendon was measured at 0 degrees, 15 degrees, 30 degrees, and 45 degrees of elevation in the sagittal, scapular, and coronal planes and from 60 degrees of internal rotation to 60 degrees of external rotation. The strain in all of the planes decreased significantly with the arm elevated more than 30 degrees. With 30 degrees of elevation in the scapular and coronal planes, the strain increased in internal rotation and decreased in external rotation. In all of the positions measured, the strain in the sagittal plane was significantly greater than in the other planes. We concluded that more than 30 degrees of elevation in the coronal or scapular plane and rotation ranging from 0 degrees to 60 degrees of external rotation compose the safe range of motion after repair of the rotator cuff.
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Affiliation(s)
- Y Hatakeyama
- Department of Orthopedic Surgery, Akita University School of Medicine, Japan
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34
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Hatakeyama Y, Scarpace PJ. Transcriptional regulation of uncoupling protein-2 gene expression in L6 myotubes. Int J Obes (Lond) 2001; 25:1619-24. [PMID: 11753581 DOI: 10.1038/sj.ijo.0801812] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2000] [Revised: 04/23/2001] [Accepted: 05/08/2001] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To increase the understanding of the transcriptional regulation of UCP2 gene expression in skeletal muscle cells, we examined the effect of all-trans-retinoic acid (tRA), a ligand (after the conversion to 9-cis-RA) of the retinoid X receptor (RXR), and linolenic acid, a polyunsaturated fatty acid and peroxisome proliferator-activated receptors (PPARs) ligand, on the expression of UCP2 mRNA in cultured L6 myotubes. RESEARCH METHODS AND PROCEDURES UCP2 gene expression in L6 myotubes was confirmed by Northern blot analysis. The time- and concentration-dependency of tRA and linolenic acid on UCP2 gene expression was assessed by dot blot quantification. The mRNA levels of PPAR subtypes (alpha, gamma and delta) were determined by RT-PCR. RESULTS tRA induced UCP2 gene expression in a time- and concentration-dependent manner. Similar to tRA, UCP2 mRNA was markedly increased by 0.5 mM linolenic acid. In L6 myotubes, PPARdelta mRNA was abundant, whereas PPARalpha mRNA was lower and PPARgamma mRNA was minimal. CONCLUSIONS UCP2 mRNA expression in L6 myotubes is up-regulated by tRA and linolenic acid, possibly through a mechanism involving PPAR and RXRs.
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MESH Headings
- Animals
- Blotting, Northern
- Cells, Cultured
- DNA Primers
- Dose-Response Relationship, Drug
- Gene Expression Regulation
- Ion Channels
- Membrane Transport Proteins
- Mitochondrial Proteins
- Muscle, Skeletal/cytology
- Proteins/genetics
- RNA, Messenger/drug effects
- RNA, Messenger/genetics
- Rats
- Receptors, Cytoplasmic and Nuclear/administration & dosage
- Receptors, Retinoic Acid/drug effects
- Receptors, Retinoic Acid/genetics
- Retinoid X Receptors
- Reverse Transcriptase Polymerase Chain Reaction
- Transcription Factors/administration & dosage
- Transcription Factors/drug effects
- Transcription Factors/genetics
- Transcription Factors/pharmacology
- Transcription, Genetic
- Tretinoin/administration & dosage
- Tretinoin/pharmacology
- Uncoupling Protein 2
- alpha-Linolenic Acid/administration & dosage
- alpha-Linolenic Acid/pharmacology
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Affiliation(s)
- Y Hatakeyama
- Department of Metabolic Diseases, Medicinal Biology Research Laboratories, Fujisawa Pharmaceutical Co. Ltd, Osaka, Japan.
