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Omata J, Ueki Y, Takahashi Y, Tanaka R, Yokoyama Y, Takahashi T, Shodo R, Yamazaki K, Togashi T, Matsuyama H, Takahashi N, Okabe R, Horii A. In Response to Treatment Outcome in Head and Neck Cancer with Distant Metastasis at Initial Diagnosis. Laryngoscope 2024. [PMID: 38757672 DOI: 10.1002/lary.31519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 05/18/2024]
Affiliation(s)
- Jo Omata
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yushi Ueki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yuto Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryoko Tanaka
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryusuke Shodo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Keisuke Yamazaki
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Takafumi Togashi
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Hiroshi Matsuyama
- Department of Otolaryngology, Niigata City general Hospital, Niigata, Japan
| | - Nao Takahashi
- Department of Otolaryngology, Nagaoka Red Cross Hospital, Niigata, Japan
| | - Ryuichi Okabe
- Department of Otolaryngology Head and Neck Surgery, Nagaoka Chuo General Hospital, Niigata, Japan
| | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Kawada K, Furumatsu T, Yokoyama Y, Higashihara N, Tamura M, Ozaki T. Meniscal healing status after medial meniscus posterior root repair negatively correlates with a midterm increase in medial meniscus extrusion. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 38741370 DOI: 10.1002/ksa.12245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/20/2024] [Accepted: 04/26/2024] [Indexed: 05/16/2024]
Abstract
PURPOSE The second-look arthroscopic score of pullout repair for medial meniscus posterior root tears (MMPRTs) is associated with contemporaneous clinical scores and progression of cartilage damage. However, the relationship among these scores, midterm clinical scores and magnetic resonance imaging (MRI) evaluations is unknown. The relationship between the second-look arthroscopic score at 1 year and the clinical scores or MRI at 3 years was evaluated. METHODS Sixty-three patients were included. Medial meniscus extrusion (MME) was evaluated preoperatively and at 3 years postoperatively. Clinical scores were evaluated preoperatively, and 1 and 3 years postoperatively. Meniscal healing status was assessed using the semiquantitative second-look arthroscopic score at 1 year postoperatively. Correlation coefficients between patient characteristics, postoperative clinical scores or second-look arthroscopic score and the change in MME (ΔMME) were evaluated. Multiple regression analysis was performed on the ΔMME to evaluate the effects of patient characteristics and second-look arthroscopic scores. RESULTS No significant correlation was observed between patient characteristics and ΔMME. In contrast, a significant correlation was found between the second-look arthroscopic score and ΔMME (p < 0.001) and visual analogue scale pain score (p = 0.016) at 3 years postoperatively. In the subitems of the second-look arthroscopic score, width (p < 0.001) and stability (p = 0.009) scores also showed significant correlations with ΔMME. Multiple regression analysis showed a significant association between the second-look arthroscopic score and ΔMME (p = 0.001). CONCLUSIONS The second-look arthroscopic score at 1 year postoperatively correlated with the ΔMME and clinical score at 3 years postoperatively. Second-look arthroscopic scores predict midterm meniscal function after pullout repair of MMPRTs. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
- Department of Orthopaedic Surgery, Japanese Red Cross Okayama Hospital, Okayama, Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Kawada K, Furumatsu T, Yokoyama Y, Higashihara N, Tamura M, Ozaki T. Longitudinal changes in medial meniscus extrusion and clinical outcomes following pullout repair for medial meniscus posterior root tears: a 3-year evaluation. Eur J Orthop Surg Traumatol 2024; 34:2021-2029. [PMID: 38517526 PMCID: PMC11101586 DOI: 10.1007/s00590-024-03889-8] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/01/2024] [Indexed: 03/24/2024]
Abstract
PURPOSE We aimed to evaluate the longitudinal changes in medial meniscus extrusion (MME) and clinical scores at multiple time points up to 3 years after pullout repair for medial meniscus posterior root tears (MMPRTs). METHODS This retrospective case series study included 64 patients who underwent pullout repair for MMPRTs and four MRI evaluations (preoperatively and at 3 months, 1 year, and 3 years postoperatively). MME was measured during the same time points. Clinical scores were assessed four times: preoperatively and at 1, 2, and 3 years postoperatively. Additionally, a multivariate analysis was performed on the change in MME (ΔMME) from the preoperative measurement point to 3 years postoperatively. RESULTS The ΔMME per month from the preoperative measurement point to 3 months postoperatively, from 3 months to 1 year postoperatively, and from 1 to 3 years postoperatively were 0.30, 0.05, and 0.01 mm/month, respectively. All clinical scores significantly improved 3 years postoperatively (p < 0.001). In a multiple regression analysis for ΔMME from the preoperative measurement point to 3 years postoperatively, sex significantly affected the outcome (p = 0.039). CONCLUSION Following pullout repair for MMPRTs with well-aligned lower extremities, although MME progression could not be entirely prevented, the rate of progression decreased over time, and clinical scores improved. In particular, MME progressed markedly during the first 3 months postoperatively. Additionally, sex had a significant influence on MME progression, suggesting that males may be able to expand the indications of pullout repair for MMPRTs.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
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Nakanishi R, Ashi J, Okamura S, Yokoyama Y, Miyairi Y. Understanding paleo-earthquakes in the Kuril Trench based on Late-Holocene tsunami deposits in the distal region from wave sources, northern Hidaka, Hokkaido, Japan. PLoS One 2024; 19:e0298720. [PMID: 38630661 PMCID: PMC11023580 DOI: 10.1371/journal.pone.0298720] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 01/29/2024] [Indexed: 04/19/2024] Open
Abstract
Geological evidence, such as tsunami deposits, is crucial for studying the largest rupture zone of the Kuril Trench in Hokkaido, Japan, due to its poor historical record. Although 17th-century tsunami deposits are widely distributed across Hokkaido, the presence of multiple wave sources during that period, including the collapse of Mt. Komagatake, complicates the correlation with their wave sources. Understanding the regional distribution of these tsunami deposits can provide valuable data to estimate the magnitude of megathrust earthquakes in the Kuril Trench. The northern part of Hidaka, Hokkaido, where tsunamis from multiple wave sources are expected to overlap, is distant from the Kuril Trench. To clarify the depositional history of tsunami deposits in such distal areas, evaluating the influence of the depositional environments on the event layer preservation becomes even more critical. We conducted field surveys in Kabari, located in the northern Hidaka region, identifying three sand layers from the 10th to the 17th century and two layers dating beyond 2.3 thousand years ago. The depositional ages of most sand layers potentially correlate with tsunami deposits resulting from the Kuril Trench earthquakes. Utilizing reconstructed paleo-sea level data, we estimated that most sand layers reached approximately 2 m in height. However, it is noteworthy that the latest sand layer from the 17th century exhibited an unusual distribution, more than 3 m in height. This suggests a different wave source as the Mt. Komagatake collapse. The discovery of multiple sand layers and their distributions is crucial to constraining the maximum magnitude of giant earthquakes in the Kuril Trench and understanding the volcanic tsunami events related to Mt. Komagatake.
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Affiliation(s)
- Ryo Nakanishi
- Graduate School of Science, Kyoto University, Kyoto, Kyoto, Japan
| | - Juichiro Ashi
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
- Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Satoshi Okamura
- Hokkaido University of Education, Sapporo, Hokkaido, Japan
- Hokkaido Soil Research Co-operation, Sapporo, Hokkaido, Japan
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
- Department of Earth and Planetary Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Graduate Program on Environmental Science, Graduate School of Arts and Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa, Japan
- Research School of Physics, The Australian National University, Canberra, Australia
| | - Yosuke Miyairi
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
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Tsujino M, Hirabayashi S, Miyairi Y, Ijichi T, Miyajima T, Yokoyama Y. Groundwater dynamics on small carbonate islands: Insights from radiocarbon and stable isotopes in Kikai Island, Southwest Japan. Sci Total Environ 2024; 921:171049. [PMID: 38369153 DOI: 10.1016/j.scitotenv.2024.171049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/11/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
Groundwater, the world's largest freshwater resource, faces significant challenges due to the overexploitation and depletion of aquifers in the 21st century. Small island groundwater aquifers are particularly valuable, and a scientific understanding of the behavior of subsurface water systems is vital. A comprehensive study using radiocarbon, stable oxygen isotopes, stable hydrogen isotopes, and hardness analysis (Δ14C, δ18O, δD, Ca, Mg) of groundwater was conducted in Kikai Island, a southern island in the Amami archipelago, Japan. The geological features and small size of the island make it an ideal location for assessing groundwater recharge and discharge relationships. Groundwater dynamics were investigated using samples collected seasonally from 15 points around the island (wells, springs, and an underground dam). Δ14C results indicated that despite considerable differences in precipitation, spatial variations were more prominent than seasonal variations, suggesting the presence of a large groundwater reservoir. The stable isotopes and hardness values, commonly used to detect groundwater dynamics, did not provide clear evidence to support this trend for the study site, a low-lying small island. However, the combination of deuterium excess (d-excess) values with radiocarbon analysis has the potential to provide a better understanding of groundwater flow. This study further illustrates that a combined approach utilizing Δ14C, δ18O, δD, and hardness levels can yield invaluable insights into groundwater dynamics. Considering geomorphic and geological features, groundwater in Kikai Island was categorized into five groups, providing insights into spatial groundwater flow. Results of this study indicate that the use of 14C allows the detection of groundwater movement with a high dynamic range and increased sensitivity, deepening our understanding of the diverse carbon sources that influence the groundwater system. Insights from this study are especially important for the efficient water management in comparable small carbonate islands and for tackling issues associated to overexploitation, pollution, and water scarcity.
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Affiliation(s)
- Mana Tsujino
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan; Programs in English at Komaba (PEAK), International Program on Environmental Sciences, Faculty of Arts and Sciences, Graduate Program on Environmental Science, Graduate School of Arts and Sciences, The University of Tokyo, Japan.
| | - Shoko Hirabayashi
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
| | - Yosuke Miyairi
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
| | - Tugeru Ijichi
- Kagoshima Prefecture Endangered Wild Fauna and Flora Conservation Promotion Committee, Japan; NPO Kikai Island Coral Reef Science Institute, Kagoshima, Japan
| | - Toshihiro Miyajima
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan; Programs in English at Komaba (PEAK), International Program on Environmental Sciences, Faculty of Arts and Sciences, Graduate Program on Environmental Science, Graduate School of Arts and Sciences, The University of Tokyo, Japan; Department of Earth and Planetary Sciences, Graduate School of Science, The University of Tokyo, Japan; Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Japan; Research School of Physics, The Australian National University, Canberra ACT0200, Australia.
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Omata J, Ueki Y, Takahashi Y, Tanaka R, Yokoyama Y, Takahashi T, Shodo R, Yamazaki K, Togashi T, Matsuyama H, Takahashi N, Okabe R, Horii A. Treatment Outcome in Head and Neck Cancer With Distant Metastasis at Initial Diagnosis. Laryngoscope 2024; 134:1679-1686. [PMID: 37698411 DOI: 10.1002/lary.31047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/15/2023] [Accepted: 08/29/2023] [Indexed: 09/13/2023]
Abstract
OBJECTIVE Recurrent/metastatic head and neck squamous cell carcinoma (HNSCC) treatment has changed dramatically with the introduction of immune checkpoint inhibitors (ICIs). However, there are few reports of treatment outcomes on HNSCC with distant metastasis (M1) at initial diagnosis, and its treatment strategy has not been standardized. We aimed to analyze the treatment outcome and prognostic factors of patients with HNSCC with initial M1 disease. METHODS In this multi-institutional retrospective study, 98 patients with HNSCC were initially diagnosed with M1 disease between 2007 and 2021. The patients were divided into the non-palliative (received any systemic chemotherapy, n = 60) and palliative (did not receive systemic chemotherapy, n = 38) groups. Overall survival (OS) was compared between the groups. In the non-palliative group, predictors of OS were explored based on patient characteristics and treatment details. RESULTS The median OS in the non-palliative group was 15 months (95% confidence interval [CI], 10-20), which was significantly longer than that in the palliative group (3 months, 95% CI, 2-5) (p < 0.001). Multivariate analysis revealed that administration of locoregional radiation therapy (RT) (hazard ratio [HR] 0.407 [95% CI 0.197-0.844]; p = 0.016), ICIs (HR 0.216 [95% CI 0.088-0.532]; p < 0.001) and RT/surgery for distant metastasis (HR 0.373 [95% CI 0.150-0.932]; p = 0.034) were the independent prognostic factors of OS. CONCLUSION An intensive treatment strategy combining systemic therapy using ICIs with RT/surgery for locoregional or distant metastasis may yield a survival benefit for patients with HNSCC with M1 disease. LEVEL OF EVIDENCE 4 Laryngoscope, 134:1679-1686, 2024.
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Affiliation(s)
- Jo Omata
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yushi Ueki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yuto Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryoko Tanaka
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryusuke Shodo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Keisuke Yamazaki
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Takafumi Togashi
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Hiroshi Matsuyama
- Department of Otolaryngology, Niigata City general Hospital, Niigata, Japan
| | - Nao Takahashi
- Department of Otolaryngology, Nagaoka Red Cross Hospital, Niigata, Japan
| | - Ryuichi Okabe
- Department of Otolaryngology Head and Neck Surgery, Nagaoka Chuo General Hospital, Niigata, Japan
| | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Ohno Y, Ueki Y, Oshima S, Omata J, Yokoyama Y, Takahashi T, Shodo R, Yamazaki K, Horii A. Aortic rupture following acute aortitis in a patient with head and neck carcinoma treated with nivolumab: a rare but severe immune-related adverse event. Eur Arch Otorhinolaryngol 2024; 281:2037-2040. [PMID: 38308762 DOI: 10.1007/s00405-024-08495-2] [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: 11/03/2023] [Accepted: 01/22/2024] [Indexed: 02/05/2024]
Abstract
INTRODUCTION Immune-related adverse events (irAEs) due to immune checkpoint inhibitors may lead to discontinuation and treatment-related death. Acute aortitis is a rare but severe irAE. CASE PRESENTATION A 67-year-old man with recurrent lower gingival carcinoma received nivolumab therapy. Twenty-three months later, he experienced chest compression, which resulted in syncope. Following a whole-body computed tomography (CT) scanning, which revealed diffuse thickening of the aorta, and systemic assessments of the causes of aortitis, he was diagnosed with acute aortitis due to irAE. Nivolumab discontinuation and oral steroids improved CT findings. However, 11 months after nivolumab discontinuation, he developed an aortic aneurysmal rupture. Endovascular aortic repair rescued him. A durable anti-cancer response was still observed 4 months after the aortic rupture. CONCLUSION Although severe irAE, such as acute aortitis, occurred, the patient may still achieve a durable response. A broad examination and prompt treatment of irAE can help improve the patient's survival.
