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Nishioka N, Imai H, Endo M, Notsu A, Doshita K, Igawa S, Yokouchi H, Ninomiya T, Tokito T, Soda S, Fujiwara T, Asao T, Nakamichi S, Kawamura T, Inomata M, Nakashima K, Ito K, Goto Y, Umeda Y, Hirai S, Ushio R, Yokoo K, Takeda T, Fukui T, Ishihara M, Osaki T, Kubo S, Fujiwara T, Yamamoto C, Tsuda T, Tamura N, Hosokawa S, Chihara Y, Ikeda S, Furuya N, Nakahara Y, Miura S, Okamoto H. Real-World Data on Subsequent Therapy for First-Line Osimertinib-Induced Pneumonitis: Safety of EGFR-TKI Rechallenge (Osi-risk Study TORG-TG2101). Target Oncol 2024:10.1007/s11523-024-01048-x. [PMID: 38613731 DOI: 10.1007/s11523-024-01048-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2024] [Indexed: 04/15/2024]
Abstract
BACKGROUND Although osimertinib is a promising therapeutic agent for advanced epidermal growth factor receptor (EGFR) mutation-positive lung cancer, the incidence of pneumonitis is particularly high among Japanese patients receiving the drug. Furthermore, the safety and efficacy of subsequent anticancer treatments, including EGFR-tyrosine kinase inhibitor (TKI) rechallenge, which are to be administered after pneumonitis recovery, remain unclear. OBJECTIVE This study investigated the safety of EGFR-TKI rechallenge in patients who experienced first-line osimertinib-induced pneumonitis, with a primary focus on recurrent pneumonitis. PATIENTS AND METHODS We retrospectively reviewed the data of patients with EGFR mutation-positive lung cancer who developed initial pneumonitis following first-line osimertinib treatment across 34 institutions in Japan between August 2018 and September 2020. RESULTS Among the 124 patients included, 68 (54.8%) patients underwent EGFR-TKI rechallenge. The recurrence rate of pneumonitis following EGFR-TKI rechallenge was 27% (95% confidence interval [CI] 17-39) at 12 months. The cumulative incidence of recurrent pneumonitis was significantly higher in the osimertinib group than in the first- and second-generation EGFR-TKI (conventional EGFR-TKI) groups (hazard ratio [HR] 3.1; 95% CI 1.3-7.5; p = 0.013). Multivariate analysis revealed a significant association between EGFR-TKI type (osimertinib or conventional EGFR-TKI) and pneumonitis recurrence, regardless of severity or status of initial pneumonitis (HR 3.29; 95% CI 1.12-9.68; p = 0.03). CONCLUSIONS Osimertinib rechallenge after initial pneumonitis was associated with significantly higher recurrence rates than conventional EGFR-TKI rechallenge.
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Affiliation(s)
- Naoya Nishioka
- Division of Thoracic Oncology, Shizuoka Cancer Center, Shizuoka, Japan
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Department of Respiratory Medicine, Fukuchiyama City Hospital, Kyoto, Japan
| | - Hisao Imai
- Department of Respiratory Medicine, Comprehensive Cancer Center, International Medical Center, Saitama Medical University, Yamane 1397-1, Hidaka City, Saitama, Japan.
| | - Masahiro Endo
- Division of Thoracic Oncology, Shizuoka Cancer Center, Shizuoka, Japan
- Division of Diagnostic Radiology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Akifumi Notsu
- Division of Clinical Research Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - Kosei Doshita
- Division of Thoracic Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Satoshi Igawa
- Department of Respiratory Medicine, Kitasato University School of Medicine, Kanagawa, Japan
| | - Hiroshi Yokouchi
- Department of Respiratory Medicine, NHO Hokkaido Cancer Center, Hokkaido, Japan
| | - Takashi Ninomiya
- Department of Thoracic Oncology and Medicine, NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - Takaaki Tokito
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Sayo Soda
- Department of Pulmonary and Clinical Immunology, Dokkyo Medical University School of Medicine, Tohigi, Japan
| | - Takasato Fujiwara
- Department of Respiratory Internal Medicine, Yokosuka Kyosai Hospital, Kanagawa, Japan
| | - Tetsuhiko Asao
- Department of Respiratory Medicine, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Shinji Nakamichi
- Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Takahisa Kawamura
- Department of Thoracic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Minehiko Inomata
- 1st Department of Internal Medicine, Toyama University Hospital, Toyama, Japan
| | - Kazuhisa Nakashima
- Division of Medical Oncology and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Kentaro Ito
- Respiratory Center, Matsusaka Municipal Hospital, Mie, Japan
| | - Yasuhiro Goto
- Department of Respiratory Medicine, Fujita Health University School of Medicine, Aichi, Japan
| | - Yukihiro Umeda
- Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Soichi Hirai
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ryota Ushio
- Department of Thoracic Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Keiki Yokoo
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Hokkaido, Japan
| | - Takayuki Takeda
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Tomoya Fukui
- Department of Respiratory Medicine, Shonan Kamakura General Hospital, Kanagawa, Japan
| | - Masashi Ishihara
- Division of Medical Oncology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Takashi Osaki
- Department of Respiratory Medicine, Shibukawa Medical Center, Gunma, Japan
| | - Sousuke Kubo
- Department of Pulmonology, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Takumi Fujiwara
- Department of Genomic Medicine, Mie University Hospital, Mie, Japan
| | - Chie Yamamoto
- Department of Respiratory Medicine, Fukuchiyama City Hospital, Kyoto, Japan
| | - Takeshi Tsuda
- Division of Respiratory Medicine, Toyama Prefectural Central Hospital, Toyama, Japan
| | - Nobumasa Tamura
- Division of Respiratory Diseases, Department of Internal Medicine, Atsugi City Hospital, Kanagawa, Japan
| | - Shinobu Hosokawa
- Department of Respiratory Medicine, Japanese Red Cross Okayama Hospital, Okayama, Japan
| | - Yusuke Chihara
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Kyoto, Japan
| | - Satoshi Ikeda
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Kanagawa, Japan
| | - Naoki Furuya
- Division of Respiratory Medicine, Department of Internal Medicine, St Marianna University School of Medicine, Kanagawa, Japan
| | - Yoshiro Nakahara
- Department of Respiratory Medicine, Kitasato University School of Medicine, Kanagawa, Japan
| | - Satoru Miura
- Department of Internal Medicine, Niigata Cancer Center Hospital, Niigata, Japan
| | - Hiroaki Okamoto
- Department of Respiratory Medicine, Yokohama Municipal Citizen's Hospital, Yokohama, Kanagawa, Japan
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Tsuji K, Mizugaki H, Yokoo K, Kobayashi M, Kawashima Y, Kimura N, Yokouchi H, Kikuchi H, Sumi T, Kawai Y, Kobashi K, Morita R, Ito K, Kitamura Y, Minemura H, Nakamura K, Aso M, Honjo O, Tanaka H, Takashina T, Tsurumi K, Sugisaka J, Tsukita Y, Konno S, Oizumi S. Durvalumab after chemoradiotherapy in non-small cell lung cancer with EGFR mutation: A real-world study (HOT2101). Cancer Sci 2024; 115:1273-1282. [PMID: 38287788 PMCID: PMC11006989 DOI: 10.1111/cas.16094] [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: 11/02/2023] [Revised: 01/01/2024] [Accepted: 01/14/2024] [Indexed: 01/31/2024] Open
Abstract
Durvalumab has been administered to patients with unresectable stage III non-small cell lung cancer (NSCLC). However, it remains unclear whether durvalumab benefits these patients with epidermal growth factor receptor (EGFR) mutation. We conducted a retrospective, multicenter study of patients with EGFR mutation who received chemoradiotherapy (CRT) between June 2018 and March 2021. We assessed patient characteristics, efficacy of durvalumab, and durvalumab safety before and after targeted therapy. We collected data on a total of 673 patients, of whom 401 (59.6%) underwent EGFR mutation testing. Fifty-one patients were EGFR positive and 311 were EGFR negative. In the EGFR-positive group, there were higher proportions of females, never-smokers, and patients with adenocarcinoma histology. Of the 51 patients in the positive group and 311 in the negative group who received CRT, 45 (88.2%) and 247 (79.4%) received durvalumab, with median progression-free survival of 23.0 and 24.2 months in the positive and negative groups, respectively (hazard ratio 1.03; 95% confidence interval: 0.64-1.67). The main adverse event was pneumonitis (positive group: 62.2%; 4.4% grade 3; negative group: 62.3%; 6.9% grade 3). No treatment-related deaths were observed. Of the 45 patients in the positive group who received durvalumab, 14 (31.1%) received targeted therapy after durvalumab at the data cutoff. One patient discontinued targeted therapy after developing pneumonitis. In patients with unresectable stage III NSCLC with EGFR mutation, durvalumab after CRT is potentially safe and effective. This may be a suitable treatment sequence for these patients.
