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Sato T, Yamate S, Utsunomiya T, Inaba Y, Ike H, Kinoshita K, Doi K, Kawano T, Shiomoto K, Hara T, Sonoda K, Kaneuji A, Takahashi E, Shimizu T, Takahashi D, Kohno Y, Kabata T, Inoue D, Matsuda S, Goto K, Mawatari T, Baba S, Takagi M, Ito J, Nakashima Y. Life Course Epidemiology of Hip Osteoarthritis in Japan: A Multicenter, Cross-Sectional Study. J Bone Joint Surg Am 2024:00004623-990000000-01070. [PMID: 38626018 DOI: 10.2106/jbjs.23.01044] [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: 04/18/2024]
Abstract
BACKGROUND The incidence of developmental dysplasia of the hip (DDH) in Japanese newborns has reduced drastically following a primary prevention campaign initiated around 1972 to 1973; this perinatal education campaign promoted maintaining the hips of newborns in the naturally flexed-leg position. The purpose of the present study was to describe the life course epidemiology of hip osteoarthritis (OA) in adolescent and adult patients and to assess its association with exposure to the primary prevention campaign for DDH. METHODS We included new patients with hip OA diagnosed from January 1, 2022, to December 31, 2022, at 12 core hospitals (8 special-function hospitals and 4 regional medical care support hospitals). The trend in the percentage of hips with a history of DDH treatment in childhood was estimated with use of a centered moving average using the birth year of the patient. We compared the prevalence of severe subluxation (Crowe type II, III, or IV) between patients with secondary hip OA due to hip dysplasia who were born in or before 1972 and those who were born in or after 1973. RESULTS Overall, 1,095 patients (1,381 hips) were included. The mean age at the time of the survey was 63.5 years (range, 15 to 95 years). A total of 795 patients (1,019 hips; 73.8% of hips) were diagnosed with secondary OA due to hip dysplasia. Approximately 13% to 15% of hips among patients born from 1963 to 1972 had a history of DDH treatment in childhood; however, the percentage decreased among patients born in or after 1973. The prevalence of severe subluxation (Crowe type II, III, or IV) among patients born in or after 1973 was 2.4%, which was significantly less than that among patients born in or before 1972 (11.1%; odds ratio, 0.20; p < 0.001). CONCLUSIONS As of 2022, secondary hip OA due to hip dysplasia is still responsible for most new cases of adolescent and adult hip OA seen in core hospitals in Japan. However, the perinatal education campaign initiated 50 years ago, which utilized a population approach and advocated for maintaining the hips of newborns in the naturally flexed-leg position, may have improved the environmental factors of DDH, as indicated by the apparently reduced need for treatment of DDH in childhood and the associated severe subluxation. This may result in a reduced need for challenging hip surgery later in life. LEVEL OF EVIDENCE Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Taishi Sato
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoshi Yamate
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takeshi Utsunomiya
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yutaka Inaba
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - Hiroyuki Ike
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - Koichi Kinoshita
- Department of Orthopaedic Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Kenichiro Doi
- Department of Orthopaedic Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Tsutomu Kawano
- Department of Orthopaedic Surgery, Kyushu Rosai Hospital, Kitakyushu, Japan
| | - Kyohei Shiomoto
- Department of Orthopaedic Surgery, Kyushu Rosai Hospital, Kitakyushu, Japan
| | - Toshihiko Hara
- Department of Orthopaedic Surgery, Aso Iizuka Hospital, Iizuka, Japan
| | - Kazuhiko Sonoda
- Department of Orthopaedic Surgery, Aso Iizuka Hospital, Iizuka, Japan
| | - Ayumi Kaneuji
- Department of Orthopaedic Surgery, Kanazawa Medical University, Kahoku, Japan
| | - Eiji Takahashi
- Department of Orthopaedic Surgery, Kanazawa Medical University, Kahoku, Japan
| | - Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yusuke Kohno
- Department of Orthopaedic Surgery, Japan Community Healthcare Organization (JCHO) Kyushu Hospital, Kitakyushu, Japan
| | - Tamon Kabata
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Daisuke Inoue
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koji Goto
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Taro Mawatari
- Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka, Japan
| | - Shoji Baba
- Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka, Japan
| | - Michiaki Takagi
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Juji Ito
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Shimizu T, Miyazaki T, Yokota S, Ishizu H, Takahashi D, Iwasaki N. Author Correction: Effect of longer femoral head on leg length, offset, and range of motion in total hip arthroplasty: a simulation study. Sci Rep 2024; 14:8481. [PMID: 38605159 PMCID: PMC11009338 DOI: 10.1038/s41598-024-59221-1] [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: 04/13/2024] Open
Affiliation(s)
- Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan.
| | - Takuji Miyazaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Shunichi Yokota
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Hotaka Ishizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
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3
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Yokota S, Ishizu H, Miyazaki T, Takahashi D, Iwasaki N, Shimizu T. Osteoporosis, Osteoarthritis, and Subchondral Insufficiency Fracture: Recent Insights. Biomedicines 2024; 12:843. [PMID: 38672197 DOI: 10.3390/biomedicines12040843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 03/31/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
The increased incidence of osteoarthritis (OA), particularly knee and hip OA, and osteoporosis (OP), owing to population aging, have escalated the medical expense burden. Osteoarthritis is more prevalent in older women, and the involvement of subchondral bone fragility spotlights its association with OP. Notably, subchondral insufficiency fracture (SIF) may represent a more pronounced condition of OA pathophysiology. This review summarizes the relationship between OA and OP, incorporating recent insights into SIF. Progressive SIF leads to joint collapse and secondary OA and is associated with OP. Furthermore, the thinning and fragility of subchondral bone in early-stage OA suggest that SIF may be a subtype of OA (osteoporosis-related OA, OPOA) characterized by significant subchondral bone damage. The high bone mineral density observed in OA may be overestimated due to osteophytes and sclerosis and can potentially contribute to OPOA. The incidence of OPOA is expected to increase along with population aging. Therefore, prioritizing OP screening, early interventions for patients with early-stage OA, and fracture prevention measures such as rehabilitation, fracture liaison services, nutritional management, and medication guidance are essential.
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Affiliation(s)
- Shunichi Yokota
- Department of Orthopedic Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Hotaka Ishizu
- Department of Orthopedic Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Takuji Miyazaki
- Department of Orthopedic Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Daisuke Takahashi
- Department of Orthopedic Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Norimasa Iwasaki
- Department of Orthopedic Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Tomohiro Shimizu
- Department of Orthopedic Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
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Shiratori H, Hattori KM, Nakata K, Okawa T, Komiyama S, Kinashi Y, Kabumoto Y, Kaneko Y, Nagai M, Shindo T, Moritoki N, Kawamura YI, Dohi T, Takahashi D, Kimura S, Hase K. A purified diet affects intestinal epithelial proliferation and barrier functions through gut microbial alterations. Int Immunol 2024; 36:223-240. [PMID: 38262747 PMCID: PMC10989658 DOI: 10.1093/intimm/dxae003] [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] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/23/2024] [Indexed: 01/25/2024] Open
Abstract
The gut microbiota plays a crucial role in maintaining epithelial barrier function. Although multiple studies have demonstrated the significance of dietary factors on the gut microbiota and mucosal barrier function, the impact of a purified diet, which has long been used in various animal experiments, on intestinal homeostasis remains to be elucidated. Here, we compared the impact of two different types of diets, a crude diet and an AIN-93G-formula purified diet, on epithelial integrity and the gut microbiota. Purified diet-fed mice exhibited shorter villi and crypt lengths and slower epithelial turnover, particularly in the ileum. In addition, antimicrobial products, including REG3γ, were substantially decreased in purified diet-fed mice. Purified diet feeding also suppressed α1,2-fucosylation on the epithelial surface. Furthermore, the purified diet induced metabolic rewiring to fatty acid oxidation and ketogenesis. 16S ribosomal RNA gene sequencing of the ileal contents and mucus layer revealed distinct gut microbiota compositions between the purified and crude diet-fed mice. Purified diet feeding reduced the abundance of segmented filamentous bacteria (SFB), which potently upregulate REG3γ and fucosyltransferase 2 (Fut2) by stimulating group 3 innate lymphoid cells (ILC3s) to produce IL-22. These observations illustrate that the intake of a crude diet secures epithelial barrier function by facilitating SFB colonization, whereas a purified diet insufficiently establishes the epithelial barrier, at least partly owing to the loss of SFB. Our data suggest that the influence of purified diets on the epithelial barrier integrity should be considered in experiments using purified diets.
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Affiliation(s)
- Hiroaki Shiratori
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
- Clinical Research Advancement Section, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - Kisara M Hattori
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
| | - Kazuaki Nakata
- Clinical Research Advancement Section, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - Takuma Okawa
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
- Clinical Research Advancement Section, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - Seiga Komiyama
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
| | - Yusuke Kinashi
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
| | - Yuma Kabumoto
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
| | - Yuria Kaneko
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
- Clinical Research Advancement Section, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - Motoyoshi Nagai
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
- Clinical Research Advancement Section, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - Tomoko Shindo
- Electron Microscope Laboratory, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Nobuko Moritoki
- Electron Microscope Laboratory, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yuki I Kawamura
- Clinical Research Advancement Section, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - Taeko Dohi
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
| | - Daisuke Takahashi
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
| | - Shunsuke Kimura
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
| | - Koji Hase
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan
- The Institute of Fermentation Sciences (IFeS), Faculty of Food and Agricultural Sciences, Fukushima University, Kanayagawa, Fukushima 960-1296, Japan
- International Research and Development Centre for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo (IMSUT), Tokyo 108-8639, Japan
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5
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Oda K, Murata T, Tsujimoto K, Tanaka F, Takahashi D, Saiki R, Hirabayashi Y, Tsunoda A, Saito K, Yuasa H, Imai H, Katayama K, Dohi K. A case of carcinoid syndrome probably exacerbated by hemodialysis in which prochlorperazine maleate was effective. CEN Case Rep 2024; 13:135-140. [PMID: 37606883 PMCID: PMC10982206 DOI: 10.1007/s13730-023-00814-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 07/31/2023] [Indexed: 08/23/2023] Open
Abstract
Carcinoid syndrome is caused by the release of serotonin and other substances, which commonly occurs due to liver metastasis of neuroendocrine tumors. It rarely occurs due to liver metastasis of neuroendocrine carcinoma. We report the case of a patient with liver metastasis of neuroendocrine carcinoma who suffered from acute abdominal pain and diarrhea triggered by hemodialysis. Various differential diagnoses were considered, but we concluded these symptoms to be probably caused by exacerbation of carcinoid syndrome, as the serum 5HIAA level was markedly elevated, and a drug with anti-serotonin activity was effective. Prochlorperazine maleate, which has anti-serotonin activity, was effective for these symptoms, and the patient was able to continue maintenance hemodialysis, which contributed to his quality of life and prognosis. We speculated the mechanism of carcinoid exacerbation was that substances such as serotonin had entered the systemic circulation via the increased extrahepatic shunt of the portal venous blood flow, entering the inferior vena cava and that this condition had been triggered by hemodialysis via the same mechanism as portal systemic encephalopathy.
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Affiliation(s)
- Keiko Oda
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Tomohiro Murata
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan.
| | - Kayo Tsujimoto
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Fumika Tanaka
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Daisuke Takahashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Ryosuke Saiki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Yosuke Hirabayashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Akira Tsunoda
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kanako Saito
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hiroto Yuasa
- Department of Pathology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hiroshi Imai
- Department of Pathology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kan Katayama
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
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Nakamura J, Fukushima W, Ando W, Hagiwara S, Kawarai Y, Shiko Y, Kawasaki Y, Sakai T, Ito K, Arishima Y, Chosa E, Fujimoto Y, Fujiwara K, Hasegawa Y, Hayashi S, Imagama T, Inaba Y, Ishibashi Y, Ishidou Y, Ito H, Ito H, Ito J, Jinno T, Kabata T, Kaku N, Kaneuji A, Kishida S, Kobayashi S, Komiya S, Kubo T, Majima T, Mashima N, Mawatari M, Miki H, Miyatake K, Motomura G, Nagoya S, Nakamura H, Nakamura Y, Nakanishi R, Nakashima Y, Nakasone S, Nishii T, Nishiyama T, Ohta Y, Ohzono K, Osaki M, Sasaki K, Seki T, Shishido T, Shoji T, Sudo A, Takagi M, Takahashi D, Takao M, Tanaka S, Tanaka T, Tetsunaga T, Ueshima K, Yamamoto K, Yamamoto T, Yamamoto Y, Yamasaki T, Yasunaga Y, Sugano N. Time elapsed from definitive diagnosis to surgery for osteonecrosis of the femoral head: a nationwide observational study in Japan. BMJ Open 2024; 14:e082342. [PMID: 38553078 PMCID: PMC10982743 DOI: 10.1136/bmjopen-2023-082342] [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: 11/23/2023] [Accepted: 03/19/2024] [Indexed: 04/02/2024] Open
Abstract
OBJECTIVES This study documents the time elapsed from the diagnosis of osteonecrosis of the femoral head (ONFH) to surgery, exploring the factors that influence ONFH severity. DESIGN Retrospective observational study of a nationwide database. SETTING The Kaplan-Meier method with log-rank tests was applied to examine the period from definitive diagnosis of ONFH to surgery using any surgery as the end point. For bilateral cases, the date of the first surgery was the endpoint. PARTICIPANTS This study included 2074 ONFH cases registered in 34 university hospitals and highly specialised hospitals of the multicentre sentinel monitoring system of the Japanese Investigation Committee between 1997 and 2018. MAIN OUTCOME MEASURE The primary outcome was the time from diagnosis to surgery. The secondary outcome was the proportion of subjects remaining without surgery at 3, 6 and 9 months, and at 1, 2 and 5 years after diagnosis. RESULTS The median time to surgery was 9 months (IQR 4-22 months) after diagnosis of ONFH. The time to surgery was significantly shorter in the alcohol alone group and the combined corticosteroid and alcohol group than in the corticosteroid alone group (p=0.018 and p<0.001, respectively), in early stage ONFH with no or mild joint destruction (stages II and III, p<0.001), and with joint preserving surgery (p<0.001). The proportion without surgery was 75.8% at 3 months, 59.6% at 6 months, 48.2% at 9 months, 40.5% at 1 year, 22.2% at 2 years and 8.3% at 5 years. CONCLUSION ONFH has been considered to be an intractable disease that often requires surgical treatment, but the fact that surgery was performed in more than half of the patients within 9 months from diagnosis suggests severe disease with a significant clinical impact. TRIAL REGISTRATION NUMBER Chiba University ID1049.
