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Kawano M, Yano Y, Yamamoto A, Yasutomi E, Inoue Y, Kitadai J, Yoshida R, Matsuura T, Shiomi Y, Ueda Y, Kodama Y. Risk Factors for Immune Checkpoint Inhibitor-Induced Liver Injury and the Significance of Liver Biopsy. Diagnostics (Basel) 2024; 14:815. [PMID: 38667461 PMCID: PMC11049019 DOI: 10.3390/diagnostics14080815] [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: 02/12/2024] [Revised: 04/07/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Immune checkpoint inhibitor (ICI)-induced liver injury (LI) is a common adverse event, but the clinical characteristics based on the classification of hepatocellular injury and cholestatic types are not fully evaluated. This study aims to analyze risk factors and histological findings in relation to the classification of ICI-induced LI. In total, 254 ICI-induced LI patients among 1086 treated with ICIs between September 2014 and March 2022 were classified according to the diagnostic criteria for drug-induced LI (DILI), and their risk factors and outcomes were evaluated. Kaplan-Meier analyses showed that overall survival in patients with hepatocellular-injury-type LI was significantly longer than others (p < 0.05). Regarding pre-treatment factors, the lymphocyte count was significantly higher in patients with ICI-induced LI, especially in hepatocellular-injury-type LI. Gamma glutamyl transferase (γGTP) and alkaline phosphatase (ALP) were also significantly lower in patients with ICI-induced LI (p < 0.05). Multivariate analyses revealed that malignant melanoma, high lymphocyte count, and low ALP levels were extracted as factors contributing to hepatocellular-injury-type LI. The histological findings among 37 patients diagnosed as ICI-induced LI via liver biopsy also revealed that the spotty/focal necrosis was significantly frequent in hepatocellular-injury-type LI, whereas ductular reactions were frequently observed in cholestatic-type LI. It is suggested that the histological inflammation pattern in patients with LI is closely correlated with the type of DILI.
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Affiliation(s)
- Miki Kawano
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
| | - Yoshihiko Yano
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
| | - Atsushi Yamamoto
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
| | - Eiichiro Yasutomi
- Department of Gastroenterology, Hyogo Prefectural Kakogawa Medical Center, Kakogawa 675-8555, Japan;
| | - Yuta Inoue
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
| | - Jun Kitadai
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
| | - Ryutaro Yoshida
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
| | - Takanori Matsuura
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
| | - Yuuki Shiomi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
| | - Yoshihide Ueda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.K.); (A.Y.); (Y.I.); (J.K.); (R.Y.); (T.M.); (Y.S.); (Y.U.); (Y.K.)
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Kaneko K, Koriyama S, Tsuzuki S, Masui K, Kanasaki R, Yamamoto A, Nagao M, Muragaki Y, Kawamata T, Sakai S. Association Between Pretreatment 11C-Methionine Positron Emission Tomography Metrics, Histology, and Prognosis in 125 Newly Diagnosed Patients with Adult-Type Diffuse Glioma Based on the World Health Organization 2021Classification. World Neurosurg 2024:S1878-8750(24)00550-3. [PMID: 38583563 DOI: 10.1016/j.wneu.2024.03.164] [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: 03/05/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/09/2024]
Abstract
OBJECTIVE To clarify the relationships between 11C-methionine (MET) positron emission tomography (PET) metrics and the histology, genetics, and prognosis of adult-type diffuse glioma (ADG) based on the World Health Organization (WHO) 2021 classification. METHODS A total of 125 newly diagnosed patients with ADG were enrolled. We compared the maximum standardized uptake value (SUVmax), tumor-to-normal background ratio (TNR), metabolic tumor volume (MTV), and total lesion methionine uptake (TLMU) to the histology and genetics of the patients with ADG. We also evaluated the prognoses of the 93 surgically treated patients. RESULTS The patients with isocitrate dehydrogenase wild ADG showed significantly higher MET-PET metrics (P < 0.05 for all parameters), significantly shorter overall survival and progression-free survival (P < 0.0001 for both) than those of the patients with isocitrate dehydrogenase mutant (IDHm) ADG. In the IDHm ADG group, the SUVmax, MTV, and TLMU values were significantly higher in patients with IDHm grade (G) 4 astrocytoma than patients with IDHm G2/3 astrocytoma (P < 0.05 for all), but not than patients with G2-3 oligodendroglioma. The progression-free survival was significantly shorter in the patients with G4 astrocytoma versus the patients with G2/3 astrocytoma and G3 oligodendroglioma (P < 0.05 for both). The SUVmax and TNR values were significantly higher in recurrent patients than nonrecurrent patients (P < 0.01 for both), but no significant differences were found in MTV or TLMU values. CONCLUSIONS MET-PET metrics well reflect the histological subtype, WHO grade and prognosis of ADG based on the 2021 WHO classification, with the exception of oligodendroglial tumors. Volumetric parameters were not significantly associated with recurrence, unlike the SUVmax and TNR.