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35
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Hatakeyama Y, Itoi E, Urayama M, Pradhan RL, Sato K. Effect of superior capsule and coracohumeral ligament release on strain in the repaired rotator cuff tendon. A cadaveric study. Am J Sports Med 2001; 29:633-40. [PMID: 11573923 DOI: 10.1177/03635465010290051701] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Twelve cadaveric shoulders were used to determine the effects of release of the superior capsule and the coracohumeral ligament on the strain in the repaired rotator cuff tendon. A rotator cuff tear (2 cm wide and 1.5 cm long) was created and repaired under a 3-kg tensile force. The strain in the repaired tendon was measured with use of linear transducers with the arm in 50 different positions. Release of either the superior capsule or the coracohumeral ligament diminished the tension of the repaired rotator cuff by an average of 25% with the arm in adduction. Release of both of these structures further reduced the tension by an average of 44% in adduction and 43% to 60% with the arm in 15 degrees of elevation. The maximum reduction of tension in the repaired rotator cuff occurred when both the superior capsule and coracohumeral ligament were divided and when the arm was positioned in adduction and in 60 degrees of external rotation. Release of the coracohumeral ligament is equally as efficient as releasing the superior capsule in reducing the strain of the repaired rotator cuff. Releasing both structures seems to be desirable when releasing one structure or the other is not sufficient.
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Affiliation(s)
- Y Hatakeyama
- Department of Orthopedic Surgery, Akita University School of Medicine, Japan
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36
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Sekikawa K, Anzai K, Momma T, Yamaki T, Ando Y, Sassa M, Ito K, Endo Y, Sato N, Honda K, Hatakeyama Y, Koyama Y, Inoue N, Kimijima I, Takenoshita S. [Intermittent administration of 5-FU and isovorin to patients with advanced and recurrent colon cancer]. Gan To Kagaku Ryoho 2001; 28:1009-12. [PMID: 11478130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
We attempted a new regimen of intermittent administration of 5-FU and low-dose Isovorin (F.I) to four patients with advanced and recurrent colon cancer. A partial response (PR) was achieved in two of four patients who had evaluable lesions for this treatment. We observed few side effects among these patients. Only one patient among four showed grade 1 neuropathy after two administrations of this chemotherapy. However, after a two-week pause in administration, the neuropathy disappeared and we could continue the therapy. This patient with multiple liver metastases achieved a partial response. Other patients had no side effects such as bone marrow suppression or digestive symptoms. This intermittent F.I treatment might be an effective and promising therapy with few side effects even for patients with poorer conditions.
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Affiliation(s)
- K Sekikawa
- Dept. of Surgery II, Fukushima Medical University
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37
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Abstract
We studied the strain on the superior labrum of 10 fresh-frozen cadaveric shoulders with the arm in simulated positions of a pitching motion. We used linear transducers to measure the strain in both the anterior and posterior superior labrum with the arm in various planes and rotations simulating the motions of pitching: early cocking, late cocking, acceleration, deceleration, and follow-through. Predetermined loads, according to the percent of maximum voluntary contraction of the biceps muscle during each phase of pitching, were calculated and applied to the long head of the biceps tendon using a spring device. Only during the late cocking phase, when the arm was in maximal external rotation, was the increase in strain statistically significant for the anterior and posterior portions and the strain on the posterior portion significantly greater than that on the anterior portion of the labrum. The increased strain in the posterior portion may be due to the anatomic orientation of the long head of the biceps tendon at the superior labrum. The increased strain in the late cocking phase may contribute to the detachment of the labrum with the eccentric contraction of the biceps muscle that occurs with rapid extension of the elbow.