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Affiliation(s)
- Yuki Ohno
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 950-8510, Japan
| | - Yushi Ueki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 950-8510, Japan.
| | - Shusuke Oshima
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 950-8510, Japan
| | - Jo Omata
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 950-8510, Japan
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 950-8510, Japan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 950-8510, Japan
| | - Ryusuke Shodo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 950-8510, Japan
| | - Keisuke Yamazaki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 950-8510, Japan
| | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 950-8510, Japan
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Kawada K, Furumatsu T, Tamura M, Higashihara N, Yokoyama Y, Ozaki T. Longitudinal changes in medial knee joint space narrowing after medial meniscus posterior root repair: A 2-year follow-up study. Knee 2024; 47:92-101. [PMID: 38310818 DOI: 10.1016/j.knee.2024.01.005] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 12/01/2023] [Accepted: 01/18/2024] [Indexed: 02/06/2024]
Abstract
BACKGROUND Despite good clinical results, repair of medial meniscus (MM) posterior root tears (MMPRTs) may not completely prevent knee osteoarthritis progression. This study evaluated changes in the medial joint space (MJS) during the first and second years after repair, compared to narrowing in the contralateral knee, using fixed-flexion view (FFV) radiographs. METHODS Fifty-four patients who underwent pull-out repair for a unilateral MMPRT were included. FFV radiographs were obtained pre-operatively and at the 1- and 2-year post-repair timepoints to evaluate changes in the MJS and Kellgren-Lawrence grade bilaterally. Clinical outcomes were also evaluated. RESULTS The change in the MJS was greater in MMPRT knees than in contralateral knees during the first year (0.48 ± 0.80 mm vs. 0.09 ± 0.49 mm, p < 0.001), but this difference lessened in the second year (0.09 ± 0.36 mm vs. 0.07 ± 0.38 mm, p = 0.285). Kellgren-Lawrence grade progression in MMPRT knees was less in the second year. Clinical outcomes significantly improved at both 1 and 2 years post-repair than the pre-operative values (p < 0.001), with continued improvement in clinical outcomes in the second year. There was no significant correlation between patient characteristics and the change in the MJS from preoperatively to 2 years postoperatively. CONCLUSION Pull-out repair for MMPRTs did not completely prevent MJS narrowing, but the rate of narrowing decreased in the second year (mean, 0.09 mm) compared to that in the first year (mean, 0.48 mm). MJS narrowing in the second year after MM posterior root repair was comparable to that of the contralateral knee. Clinical outcomes further improved over the second year after repair. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
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Tamura M, Furumatsu T, Yokoyama Y, Higashihara N, Kawada K, Ozaki T. Superior outcomes of pullout repairs for medial meniscus posterior root tears in partial tear compared to complete radial tear. Knee Surg Relat Res 2024; 36:8. [PMID: 38331953 PMCID: PMC10854085 DOI: 10.1186/s43019-023-00206-1] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/15/2023] [Indexed: 02/10/2024] Open
Abstract
PURPOSE To reveal the outcomes of partial medial meniscus posterior root tears following transtibial pullout repair compared with the outcomes of complete radial meniscus posterior root tears. MATERIALS AND METHODS We retrospectively evaluated 15 consecutive patients (male/female, 5/10; average age, 64.4 years) who underwent transtibial pullout repair for partial medial meniscus posterior root tears and compared their results with those of 86 consecutive patients who underwent the same surgery for complete medial meniscus posterior root tears. All patients underwent second-look arthroscopy on average 1 year postoperatively, and a semi-quantitative meniscal healing score (anteroposterior width, stability, and synovial coverage, total 10 points) was evaluated. Medial meniscus extrusion was evaluated preoperatively and at second-look arthroscopy. RESULTS Postoperative clinical scores were not significantly different in the short term. However, second-look arthroscopy revealed a significant difference in repaired meniscal stability (partial tear; 3.3 points, complete tear; 2.3 points, p < 0.001) and total meniscal healing scores (partial tear; 8.3 points, complete tear; 7.1 points, p < 0.001). Medial meniscus extrusion progression was significantly different (partial tear; 0.4 mm, complete tear; 1.0 mm, p < 0.001). CONCLUSION Partial medial meniscus posterior root tears showed better meniscal healing and less medial meniscus extrusion progression following pullout repair than complete medial meniscus posterior root tears.
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Affiliation(s)
- Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan.
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Tamura M, Furumatsu T, Yokoyama Y, Kintaka K, Higashihara N, Kawada K, Ozaki T. Assessing the Frequency and Effectiveness of Various Arthroscopic Treatments in the Management of Symptomatic Isolated Medial Meniscus Injuries Including Medial Meniscus Posterior Root Tear: A Retrospective Observational Cohort Study. Acta Med Okayama 2024; 78:21-27. [PMID: 38419311 DOI: 10.18926/amo/66667] [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] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The use of various strategies for arthroscopic meniscal repairs to save the meniscus and prevent the progression of knee osteoarthritis has gradually increased. We investigated the frequency of various arthroscopic treatments and the short-term clinical outcomes of symptomatic isolated medial meniscus (MM) injuries. This retrospective observational study included 193 patients (197 knees) who underwent arthroscopic meniscal treatment for isolated MM injuries between January 2016 and April 2019. Arthroscopic meniscal repairs were divided into two groups: transtibial pullout repairs of MM posterior root tears (MMPRTs) and arthroscopic meniscal repairs for other types of MM injuries. MMPRT pullout repair, other meniscal repairs, and partial meniscectomy were performed in 71.0%, 16.8%, and 12.2% of the knees, respectively. The ratio of women to men and the patient age were higher in the pullout-repair group than the meniscal-repair group. The Preoperative Knee Injury and Osteoarthritis Outcome Score subscale (as an index of daily living activities) was significantly lower in the pullout-repair group than the meniscus-repair group. However, no significant differences were observed in these scores among the two groups postoperatively. Our results suggest that familiarity with the diagnosis and treatment of MMPRTs is necessary for orthopedic surgeons to manage isolated MM injuries.
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Affiliation(s)
- Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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11
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Shodo R, Yamazaki K, Ueki Y, Takahashi T, Yokoyama Y, Horii A. Sarcopenia Index Predicts Short-Term Prognosis of Head and Neck Squamous Cell Carcinoma. Nutr Cancer 2024; 76:149-159. [PMID: 38066722 DOI: 10.1080/01635581.2023.2290299] [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] [Received: 08/01/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024]
Abstract
The sarcopenia index (SI), calculated as [(serum creatinine/serum cystatin C) × 100], maybe a simpler alternative for measuring muscle mass than computed tomography (CT) and bioelectrical impedance analysis (BIA). We enrolled 112 patients with head and neck cancers (HNC). The correlation of the SI with muscle surface area measured by CT (CTMSA, n = 82) and muscle mass by BIA (BIA-MM, n = 41) was tested. Cutoff values were set for SI, CTMSA, and BIA-MM. Overall survival (OS) was compared between the high- and low-SI/CTMSA/BIA-MM groups. The SI was correlated with CTMSA (r = 0.43) and BIA-MM (r = 0.52). The optimal cutoff values of SI, CTMSA, and BIA-MM were 76.1 (area under the curve [AUC] = 0.67), 129.2 (AUC = 0.59), and 46.1 (AUC = 0.62), respectively. OS was significantly lower in the low-SI group (78% at 1 year and 69% at 2 years) than in the high-SI group (94% at 1 year and 86% at 2 years; p = 0.006). There was no significant difference in OS between the low-and high-CTMSA and -BIA-MM groups. The SI, which only requires a blood sample, is a useful marker of muscle mass that correlates with short-term prognosis in patients with HNC.
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Affiliation(s)
- Ryusuke Shodo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Keisuke Yamazaki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yushi Ueki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Tamura M, Furumatsu T, Yokoyama Y, Higashihara N, Kawada K, Ozaki T. Initial tension at suture fixation affects the suture breakage following medial meniscus posterior root repair: A retrospective cohort study. J ISAKOS 2024:S2059-7754(24)00004-X. [PMID: 38211771 DOI: 10.1016/j.jisako.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/28/2023] [Accepted: 01/04/2024] [Indexed: 01/13/2024]
Abstract
OBJECTIVES This study aimed to investigate whether the initial suture tension when pullout sutures are fixed affects postoperative clinical outcomes following medial meniscus posterior root repair. METHODS The data of 48 patients who underwent transtibial pullout repair using two simple stitches (outer and inner sutures) with an additional all-inside posteromedial pullout were retrospectively investigated. The patients were sequentially divided into two groups to compare the clinical efficacy of the initial pullout tension (N) when pullout sutures were fixed: the 30 N Group (April 2019 to September 2019, 24 patients) and the 15 N group (October 2019 to February 2020, 24 patients). The rate of suture breakage (suture cutout or rupture) at the second-look arthroscopy at 1 year postoperatively and clinical outcomes at 2 years postoperatively were compared between the two groups. RESULTS In both groups, each clinical score significantly improved at 2 years postoperatively. At the second-look arthroscopy, the rate of posteromedial suture breakage was significantly higher in the 30 N group (19 patients, 79 %) than in the 15 N group (10 patients, 42 %); the rate of outer suture breakage was also higher in the 30 N group (five patients, 21 %) than in the 15 N group (no patients). On comparing 2 years of preoperative clinical scores between the groups categorized according to posteromedial suture breakage, the pain score was significantly higher in the suture breakage group. CONCLUSIONS The initial tension of pullout repair of the medial meniscus posterior root tear is related to suture breakages. To prevent suture breakage, 15 N is a more initially suitable condition than 30 N. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan.
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
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Ota H, Ueki Y, Yamazaki K, Shodo R, Takahashi T, Yokoyama Y, Horii A. Head and neck cancer fungating wounds: a novel odour transferrer. BMJ Support Palliat Care 2024; 13:e833-e835. [PMID: 36028291 DOI: 10.1136/spcare-2022-003824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/12/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVE The management for malodour of malignant fungating wounds (MFWs) in head and neck cancer (HNC) is unestablished. We evaluated the effects of a novel odour transferrer on malodour generated by MFWs in patients with HNC. METHODS A spray-type odour transferrer approved by the Japanese government for safe use in humans produces a good scent by binding to bad odour. The odour of MFWs in 13 patients with HNC was scored by 37 medical staff and the patients' families using an odour scale ranging from 0 to 4 before and 1 week after application of the odour transferrer. RESULTS The odour score marked by all investigators (n=37), nurses (n=21) and doctors (n=11) decreased significantly (p<0.01). The odour score decreased by more than 2 points for 73% of all investigators after odour transferrer application. CONCLUSION This novel odour transferrer functions as an effective deodorant for MFWs in patients with HNC. It can be used by non-medical staff and may benefit patients with bad odours arising from MFWs as well as their families and medical staff.
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Affiliation(s)
- Hisayuki Ota
- Otolaryngology Head and Neck Surgery, Niigata University Faculty of Medicine Graduate School of Medical and Dental Science, Niigata, Japan
| | - Yushi Ueki
- Otolaryngology Head and Neck Surgery, Niigata University Faculty of Medicine Graduate School of Medical and Dental Science, Niigata, Japan
| | - Keisuke Yamazaki
- Otolaryngology Head and Neck Surgery, Niigata University Faculty of Medicine Graduate School of Medical and Dental Science, Niigata, Japan
| | - Ryusuke Shodo
- Otolaryngology Head and Neck Surgery, Niigata University Faculty of Medicine Graduate School of Medical and Dental Science, Niigata, Japan
| | - Takeshi Takahashi
- Otolaryngology Head and Neck Surgery, Niigata University Faculty of Medicine Graduate School of Medical and Dental Science, Niigata, Japan
| | - Yusuke Yokoyama
- Otolaryngology Head and Neck Surgery, Niigata University Faculty of Medicine Graduate School of Medical and Dental Science, Niigata, Japan
| | - Arata Horii
- Otolaryngology Head and Neck Surgery, Niigata University Faculty of Medicine Graduate School of Medical and Dental Science, Niigata, Japan
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Abe K, Takahashi T, Yokoyama Y, Shodo R, Ueki Y, Yamazaki K, Horii A. Near-Infrared Autofluorescence Identification of Ectopic Parathyroid Lesions. Laryngoscope 2024; 134:496-500. [PMID: 37140028 DOI: 10.1002/lary.30728] [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: 01/31/2023] [Revised: 03/10/2023] [Accepted: 04/18/2023] [Indexed: 05/05/2023]
Abstract
Ectopic parathyroid lesions can be difficult to detect. In the present study, we used near-infrared autofluorescence imaging (NIFI) in three cases of ectopic parathyroid lesions. Our results suggest that NIFI may be a confirmation tool for parathyroid pathology and an intraoperative navigation tool in vivo and ex vivo. Laryngoscope, 134:496-500, 2024.