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Affiliation(s)
- Junichi Nakamura
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Wakaba Fukushima
- Department of Public Health, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Wataru Ando
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Orthopaedic Surgery, Kansai Rosai Hospital, Amagasaki, Japan
| | - Shigeo Hagiwara
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yuya Kawarai
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yuki Shiko
- Biostatistics Section, Clinical Research Centre, Chiba University Hospital, Chiba, Japan
| | - Yohei Kawasaki
- Biostatistics Section, Clinical Research Centre, Chiba University Hospital, Chiba, Japan
- Faculty of Nursing, Japanese Red Cross College of Nursing, Tokyo, Japan
| | - Takashi Sakai
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Orthopaedic Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Kazuya Ito
- Department of Public Health, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Graduate School of Nursing, Osaka Metropolitan University, Osaka, Japan
| | - Yoshiya Arishima
- Department of Orthopaedic Surgery, Kagoshima University, Kagoshima, Japan
| | - Etsuo Chosa
- Department of Orthopaedic Surgery, Miyazaki University, Miyazaki, Japan
| | - Yusuke Fujimoto
- Department of Orthopaedic Surgery, Kagoshima University, Kagoshima, Japan
| | - Kazuo Fujiwara
- Department of Orthopaedic Surgery, Okayama University, Okayama, Japan
| | | | - Shinya Hayashi
- Department of Orthopaedic Surgery, Kobe University, Kobe, Japan
| | - Takashi Imagama
- Department of Orthopaedic Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Yutaka Inaba
- Department of Orthopaedic Surgery, Yokohama City University, Yokohama, Japan
| | | | - Yasuhiro Ishidou
- Department of Orthopaedic Surgery, Kagoshima University, Kagoshima, Japan
| | - Hideya Ito
- Department of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Ito
- Department of Orthopaedic Surgery, Asahikawa Medical University, Asahikawa, Japan
| | - Juji Ito
- Department of Orthopaedic Surgery, Yamagata University, Yamagata, Japan
| | - Tetsuya Jinno
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tamon Kabata
- Department of Orthopaedic Surgery, Kanazawa University, Kanazawa, Japan
| | - Nobuhiro Kaku
- Department of Orthopaedic Surgery, Oita University, Yufu, Japan
| | - Ayumi Kaneuji
- Department of Orthopaedic Surgery, Kanazawa Medical University, Kahoku-gun, Japan
| | - Shunji Kishida
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Seneki Kobayashi
- Department of Orthopaedic Surgery, Suwa Red Cross Hospital, Suwa, Japan
| | - Setsuro Komiya
- Department of Orthopaedic Surgery, Kagoshima University, Kagoshima, Japan
| | - Toshikazu Kubo
- Department of Orthopaedic Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tokifumi Majima
- Department of Orthopaedic Surgery, Hokkaido University, Sapporo, Japan
| | - Naohiko Mashima
- Department of Orthopaedic Surgery, Ehime University, Toon, Japan
| | | | - Hidenobu Miki
- Department of Orthopaedic Surgery, Osaka National Hospital, Osaka, Japan
| | - Kazumasa Miyatake
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Goro Motomura
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka, Japan
| | - Satoshi Nagoya
- Department of Orthopaedic Surgery, Sapporo Medical University, Sapporo, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka Metropolitan University, Osaka, Japan
| | | | - Ryosuke Nakanishi
- Department of Orthopaedic Surgery, Showa University Fujigaoka Hospital, Yokohama, Japan
| | | | - Satoshi Nakasone
- Department of Orthopaedic Surgery, Ryukyu University, Nakagami-gun, Japan
| | - Takashi Nishii
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
| | | | - Yoichi Ohta
- Department of Orthopaedic Surgery, Osaka Metropolitan University, Osaka, Japan
| | - Kenji Ohzono
- Department of Orthopaedic Surgery, Kansai Rosai Hospital, Amagasaki, Japan
| | - Makoto Osaki
- Department of Orthopaedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Kan Sasaki
- Department of Orthopaedic Surgery, Yamagata University, Yamagata, Japan
| | - Taisuke Seki
- Department of Orthopaedic Surgery, Nagoya University, Nagoya, Japan
- Depatrment of Orthopedic Surgery, Aichi Medical University Medical Centre, Okazaki, Japan
| | - Takaaki Shishido
- Department of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takeshi Shoji
- Department of Orthopaedic Surgery, Hiroshima University, Hiroshima, Japan
| | - Akihiro Sudo
- Department of Orthopaedic Surgery, Mie University, Tsu, Japan
| | - Michiaki Takagi
- Department of Orthopaedic Surgery, Yamagata University, Yamagata, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Hokkaido University, Sapporo, Japan
| | - Masaki Takao
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Orthopaedic Surgery, Ehime University, Toon, Japan
| | - Sakae Tanaka
- Department of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan
| | - Takeyuki Tanaka
- Department of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan
| | | | - Keiichiro Ueshima
- Department of Orthopaedic Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kengo Yamamoto
- Department of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takuaki Yamamoto
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka, Japan
- Department of Orthopaedic Surgery, Fukuoka University, Fukuoka, Japan
| | - Yuji Yamamoto
- Department of Orthopaedic Surgery, Hirosaki University, Hirosaki, Japan
| | - Takuma Yamasaki
- Department of Orthopaedic Surgery, Hiroshima University, Hiroshima, Japan
| | - Yuji Yasunaga
- Department of Orthopaedic Surgery, Hiroshima University, Hiroshima, Japan
| | - Nobuhiko Sugano
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
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7
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Kamada H, Takahashi D, Shimizu M, Uchida M, Watanabe Y, Nakajima F, Miyata S, Satake M. A novel immunocomplex capture fluorescence assay (ICFA) using fluorescent beads and transfected cells for specific identification of human neutrophil antigen (HNA)-1a and -1b antibodies. Transfusion 2024. [PMID: 38530740 DOI: 10.1111/trf.17813] [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: 04/13/2023] [Revised: 11/29/2023] [Accepted: 03/14/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND To identify specific human neutrophil antigen (HNA) antibodies, assays using neutrophils such as monoclonal antibody-specific immobilization of granulocyte antigens (MAIGA) are recommended. However, these assays are limited by labor-intensive neutrophil preparation and varying antigen expression levels. METHODS We evaluated a newly developed immunocomplex capture fluorescence assay (ICFA) for identifying HNA-1 antibodies and compared it to MAIGA and LABScreen Multi (LABM), which utilizes recombinant HNA-coated Luminex beads. For ICFA, HNA-1a or HNA-1b transfected cells replaced neutrophils. Cells incubated with serum were lysed, and immune complexes were captured using five CD16 monoclonal antibody-conjugated Luminex beads. Nine antisera with known specificity and 26 samples suspected of containing HNA antibodies were analyzed by ICFA and MAIGA using neutrophils or transfected cells (ICFA-N or ICFA-T, and MAIGA-N or MAIGA-T, respectively). RESULTS ICFA-T and MAIGA-N accurately determined the specificity of all antibodies in the nine antiserum samples. The ICFA-T detection limit was 2048-fold for anti-HNA-1a and 256-fold for anti-HNA-1b; the limits of MAIGA-T, MAIGA-N, and LABM were 32-, 4 ~ 64-, and 128-fold for anti-HNA-1a and 64-, 16 ~ 64-, and 32-fold for anti-HNA-1b, respectively. Twelve and 7 of the remaining 26 samples tested negative and positive, respectively, in both ICFA-T and MAIGA-N. Antibody specificity against HNA-1a or HNA-1b determined using ICFA-T agreed with that determined using MAIGA-N and LABM. Another seven samples tested positive in ICFA-T but negative in MAIGA-N. CONCLUSION The novel ICFA is highly sensitive and exhibits specificity similar to MAIGA and LABM for detecting HNA-1 antibodies.
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Affiliation(s)
- Hiromi Kamada
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Daisuke Takahashi
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Marie Shimizu
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Miyuki Uchida
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Yoshihisa Watanabe
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | | | - Shigeki Miyata
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Masahiro Satake
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
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Takahashi D, Soga K, Kikuchi T, Kutsuno T, Hao P, Sasaki K, Nishiyama Y, Kidokoro S, Sampathkumar A, Bacic A, Johnson KL, Kotake T. Structural changes in cell wall pectic polymers contribute to freezing tolerance induced by cold acclimation in plants. Curr Biol 2024; 34:958-968.e5. [PMID: 38335960 DOI: 10.1016/j.cub.2024.01.045] [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: 07/17/2023] [Revised: 12/20/2023] [Accepted: 01/17/2024] [Indexed: 02/12/2024]
Abstract
Subzero temperatures are often lethal to plants. Many temperate herbaceous plants have a cold acclimation mechanism that allows them to sense a drop in temperature and prepare for freezing stress through accumulation of soluble sugars and cryoprotective proteins. As ice formation primarily occurs in the apoplast (the cell wall space), cell wall functional properties are important for plant freezing tolerance. Although previous studies have shown that the amounts of constituent sugars of the cell wall, in particular those of pectic polysaccharides, are altered by cold acclimation, the significance of this change during cold acclimation has not been clarified. We found that β-1,4-galactan, which forms neutral side chains of the acidic pectic rhamnogalacturonan-I, accumulates in the cell walls of Arabidopsis and various freezing-tolerant vegetables during cold acclimation. The gals1 gals2 gals3 triple mutant, which has reduced β-1,4-galactan in the cell wall, exhibited impaired freezing tolerance compared with wild-type Arabidopsis during initial stages of cold acclimation. Expression of genes involved in the galactan biosynthesis pathway, such as galactan synthases and UDP-glucose 4-epimerases, was induced during cold acclimation in Arabidopsis, explaining the galactan accumulation. Cold acclimation resulted in a decrease in extensibility and an increase in rigidity of the cell wall in the wild type, whereas these changes were not observed in the gals1 gals2 gals3 triple mutant. These results indicate that the accumulation of pectic β-1,4-galactan contributes to acquired freezing tolerance by cold acclimation, likely via changes in cell wall mechanical properties.
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Affiliation(s)
- Daisuke Takahashi
- Graduate School of Science & Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan.
| | - Kouichi Soga
- Graduate School of Science, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Takuma Kikuchi
- Graduate School of Science & Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Tatsuya Kutsuno
- Graduate School of Science & Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Pengfei Hao
- La Trobe Institute for Sustainable Agriculture and Food, La Trobe University, Bundoora, VIC 3086, Australia
| | - Kazuma Sasaki
- Graduate School of Science & Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Yui Nishiyama
- Department of Biochemistry & Molecular Biology, Faculty of Science, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Satoshi Kidokoro
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuda-cho, Midori-ku, Yokohama 226-8503, Japan
| | - Arun Sampathkumar
- Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam-Golm, Germany
| | - Antony Bacic
- La Trobe Institute for Sustainable Agriculture and Food, La Trobe University, Bundoora, VIC 3086, Australia
| | - Kim L Johnson
- La Trobe Institute for Sustainable Agriculture and Food, La Trobe University, Bundoora, VIC 3086, Australia
| | - Toshihisa Kotake
- Graduate School of Science & Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
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Shiiya N, Washiyama N, Takahashi D, Tsuda K, Ohashi Y, Natsume K. Internal circular suture annuloplasty for aortic valve repair. Gen Thorac Cardiovasc Surg 2024; 72:202-205. [PMID: 37882902 DOI: 10.1007/s11748-023-01981-0] [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] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/05/2023] [Indexed: 10/27/2023]
Abstract
Stabilizing the aorto-ventricular junction is integral in aortic valve repair. We report our technique of internal circular suture annuloplasty. We used a continuous horizontal mattress suture of a single thick expanded polytetrafluoroethylene suture (CV-3). We put 4 stitches per sinus, so the suture was below the cusp attachment line at the nadirs and passed through the interleaflet triangle at the upper aorto-ventricular junction level. The suture was reinforced with pericardial pledgets on both sides of each commissure. We used this technique in 12 patients. The diameter of aorto-ventricular junction was reduced from 25 ± 2 mm to 22 ± 1 mm (n = 11) and was 22 ± 1 mm at the latest follow-up (4-74 months, median 41, n = 10). In 2 patients with large aorto-ventricular junction (27 mm or more), expected annular reduction was not achieved. Our modified technique is simple and seems durable. It may be useful for mild annular dilatation.
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Affiliation(s)
- Norihiko Shiiya
- First Department of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan.
| | - Naoki Washiyama
- First Department of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Daisuke Takahashi
- First Department of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Kazumasa Tsuda
- First Department of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Yuko Ohashi
- First Department of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Kayoko Natsume
- First Department of Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
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Saiki R, Katayama K, Saiki H, Fukumori A, Tsujimoto K, Yamawaki M, Tanaka F, Takahashi D, Oda K, Suzuki Y, Murata T, Dohi K. Nephrotic syndrome with acute kidney injury due to combination therapy of immune checkpoint inhibitors: a case report and review of the literature. BMC Nephrol 2024; 25:51. [PMID: 38336610 PMCID: PMC10858463 DOI: 10.1186/s12882-024-03494-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 02/06/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Recent studies have focused on immune checkpoint inhibitors. Renal complications associated with the use of immune checkpoint inhibitors are uncommon compared with other immune-related adverse events. Acute interstitial nephritis accounts for most of these renal complications, with nephrotic syndrome quite rare. We herein report a case of nephrotic syndrome associated with immune checkpoint inhibitors that was more severe than that in previous cases. By comparing this case with previous reports, the possible reasons for the particular severity of this case are discussed. CASE PRESENTATION A 75-year-old man developed nephrotic syndrome with acute kidney injury after the first combination therapy of nivolumab and ipilimumab for malignant pleural mesothelioma. The results of a kidney biopsy indicated minimal change disease with mild atherosclerosis, acute interstitial nephritis, and fusion of nearly all podocyte foot processes. Nivolumab and ipilimumab therapy were stopped, and treatment with corticosteroids was initiated. We investigated previously reported cases of nephrotic syndrome using immune checkpoint inhibitors. Seventeen cases of immune checkpoint inhibitor-related nephrotic syndrome, including ours, have been reported. Two of the 17 patients with immune checkpoint inhibitor-related nephrotic syndrome required hemodialysis treatment for acute kidney injury. Unlike many previously reported cases, the present patient was administered two different immune checkpoint inhibitors, which may be one of the reasons for the development of severe nephrotic syndrome. CONCLUSIONS In addition to previously reported risk factors, immune checkpoint inhibitor combination therapy can exacerbate nephrotic syndrome compared to immune checkpoint inhibitor monotherapy.
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Affiliation(s)
- Ryosuke Saiki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan.
| | - Kan Katayama
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Haruko Saiki
- Department of Pulmonary and Critical Care Medicine, Faculty and Graduate School of Medicine, Mie University, Tsu, Japan
| | - Ayumi Fukumori
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Kayo Tsujimoto
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Masahiro Yamawaki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Fumika Tanaka
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Daisuke Takahashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Keiko Oda
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Yasuo Suzuki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Tomohiro Murata
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
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Kawano T, Gon Y, Sakaguchi M, Yamagami H, Abe S, Hashimoto H, Ohara N, Takahashi D, Abe Y, Takahashi T, Okazaki S, Todo K, Mochizuki H, Sasaki T. Von Willebrand Factor Antigen Levels Predict Poor Outcomes in Patients With Stroke and Cancer: Findings From the Multicenter, Prospective, Observational SCAN Study. J Am Heart Assoc 2024; 13:e032284. [PMID: 38240254 DOI: 10.1161/jaha.123.032284] [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: 08/27/2023] [Accepted: 12/20/2023] [Indexed: 02/07/2024]
Abstract
BACKGROUND Patients with acute ischemic stroke and active cancer have more severe neurological symptoms, elevated risks of stroke recurrence, and death compared with the general population. We examined whether von Willebrand factor (vWF) antigen levels at stroke onset were associated with the poor outcomes of patients with stroke and cancer. METHODS AND RESULTS Using data from 90 patients with acute ischemic stroke and active cancer who were registered in the SCAN (Ischemic Stroke in Patients With Cancer and Neoplasia) study, a prospective multicenter, observational study in Japan, we divided patients into 2 groups according to their median vWF antigen levels (high, n=46; or low, n=44). The high-vWF group had a significantly higher initial National Institutes of Health Stroke Scale score (median, 7 [interquartile range, 3-11.25] versus 3 [interquartile range, 1-8.5]; P<0.05) and a significantly higher incidence of cryptogenic stroke (32 [70%] versus 16 [36%]; P<0.01) and venous thromboembolism (7 [15%] versus 0 [0%]; P<0.01), as well as multiple lesions (28 [62%] versus 12 [27%]; P<0.001), than the low-vWF group. We observed no significant difference in the rate of stroke recurrence within 1 year between the groups. However, increased vWF levels were an independent predictor of death within 1 year of stroke onset, after adjusting for potential confounders (odds ratio, 6.77 [95% CI, 1.49-30.78]; P<0.05). CONCLUSIONS Elevated vWF antigen levels were associated with adverse outcomes in patients with cancer-associated stroke and may represent a useful biomarker to guide future therapeutic interventions.