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Affiliation(s)
- Koichiro Kaneko
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan.
| | - Shunichi Koriyama
- Department of Neurosurgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Shunsuke Tsuzuki
- Department of Neurosurgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kenta Masui
- Department of Pathology, Tokyo Women's Medical University, Tokyo, Japan
| | - Rie Kanasaki
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Michinobu Nagao
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Yoshihiro Muragaki
- Department of Neurosurgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Takakazu Kawamata
- Department of Neurosurgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Shuji Sakai
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
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Shimizu R, Morizane S, Yamamoto A, Yamane H, Nishikawa R, Kimura Y, Yamaguchi N, Hikita K, Honda M, Takenaka A. Assessment of the accuracy of biparametric MRI/TRUS fusion-guided biopsy for index tumor evaluation using postoperative pathology specimens. BMC Urol 2024; 24:79. [PMID: 38575912 PMCID: PMC10996083 DOI: 10.1186/s12894-024-01473-0] [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: 07/15/2023] [Accepted: 04/01/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND Multiparametric MRI (mpMRI) is widely used for the diagnosis, surveillance, and staging of prostate cancer. However, it has several limitations, including higher costs, longer examination times, and the use of gadolinium-based contrast agents. This study aimed to investigate the accuracy of preoperatively assessed index tumors (ITs) using biparametric MRI (bpMRI)/transrectal ultrasound (TRUS) fusion biopsy compared with radical prostatectomy (RP) specimens. METHODS We included 113 patients diagnosed with prostate cancer through bpMRI/TRUS fusion-guided biopsies of lesions with a Prostate Imaging Reporting and Data System (PI-RADS) category ≥ 3. These patients underwent robot-assisted laparoscopic radical prostatectomy (RARP) at our institution between July 2017 and March 2023. We examined the localization of preoperative and postoperative ITs, the highest Gleason score (GS), and tumor diameter in these patients. RESULTS The preoperative cT stage matched the postoperative pT stage in 53 cases (47%), while 31 cases (27%) were upstaged, and 29 cases (26%) were downstaged (Weighted Kappa = 0.21). The preoperative and postoperative IT localizations were consistent in 97 cases (86%). The concordance rate between Gleason groups in targeted biopsies and RP specimens was 51%, with an upgrade in 25 cases (23%) and a downgrade in 27 cases (25%) (Weighted Kappa = 0.42). The maximum diameter of the IT and the maximum cancer core length on biopsy were correlated with the RP tumor's maximum diameter (p < 0.001 for both). CONCLUSION The diagnostic accuracy of bpMRI/TRUS fusion biopsy is comparable to mpMRI, suggesting that it can be a cost-effective and time-saving alternative.