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Affiliation(s)
- Kanako Abe
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryusuke Shodo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yushi Ueki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Keisuke Yamazaki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Hiranaka T, Furumatsu T, Yokoyama Y, Higashihara N, Tamura M, Kawada K, Xue H, Ozaki T. Intercondylar notch width and osteophyte width impact meniscal healing and clinical outcomes following transtibial pullout repair of medial meniscus posterior root tears. Knee Surg Sports Traumatol Arthrosc 2024; 32:116-123. [PMID: 38226691 DOI: 10.1002/ksa.12032] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 12/08/2023] [Indexed: 01/17/2024]
Abstract
PURPOSE This retrospective study aimed to investigate the relationship between intercondylar notch width (ICNW), osteophyte width (OW), and the healing of medial meniscus posterior root tears (MMPRTs) following arthroscopic pullout repair. METHODS The study included 155 patients diagnosed with MMPRTs who underwent transtibial pullout repair. Meniscal healing status was evaluated on second-look arthroscopy using a previously reported meniscus healing score. Patients were divided into two groups based on this score: the high healing score (group HH, healing score ≥ 8 points) and suboptimal healing score (group SO, healing score ≤ 6 points) groups. Computed tomography scans were performed on patients 1 week postsurgery. ICNW and OW widths were measured and relatively evaluated based on their ratio to the intercondylar distance (ICD), represented as the ICNW/ICD ratio (%) and OW/ICD ratio (%), respectively. Patient-reported outcomes were assessed preoperatively and on second-look arthroscopy using the Knee injury and Osteoarthritis Outcome Score (KOOS) and visual analogue scale (VAS). RESULTS There were no significant demographic differences between the SO and HH group (n = 35 and 120 patients, respectively). Regarding radiographic measurements, significant differences were observed in the ICNW/ICD ratio (group SO, 24.2%; group HH, 25.2%; p = 0.024), OW (group SO, 2.6 mm; group HH, 2.0 mm; p < 0.001), and OW/ICD ratio (group SO, 3.5%; group HH, 2.7%; p < 0.001). Both groups had similar preoperative clinical scores, but postoperative clinical scores, including KOOS-activities of daily living (group SO, 83.4; group HH, 88.7; p = 0.035) and VAS (group SO, 19.1; group HH, 11.3; p = 0.005), were significantly better in group HH. CONCLUSION The study suggests that ICNW and OW may play a crucial role in MMPRT healing following arthroscopic pullout repair, as evidenced by the worse clinical outcomes associated with a narrower ICNW and wider OW. These findings highlight the potential significance of ICNW and OW assessments when evaluating meniscal repair indications. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Takaaki Hiranaka
- Department of Orthopaedic Surgery, Okayama Saiseikai General Hospital, Okayama, Japan
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Haowei Xue
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
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Hiranaka T, Furumatsu T, Yokoyama Y, Higashihara N, Tamura M, Kawada K, Ozaki T. Weight loss enhances meniscal healing following transtibial pullout repair for medial meniscus posterior root tears. Knee Surg Sports Traumatol Arthrosc 2024; 32:143-150. [PMID: 38226719 DOI: 10.1002/ksa.12037] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 12/11/2023] [Indexed: 01/17/2024]
Abstract
PURPOSE This study investigated the impact of weight change on the success of transtibial pullout repair for medial meniscus (MM) posterior root tears (MMPRTs). METHODS The study included 129 patients diagnosed with MMPRTs who had undergone transtibial pullout repair. The patients were screened between July 2018 and November 2021. Patient-reported outcomes were assessed preoperatively and at 12 months postoperatively using the Knee injury and Osteoarthritis Outcome Score (KOOS). MM extrusion (MME) and ΔMME (postoperative MME - preoperative MME) were calculated preoperatively and at 12 months postoperatively using magnetic resonance imaging. RESULTS Patients were divided into weight loss (body mass index [BMI] decrease of at least 0.5 kg/m2 after primary repair; n = 63) and weight gain (BMI increase of at least 0.5 kg/m2 ; n = 66) groups. Both groups had similar demographic variables and preoperative clinical scores; patient-reported outcomes significantly improved postoperatively. The weight loss group had significantly greater improvement in KOOS-quality of life (weight loss, 29.4 ± 23.7; weight gain, 23.9 ± 27.6; p = 0.034), lower postoperative MME (weight loss, 3.9 ± 1.7 mm; weight gain, 4.2 ± 1.2 mm; p = 0.043) and lower ΔMME (weight loss, 0.8 ± 0.8 mm; weight gain, 1.2 ± 0.9 mm; p = 0.002) than the weight gain group. Total arthroscopic healing scores (weight loss, 7.6 ± 1.0; weight gain, 7.2 ± 1.5; p = 0.048) and associated subscales, including anteroposterior bridging tissue width (weight loss, 4.0 ± 0.0; weight gain, 3.8 ± 0.7; p = 0.004) and MM posterior root stability (weight loss, 2.6 ± 0.7; weight gain, 2.4 ± 0.7; p = 0.041), significantly differed between the groups. CONCLUSIONS Weight loss was associated with better meniscal healing and less MME progression after MMPRT repair, highlighting the significance of weight management in individuals undergoing meniscal surgery. These findings provide valuable insights into the clinical significance of weight loss in the success of transtibial pullout repair for MMPRTs. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Takaaki Hiranaka
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
- Department of Orthopaedic Surgery, Okayama Saiseikai General Hospital, Okayama, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
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Ueki Y, Ohshima S, Yokoyama Y, Takahashi T, Shodo R, Yamazaki K, Ohtaki K, Saijo K, Tanaka R, Togashi T, Sato Y, Takano S, Omata J, Takahashi N, Okabe R, Horii A. Multicenter prospective phase II trial of concurrent chemoradiotherapy with weekly low-dose carboplatin for cisplatin-ineligible patients with advanced head and neck squamous cell carcinoma. Int J Clin Oncol 2024; 29:20-26. [PMID: 37843751 DOI: 10.1007/s10147-023-02423-w] [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: 07/27/2023] [Accepted: 10/02/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND The optimal chemotherapy regimen in concurrent chemoradiotherapy (CCRT) for cisplatin-ineligible head and neck squamous cell carcinoma (HNSCC) has not been established. We aimed to evaluate the feasibility, efficacy, and safety of CCRT with weekly low-dose carboplatin for the treatment of advanced HNSCC in patients who are cisplatin-ineligible. METHODS This prospective phase II study enrolled adult patients (age ≥ 20 years) with HNSCC receiving whole-neck irradiation including bilateral levels II-IV and who were aged (≥ 75-year-old patients with 40 mL/min estimated glomerular filtration rate [eGFR] or better) or had renal dysfunction (< 75-year-old patients with 30-60 mL/min eGFR). Carboplatin was administered weekly (area under the plasma concentration-time curve = 2.0) for up to seven cycles during concurrent radiotherapy (70 Gy/35 Fr). The primary endpoint was the completion rate of CCRT. Secondary endpoints included overall response rate and incidence of adverse events. RESULTS Among the 30 patients enrolled, 28 were men. The median age was 73.5 years. Seventeen patients were < 75 years whereas 13 were ≥ 75 years old. The completion rate of CCRT was 90%. The overall response rate was 90%. Grade 3 adverse events that occurred in 10% or more patients were oral/pharyngeal mucositis (47%), leukocytopenia (20%), and neutropenia (10%). Grade 4 adverse events occurred in one patient (elevation of alanine aminotransferase level). No treatment-related deaths occurred. CONCLUSION CCRT with weekly low-dose carboplatin is a promising treatment option, with favorable feasibility, efficacy, and acceptable toxicity, for patients who are cisplatin-ineligible with advanced HNSCC. CLINICAL TRIAL REGISTRATION NUMBER jRCTs031190028.
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Affiliation(s)
- Yushi Ueki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-Dori, Chuo-Ku, Niigata City, Niigata, 950-8510, Japan.
| | - Shusuke Ohshima
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-Dori, Chuo-Ku, Niigata City, Niigata, 950-8510, Japan
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-Dori, Chuo-Ku, Niigata City, Niigata, 950-8510, Japan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-Dori, Chuo-Ku, Niigata City, Niigata, 950-8510, Japan
| | - Ryusuke Shodo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-Dori, Chuo-Ku, Niigata City, Niigata, 950-8510, Japan
| | - Keisuke Yamazaki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-Dori, Chuo-Ku, Niigata City, Niigata, 950-8510, Japan
| | - Kohei Ohtaki
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata City, Niigata, Japan
| | - Kohei Saijo
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata City, Niigata, Japan
| | - Ryoko Tanaka
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata City, Niigata, Japan
| | - Takafumi Togashi
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata City, Niigata, Japan
| | - Yuichiro Sato
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata City, Niigata, Japan
| | - Satoshi Takano
- Department of Otorhinolaryngology, Nagaoka Red Cross Hospital, Nagaoka City, Niigata, Japan
| | - Jo Omata
- Department of Otorhinolaryngology, Nagaoka Red Cross Hospital, Nagaoka City, Niigata, Japan
| | - Nao Takahashi
- Department of Otorhinolaryngology, Nagaoka Red Cross Hospital, Nagaoka City, Niigata, Japan
| | - Ryuichi Okabe
- Department of Otorhinolaryngology, Nagaoka Red Cross Hospital, Nagaoka City, Niigata, Japan
| | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-Dori, Chuo-Ku, Niigata City, Niigata, 950-8510, Japan
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Ueki Y, Ohshima S, Omata J, Yokoyama Y, Takahashi T, Shodo R, Yamazaki K, Horii A. Role of eosinophilia in patients with recurrent/metastatic head and neck squamous cell carcinoma treated with nivolumab: Prediction of immune-related adverse events and favorable outcome. Cancer Med 2023; 12:20810-20820. [PMID: 37902133 PMCID: PMC10709726 DOI: 10.1002/cam4.6648] [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: 07/05/2023] [Revised: 09/24/2023] [Accepted: 10/03/2023] [Indexed: 10/31/2023] Open
Abstract
INTRODUCTION Immune-related adverse events (irAEs) are prognostic factors for patients on nivolumab. However, predictors of irAEs have not yet been identified. We aimed to investigate the predictors of irAEs occurrence and nivolumab discontinuation due to irAEs. METHODS Sixty-two patients with recurrent/metastatic head and neck squamous cell carcinoma received nivolumab therapy between June 2017 and December 2020. Treatment outcome was compared between the groups with or without irAEs. The irAE (+) group was further divided by nivolumab discontinuation. Progression-free survival (PFS) and overall survival (OS) were compared between the groups. Predictors of irAE occurrence were analyzed. RESULTS Twenty-one patients (33.9%) developed irAEs, and six (28.6%) discontinued nivolumab due to severe irAEs. The irAE (+) group had significantly longer PFS and OS than the irAE (-) group (median PFS, 12.7 vs. 1.9 months; median OS, 33.1 vs. 12.8 months). The treatment outcomes in the discontinuation group were comparable to those in the non-discontinuation group. The maximum absolute eosinophil count (AEC) during nivolumab therapy was significantly higher in the irAE (+) group than in the irAE (-) group (548.8 vs. 182) and higher in the discontinuation group than in the non-discontinuation group (729.3 vs. 368.6). The receiver operating characteristic curve showed that the maximum AEC had a moderate-to-high accuracy for predicting irAE occurrence (area under the curve [AUC], 0.757) and nivolumab discontinuation (AUC, 0.893). DISCUSSION Monitoring AEC during nivolumab therapy may be useful in predicting irAE occurrence, nivolumab discontinuation, and disease prognosis.
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Affiliation(s)
- Yushi Ueki
- Department of Otolaryngology Head and Neck SurgeryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Shusuke Ohshima
- Department of Otolaryngology Head and Neck SurgeryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Jo Omata
- Department of Otolaryngology Head and Neck SurgeryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck SurgeryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck SurgeryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Ryusuke Shodo
- Department of Otolaryngology Head and Neck SurgeryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Keisuke Yamazaki
- Department of Otolaryngology Head and Neck SurgeryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Arata Horii
- Department of Otolaryngology Head and Neck SurgeryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
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Kawada K, Furumatsu T, Tamura M, Xue H, Higashihara N, Kintaka K, Yokoyama Y, Ozaki T. Time-Dependent Increase in Medial Meniscus Extrusion Predicts the Need for Meniscal Repair in Patients with Partial Medial Meniscus Posterior Root Tears: A Case-Control Study. Indian J Orthop 2023; 57:1633-1639. [PMID: 37766949 PMCID: PMC10519898 DOI: 10.1007/s43465-023-00987-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023]
Abstract
Purpose This study aimed to compare medial meniscus extrusion (MME) in patients with partial medial meniscus posterior root tears (MMPRTs) through magnetic resonance imaging (MRI) conducted at two-time points and to determine whether patient characteristics or MME measurements differ in patients who respond to nonoperative treatment compared with those who require surgical treatment. Methods Thirty-seven patients with partial MMPRTs underwent two MRI scans during nonoperative management or before pull-out repair. Among these, 17 patients received nonoperative management, and 20 underwent pull-out repair. Partial MMPRTs were diagnosed based on the MRI findings. MME measurements were performed on both MRI scans. Statistical and receiver operating curve (ROC) analyses were performed. Results The duration between the two MRI scans was significantly shorter in the pull-out repair group than in the nonoperative management group. The increase in MME (ΔMME) on MRI scans was significantly greater in the pull-out repair group than in the nonoperative management group. Linear regression analysis revealed a weak correlation between the MRI interval and ΔMME in the nonoperative management group and a moderate correlation in the pull-out repair group. In the ROC construction, the cut-off value for ΔMME that requires surgical intervention was 0.41 mm, with a sensitivity and specificity of 85.0% and 52.9%, respectively. Conclusion Patients with partial MMPRTs requiring surgical treatment had greater MME progression in a shorter time and a time-dependent increase in MME. Therefore, a ΔMME of ≥ 0.41 mm may be useful in deciding surgical intervention based on MRI retests. Level of evidence III.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Haowei Xue
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
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Kawada K, Furumatsu T, Tamura M, Xue H, Higashihara N, Kintaka K, Yokoyama Y, Ozaki T. Medial joint space narrowing progresses after pullout repair of medial meniscus posterior root tear. Int Orthop 2023; 47:2401-2407. [PMID: 36715713 PMCID: PMC10522731 DOI: 10.1007/s00264-023-05701-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 01/13/2023] [Indexed: 01/31/2023]
Abstract
PURPOSE The extent to which arthropathic changes progress after medial meniscus posterior root tear (MMPRT) repair remains controversial. This retrospective study assessed medial joint space (MJS) narrowing progression after pullout repair for MMPRT and identified the correlating factors. METHODS We included 56 patients who underwent pullout repair for MMPRT. The MJS of the bilateral knees was assessed with radiography using the fixed-flexion view. A second-look arthroscopy was performed one year post-operatively for all patients. The baseline characteristics, clinical scores, Kellgren-Lawrence (KL) grade, and medial meniscus extrusion (MME) were identified. Statistical comparisons and correlation analyses were conducted. RESULTS The MJS narrowing width was significantly larger in MMPRT knees than in contralateral knees (0.51 ± 0.85 mm vs. 0.09 ± 0.49 mm, p < 0.001). KL grade progression was observed in 23.2% (13/56) of patients. There was a significant difference between pre- and post-operative MME values, indicating MME progression (p < 0.001). Each clinical score showed significant improvement one year post-operatively (p < 0.001). Positive correlations were found between MJS narrowing and pre-operative MJS (coefficient = 0.510, p < 0.001), rate of change in MJS (coefficient = 0.929, p < 0.001), and increase in MME (ΔMME) (coefficient = 0.506, p < 0.001). CONCLUSION Knees that underwent pullout repair for MMPRT showed progression of MJS narrowing by 0.51 mm at one year post-operatively, although clinical scores markedly improved. Correlating factors for MJS narrowing were pre-operative MJS, rate of change in MJS, and ΔMME. Preventing MME progression is essential for preventing arthropathic changes.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan.