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Affiliation(s)
- Tomohiro Kawano
- Department of Neurology Osaka University Graduate School of Medicine Osaka Japan
| | - Yasufumi Gon
- Department of Neurology Osaka University Graduate School of Medicine Osaka Japan
| | - Manabu Sakaguchi
- Department of Neurology Osaka University Graduate School of Medicine Osaka Japan
- Department of Neurology Osaka General Medical Center Osaka Japan
| | - Hiroshi Yamagami
- Department of Neurology National Hospital Organization Osaka National Hospital Osaka Japan
| | - Soichiro Abe
- Department of Neurology National Cerebral and Cardiovascular Center Osaka Japan
| | | | - Nobuyuki Ohara
- Department of Neurology Kobe City Medical Center General Hospital Kobe Hyogo Japan
| | - Daisuke Takahashi
- Department of Neurology National Hospital Organization Osaka Minami Medical Center Osaka Japan
| | - Yuko Abe
- Department of Neurology Yodogawa Christian Hospital Osaka Japan
| | | | - Shuhei Okazaki
- Department of Neurology Osaka University Graduate School of Medicine Osaka Japan
| | - Kenichi Todo
- Department of Neurology Osaka University Graduate School of Medicine Osaka Japan
| | - Hideki Mochizuki
- Department of Neurology Osaka University Graduate School of Medicine Osaka Japan
| | - Tsutomu Sasaki
- Department of Neurology Osaka University Graduate School of Medicine Osaka Japan
- StemRIM Institute of Regeneration-Inducing Medicine Osaka University Osaka Japan
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12
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Tada S, Kaito Y, Watanabe A, Sugiyama Y, Nishigaichi A, Miwa T, Watanabe K, Hazama T, Takahashi D. Varicella-Zoster Meningitis and Myelitis After Herpes Zoster Dermatitis Treatment With Amenamevir: A Case Series and Literature Review. Cureus 2024; 16:e54775. [PMID: 38524092 PMCID: PMC10961168 DOI: 10.7759/cureus.54775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2024] [Indexed: 03/26/2024] Open
Abstract
Varicella-zoster virus (VZV), known for causing chickenpox, establishes latent infections in neural tissues. Reactivation of VZV can lead to herpes zoster (HZ) and various neurological complications. In this report, we present four cases of VZV meningitis and myelitis following amenamevir treatment for HZ dermatitis with positive VZV DNA in cerebrospinal fluid (CSF) revealed by polymerase chain reaction (PCR). Three of them were considered immunocompromised hosts given the fact that two of these patients were taking immunosuppressive drugs for rheumatoid arthritis, and one patient had a history of sigmoid colon cancer (four months after resection). After HZ onset, amenamevir, which has poor CSF transfer, was prescribed for all the patients, and all of them developed central nervous complications by VZV (meningitis in three cases and myelitis in one case) confirmed by PCR. All the patients were treated with acyclovir, which has a higher CSF transfer, and fully recovered. We speculate that amenamevir might have failed to prevent VZV infection in the central nervous system (CNS) and think that consideration should be given to administering acyclovir in preference to amenamevir for ΗΖ patients at high risk of CNS VZV infection, such as immunocompromised hosts.
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Affiliation(s)
- Satoru Tada
- Department of Neurology, Osaka University Graduate School of Medicine, Osaka, JPN
- Department of Neurology, National Hospital Organization Osaka Minami Medical Center, Osaka, JPN
| | - Yuta Kaito
- Department of Neurology, National Hospital Organization Osaka Minami Medical Center, Osaka, JPN
| | - Akihiro Watanabe
- Department of Neurology, National Hospital Organization Osaka Minami Medical Center, Osaka, JPN
| | - Yukio Sugiyama
- Department of Neurology, National Hospital Organization Osaka Minami Medical Center, Osaka, JPN
| | - Akira Nishigaichi
- Department of Rheumatology, National Hospital Organization Osaka Minami Medical Center, Osaka, JPN
| | - Takashi Miwa
- Department of Neurology, National Hospital Organization Osaka Minami Medical Center, Osaka, JPN
| | - Kotaro Watanabe
- Department of Neurology, National Hospital Organization Osaka Minami Medical Center, Osaka, JPN
| | - Takanori Hazama
- Department of Neurology, National Hospital Organization Osaka Minami Medical Center, Osaka, JPN
| | - Daisuke Takahashi
- Department of Neurology, National Hospital Organization Osaka Minami Medical Center, Osaka, JPN
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Shimizu T, Miyazaki T, Yokota S, Ishizu H, Takahashi D, Iwasaki N. Effect of longer femoral head on leg length, offset, and range of motion in total hip arthroplasty: a simulation study. Sci Rep 2024; 14:1829. [PMID: 38246928 PMCID: PMC10800334 DOI: 10.1038/s41598-024-52264-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 01/16/2024] [Indexed: 01/23/2024] Open
Abstract
In this study, we investigated the relationship between head length, leg length, offset, and dislocation resistance using range of motion (ROM) simulations based on computed tomography data to examine if a longer femoral head reduces the risk of dislocation. The femoral components were set to eliminate leg length differences with a + 0 mm head, and variations for + 4-, + 7-, and + 8-mm heads were analyzed. Offset and ROM were assessed when longer heads were used, with the leg length adjusted to be similar to that of the contralateral side. While internal rotation at flexion and external rotation at extension increased with + 4-mm longer heads, the + 7- and + 8-mm heads did not increase dislocation resistance. When adjusting for leg length, the longer heads showed no significant differences in offset and ROM. Enhancing dislocation resistance by solely increasing the offset with a longer head, while simultaneously adjusting the depth of stem insertion, may be a beneficial intraoperative technique. Although a + 4-mm longer head possibly increases ROM without impingement, heads extended by + 7 or + 8 mm may not exhibit the same advantage. Therefore, surgeons should consider this technique based on the implant design.
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Affiliation(s)
- Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan.
| | - Takuji Miyazaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Shunichi Yokota
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Hotaka Ishizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
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14
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Takahashi D, Shiiya N, Washiyama N, Tsuda K, Ohashi Y, Natsume K, Hirano M, Takeuchi Y. [Long-term Outcomes of the Maze Procedure Omitting the Ablation Line to The Superior Vena Cava]. Kyobu Geka 2024; 77:22-26. [PMID: 38459841] [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: 03/11/2024]
Abstract
OBJECTIVE In an effort to avoid postoperative sick sinus syndrome( SSS), we omit the ablation line to the superior vena cava( SVC) in the Cox-mazeⅢ lesion set. We report the long-term outcomes, including the freedom from SSS. METHODS We studied 102 patients who underwent bi-atrial maze procedure for persistent atrial fibrillation (Af) from 2009 through 2023. Bipolar radio frequency ablation or cryoablation was used except for right-side atriotomy and right atriotomy. Cryoablation was used for atrioventricular annulus. The patient age was 68±9.4. Duration of Af was 3.4±6.5 years (unknown 9 cases). The amplitude of f-wave in V1 was 0.182±0.095 mV and it was<0.1 mV in 19 (18.6%). Diameter of the left atrium was 50±8.9 mm, and left atrial volume index was 89±37 ml/m2. Ninety-one (89.2%) patients underwent concomitant mitral valve surgery. RESULTS Survival rate was 99% at 1 year and 96% at 5 years. Freedom from Af was 92% at 1 year and 88% at 5 years. Freedom from permanent pacemaker implantation (PPI) was 87% at 1 year and 83% at 5 years. CONCLUSIONS Defibrillation rate and the incidence of PPI was comparable to those in previous reports after standard Cox-mazeⅢ. SSS after maze for persistent Af seem due to patient.
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Takahashi D, Toshima K. Total Synthesis of Mannosylerythritol Lipids and Structure-Function Relationship Studies. J Oleo Sci 2024; 73:539-546. [PMID: 38556287 DOI: 10.5650/jos.ess23222] [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] [Indexed: 04/02/2024] Open
Abstract
Mannosylerythritol lipid (MEL) has attracted much attention as an environmentally benign and biocompatible material in many research fields due to its significant biochemical and physiological properties. However, heterogeneity always exists in MEL obtained from microbial products with respect to the chain length of the fatty acids. In this context, the total synthesis of the 20 members of MEL was effectively and stereoselectively achieved using our boron-mediated aglycon delivery (BMAD) method. In addition, structure-function relationship (SFR) studies of antibacterial activity, self-assembling properties, and recovery effects on damaged skin cells have been conducted, and these results are introduced in this mini-review article.
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Affiliation(s)
- Daisuke Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Kazunobu Toshima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
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16
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Kizawa F, Suzuki D, Nagoya S, Kanaizumi A, Shimizu T, Irie T, Takahashi D, Iwasaki N. Joint instability in patients with borderline developmental dysplasia of the hip. Clin Biomech (Bristol, Avon) 2024; 111:106136. [PMID: 38065038 DOI: 10.1016/j.clinbiomech.2023.106136] [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: 06/05/2022] [Revised: 10/08/2023] [Accepted: 10/27/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND The treatment strategy for developmental dysplasia of the hip is determined based on the lateral center-edge angle. Nonetheless, an evaluation of joint instability may be important in determining the treatment strategy. This study classified the displacement patterns of the femoral head center during hip abduction. METHODS Ten patients with borderline developmental dysplasia of the hip, 10 patients with developmental dysplasia of the hip, and 10 patients with normal hips were analyzed. Image matching was performed using X-ray images of hip abduction with a three-dimensional hip model. The displacement of the femoral head center and its trajectory length were measured. A cluster analysis was conducted to classify the displacement pattern of the femoral head center, and trajectory lengths were compared. FINDINGS Displacement was classified into three patterns: medialization, hinge abduction, and centering. Patients with borderline developmental hip dysplasia exhibited all three patterns. Almost all patients with developmental dysplasia of the hip showed medialization and hinge abduction, whereas all normal patients had the centering type. The mean trajectory length indices for the medialization and hinge abduction types were significantly longer than those for the centering type (P = 0.01 and P = 0.016, respectively). INTERPRETATION Borderline developmental dysplasia of the hip is a heterogeneous condition characterized by varying hip instability levels. Our findings suggest that uniform evaluation based on the lateral center-edge angle is inappropriate and that joint instability must be evaluated in each patient with borderline developmental dysplasia of the hip.
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Affiliation(s)
- Fumiya Kizawa
- Division of Rehabilitation, Hokkaido University Hospital, Kita-14, Nishi-5, Kita-ku, Sapporo 060-8648, Japan; Department of Musculoskeletal Biomechanics and Surgical Development, Sapporo Medical University, Minami-1, Nishi-17, Chuo-ku, Sapporo 060-8556, Japan.
| | - Daisuke Suzuki
- Department of Musculoskeletal Biomechanics and Surgical Development, Sapporo Medical University, Minami-1, Nishi-17, Chuo-ku, Sapporo 060-8556, Japan; Department of Health Sciences, Hokkaido Chitose College of Rehabilitation, Satomi 2-10, Chitose 066-0055, Japan.
| | - Satoshi Nagoya
- Department of Musculoskeletal Biomechanics and Surgical Development, Sapporo Medical University, Minami-1, Nishi-17, Chuo-ku, Sapporo 060-8556, Japan.
| | - Arata Kanaizumi
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Minami-1, Nishi-17, Chuo-ku, Sapporo 060-8556, Japan
| | - Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan.
| | - Tohru Irie
- Department of Orthopaedic Surgery, Faculty of Medicine, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan.
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan.
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Miyamoto N, Ueno Y, Yamashiro K, Hira K, Kijima C, Kitora N, Iwao Y, Okuda K, Mishima S, Takahashi D, Ono K, Asari M, Miyazaki K, Hattori N. Stroke classification and treatment support system artificial intelligence for usefulness of stroke diagnosis. Front Neurol 2023; 14:1295642. [PMID: 38156087 PMCID: PMC10753815 DOI: 10.3389/fneur.2023.1295642] [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: 09/17/2023] [Accepted: 12/01/2023] [Indexed: 12/30/2023] Open
Abstract
Background and aims It is important to diagnose cerebral infarction at an early stage and select an appropriate treatment method. The number of stroke-trained physicians is unevenly distributed; thus, a shortage of specialists is a major problem in some regions. In this retrospective design study, we tested whether an artificial intelligence (AI) we built using computer-aided detection/diagnosis may help medical physicians to classify stroke for the appropriate treatment. Methods To build the Stroke Classification and Treatment Support System AI, the clinical data of 231 hospitalized patients with ischemic stroke from January 2016 to December 2017 were used for training the AI. To verify the diagnostic accuracy, 151 patients who were admitted for stroke between January 2018 and December 2018 were also enrolled. Results By utilizing multimodal data, such as DWI and ADC map images, as well as patient examination data, we were able to construct an AI that can explain the analysis results with a small amount of training data. Furthermore, the AI was able to classify with high accuracy (Cohort 1, evaluation data 88.7%; Cohort 2, validation data 86.1%). Conclusion In recent years, the treatment options for cerebral infarction have increased in number and complexity, making it even more important to provide appropriate treatment according to the initial diagnosis. This system could be used for initial treatment to automatically diagnose and classify strokes in hospitals where stroke-trained physicians are not available and improve the prognosis of cerebral infarction.
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Affiliation(s)
- Nobukazu Miyamoto
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - Yuji Ueno
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - Kazuo Yamashiro
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - Kenichiro Hira
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - Chikage Kijima
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | | | | | | | | | | | - Kazuto Ono
- Ohara Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Mika Asari
- PARKINSON Laboratories Co., Ltd., Tokyo, Japan
| | | | - Nobutaka Hattori
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
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18
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Li S, Toriumi H, Takahashi D, Kamasaki T, Fujioka Y, Nagatoishi S, Li J, Liu Y, Hosokawa T, Tsumoto K, Ohba Y, Katayama Y, Murakami D, Hase K, Mori T. Safe and efficient oral allergy immunotherapy using one-pot-prepared mannan-coated allergen nanoparticles. Biomaterials 2023; 303:122381. [PMID: 37935073 DOI: 10.1016/j.biomaterials.2023.122381] [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: 03/07/2023] [Revised: 08/16/2023] [Accepted: 10/27/2023] [Indexed: 11/09/2023]
Abstract
Allergen immunotherapy (AIT) is the only curative treatment for allergic diseases. However, AIT has many disadvantages related to efficiency, safety, long-term duration, and patient compliance. Dendritic cells (DCs) have an important role in antigen-specific tolerance induction; thus, DC-targeting strategies to treat allergies such as glutaraldehyde crosslinked antigen to mannoprotein (MAN) have been established. However, glutaraldehyde crosslinking may reduce the antigen presentation efficiency of DCs. To overcome this, we developed a MAN-coated ovalbumin (OVA) nanoparticle (MDO), which uses intermolecular disulfide bond to crosslink OVA and MAN. MDO effectively targeted DCs resulting in tolerogenic DCs, and promoted higher antigen presentation efficiency by DCs compared with OVA or glutaraldehyde crosslinked nanoparticles. In vitro and in vivo experiments showed that DCs exposed to MDO induced Treg cells. Moreover, MDO had low reactivity with anti-OVA antibodies and did not induce anaphylaxis in allergic mice, demonstrating its high safety profile. In a mouse model of allergic asthma, MDO had significant preventative and therapeutic effects when administered orally or subcutaneously. Therefore, MDO represents a promising new approach for the efficient and safe treatment of allergies.