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Affiliation(s)
- Kosuke Tsuji
- Department of Respiratory Medicine, Faculty of MedicineHokkaido UniversitySapporoJapan
| | - Hidenori Mizugaki
- Department of Respiratory Medicine, Faculty of MedicineHokkaido UniversitySapporoJapan
- Department of Advanced Medical DevelopmentThe Cancer Institute Hospital of Japanese Foundation for Cancer ResearchTokyoJapan
- Department of Respiratory MedicineNHO Hokkaido Cancer CenterSapporoJapan
| | - Keiki Yokoo
- Department of Respiratory MedicineTeine Keijinkai HospitalSapporoJapan
| | - Maki Kobayashi
- Department of Respiratory MedicineMiyagi Cancer CenterNatoriJapan
| | - Yosuke Kawashima
- Department of Pulmonary MedicineSendai Kousei HospitalSendaiJapan
| | - Nozomu Kimura
- Department of Respiratory MedicineTohoku University Graduate School of MedicineSendaiJapan
| | - Hiroshi Yokouchi
- Department of Respiratory MedicineNHO Hokkaido Cancer CenterSapporoJapan
| | - Hajime Kikuchi
- Department of Respiratory MedicineObihiro‐Kousei General HospitalObihiroJapan
| | - Toshiyuki Sumi
- Department of Respiratory MedicineHakodate Goryoukaku HospitalHakodateJapan
| | - Yasutaka Kawai
- Department of Respiratory MedicineOji General HospitalTomakomaiJapan
| | - Kenta Kobashi
- Department of Pulmonary MedicineSteel Memorial Muroran HospitalMuroranJapan
| | - Ryo Morita
- Department of Respiratory MedicineAkita Kousei Medical CenterAkitaJapan
| | - Kenichiro Ito
- Department of Respiratory MedicineKKR Sapporo Medical CenterSapporoJapan
| | - Yasuo Kitamura
- Department of Respiratory MedicineKushiro City General HospitalKushiroJapan
| | - Hiroyuki Minemura
- Department of Pulmonary MedicineFukushima Medical University School of MedicineFukushimaJapan
| | - Keiichi Nakamura
- Department of Respiratory MedicineNational Hospital Organization Asahikawa Medical CenterAsahikawaJapan
| | - Mari Aso
- Department of Respiratory MedicineYamagata Prefectural Central HospitalYamagataJapan
| | - Osamu Honjo
- Department of Respiratory MedicineSapporo Minami‐Sanjo HospitalSapporoJapan
| | - Hisashi Tanaka
- Department of Respiratory Medicine, Graduate School of MedicineHirosaki UniversityHirosakiJapan
| | - Taichi Takashina
- Department of Respiratory MedicineIwamizawa Municipal General HospitalIwamizawaJapan
| | - Kyoji Tsurumi
- Department of Respiratory MedicineMiyagi Cancer CenterNatoriJapan
| | - Jun Sugisaka
- Department of Pulmonary MedicineSendai Kousei HospitalSendaiJapan
| | - Yoko Tsukita
- Department of Respiratory MedicineTohoku University Graduate School of MedicineSendaiJapan
| | - Satoshi Konno
- Department of Respiratory Medicine, Faculty of MedicineHokkaido UniversitySapporoJapan
| | - Satoshi Oizumi
- Department of Respiratory MedicineNHO Hokkaido Cancer CenterSapporoJapan
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Kudo S, Yokoo K, Tanaka N, Yamada G, Kitamura Y. Extensive-Disease Small-Cell Lung Cancer With Severe Immune-Related Adverse Events Due to Atezolizumab Maintaining a Complete Response for Two Years: A Case Report. Cureus 2024; 16:e56302. [PMID: 38495967 PMCID: PMC10944563 DOI: 10.7759/cureus.56302] [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] [Accepted: 03/08/2024] [Indexed: 03/19/2024] Open
Abstract
A 75-year-old male with diabetes mellitus was referred to our hospital with an abnormal shadow on chest radiography, based on which he was diagnosed with extensive-disease small-cell lung cancer (ED-SCLC; cT2bN2M1a). The first-line therapy comprised atezolizumab, carboplatin, and etoposide. After four cycles, the patient achieved complete response (CR), and maintenance therapy was initiated with atezolizumab. However, even though CR was maintained, maintenance therapy was discontinued after 16 cycles due to persistent grade 2 anorexia and fatigue. Simultaneously, the HbA1c decreased to 5.5%, and antidiabetic therapy was discontinued. Six months after the last dose of atezolizumab, the patient visited the emergency room because of anorexia, dry mouth, and fatigue. Laboratory findings were as follows: blood glucose was 668 mg/dL, glycated hemoglobin (HbA1c) was 8.8%, urine ketone was 2+, sodium (Na) was 127 mmol/L, potassium (K) was 6.5 mmol/L, creatinine (Cre) was 1.43 mg/dL, and arterial pH was 7.29. Based on these findings, his presentation was consistent with fulminant type 1 diabetes mellitus (T1DM) complicated by diabetic ketoacidosis (DKA). Regular continuous insulin and saline administration was initiated in the intensive care unit, and acidosis and electrolyte abnormalities were corrected. His C-peptide was <0.03 ng/mL. His insulin secretory capacity was considered to be depleted, and he required continuous subcutaneous insulin injections. Glutamic acid decarboxylase and insulin autoantibodies were absent. The complete response persisted without further therapy until two years since the event.
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Affiliation(s)
- Sayaka Kudo
- Department of Respiratory Medicine, Kushiro City General Hospital, Kushiro, JPN
| | - Keiki Yokoo
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Sapporo, JPN
| | - Nao Tanaka
- Department of Respiratory Medicine, Kushiro City General Hospital, Kushiro, JPN
| | - Gen Yamada
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Sapporo, JPN
| | - Yasuo Kitamura
- Department of Respiratory Medicine, Kushiro City General Hospital, Kushiro, JPN
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Nakano T, Wada S, Nishisako R, Sakurai Y, Yokoo K. Massive hemoptysis from a bronchial-pulmonary arterial fistula. Pediatr Int 2024; 66:e15741. [PMID: 38409871 DOI: 10.1111/ped.15741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 09/10/2023] [Accepted: 10/12/2023] [Indexed: 02/28/2024]
Affiliation(s)
- Takaaki Nakano
- Department of Pediatrics, Teine Keijinkai Hospital, Sapporo, Hokkaido, Japan
| | - Soichiro Wada
- Department of Pediatrics, Teine Keijinkai Hospital, Sapporo, Hokkaido, Japan
| | - Ryo Nishisako
- Department of Pediatrics, Teine Keijinkai Hospital, Sapporo, Hokkaido, Japan
| | - Yasuo Sakurai
- Department of Diagnostic Radiology, Teine Keijinkai Hospital, Sapporo, Hokkaido, Japan
| | - Keiki Yokoo
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Sapporo, Hokkaido, Japan
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5
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Yokoo K, Kitamura Y, Suzuki K, Morikawa K, Sawai T, Honda H, Kudo S, Yamada G. Relationship between immune-related adverse events and treatment effectiveness in extensive disease small cell lung cancer. Thorac Cancer 2023; 14:2251-2258. [PMID: 37365145 PMCID: PMC10423651 DOI: 10.1111/1759-7714.15010] [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: 04/30/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND This study aimed to assess the relationship between immune response adverse events (irAEs) and treatment efficacy in patients with extensive disease small cell lung cancer (ED-SCLC). METHODS We retrospectively evaluated the clinical effects in 40 ED-SCLC patients who had received immune-checkpoint inhibitors (ICIs), platinum agents, and etoposide between September 2019 and September 2021. We identified and compared patients belonging to two groups: irAE and non-irAE. RESULTS Fifteen patients experienced irAEs, and 25 did not. The median progression-free survival in patients with irAE was longer than that in patients without irAE (12.6 months [95% CI: 6.3-19.3 months] vs. 7.2 months [95% CI: 5.8-7.9 months], p = 0.0108). However, the median overall survival (OS) was similar between irAE and non-irAE groups (27.6 months [95% CI: 15.4-NA] vs. 24.9 months [95% CI: 13.7-NA], p = 0.268). Seven (46.7%) in the irAE group and 20 (80%) in the non-irAE group received sequential therapy. The median OS was prolonged in patients who received first- and second-line therapy than in those who received first-line therapy alone (27.6 months [95% CI: 19.2-NA] vs. 6.6 months [95% CI: 0.3-NA], p = 0.053). Grade ≧ 3 irAEs occurred in five (12.5%) patients. Among them, grade 5 irAEs were observed in two patients, including exacerbation of polymyositis and pulmonary arterial embolism. CONCLUSION In this study, the development of irAEs did not affect OS in patients with ED-SCLC who received platinum-based agents, etoposide, or ICI therapy. We determined that managing irAEs and administering first- and second-line therapies could contribute to prolonged OS.