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Affiliation(s)
- Ryutaro Shimizu
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan
| | - Shuichi Morizane
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan.
| | - Atsushi Yamamoto
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan
| | - Hiroshi Yamane
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan
| | - Ryoma Nishikawa
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan
| | - Yusuke Kimura
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan
| | - Noriya Yamaguchi
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan
| | - Katsuya Hikita
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan
| | - Masashi Honda
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan
| | - Atsushi Takenaka
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, 683-8504, Japan
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Kaneko K, Nagao M, Ueda K, Yamamoto A, Sakai S. Simultaneous evaluation of brain metastasis and thoracic cancer using semiconductor 11C-methionine PET/CT imaging. Ann Nucl Med 2024; 38:278-287. [PMID: 38386272 DOI: 10.1007/s12149-024-01908-6] [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: 10/18/2023] [Accepted: 12/27/2023] [Indexed: 02/23/2024]
Abstract
OBJECTIVE To investigate the potential of whole-body digital 11C-methionine (MET) PET/CT imaging for simultaneous evaluation of thoracic cancer patients suspected of local recurrence (LR) after stereotactic radiosurgery (SRS) for brain metastasis. METHODS A total of 45 lung or breast cancer patients suspected of LR after SRS were investigated using brain and whole-body MET-PET/CT scans. We compared the tumor-to-normal ratio (TNR) and maximum standardized uptake values (SUVmax) between patients with LR and radiation necrosis (RN) and performed receiver operating characteristic (ROC) analyses. We also investigated associations among extracranial recurrence, intracranial recurrence, primary site, and initial treatment type. RESULTS A total of 44 LR and 14 RN lesions were analyzed. In the ROC analyses for differentiating LR from RN, TNR showed higher area under the curve (AUC) (0.82) than SUVmax (0.79), and the cutoff TNR value (2.12) was higher than current cutoff values of conventional PET systems. The whole-body scans detected extracranial recurrences in 31.1% of the patients. Recurrence rates were not significantly correlated with existence of intracranial recurrence or primary site, but patients who underwent non-surgical treatment (consisting of stage III/ IV patients according to the Union for International Cancer Control TNM classification or small-cell lung cancer patients) showed significantly higher recurrence than the surgically treated patients (68.8% vs. 10.3%, p = 0.0001). CONCLUSION In digital MET-PET/CT imaging, TNR was a more useful parameter to differentiate LR from RN than SUVmax, and the cutoff value was higher than those with conventional PET systems. Additional whole-body scans could detect extracranial recurrence and would be especially useful for advanced thoracic cancer patients who underwent non-surgical treatment.
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Affiliation(s)
- Koichiro Kaneko
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
| | - Michinobu Nagao
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Kaori Ueda
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Shuji Sakai
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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Kemmei T, Yudo A, Kodama S, Yamamoto A, Inoue Y, Kagaya S, Hayakawa K. Separation of inorganic anions on reversed-phase C18 columns with a phosphomolybdate mobile phase. J Chromatogr A 2024; 1722:464843. [PMID: 38574599 DOI: 10.1016/j.chroma.2024.464843] [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: 12/28/2023] [Revised: 03/11/2024] [Accepted: 03/22/2024] [Indexed: 04/06/2024]
Abstract
Reversed-phase high performance liquid chromatography (RP-HPLC) is the most widely used chromatographic method. In addition to hydrophobic interactions, additional interactions such as electrostatic interactions may participate in the retention behaviour of an analyte. This makes it possible to use RP-HPLC for many types of analyte. We describe a simple method for separating inorganic anions on a C18 column, in which retention of inorganic anions is almost entirely due to electrostatic interactions. This leads to rapid separations as well as higher theoretical plate numbers. We used 2 mM phosphoric acid containing a low concentration of disodium molybdate as the mobile phase, which allows UV detection of non-UV-absorbing anions. With this method, we determined eight inorganic anions including several non-UV-absorbing anions photometrically at 220 nm. The detection limits of the examined eight inorganic anions calculated at a signal-to-noise ratio of 3 were between 0.3 and 10 μM. The detector response was linear over three orders of magnitude of inorganic anion concentration. The proposed RP-HPLC/UV method was successfully applied to determine inorganic anions in some water samples.