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Affiliation(s)
- Shunyi Li
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Hiroki Toriumi
- Division of Biochemistry, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, 105-8512, Japan
| | - Daisuke Takahashi
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, 105-8512, Japan
| | - Tomoko Kamasaki
- Department of Cell Physiology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Yoichiro Fujioka
- Department of Cell Physiology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Satoru Nagatoishi
- The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan; Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Jinting Li
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yiwei Liu
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Takanatsu Hosokawa
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kouhei Tsumoto
- The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan; Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Yusuke Ohba
- Department of Cell Physiology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Yoshiki Katayama
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan; Center for Future Chemistry, Kyushu University, Fukuoka, 819-0395, Japan; International Research Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan; Centre for Advanced Medicine Innovation, Kyushu University, Fukuoka, 812-8582, Japan; Department of Biomedical Engineering, Chung Yuan Christian University, Chung Li, 32023, Taiwan.
| | - Daisuke Murakami
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan.
| | - Koji Hase
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, 105-8512, Japan; The Institute of Fermentation Sciences (IFeS), Faculty of Food and Agricultural Sciences, Fukushima University, Kanayagawa, Fukushima, 960-1296, Japan; International Research and Development Centre for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo (IMSUT), Tokyo, 108-8639, Japan.
| | - Takeshi Mori
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan; Center for Future Chemistry, Kyushu University, Fukuoka, 819-0395, Japan.
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Watanabe-Okochi N, Sato A, Okuyama A, Tomiyoshi G, Suzuki Y, Watanabe Y, Kitsukawa K, Anazawa M, Shimoyamada T, Takahashi D, Onodera T, Uchikawa M, Tsuno NH, Muroi K. A novel reagent for the screening of haptoglobin-deficient blood donors. Vox Sang 2023; 118:1109-1114. [PMID: 37798623 DOI: 10.1111/vox.13543] [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: 08/04/2023] [Revised: 09/05/2023] [Accepted: 09/17/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND AND OBJECTIVES In Japan, the prevalence of haptoglobin deficiency is approximately 1 in 4000. Haptoglobin-deficient individuals may produce anti-haptoglobin from allo-immunization, leading to serious transfusion reactions. Therefore, implementation of a consistent supply of haptoglobin-deficient fresh frozen plasma is crucial. We developed a novel reagent to facilitate large-scale identification of haptoglobin-deficient individuals as potential donors of plasma products. MATERIALS AND METHODS We established mouse monoclonal anti-haptoglobin-producing cell lines (three clones) using the hybridoma method by immunizing mice with the haptoglobin protein. Purified antibodies were conjugated with carboxylate-modified polystyrene latex beads and used for haptoglobin measurements by the latex agglutination method using an automatic analyser (LABOSPECT008). Samples with low protein concentrations were re-examined by enzyme-linked immunosorbent assay to confirm the results. Additionally, the haptoglobin gene was amplified by polymerase chain reaction to confirm the haptoglobin deletion allele (Hpdel ). RESULTS From February to October 2022, 7476 blood donor samples were screened. Two haptoglobin-deficient and 21 low-haptoglobin-expressing individuals were identified. Two haptoglobin-deficient donors were found homozygous for Hpdel , and 19 (90%) of the 21 low-haptoglobin-expressing individuals were heterozygous for Hpdel , which includes the first reported case of heterozygous Hpdel /HpJohnson . CONCLUSION We developed a new reagent for the detection of haptoglobin deficiency, which is automatable and inexpensive and appears useful for large-scale screening of blood donors.
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Affiliation(s)
| | - Ayaka Sato
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
| | | | | | - Yumi Suzuki
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
| | - Yukiko Watanabe
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
| | - Kaori Kitsukawa
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
| | - Masako Anazawa
- Central Blood Institute, Japanese Red Cross Society, Tokyo, Japan
| | | | | | - Takayuki Onodera
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
| | - Makoto Uchikawa
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
| | | | - Kazuo Muroi
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
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Ames P, Baal N, Speckmann M, Michel G, Ratke J, Klesser C, Cooper N, Takahashi D, Bayat B, Bein G, Santoso S. In vitro analysis of anti-HPA-1a dependent platelet phagocytosis and its inhibition using a new whole blood phagocytosis assay (WHOPPA). Front Immunol 2023; 14:1283704. [PMID: 38077345 PMCID: PMC10702767 DOI: 10.3389/fimmu.2023.1283704] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/30/2023] [Indexed: 12/18/2023] Open
Abstract
Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a serious bleeding condition mostly caused by the reaction between maternal anti-HPA-1a antibodies and fetal platelets. This reaction leads to Fc-dependent platelet phagocytosis. Although several serological methods have been developed to identify maternal antibodies, a reliable laboratory parameter as a prognostic tool for FNAIT severity is still lacking. In this study, we developed whole blood platelet phagocytosis assay (WHOPPA), a flow cytometry-based phagocytosis assay that uses a pH-sensitive fluorescent dye (pHrodo-SE) to analyze anti-HPA-1a-dependent platelet phagocytosis in whole blood. WHOPPA revealed a high phagocytosis rate for the anti-HPA-1a opsonized platelets by monocytes but not by neutrophils. Analysis of different monocyte populations showed that all monocyte subsets, including classical (CD14++CD16-), intermediate (CD14++CD16+), and nonclassical (CD14+CD16++) monocytes, were able to engulf opsonized platelets. A unique monocyte subset, termed shifted monocytes (CD14+CD16-), showed the highest phagocytosis rate and was detected after platelet engulfment. FcγR inhibition tests revealed that except for FcγRIIa, FcγRI and FcγRIII on monocytes were responsible for the phagocytosis of anti-HPA-1a opsonized platelets. Analysis of anti-HPA-1a antibodies from FNAIT cases (n = 7) showed the phagocytosis of HPA-1aa but not of HPA-1bb platelets by monocytes. The phagocytosis rate was highly correlated with bound antibodies measured by flow cytometry (p < 0001; r = 0.9214) and MAIPA assay (p < 0.001; r = 0.7692). The phagocytosis rates were equal for type I and II anti-HPA-1a antibodies recognizing the plexin-semaphoring-integrin (PSI) domain and PSI/epidermal growth factor 1 domain of β3 integrin, respectively. By contrast, type III anti-HPA-1a antibodies reacting with αvβ3 integrin did not induce platelet phagocytosis. Furthermore, effector-silenced mAbs against HPA-1a inhibited the phagocytosis of anti-HPA-1a opsonized platelets. In conclusion, WHOPPA is a reliable in vitro platelet phagocytosis assay that mimics the phagocytosis of anti-HPA-1a opsonized platelets in whole blood. This assay allows to prove platelet phagocytosis ex vivo and evaluate the inhibitory capacity of different inhibitors as therapeutically strategies for the prevention of fetal thrombocytopenia in FNAIT in the future.
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Affiliation(s)
- Paula Ames
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Nelli Baal
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Martin Speckmann
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
- Flow Cytometry Core Facility, Justus Liebig University, Giessen, Germany
| | - Gabriela Michel
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Judith Ratke
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Christina Klesser
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Nina Cooper
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | | | - Behnaz Bayat
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Sentot Santoso
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
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Inaba K, Naito Y, Tachibana M, Toshima K, Takahashi D. Regioselective and Stereospecific β-Arabinofuranosylation by Boron-Mediated Aglycon Delivery. Angew Chem Int Ed Engl 2023; 62:e202307015. [PMID: 37394576 DOI: 10.1002/anie.202307015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/27/2023] [Accepted: 06/30/2023] [Indexed: 07/04/2023]
Abstract
Regio- and stereoselective formation of the 1,2-cis-furanosidic linkage has been in great demand for efficient synthesis of biologically active natural glycosides. In this study, we developed a regioselective and β-stereospecific d-/l-arabinofuranosylation promoted by a boronic acid catalyst under mild conditions. The glycosylations proceeded smoothly for a variety of diols, triols, and unprotected sugar acceptors to give the corresponding β-arabinofuranosides (β-Arbf) in high yields with complete β-stereoselectivity and high regioselectivity. The regioselectivity was completely reversed depending on the optical isomerism of the donor used and was predictable a priori using predictive models. Mechanistic studies based on DFT calculations revealed that the present glycosylation occurs through a highly dissociative concerted SN i mechanism. The usefulness of the glycosylation method was demonstrated by the chemical synthesis of trisaccharide structures of arabinogalactan fragments.
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Affiliation(s)
- Kazuki Inaba
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Yuna Naito
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Mina Tachibana
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Kazunobu Toshima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Daisuke Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
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Hattori-Muroi K, Naganawa-Asaoka H, Kabumoto Y, Tsukamoto K, Fujisaki Y, Fujimura Y, Komiyama S, Kinashi Y, Kato M, Sato S, Takahashi D, Hase K. α-Glucosidase inhibitors boost gut immunity by inducing IgA responses in Peyer's patches. Front Immunol 2023; 14:1277637. [PMID: 38022673 PMCID: PMC10646501 DOI: 10.3389/fimmu.2023.1277637] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Peyer's patches (PPs) are specialized gut-associated lymphoid tissues that initiate follicular helper T (Tfh)-mediated immunoglobulin A (IgA) response to luminal antigens derived from commensal symbionts, pathobionts, and dietary sources. IgA-producing B cells migrate from PPs to the small intestinal lamina propria and secrete IgA across the epithelium, modulating the ecological balance of the commensal microbiota and neutralizing pathogenic microorganisms. α-glucosidase inhibitors (α-GIs) are antidiabetic drugs that inhibit carbohydrate digestion in the small intestinal epithelium, leading to alterations in the commensal microbiota composition and metabolic activity. The commensal microbiota and IgA responses exhibit bidirectional interactions that modulate intestinal homeostasis and immunity. However, the effect of α-GIs on the intestinal IgA response remains unclear. We investigated whether α-GIs affect IgA responses by administering voglibose and acarbose to mice via drinking water. We analyzed Tfh cells, germinal center (GC) B cells, and IgA-producing B cells in PPs by flow cytometry. We also assessed pathogen-specific IgA responses. We discovered that voglibose and acarbose induced Tfh cells, GCB cells, and IgA-producing B cells in the PPs of the proximal small intestine in mice. This effect was attributed to the modification of the microbiota rather than a shortage of monosaccharides. Furthermore, voglibose enhanced secretory IgA (S-IgA) production against attenuated Salmonella Typhimurium. Our findings reveal a novel mechanism by which α-GIs augment antigen-specific IgA responses by stimulating Tfh-GCB responses in PPs, and suggest a potential therapeutic application as an adjuvant for augmenting mucosal vaccines.
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Affiliation(s)
- Kisara Hattori-Muroi
- Division of Biochemistry, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Hanako Naganawa-Asaoka
- Division of Biochemistry, Department of Pharmaceutical Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Yuma Kabumoto
- Division of Biochemistry, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Kei Tsukamoto
- Division of Biochemistry, Department of Pharmaceutical Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Yosuke Fujisaki
- Division of Biochemistry, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Yumiko Fujimura
- Division of Biochemistry, Department of Pharmaceutical Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Seiga Komiyama
- Division of Biochemistry, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Yusuke Kinashi
- Division of Biochemistry, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Miki Kato
- Division of Biochemistry, Department of Pharmaceutical Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Shintaro Sato
- Mucosal Vaccine Project, BIKEN Innovative Vaccine Research Alliance Laboratories, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Department of Microbiology and Immunology, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama, Japan
| | - Daisuke Takahashi
- Division of Biochemistry, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
- Division of Biochemistry, Department of Pharmaceutical Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Koji Hase
- Division of Biochemistry, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
- Division of Biochemistry, Department of Pharmaceutical Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
- The Institute of Fermentation Sciences (IFeS), Faculty of Food and Agricultural Sciences, Fukushima University, Fukushima, Japan
- International Research and Development Center for Mucosal Vaccines, the Institute of Medical Science, The University of Tokyo (IMSUT), Tokyo, Japan
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Okuyama S, Sumi M, Ishikawa R, Shishido T, Koyama D, Ueki T, Takahashi D, Kobayashi H, Kobayashi H, Tsuno NH. Successful allogeneic hematopoietic stem cell transplantation in a patient with type I CD36 deficiency: a case study and literature review. Int J Hematol 2023; 118:656-660. [PMID: 37490235 DOI: 10.1007/s12185-023-03637-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 07/03/2023] [Accepted: 07/06/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND CD36-deficient individuals may produce anti-CD36 antibodies through antigenic exposure to CD36, in situations including blood transfusions. Therefore, allogeneic hematopoietic stem cell transplantation (HSCT) from CD36-positive donors to CD36-negative patients remains a challenge. CASE REPORT A 64-year-old man with acute myeloid leukemia became refractory to platelet transfusions during chemotherapy. Anti-CD36 antibodies without anti-HLA antibodies were detected in serum, and the absence of CD36 expression on platelets and monocytes confirmed type I CD36 deficiency. The patient achieved complete remission, and received maintenance therapy with CD36-negative platelet transfusions. However, he relapsed soon afterward, and thus underwent peripheral blood stem cell transplantation (PBSCT) from a CD36-positive unrelated donor. The anti-CD36 antibody titer had decreased before the transplant, and the PBSCT-course was uneventful. The patient has been well without any complications associated with CD36 status mismatch. DISCUSSION The few reports of allogeneic HSCT in patients with CD36 deficiency have suggested that anti-CD36 antibodies could be involved in several post-transplant complications, such as delayed platelet recovery, transfusion refractoriness, and transfusion-related acute lung injury. Our present case confirmed that stem cell transplantation from CD36-positive donors to negative patients is feasible, when it includes careful prior assessment of anti-CD36 antibody titers and interventions to attenuate them.
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Affiliation(s)
- Shuhei Okuyama
- Department of Hematology, Nagano Red Cross Hospital, Nagano, Japan.
- Department of Hematology, Yamagata Prefectural Central Hospital, 1800 Aoyagi, Yamagata-Shi, Yamagata, 990-2292, Japan.
| | - Masahiko Sumi
- Department of Hematology, Nagano Red Cross Hospital, Nagano, Japan
| | - Ryuto Ishikawa
- Department of Hematology, Nagano Red Cross Hospital, Nagano, Japan
| | - Tsutomu Shishido
- Department of Hematology, Nagano Red Cross Hospital, Nagano, Japan
| | - Daisuke Koyama
- Department of Hematology, Nagano Red Cross Hospital, Nagano, Japan
| | - Toshimitsu Ueki
- Department of Hematology, Nagano Red Cross Hospital, Nagano, Japan
| | - Daisuke Takahashi
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Hironori Kobayashi
- Laboratory Department, Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Tokyo, Japan
| | - Hikaru Kobayashi
- Department of Hematology, Nagano Red Cross Hospital, Nagano, Japan
| | - Nelson Hirokazu Tsuno
- Laboratory Department, Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Tokyo, Japan
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Takahashi D, Katayama K, Iyoda Y, Fukumori A, Tsujimoto K, Yamawaki M, Tanaka F, Saiki R, Oda K, Suzuki Y, Murata T, Okugawa Y, Dohi K. High-flow arteriovenous fistula in X-linked Alport syndrome: a case report. Front Med (Lausanne) 2023; 10:1227283. [PMID: 37928459 PMCID: PMC10620688 DOI: 10.3389/fmed.2023.1227283] [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: 05/23/2023] [Accepted: 09/29/2023] [Indexed: 11/07/2023] Open
Abstract
Most male X-linked Alport syndrome patients with COL4A5 nonsense mutations experience end-stage kidney failure by 30 years old. Although there is no definition of high-flow arteriovenous fistula, access blood flows greater than 2000 mL/min might predict the occurrence of high-output heart failure. A 50-year-old Japanese man had suffered from proteinuria at 4 years old and sensorineural hearing loss and a lenticular lens at 20 years old. He had started to receive hemodialysis treatment due to end-stage kidney disease at 22 years old. A genetic test confirmed a novel hemizygous nonsense variant COL4A5 c.2980G > T (p.Gly994Ter), and he was diagnosed with X-linked Alport syndrome. COL4A5 c.2980G > T was considered "pathogenic" according to the American College of Medical Genetics and Genomics guidelines and in vitro experiments. Shortness of breath on exertion was exaggerated, his brachial artery blood flow was over 4,236-4,353 mL/min, his cardiac output was 5,874 mL/min, and he needed radial artery banding at 51 years old. After radial artery banding surgery, the brachial artery blood flow decreased to 987-1,236 mL/min, and echocardiography showed a cardiac output at 5100 mL/min with improved E' and E/E'. His shortness of breath on exertion improved gradually. Although rare, high-output heart failure due to high-flow arteriovenous fistula should be kept in mind as a complication in X-linked Alport syndrome patients, and our patient was successfully treated with radial artery banding surgery.