- Present address: Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Haowei Xue
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
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Kawada K, Furumatsu T, Fukuba M, Tamura M, Higashihara N, Okazaki Y, Yokoyama Y, Katayama Y, Hamada M, Ozaki T. Increased quadriceps muscle strength after medial meniscus posterior root repair is associated with decreased medial meniscus extrusion progression. BMC Musculoskelet Disord 2023; 24:727. [PMID: 37700279 PMCID: PMC10496236 DOI: 10.1186/s12891-023-06858-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 09/06/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND This study aimed to assess quadriceps muscle strength after medial meniscus (MM) posterior root repair and determine its relationship with clinical scores and MM extrusion (MME). METHODS Thirty patients who underwent pullout repair for MM posterior root tear and were evaluated for quadriceps muscle strength preoperatively and at 1 year postoperatively were included in this study. Quadriceps muscle strength was measured using the Locomo Scan-II instrument (ALCARE, Tokyo, Japan). MME and clinical scores (i.e., Knee Injury and Osteoarthritis Outcome Score [KOOS], International Knee Documentation Committee score, Lysholm score, Tegner score, and visual analog scale pain score) were evaluated preoperatively and at 1 year postoperatively, and second-look arthroscopy was performed at 1 year postoperatively. Wilcoxon's signed-rank test was used to compare each measure pre- and postoperatively. Pearson's correlation coefficient was used to assess the correlation with quadriceps muscle strength values. Multiple regression analysis was performed to identify factors associated with the change in MME (ΔMME). RESULTS Second-look arthroscopy confirmed continuity of the posterior root in all patients. The quadriceps muscle strength measured at 1 year postoperatively (355.1 ± 116.2 N) indicated significant improvement relative to the quadriceps muscle strength measured preoperatively (271.9 ± 97.4 N, p < 0.001). The MME at 1 year postoperatively (4.59 ± 1.24 mm) had progressed significantly relative to the MME preoperatively (3.63 ± 1.01 mm, p < 0.001). The clinical scores at 1 year postoperatively were improved significantly relative to the scores preoperatively (p < 0.001). The postoperative quadriceps muscle strength was correlated with ΔMME (correlation coefficient = -0.398, p = 0.030), and the change in quadriceps muscle strength was correlated with the KOOS-Quality of Life (correlation coefficient = 0.430, p = 0.018). Multiple regression analysis showed that the postoperative quadriceps muscle strength had a significant effect on ΔMME even when the body mass index and time from injury to surgery were included. CONCLUSIONS After MM posterior root repair, patients with greater quadriceps muscle strength showed less MME progression. In addition, patients with greater improvement in quadriceps muscle strength had better clinical scores; therefore, continued rehabilitation aimed at improving quadriceps muscle strength after MM posterior root repair is recommended. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan.
| | - Mikao Fukuba
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Yuki Okazaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Yoshimi Katayama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Masanori Hamada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
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22
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Li YX, Zhang Y, Ip JCH, Liu J, Chen C, Little CTS, Yokoyama Y, Yasuhara M, Qiu JW. Phylogenetic context of a deep-sea clam (Bivalvia: Vesicomyidae) revealed by DNA from 1 500-year-old shells. Zool Res 2023; 44:353-356. [PMID: 36866638 PMCID: PMC10083220 DOI: 10.24272/j.issn.2095-8137.2022.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Affiliation(s)
- Yi-Xuan Li
- Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, Guangdong 511458, China
| | - Yanjie Zhang
- School of Life Sciences, Hainan University, Haikou, Hainan 570228, China
| | - Jack Chi-Ho Ip
- Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China
| | - Jing Liu
- Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong 266071, China
| | - Chong Chen
- X-STAR, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Crispin T S Little
- School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK.,Life Sciences Department, Natural History Museum, London SW7 5BD, UK
| | - Yusuke Yokoyama
- Department of Earth and Planetary Science, University of Tokyo, Hongo, 113-0033, Japan
| | - Moriaki Yasuhara
- School of Biological Sciences, Area of Ecology and Biodiversity, Swire Institute of Marine Science, Institute for Climate and Carbon Neutrality, and Musketeers Foundation Institute of Data Science, University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong SAR, China
| | - Jian-Wen Qiu
- Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, Guangdong 511458, China. E-mail:
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Kubota K, Tanabe R, Ikehara M, Kozaka Y, Seike K, Miyairi Y, Yokoyama Y. Dataset for the establishment of an age model of marine sediment core KH19-6 Leg.4 PC10/MC14 collected from the Agulhas Ridge in the South Atlantic Ocean. Data Brief 2023; 46:108797. [DOI: 10.1016/j.dib.2022.108797] [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] [Received: 10/26/2022] [Revised: 11/24/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
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Kawada K, Furumatsu T, Tamura M, Xue H, Higashihara N, Kintaka K, Yokoyama Y, Ozaki T. Effectivity of the Outside-In Pie-Crusting Technique and an All-Inside Meniscal Repair Device in the Repair of Ramp Lesions. Arthrosc Tech 2023; 12:e273-e278. [PMID: 36879867 PMCID: PMC9984773 DOI: 10.1016/j.eats.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/02/2022] [Indexed: 01/20/2023] Open
Abstract
Ramp lesions are characteristic medial meniscus injuries seen in anterior cruciate ligament-injured knees. Anterior cruciate ligament injuries combined with ramp lesions increase the amount of anterior tibial translation and tibial external rotation. Therefore, the diagnosis and treatment of ramp lesions have received increasing attention. However, ramp lesions can be difficult to diagnose on preoperative magnetic resonance imaging. Additionally, ramp lesions are difficult to observe and treat intraoperatively in the posteromedial compartment. Although good results have been reported with the use of a suture hook through the posteromedial portal in the treatment of ramp lesions, the complexity and difficulty of the technique are further problems. The outside-in pie-crusting technique is a simple procedure that can enlarge the medial compartment and facilitate the observation and repair of ramp lesions. After this technique, ramp lesions can be properly sutured, using an all-inside meniscal repair device, without damaging the surrounding cartilage. A combination of the outside-in pie-crusting technique and an all-inside meniscal repair device (with only anterior portals) is effective in the repair of ramp lesions. This Technical Note aims to report in detail the flow of a series of techniques, including our diagnostic and therapeutic methods.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Haowei Xue
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
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Kitago M, Seino S, Shinkai S, Nofuji Y, Yokoyama Y, Toshiki H, Abe T, Taniguchi Y, Amano H, Murayama H, Kitamura A, Akishita M, Fujiwara Y. Cross-Sectional and Longitudinal Associations of Creatinine-to-Cystatin C Ratio with Sarcopenia Parameters in Older Adults. J Nutr Health Aging 2023; 27:946-952. [PMID: 37997714 DOI: 10.1007/s12603-023-2029-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 08/04/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVES Accumulating evidence from cross-sectional studies suggests that the serum creatinine-to-cystatin C ratio (CCR) may be a useful biomarker for sarcopenia. This study aimed to assess the cross-sectional and longitudinal associations of CCR with sarcopenia and its parameters in community-dwelling older adults. DESIGN Cross-sectional and longitudinal study. SETTING AND PARTICIPANTS This 6-year prospective cohort study included the repeated measurement data from 1,253 Japanese residents (662 males and 591 females) aged ≥65 years who underwent medical checkups in Kusatsu and Hatoyama, Japan. A total of 4,421 observations were collected. MEASUREMENTS The CCR was grouped into quartiles by sex (Q1-Q4) using Q4 as the reference category. Sarcopenia was defined according to the Asian Working Group for Sarcopenia 2019 algorithm. Skeletal muscle mass index (SMI) measured using segmental multifrequency bioelectrical impedance analysis, handgrip strength (HGS), usual gait speed (UGS), and maximal gait speed (MGS) were measured repeatedly as sarcopenia parameters. The association of the CCR with changes in sarcopenia, SMI, HGS, UGS, and MGS during the 6-year period were analyzed using a generalized linear mixed-effects model. RESULTS The prevalence of sarcopenia at baseline was 13.1% (11.9% in males and 14.5% in females). In a cross-sectional analysis, the CCR quartile was inversely associated with sarcopenia and was positively associated with SMI, HGS, and MGS (P for trend < 0.001). In a longitudinal analysis during the 6 years, a significant increase in sarcopenia in Q2 (B = 1.1% point/year; P = 0.026 for group-by-time interaction) and significant declines in SMI (B = -0.01 kg/m2/year; P = 0.044 for group-by-time interaction) and MGS (B = -0.008 m/sec/year; P = 0.041 for group-by-time interaction) in Q1 were observed compared with Q4. However, the dose-response relationship was significant only for MGS (P = 0.033 for trend). No significant group-by-time interaction was observed for HGS. CCR was not significantly associated with UGS either cross-sectionally or longitudinally. CONCLUSIONS CCR is a useful biomarker regarding the status of sarcopenia. It may be used for sarcopenia screening even in older adults whose physical function is difficult to assess. However, further longitudinal studies are needed to determine whether CCR can be a predictor of future sarcopenia.
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Affiliation(s)
- M Kitago
- Yoshinori Fujiwara, MD, PhD, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakae, Itabashi, Tokyo, 173-0015, Japan, Phone: +81-3-3964-3241, E-mail:
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Ohshima S, Ueki Y, Yokoyama Y, Takahashi T, Shodo R, Yamazaki K, Okabe R, Matsuyama H, Togashi T, Takatsuka S, Takenouchi T, Horii A. Treatment outcomes of mucosal melanoma of head and neck: Efficacy of immune checkpoint inhibitors for advanced disease. Front Surg 2022; 9:1032626. [PMID: 37082097 PMCID: PMC10112385 DOI: 10.3389/fsurg.2022.1032626] [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] [Received: 08/31/2022] [Accepted: 12/12/2022] [Indexed: 12/27/2022] Open
Abstract
BackgroundHead and neck mucosal melanoma (HNMM) is a rare and aggressive subtype of melanoma. HNMM often develops as a recurrent or metastatic disease, and its prognosis is worse than that of cutaneous melanoma. Recent large-scale clinical studies have reported favorable outcomes with immune checkpoint inhibitors (ICIs) for melanoma. However, these clinical trials included only a small number of HNMM cases. This study aimed to estimate treatment outcomes and prognostic predictors of ICIs for advanced HNMM.MethodsCases of advanced HNMM, defined as unresectable or metastatic HNMM at the initial diagnosis (five patients) or development of recurrent/metastatic HNMM after initial treatment (27 patients), were included in this study. Survival analysis and a search for prognostic factors were performed for these 32 patients. Furthermore, the detailed clinical course of patients who received ICI treatment was investigated.ResultsThe median overall survival (OS) of 32 patients with advanced HNMM was 25.3 months. The estimated 1-, 3-, and 5-year OS rates were 68.4%, 42.8%, and 34.3%, respectively. Fourteen patients (43.7%) received ICIs, whereas 18 (56.3%) did not. Univariate analysis showed that ICI treatment was the only factor associated with a better 1-year OS. Patients who received ICI treatment had significantly longer OS (median OS: not reached, 1-year OS: 85.7%) than those who did not (median OS: 11.3 months, 1-year OS: 54.5%). The overall response and disease control rates of patients who received ICI treatment were 50% and 64.3%, respectively. Patients who achieved complete response (CR) or partial response (PR) to ICI treatment survived significantly longer (1-year OS: 100%) than those who did not (1-year OS: 71.4%). Among the five patients who discontinued ICI treatment due to severe immune-related adverse events (irAEs), four did not receive salvage treatments but showed durable treatment effects and survived for 9.8–54.2 months at the end of the follow-up period.ConclusionsICI treatment achieved a favorable OS for advanced HNMM. CR/PR to ICI treatment and discontinuation owing to severe irAEs were favorable predictors of OS.