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Affiliation(s)
- R L Pradhan
- Department of Orthopedic Surgery, Akita University School of Medicine, Japan
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38
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Fukuda S, Fukuda Y, Ishitsuka M, Itow Y, Kajita T, Kameda J, Kaneyuki K, Kobayashi K, Koshio Y, Miura M, Moriyama S, Nakahata M, Nakayama S, Okada A, Sakurai N, Shiozawa M, Suzuki Y, Takeuchi H, Takeuchi Y, Toshito T, Totsuka Y, Yamada S, Desai S, Earl M, Kearns E, Messier MD, Scholberg K, Stone JL, Sulak LR, Walter CW, Goldhaber M, Barszczak T, Casper D, Gajewski W, Kropp WR, Mine S, Liu DW, Price LR, Smy MB, Sobel HW, Vagins MR, Ganezer KS, Keig WE, Ellsworth RW, Tasaka S, Kibayashi A, Learned JG, Matsuno S, Takemori D, Hayato Y, Ishii T, Kobayashi T, Nakamura K, Obayashi Y, Oyama Y, Sakai A, Sakuda M, Kohama M, Suzuki AT, Inagaki T, Nakaya T, Nishikawa K, Haines TJ, Blaufuss E, Dazeley S, Lee KB, Svoboda R, Goodman JA, Guillian G, Sullivan GW, Turcan D, Habig A, Hill J, Jung CK, Martens K, Malek M, Mauger C, McGrew C, Sharkey E, Viren B, Yanagisawa C, Mitsuda C, Miyano K, Saji C, Shibata T, Kajiyama Y, Nagashima Y, Nitta K, Takita M, Yoshida M, Kim HI, Kim SB, Yoo J, Okazawa H, Ishizuka T, Etoh M, Gando Y, Hasegawa T, Inoue K, Ishihara K, Maruyama T, Shirai J, Suzuki A, Koshiba M, Hatakeyama Y, Ichikawa Y, Koike M, Nishijima K, Fujiyasu H, Ishino H, Morii M, Watanabe Y, Golebiewska U, Kielczewska D, Boyd SC, Stachyra AL, Wilkes RJ, Young KK. Constraints on neutrino oscillations using 1258 days of Super-Kamiokande solar neutrino data. Phys Rev Lett 2001; 86:5656-5660. [PMID: 11415326 DOI: 10.1103/physrevlett.86.5656] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2001] [Indexed: 05/23/2023]
Abstract
We report the result of a search for neutrino oscillations using precise measurements of the recoil electron energy spectrum and zenith angle variations of the solar neutrino flux from 1258 days of neutrino-electron scattering data in Super-Kamiokande. The absence of significant zenith angle variation and spectrum distortion places strong constraints on neutrino mixing and mass difference in a flux-independent way. Using the Super-Kamiokande flux measurement in addition, two allowed regions at large mixing are found.
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Affiliation(s)
- S Fukuda
- Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
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39
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Fukuda S, Fukuda Y, Ishitsuka M, Itow Y, Kajita T, Kameda J, Kaneyuki K, Kobayashi K, Koshio Y, Miura M, Moriyama S, Nakahata M, Nakayama S, Okada A, Sakurai N, Shiozawa M, Suzuki Y, Takeuchi H, Takeuchi Y, Toshito T, Totsuka Y, Yamada S, Desai S, Earl M, Kearns E, Messier MD, Scholberg K, Stone JL, Sulak LR, Walter CW, Goldhaber M, Barszczak T, Casper D, Gajewski W, Kropp WR, Mine S, Liu DW, Price LR, Smy MB, Sobel HW, Vagins MR, Ganezer KS, Keig WE, Ellsworth RW, Tasaka S, Kibayashi A, Learned JG, Matsuno S, Takemori D, Hayato Y, Ishii T, Kobayashi T, Nakamura K, Obayashi Y, Oyama Y, Sakai A, Sakuda M, Kohama M, Suzuki AT, Inagaki T, Nakaya T, Nishikawa K, Haines TJ, Blaufuss E, Dazeley S, Lee KB, Svoboda R, Goodman JA, Guillian G, Sullivan GW, Turcan D, Habig A, Hill J, Jung CK, Martens K, Malek M, Mauger C, McGrew C, Sharkey E, Viren B, Yanagisawa C, Mitsuda C, Miyano K, Saji C, Shibata T, Kajiyama Y, Nagashima Y, Nitta K, Takita M, Yoshida M, Kim HI, Kim SB, Yoo J, Okazawa H, Ishizuka T, Etoh M, Gando Y, Hasegawa T, Inoue K, Ishihara K, Maruyama T, Shirai J, Suzuki A, Koshiba M, Hatakeyama Y, Ichikawa Y, Koike M, Nishijima K, Fujiyasu H, Ishino H, Morii M, Watanabe Y, Golebiewska U, Kielczewska D, Boyd SC, Stachyra AL, Wilkes RJ, Young KK. Solar 8B and hep neutrino measurements from 1258 days of Super-Kamiokande data. Phys Rev Lett 2001; 86:5651-5655. [PMID: 11415325 DOI: 10.1103/physrevlett.86.5651] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2001] [Indexed: 05/23/2023]
Abstract
Solar neutrino measurements from 1258 days of data from the Super-Kamiokande detector are presented. The measurements are based on recoil electrons in the energy range 5.0-20.0 MeV. The measured solar neutrino flux is 2.32+/-0.03(stat)+0.08-0.07(syst)x10(6) cm(-2) x s(-1), which is 45.1+/-0.5(stat)+1.6-1.4(syst)% of that predicted by the BP2000 SSM. The day vs night flux asymmetry (Phi(n)-Phi(d))/Phi(average) is 0.033+/-0.022(stat)+0.013-0.012(syst). The recoil electron energy spectrum is consistent with no spectral distortion. For the hep neutrino flux, we set a 90% C.L. upper limit of 40x10(3) cm(-2) x s(-1), which is 4.3 times the BP2000 SSM prediction.