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Affiliation(s)
- Daisuke Takahashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kan Katayama
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | | | - Ayumi Fukumori
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kayo Tsujimoto
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masahiro Yamawaki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Fumika Tanaka
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Ryosuke Saiki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Keiko Oda
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yasuo Suzuki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Tomohiro Murata
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | | | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
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Aizawa C, Okabe M, Takahashi D, Sagasaki M, Watanabe M, Fujimoto T, Yoshioka Y, Katsuma A, Kimura A, Miyamoto D, Sato N, Okamoto K, Ichida K, Miyazaki Y, Yokoo T. Possible Use of Non-purine Selective Xanthine Oxidoreductase Inhibitors for Prevention of Exercise-induced Acute Kidney Injury Associated with Renal Hypouricemia. Intern Med 2023; 62:2725-2730. [PMID: 36754409 PMCID: PMC10569912 DOI: 10.2169/internalmedicine.0678-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/18/2022] [Accepted: 01/04/2023] [Indexed: 02/10/2023] Open
Abstract
Exercise-induced acute kidney injury (EIAKI) is frequently complicated with renal hypouricemia (RHUC). In patients with RHUC, limiting anaerobic exercise can prevent EIAKI. However, it is challenging to reduce exercise intensity in athletes. We herein report a 16-year-old Japanese football player with familial RHUC with compound heterozygous mutations in urate transporter 1 (URAT1) who presented with recurrent EIAKI. As prophylaxis (hydration during exercise) could not prevent EIAKI, febuxostat was initiated. EIAKI was not observed for 16 months despite exercising intensively. Hence, non-purine-selective xanthine oxidoreductase inhibitors may decrease the incidence of EIAKI in athletes with RHUC.
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Affiliation(s)
- Chiharu Aizawa
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Japan
| | | | - Makoto Sagasaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Department of Nephrology and Hypertension, Atsugi City Hospital, Japan
| | - Mao Watanabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Japan
| | - Toshinari Fujimoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Japan
| | - Yuuki Yoshioka
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Japan
| | - Ai Katsuma
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Japan
| | - Ai Kimura
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Japan
| | - Daisuke Miyamoto
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School, Japan
| | - Nana Sato
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
| | - Ken Okamoto
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
| | - Kimiyoshi Ichida
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Department of Pathophysiology, Faculty of Pharmaceutical Sciences, Tokyo University of Pharmacy and Life Sciences, Japan
| | - Yoichi Miyazaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Japan
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Bayat B, Lowack J, Audrain M, Croisille L, Curtis B, Dangerfield R, Esmaeili B, Grabowski C, Keller M, Kim H, Kroll H, Kvanka MM, Kwok J, Moritz E, Nathalang O, Nelson D, Nielsen KR, Pahn G, Poles A, Porcelijn L, Sachs UJ, Schönbacher M, Körmöczi GF, Kupatawintu P, Takahashi D, Uhrynowska M, Flesch B, Fung YL. World human neutrophil antigens investigation survey. Vox Sang 2023; 118:763-774. [PMID: 37608544 DOI: 10.1111/vox.13500] [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] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/04/2023] [Accepted: 07/10/2023] [Indexed: 08/24/2023]
Abstract
BACKGROUND AND OBJECTIVES Human neutrophil antigens (HNAs) are categorized into five systems: HNA-1 to HNA-5. Given the importance of neutrophils in immunity, we sought to create awareness of the role of HNA diagnostic services in managing immune neutropenia and transfusion-related acute lung injury. To provide health communities all around the world with access to these services, we conducted a survey to create a directory of these HNA diagnostic services. MATERIALS AND METHODS An Excel table-based survey was created to capture information on the laboratory's location and was emailed to 55 individuals with known or possible HNA investigation activity. The collected data were then summarized and analysed. RESULTS Of contacted laboratories, the surveys were returned from 23 (38.2%) laboratories; 17 have already established HNA diagnostic (of them 12 were regular participants of the International Granulocyte Immunobiology Workshop [ISBT-IGIW]), 4 laboratories were in the process of establishing their HNA investigation and the remaining 2 responder laboratories, did not conduct HNA investigations. In established laboratories, investigation for autoimmune neutropenia (infancies and adults) was the most frequently requested, and antibodies against HNA-1a and HNA-1b were the most commonly detected. CONCLUSION The directory of survey respondents provides a resource for health professionals wanting to access HNA diagnostic services. The present study offers a comprehensive picture of HNA diagnostics (typing and serology), identifying weak points and areas for improvement for the first time. Identifying more laboratories involved in HNA diagnostics with limited access to international societies in the field will globally improve HNA diagnostics.
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Affiliation(s)
- Behnaz Bayat
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Justus-Liebig-University, Gießen, Germany
| | - Jonas Lowack
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Justus-Liebig-University, Gießen, Germany
| | - Marie Audrain
- Service d'Immunologie, Laboratoire de Biologie, Nantes, France
| | | | - Brian Curtis
- Platelet & Neutrophil Immunology Lab, Versiti, Milwaukee, Wisconsin, USA
| | - Rebecca Dangerfield
- American Red Cross Neutrophil Immunology Laboratory, St Paul, Minnesota, USA
| | - Behnaz Esmaeili
- Department of Basic Medical Sciences, Khoy University of Medical Sciences, Khoy, Iran
- Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Claudia Grabowski
- Institut für Transfusionsmedizin Dessau, DRK-Blutspendedienst NSTOB, Dessau, Germany
| | - Margaret Keller
- American Red Cross Neutrophil Immunology Laboratory, St Paul, Minnesota, USA
| | - Hyungsuk Kim
- Seoul National University Hospital, Seoul, South Korea
| | - Hartmut Kroll
- Institut für Transfusionsmedizin Dessau, DRK-Blutspendedienst NSTOB, Dessau, Germany
| | | | - Janette Kwok
- Division of Transplantation and Immunogenetic, Department of Pathology, Queen Mary Hospital, Pok Fu Lam, Hong Kong
| | - Elyse Moritz
- Clinical and Experimental Oncology, Escola Paulista de Medicinia, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - Oytip Nathalang
- Faculty of Allied Health Sciences, Thammasat University, Pathumtani, Thailand
| | - Derrick Nelson
- Specialized Laboratory Services, South African National Blood Service, Johannesburg, South Africa
| | | | - Gail Pahn
- Platelet & Granulocyte Reference Laboratory, Australian Red Cross Lifeblood, Brisbane, Australia
| | - Anthony Poles
- Department of Histocompatibility & Immunogenetics, NHS Blood & Transplant, Bristol, UK
| | - Leendert Porcelijn
- Platelet/Leucocyte Serology Laboratory, Sanquin Diagnostic Services, Amsterdam, The Netherlands
| | - Ulrich J Sachs
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Justus-Liebig-University, Gießen, Germany
| | - Marlies Schönbacher
- Department of Transfusion Medicine and Cell Therapy, Medical University of Vienna, Vienna, Austria
| | - Günther F Körmöczi
- Department of Transfusion Medicine and Cell Therapy, Medical University of Vienna, Vienna, Austria
| | | | | | | | - Brigitte Flesch
- Laboratory for Immunogenetics/HLA, DRK Blutspendedienst West, Bad Kreuznach, Germany
| | - Yoke-Lin Fung
- School of Health, University of the Sunshine Coast, Sunshine Coast, Queensland, Australia
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Yamawaki M, Katayama K, Fujimoto M, Goto H, Yuasa H, Kozuka Y, Mori M, Takahashi D, Saiki R, Hirabayashi Y, Murata T, Yamanaka K, Dohi K. Bullous Pemphigoid in X-linked Alport Syndrome. Intern Med 2023; 62:2375-2379. [PMID: 36543213 PMCID: PMC10484771 DOI: 10.2169/internalmedicine.0972-22] [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: 09/07/2022] [Accepted: 11/13/2022] [Indexed: 12/24/2022] Open
Abstract
Skin lesions in X-linked Alport syndrome (XLAS) are rarely observed. Bullous pemphigoid (BP) is caused by autoantibodies against BP180, also called α1 (XVII) chain, in the basement membrane zone (BMZ). A 48-year-old man with XLAS developed tense blisters. A skin biopsy showed a cleft between the basal cell layer and dermis, with the infiltration of neutrophils and eosinophils. α1 (XVII) staining was positive on the epidermal side of α2/5 (IV) staining. Oral prednisolone improved his symptoms gradually. Abundant tense blisters on the palms and soles might suggest an important role of the α5 (IV) chain in the integrity of BMZ.
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Affiliation(s)
- Masahiro Yamawaki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Japan
| | - Kan Katayama
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Japan
| | - Mika Fujimoto
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Japan
| | - Hiroyuki Goto
- Department of Dermatology, Mie University Graduate School of Medicine, Japan
| | - Hiroto Yuasa
- Department of Pathology, Mie University Hospital, Japan
| | - Yuji Kozuka
- Department of Pathology, Mie University Hospital, Japan
| | - Mutsuki Mori
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Japan
| | - Daisuke Takahashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Japan
| | - Ryosuke Saiki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Japan
| | - Yosuke Hirabayashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Japan
| | - Tomohiro Murata
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Japan
| | - Keiichi Yamanaka
- Department of Dermatology, Mie University Graduate School of Medicine, Japan
| | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Japan
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Tsurusaki T, Sato K, Imai H, Hirai K, Takahashi D, Wada T. Convergent synthesis of phosphorodiamidate morpholino oligonucleotides (PMOs) by the H-phosphonate approach. Sci Rep 2023; 13:12576. [PMID: 37537221 PMCID: PMC10400599 DOI: 10.1038/s41598-023-38698-2] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/13/2023] [Indexed: 08/05/2023] Open
Abstract
Phosphorodiamidate morpholino oligonucleotides (PMOs) are a promising type of antisense oligonucleotides, but their challenging synthesis makes them difficult to access. This research presents an efficient synthetic approach for PMOs using the H-phosphonate approach. The use of phosphonium-type condensing reagents significantly reduced coupling times compared with the current synthetic approach. Furthermore, phosphonium-type condensing reagents facilitated the fragment condensation of PMO, synthesizing up to 8-mer containing all four nucleobases with remarkable coupling efficacy. This is the first report on the convergent synthesis of PMOs. This approach would facilitate the large-scale synthesis of PMOs and accelerate their popularity and accessibility as a next-generation therapy.
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Affiliation(s)
- Taiki Tsurusaki
- Department of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Kazuki Sato
- Department of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Hiroki Imai
- Department of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Kunihiro Hirai
- Research Institute for Bioscience Products and Fine Chemicals, Ajinomoto Co., Inc., 1-1, Suzuki-Cho, Kawasaki, Kanagawa, 210-8681, Japan
| | - Daisuke Takahashi
- Research Institute for Bioscience Products and Fine Chemicals, Ajinomoto Co., Inc., 1-1, Suzuki-Cho, Kawasaki, Kanagawa, 210-8681, Japan
| | - Takeshi Wada
- Department of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.
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Isa K, Takada S, Takeda H, Tsuneyama H, Ogasawara K, Takahashi D, Miyazaki T, Miyata S, Satake M. Two new JK silencing alleles identified by single molecule sequencing with 20-Kb long-reads. Transfusion 2023; 63:1441-1446. [PMID: 37165957 DOI: 10.1111/trf.17397] [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: 12/14/2022] [Revised: 04/18/2023] [Accepted: 04/21/2023] [Indexed: 05/12/2023]
Abstract
BACKGROUND The Kidd blood group gene SLC14A1 (JK) accounts for approximately 20 Kb from initiation codon to stop codon in the genome. In genomic DNA analysis using Sanger sequencing or short-read-based next generation sequencing, it is difficult to determine the cis or trans positions of single nucleotide variations (SNVs), which are occasionally more than 1 Kb away from each other. We aimed to determine the complete nucleotide sequence of a 20-Kb genomic DNA amplicon to characterize the JK allelic variants associated with Kidd antigen silencing in a blood donor. STUDY DESIGN AND METHODS The Jk(a-b-) phenotype was identified in this donor by standard serological typing. A DNA sample obtained from whole blood was amplified by long-range PCR to obtain a 20-Kb fragment of the SLC14A1 gene, including the initiation and stop codons. The fragment was then analyzed by Sanger sequencing and single-molecule sequencing. Transfection and expression studies were performed in CHO cells using the expression vector construct of JK alleles. RESULTS Sanger sequencing and single-molecule sequencing revealed that the donor was heterozygous with JK*01 having c.276G>A (rs763262711, p.Trp92Ter) and JK*02 having c.499A>G (rs2298719, p.Met167Val), c.588A>G (rs2298718, p.Pro196Pro), and c.743C>A (p.Ala248Asp). The two JK alleles identified have not been previously described. Transfection and expression studies indicated that the CHO cells transfected with JK*02 having c.743C>A did not express the Jkb and Jk3 antigens. CONCLUSIONS We identified new JK silencing alleles and their critical SNVs by single-molecule sequencing and the findings were confirmed by transfection and expression studies.
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Affiliation(s)
- Kazumi Isa
- Japanese Red Cross Society, Blood Service Headquarters Central Blood Institute, Tokyo, Japan
| | - Shinnosuke Takada
- Japanese Red Cross Society, Blood Service Headquarters Central Blood Institute, Tokyo, Japan
| | - Hiromi Takeda
- Japanese Red Cross Society, Hokkaido Block Blood Center, Sapporo, Japan
| | - Hatsue Tsuneyama
- Japanese Red Cross Society, Blood Service Headquarters Central Blood Institute, Tokyo, Japan
- Japanese Red Cross Society, Kanto-Koshinetsu Block Blood Center, Tokyo, Japan
| | - Kenichi Ogasawara
- Japanese Red Cross Society, Blood Service Headquarters Central Blood Institute, Tokyo, Japan
| | - Daisuke Takahashi
- Japanese Red Cross Society, Blood Service Headquarters Central Blood Institute, Tokyo, Japan
| | - Toru Miyazaki
- Japanese Red Cross Society, Blood Service Headquarters Central Blood Institute, Tokyo, Japan
| | - Shigeki Miyata
- Japanese Red Cross Society, Blood Service Headquarters Central Blood Institute, Tokyo, Japan
| | - Masahiro Satake
- Japanese Red Cross Society, Blood Service Headquarters Central Blood Institute, Tokyo, Japan
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Gon Y, Sakaguchi M, Yamagami H, Abe S, Hashimoto H, Ohara N, Takahashi D, Abe Y, Takahashi T, Kitano T, Okazaki S, Todo K, Sasaki T, Hattori S, Mochizuki H. Predictors of Survival in Patients With Ischemic Stroke and Active Cancer: A Prospective, Multicenter, Observational Study. J Am Heart Assoc 2023; 12:e029618. [PMID: 37489755 PMCID: PMC10493000 DOI: 10.1161/jaha.123.029618] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 01/25/2023] [Accepted: 06/27/2023] [Indexed: 07/26/2023]
Abstract
Background Limited data exist on the prognostic factors for patients with ischemic stroke and active cancer. Methods and Results We conducted a prospective, multicenter, observational study in Japan, including patients with acute ischemic stroke and active cancer, to investigate the prognostic factors. We followed up the patients for 1 year after stroke onset. The patients were divided into 2 groups according to cryptogenic stroke and known causes (small-vessel occlusion, large-artery atherosclerosis, cardioembolism, and other determined cause), and survival was compared. The hazard ratios (HRs) and 95% CIs for mortality were calculated using Cox regression models. We identified 135 eligible patients (39% women; median age, 75 years). Of these patients, 51% had distant metastasis. A total of 65 (48%) and 70 (52%) patients had cryptogenic stroke and known causes, respectively. Patients with cryptogenic stroke had significantly shorter survival than those with known causes (HR [95% CI], 3.11 [1.82-5.32]). The multivariable Cox regression analysis revealed that distant metastasis, plasma D-dimer levels, venous thromboembolism (either deep venous thrombosis or pulmonary embolism) complications at stroke onset were independent predictors of mortality after adjusting for potential confounders. Cryptogenic stroke was associated with prognosis in univariable analysis but was not significant in multivariable analysis. The plasma D-dimer levels stratified the prognosis of patients with ischemic stroke and active cancer. Conclusions The prognosis of patients with acute ischemic stroke and active cancer varied considerably depending on stroke mechanism, distant metastasis, and coagulation abnormalities. The present study confirmed that coagulation abnormalities were crucial in determining the prognosis of such patients.