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Affiliation(s)
- Tomoko Kemmei
- Toyama Institute of Health, 17-1 Nakataikoyama, Imizu 939-0363, Japan; Department of Environmental Applied Chemistry, Faculty of Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan.
| | - Azusa Yudo
- Toyama Institute of Health, 17-1 Nakataikoyama, Imizu 939-0363, Japan; Department of Environmental Applied Chemistry, Faculty of Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Shuji Kodama
- Department of Chemistry, School of Science, Tokai University, 4-1-1 Kitakaname, Hiratsuka 259-1292, Japan
| | - Atsushi Yamamoto
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
| | - Yoshinori Inoue
- Department of Environmental Applied Chemistry, Faculty of Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan; Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-cho, Toyota 470-0392, Japan
| | - Shigehiro Kagaya
- Department of Environmental Applied Chemistry, Faculty of Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Kazuichi Hayakawa
- Institute of Nature and Environmental Technology, Kanazawa University, O24 Wakemachi, Nomi 923-1224, Japan
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Sakai K, Fuke H, Yoshimura K, Sasaki M, Abe K, Haino S, Hams T, Hasegawa M, Kim KC, Lee MH, Makida Y, Mitchell JW, Nishimura J, Nozaki M, Orito R, Ormes JF, Seo ES, Streitmatter RE, Thakur N, Yamamoto A, Yoshida T. Search for Antideuterons of Cosmic Origin Using the BESS-Polar II Magnetic-Rigidity Spectrometer. Phys Rev Lett 2024; 132:131001. [PMID: 38613296 DOI: 10.1103/physrevlett.132.131001] [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: 05/21/2023] [Revised: 10/21/2023] [Accepted: 01/10/2024] [Indexed: 04/14/2024]
Abstract
We searched for antideuterons (d[over ¯]'s) in the 4.7×10^{9} cosmic-ray events observed during the BESS-Polar II flight at solar minimum in 2007-2008 but found no candidates. The resulting 95% C.L. upper limit on the d[over ¯] flux is 6.7×10^{-5} (m^{2} s sr GeV/n)^{-1} in an energy range from 0.163 to 1.100 GeV/n. The result has improved by more than a factor of 14 from the upper limit of BESS97, which had a potential comparable to that of BESS-Polar II in the search for cosmic-origin d[over ¯]'s and was conducted during the former solar minimum. The upper limit of d[over ¯] flux from BESS-Polar II is the first result achieving the sensitivity to constrain the latest theoretical predictions.
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Affiliation(s)
- K Sakai
- NASA-Goddard Space Flight Center (NASA-GSFC), Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Science and Technology (CRESST)
| | - H Fuke
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara, Kanagawa 252-5210, Japan
| | - K Yoshimura
- Okayama University, Okayama, Okayama 700-8530, Japan
| | - M Sasaki
- NASA-Goddard Space Flight Center (NASA-GSFC), Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Science and Technology (CRESST)
| | - K Abe
- Kobe University, Kobe, Hyogo 657-8501, Japan
| | - S Haino
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Hams
- NASA-Goddard Space Flight Center (NASA-GSFC), Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Science and Technology (CRESST)
| | - M Hasegawa
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K C Kim
- IPST, University of Maryland, College Park, Maryland 20742, USA
| | - M H Lee
- IPST, University of Maryland, College Park, Maryland 20742, USA
| | - Y Makida
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - J W Mitchell
- NASA-Goddard Space Flight Center (NASA-GSFC), Greenbelt, Maryland 20771, USA
| | - J Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara, Kanagawa 252-5210, Japan
- The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - M Nozaki
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - R Orito
- Kobe University, Kobe, Hyogo 657-8501, Japan
| | - J F Ormes
- University of Denver, Denver, Colorado 80208, USA
| | - E S Seo
- IPST, University of Maryland, College Park, Maryland 20742, USA
| | - R E Streitmatter
- NASA-Goddard Space Flight Center (NASA-GSFC), Greenbelt, Maryland 20771, USA
| | - N Thakur
- NASA-Goddard Space Flight Center (NASA-GSFC), Greenbelt, Maryland 20771, USA
| | - A Yamamoto
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Yoshida