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Affiliation(s)
- Keiki Yokoo
- Department of Respiratory MedicineTeine Keijinkai HospitalSapporoJapan
| | - Yauo Kitamura
- Department of Respiratory MedicineKushiro City General HospitalKushiroJapan
| | - Keito Suzuki
- Department of Respiratory MedicineHakodate Goryoukaku HospitalHakodateJapan
| | - Kohei Morikawa
- Department of Pulmonary MedicineSteel Memorial Muroran HospitalMuroranJapan
| | - Takeo Sawai
- Department of Respiratory MedicineKushiro City General HospitalKushiroJapan
| | - Hiroyuki Honda
- Nagasaki University Hospital Infectious Diseases Experts Training CenterNagasakiJapan
| | - Sayaka Kudo
- Department of Respiratory MedicineKushiro City General HospitalKushiroJapan
| | - Gen Yamada
- Department of Respiratory MedicineTeine Keijinkai HospitalSapporoJapan
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Morinaga D, Asahina H, Ito S, Honjo O, Tanaka H, Honda R, Yokouchi H, Nakamura K, Takamura K, Hommura F, Kawai Y, Ito K, Sukoh N, Yokoo K, Morita R, Harada T, Takashina T, Goda T, Dosaka-Akita H, Isobe H. Real-world data on the efficacy and safety of immune-checkpoint inhibitors in elderly patients with non-small cell lung cancer. Cancer Med 2023. [PMID: 36999734 DOI: 10.1002/cam4.5889] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 03/03/2023] [Accepted: 03/19/2023] [Indexed: 04/01/2023] Open
Abstract
PURPOSE Immune-checkpoint inhibitors (ICIs) are effective against advanced non-small cell lung cancer (NSCLC). However, whether the efficacy and safety of ICI treatment in elderly patients are similar to those in younger patients is unclear. This study was designed to address this question. METHODS We enrolled patients who received ICI monotherapy in Japan between December 2015 and December 2017; those ≥75 years of age comprised the elderly group. We compared the efficacy and safety of ICI monotherapy in elderly patients with those in younger patients and explored prognostic factors in elderly patients. RESULTS We enrolled 676 patients; 137 (20.3%) were assigned to the elderly group. The median age of the elderly and younger groups was 78 (range, 75-85) and 66 (range, 34-74) years. The median progression-free survival (4.8 months vs. 3.3 months, p = 0.1589) and median overall survival (12.3 months vs. 13.0 months, p = 0.5587) were similar between the elderly and younger groups. Multivariate analysis revealed that a significantly better OS in the elderly group was associated with better responses to first- or second-line ICI treatment (p = 0.011) and more immune-related adverse events (irAEs) (p = 0.02). IrAEs that led to ICI discontinuation occurred in 34 of 137 patients (24.8%) in the elderly group, and their survival was significantly higher than that in those who did not have irAEs. CONCLUSION ICI is also effective in elderly NSCLC patients, and treatment discontinuation due to irAEs may be a good prognostic marker.
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Affiliation(s)
- Daisuke Morinaga
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hajime Asahina
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shotaro Ito
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Osamu Honjo
- Department of Respiratory Medicine, Sapporo Minami-Sanjo Hospital, Sapporo, Japan
| | - Hisashi Tanaka
- Department of Respiratory Medicine, Hirosaki University, Graduate School of Medicine, Hirosaki, Japan
| | - Ryoichi Honda
- Department of Respiratory Medicine, Asahi General Hospital, Asahi, Japan
| | - Hiroshi Yokouchi
- Department of Respiratory Medicine, National Hospital Organization Hokkaido Cancer Center, Sapporo, Japan
| | - Keiichi Nakamura
- Department of Respiratory Medicine, National Hospital Organization Asahikawa Medical Center, Asahikawa, Japan
| | - Kei Takamura
- Department of Respiratory Medicine, Obihiro-Kosei General Hospital, Obihiro, Japan
| | - Fumihiro Hommura
- Department of Respiratory Medicine, Sapporo City General Hospital, Sapporo, Japan
| | - Yasutaka Kawai
- Department of Respiratory Medicine, Oji General Hospital, Tomakomai, Japan
| | - Kenichiro Ito
- Department of Respiratory Medicine, KKR Sapporo Medical Center, Sapporo, Japan
| | - Noriaki Sukoh
- Department of Respiratory Medicine, National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Keiki Yokoo
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Sapporo, Japan
| | - Ryo Morita
- Department of Respiratory Medicine, Akita Kousei Medical Center, Akita, Japan
| | - Toshiyuki Harada
- Department of Respiratory Medicine, JCHO Hokkaido Hospital, Sapporo, Japan
| | - Taichi Takashina
- Department of Respiratory Medicine, Iwamizawa Municipal General Hospital, Iwamizawa, Japan
| | - Tomohiro Goda
- Department of Medical Oncology, Hokkaido University Graduate School of Medicine, Japan
| | - Hirotoshi Dosaka-Akita
- Department of Medical Oncology, Hokkaido University Graduate School of Medicine, Japan
- Research Division of Cancer Immunotherapy, Hokkaido University Hospital, Japan
| | - Hiroshi Isobe
- Department of Respiratory Medicine, KKR Sapporo Medical Center, Sapporo, Japan
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7
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Yamaguchi B, Kodama Y, Watanabe K, Suzuki J, Sakurai Y, Yokoo K. Pulmonary varix clearly demonstrated by 3D-CT before pulmonary angiography. Radiol Case Rep 2022; 17:4183-4187. [PMID: 36105839 PMCID: PMC9464761 DOI: 10.1016/j.radcr.2022.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 08/08/2022] [Indexed: 11/29/2022] Open
Abstract
Pulmonary varix is a rare and usually asymptomatic localized dilation of a pulmonary vein. This disease should be distinguished from other pulmonary and mediastinal diseases, particularly pulmonary arteriovenous malformations. Herein, we encountered a case of pulmonary varix clearly demonstrated by 3-dimensional reconstructed computed tomography (3D-CT) which proved useful in its diagnosis. The 3D-CT enabled easy understanding of the vascular connections and confirmation of the absence of an inflow pulmonary artery. We also performed angiography which showed findings consistent with those obtained by the 3D-CT, thus confirming the diagnosis of pulmonary varix. After the diagnosis, the patient was followed up for several years without any treatment and she remained asymptomatic. On follow-up CT, the lesion remained unchanged.
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Affiliation(s)
- Beni Yamaguchi
- Department of Radiology, Teine Keijinkai Hospital, 1-12-1-40 Maeda Teine-ku, Sapporo 006-8555, Hokkaido, Japan
- Corresponding author.
| | - Yoshihisa Kodama
- Department of Radiology, Teine Keijinkai Hospital, 1-12-1-40 Maeda Teine-ku, Sapporo 006-8555, Hokkaido, Japan
| | - Kiichi Watanabe
- Department of Radiology, Teine Keijinkai Hospital, 1-12-1-40 Maeda Teine-ku, Sapporo 006-8555, Hokkaido, Japan
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Kita 14 Nishi 5, Kita-ku, Sapporo 060-8648, Hokkaido, Japan
| | - Jun Suzuki
- Department of Radiology, Teine Keijinkai Hospital, 1-12-1-40 Maeda Teine-ku, Sapporo 006-8555, Hokkaido, Japan
| | - Yasuo Sakurai
- Department of Radiology, Teine Keijinkai Hospital, 1-12-1-40 Maeda Teine-ku, Sapporo 006-8555, Hokkaido, Japan
| | - Keiki Yokoo
- Department of Respiratory medicine, Teine Keijinkai Hospital, 1-12-1-40 Maeda Teine-ku, Sapporo 006-8555, Hokkaido, Japan
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Yokouchi H, Mizugaki H, Ikezawa Y, Morita R, Tateishi K, Yokoo K, Sumi T, Kikuchi H, Nakamura A, M. kobayashi, Aso M, Tsukita Y, Yoshiike F, Furuta M, Tanaka H, Sekikawa M, Hachiya T, Nakamura K, Kitamura Y. 335P Real-world data of first-line treatment with pembrolizumab for non-small cell lung cancer with high PD-L1 expression (HOT/NJLCG2001). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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9
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Ikezawa Y, Mizugaki H, Morita R, Tateishi K, Yokoo K, Sumi T, Kikuchi H, Kitamura Y, Nakamura A, Kobayashi M, Aso M, Kimura N, Yoshiike F, Furuta M, Tanaka H, Sekikawa M, Hachiya T, Nakamura K, Shimokawa M, Oizumi S. Current status of first-line treatment with pembrolizumab for non-small cell lung cancer with high PD-L1 expression. Cancer Sci 2022; 113:2109-2117. [PMID: 35377496 PMCID: PMC9207363 DOI: 10.1111/cas.15361] [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: 12/01/2021] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 11/29/2022] Open
Abstract
It is not clear whether pembrolizumab monotherapy (MONO) or pembrolizumab plus platinum‐based chemotherapy (COMB) should be selected for patients with advanced non–small‐cell lung cancer (NSCLC) exhibiting high PD‐L1 expression (tumor proportion score ≥ 50%). We performed a retrospective, multicenter study of 300 patients with NSCLC exhibiting high PD‐L1 expression who received MONO or COMB as first‐line treatment between December 2018 and January 2020. We reviewed the medical records of all consecutive patients with no driver mutations, and assessed the patient characteristics, therapeutic regimens, treatment periods, and adverse events. In total, 166 (55%; median age: 74 years) and 134 (45%; median age: 68 years) patients received MONO and COMB, respectively. Patients were younger and had better performance status (0–1) in the COMB group (p < 0.01). With a median follow‐up time of 10.6 (range: 0.1–20.6) months, the median progression‐free survival was 7.1 months with MONO and 13.1 months with COMB. The objective response rate was 42.2% with MONO and 67.9% with COMB. With respect to treatment discontinuation, 36 out of 166 (21.7%) and 28 out of 134 (20.1%) patients discontinued MONO and COMB, respectively. In conclusion, COMB may be a promising option for first‐line treatment for NSCLC with high PD‐L1 expression and good performance status.