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Affiliation(s)
- Yasufumi Gon
- Department of NeurologyOsaka University Graduate School MedicineOsakaJapan
| | - Manabu Sakaguchi
- Department of NeurologyOsaka University Graduate School MedicineOsakaJapan
- Department of NeurologyOsaka General Medical CenterOsakaJapan
| | - Hiroshi Yamagami
- Department of NeurologyNational Hospital Organization Osaka National HospitalOsakaJapan
| | - Soichiro Abe
- Department of NeurologyNational Cerebral and Cardiovascular CenterOsakaJapan
| | | | - Nobuyuki Ohara
- Department of NeurologyKobe City Medical Center General HospitalHyogoJapan
| | - Daisuke Takahashi
- Department of NeurologyNational Hospital Organization Osaka Minami Medical CenterOsakaJapan
| | - Yuko Abe
- Department of NeurologyYodogawa Christian HospitalOsakaJapan
| | | | - Takaya Kitano
- Department of NeurologyOsaka University Graduate School MedicineOsakaJapan
| | - Shuhei Okazaki
- Department of NeurologyOsaka University Graduate School MedicineOsakaJapan
| | - Kenichi Todo
- Department of NeurologyOsaka University Graduate School MedicineOsakaJapan
| | - Tsutomu Sasaki
- Department of NeurologyOsaka University Graduate School MedicineOsakaJapan
| | - Satoshi Hattori
- Department of Integrated Medicine, Biomedical StatisticsOsaka University Graduate School of MedicineOsakaJapan
| | - Hideki Mochizuki
- Department of NeurologyOsaka University Graduate School MedicineOsakaJapan
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Shimizu T, Takahashi D, Suzuki H, Shimizu H, Ogawa T, Yokota S, Ishizu H, Iwasaki N. Validation of parameters recommended for secondary screening for developmental dysplasia of the hip in Japan. J Orthop Sci 2023:S0949-2658(23)00188-4. [PMID: 37451975 DOI: 10.1016/j.jos.2023.06.013] [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: 02/07/2022] [Revised: 06/19/2023] [Accepted: 06/28/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Based on the Japanese Pediatric Orthopaedic Association's guidelines, secondary screening and imaging including ultrasonography and radiography, are recommended in infants with limited hip abduction (<70°) or in those with multiple risk factors including the following: asymmetrical skin creases, a family history of developmental dysplasia of the hip, female sex, and pelvic position at delivery. However, there is still little information regarding the usefulness of this guideline. The objective of this study was to investigate the association between the risk factors and developmental dysplasia of the hip diagnosed using ultrasound and radiography. METHODS A total of 356 infants (67 boys and 289 girls) underwent secondary ultrasonographic and radiological screening for developmental dysplasia of the hip in our hospital. Risk factors were documented from their medical records. The recommended item score, which we defined as an integrated value of the recommended item, was calculated for each patient. The limitation of hip abduction alone was a criterion for secondary screening; therefore, we defined the scores as follows: the limitation of hip abduction scored 2 points and other recommended scores were assigned 1 point. If the recommended item score was 2 points or more, we classified the infants as high-risk. RESULTS A total of 280 of 356 infants were included in the high-risk group, which showed a higher ratio of cases with abnormal imaging findings than the low-risk group. According to the multivariate logistic regression analyses among the recommended items, being female, skin asymmetry, and limb limitation were identified as independent risk factors for imaging abnormality and the need for Pavlik harness treatment. CONCLUSIONS The recommended items for secondary screening based on the Japanese Pediatric Orthopaedic Association's guidelines could be useful for screening infants in need of treatment.
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Affiliation(s)
- Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan.
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Hisataka Suzuki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Hirokazu Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Takuya Ogawa
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Shunichi Yokota
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Hotaka Ishizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
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Miura S, Katayama K, Sugimoto Y, Tanaka F, Mori M, Takahashi D, Saiki R, Hirabayashi Y, Murata T, Tawara I, Dohi K. Discordance of light chain isotypes between serum and glomerular deposits in proliferative glomerulonephritis with monoclonal IgG deposits: a case report and review of the literature. BMC Nephrol 2023; 24:199. [PMID: 37393252 PMCID: PMC10314569 DOI: 10.1186/s12882-023-03256-5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/28/2023] [Indexed: 07/03/2023] Open
Abstract
BACKGROUND Proliferative glomerulonephritis with monoclonal immunoglobulin G (IgG) deposits (PGNMID) is a disease entity with nonorganized granular glomerular deposition with monoclonal proteins of both heavy and light chains. Dysproteinemia was observed in only 30% of the patients with PGNMID. We herein report a case of PGNMID with discrepancy between serum and glomerular deposits. CASE PRESENTATION The patient was a 50-year-old man who had been followed at a local clinic due to hypertension, type 2 diabetes, hyperlipidemia, hyperuricemia, fatty liver, and obesity. Proteinuria had been noted five years previously, and he had been referred to a hematology department due to hyperproteinemia, high gamma globulin, and κ Bence-Jones protein (BJP) positivity one year previously. Bone marrow aspiration showed 5% plasma cells, and he was referred to the nephrology department to evaluate persistent proteinuria. He was hypertensive, and his estimated glomerular filtration rate was 54.2 ml/min/1.73 m2. His urinary protein level was 0.84 g/g⋅Cr. Urine and serum immunofixation showed BJP-κ type and IgG-κ type, respectively. Kidney biopsy showed an increase in mesangial cells and matrix without nodular lesions under a light microscope. Immunofluorescence microscopy showed granular deposits of IgG and C3 on the capillary wall and weak positivity for C1q. IgG3 was predominant among the IgG subclasses, and intraglomerular κ and λ staining was negative for κ and positive for λ. Direct fast scarlet staining was negative. Electron microscopy showed lumpy deposits without a fibrillar structure in the subepithelial area. Based on the above findings, a diagnosis of membranous nephropathy-type PGNMID was made. Since proteinuria increased gradually after three years of treatment with valsartan (40 mg, daily), oral prednisolone (30 mg, daily) was initiated, which led to decreased proteinuria. The dose of oral prednisolone was gradually tapered to 10 mg per day. At that time, proteinuria was 0.88 g/g⋅Cr. We found 204 cases in 81 articles in the PubMed database, among which 8 showed discrepancy in the heavy and/or light chains between serum and kidney. CONCLUSIONS We experienced a case of membranous nephropathy-type PGNMID with discrepancy in light chains between serum and kidney that was successfully treated with oral prednisolone.
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Affiliation(s)
- Shoko Miura
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Kan Katayama
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Yuka Sugimoto
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Fumika Tanaka
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Mutsuki Mori
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Daisuke Takahashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Ryosuke Saiki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Yosuke Hirabayashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Tomohiro Murata
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Isao Tawara
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
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Shiratori H, Oguchi H, Isobe Y, Han KH, Sen A, Yakebe K, Takahashi D, Fukushima M, Arita M, Hase K. Gut microbiota-derived lipid metabolites facilitate regulatory T cell differentiation. Sci Rep 2023; 13:8903. [PMID: 37264064 DOI: 10.1038/s41598-023-35097-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 05/12/2023] [Indexed: 06/03/2023] Open
Abstract
Commensal bacteria-derived metabolites are critical in regulating the host immune system. Although the impact of gut microbiota-derived hydrophilic metabolites, such as short-chain fatty acids, on immune cell functions and development has been well documented, the immunomodulatory effects of gut microbiota-derived lipids are still of interest. Here, we report that lipid extracts from the feces of specific-pathogen-free (SPF), but not germ-free (GF), mice showed regulatory T (Treg)-cell-inducing activity. We conducted RP-HPLC-based fractionation and liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based lipidome profiling and identified two bioactive lipids, 9,10-dihydroxy-12Z-octadecenoic acid (9,10-DiHOME) and all-trans retinoic acid (atRA), with Treg-inducing activity in vitro. The luminal abundance of 9,10-DiHOME in the large intestine was significantly decreased by dextran sulfate sodium (DSS)-induced colitis, indicating that 9,10-DiHOME may be a potential biomarker of colitis. These observations implied that commensal bacteria-derived lipophilic metabolites might contribute to Treg development in the large intestine.
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Affiliation(s)
- Hiroaki Shiratori
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo, 105-8512, Japan
| | - Hiroyuki Oguchi
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo, 105-8512, Japan
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Kanagawa, 230-0045, Japan
| | - Yosuke Isobe
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Kanagawa, 230-0045, Japan
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo, 105-8512, Japan
| | - Kyu-Ho Han
- Department of Life and Food Sciences, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, 080-8555, Japan
| | - Akira Sen
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo, 105-8512, Japan
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Kanagawa, 230-0045, Japan
| | - Kyosuke Yakebe
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo, 105-8512, Japan
| | - Daisuke Takahashi
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo, 105-8512, Japan
| | - Michihiro Fukushima
- Department of Life and Food Sciences, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, 080-8555, Japan
| | - Makoto Arita
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Kanagawa, 230-0045, Japan.
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo, 105-8512, Japan.
| | - Koji Hase
- Division of Biochemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, and Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo, 105-8512, Japan.
- The Institute of Fermentation Sciences (IFeS), Faculty of Food and Agricultural Sciences, Fukushima University, Kanayagawa, Fukushima, 960-1296, Japan.
- International Research and Development Centre for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo (IMSUT), Minato-ku, Tokyo, 108-8639, Japan.
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Yumimoto K, Sugiyama S, Motomura S, Takahashi D, Nakayama KI. Molecular evolution of Keap1 was essential for adaptation of vertebrates to terrestrial life. Sci Adv 2023; 9:eadg2379. [PMID: 37205751 DOI: 10.1126/sciadv.adg2379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 04/14/2023] [Indexed: 05/21/2023]
Abstract
Reactive oxygen species (ROS) posed a risk for the transition of vertebrates from aquatic to terrestrial life. How ancestral organisms adapted to such ROS exposure has remained a mystery. Here, we show that attenuation of the activity of the ubiquitin ligase CRL3Keap1 for the transcription factor Nrf2 during evolution was key to development of an efficient response to ROS exposure. The Keap1 gene was duplicated in fish to give rise to Keap1A and the only remaining mammalian paralog Keap1B, the latter of which shows a lower affinity for Cul3 and contributes to robust Nrf2 induction in response to ROS exposure. Mutation of mammalian Keap1 to resemble zebrafish Keap1A resulted in an attenuated Nrf2 response, and most knock-in mice expressing such a Keap1 mutant died on exposure as neonates to sunlight-level ultraviolet radiation. Our results suggest that molecular evolution of Keap1 was essential for adaptation to terrestrial life.
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Affiliation(s)
- Kanae Yumimoto
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Shigeaki Sugiyama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Saori Motomura
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Daisuke Takahashi
- Department of Protein Structure, Function, and Design, Graduate School of Pharmaceutical Science, Kyushu University, Fukuoka 812-8582, Japan
| | - Keiichi I Nakayama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
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Takahashi H, Kono T, Sawada K, Kumano S, Tsuri Y, Maruyama M, Yoshimura M, Takahashi D, Kawamura Y, Uemura M, Nakabayashi S, Mori Y, Hosokawa Y, Yoshikawa HY. Spatiotemporal Control of Ice Crystallization in Supercooled Water via an Ultrashort Laser Impulse. J Phys Chem Lett 2023; 14:4394-4402. [PMID: 37154425 DOI: 10.1021/acs.jpclett.3c00414] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Focused irradiation with ultrashort laser pulses realized the fine spatiotemporal control of ice crystallization in supercooled water. An effective multiphoton excitation at the laser focus generated shockwaves and bubbles, which acted as an impulse for inducing ice crystal nucleation. The impulse that was localized close to the laser focus and accompanied by a small temperature elevation allowed the precise position control of ice crystallization and its observation with spatiotemporal resolution of micrometers and microseconds using a microscope. To verify the versatility of this laser method, we also applied it using various aqueous systems (e.g., plant extracts). The systematic study of crystallization probability revealed that laser-induced cavitation bubbles play a crucial role in inducing ice crystal nucleation. This method can be used as a tool for studying ice crystallization dynamics in various natural and biological phenomena.
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Affiliation(s)
- Hozumi Takahashi
- Department of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Tatsuya Kono
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Kosuke Sawada
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Satoru Kumano
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Yuka Tsuri
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Mihoko Maruyama
- Division of Electrical, Electronics and Infocommunications Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, 1-5 Hangi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Masashi Yoshimura
- Institute of Laser Engineering (ILE), Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Daisuke Takahashi
- United Graduate School of Agricultural Sciences, Iwate University, Ueda 3-18-8, Morioka 020-8550, Japan
- Division of Life Science, Graduate School of Science & Engineering, Saitama University, Shimo-Okubo 255, Sakura-ku, Saitama City, Saitama 338-8570, Japan
| | - Yukio Kawamura
- United Graduate School of Agricultural Sciences, Iwate University, Ueda 3-18-8, Morioka 020-8550, Japan
- Department of Plant-bioscience, Faculty of Agriculture, Iwate University, Ueda 3-18-8, Morioka 020-8550, Japan
| | - Matsuo Uemura
- United Graduate School of Agricultural Sciences, Iwate University, Ueda 3-18-8, Morioka 020-8550, Japan
- Department of Plant-bioscience, Faculty of Agriculture, Iwate University, Ueda 3-18-8, Morioka 020-8550, Japan
| | - Seiichiro Nakabayashi
- Department of Chemistry, Saitama University, Shimo-okubo 255, Sakura-ku, Saitama City, Saitama 338-8570, Japan
- Division of Strategic Research and Development, Graduate School of Science and Engineering, Saitama University, Shimo-okubo 255, Sakura-ku, Saitama City, Saitama, 338-8570, Japan
| | - Yusuke Mori
- Division of Electrical, Electronics and Infocommunications Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yoichiroh Hosokawa
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Hiroshi Y Yoshikawa
- Department of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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Ghosh K, Takahashi D, Kotake T. Plant type II arabinogalactan: Structural features and modification to increase functionality. Carbohydr Res 2023; 529:108828. [PMID: 37182471 DOI: 10.1016/j.carres.2023.108828] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/16/2023]
Abstract
Type II arabinogalactans (AGs) are a highly diverse class of plant polysaccharides generally encountered as the carbohydrate moieties of certain extracellular proteoglycans, the so-called arabinogalactan-proteins (AGPs), which are found on plasma membranes and in cell walls. The basic structure of type II AG is a 1,3-β-D-galactan main chain with 1,6-β-D-galactan side chains. The side chains are further decorated with other sugars such as α-l-arabinose and β-d-glucuronic acid. In addition, AGs with 1,6-β-D-galactan as the main chain, which are designated as 'type II related AG' in this review, can also be found in several plants. Due to their diverse and heterogenous features, the determination of carbohydrate structures of type II and type II related AGs is not easy. On the other hand, these complex AGs are scientifically and commercially attractive materials whose structures can be modified by chemical and biochemical approaches for specific purposes. In the current review, what is known about the chemical structures of type II and type II related AGs from different plant sources is outlined. After that, structural analysis techniques are considered and compared. Finally, structural modifications that enhance or alter functionality are highlighted.