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Affiliation(s)
- Shusuke Ohshima
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yushi Ueki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- Correspondence: Yushi Ueki
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryusuke Shodo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Keisuke Yamazaki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryuichi Okabe
- Division of Otorhinolaryngology, Nagaoka Red Cross Hospital, Niigata, Japan
| | - Hiroshi Matsuyama
- Division of Otorhinolaryngology, Niigata City General Hospital, Niigata, Japan
| | - Takafumi Togashi
- Division of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Sumiko Takatsuka
- Division of Dermatology, Niigata Cancer Center Hospital, Niigata, Japan
| | | | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Hiranaka T, Furumatsu T, Yokoyama Y, Kintaka K, Higashihara N, Tamura M, Kawada K, Xue H, Hamada M, Ozaki T. The clinical and radiographic outcomes of type 2 medial meniscus posterior root tears following transtibial pullout repair. Knee Surg Sports Traumatol Arthrosc 2022; 31:2323-2330. [PMID: 36566386 DOI: 10.1007/s00167-022-07293-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 12/13/2022] [Indexed: 12/26/2022]
Abstract
PURPOSE The aim of this study was to compare the clinical outcomes of different subtypes of type 2 medial meniscus posterior root tears following transtibial pullout repair. METHODS In total, 147 patients (mean age: 66.2 ± 8.3 years) who were diagnosed with type 2 medial meniscus posterior root tears and underwent transtibial pullout repair were included. Patients were divided into 2A (n = 31), 2B (n = 90), and 2C (n = 26) groups according to tear type. Clinical outcomes were assessed pre-operatively and at second-look arthroscopy using the Knee injury and Osteoarthritis Outcome Score. The meniscal healing status was evaluated at second-look arthroscopy. Medial meniscus extrusion was calculated using magnetic resonance imaging pre-operatively and at second-look arthroscopy. RESULTS No significant differences in pre-operative or post-operative clinical scores were observed between each subtype, although clinical scores improved post-operatively for each subtype. Significant differences were noted in the anteroposterior width of the bridging tissues at second-look arthroscopy (2A, 7.1 ± 1.2; 2B, 6.2 ± 1.7; and 2C, 6.2 ± 1.7 mm; p = 0.045); type 2A tears were the widest. There was a significant difference in post-operative medial meniscus extrusion (2A, 3.2 ± 0.9; 2B, 4.0 ± 1.2; and 2C, 4.0 ± 1.4 mm; p = 0.004) and its progression (2A, 0.7 ± 0.6; 2B, 1.2 ± 0.8; and 2C, 1.2 ± 0.8 mm; p = 0.008), and type 2A tears were the shortest. CONCLUSION Although there was no significant difference in the post-operative clinical scores among different type 2 tears in the short term, type 2A tears showed better healing and medial meniscus extrusion progression prevention, thus indicating the usefulness of classifying tear type in estimating post-operative outcomes. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Takaaki Hiranaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan.,Department of Orthopaedic Surgery, Ako Central Hospital, 52‑6 Sohmon‑cho, Ako, Hyogo, 678‑0241, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan.
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Haowei Xue
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Masanori Hamada
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
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Otaki K, Takahashi T, Tanaka R, Saijo K, Omata J, Yokoyama Y, Shodo R, Ueki Y, Yamazaki K, Ota H, Togashi T, Takahashi N, Okabe R, Matsuyama H, Horii A. Chemoradiotherapy with 3-weekly CDDP 80 mg/m 2 for head and neck squamous cell carcinoma: 5-year survival data from a phase 2 study. Front Surg 2022; 9:1035349. [PMID: 36589621 PMCID: PMC9800777 DOI: 10.3389/fsurg.2022.1035349] [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: 09/02/2022] [Accepted: 11/25/2022] [Indexed: 12/23/2022] Open
Abstract
Objective The global standard for chemoradiation therapy (CCRT) for head and neck squamous cell carcinoma is cisplatin 100 mg/m2 administered once every three weeks, although cisplatin 80 mg/m2 is also widely used as an alternative treatment to reduce adverse events in Japan. We aimed to assess the long-term survival outcomes and late adverse events associated with CCRT with a 3-weekly cisplatin dose of 80 mg/m2. Methods A phase 2 study on CCRT with a 3-weekly cisplatin dose of 80 mg/m2 was performed in 47 patients between April 2015 and December 2016 at four centers in Japan. Survival outcomes and late adverse events at 5 years after this phase 2 trial were investigated. Results The median follow-up period was 61 months. The 5-year progression-free survival/overall survival of all 47 patients was 66.0%/76.6%, while that of patients with stage III, IV disease (UICC) was 65.6%/71.9%. Seventeen patients (36%) experienced dysphagia as a late adverse event. Univariate and multivariate analyses revealed a significant association between acute mucositis/low body mass index (BMI) during CCRT and late dysphagia. Conclusion The survival outcomes of CCRT with a 3-weekly cisplatin dose of 80 mg/m2 may be comparable to the previously reported dose of 100 mg/m2. Acute mucositis and low BMI at CCRT were risk factors for late dysphagia, indicating the importance of managing these conditions during CCRT to prevent late adverse events. Caution and care for acute mucositis and swallowing training in patients with low BMI may be important for preventing late-stage dysphagia.
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Affiliation(s)
- Kohei Otaki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan,Correspondence: Takeshi Takahashi
| | - Ryoko Tanaka
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kohei Saijo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Jo Omata
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryusuke Shodo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yushi Ueki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Keisuke Yamazaki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hisayuki Ota
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Takafumi Togashi
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Nao Takahashi
- Department of Otorhinolaryngology, Nagaoka Red Cross Hospital, Niigata, Japan
| | - Ryuichi Okabe
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hiroshi Matsuyama
- Department of Otorhinolaryngology, Niigata City General Hospital, Niigata, Japan
| | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Matsuyama H, Ueki Y, Okamoto I, Nagao T, Honda K, Yamazaki K, Okabe R, Togashi T, Shodo R, Ota H, Takahashi T, Omata J, Yokoyama Y, Saijo K, Tanaka R, Tsukahara K, Kitahara T, Uemura H, Yoshimoto S, Matsumoto F, Okami K, Sakai A, Takano K, Kondo A, Inohara H, Eguchi H, Oridate N, Tanabe T, Nakamizo M, Yokoshima K, Miura K, Kitani Y, Horii A. Head and neck small-cell carcinoma: A multicenter study of 39 cases from 10 institutions. Front Surg 2022; 9:1049116. [DOI: 10.3389/fsurg.2022.1049116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 10/05/2022] [Indexed: 11/15/2022] Open
Abstract
ObjectiveBasal information of head and neck small-cell carcinoma (HNSmCC) including epidemiology, primary site, treatment, and prognosis remains sparse due to its rarity. We report here a multicenter retrospective study on the diagnosis, treatment, and outcomes of patients with HNSmCC.Materials and methodsThis study involved 47 patients with HNSmCC from 10 participating institutions. Eight patients were excluded for whom no pathological specimens were available (n = 2) and for discrepant central pathological judgements (n = 6). The remaining 39 patients were processed for data analysis.ResultsAs pretreatment examinations, computed tomography (CT) was performed for the brain (n = 8), neck (n = 39), and chest (n = 32), magnetic resonance imaging (MRI) for the brain (n = 4) and neck (n = 23), positron emission tomography-CT (PET-CT) in 23 patients, bone scintigraphy in 4, neck ultrasonography in 9, and tumor markers in 25. Primary sites were oral cavity (n = 1), nasal cavity/paranasal sinuses (n = 16), nasopharynx (n = 2), oropharynx (n = 4), hypopharynx (n = 2), larynx (n = 6), salivary gland (n = 3), thyroid (n = 2), and others (n = 3). Stages were II/III/IV-A/IV-B/IV-C/Not determined = 3/5/16/6/5/4; stage IV comprised 69%. No patient had brain metastases. First-line treatments were divided into 3 groups: the chemoradiotherapy (CRT) group (n = 27), non-CRT group (n = 8), and best supportive care group (n = 4). The CRT group included concurrent CRT (CCRT) (n = 17), chemotherapy (Chemo) followed by radiotherapy (RT) (n = 5), and surgery (Surg) followed by CCRT (n = 5). The non-CRT group included Surg followed by RT (n = 2), Surg followed by Chemo (n = 1), RT alone (n = 2), and Chemo alone (n = 3). The 1-year/2-year overall survival (OS) of all 39 patients was 65.3/53.3%. The 1-year OS of the CRT group (77.6%) was significantly better compared with the non-CRT group (31.3%). There were no significant differences in adverse events between the CCRT group (n = 22) and the Chemo without concurrent RT group (n = 9).ConclusionNeck and chest CT, neck MRI, and PET-CT would be necessary and sufficient examinations in the diagnostic set up for HNSmCC. CCRT may be recommended as the first-line treatment. The 1-year/2-year OS was 65.3%/53.3%. This study would provide basal data for a proposing the diagnostic and treatment algorithms for HNSmCC.
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Yoshikay-Benitez DA, Yokoyama Y, Ohira K, Fujita K, Tomiie A, Kijidani Y, Shigeto J, Tsutsumi Y. Populus alba cationic cell-wall-bound peroxidase (CWPO-C) regulates the plant growth and affects auxin concentration in Arabidopsis thaliana. Physiol Mol Biol Plants 2022; 28:1671-1680. [PMID: 36387972 PMCID: PMC9636347 DOI: 10.1007/s12298-022-01241-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 09/10/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
UNLABELLED The poplar cationic cell-wall-bound peroxidase (CWPO-C) mediates the oxidative polymerization of lignin precursors, especially sinapyl alcohols, and high molecular weight compounds that cannot be oxidized by other plant peroxidases, including horseradish peroxidase C. Therefore, CWPO-C is believed to be a lignification-specific peroxidase, but direct evidence of its function is lacking. Thus, the CWPO-C expression pattern in Arabidopsis thaliana (Arabidopsis) was determined using the β-glucuronidase gene as a reporter. Our data indicated that CWPO-C was expressed in young organs, including the meristem, leaf, root, flower, and young xylem in the upper part of the stem. Compared with the wild-type control, transgenic Arabidopsis plants overexpressing CWPO-C had shorter stems. Approximately 60% of the plants in the transgenic line with the highest CWPO-C content had curled stems. These results indicate that CWPO-C plays a role in cell elongation. When plants were placed horizontally, induced CWPO-C expression was detected in the curved part of the stem during the gravitropic response. The stem curvature associated with gravitropism is controlled by auxin localization. The time needed for Arabidopsis plants overexpressing CWPO-C placed horizontally to bend by 90° was almost double the time required for the similarly treated wild-type controls. Moreover, the auxin content was significantly lower in the CWPO-C-overexpressing plants than in the wild-type plants. These results strongly suggest that CWPO-C has pleiotropic effects on plant growth and indole-3-acetic acid (IAA) accumulation. These effects may be mediated by altered IAA concentration due to oxidation. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-022-01241-0.
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Affiliation(s)
- Diego Alonso Yoshikay-Benitez
- Department of Agro-environmental Sciences, Graduate School of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
| | - Yusuke Yokoyama
- Department of Agro-environmental Sciences, Graduate School of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
| | - Kaori Ohira
- Department of Agro-environmental Sciences, Graduate School of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
| | - Koki Fujita
- Faculty of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
| | - Azusa Tomiie
- Division of Forest and Environmental Science, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen Kibana-dai Nishi, Miyazaki, 889-2192 Japan
| | - Yoshio Kijidani
- Division of Forest and Environmental Science, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen Kibana-dai Nishi, Miyazaki, 889-2192 Japan
| | - Jun Shigeto
- Faculty of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
- Office of Research and Academia Government Community Collaboration, Hiroshima University, 1-3-2 Kagamiyama, Higashihiroshima, Hiroshima 739-8511 Japan
| | - Yuji Tsutsumi
- Faculty of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
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Duteil T, Bourillot R, Braissant O, Grégoire B, Leloup M, Portier E, Brigaud B, Féniès H, Svahn I, Henry A, Yokoyama Y, Visscher PT. Preservation of exopolymeric substances in estuarine sediments. Front Microbiol 2022; 13:921154. [PMID: 36060749 PMCID: PMC9434125 DOI: 10.3389/fmicb.2022.921154] [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: 04/15/2022] [Accepted: 07/29/2022] [Indexed: 11/23/2022] Open
Abstract
The surface of intertidal estuarine sediments is covered with diatom biofilms excreting exopolymeric substances (EPSs) through photosynthesis. These EPSs are highly reactive and increase sediment cohesiveness notably through organo-mineral interactions. In most sedimentary environments, EPSs are partly to fully degraded by heterotrophic bacteria in the uppermost millimeters of the sediment and so they are thought to be virtually absent deeper in the sedimentary column. Here, we present the first evidence of the preservation of EPSs and EPS-mineral aggregates in a 6-m-long sedimentary core obtained from an estuarine point bar in the Gironde Estuary. EPSs were extracted from 18 depth intervals along the core, and their physicochemical properties were characterized by (i) wet chemical assays to measure the concentrations of polysaccharides and proteins, and EPS deprotonation of functional groups, (ii) acid–base titrations, and (iii) Fourier transform infrared spectroscopy. EPS-sediment complexes were also imaged using cryo-scanning electron microscopy. EPS results were analyzed in the context of sediment properties including facies, grain size, and total organic carbon, and of metabolic and enzymatic activities. Our results showed a predictable decrease in EPS concentrations (proteins and polysaccharides) and reactivity from the surface biofilm to a depth of 0.5 m, possibly linked to heterotrophic degradation. Concentrations remained relatively low down to ca. 4.3 m deep. Surprisingly, at that depth EPSs abundance was comparable to the surface and showed a downward decrease to 6.08 m. cryo-scanning electron microscopy (Cryo-SEM) showed that the EPS complexes with sediment were abundant at all studied depth and potentially protected EPSs from degradation. EPS composition did not change substantially from the surface to the bottom of the core. EPS concentrations and acidity were anti-correlated with metabolic activity, but showed no statistical correlation with grain size, TOC, depth or enzymatic activity. Maximum EPS concentrations were found at the top of tide-dominated sedimentary sequences, and very low concentrations were found in river flood-dominated sedimentary sequences. Based on this observation, we propose a scenario where biofilm development and EPS production are maximal when (i) the point bar and the intertidal areas were the most extensive, i.e., tide-dominated sequences and (ii) the tide-dominated deposit were succeeded by rapid burial beneath sediments, potentially decreasing the probability of encounter between bacterial cells and EPSs.