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Affiliation(s)
- Yasuyuki Ikezawa
- Department of Respiratory Medicine, Oji General Hospital, Tomakomai, Japan
| | - Hidenori Mizugaki
- Division of Cancer Immunotherapy Development, Advanced Medical Development Center, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan.,Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Ryo Morita
- Department of Respiratory Medicine, Akita Kousei Medical Center, Akita, Japan
| | - Kazunari Tateishi
- First Department of Internal Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Keiki Yokoo
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Sapporo, Japan
| | - Toshiyuki Sumi
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hakodate, Japan
| | - Hajime Kikuchi
- Department of Respiratory Medicine, Obihiro-Kousei General Hospital, Obihiro, Japan
| | - Yasuo Kitamura
- Department of Respiratory Medicine, Kushiro City General Hospital, Kushiro, Japan
| | - Atsushi Nakamura
- Department of Respiratory Medicine, Sendai-Kousei General Hospital, Sendai, Japan
| | - Maki Kobayashi
- Department of Respiratory Medicine, Miyagi Cancer Center, Natori, Japan
| | - Mari Aso
- Department of Respiratory Medicine, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Nozomu Kimura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Fumiaki Yoshiike
- Department of Respiratory Medicine, Nagano Municipal Hospital, Nagano, Japan
| | - Megumi Furuta
- Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Hisashi Tanaka
- Department of Respiratory Medicine, Hirosaki University, Graduate School of Medicine, Hirosaki, Japan
| | - Motoki Sekikawa
- Department of Respiratory Medicine, Steel Memorial Muroran Hospital, Muroran, Japan
| | - Tsutomu Hachiya
- Department of Respiratory Medicine, Japanese Red Cross Society Suwa Hospital, Suwa, Japan
| | - Keiichi Nakamura
- Department of Respiratory Medicine, National Hospital Organization Asahikawa Medical Center, Asahikawa, Japan
| | - Mototsugu Shimokawa
- Department of Biostatistics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Satoshi Oizumi
- Department of Respiratory Medicine, National Hospital Organization Hokkaido Cancer Center, Sapporo, Japan
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10
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Kobayashi M, Mizugaki H, Ikezawa Y, Morita R, Tateishi K, Yokoo K, Sumi T, Kikuchi H, Nagano Y, Nakamura A, Aso M, Kimura N, Yoshiike F, Furuta M, Tanaka H, Sekikawa M, Hachiya T, Fujita Y, Oizumi S. P16.05 Real World Data of First-Line Treatment With Pembrolizumab for Highly PD-L1-Expressing NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Nakamura A, Mizugaki H, Ikezawa Y, Morita R, Tateishi K, Yokoo K, Sumi T, Kikuchi H, Kitamura Y, Morita M, Aso M, Tsukita Y, Yoshiike F, Furuta M, Tanaka H, Sekikawa M, Hachiya T, Nakamura K, Yokouchi H. 1306P Real-world data of first-line treatment with pembrolizumab for highly PD-L1 expressing NSCLC (HOT/NJLCG2001). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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12
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Kodama Y, Sakurai Y, Yamasaki K, Yokoo K. High false-negative rate of the anterior spinal artery by intercostobronchial trunk arteriography alone compared to CT during arteriography. Br J Radiol 2021; 94:20210402. [PMID: 34111972 DOI: 10.1259/bjr.20210402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES This study aimed to assess the frequencies of the anterior spinal arteries identified by CT during arteriography (CTA) and arteriography alone. METHODS This retrospective study included 137 vessels in 83 patients who performed both bronchial arteriography and CTA and categorized them into three groups based on the catheter tip locations: intercostobronchial trunk (ICBT), bronchial artery (BA), and intercostal artery (ICA). The frequencies of anterior spinal artery identified by CTA and arteriography alone were compared for each group. RESULTS ICBT, BA, and ICA groups were evaluated by CTA in 46, 79, and 12 vessels, respectively. By CTA evaluation, anterior spinal artery was identified in seven vessels (15.2%) in ICBT group, 0 in BA group and two (16.7%) in ICA group. The frequencies of anterior spinal artery were significantly higher (p < 0.05) in ICBT and ICA groups than in BA group. By arteriography evaluation alone, a faint anterior spinal artery was identified in two vessels (4.3%) in ICBT group, 0 in BA group, and 1 (8.3%) in ICA group. CONCLUSIONS Anterior spinal artery branched only from the ICBT or ICA and not from the BA in both arteriography and CTA assessments. There was high false-negative rate (71%) of the anterior spinal artery by ICBT arteriography alone assessment compared to CTA assessment. This result explains one of the reasons that spinal ischemia occurs in arteriography-negative spinal artery cases. ADVANCES IN KNOWLEDGE False-negative rate of anterior spinal artery was 71% (5/7) by intercostobronchial trunk arteriography alone assessment.
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Affiliation(s)
- Yoshihisa Kodama
- Department of Radiology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Yasuo Sakurai
- Department of Radiology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Koji Yamasaki
- Department of Radiology, Teine Keijinkai Hospital, Sapporo, Japan.,Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - Keiki Yokoo
- Department of Respiratory medicine, Teine Keijinkai Hospital, Sapporo, Japan
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13
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Ito S, Asahina H, Honjo O, Tanaka H, Honda R, Oizumi S, Nakamura K, Takamura K, Hommura F, Kawai Y, Ito K, Sukoh N, Yokoo K, Morita R, Harada T, Takashina T, Goda T, Dosaka-Akita H, Isobe H. Prognostic factors in patients with advanced non-small cell lung cancer after long-term Anti-PD-1 therapy (HOT1902). Lung Cancer 2021; 156:12-19. [PMID: 33872943 DOI: 10.1016/j.lungcan.2021.04.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/19/2021] [Accepted: 04/10/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Limited information is available on the appropriate treatment duration of immune checkpoint inhibitors (ICIs). We aimed to identify candidates who would benefit from ICI discontinuation after one year of treatment for metastatic non-small cell lung cancer (NSCLC). MATERIALS AND METHODS This retrospective multi-institutional observational study examined medical records of all consecutive patients with advanced or recurrent NSCLC, who started ICI monotherapy at 15 institutions in Japan between December 2015 and December 2017. Patients who received initial ICI therapy for >1 year without progressive disease were defined as the long-term treatment (LT) group; others were defined as the non-long-term treatment (NLT) group. Primary outcomes included the prognostic factors in the LT group, whereas secondary outcomes included efficacy of ICI rechallenge, safety, and survival outcomes in the overall population. RESULTS In total, 676 patients were enrolled, and 114 (16.9 %) were assigned to the LT group. The median time interval from the start of initial ICI administration to data cutoff was 34.3 months (range, 24.1-47.8); thus, all surviving patients were followed-up for at least 2 years from the start of initial ICI. Median progression-free survival (PFS) was longer in the LT than in the NLT group (33.6 months vs. 2.7 months; p < 0.001). On multivariate analysis, significantly better PFS was associated with smoking (hazard ratio [HR]=0.36, p = 0.04), and complete response (CR; HR=uncomputable, p < 0.001) in the LT group. Thirty-seven patients (5.5 %) received ICI rechallenge, including 10 in the LT group. Among patients receiving rechallenge treatment, the median PFS was 2.2 months, with no difference between the LT and NLT groups. CONCLUSIONS In the LT group, smoking and achieving CR were significantly associated with better PFS. Since rechallenge treatment was not effective, careful consideration is required for discontinuing ICI. However, these prognostic factors are helpful in considering candidates for ICI discontinuation. TRIAL REGISTRATION UMIN ID, UMIN000041403.