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Affiliation(s)
- Kanika Ghosh
- Department of Chemistry, Bidhan Chandra College, Asansol, 713304, West Bengal, India.
| | - Daisuke Takahashi
- Division of Life Science, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama, 338-8570, Japan
| | - Toshihisa Kotake
- Division of Life Science, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama, 338-8570, Japan; Green Bioscience Research Center, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama, 338-8570, Japan.
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Shimizu T, Takahashi D, Ishizu H, Yokota S, Hasebe Y, Uetsuki K, Iwasaki N. Anatomical and Simulation Studies Based on Three-Dimensional-Computed Tomography Image Reconstruction of Femoral Offset. Diagnostics (Basel) 2023; 13:diagnostics13081434. [PMID: 37189535 DOI: 10.3390/diagnostics13081434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/12/2023] [Accepted: 03/28/2023] [Indexed: 05/17/2023] Open
Abstract
Although the hip joint morphology varies by race, few studies have investigated the associations between two-dimensional (2D) and three-dimensional (3D) morphologies. This study aimed to use computed tomography simulation data and radiographic (2D) data to clarify the 3D length of offset, 3D changes in the hip center of rotation, and femoral offset as well as investigate the anatomical parameters associated with the 3D length and changes. Sixty-six Japanese patients with a normal femoral head shape on the contralateral side were selected. In addition to radiographic femoral, acetabular, and global offsets, 3D femoral and cup offsets were investigated using commercial software. Our findings revealed that the mean 3D femoral and cup offsets were 40.0 mm and 45.5 mm, respectively; both were distributed around the mean values. The difference between the 3D femoral and cup offsets (i.e., 5 mm) was associated with the 2D acetabular offset. The 3D femoral offset was associated with the body length. In conclusion, these findings can be applied to the design of better ethnic-specific stem designs and can help physicians achieve more accurate preoperative diagnoses.
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Affiliation(s)
- Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Hotaka Ishizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Shunichi Yokota
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Yoshihiro Hasebe
- R&D Center, Teijin Nakashima Medical Co., Ltd., Okayama 701-1221, Japan
| | - Keita Uetsuki
- R&D Center, Teijin Nakashima Medical Co., Ltd., Okayama 701-1221, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
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Lonsdale A, Ceballos-Laita L, Takahashi D, Uemura M, Abadía J, Davis MJ, Bacic A, Doblin MS. LSPpred Suite: Tools for Leaderless Secretory Protein Prediction in Plants. Plants (Basel) 2023; 12:1428. [PMID: 37050054 PMCID: PMC10097205 DOI: 10.3390/plants12071428] [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] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 02/24/2023] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
Plant proteins that are secreted without a classical signal peptide leader sequence are termed leaderless secretory proteins (LSPs) and are implicated in both plant development and (a)biotic stress responses. In plant proteomics experimental workflows, identification of LSPs is hindered by the possibility of contamination from other subcellar compartments upon purification of the secretome. Applying machine learning algorithms to predict LSPs in plants is also challenging due to the rarity of experimentally validated examples for training purposes. This work attempts to address this issue by establishing criteria for identifying potential plant LSPs based on experimental observations and training random forest classifiers on the putative datasets. The resultant plant protein database LSPDB and bioinformatic prediction tools LSPpred and SPLpred are available at lsppred.lspdb.org. The LSPpred and SPLpred modules are internally validated on the training dataset, with false positives controlled at 5%, and are also able to classify the limited number of established plant LSPs (SPLpred (3/4, LSPpred 4/4). Until such time as a larger set of bona fide (independently experimentally validated) LSPs is established using imaging technologies (light/fluorescence/electron microscopy) to confirm sub-cellular location, these tools represent a bridging method for predicting and identifying plant putative LSPs for subsequent experimental validation.
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Affiliation(s)
- Andrew Lonsdale
- ARC Centre of Excellence in Plant Cell Walls, School of BioSciences, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Laura Ceballos-Laita
- Plant Stress Physiology Group, Plant Nutrition Department, Aula Dei Experimental Station, CSIC, P.O. Box 13034, 50080 Zaragoza, Spain
| | - Daisuke Takahashi
- United Graduate School of Agricultural Sciences, Iwate University, Morioka 020-8550, Japan
| | - Matsuo Uemura
- Faculty of Agriculture, Iwate University, Morioka 020-8550, Japan
| | - Javier Abadía
- Plant Stress Physiology Group, Plant Nutrition Department, Aula Dei Experimental Station, CSIC, P.O. Box 13034, 50080 Zaragoza, Spain
| | - Melissa J. Davis
- Bioinformatics, Walter and Eliza Hall Institute for Medical Research, Melbourne, VIC 3052, Australia
| | - Antony Bacic
- ARC Centre of Excellence in Plant Cell Walls, School of BioSciences, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Monika S. Doblin
- ARC Centre of Excellence in Plant Cell Walls, School of BioSciences, The University of Melbourne, Melbourne, VIC 3010, Australia
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Ebata T, Terkawi MA, Kitahara K, Yokota S, Shiota J, Nishida Y, Matsumae G, Alhasan H, Hamasaki M, Hontani K, Shimizu T, Takahashi D, Endo T, Onodera T, Kadoya K, Iwasaki N. Macrophage-derived extracellular vesicles trigger non-canonical pyroptosis in chondrocytes leading to cartilage catabolism in osteoarthritis. Arthritis Rheumatol 2023. [PMID: 36924130 DOI: 10.1002/art.42505] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/17/2023]
Abstract
OBJECTIVES The severity of osteoarthritis and cartilage degeneration are highly correlated with the development of synovitis, which is mediated by the activity of inflammatory macrophages. A better understanding of intercellular communication between inflammatory macrophages and chondrocytes should aid in the discovery of novel therapeutic targets. Here, we explored the pathological role of inflammatory macrophage extracellular vesicles in cartilage degeneration. METHODS Macrophages were stimulated by treatment with bacterial lipopolysaccharides to mimic the state of inflammatory macrophages and the resulting extracellular vesicles were harvested for chondrocyte stimulation in vitro and intraarticular injection in a mouse model. The stimulated chondrocytes were further subjected to RNA-seq analysis and other functional assays. The action of caspase-11 was disrupted in vitro using a specific siRNA or wedelolactone, and in experimental OA-murine models by the intraarticular injection of wedelolactone. RESULTS Stimulated chondrocytes exhibited a significant elevation in the expression of chondrocyte catabolic factors. Consistent with these results, RNA-seq analyses of stimulated chondrocytes indicated that upregulated genes are mainly categorized into apoptotic process and TNF-signaling pathway which suggests the induction of apoptotic process. Moreover, these chondrocytes exhibited a significant elevation in the expression of pyroptosis-related molecules that were correlated with the expression of chondrocyte catabolic factors. The disruption of caspase-11 significantly alleviated pyroptotic and catabolic processes in stimulated chondrocytes and the pathological changes in collagenase-and joint instability-induced OA models. CONCLUSIONS Our results provide a new insight into the pathological mechanisms of OA and suggest that non-canonical pyroptosis in chondrocytes represents an attractive therapeutic target for future treatment.
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Affiliation(s)
- Taku Ebata
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Mohamad Alaa Terkawi
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Keita Kitahara
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Syunichi Yokota
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Junki Shiota
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Yoshio Nishida
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Gen Matsumae
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Hend Alhasan
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Masanari Hamasaki
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Kazutoshi Hontani
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Tomohiro Shimizu
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Daisuke Takahashi
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Tsutomu Endo
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Tomohiro Onodera
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Ken Kadoya
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Norimasa Iwasaki
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, 060-8638, Japan
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40
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Charrier G, Willick IR, Takahashi D. Cross-disciplinary insights into the mechanisms of plant cold hardiness: From molecules to ecosystems. Physiol Plant 2023; 175:e13901. [PMID: 37096430 DOI: 10.1111/ppl.13901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 03/28/2023] [Indexed: 05/03/2023]
Affiliation(s)
| | - Ian R Willick
- Kentville Research and Development Centre, Agriculture and Agri-Food Canada, Kentville, Nova Scotia, Canada
| | - Daisuke Takahashi
- Graduate School of Science and Engineering, Saitama University, Saitama, Japan
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41
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Yoshimoto S, Suzuki T, Otani N, Takahashi D, Toshima K, Dohmae N, Simizu S. Destabilization of vitelline membrane outer layer protein 1 homolog (VMO1) by C-mannosylation. FEBS Open Bio 2023; 13:490-499. [PMID: 36680395 PMCID: PMC9989928 DOI: 10.1002/2211-5463.13561] [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: 12/16/2022] [Revised: 01/11/2023] [Accepted: 01/19/2023] [Indexed: 01/22/2023] Open
Abstract
C-mannosylation is a rare type of protein glycosylation whereby a single mannose is added to the first tryptophan in the consensus sequence Trp-Xaa-Xaa-Trp/Cys (in which Xaa represents any amino acid). Its consensus sequence is mainly found in proteins containing a thrombospondin type-1 repeat (TSR1) domain and in type I cytokine receptors. In these proteins, C-mannosylation affects protein secretion, intracellular localization, and protein stability; however, the role of C-mannosylation in proteins that are not type I cytokine receptors and/or do not contain a TSR1 domain is less well explored. In this study, we focused on human vitelline membrane outer layer protein 1 homolog (VMO1). VMO1, which possesses two putative C-mannosylation sites, is a 21-kDa secreted protein that does not contain a TSR1 domain and is not a type I cytokine receptor. Mass spectrometry analyses revealed that VMO1 is C-mannosylated at Trp105 but not at Trp44 . Although C-mannosylation does not affect the extracellular secretion of VMO1, it destabilizes the intracellular VMO1. In addition, a structural comparison between VMO1 and C-mannosylated VMO1 showed that the modification of the mannose changes the conformation of three loops in VMO1. Taken together, our results demonstrate the first example of C-mannosylation for protein destabilization of VMO1.
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Affiliation(s)
- Satoshi Yoshimoto
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Takehiro Suzuki
- Biomolecular Characterization Unit, RIKEN Center for Sustainable Resource Science, Wako, Japan
| | - Naoki Otani
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Daisuke Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Kazunobu Toshima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Naoshi Dohmae
- Biomolecular Characterization Unit, RIKEN Center for Sustainable Resource Science, Wako, Japan
| | - Siro Simizu
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Japan
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42
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Yamashita K, Takahashi D, Yamamoto Y, Kiyomoto S, Shibata T, Kawabata SI. Effects of Ca2+ ions on the horseshoe crab coagulation cascade triggered by lipopolysaccharide. J Biochem 2023:7049406. [PMID: 36805939 DOI: 10.1093/jb/mvad018] [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: 01/09/2023] [Revised: 02/14/2023] [Indexed: 02/23/2023] Open
Abstract
The lipopolysaccharide (LPS)-triggered horseshoe crab coagulation cascade is composed of three protease zymogens, prochelicerase C (proC), prochelicerase B (proB), and the proclotting enzyme (proCE). In this study, we found that Ca2+ ions increase the production of the clotting enzyme as a result of a cascade reaction reconstituted by recombinant proteins of wild-type (WT) proC, WT proB, and WT proCE. We divided the cascade into three stages: autocatalytic activation of WT proC on the surface of LPS into WT α-chelicerase C (Stage 1); activation of WT proB on the surface of LPS into WT chelicerase B by WT α-chelicerase C (Stage 2); and activation of WT proCE into WT CE by chelicerase B (Stage 3). Ca2+ ions enhanced the proteolytic activation in Stage 2, but not those in Stages 1 and 3. Moreover, we performed isothermal titration calorimetry to clarify the interaction of LPS or the recombinant zymogens with Ca2+ ions. LPS interacted with Ca2+ ions at an association constant of Ka = 4.7 × 104 M-1, but not with any of the recombinant zymogens. We concluded that LPS bound with Ca2+ ions facilitates the chain reaction of the cascade as a more efficient scaffold than LPS itself.
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Affiliation(s)
- Keisuke Yamashita
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka 819-0395
| | - Daisuke Takahashi
- Faculty of Pharmaceutical Science, Kyushu University, Fukuoka 812-8582
| | - Yuki Yamamoto
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka 819-0395
| | - Shingo Kiyomoto
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka 819-0395
| | - Toshio Shibata
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka 819-0395.,Department of Biology, Faculty of Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Shun-Ichiro Kawabata
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka 819-0395.,Department of Biology, Faculty of Science, Kyushu University, Fukuoka 819-0395, Japan
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43
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Ishizu H, Shimizu T, Sasazawa F, Takahashi D, Terkawi MA, Takahashi K, Ohashi Y, Kanayama M, Iwasaki N. Comparison of re-revision rate and radiological outcomes between Kerboull-type plate and metal mesh with impaction bone grafting for revision total hip arthroplasty. BMC Musculoskelet Disord 2023; 24:134. [PMID: 36803129 PMCID: PMC9940395 DOI: 10.1186/s12891-023-06240-0] [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] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/11/2023] [Indexed: 02/22/2023] Open
Abstract
BACKGROUND This study compared the re-revision rate and radiographic outcomes of revision total hip arthroplasty (THA) using a Kerboull-type acetabular reinforcement device (KT plate) with bulk structural allograft and metal mesh with impaction bone grafting (IBG). METHODS Ninety-one hips of 81 patients underwent revision THA for American Academy of Orthopedic Surgeons (AAOS) classification type III defects from 2008 to 2018. Of these, seven hips of five patients and 15 hips of 13 patients were excluded due to insufficient follow-up information (< 24 months) and large bone defects with a vertical defect height ≥ 60 mm, respectively. The current study compared the survival and radiographic parameters of 45 hips of 41 patients using a KT plate (KT group) and 24 hips of 24 patients using a metal mesh with IBG (mesh group). RESULTS Eleven hips (24.4%) in the KT group and 1 hip (4.2%) in the mesh group exhibited radiological failure. Moreover, 8 hips in the KT group (17.0%) required a re-revision THA, while none of the patients in the mesh group required a re-revision. The survival rate with radiographic failure as the endpoint in the mesh group was significantly higher than that in the KT group (100% vs 86.7% at 1-year and 95.8% vs 80.0% at 5-years, respectively; p = 0.032). On multivariable analysis evaluating factors associated with radiographic failure, there were no significant associations with any radiographic measurement. Of the 11 hips with radiographic failure, 1 (11.1%), 3 (12.5%), and 7 (58.3%) hips were of Kawanabe classification stages 2, 3, and 4, respectively. CONCLUSIONS The findings of this study suggest that revision THA using KT plates with bulk structure allografts could provide poorer clinical outcomes than revision THA using a metal mesh with IBG. Although revision THA using KT plates with bulk structural allografts could set the true hip center, there is no association between a high hip center and clinical outcomes. The relationship between the position of the KT plate and the host bone might be considered more carefully.