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Affiliation(s)
- Thibault Duteil
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, Pessac, France
- *Correspondence: Thibault Duteil,
| | | | - Olivier Braissant
- Department Biomedical Engineering (DBE), Center for Biomechanics and Biocalorimetry, University of Basel, Allschwil, Switzerland
| | - Brian Grégoire
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Centre National de la Recherche Scientifique (CNRS), Université de Poitiers, Poitiers, France
| | - Maud Leloup
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Centre National de la Recherche Scientifique (CNRS), Université de Poitiers, Poitiers, France
| | | | | | - Hugues Féniès
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, Pessac, France
| | - Isabelle Svahn
- Bordeaux Imaging Center (BIC), CNRS, Université de Bordeaux, Bordeaux, France
| | - Adrien Henry
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, Pessac, France
| | - Yusuke Yokoyama
- Department of Earth and Planetary Sciences, Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwanoha, Chiba, Japan
| | - Pieter T. Visscher
- Department of Marine Sciences and Geosciences, University of Connecticut, Groton, CT, United States
- CNRS, Biogéosciences, Université de Bourgogne Franche-Comté, Dijon, France
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Hane Y, Ushikubo T, Yokoyama Y, Miyairi Y, Kimura S. Natal origin of Pacific bluefin tuna Thunnus orientalis determined by SIMS oxygen isotope analysis of otoliths. PLoS One 2022; 17:e0272850. [PMID: 35947611 PMCID: PMC9365150 DOI: 10.1371/journal.pone.0272850] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 07/27/2022] [Indexed: 11/19/2022] Open
Abstract
Accurate understanding of changing population dynamics associated with climate change is critical for managing highly migratory fish species. However, long-term data on population dynamics and the resulting recruitment variability is still lacking for many species, making it difficult to predict and integrate the effects of ocean warming into management schemes. In this study, high-resolution stable oxygen isotope (δ18O) analysis was performed on the otoliths of adult Pacific bluefin tuna Thunnus orientalis using secondary ion mass spectrometry (SIMS) to determine the natal origin of an individual fish. The core δ18Ootolith corresponding to the larval stage greatly varied among the individuals, indicating that the larvae experienced a wide range of thermal environments. The non-hierarchical cluster analysis performed on the core δ18Ootolith grouped fish into those with higher δ18Ootolith (lower temperature) and those with lower δ18Ootolith (higher temperature), most likely representing relative temperature difference experienced between fish born in the Sea of Japan and in the Nansei Islands area. The Nansei Islands area cluster showed more variability in the early otolith growth indicating a longer spawning season, which is consistent with the observed longer spawning duration in this area. The absolute temperature estimates based on the SIMS-measured core δ18Ootolith were significantly higher than those expected from sea surface temperature data, suggesting the effects of matrix-related bias on the temperature offsets. The relative temperature difference, however, matched well with the known spawning temperature range of the two spawning grounds. The recruitment contribution from each spawning ground (all year-classes pooled, n = 51) was 45% in the Sea of Japan and 55% in the Nansei Islands area. Overall, this study demonstrated the effectiveness of SIMS δ18Ootolith analysis for investigating the natal origin of fish and its potential application in fish population dynamics studies.
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Affiliation(s)
- Yulina Hane
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
- * E-mail:
| | - Takayuki Ushikubo
- Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Nankoku, Kochi, Japan
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Hongo, Tokyo, Japan
- Organization for Programs on Environmental Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Tokyo, Japan
| | - Yosuke Miyairi
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Shingo Kimura
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
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Portilho-Ramos RDC, Titschack J, Wienberg C, Siccha Rojas MG, Yokoyama Y, Hebbeln D. Major environmental drivers determining life and death of cold-water corals through time. PLoS Biol 2022; 20:e3001628. [PMID: 35587463 PMCID: PMC9119455 DOI: 10.1371/journal.pbio.3001628] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 04/12/2022] [Indexed: 11/24/2022] Open
Abstract
Cold-water corals (CWCs) are the engineers of complex ecosystems forming unique biodiversity hotspots in the deep sea. They are expected to suffer dramatically from future environmental changes in the oceans such as ocean warming, food depletion, deoxygenation, and acidification. However, over the last decades of intense deep-sea research, no extinction event of a CWC ecosystem is documented, leaving quite some uncertainty on their sensitivity to these environmental parameters. Paleoceanographic reconstructions offer the opportunity to align the on- and offsets of CWC proliferation to environmental parameters. Here, we present the synthesis of 6 case studies from the North Atlantic Ocean and the Mediterranean Sea, revealing that food supply controlled by export production and turbulent hydrodynamics at the seabed exerted the strongest impact on coral vitality during the past 20,000 years, whereas locally low oxygen concentrations in the bottom water can act as an additional relevant stressor. The fate of CWCs in a changing ocean will largely depend on how these oceanographic processes will be modulated. Future ocean deoxygenation may be compensated regionally where the food delivery and food quality are optimal.
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Affiliation(s)
| | - Jürgen Titschack
- MARUM–Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
- Senckenberg am Meer, Marine Research Department, Wilhelmshaven, Germany
| | - Claudia Wienberg
- MARUM–Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
| | | | - Yusuke Yokoyama
- Analytical Center for Environmental Science–Atmosphere and Ocean Research Institute, University of Tokyo, Tokyo, Japan
| | - Dierk Hebbeln
- MARUM–Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
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Yokoyama Y, Iioka H, Horii A, Kondo E. Crumbs3 is expressed in oral squamous cell carcinomas and promotes cell migration and proliferation by affecting RhoA activity. Oncol Lett 2022; 23:173. [PMID: 35497937 PMCID: PMC9019858 DOI: 10.3892/ol.2022.13293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/17/2022] [Indexed: 11/23/2022] Open
Abstract
Despite the recent progression of treatments, the 5-year survival rate of patients with oral squamous cell carcinoma (OSCC) is still poor. One of the most critical factors affecting prognosis is tumor metastasis. Developing novel molecular targeted therapies by analyzing the molecular pathway of OSCC metastasis is an urgent issue. The present study aimed to characterize the expression and function of crumbs3 (Crb3) in OSCC cell migration. Immunohistochemistry and immunoblotting revealed that Crb3 was expressed in tissues from patients with OSCC and OSCC cell lines. The motility of OSCC cell lines was decreased by knockdown of Crb3 without affecting proliferation. However, Crb3-knockout (KO) clones exhibited decreases in both cell migration and proliferation. The expression of epithelial-mesenchymal transition markers was not altered in Crb3-KO clones compared with parent cells. A xenograft mouse model of lung metastasis revealed that the metastatic potential of Crb3-KO clones was reduced. As seen with Crb3-KO clones, the motility of OSCC cells was decreased by treatment with inhibitors of RhoA activation. Serum-induced activation of RhoA in OSCC cells was evaluated by comparing the amount of GTP-bound RhoA using affinity matrices, revealing that RhoA activation was decreased in Crb3-KO clones. To the best of our knowledge, the present study was the first to demonstrate that Crb3 was expressed in squamous cell carcinoma tissues and promoted cell migration and proliferation, which was associated with RhoA activation in OSCC cells.
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Affiliation(s)
- Yusuke Yokoyama
- Division of Molecular and Cellular Pathology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951‑8510, Japan
| | - Hidekazu Iioka
- Division of Molecular and Cellular Pathology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951‑8510, Japan
| | - Arata Horii
- Department of Otolaryngology, Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951‑8510, Japan
| | - Eisaku Kondo
- Division of Molecular and Cellular Pathology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951‑8510, Japan
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Hata T, Seino S, Yokoyama Y, Narita M, Nishi M, Hida A, Shinkai S, Kitamura A, Fujiwara Y. Interaction of Eating Status and Dietary Variety on Incident Functional Disability among Older Japanese Adults. J Nutr Health Aging 2022; 26:698-705. [PMID: 35842760 PMCID: PMC9209632 DOI: 10.1007/s12603-022-1817-5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/01/2022] [Indexed: 11/01/2022]
Abstract
OBJECTIVES To examine whether eating status and dietary variety were associated with functional disability during a 5-year follow-up analysis of older adults living in a Japanese metropolitan area. DESIGN A 5-year follow-up study. SETTING Ota City, Tokyo, Japan. PARTICIPANTS A total of 10,308 community-dwelling non-disabled adults aged 65-84 years. MEASUREMENTS Eating status was assessed using a self-reported questionnaire. Dietary variety was assessed using the dietary variety score (DVS). Based on the responses, participants were classified according to eating alone or together and DVS categories (low: 0-3; high: 4-10). Functional disability incidence was prospectively identified using the long-term care insurance system's nationally unified database. Multilevel survival analyses calculated the adjusted hazard ratio (HR) and 95% confidence interval (CI) for incident functional disability. RESULTS During a 5-year follow-up, 1,991 (19.3%) individuals had functional disabilities. Eating status or DVS were not independently associated with incident functional disability. However, interaction terms between eating status and DVS were associated with functional disability; HR (95% CI) for eating together and low DVS was 1.00 (0.90-1.11), eating alone and high DVS was 0.95 (0.77-1.17), and eating alone and low DVS was 1.20 (1.02-1.42), compared to those with eating together and high DVS. CONCLUSION Older adults should avoid eating alone or increase dietary variety to prevent functional disability. This can be ensured by providing an environment of eating together or food provision services for eating a variety of foods in the community.
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Affiliation(s)
- T Hata
- Yoshinori Fujiwara, MD, PhD., Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae, Itabashi City, Tokyo 173-0015, Japan, E-mail: , Phone: +81 (3) 3964-3241 ext. 4257, Fax: +81 (3) 3579-4776
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Sekiguchi M, Sagano N, Kawazoe H, Hiraga Y, Jibiki A, Yokoyama Y, Suzuki S, Nakamura T. Drug repositioning of antipsychotic drugs for cisplatin-induced pica behavior in mice. Pharmazie 2021; 76:484-487. [PMID: 34620275 DOI: 10.1691/ph.2021.1674] [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: 06/13/2023]
Abstract
We aimed to clarify whether various antipsychotics ameliorate cisplatin-induced pica behavior in mice using a drug repositioning approach. Mice were administered cisplatin (12.5 mg/kg, i.p.) with or without olanzapine (1 mg/kg, i.p.), asenapine (4 mg/kg, i.p.), mirtazapine (5 mg/kg, i.p.) or standard three-drug antiemetics (granisetron [0.5 mg/kg, i.p.], fosaprepitant [25 mg/kg, i.p.], and dexamethasone [3 mg/kg, i.p.]). Kaolin, food, and water intake, and spontaneous motor activity on the day before and seven consecutive days after the cisplatin administration were measured using a telemetry system. At the primary endpoint, kaolin intake was significantly higher at day three in the cisplatin group than in the pre-treatment and saline groups ( p < 0.05). Additionally, kaolin intake was not significantly higher in cisplatin with olanzapine, asenapine, and mirtazapine groups for seven days than in the pre-treatment group. At the secondary endpoint, cisplatin decreased the food and water intake, and spontaneous motor activity in a time-dependent manner. Three antipsychotics failed to improve the cisplatin-induced decrease in food and water intake, and spontaneous motor activity. The findings suggest that prophylactic administration of antipsychotics besides olanzapine may improve cisplatin-induced nausea and vomiting in a delayed phase and de-escalate standard 3-drug antiemetics.
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Affiliation(s)
- M Sekiguchi
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - N Sagano
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - H Kawazoe
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan; Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences, Tokyo, Japan;,
| | - Y Hiraga
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - A Jibiki
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Y Yokoyama
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan; Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences, Tokyo, Japan
| | - S Suzuki
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan; Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences, Tokyo, Japan
| | - T Nakamura
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan; Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences, Tokyo, Japan
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Saijo K, Ueki Y, Tanaka R, Yokoyama Y, Omata J, Takahashi T, Ota H, Shodo R, Yamazaki K, Togashi T, Okabe R, Matsuyama H, Honda K, Sato Y, Morita Y, Takahashi K, Horii A. Treatment Outcome of External Auditory Canal Carcinoma: The Utility of Lateral Temporal Bone Resection. Front Surg 2021; 8:708245. [PMID: 34527695 PMCID: PMC8435738 DOI: 10.3389/fsurg.2021.708245] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/06/2021] [Indexed: 11/30/2022] Open
Abstract
We examined the role of lateral temporal bone resection (LTBR) in the treatment of external ear canal (EAC) carcinoma between 2007 and 2018. The estimated 3-year disease-free survival (DFS) and disease-specific survival (DSS) according to the tumor stage and treatments were investigated in 36 patients with EAC squamous cell carcinoma. T stage classification according to the University of Pittsburgh staging system was as follows: 14 patients in T1, four patients in T2, nine patients in T3, and nine patients in T4. The 3-year DFS rate was 77.4% for T1 tumors, 100% for T2, 44.4% for T3 tumors, and 11.1% for T4 tumors (p < 001). The 3-year DSS rate was 100% for T1/T2 tumors, 87.5% for T3 tumors, and 11.1% for T4 tumors (p < 0.01). T1/T2 patients received mostly LTBR. Among nine T3 tumors, five patients (56%) received LTBR combined with preoperative chemotherapy and/or postoperative radiation (RT). Four of them had negative surgical margin and survived with no evidence of disease. The DFS of T3 patients who underwent concurrent chemoradiotherapy and LTBR was 0 and 80%, respectively (p = 0.048). For T1/T2 tumors, surgery achieved an excellent outcome. For T3 tumors, LTBR achieved negative surgical margin and showed good survival when combined with preoperative chemotherapy and/or postoperative RT. In contrast, the prognosis of T3 patients who could not undergo surgery was as poor as that of T4 patients. Therefore, in addition to subtotal temporal bone resection, LTBR-based treatment strategy may be a treatment option for limited cases of T3 patients.