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara, Kanagawa 252-5210, Japan
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Fujimoto M, Miyazaki T, Yamamoto A, Ikezawa M, Tanioka S, Nishikawa H, Mizuno M, Suzuki H. A novel approach to evaluation of lumbar bone density using Hounsfield units in volume of interest on computed tomography imaging. J Neurosurg Spine 2024:1-9. [PMID: 38457796 DOI: 10.3171/2024.1.spine231137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 01/08/2024] [Indexed: 03/10/2024]
Abstract
OBJECTIVE The purpose of this retrospective study was to evaluate the relationship between bone mineral density (BMD), as assessed with dual-energy x-ray absorptiometry (DEXA), and Hounsfield units (HU) measured in volumes of interest (VOIs) and regions of interest (ROIs) on lumbar spine CT. METHODS A retrospective analysis was performed on data of lumbar vertebrae obtained from patients who underwent both DEXA and lumbar spine CT scan within a 6-month period. Vertebrae with a history of compression fracture, infectious spondylitis, cement reinforcement, or lumbar surgery were excluded. HU measurements were performed in the VOI and ROI (midaxial, midcoronal, and midsagittal sections) with CT, whereas BMD was assessed with DEXA. Statistical analyses, including correlation assessments and receiver operating characteristic (ROC) curve analyses, were performed. RESULTS This analysis included 712 lumbar vertebrae, with a median patient age of 72.0 years. BMD values and HU measurements in the VOI increased sequentially from L1 to L4, whereas HU values in the ROI did not show a consistent pattern. HU values in the VOI consistently showed a stronger correlation with BMD than those in the ROI. ROC analysis revealed patient-level cutoff values for the diagnosis of osteoporosis at different lumbar vertebral levels with high sensitivity and specificity, as well as an excellent area under the curve. CONCLUSIONS This is the first study to introduce a novel approach using the HU value in the VOI to assess bone health at the lumbar spine. There is a strong correlation between the HU value in the VOI and BMD, and the HU value in the VOI can be used to predict osteoporosis.
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Affiliation(s)
| | - Takahiro Miyazaki
- 2Department of Neurosurgery, Suzuka Kaisei Hospital, Kou-cho, Suzuka, Mie, Japan
| | - Atsushi Yamamoto
- 3Department of Neurosurgery, Mie Prefectural General Medical Center, Hinaga, Yokkaichi, Mie, Japan
| | - Munenari Ikezawa
- 4Department of Neurosurgery, Mie Chuo Medical Center, Hisai-myojin-cho, Tsu, Mie, Japan; and
| | - Satoru Tanioka
- 5Charité Lab for Artificial Intelligence in Medicine, Charité Universitätsmedizin Berlin, Charitéplatz, Berlin, Germany
| | | | - Masaki Mizuno
- 2Department of Neurosurgery, Suzuka Kaisei Hospital, Kou-cho, Suzuka, Mie, Japan
- 6Minimum-Invasive Neurospinal Surgery, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, Japan
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Imasato K, Miyazaki H, Sauerschnig P, Johari KK, Ishida T, Yamamoto A, Ohta M. Achieving Compatible p/n-Type Half-Heusler Compositions in Valence Balanced/Unbalanced Mg 1-xV xNiSb. ACS Appl Mater Interfaces 2024; 16:11637-11645. [PMID: 38408287 DOI: 10.1021/acsami.3c16324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
In thermoelectric and other inorganic materials research, the significance of half-Heusler (HH) compositions following the 18-electron rule has drawn interest in developing and exploiting the potential of intermetallic compounds. For the fabrication of thermoelectric modules, in addition to high-performance materials, having both p- and n-type materials with compatible thermal expansion coefficients is a prerequisite for module development. In this work, the p-type to n-type transition of valence balanced/unbalanced HH composition of Mg1-xVxNiSb was demonstrated by changing the Mg:V chemical ratio. The Seebeck coefficient and power factor of Ti-doped Mg0.57V0.33Ti0.1NiSb are -130 μV K-1 and 0.4 mW m-1 K-2 at 400 K, respectively. In addition, the reduced lattice thermal conductivity (κL < 2.5 W m-1 K-1 at 300 K) of n-type compositions was reported to be much smaller than κL of conventional HH materials. As high thermal conductivity has long been an issue for HH materials, the synthesis of p- and n-type Mg1-xVxNiSb compositions with low lattice thermal conductivity is a promising strategy for producing high-performance HH compounds. Achieving both p- and n-type materials from similar parent composition enabled us to fabricate a thermoelectric module with maximum output power Pmax ∼ 63 mW with a temperature difference of 390 K. This finding supports the benefit of exploring the huge compositional space of valence balanced/unbalanced quaternary HH compositions for further development of thermoelectric devices.