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Affiliation(s)
- Shotaro Ito
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hajime Asahina
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - Osamu Honjo
- Department of Respiratory Medicine, Sapporo Minami-Sanjo Hospital, Sapporo, Japan
| | - Hisashi Tanaka
- Department of Respiratory Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ryoichi Honda
- Department of Respiratory Medicine, Asahi General Hospital, Asahi, Japan
| | - Satoshi Oizumi
- Department of Respiratory Medicine, National Hospital Organization Hokkaido Cancer Center, Sapporo, Japan
| | - Keiichi Nakamura
- Department of Respiratory Medicine, National Hospital Organization Asahikawa Medical Center, Asahikawa, Japan
| | - Kei Takamura
- Department of Respiratory Medicine, Obihiro-Kosei General Hospital, Obihiro, Japan
| | - Fumihiro Hommura
- Department of Respiratory Medicine, Sapporo City General Hospital, Sapporo, Japan
| | - Yasutaka Kawai
- Department of Respiratory Medicine, Oji General Hospital, Tomakomai, Japan
| | - Kenichiro Ito
- Department of Respiratory Medicine, KKR Sapporo Medical Center, Sapporo, Japan
| | - Noriaki Sukoh
- Department of Respiratory Medicine, National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Keiki Yokoo
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Sapporo, Japan
| | - Ryo Morita
- Department of Respiratory Medicine, Akita Kousei Medical Center, Akita, Japan
| | - Toshiyuki Harada
- Department of Respiratory Medicine, JCHO Hokkaido Hospital, Sapporo, Japan
| | - Taichi Takashina
- Department of Respiratory Medicine, Iwamizawa Municipal General Hospital, Iwamizawa, Japan
| | - Tomohiro Goda
- Department of Medical Oncology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hirotoshi Dosaka-Akita
- Department of Medical Oncology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroshi Isobe
- Department of Respiratory Medicine, KKR Sapporo Medical Center, Sapporo, Japan
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14
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Yokoo K, Sugaya F, Matsuzaka S, Ueda K, Kamimura R, Yokoyama T, Ambo Y, Yamada G, Narita Y. The first case of COVID-19 occurring as community-acquired pneumonia in Hokkaido, Japan and our preventive measures against nosocomial infection. Respir Med Case Rep 2020; 30:101078. [PMID: 32391243 PMCID: PMC7206437 DOI: 10.1016/j.rmcr.2020.101078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 04/30/2020] [Accepted: 05/05/2020] [Indexed: 12/28/2022] Open
Abstract
We report a case of a 59-year-old man with coronavirus disease 2019 (COVID-19). He had visited a hospital for fever and cough and been treated with antibiotics for pneumonia in the right upper lobe. However, he gradually progressed to dyspnea and consulted our hospital. His chest radiographs showed bilateral pneumonia shadows and his CT showed ground glass opacities and consolidation. Although we treated him with broad-spectrum antibiotics, the pneumonia shadow rapidly progressed and mechanical ventilation was administered. We collected sputum from the bronchus using bronchoscopy to detect microorganisms, and RT-PCR tests confirmed COVID-19 pneumonia. He was transferred to a designated hospital. In order to prevent the occurrence of nosocomial infections, close contacts within the hospital and medical staff were suspended from their work for two weeks. No secondary infection with COVID-19 appeared. This was the first case of COVID-19 occurring as community-acquired pneumonia in Hokkaido, Japan.
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Affiliation(s)
- Keiki Yokoo
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Japan
| | - Fumiko Sugaya
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Japan
| | - Suguru Matsuzaka
- Department of General Internal Medicine and Infectious Disease Medicine, Teine Keijinkai Hospital, Japan
| | - Kentaro Ueda
- Department of Anesthesiology Medicine, Teine Keijinkai Hospital, Japan
| | - Ryosuke Kamimura
- Department of Anesthesiology Medicine, Teine Keijinkai Hospital, Japan
| | - Takeshi Yokoyama
- Department of Anesthesiology Medicine, Teine Keijinkai Hospital, Japan
| | - Yoshiyasu Ambo
- Department of Surgery, Medicine, Teine Keijinkai Hospital, Japan
| | - Gen Yamada
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Japan
| | - Yoshiaki Narita
- Department of Surgery, Medicine, Teine Keijinkai Hospital, Japan
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15
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Yokoo K, Yamada G, Chiba H, Ishikawa A, Morisaki H, Saijo H, Kudoh S, Kitamura Y, Hirokawa N, Miyajima M, Watanabe A, Takahashi H. A new ENG mutation in a Japanese family with hereditary hemorrhagic telangiectasia and pulmonary arteriovenous malformations. Respir Med Case Rep 2018; 25:73-77. [PMID: 30073140 PMCID: PMC6068337 DOI: 10.1016/j.rmcr.2018.07.001] [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: 05/10/2018] [Revised: 06/30/2018] [Accepted: 07/01/2018] [Indexed: 12/04/2022] Open
Abstract
We present a case series of four siblings with hereditary hemorrhagic telangiectasia (HHT) and pulmonary arteriovenous malformations (PAVM). The patients' mother has HHT. Case 1: A 22-year-old man developed dyspnea and epistaxis. CT revealed a large PAVM, treated by segmentectomy. Case 2: A 27-year-old woman developed epistaxis and dyspnea. CT revealed three PAVMs, treated by partial resection. Case 3: A 20-year-old woman developed dyspnea. CT revealed multiple PAVMs, treated with endovascular occlusion of the largest one. Case 4: A 12-year-old woman developed epistaxis. CT revealed multiple PAVMs, observed without treatment. Genetic testing identified a new mutation, ENG c.1517T>C (p.Leu506Pro), in all patients and their mother. We suspect that HHT in these patients may be associated with this ENG mutation.
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Affiliation(s)
- Keiki Yokoo
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Japan
| | - Gen Yamada
- Department of Respiratory Medicine, Teine Keijinkai Hospital, Japan
| | - Hirofumi Chiba
- Department of Respiratory Medicine and Allergology, Sapporo Medical University, Japan
| | - Aki Ishikawa
- Department of Medical Genetics, Sapporo Medical University, Japan
| | - Hiroko Morisaki
- Department of Medical Genetics, Sakakibara Heart Institute, Japan (Formerly, Department of Bioscience and Genetics, National Cerebral and Cardiovascular Center Research Institute), Japan
| | - Hiroshi Saijo
- Department of Respiratory Medicine and Allergology, Sapporo Medical University, Japan
| | - Sayaka Kudoh
- Department of Respiratory Medicine, Kushiro City General Hospital, Japan
| | - Yasuo Kitamura
- Department of Respiratory Medicine, Kushiro City General Hospital, Japan
| | - Naoki Hirokawa
- Department of Radiology, Sapporo Medical University, Japan
| | - Masahiro Miyajima
- Department of Respiratory Surgery, Sapporo Medical University, Japan
| | - Atsushi Watanabe
- Department of Respiratory Surgery, Sapporo Medical University, Japan
| | - Hiroki Takahashi
- Department of Respiratory Medicine and Allergology, Sapporo Medical University, Japan
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16
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Ohno K, Manjanath A, Kawazoe Y, Hatakeyama R, Misaizu F, Kwon E, Fukumura H, Ogasawara H, Yamada Y, Zhang C, Sumi N, Kamigaki T, Kawachi K, Yokoo K, Ono S, Kasama Y. Extensive first-principles molecular dynamics study on Li encapsulation into C 60 and its experimental confirmation. Nanoscale 2018; 10:1825-1836. [PMID: 29308793 DOI: 10.1039/c7nr07237f] [Citation(s) in RCA: 2] [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] [Indexed: 06/07/2023]
Abstract
The aim of increasing the production ratio of endohedral C60 by impinging foreign atoms against C60 is a crucial matter of the science and technology employed towards industrialization of these functional building block materials. Among these endohedral fullerenes, Li+@C60 exhibits a wide variety of physical and chemical phenomena and has the potential to be applicable in areas spanning the medical field to photovoltaics. However, currently, Li+@C60 can be experimentally produced with only ∼1% ratio using the plasma shower method with a 30 eV kinetic energy provided to the impinging Li+ ion. From extensive first-principles molecular dynamics simulations, it is found that the maximum production ratio of Li+@C60 per hit is increased to about 5.1% (5.3%) when a Li+ ion impinges vertically on a six-membered ring of C60 with 30 eV (40 eV) kinetic energy, although many C60 molecules are damaged during this collision. On the contrary, when it impinges vertically on a six-membered ring with 10 eV kinetic energy, the production ratio remains at 1.3%, but the C60 molecules are not damaged at all. On the other hand, when the C60 is randomly oriented, the production ratio reduces to about 3.7 ± 0.5%, 3.3 ± 0.5%, and 0.2 ± 0.03% for 30 eV, 40 eV, and 10 eV kinetic energy, respectively. Based on these observations we demonstrate the possibility of increasing the production ratio by fixing six-membered rings atop C60 using the Cu(111) substrate or UV light irradiation. In order to assess the ideal experimental production ratio, the 7Li solid NMR spectroscopy measurement is also performed for the multilayer randomly oriented C60 sample irradiated by Li+ using the plasma shower method combined with inductively coupled plasma atomic emission spectroscopy (ICP-AES). Time-of-flight mass spectroscopy measurements are also performed to cross check whether Li+@C60 molecules are produced in the sample. The resulting experimental estimate, 4% for 30 eV incident kinetic energy, fully agrees with our simulation results mentioned above, suggesting the consistency and accuracy of our simulations and experiments.