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Affiliation(s)
- Kohei Saijo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.,Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Yushi Ueki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryoko Tanaka
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yusuke Yokoyama
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Jo Omata
- Department of Otolaryngology, Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - Takeshi Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hisayuki Ota
- Department of Otolaryngology, Nagaoka Chuo General Hospital, Nagaoka, Japan
| | - Ryusuke Shodo
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Keisuke Yamazaki
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takafumi Togashi
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Ryuichi Okabe
- Department of Otolaryngology, Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - Hiroshi Matsuyama
- Department of Otolaryngology, Niigata General Hospital, Niigata, Japan
| | - Kohei Honda
- Department of Otolaryngology, Niigata Prefectural Central Hospital, Joetsu, Japan
| | - Yuichiro Sato
- Department of Head and Neck Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Yuka Morita
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kuniyuki Takahashi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Mitsuguchi T, Okabe N, Yokoyama Y, Yoneda M, Shibata Y, Fujita N, Watanabe T, Saito-Kokubu Y. 129I/ 127I and Δ 14C records in a modern coral from Rowley Shoals off northwestern Australia reflect the 20th-century human nuclear activities and ocean/atmosphere circulations. J Environ Radioact 2021; 235-236:106593. [PMID: 34062380 DOI: 10.1016/j.jenvrad.2021.106593] [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] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/13/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
Radionuclides produced by 20th-century human nuclear activities from 1945 (e.g., atmospheric nuclear explosions and nuclear-fuel reprocessing) made significant impacts on earth's surface environments. Long-lived shallow-water corals living in tropical/subtropical seas incorporate the anthropogenically-produced radionuclides, including 129I and 14C, into their skeletons, and provide time series records of the impacts of nuclear activities. Here, we present 129I/127I and Δ14C time series records of an annually-banded modern coral skeleton from Rowley Shoals, off the northwestern coast of Australia, in the far eastern Indian Ocean. The 129I/127I and Δ14C records, covering the period 1930s-1990s, exhibit distinct increases caused by the nuclear activities, and their increasing profiles are clearly different from each other. The first distinct 129I/127I increase occurs from 1955 to 1959, followed by a decrease in 1960-1963. The increase is probably due to US atmospheric nuclear explosions in Bikini and Eniwetok Atolls in 1954, 1956 and 1958. The 129I produced in those nuclear tests would be transported by the North Equatorial Current, a portion of which passes through the Indonesian Throughflow and then reaches Rowley Shoals. This initial increase from 1955 is, however, absent in the Δ14C record, which shows a distinct increase from 1959 and its peak around the mid-1970s, followed by a gradual decrease. This absence and the 4-year-delayed Δ14C increase are likely due to dilution of explosion-produced 14C with natural carbon (by seawater mixing and air-sea gas exchange) being much more intense than that of explosion-produced 129I with natural iodine (by the same processes), suggesting that the 129I/127I ratio is a more conservative anthropogenic tracer in surface ocean waters, as compared to Δ14C. The second 129I/127I increase is contemporaneous with a rapid Δ14C increase during 1964-1967, followed by a rapid 129I/127I decrease in 1968-1969; the increases can be ascribed to very large atmospheric nuclear explosions conducted in the former Soviet Union in 1961-1962. The third 129I/127I increase appears between 1969/1970 and 1992, which can be attributed to airborne 129I released from nuclear-fuel reprocessing facilities in Europe, the former Soviet Union and the US. The coral 129I/127I and Δ14C time series records, combined with previous studies, enhance our understanding of the behavior of anthropogenic 129I and 14C in the global ocean and atmosphere.
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Affiliation(s)
- Takehiro Mitsuguchi
- Tono Geoscience Center, Japan Atomic Energy Agency, Izumi-cho, Toki, Gifu, 509-5102, Japan.
| | - Nobuaki Okabe
- National Institute for Environmental Studies, Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
| | - Minoru Yoneda
- The University Museum, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yasuyuki Shibata
- National Institute for Environmental Studies, Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Natsuko Fujita
- Tono Geoscience Center, Japan Atomic Energy Agency, Izumi-cho, Toki, Gifu, 509-5102, Japan
| | - Takahiro Watanabe
- Tono Geoscience Center, Japan Atomic Energy Agency, Izumi-cho, Toki, Gifu, 509-5102, Japan
| | - Yoko Saito-Kokubu
- Tono Geoscience Center, Japan Atomic Energy Agency, Izumi-cho, Toki, Gifu, 509-5102, Japan
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Sproson AD, Aze T, Behrens B, Yokoyama Y. Initial measurement of beryllium-9 using high-resolution inductively coupled plasma mass spectrometry allows for more precise applications of the beryllium isotope system within the Earth Sciences. Rapid Commun Mass Spectrom 2021; 35:e9059. [PMID: 33502050 DOI: 10.1002/rcm.9059] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/26/2021] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
RATIONALE Precise and accurate determination of the ratio of the cosmogenic nuclide 10 Be to the stable isotope 9 Be (10 Be/9 Be) is needed across multiple fields of research within the Earth Sciences. Current techniques used to measure the 9 Be content of geological materials generally require a large amount of sample or solution aliquot and present a large range of analytical precisions. METHODS A range of geological reference materials underwent whole-rock dissolution and "strong" (0.04 M NH2 OH.HCl in 25% acetic acid) and "weak" (0.02 M NH2 OH.HCl in 10% acetic acid) leaching to represent a range of potential applications within the geosciences. After treatment, the 9 Be and major element (Na, Ca, Mg, Fe, Mn, Al and Ti) content of sample solutions were determined by high-resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) using a Thermo® ELEMENT XR instrument. RESULTS The 9 Be concentration of whole-rock and leaching solutions displayed a wide range of values within each geological reference material, generally following a uniform relationship implying a potential kinetic control on NH2 OH leaching, as suggested by major element profiles. A precision of 0.1 to 1.4% is achieved independent of sample size or leaching strength. CONCLUSIONS Initial results suggest that the use of HR-ICP-MS improves the precision of 9 Be analysis for a range of geological reference materials. A high precision is maintained despite reducing the sample size or strength of leaching solution. This has implications for the use of the Be isotope system within the Earth Sciences by reducing the propagated uncertainty of 10 Be/9 Be ratios or the mass of sample or 9 Be aliquot used.
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Affiliation(s)
- Adam D Sproson
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
| | - Takahiro Aze
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
| | - Bethany Behrens
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
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Kuwahara Y, Yasukawa K, Fujinaga K, Nozaki T, Ohta J, Sato H, Kimura JI, Nakamura K, Yokoyama Y, Kato Y. Rapid coupling between solid earth and ice volume during the Quaternary. Sci Rep 2021; 11:5695. [PMID: 33707499 PMCID: PMC7970951 DOI: 10.1038/s41598-021-84448-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 02/15/2021] [Indexed: 01/31/2023] Open
Abstract
The solid earth plays a major role in controlling Earth's surface climate. Volcanic degassing of carbon dioxide (CO2) and silicate chemical weathering are known to regulate the evolution of climate on a geologic timescale (> 106 yr), but the relationship between the solid earth and the shorter (< 105 yr) fluctuations of Quaternary glacial-interglacial cycles is still under debate. Here we show that the seawater osmium isotope composition (187Os/188Os), a proxy for the solid earth's response to climate change, has varied during the past 300,000 years in association with glacial-interglacial cycles. Our marine Os isotope mass-balance simulation reveals that the observed 187Os/188Os fluctuation cannot be explained solely by global chemical weathering rate changes corresponding to glacial-interglacial climate changes, but the fluctuation can be reproduced by taking account of short-term inputs of (1) radiogenic Os derived from intense weathering of glacial till during deglacial periods and (2) unradiogenic Os derived from enhanced seafloor hydrothermalism triggered by sea-level falls associated with increases of ice sheet volume. Our results constitute the first evidence that ice sheet recession and expansion during the Quaternary systematically and repetitively caused short-term (< 105 yr) solid earth responses via chemical weathering of glacial till and seafloor magmatism. This finding implies that climatic changes on < 105 yr timescales can provoke rapid feedbacks from the solid earth, a causal relationship that is the reverse of the longer-term (> 106 yr) causality that has been conventionally considered.
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Affiliation(s)
- Yusuke Kuwahara
- Department of Systems Innovation, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Kazutaka Yasukawa
- Department of Systems Innovation, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, 275-0016, Japan
| | - Koichiro Fujinaga
- Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, 275-0016, Japan
| | - Tatsuo Nozaki
- Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, 275-0016, Japan
- Submarine Resources Research Center, Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa, 237-0061, Japan
- Department of Planetology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Junichiro Ohta
- Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, 275-0016, Japan
- Volcanos and Earth's Interior Research Center, Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa, 237-0061, Japan
| | - Honami Sato
- Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, 275-0016, Japan
- Submarine Resources Research Center, Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa, 237-0061, Japan
- Department of Geosciences, University of Padova, Via G. Gradenigo 6, Padova, 35131, Italy
| | - Jun-Ichi Kimura
- Volcanos and Earth's Interior Research Center, Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa, 237-0061, Japan
| | - Kentaro Nakamura
- Department of Systems Innovation, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Graduate Program on Environmental Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
- Biogeochemistry Research Center, Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa, 237-0061, Japan
| | - Yasuhiro Kato
- Department of Systems Innovation, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
- Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
- Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, 275-0016, Japan.
- Submarine Resources Research Center, Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa, 237-0061, Japan.
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Hoshino D, Hirano H, Edahiro A, Motokawa K, Shirobe M, Watanabe Y, Motohashi Y, Ohara Y, Iwasaki M, Maruoka Y, Yokoyama Y, Narita M, Taniguchi Y, Shinkai S, Kitamura A. Association between Oral Frailty and Dietary Variety among Community-Dwelling Older Persons: A Cross-Sectional Study. J Nutr Health Aging 2021; 25:361-368. [PMID: 33575729 DOI: 10.1007/s12603-020-1538-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To examine the association between the severity of oral frailty (OF), which is one of the comprehensive oral functions evaluated, and dietary variety in community-dwelling older persons. DESIGN Cross-sectional study. SETTING Community-based. PARTICIPANTS A total of 769 community-dwelling older persons aged 65 and over. INTERVENTIONS We examined basic demographic information, functional status, cognitive status, depressive symptoms, medical history, and oral functions of the participants. MEASUREMENTS OF was defined by 1-2 and 3 or more of 6 items of oral function evaluation in the pre-oral frailty and oral frailty groups, respectively. Dietary variety was assessed using the dietary variety score (DVS). The participants were categorized into 3 groups for evaluation: those with a low score (0-2), medium score (3-5), and high score (≥6). Ordinal logistic regression analysis was performed to examine the association between OF and DVS. RESULTS The rate of OF in the participants was 21.6%, and its severity was significantly associated with DVS after adjusting for potential confounders (Pre-OF; adjusted odds ratio [OR] = 1.687, 95% confidence interval [CI] = 1.219-2.335, OF; adjusted OR = 2.857, 95% CI = 1.489-5.484). CONCLUSION The severity of OF was significantly associated with DVS in community-dwelling older persons. This suggests that DVS may be useful in understanding the effects of OF on the nutritional status. Further longitudinal studies are needed to elucidate the association between OF and DVS.
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Affiliation(s)
- D Hoshino
- Daichi Hoshino, Department of Special Needs Dentistry, Division of Community Based Comprehensive Dentistry, School of Dentistry, Showa University, Tokyo 145-8515, Japan, Phone: +81 337 87 1151, Fax: +81 337 85 6403,
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Takagi M, Shinohara T, Kamakura T, Sekiguchi Y, Yokoyama Y, Aihara N, Hiraoka M, Aonuma K. Long-term prognosis in patients with non-type 1 Brugada ECG: results from a large Japanese cohort of Brugada syndrome. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Most recent consensus conference report recommends Brugada syndrome (BrS) is diagnosed in patients with ST segment elevation with spontaneous, drug-induced or fever-induced type 1 morphology. Prognosis in patients with type 2 or 3 ECG without drug-induced or fever-induced type 1 ECG is still unknown.
Purpose
To evaluate a long-term prognosis in patients with non-type 1 Brugada ECG in a large Japanese cohort of BrS (The Japan Idiopathic Ventricular Fibrillation Study [J-IVFS]).
Methods
From 528 patients in J-IVFS, a total of 28 consecutive non-type 1 patients (54±14 years, all male, previous sustained ventricular tachyarrhythmias (VTs) 1, syncope 11, asymptomatic 16) were enrolled. Cardiac events (CI: sudden cardiac death or VTs) during the follow-up period were evaluated, and risk factors for the cardiac events were assessed.
Results
During a mean follow-up period of 111±91 months (median 134 months), 4 patients experienced cardiac events (1.5%/yr), who all had received implantable cardioverter defibrillator implantation. There was no statistically significant clinical risk factor for cardiac events. However, the incidences of cardiac events tended to be higher in symptomatic patients (CI: 25.0, non-CI: 6.3%, p=0.17), those with wide QRS duration >90 msec in lead V2 (CI: 30.0, non-CI: 6.3%, p=0.11), and those with inducible VTs (CI: 21.1, non-CI: 0%, p=0.20), as determined by the Kaplan-Meier method. The annual incidences of cardiac events in patients with symptom, wide QRS duration >90msec in lead V2, or inducible VTs were 2.8, 3.5, and 2.0%/yr, respectively. The incidences of cardiac events were significantly higher in patients with all these 3 factors (9.9%/yr) than those without (p=0.01).
Conclusions
Our large-scaled multicentre study revealed long-term prognosis in patients with non-type 1 Brugada ECG. The combination of symptom, wide QRS duration in lead V2, and inducible VTs may be useful to evaluate risk for cardiac events. The patients with all these parameters showed high risk for cardiac events and need to be carefully followed.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Takagi
- Kansai Medical University, Moriguchi, Japan
| | - T Shinohara
- Oita University Faculty of Medicine, Oita, Japan
| | - T Kamakura
- National Cerebral & Cardiovascular Center, Suita, Japan
| | | | - Y Yokoyama
- St. Luke's International Hospital, Cardiology, Tokyo, Japan
| | - N Aihara
- Senri central hospital, Suita, Japan
| | - M Hiraoka
- Tokyo Medical and Dental University, Cardiology, Tokyo, Japan
| | - K Aonuma
- University of Tsukuba, Tsukuba, Japan
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43
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Yokoyama Y, Miyamoto K, Nakai M, Sumita Y, Ueda N, Nakajima K, Kamakura T, Wada M, Yamagata K, Ishibashi K, Inoue Y, Nagase S, Noda T, Aiba T, Kusano K. The safety of catheter ablation of atrial fibrillation in elderly patients -analysis of the nationwide database in Japan, JROAD-DPC-. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
“Age” is one of the major concerns and determinants of the indications for catheter ablation (CA) of atrial fibrillation (AF). There are little safety data on CA of AF according to the age. This study aimed to assess the safety of CA in elderly patients undergoing CA of AF.