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Affiliation(s)
- Hotaka Ishizu
- grid.39158.360000 0001 2173 7691Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, 060-8638 Japan
| | - Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, 060-8638, Japan.
| | - Fumio Sasazawa
- grid.413530.00000 0004 0640 759XDepartment of Orthopaedic Surgery, Hakodate Central General Hospital, Hakodate, Hon-cho 33-2, 040-8585 Japan
| | - Daisuke Takahashi
- grid.39158.360000 0001 2173 7691Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, 060-8638 Japan
| | - Mohamad Alaa Terkawi
- grid.39158.360000 0001 2173 7691Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, 060-8638 Japan
| | - Kaname Takahashi
- grid.413530.00000 0004 0640 759XDepartment of Orthopaedic Surgery, Hakodate Central General Hospital, Hakodate, Hon-cho 33-2, 040-8585 Japan
| | - Yusuke Ohashi
- grid.413530.00000 0004 0640 759XDepartment of Orthopaedic Surgery, Hakodate Central General Hospital, Hakodate, Hon-cho 33-2, 040-8585 Japan
| | - Masahiro Kanayama
- grid.413530.00000 0004 0640 759XDepartment of Orthopaedic Surgery, Hakodate Central General Hospital, Hakodate, Hon-cho 33-2, 040-8585 Japan
| | - Norimasa Iwasaki
- grid.39158.360000 0001 2173 7691Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, 060-8638 Japan
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Ohue-Kitano R, Nonaka H, Nishida A, Masujima Y, Takahashi D, Ikeda T, Uwamizu A, Tanaka M, Kohjima M, Igarashi M, Katoh H, Tanaka T, Inoue A, Suganami T, Hase K, Ogawa Y, Aoki J, Kimura I. Medium-chain fatty acids suppress lipotoxicity-induced hepatic fibrosis via the immunomodulating receptor GPR84. JCI Insight 2023; 8:165469. [PMID: 36480287 PMCID: PMC9977302 DOI: 10.1172/jci.insight.165469] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 09/15/2022] [Accepted: 12/02/2022] [Indexed: 12/14/2022] Open
Abstract
Medium-chain triglycerides (MCTs), which consist of medium-chain fatty acids (MCFAs), are unique forms of dietary fat with various health benefits. G protein-coupled 84 (GPR84) acts as a receptor for MCFAs (especially C10:0 and C12:0); however, GPR84 is still considered an orphan receptor, and the nutritional signaling of endogenous and dietary MCFAs via GPR84 remains unclear. Here, we showed that endogenous MCFA-mediated GPR84 signaling protected hepatic functions from diet-induced lipotoxicity. Under high-fat diet (HFD) conditions, GPR84-deficient mice exhibited nonalcoholic steatohepatitis (NASH) and the progression of hepatic fibrosis but not steatosis. With markedly increased hepatic MCFA levels under HFD, GPR84 suppressed lipotoxicity-induced macrophage overactivation. Thus, GPR84 is an immunomodulating receptor that suppresses excessive dietary fat intake-induced toxicity by sensing increases in MCFAs. Additionally, administering MCTs, MCFAs (C10:0 or C12:0, but not C8:0), or GPR84 agonists effectively improved NASH in mouse models. Therefore, exogenous GPR84 stimulation is a potential strategy for treating NASH.
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Affiliation(s)
- Ryuji Ohue-Kitano
- Laboratory of Molecular Neurobiology, Graduate School of Biostudies and,Laboratory of Molecular Neurobiology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Hazuki Nonaka
- Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Akari Nishida
- Laboratory of Molecular Neurobiology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Yuki Masujima
- Laboratory of Molecular Neurobiology, Graduate School of Biostudies and
| | - Daisuke Takahashi
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Science, Keio University, Tokyo, Japan
| | - Takako Ikeda
- Laboratory of Molecular Neurobiology, Graduate School of Biostudies and,Laboratory of Molecular Neurobiology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Akiharu Uwamizu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Miyako Tanaka
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
| | - Motoyuki Kohjima
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Miki Igarashi
- Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Hironori Katoh
- Laboratory of Molecular Neurobiology, Graduate School of Biostudies and,Laboratory of Molecular Neurobiology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Tomohiro Tanaka
- Department of Gastroenterology and Metabolism, Graduate School of Medical Sciences and Medical School, Nagoya City University, Nagoya, Japan
| | - Asuka Inoue
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Takayoshi Suganami
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
| | - Koji Hase
- Division of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Science, Keio University, Tokyo, Japan.,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo (IMSUT), Bunkyo-ku, Tokyo, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Junken Aoki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Ikuo Kimura
- Laboratory of Molecular Neurobiology, Graduate School of Biostudies and,Laboratory of Molecular Neurobiology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan.,Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
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Shiiya N, Washiyama N, Takahashi D, Tsuda K, Ohashi Y, Natsume K, Hirano M, Takeuchi Y. Patency of separate tube grafts for intercostal artery reconstruction: Size and length matter. Eur J Cardiothorac Surg 2023; 63:6998207. [PMID: 36688718 DOI: 10.1093/ejcts/ezad023] [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: 09/14/2022] [Revised: 12/28/2022] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVES Low patency is a major concern when using separate tube grafts for intercostal artery reconstruction. We aimed to elucidate the optimal size and length of grafts from the patency and computational fluid dynamics. METHODS The patency, size, and length of separate tube grafts were evaluated in 41 patients. Computational fluid dynamics simulation was performed in a model derived from a patient with a patent 12-mm graft of 15 mm in length, with 2 simulation models with a smaller (8-mm) or longer (30-mm) graft. RESULTS A total of 49 grafts were used for intercostal artery reconstruction. There was 1 in-hospital death and 2 spinal cord injuries. The patency rate, which could be evaluated in 46 grafts, was 63% (29/46). It was 71% (24/34) in thoraco-abdominal aortic replacement and 42% (5/12) in descending aortic replacement. Among 14 patients in whom all grafts were occluded, no patients developed spinal cord injury. All grafts longer than 25 mm were occluded (n = 5). Eight- and 10-mm grafts showed better patency than 12-mm grafts in thoraco-abdominal aortic replacement (p = 0.008), when grafts were shorter than 25 mm. Computational fluid dynamics simulation revealed vortical flow within the 12-mm graft, which did not reach the intercostal orifice, while helical flow was maintained throughout the cardiac cycle within the 8-mm graft. CONCLUSIONS Eight- and 10-mm grafts seemed better than 12-mm grafts, and grafts should be kept shorter than 25 mm. Computational fluid dynamics simulation may shed light on the issue of optimal intercostal artery reconstruction technique.
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Affiliation(s)
- Norihiko Shiiya
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Naoki Washiyama
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Daisuke Takahashi
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kazumasa Tsuda
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yuko Ohashi
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kayoko Natsume
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Masahiro Hirano
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yuki Takeuchi
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Kutsuno T, Chowhan S, Kotake T, Takahashi D. Temporal cell wall changes during cold acclimation and deacclimation and their potential involvement in freezing tolerance and growth. Physiol Plant 2023; 175:e13837. [PMID: 36461890 PMCID: PMC10107845 DOI: 10.1111/ppl.13837] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 11/16/2022] [Accepted: 11/25/2022] [Indexed: 05/19/2023]
Abstract
Plants adapt to freezing stress through cold acclimation, which is induced by nonfreezing low temperatures and accompanied by growth arrest. A later increase in temperature after cold acclimation leads to rapid loss of freezing tolerance and growth resumption, a process called deacclimation. Appropriate regulation of the trade-off between freezing tolerance and growth is necessary for efficient plant development in a changing environment. The cell wall, which mainly consists of polysaccharide polymers, is involved in both freezing tolerance and growth. Still, it is unclear how the balance between freezing tolerance and growth is affected during cold acclimation and deacclimation by the changes in cell wall structure and what role is played by its monosaccharide composition. Therefore, to elucidate the regulatory mechanisms controlling freezing tolerance and growth during cold acclimation and deacclimation, we investigated cell wall changes in detail by sequential fractionation and monosaccharide composition analysis in the model plant Arabidopsis thaliana, for which a plethora of information and mutant lines are available. We found that arabinogalactan proteins and pectic galactan changed in close coordination with changes in freezing tolerance and growth during cold acclimation and deacclimation. On the other hand, arabinan and xyloglucan did not return to nonacclimation levels after deacclimation but stabilized at cold acclimation levels. This indicates that deacclimation does not completely restore cell wall composition to the nonacclimated state but rather changes it to a specific novel composition that is probably a consequence of the loss of freezing tolerance and provides conditions for growth resumption.
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Affiliation(s)
- Tatsuya Kutsuno
- Graduate School of Science & EngineeringSaitama UniversitySaitamaJapan
| | - Sushan Chowhan
- Graduate School of Science & EngineeringSaitama UniversitySaitamaJapan
| | - Toshihisa Kotake
- Graduate School of Science & EngineeringSaitama UniversitySaitamaJapan
| | - Daisuke Takahashi
- Graduate School of Science & EngineeringSaitama UniversitySaitamaJapan
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47
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Oki Y, Katsuma A, Okabe M, Watanabe M, Sagasaki M, Takahashi D, Kimura A, Kato J, Ueda H, Hataya H, Fujimaru T, Mori T, Sohara E, Uchida S, Miyazaki Y, Yokoo T. Different Clinical Courses of Nephronophthisis in Dizygotic Twins. Intern Med 2023; 62:87-90. [PMID: 35676033 PMCID: PMC9876724 DOI: 10.2169/internalmedicine.8707-21] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Siblings with nephronophthisis occasionally show different clinical courses; however, the reasons for this remain unclear. We herein report cases of nephronophthisis in a pair of dizygotic twins with different clinical courses. The brother developed end-stage kidney disease at 17 years old; however, his sister did not show kidney insufficiency. Kidney biopsies revealed severe tubulointerstitial damage at 14 and 22 years old in the brother and sister, respectively. Both had a homozygous NPHP1 deletion with different heterozygous mutations related to hereditary cystic kidney disease. Since the dizygotic twins were exposed to similar environmental factors, genetic factors may have influenced their clinical course more strongly than environmental factors.
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Affiliation(s)
- Yutaro Oki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Ai Katsuma
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Mao Watanabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Makoto Sagasaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Daisuke Takahashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Ai Kimura
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Junichiro Kato
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Hiroshi Hataya
- Department of Nephrology and Rheumatology, Tokyo Metropolitan Children's Medical Center, Japan
| | - Takuya Fujimaru
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Takayasu Mori
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Eisei Sohara
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Shinichi Uchida
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Yoichi Miyazaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
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Shiiya N, Washiyama N, Takahashi D, Tsuda K, Ohashi Y, Natsume K, Hirano M. Surgical Approaches to Single-Stage Extended Aortic Repair from the Ascending to the Distal Descending Aorta. Ann Thorac Cardiovasc Surg 2023; 29:1-10. [PMID: 36104188 PMCID: PMC9939677 DOI: 10.5761/atcs.ra.22-00148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Single-stage extended replacement from the ascending to the distal descending aorta or beyond is a formidable operation that should be preserved for those who have no other option or those who are physically fit, and should be performed in the experienced centers. Hybrid operations combining open surgical repair with thoracic endovascular aortic repair through a median sternotomy incision are preferable because these operations are less invasive than the extended open aortic repair and the risk of spinal cord ischemia is lower compared with the frozen elephant trunk operation. However, these operations are associated with the inherent demerits of endovascular aneurysm exclusion. When the underlying aortic pathology necessitates extended open aortic repair in a single stage, approaches such as the anterolateral partial sternotomy, straight incision with rib cross, and extended thoracotomy with sternal transection may be useful to provide sufficient exposure for both aortic reconstruction and organ protection, with less surgical stress to the patients.
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Affiliation(s)
- Norihiko Shiiya
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan,Corresponding author: Norihiko Shiiya. First Department of Surgery, Hamamatsu University School of Medicine, 1-20-1, Handayama, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan
| | - Naoki Washiyama
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Daisuke Takahashi
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Kazumasa Tsuda
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Yuko Ohashi
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Kayoko Natsume
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Masahiro Hirano
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
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49
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Tsuda K, Washiyama N, Takahashi D, Natsume K, Ohashi Y, Hirano M, Takeuchi Y, Shiiya N. 18-Fluorodeoxyglucose positron emission tomography in the diagnosis of prosthetic aortic graft infection: the difference between open and endovascular repair. Eur J Cardiothorac Surg 2022; 63:6832041. [PMID: 36394268 DOI: 10.1093/ejcts/ezac542] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVES 18-Fluorodeoxyglucose (18F-FDG) positron emission tomography (PET)/computed tomography (CT) has been reported as useful for diagnosing aortic graft infection. However, 18F-FDG uptake may depend upon various factors including open versus endovascular repair and time from surgery. We aimed to elucidate the factors influencing its uptake and the diagnostic value of 18F-FDG PET/CT after open and endovascular repair. METHODS Hospital database of PET/CT (N = 14 490) and our departmental database were cross-checked to identify those who underwent 18F-FDG PET/CT after aortic repair. Patient's data were retrieved from the chart. Images were reviewed by 2 nuclear medicine specialists in consensus, and the presence of increased 18F-FDG uptake was recorded. The maximum standardized uptake value (SUV max) was measured. RESULTS Among the 1112 patients who underwent aortic repair between 2011 and 2022, 71 patients were identified. Eighteen patients underwent 18F-FDG PET/CT for suspected graft infection and the remaining 53 patients for other purposes (malignancy, etc.). Fourteen patients were treated as aortic graft infection. They had significantly higher SUV max than those without graft infection [mean 8.64 (standard deviation 2.78) vs 3.40 (standard deviation 0.84); P < 0.01]. In the non-infected grafts, SUV max was higher early after open surgical repair, while it remained low after endovascular repair. CONCLUSIONS After endovascular aortic repair, a constant cut-off value of 'SUV max = 4.5' seems appropriate for diagnosing graft infection, since it remains low and stable from the early postoperative period. After open surgical repair, it seems acceptable to have 'stepwise cut-off value' depending on the time from surgery.
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Affiliation(s)
- Kazumasa Tsuda
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Naoki Washiyama
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Daisuke Takahashi
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kayoko Natsume
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yuko Ohashi
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Masahiro Hirano
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yuki Takeuchi
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Norihiko Shiiya
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Takahashi D. Female Preference for Males Varies with Resource Availability for Reproduction in the Freshwater Goby Tridentiger brevispinis. Zoolog Sci 2022; 39:507-513. [PMID: 36495485 DOI: 10.2108/zs210100] [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: 11/03/2021] [Accepted: 06/05/2022] [Indexed: 12/14/2022]
Abstract
Animals with resource-based breeding systems show varying sexual selection modes driven by resource availability. Males of the freshwater goby Tridentiger brevispinis (Pisces: Gobiidae), which are larger, with a longer dorsal-fin, than females, make nests under stones, and provide exclusive parental care of eggs in the nests. For this goby, the nest sites are crucial resources for reproduction. Laboratory experiments that controlled for nest-site abundance were conducted to investigate the effects of nest-site availability on male-male competition and female mate choice. Nest-holding males were on average larger than the average size of all males combined under conditions of low nest-site availability. This result indicates a greater advantage for large males in intrasexual competition for nest sites under conditions of low nest-site availability. Furthermore, egg-guarding males under conditions of low nest-site availability were larger than nest-holding males without eggs. Under conditions of high nest-site availability, the dorsal-fin length of nest-holding males with eggs were longer than those without eggs. These findings suggest that female preference for mates varies qualitatively with nest-site availability. This variation in female preference might result from mate availability that depends upon nest-site availability. The current study concludes that in nest-spawning fishes, nest-site availability can affect the intensity of male-male competition and cause variations of female preference for mates.
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Affiliation(s)
- Daisuke Takahashi
- Department of Biosphere Sciences, School of Human Sciences, Kobe College, Nishinomiya, Hyogo 662-8505, Japan,
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