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Affiliation(s)
- K Ohno
- Department of Physics, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
| | - A Manjanath
- Department of Physics, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
| | - Y Kawazoe
- New Industry Creation Hatchery Center, Tohoku University, 6-6-4 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8579, Japan and Department of Physics and Nanotechnology, SRM University, Kattankulathur 603203, Tamil Nadu, India
| | - R Hatakeyama
- Department of Electronic Engineering, Tohoku University, 6-6-5 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - F Misaizu
- New Industry Creation Hatchery Center, Tohoku University, 6-6-4 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8579, Japan and Department of Chemistry, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - E Kwon
- New Industry Creation Hatchery Center, Tohoku University, 6-6-4 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8579, Japan and Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - H Fukumura
- Department of Chemistry, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - H Ogasawara
- Graduate School of Pharmaceutical Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Y Yamada
- Division of Applied Physics, University of Tsukuba, 1-1-1 Ten'nodai, Tsukuba, Ibaraki 305-8573, Japan
| | - C Zhang
- Division of Applied Physics, University of Tsukuba, 1-1-1 Ten'nodai, Tsukuba, Ibaraki 305-8573, Japan
| | - N Sumi
- Division of Applied Physics, University of Tsukuba, 1-1-1 Ten'nodai, Tsukuba, Ibaraki 305-8573, Japan
| | - T Kamigaki
- Idea International Corporation, 1-15-35 Sagigamori, Aoba-ku, Sendai 981-0922, Japan
| | - K Kawachi
- Idea International Corporation, 1-15-35 Sagigamori, Aoba-ku, Sendai 981-0922, Japan
| | - K Yokoo
- Idea International Corporation, 1-15-35 Sagigamori, Aoba-ku, Sendai 981-0922, Japan
| | - S Ono
- Idea International Corporation, 1-15-35 Sagigamori, Aoba-ku, Sendai 981-0922, Japan
| | - Y Kasama
- Idea International Corporation, 1-15-35 Sagigamori, Aoba-ku, Sendai 981-0922, Japan
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17
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Abstract
Chest wall tumors are relatively rare, and hematogenous metastasis to the chest wall is very rare. We herein describe a rare case of occult thyroid carcinoma as metastasis to the chest wall in an 80-year-old woman. The patient received detailed examinations of the chest wall tumor, and the results suggested that she had occult thyroid carcinoma. Surgery was then performed to remove all of her thyroid. As a result, she was diagnosed with follicular carcinoma of the thyroid. We report an extremely rare case of occult thyroid carcinoma diagnosed as hematogenous metastasis to the chest wall.
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Affiliation(s)
- Hiroshi Saijo
- Department of Respiratory Medicine, Kushiro City General Hospital, Japan
| | - Yasuo Kitamura
- Department of Respiratory Medicine, Kushiro City General Hospital, Japan
| | - Haruka Takenaka
- Department of Respiratory Medicine, Kushiro City General Hospital, Japan
| | - Sayaka Kudo
- Department of Respiratory Medicine, Kushiro City General Hospital, Japan
| | - Keiki Yokoo
- Department of Respiratory Medicine, Kushiro City General Hospital, Japan
| | - Yoshihiko Hirohashi
- Department of Pathology, Sapporo Medical University School of Medicine, Japan
| | - Hiroki Takahashi
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Japan
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18
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Kawamura Y, Yokoo K, Tojo M, Hishiike M. Distribution of Pythium porphyrae, the Causal Agent of Red Rot Disease of Porphyrae spp., in the Ariake Sea, Japan. Plant Dis 2005; 89:1041-1047. [PMID: 30791270 DOI: 10.1094/pd-89-1041] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Distribution of Pythium porphyrae, the causal agent of red rot disease of Porphyra spp., in seafloor sediment was investigated in the Ariake Sea, Japan. A total of 170 samples of each 200 ml of sediment was collected from the seafloor at a total of 13 sites across the sea from 1998 to 2002. Each sample was filtered through two layers of nylon mesh with pore sizes of 100 and 15 μm. The residue on 15 μm mesh was assayed by a soil plating technique using a semiselective medium for P. porphyrae and by polymerase chain reaction (PCR) using species-specific primers. P. porphyrae were detected in 6 out of 13 sites and 2 out of 10 sites surveyed by soil plating and PCR, respectively. The representative isolate of P. porphyrae from the sediment was identical to the Porphyra thallus isolate from the same sea based on pathogenicity to the thallus, morphology, and rDNA internal transcribed spacer sequences. Recovery of P. porphyrae propagules in the sediment was up to 60 CFU per 100 ml of the fresh sample and was consistently higher in May than in the other months. The results suggest that P. porphyrae is distributed in the seafloor sediment in a wide area of the Ariake Sea.
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Affiliation(s)
- Y Kawamura
- Saga Prefectural Ariake Fisheries Research and Development Center, Saga 849-0313, Japan
| | - K Yokoo
- Saga Prefectural Ariake Fisheries Research and Development Center, Saga 849-0313, Japan
| | - M Tojo
- Graduate School of Agriculture and Biological Sciences, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - M Hishiike
- Graduate School of Agriculture and Biological Sciences, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
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19
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Yokoo K, Noma H, Inoue T, Hashimoto S, Shimono M. Cell proliferation and tumour suppressor gene expression in iodine unstained area surrounding oral squamous cell carcinoma. Int J Oral Maxillofac Surg 2004; 33:75-83. [PMID: 14690663 DOI: 10.1054/ijom.2002.0457] [Citation(s) in RCA: 21] [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] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The purpose of this study was to investigate the relationship between epithelial dysplasia unstained with iodine and the expression of proliferating cell nuclear antigen (PCNA) and/or tumour suppressor gene (p53) and the existence of glycogen. Thirty cases of squamous cell carcinomas arising from the buccal mucosa and floor of the mouth were examined. Iodine unstained areas were diagnosed histopathologically as mild, moderate or severe epithelial dysplasia. Normal oral mucosa stained with iodine was used as a control group. There was no histochemical difference in the distribution or ratio of PAS-positive cells between the control and the mild epithelial dysplasia groups, however PAS stained areas of the moderate and the severe dysplasia groups were significantly decreased. Ultrastructurally, glycogen granules were not recognized in the moderate or severe dysplastic epithelia. Immunoreactive ratios of PCNA and p53 in the moderate and severe dysplastic groups were significantly higher than those of the control and the mild dysplasia groups. The positive ratio of PCNA was higher than that of p53, although the immunostaining patterns of PCNA- and p53-positive cells were quite similar. These results suggest that mild dysplastic epithelia that are stained with iodine may be in the category of normal epithelia, whereas both moderate and severe dysplasia that are un-stained with iodine may be suspected of malignant lesions.
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Affiliation(s)
- K Yokoo
- The 1st Department of Oral and Maxillofacial Surgery, Tokyo Dental College, Chiba, Japan
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20
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Yokoo K, Aoyama H, Tamada Y, Hashimoto T, Kuroyanagi Y, Kagawa S, Kubo K, Matsui H. 034
Application of Allogeneic Cultured Dermal Substitute to Skin Defects After Excision of Skin Cancer. Wound Repair Regen 2004. [DOI: 10.1111/j.1067-1927.2004.abstractaw.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Abstract
The authors report a case of a free fibular graft that was successful as a result of venous return delivered through the bone marrow. A 26-year-old man underwent reconstruction of the left tibia and a soft-tissue defect of the lower leg. A free vascularized fibular bone and skin flap was elevated. The fibular vessels were anastomosed to the dorsalis pedis vessels. The elevated fibular bone was fixed to the tibia. The next day, reanastomosis was necessary because of venous thrombosis. However, the fibular vein rethrombosed, but blood flow was ascertained by Doppler flowmetry, with darker blood flow being recognized from the edge of the flap. Four days after surgery, the skin color gradually improved, and the flap had almost completely taken. On retrospective evaluation, the authors concluded that this flap succeeded because venous return was routed through the bone marrow in the free fibular graft.