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Affiliation(s)
- S Fukuda
- Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
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40
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Watanabe T, Sato H, Hatakeyama Y, Matsuzawa T, Kawai M, Aizawa C, Danbara H, Maehara N. Cloning of the gene coding for Staphylococcus hyicus exfoliative toxin B and its expression in Escherichia coli. J Bacteriol 2000; 182:4101-3. [PMID: 10869091 PMCID: PMC94598 DOI: 10.1128/jb.182.14.4101-4103.2000] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The Staphylococcus hyicus exfoliative toxin B (SHETB) gene was cloned into pUC118 and expressed in Escherichia coli. The nucleotide sequence of the SHETB gene consists of a coding region of 804 bp specifying a polypeptide of 268 amino acid residues, which included a putative 20-residue signal sequence.
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Affiliation(s)
- T Watanabe
- Department of Veterinary Microbiology, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Aomori, Japan
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41
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Pradhan RL, Itoi E, Kido T, Hatakeyama Y, Urayama M, Sato K. Effects of biceps loading and arm rotation on the superior labrum in the cadaveric shoulder. TOHOKU J EXP MED 2000; 190:261-9. [PMID: 10877508 DOI: 10.1620/tjem.190.261] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Effects of loading the long head of the biceps brachii (LHB) and arm rotation on the strain of the superior labrum (anterior and posterior) in 10 fresh frozen cadaveric shoulder joints were studied. Loads were applied to the rotator cuff muscles to stabilize the humeral head. The strain of the anterior and posterior portions of the labrum with the biceps loaded with 0.42 kg, 1.36 kg, and 2.31 kg were measured using linear transducers. The humerus was rotated externally (30, 45, 60, and 90 degrees) and internally (30, 45, and 60 degrees) with the arm elevated 60 degrees at glenohumeral joint (simulated 90 degrees elevation of arm to the trunk). The strain increased with an increase in the weight of the load to LHB and with increase in rotation angle both internally and externally. Since the strain in the posterior portion was larger than that of the anterior portion it seems likely that the labrum, especially the posterior portion, is subject to large strain during biceps loading and arm rotation.
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Affiliation(s)
- R L Pradhan
- Department of Orthopedic Surgery, Akita University School of Medicine, Japan
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42
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Nakano N, Hatakeyama Y, Fukatsu R, Hayashi S, Fujii M, Fujimori K, Takahata N. Eye-head coordination abnormalities and regional cerebral blood flow in Alzheimer's disease. Prog Neuropsychopharmacol Biol Psychiatry 1999; 23:1053-62. [PMID: 10621949 DOI: 10.1016/s0278-5846(99)00054-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
1. Three patients with Alzheimer's disease (AD) and three healthy controls (HC) were examined for eye-head coordination. Regional cerebral blood flow (rCBF) was measured in AD patients. 2. Eye-head coordination was analyzed using a Vision analyzer, and magnetic sensors. The authors measured the rCBF with 123I-IMP, and 99mTc-ECD SPECT. 3. AD reduced gaze accuracy and head movements, and prolonged the latency of saccade as compared to HC. AD patients had a tendency to focus on the target by using eye movements only. 4. AD reduced the rCBF in the inferior parietal part and the visual area, relative to the motor area. Damage of these areas may have caused the eye-head coordination disorders in the AD patients.