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Affiliation(s)
- Kazuki Imasato
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8569, Japan
- Max Planck Institute for Chemical Physics of Solids, Dresden 01187, Germany
| | - Hidetoshi Miyazaki
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - Philipp Sauerschnig
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8569, Japan
| | - Kishor Kumar Johari
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8569, Japan
| | - Takao Ishida
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8569, Japan
| | - Atsushi Yamamoto
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8569, Japan
| | - Michihiro Ohta
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8569, Japan
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9
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Kawakubo M, Nagao M, Kaimoto Y, Nakao R, Yamamoto A, Kawasaki H, Iwaguchi T, Matsuo Y, Kaneko K, Sakai A, Sakai S. Deep learning approach using SPECT-to-PET translation for attenuation correction in CT-less myocardial perfusion SPECT imaging. Ann Nucl Med 2024; 38:199-209. [PMID: 38151588 PMCID: PMC10884131 DOI: 10.1007/s12149-023-01889-y] [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: 06/25/2023] [Accepted: 11/23/2023] [Indexed: 12/29/2023]
Abstract
OBJECTIVE Deep learning approaches have attracted attention for improving the scoring accuracy in computed tomography-less single photon emission computed tomography (SPECT). In this study, we proposed a novel deep learning approach referring to positron emission tomography (PET). The aims of this study were to analyze the agreement of representative voxel values and perfusion scores of SPECT-to-PET translation model-generated SPECT (SPECTSPT) against PET in 17 segments according to the American Heart Association (AHA). METHODS This retrospective study evaluated the patient-to-patient stress, resting SPECT, and PET datasets of 71 patients. The SPECTSPT generation model was trained (stress: 979 image pairs, rest: 987 image pairs) and validated (stress: 421 image pairs, rest: 425 image pairs) using 31 cases of SPECT and PET image pairs using an image-to-image translation network. Forty of 71 cases of left ventricular base-to-apex short-axis images were translated to SPECTSPT in the stress and resting state (stress: 1830 images, rest: 1856 images). Representative voxel values of SPECT and SPECTSPT in the 17 AHA segments against PET were compared. The stress, resting, and difference scores of 40 cases of SPECT and SPECTSPT were also compared in each of the 17 segments. RESULTS For AHA 17-segment-wise analysis, stressed SPECT but not SPECTSPT voxel values showed significant error from PET at basal anterior regions (segments #1, #6), and at mid inferoseptal regions (segments #8, #9, and #10). SPECT, but not SPECTSPT, voxel values at resting state showed significant error at basal anterior regions (segments #1, #2, and #6), and at mid inferior regions (segments #8, #9, and #11). Significant SPECT overscoring was observed against PET in basal-to-apical inferior regions (segments #4, #10, and #15) during stress. No significant overscoring was observed in SPECTSPT at stress, and only moderate over and underscoring in the basal inferior region (segment #4) was found in the resting and difference states. CONCLUSIONS Our PET-supervised deep learning model is a new approach to correct well-known inferior wall attenuation in SPECT myocardial perfusion imaging. As standalone SPECT systems are used worldwide, the SPECTSPT generation model may be applied as a low-cost and practical clinical tool that provides powerful auxiliary information for the diagnosis of myocardial blood flow.