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Affiliation(s)
- Y Kamei
- Department of Plastic and Reconstructive Surgery, Aichi Medical University, Nagoya, Japan
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22
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Abstract
Endoscopic surgery is minimally invasive and can be used to achieve superior cosmetic results. Conventional correction of pectus excavatum results in a long scar. Correction by use of endoscopic surgery involves a smaller skin incision. In this study, endoscopic correction of pectus excavatum was performed in 20 cases. A small transverse skin incision was made above the xyphoid process. A wide area beneath the pectoralis major muscle was dissected under endoscopic visualization. Subperichondrial resection was performed under direct visualization when possible. Subperichondrial resection of the third or fourth rib was performed under endoscopic visualization. Ravitch's chondrotomy of the second or third rib was performed under endoscopic visualization. Endoscopy was also useful for sternal elevation, with minimal risk of pleural perforation. Kirschner wire was inserted percutaneously under the sternum to prevent postoperative paradoxical respiration. In all cases, the postoperative course was uneventful. The advantages of endoscopic pectus excavatum correction are a short scar, control of bleeding, safe dissection of the pleura from the sternum without the risk of pleural perforation, and ease of sternal elevation without injury to the intramammary vessels. However, the endoscopic operation is long and is not useful in adults because subperichondrial resection in adults is difficult to perform.
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Affiliation(s)
- Y Kamei
- Department of Plastic and Reconstructive Surgery, Nagoya University School of Medicine, Japan.
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23
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Wakui S, Muto T, Yokoo K, Yokoo R, Takahashi H, Masaoka T, Hano H, Furusato M. Prognostic status of p53 gene mutation in canine mammary carcinoma. Anticancer Res 2001; 21:611-6. [PMID: 11299814] [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: 02/19/2023]
Abstract
BACKGROUND The p53 gene mutations have been associated with the development of human breast and canine mammary neoplasms; breast carcinoma patients with alterations of p53 gene are considered to have a poor prognosis. Mammary carcinoma represents the most common malignant tumor in female dogs. However, the prognostic significance of p53 gene mutation in the dog has been unclear. STUDY DESIGN The alteration in exons 5-8 of p53 gene in 69 canine mammary carcinomas were investigated by PCR-SSCP with direct sequence analysis and statistically analyzed to compare with other clinicopathological parameters including age, neuter, tumor size, stage, histology, p53 expression, recurrence and death from carcinoma. RESULTS 12 out of 69 (17%) carcinomas showed p53 gene mutations. After a follow-up period of 30 months, multivariate regression analysis revealed that p53 gene mutation was only an independent risk factor for increased risk of the recurrence and death from mammary carcinoma. CONCLUSION The p53 gene alterations might contribute to the prognostic status in canine mammary carcinomas, in a way comparable to that of human tumors.
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Affiliation(s)
- S Wakui
- Comparative Toxicology Laboratories, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara, Kanagawa 229-8501, Japan.
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24
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Numazaki K, Ueno H, Yokoo K, Muramatsu Y, Chiba S, Morita C. Detection of serum antibodies to Bartonella henselae and Coxiella burnetii from Japanese children and pregnant women. Microbes Infect 2000; 2:1431-4. [PMID: 11099929 DOI: 10.1016/s1286-4579(00)01297-1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The participation of Bartonella henselae and Coxiella burnetii in the pathogenesis of fever of unknown origin (FUO) and lymphadenopathy has not been completely clarified. Prevalence of these two agents in Japanese children is also unknown. Serum IgG and IgM antibodies to B. henselae and to C. burnetii were examined by the indirect fluorescence antibody assay. Enzyme immunoassay kits were used to detect serum IgG and IgA antibodies against Chlamydia trachomatis. Out of 200 healthy normal pregnant women, two (1.0%) had serum IgG antibodies to B. henselae, four (2.0%) to C. burnetii and 49 (24.5%) to C. trachomatis. Out of 29 patients with FUO, one (3.4%) had serum IgG antibodies to B. henselae, four (13.8%) to C. burnetii and none to C. trachomatis. Out of 31 patients with cervical lymphadenopathy, three (9.6%) had serum IgG antibodies to B. henselae, two (6.5%) to C. burnetii and none to C. trachomatis. Out of 22 patients with generalized lymphadenopathy, one (4.5%) had serum IgG antibodies to B. henselae, three (13.6%) to C. burnetii and none to C. trachomatis. Prevalences of serum antibodies to C. burnetii in the patients with FUO and generalized lymphadenopathy and to B. henselae in the patients with cervical lymphadenopathy were significantly higher than those of normal pregnant women (Welch's t-test; P<0.01). These two agents may have some roles in the pathogenesis of FUO and lymphadenopathy in Japanese children.
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Affiliation(s)
- K Numazaki
- Department of Pediatrics, Sapporo Medical University School of Medicine, S.1 W.16 Chuo-ku, Hokkaido, 060-8543, Sapporo, Japan.
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25
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Abstract
A 9-year-old male Shetland Sheepdog had a small mass in the left testis. Grossly, the round to oval cyst was present at the upper pole of the testicular parenchyma near the head of the epididymis. Histologically, the cyst was lined by a single layer of nonciliated and ciliated epithelial cells. Immunohistochemically, the epithelial cells of the cyst showed expression of the low- and high-molecular-weight cytokeratins, vimentin, and desmin similar to that of normal efferent ductules in the dog. The testicular cystic dysplasia was thought to originate from the efferent ductules.
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Affiliation(s)
- S Wakui
- Comparative Toxicology Laboratories, Azabu University School of Veterinary Medicine, Kanagawa, Japan
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26
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Wakui S, Furusato M, Yokoo K, Yokoyama H, Ushigome S, Aizawa S. Nuclear bodies appearance rate in canine testicular Sertoli cell tumor. J Submicrosc Cytol Pathol 1995; 27:275-9. [PMID: 7757954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A number of nuclear bodies (NB) were observed in the canine testicular Sertoli cell tumors (SCT). We statistically examined nineteen cases of canine SCT concerning the NB appearance rate (NBAR), and also examined the NBAR in four cases of the normal testicular Sertoli cells. The mean value of the total number of the NBAR of SCT was significantly higher than that of normal Sertoli cells. The SCT were classified into three groups according to the Nielsen and Lein's histological classification (1974): intratubular SCT without invasion, intratubular SCT with invasion, and diffuse type SCT. The mean value of NBAR of the diffuse type SCT was significantly higher than that of the intratubular SCT with and without invasion, and there was no significant difference between the mean values of NBAR of the latter two groups. The distribution of NBAR of the diffuse type SCT was significantly different from that of the intratubular SCT with and without invasion. On the other hand, the individual differences of NBAR of the diffuse type SCT and the intratubular SCT with invasion was significantly higher than that of the intratubular SCT without invasion. The present study suggests that the increase of NBAR in canine SCT might be correlated with the tumor invasive progression.
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27
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Kamei Y, Aoyama H, Yokoo K, Fujii K, Kondo C, Sato T, Onishi S. Composite gastric seromuscular and omental pedicle flap for urethral and scrotal reconstruction after Fournier's gangrene. Ann Plast Surg 1994; 33:565-8. [PMID: 7857055 DOI: 10.1097/00000637-199411000-00018] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [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: 01/27/2023]
Abstract
A new composite gastric seromuscular and omental pedicle flap is described that can provide immediate airtight or watertight closure in the repair of complex defects involving the urethra. This flap was used to repair defects of the urethra, scrotum, and abdominal wall in a patient with Fournier's gangrene. The seromuscular patch was sutured to the urethral defect, and the omentum was applied over the defects of the scrotum and abdominal wall. This new procedure made it possible to close the skin primarily without leakage or infection. The patient had an uncomplicated recovery. Postoperative urethrography demonstrated no leakage or stenosis.
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Affiliation(s)
- Y Kamei
- Department of Plastic and Reconstructive Surgery, Aichi Medical University, Japan
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28
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Wakui S, Furusato M, Masaoka T, Yokoo K, Yokoyama Y, Kristof M, Ushigome S, Aizawa S. Confronting cisternae in canine testicular seminoma: special reference to appearance rate. J Submicrosc Cytol Pathol 1994; 26:229-34. [PMID: 8019946] [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: 01/28/2023]
Abstract
A number of confronting cisternae (CC) were found in canine testicular seminomas (SEM). The CC consisted of two or three closely attached cisternae separated by an electron-dense layer, but occasionally four or more cisternae were stacked in a similar fashion. They showed a short, straight, and direct continuity with the rER or the nuclear envelope. They were found in SEM cells of both interphase and mitotic stages. We statistically examined 18 cases of canine SEM concerning the CC appearance rate in interphase cells (CCARI) and in mitotic cells (CCARM), and the tumor mitotic index (TMI). The SEM were classified into three groups (intratubular SEM without invasion, intratubular SEM with invasion, and diffuse type SEM) using Nielsen and Lein's classification (1974). The CCARI and TMI of the diffuse type SEM were significantly higher than those of the intratubular SEM with invasion, and those of the latter group were significantly higher than those of the intratubular SEM without invasion. On the other hand, the CCARM were similar between these three groups, and this parameter showed a non-significant correlation with the TMI. The present study suggests that the increase in the number of CC in interphase canine SEM cells might be correlated with the tumor progression.