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Affiliation(s)
- N Nakano
- Department of Neuropsychiatry, School of Medicine, Sapporo Medical University, Japan
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Canning EU, Curry A, Cheney SA, Lafranchi-Tristem NJ, Kawakami Y, Hatakeyama Y, Iwano H, Ishihara R. Nosema tyriae n.sp. and Nosema sp., microsporidian parasites of Cinnabar moth Tyria jacobaeae. J Invertebr Pathol 1999; 74:29-38. [PMID: 10388544 DOI: 10.1006/jipa.1999.4861] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nosema tyriae n.sp. was found in 63% of a population of Cinnabar moth larvae (Tyria jacobaeae). The infection was found in the gut wall, silk glands, and fat body and was probably generalized but appeared to be of low pathogenicity. Merogony and sporogony were by binary fission of diplokaryotic stages. Fresh spores were elongate, slightly pointed at the anterior end, and measured 4.7 x 2.0 microm. Ultrastructural features of special interest were 20-nm tubules connecting the surface of sporonts with host cell cytoplasm and, in the spores, a deeply domed polar sac, polaroplast consisting of closely packed longitudinally arranged membranes and loosely packed horizontally arranged membranes, and 10.5-14 coils of the polar tube in a single rank. The 16S rRNA genes of N. tyriae and Nosema bombycis from silkworms, Bombyx mori, differed by only six nucleotides and N. tyriae spores gave a moderately positive reaction with a monoclonal antibody raised to N. bombycis. N. tyriae was infective to B. mori but was less virulent than N. bombycis. However, no amplification product was obtained by PCR using N. tyriae DNA and primers considered to be specific for N. bombycis. Also, the spores of the two species are of entirely different shapes. A second diplokaryotic microsporidium, Nosema sp., found as a light infection in only one of the larvae had much smaller developmental stages and spores measuring 3.8 x 2.0 microm (fixed). Ultrastructurally it was distinguished by an abundance of dense membranes in cytoplasmic vesicles in both meronts and sporonts. Spores with up to 15 coils of the polar tube in irregular clusters or with about 12 coils in a single rank were observed in the tissues fixed from the one larva infected with this parasite. As this larva had been kept with N. tyriae-infected larvae for a few days before examination, it is possible that the two types of spores resulted from a double infection.
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Affiliation(s)
- E U Canning
- Department of Biology, Imperial College of Science, Technology & Medicine, London, SW7 2AZ, United Kingdom.
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Sasaya M, Hatakeyama Y, Saitoh H, Takada M. Stereoselective permeation of new fluorinated quinolone derivatives across LLC-PK1 cell monolayers. Biol Pharm Bull 1999; 22:707-12. [PMID: 10443467 DOI: 10.1248/bpb.22.707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We examined the stereoselective membrane permeation of new fluorinated quinolone derivatives (NQs) across LLC-PK1 cell monolayers, using levofloxacin (LVFX) and its R-(+) isomer. LVFX permeation was 1.6-fold greater in the basal-to-apical direction than that in the apical-to-basal direction, suggesting that LVFX permeated LLC-PK1 cell monolayers in a secretory-oriented manner. In contrast to LVFX, the permeation of the R-(+) isomer was almost identical in both directions. LVFX permeation in the basal-to-apical direction was significantly reduced in the presence of guanidine, enoxacin, and L-arginine, whereas tetraethylammonium, D-arginine, D- and L-lysine had no effect on the basal-to-apical permeation of LVFX. Basal-to-apical permeation of the R-(+) isomer was not affected by these compounds. Cellular accumulation of LVFX was inversely increased when guanidine suppressed the appearance of LVFX in the apical medium in a concentration-dependent manner. These results imply that the inhibitory effect of guanidine on the basal-to-apical permeation of LVFX involves the permeation process across the apical membrane. Guanidine trans-stimulated the efflux of LVFX from LLC-PK1 cells but did not affect cimetidine efflux. These results suggest that some NQs, like LVFX and its R-(+) isomer, are stereoselectively secreted across LLC-PK1 cell monolayers and that an organic cation transport system, which favors guanidine as a typical substrate, may be involved in the secretory-oriented permeation of some NQs.