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Affiliation(s)
- Masateru Kawakubo
- Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Michinobu Nagao
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-Ku, Tokyo, 162-8666, Japan.
| | - Yoko Kaimoto
- Department of Radiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Risako Nakao
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Hiroshi Kawasaki
- Department of Advanced Information Technology, Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
| | - Takafumi Iwaguchi
- Department of Advanced Information Technology, Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
| | - Yuka Matsuo
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
| | - Koichiro Kaneko
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
| | - Akiko Sakai
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Shuji Sakai
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
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10
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Sakai A, Nagao M, Yamamoto A, Nakao R, Sakai S, Yamaguchi J. Prognostic value of right atrial strain in systemic sclerosis based on tissue tracking analysis using cine cardiac magnetic resonance imaging: a retrospective observational study. Heart Vessels 2024; 39:135-143. [PMID: 37777970 DOI: 10.1007/s00380-023-02320-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 09/14/2023] [Indexed: 10/03/2023]
Abstract
Interstitial lung disease and cardiac involvement are common manifestations and prognostic factors of systemic sclerosis. However, it is unclear whether impaired right atrial function associated with interstitial lung disease in systemic sclerosis can be used as a prognostic factor in this patient population. Therefore, this study aimed to investigate the relationship between right atrial function, interstitial lung disease, and prognosis in patients with systemic sclerosis using tissue tracking analysis with cine cardiac magnetic resonance imaging. In this retrospective observational study, a total of 40 patients with systemic sclerosis were enrolled. Tissue tracking analysis was used to obtain time curves of right atrial strain. Reservoir (total strain), conduit (passive strain), and booster (active strain) pump function were calculated, and right atrial strain, interstitial lung disease, and clinical outcomes were examined. An adverse clinical event was defined as all-cause death. Overall, 23 patients had interstitial lung disease (58%). Six patients died during the follow-up (median, 44 months). The total skin score and right ventricular systolic pressure on echocardiography were higher in patients with an event than in those without an event (28 ± 16% vs. 13 ± 13%, P = 0.02; 46.3 ± 10.7 mmHg vs. 36.0 ± 8.5 mmHg, P = 0.01, respectively). Further, right atrial total strain and active strain were significantly lower in patients with an event than in those without an event (14.3 ± 11.3% vs. 25.8 ± 11.4%, P = 0.03; 3.48 ± 2.37 vs. 11.7 ± 6.78, P = 0.007, respectively). Multivariate analysis revealed that active strain was an independent predictor of all-cause death (hazard ratio 0.76, P = 0.029). Kaplan-Meier analysis revealed that the survival rate was significantly higher in patients with right atrial active strain levels above the cutoff 7.4 (P < 0.05). In systemic sclerosis, right atrial booster function was predictive of mortality. Hence, right atrial functional assessment may have incremental prognostic value for patients with systemic sclerosis, leading to better risk stratification.