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Affiliation(s)
- S Wakui
- Research Institute of BioSciences, Azabu University, Kanagawa, Japan
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29
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Yokoo K. [The Japan Society of Neonatal Nursing established]. Kango 1992; 44:160-3. [PMID: 1305181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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30
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Abstract
Systemic absorption of water-soluble and water-insoluble drugs through human burn wounds was compared. Serum levels of sulphadiazine were estimated after application of silver sulphadiazine (water-insoluble) cream, sulphadiazine (water-insoluble) cream and sodium sulphadiazine (water-soluble) cream. It was found that the absorption of sodium sulphadiazine was greater than that of sulphadiazine or silver sulphadiazine.
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Affiliation(s)
- H Aoyama
- Department of Plastic Surgery, Aichi Medical University, Japan
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31
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Kimura S, Yokoo K, Ozawa M, Kobayashi Y, Horiuchi H, Kondo M. [The trial use of alpha-IFN in treating a case of chronic myelomonocytic leukemia with splenic infarction]. Gan No Rinsho 1989; 35:615-9. [PMID: 2716192] [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: 01/02/2023]
Abstract
A 75-year-old man, previously diagnosed as having chronic myelomonocytic leukemia, suffered an attack of severe left hypochondralgia in July 1986. A splenic infarction was diagnosed by both ultrasound tomography and computerized tomography. The patient was treated with alpha-Interferon (600 M.U./day i.m.) for cytoreduction in order to prevent a recurrence of the splenic infarction. Twenty-one days later, the peripheral white blood cell count decreased from 44,110 microliters to 9800/microliters and the monocytoid immature cells disappeared. However, severe dementia appeared and so alpha-Interferon therapy was abandoned. In this report the beneficial effects and side effects of alpha-interferon in the treatment of chronic myelomonocytic leukemia are discussed.
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Affiliation(s)
- S Kimura
- 1st Dept. of Int. Med., Kyoto Prefectural Univ. of Med
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32
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Morioka M, Saito Y, Ishii T, Tsuchiya T, Yokoo K. [Bioethics in the perinatal period. A discussion]. Josanpu Zasshi 1989; 43:16-24. [PMID: 2724615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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33
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Taki T, Kozuka S, Izawa Y, Hiramatsu M, Usuda T, Yokoo K, Matsuda T, Kou T, Kobayashi T. Surgical treatment of speckled skin caused by dyschromatosis symmetrica hereditaria--case report. J Dermatol 1986; 13:471-3. [PMID: 3549825 DOI: 10.1111/j.1346-8138.1986.tb02978.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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34
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Yokota H, Yokoo K, Nagata Y. A quantitative assay for the detection of hepatitis B virus DNA employing a biotin-labeled DNA probe and the avidin-beta-galactosidase complex. Biochim Biophys Acta 1986; 868:45-50. [PMID: 3092860 DOI: 10.1016/0167-4781(86)90085-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We have developed a procedure for the quantitation of specific DNA which employs nonradioisotopic probes and beta-galactosidase as a detector. The sample DNA was immobilized on a nitrocellulose filter paper. After the filter paper had been processed to hybridization with a biotinylated probe DNA, the paper was incubated with avidin-beta-galactosidase complex. The optimum ratio of avidin to biotinylated beta-galactosidase for preparation of a complex between the two was determined. The filter paper was punched. Each punched piece was put into a microtiter well and beta-galactosidase activity was measured using 4-methylumbelliferyl beta-D-galactosidase as a substrate. By this method, we were able to quantify as little as a few picograms of specific DNA. The application of this method for the quantitative assay of hepatitis B virus DNA in serum sample is also described. The sensitivity for the detection of the DNA by our method was practically comparable to that of the conventional radioisotopic method. The validity of our method for detection of the virus DNA was further supported by comparison with the serological data.
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35
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Hayakawa M, Sugiyama S, Takamura T, Yokoo K, Iwata M, Suzuki K, Taki F, Takahashi S, Ozawa T. Neutrophils biosynthesize leukotoxin, 9, 10-epoxy-12-octadecenoate. Biochem Biophys Res Commun 1986; 137:424-30. [PMID: 3718512 DOI: 10.1016/0006-291x(86)91227-1] [Citation(s) in RCA: 70] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An epoxy derivative of linoleate, 9,10-epoxy-12-octadecenoate, was demonstrated to be biosynthesized by neutrophils from various sources such as canine and human blood, and guinea-pig peritonea. It was nominated as leukotoxin from its 'toxic' activity onto mitochondrial respiration. From the reaction mixture of leukocytes with linoleate, an isomer of leukotoxin, 12,13-epoxy-9-octadecenoate, and a 'non-toxic' hydroxy derivative of linoleate, 9-hydroxy-12-octadecenoate, were detected. Such a cascade reaction of linoleate by leukocytes was discussed. Biosynthesis of leukotoxin by neutrophils was substantially enhanced by the presence of calcium ion and calcium-ionophore, A23187. Neutrophils contained leukotoxin, ca. 7 f moles/cell, which was extractable by 60% ethanol, but little of the isomer.
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36
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Taki T, Kozuka S, Izawa Y, Usuda T, Hiramatsu M, Matsuda T, Yokoo K, Fukaya Y, Tsubone M, Aoki J. Surgical treatment of skin depigmentation caused by burn injuries. J Dermatol Surg Oncol 1985; 11:1218-21. [PMID: 3905898 DOI: 10.1111/j.1524-4725.1985.tb03100.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Thin split-skin autografts of normal color were performed on depigmented skin caused by second- and third-degree burns in 32 patients. Repigmentation appeared in almost all the recipient areas soon after grafting and no depigmentation occurred again in the treated area.
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37
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Nagata Y, Yokota H, Kosuda O, Yokoo K, Takemura K, Kikuchi T. Quantification of picogram levels of specific DNA immobilized in microtiter wells. FEBS Lett 1985; 183:379-82. [PMID: 3157598 DOI: 10.1016/0014-5793(85)80814-0] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A non-radioisotopic and sensitive method for quantification of specific DNA immobilized in microtiter wells has been developed. This method is based upon the immobilization of DNA in microtiter wells and hybridization with biotinylated DNA probe which is followed by complexing with avidin-beta-galactosidase. By measuring fluorescence emitted from the hydrolyzed product by beta-galactosidase of 4-methylumbelliferyl-beta-D-galactoside, it has become possible to quantify a few picograms of specific DNA in DNA samples immobilized in plastic microtiter wells.
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38
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Takeuchi T, Yokoo K. [Perinatal care. 13. Perinatal transport]. Josanpu Zasshi 1984; 38:1-8. [PMID: 6563091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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39
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Yokoo K, Tokotsu Y. [Timing of the start of breast feeding of extremely premature infants]. Josanpu Zasshi 1983; 37:1024-9. [PMID: 6559892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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40
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Yokoo K, Tokotsu Y, Wada M. [Recent studies on breast feeding of premature infants: literature from overseas]. Josanpu Zasshi 1983; 37:1006-12. [PMID: 6559888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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41
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Takeuchi T, Yokoo K. [Observation of normal newborn infants]. Josanpu Zasshi 1983; 37:527-30. [PMID: 6555275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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42
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Takeuchi T, Yokoo K. [Perinatal care. 3. Progress in the field of perinatal physiology: with special reference to abnormalities of respiratory and circulatory adaptation in fetuses and neonates]. Josanpu Zasshi 1983; 37:suppl 5-8. [PMID: 6555248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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43
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Takeuchi T, Yokoo K. [Perinatal care--2. The role of nursing in perinatal care]. Josanpu Zasshi 1983; 37:suppl 5-8. [PMID: 6553607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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44
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Yokoo K. [Attitudes of pregnant and puerperal patients to hospital routines - with special reference to those concerning delivery]. Josanpu Zasshi 1979; 33:167-76. [PMID: 254735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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45
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Yokoo K. [A child is a blessing]. Josanpu Zasshi 1978; 32:267. [PMID: 248450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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46
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Yokoo K. [Death of a puerperal patient due to transfusion hepatitis]. Josanpu Zasshi 1978; 32:197. [PMID: 246962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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47
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Yokoo K. [An encounter with an obstetrical patient with a past history of gastric cancer]. Josanpu Zasshi 1978; 32:127. [PMID: 246952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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48
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Agarwal R, Yokoo K, Hartnagel H, Kennair JT. Proceedings: A miniature portable microwave power monitor. J Microw Power 1976; 11:153-4. [PMID: 1047678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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49
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Yokoo K. [A nurse's personal experience in interaction with patients: importance of communication]. Kangogaku Zasshi 1976; 40:564-8. [PMID: 820900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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