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Affiliation(s)
- M Sasaya
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Japan
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Abstract
Five new spirostanol saponins and a new furostanol saponin were isolated from the fresh bulbs of Lilium candidum. Their structures were elucidated on the basis of spectroscopic analysis, including two-dimensional NMR spectroscopic techniques and the result of acid hydrolysis. The isolated saponins contained a branched triglycoside moiety assigned as O-alpha-L-rhamnopyranosyl-(1-->2)-O-[beta-D-glucopyranosyl-(1-->6)]-beta - D-glucopyranose with the formation of an O-glycosidic linkage to C-3 of the aglycone as the common structural feature. The inhibitory activity of the saponins on Na+/K+ ATPase was evaluated.
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Affiliation(s)
- Y Mimaki
- School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan.
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Itoi E, Hatakeyama Y, Urayama M, Pradhan RL, Kido T, Sato K. Position of immobilization after dislocation of the shoulder. A cadaveric study. J Bone Joint Surg Am 1999; 81:385-90. [PMID: 10199277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND After reduction of a shoulder dislocation, the torn edges of a Bankart lesion need to be approximated for healing during immobilization. The position of immobilization has traditionally been adduction and internal rotation, but there is little direct evidence to support or discredit the use of this position. The purpose of the present study was to determine the relationship between the position of the arm and the coaptation of the edges of a simulated Bankart lesion created in cadaveric shoulders. METHODS Ten thawed fresh-frozen cadaveric shoulders were used for experimentation. All of the muscles were removed to expose the joint capsule. A simulated Bankart lesion was created by sectioning the anteroinferior aspect of the capsule from the labrum. With linear transducers attached to the anteroinferior and inferior portions of the Bankart lesion, the opening and closing of the lesion were recorded with the arm in 0, 30, 45, and 60 degrees of elevation in the coronal and sagittal planes as well as with the arm in rotation from full internal to full external rotation in 10-degree increments. RESULTS With the arm in adduction, the edges of the simulated Bankart lesion were coapted in the range from full internal rotation to 30 degrees of external rotation. With the arm in 30 degrees of flexion or abduction, the edges of the lesion were coapted in neutral and internal rotation but were separated in external rotation. At 45 and 60 degrees of flexion or abduction, the edges were separated regardless of rotation. CONCLUSIONS The present study demonstrated that, in the cadaveric shoulder, there was a so-called coaptation zone in which the edges of a simulated Bankart lesion were kept approximated without the surrounding muscles.
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Affiliation(s)
- E Itoi
- Department of Orthopedic Surgery, Akita University School of Medicine, Japan.
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Mizoguchi I, Scott PG, Dodd CM, Rahemtulla F, Sasano Y, Kuwabara M, Satoh S, Saitoh S, Hatakeyama Y, Kagayama M, Mitani H. An immunohistochemical study of the localization of biglycan, decorin and large chondroitin-sulphate proteoglycan in adult rat temporomandibular joint disc. Arch Oral Biol 1998; 43:889-98. [PMID: 9821512 DOI: 10.1016/s0003-9969(98)00038-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To analyse regional variations in extracellular matrix components of adult rat temporomandibular joint discs, immunohistochemical techniques were used to examine the localization of two small dermatan-sulphate proteoglycans, biglycan and decorin, and a large chondroitin-sulphate proteoglycan. Staining for biglycan was intense in the posterior band, although it had a rather weak and even distribution throughout the disc. In contrast, staining for decorin was faint in the intermediate zone and the central part of the posterior band, moderate in the anterior and posterior attachments and most intense in the junction between the anterior band and attachment. The upper surface of the disc stained more intensely than the lower. Similarly, there was intense staining for large chondroitin-sulphate proteoglycan in the peripheral band, but both the anterior and the temporal parts of the posterior attachments were faintly stained. These results demonstrate marked regional differences in the expression of biglycan, decorin and large chondroitin-sulphate proteoglycan in the temporomandibular joint discs of adult rats. These variations probably reflect the different biomechanical environments caused by the complicated articulatory functions of the temporomandibular joint.
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Affiliation(s)
- I Mizoguchi
- Department of Orthodontics, School of Dentistry, Health Sciences University of Hokkaido, Japan.