Methods and results
We investigated the complication rate of CA of AF for the different age groups (<60 years, 60–65, 65–70, 70–75, 75–80, 80–85, and ≥85) by a nationwide database (Japanese Registry Of All cardiac and vascular Diseases [JROAD]-DPC). The JROAD-DPC included 73,296 patients (65±11 years, 52,883 men) who underwent CA of AF from 516 hospitals in Japan. Aged patients had more comorbidities and a significantly increased CHADS2 score and higher rate of female according to a higher age. The overall complication rate was 2.6% and in-hospital mortality was 0.05%. By comparing each age group, complications occurred more frequently in higher aged groups. A multivariate adjusted hazard ratio revealed an increased age was independently and significantly associated with the overall complications (odds ratio was 1.25, 1.35, 1.72, 1.86, 2.76 and 3.13 respectively; reference <60 years).
Conclusions
The frequency of complications was significantly higher according to a higher age. We should take note of the indications and procedure for CA of AF in aged patients.
Funding Acknowledgement
Type of funding source: Public Institution(s). Main funding source(s): Intramural Research Fund 17 (Kusano) for Cardiovascular Diseases of the National Cerebral and Cardiovascular Center
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Affiliation(s)
- Y Yokoyama
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Miyamoto
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Nakai
- National Cerebral and Cardiovascular Center Hospital, Center for Cerebral and Cardiovascular Disease Information, Osaka, Japan
| | - Y Sumita
- National Cerebral and Cardiovascular Center Hospital, Center for Cerebral and Cardiovascular Disease Information, Osaka, Japan
| | - N Ueda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Nakajima
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Kamakura
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Wada
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Yamagata
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Ishibashi
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Inoue
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - S Nagase
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Noda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Aiba
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Kusano
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
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44
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Cybulski JD, Husa SM, Duprey NN, Mamo BL, Tsang TPN, Yasuhara M, Xie JY, Qiu JW, Yokoyama Y, Baker DM. Coral reef diversity losses in China's Greater Bay Area were driven by regional stressors. Sci Adv 2020; 6:eabb1046. [PMID: 33008908 PMCID: PMC7852383 DOI: 10.1126/sciadv.abb1046] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 08/19/2020] [Indexed: 05/12/2023]
Abstract
Observations of coral reef losses to climate change far exceed our understanding of historical degradation before anthropogenic warming. This is a critical gap to fill as conservation efforts simultaneously work to reverse climate change while restoring coral reef diversity and function. Here, we focused on southern China's Greater Bay Area, where coral communities persist despite centuries of coral mining, fishing, dredging, development, and pollution. We compared subfossil assemblages with modern-day communities and revealed a 40% decrease in generic diversity, concomitant to a shift from competitive to stress-tolerant species dominance since the mid-Holocene. Regions with characteristically poor water quality-high chl-a, dissolved inorganic nitrogen, and turbidity-had lower contemporary diversity and the greatest community composition shift observed in the past, driven by the near extirpation of Acropora These observations highlight the urgent need to mitigate local stressors from development in concert with curbing greenhouse gas emissions.
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Affiliation(s)
- Jonathan D Cybulski
- The Swire Institute of Marine Science, The University of Hong Kong, Cape D'Aguilar Road, Shek O, Hong Kong SAR, China
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam, Hong Kong SAR, China
| | - Stefan M Husa
- The Swire Institute of Marine Science, The University of Hong Kong, Cape D'Aguilar Road, Shek O, Hong Kong SAR, China
- Environmental and Marine Biology, Åbo Akademi University, Turku, Finland
| | - Nicolas N Duprey
- The Swire Institute of Marine Science, The University of Hong Kong, Cape D'Aguilar Road, Shek O, Hong Kong SAR, China
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam, Hong Kong SAR, China
- Max Planck Institute for Chemistry (Otto Hahn Institute) Hahn-Meitner-Weg 1, 55128 Mainz, Germany
| | - Briony L Mamo
- The Swire Institute of Marine Science, The University of Hong Kong, Cape D'Aguilar Road, Shek O, Hong Kong SAR, China
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam, Hong Kong SAR, China
- Department of Biological Sciences, Macquarie University, North Ryde, NSW, Australia
| | - Toby P N Tsang
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam, Hong Kong SAR, China
| | - Moriaki Yasuhara
- The Swire Institute of Marine Science, The University of Hong Kong, Cape D'Aguilar Road, Shek O, Hong Kong SAR, China
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam, Hong Kong SAR, China
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - James Y Xie
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Jian-Wen Qiu
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa 277-8564, Japan
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Hongo 113-0033, Japan
- Graduate Program on Environmental Sciences, The University of Tokyo, Meguro 153-0041, Japan
- Biogeochemistry Program, Japan Agency for Marine-Earth Science and Technology, Yokosuka 237-0061, Japan
| | - David M Baker
- The Swire Institute of Marine Science, The University of Hong Kong, Cape D'Aguilar Road, Shek O, Hong Kong SAR, China.
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam, Hong Kong SAR, China
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45
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Dmowski W, Yoo GH, Gierlotka S, Wang H, Yokoyama Y, Park ES, Stelmakh S, Egami T. High Pressure Quenched Glasses: unique structures and properties. Sci Rep 2020; 10:9497. [PMID: 32528160 PMCID: PMC7289830 DOI: 10.1038/s41598-020-66418-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 12/26/2019] [Accepted: 05/20/2020] [Indexed: 11/27/2022] Open
Abstract
Zr-based metallic glasses are prepared by quenching supercooled liquid under pressure. These glasses are stable in ambient conditions after decompression. The High Pressure Quenched glasses have a distinct structure and properties. The pair distribution function shows redistribution of the Zr-Zr interatomic distances and their shift towards smaller values. These glasses exhibit higher density, hardness, elastic modulus, and yield stress. Upon heating at ambient pressure, they show volume expansion and distinct relaxation behavior, reaching an equilibrated state above the glass transition. These experimental results are consistent with an idea of pressure-induced low to high density liquid transition in the supercooled melt.
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Affiliation(s)
- W Dmowski
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA.
| | - G H Yoo
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - S Gierlotka
- Institute of High Pressure Physics, Polish Academy of Science, Warsaw, Poland
| | - H Wang
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Y Yokoyama
- Materials Research Institute, Tohoku University, Sendai, Japan
| | - E S Park
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - S Stelmakh
- Institute of High Pressure Physics, Polish Academy of Science, Warsaw, Poland
| | - T Egami
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA.,Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
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46
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Nishida K, Chew YC, Miyairi Y, Hirabayashi S, Suzuki A, Hayashi M, Yamamoto Y, Sato M, Nojiri Y, Yokoyama Y. Novel reverse radioisotope labelling experiment reveals carbon assimilation of marine calcifiers under ocean acidification conditions. Methods Ecol Evol 2020. [DOI: 10.1111/2041-210x.13396] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kozue Nishida
- Department of Chemistry and Material Engineering National Institute of TechnologyIbaraki College Hitachinaka Japan
- Japan Society for the Promotion of Science (JSPS) Tokyo Japan
- Faculty of Life and Environmental Sciences University of Tsukuba Tsukuba Japan
| | - Yue Chin Chew
- Atmosphere and Ocean Research Institute The University of Tokyo Kashiwa Japan
- Graduate Program on Environmental Sciences The University of Tokyo Tokyo Japan
| | - Yosuke Miyairi
- Atmosphere and Ocean Research Institute The University of Tokyo Kashiwa Japan
| | - Shoko Hirabayashi
- Atmosphere and Ocean Research Institute The University of Tokyo Kashiwa Japan
- Department of Earth and Planetary Science Graduate School of Science The University of Tokyo Tokyo Japan
| | - Atsushi Suzuki
- Geological Survey of Japan National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Japan
| | - Masahiro Hayashi
- The Demonstration Laboratory Marine Ecology Research Institute Kashiwazaki Japan
| | - Yuzo Yamamoto
- The Demonstration Laboratory Marine Ecology Research Institute Kashiwazaki Japan
| | - Mizuho Sato
- Geological Survey of Japan National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Japan
- Asahi Geo‐Survey Co. Ltd Tokyo Japan
| | - Yukihiro Nojiri
- Department of Earth and Environmental Sciences Hirosaki University Hirosaki Japan
- Center for Global Environmental Research National Institute for Environmental Studies Tsukuba Japan
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute The University of Tokyo Kashiwa Japan
- Graduate Program on Environmental Sciences The University of Tokyo Tokyo Japan
- Department of Earth and Planetary Science Graduate School of Science The University of Tokyo Tokyo Japan
- Biogeochemistry Program Japan Agency for Marine‐Earth Science and Technology Yokosuka Japan
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47
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Otani S, Yamane M, Yokoyama Y, Chen-Yoshikawa T, Oishi H, Nakajima J, Yoshino I, Nagayasu T, Shiraishi T, Chida M, Shintani Y, Date H, Okada K, Oto T. Malignancy after Lung Transplantation in Japan. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.493] [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: 10/24/2022] Open
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48
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Ueda S, Chen-Yoshikawa T, Mineura K, Yamanashi K, Oda H, Yokoyama Y, Ikeda M, Tokuno J, Kayawake H, Yamagishi H, Gochi F, Okabe R, Tanaka S, Yamada Y, Nakajima D, Ohsumi A, Hamaji M, Date H. Protective Effects of Necrosulfonamide on Ischemia-Reperfusion Injury in Rat Lung. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.414] [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: 10/24/2022] Open
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49
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Tsukamoto S, Takeuchi T, Tani A, Miyairi Y, Yokoyama Y. ESR and Radiocarbon Dating of Gut Strings from Early Plucked Instruments. Methods Protoc 2020; 3:mps3010013. [PMID: 32012965 PMCID: PMC7189657 DOI: 10.3390/mps3010013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/17/2020] [Accepted: 01/17/2020] [Indexed: 12/03/2022] Open
Abstract
Early European plucked instruments have recently experienced a great revival, but a few aspects remain unknown (e.g., the gauge of gut strings). Here we report, for the first time, that the electron spin resonance (ESR) signal intensity of oxidized iron, Fe(III), from gut strings at g = 2 increases linearly with age within a few hundred years. The signal increase in the remaining old strings on early instruments can be used to judge if they are as old as or younger than the instrument. Obtaining the authenticity information of gut strings contributes to the revival of the old instruments and the music.
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Affiliation(s)
- Sumiko Tsukamoto
- Leibniz Institute for Applied Geophysics, Stilleweg 2, 30655 Hannover, Germany
- Correspondence:
| | - Taro Takeuchi
- The consortium for Guitar Research, Sidney Sussex College, Cambridge CB2 3HU, UK;
| | - Atsushi Tani
- Graduate School of Human Development and Environment, Kobe University, Kobe 657-8501, Japan;
| | - Yosuke Miyairi
- Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba 277-8564, Japan; (Y.M.); (Y.Y.)
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba 277-8564, Japan; (Y.M.); (Y.Y.)
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50
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Hagino H, Narita R, Yokoyama Y, Watanabe M, Tomomitsu M. A multicenter, randomized, rater-blinded, parallel-group, phase 3 study to compare the efficacy, safety, and immunogenicity of biosimilar RGB-10 and reference once-daily teriparatide in patients with osteoporosis. Osteoporos Int 2019; 30:2027-2037. [PMID: 31243480 PMCID: PMC6795613 DOI: 10.1007/s00198-019-05038-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 05/28/2019] [Indexed: 01/16/2023]
Abstract
UNLABELLED The efficacy and safety of RGB-10 and reference teriparatide were evaluated in a randomized 52-week study in 250 patients with osteoporosis at high risk of fracture. RGB-10 was equivalent to reference teriparatide in efficacy and had a comparable safety profile. INTRODUCTION RGB-10 is the first biosimilar teriparatide authorized in the European Union. This multicenter, randomized, rater-blinded, parallel-group phase 3 study evaluated equivalence in efficacy and compared safety between RGB-10 and reference teriparatide in patients with osteoporosis at high risk of fracture for registration in Japan. METHODS Ambulatory postmenopausal women and men (≥ 55 years of age) with osteoporosis at high risk of fracture were randomized 1:1 to receive either RGB-10 or reference teriparatide 20 μg once daily via subcutaneous self-injection for 52 weeks. The primary efficacy endpoint was the percent change from baseline to 52 weeks in lumbar spine (L2-L4) bone mineral density (BMD). Safety outcomes and immunogenicity were also assessed. RESULTS In total, 250 patients (125 in each group) were randomized. The percent change from baseline to 52 weeks in lumbar spine (L2-L4) BMD (mean ± standard deviation) was 8.94% ± 6.19% in the RGB-10 group and 9.65% ± 6.22% in the reference teriparatide group. The estimated between-group difference (95% confidence interval) was - 0.65% (- 2.17% to - 0.87%) within the pre-specified equivalence margin (± 2.8%), which indicates equivalence in efficacy between the two groups. Changes in BMD at lumbar spine (L1-L4), femoral neck, and total hip and serum procollagen type I amino-terminal propeptide were also similar between the groups. Safety profiles, including immunogenicity, were comparable. CONCLUSIONS The therapeutic equivalence of RGB-10 to reference teriparatide was demonstrated. RGB-10 had comparable safety profile to that of reference teriparatide.
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Affiliation(s)
- H Hagino
- School of Health Science, Faculty of Medicine, Tottori University, 86 Nishicho, Yonago City, Tottori, 683-8503, Japan.
| | - R Narita
- Mochida Pharmaceutical Co. Ltd, Tokyo, Japan
| | - Y Yokoyama
- Mochida Pharmaceutical Co. Ltd, Tokyo, Japan
| | - M Watanabe
- Mochida Pharmaceutical Co. Ltd, Tokyo, Japan
| | - M Tomomitsu
- Mochida Pharmaceutical Co. Ltd, Tokyo, Japan
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