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Abstract
Eight spirostanol saponins, including four new compounds, and two known furostanol saponins were isolated from the fresh bulbs of Lilium candidum. The structures of new compounds were determined to be (25R,26R)-26-methoxyspirost-5-ene-3 beta,17 alpha-diol 3-O-¿O-alpha-L-rhamnopyranosyl-(1-->2)-O-[beta-D-glucopyranosyl-(1-->4)] -beta-D-glucopyranoside¿, (25R,26R)-26-methoxyspirost-5-ene-3 beta,17 alpha-diol 3-O-¿O-alpha-L-rhamnopyranosyl-(1-->2)-O-[6-O-acetyl-beta-D-glucopyranos yl- (1-->4)]-beta-D-glucopyranoside¿, (25R,26R)-26-methoxyspirost-5-ene-3 beta,17 alpha-diol 3-O-¿O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranoside¿ and (25S)-spirost-5-ene-3 beta,27-diol 3-O-¿O-beta-D-glucopyranosyl-(1-->3)-O-alpha-L-rhamnopyranosyl-(1-->2)-O - [beta-D-glucopyranosyl-(1-->4)]-beta-D-glucopyranoside¿, respectively, on the basis of spectroscopic analysis, including two-dimensional NMR techniques, and the result of hydrolysis. The inhibitory activity of the isolated saponins on Na+/K+ ATPase was evaluated.
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Affiliation(s)
- Y Mimaki
- School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan
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Hatakeyama Y, Ishii K, Murai C, Sugamura K, Mitomo N, Saitoh T, Rikimaru Y, Okazaki T, Sasaki T. [Diagnosis for human parvovirus B19-polyarthritis: usefulness of empty particle B19.ELISA and B19-DNA.PCR]. Ryumachi 1998; 38:689-95. [PMID: 9852745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
OBJECTIVE To evaluate the usefulness of new ELISA for human parvovirus B19 (B19) antibodies and PCR for the diagnosis of acute onset of B19 polyarthritis. METHODS We evaluated the reproducibility and sensitivity on the detection of anti-B19 antibody by ELISA using recombinant VP-1 and VP-2 (empty particle), and then studied for the prevalence of IgM and IgG B19 antibody in 125 samples for anti-B19 tests. The random study on anti-B19 antibody assay as well as PCR for B19-DNA was also performed in 130 cases with acute onset of arthritis excluding those with known origins, 224 with rheumatoid arthritis and 149 with other categories. RESULTS The results by using B19-empty particle ELISA were reproducible and showed the assay was a sensitive way for clinical use. IgM anti-B19 antibodies were positive not only in all samples from erythema infectiosum, but also often in those from hemolytic anemia, pure red cell aplasia, fetal hydrops, hepatic injury, fever of unknown origin. Among 130 with acute onset of arthritis, 21 showed positive tests for IgM anti-B19 antibody and/or B19 DNA. On the other hand, 4 among 224 patients with rheumatoid arthritis were positive for IgM anti-B19 antibody, but all of 149 in control group were negative for IgM anti-B19 antibodies and for B19 DNA. CONCLUSION AND DISCUSSION Anti-B19 ELISA using B19-empty particle which has been introduced as a routine test system, is a useful tool for the diagnosis of acute onset of B19 arthritis. An additional examination using PCR for B19 DNA may contribute for understanding persistent B19 polyarthritis or reactivation of B19 infection.
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Affiliation(s)
- Y Hatakeyama
- Laboratory Medicine, Tohoku University Hospital, Sendai-city
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Tsuchiya A, Kanno M, Nomizu T, Hatakeyama Y, Kimijima I, Abe R. Clinical characteristics of breast cancer patients with family history. Fukushima J Med Sci 1998; 44:35-41. [PMID: 9775529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
This study was conducted to acquire information as to the clinicopathological characteristics of breast cancer patients with family history. Of 583 patients with breast cancer, 60 (10.3%) had family history in at least one relative within the second-degree. The affected family member was most frequently a sister (43%), followed by the mother (23%) and an aunt (20%). Comparison of the data for the patients between with and without family history revealed no significant differences for any of mean age, menopausal status, histological type, histological staging, and estrogen receptor status. Although the sample size was small, neither the survival rate nor the bilaterality of disease was influenced by the family history of breast cancer.
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Affiliation(s)
- A Tsuchiya
- Department of Surgery II, Fukushima Medical University School of Medicine, Japan
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