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Affiliation(s)
- Akiko Sakai
- Department of Cardiology, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjyuku-Ku, Tokyo, 162-8666, Japan.
| | - Michinobu Nagao
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjyuku-Ku, Tokyo, 162-8666, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjyuku-Ku, Tokyo, 162-8666, Japan
| | - Risako Nakao
- Department of Cardiology, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjyuku-Ku, Tokyo, 162-8666, Japan
| | - Shuji Sakai
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjyuku-Ku, Tokyo, 162-8666, Japan
| | - Junichi Yamaguchi
- Department of Cardiology, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjyuku-Ku, Tokyo, 162-8666, Japan
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11
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Kaneko K, Nagao M, Yamamoto A, Yano K, Honda G, Tokushige K, Sakai S. Patlak Reconstruction Using Dynamic 18 F-FDG PET Imaging for Evaluation of Malignant Liver Tumors : A Comparison of HCC, ICC, and Metastatic Liver Tumors. Clin Nucl Med 2024; 49:116-123. [PMID: 38108830 DOI: 10.1097/rlu.0000000000005013] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
PURPOSE OF THE REPORT The aim of this study was to explore the different patterns of dynamic whole-body (D-WB) FDG PET/CT parameters among liver malignancy types as potential diagnostic clues and investigate the association between static and dynamic PET/CT parameters for each tumor histology. PATIENTS AND METHODS Seventy-one patients with intrahepatic cholangiocarcinoma (ICC), metastatic liver tumor (MLT), or hepatocellular carcinoma (HCC) who underwent D-WB and static dual-time-point FDG PET/CT were enrolled. We obtained Pearson correlation coefficients between the metabolic rate of FDG (MR FDG ; mg/min/ 100ml) or distribution volume of free FDG (DV FDG , %) and static PET/CT parameters. We compared MR FDG and DV FDG values by tumor type and performed receiver operating characteristic analyses for MR FDG and static images. RESULTS A total of 12 ICC, 116 MLT, and 36 HCC lesions were analyzed. MR FDG and DV FDG showed excellent correlation with early (SUV e ) and delayed SUV max (SUV d ) ( r = 0.71~0.97), but DV FDG in the HCC lesions did not ( r = 0.62 and 0.69 for SUV e and SUV d , respectively) ( P < 0.001 for all). HCC lesions showed significantly lower MR FDG (2.43 ± 1.98) and DV FDG (139.95 ± 62.58) than ICC (5.02 ± 3.56, 207.06 ± 97.13) and MLT lesions (4.51 ± 2.47, 180.13 ± 75.58) ( P < 0.01 for all). The optimal MR FDG could differentiate HCC from ICC and MLT with areas under the curve of 0.84 and 0.80, respectively. Metastatic liver tumor lesions showed the widest distribution of MR FDG and DV FDG values but with no significant difference among most primary sites. CONCLUSIONS MR FDG was strongly correlated with SUV max in the 3 malignancies and showed utility for differentiating HCC from ICC and MLT. Each tumor type has a different glucose metabolism, and D-WB FDG PET/CT imaging has the potential to visualize those differences.
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Affiliation(s)
- Koichiro Kaneko
- From the Department of Diagnostic Imaging & Nuclear Medicine
| | - Michinobu Nagao
- From the Department of Diagnostic Imaging & Nuclear Medicine
| | | | - Kyoko Yano
- From the Department of Diagnostic Imaging & Nuclear Medicine
| | - Goro Honda
- Department of Surgery, Institute of Gastroenterology
| | - Katsutoshi Tokushige
- Department of Internal Medicine, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Shuji Sakai
- From the Department of Diagnostic Imaging & Nuclear Medicine
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12
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Yamamoto A, Shimizu H, Takiguchi K, Shoda K, Shiraishi K, Furuya S, Akaike H, Kawaguchi Y, Amemiya H, Kawaida H, Mochizuki K, Kondo T, Ichikawa D. The Expression and Role of Aquaporin 4 in Colon Cancer. Anticancer Res 2024; 44:567-573. [PMID: 38307548 DOI: 10.21873/anticanres.16845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/25/2023] [Accepted: 12/26/2023] [Indexed: 02/04/2024]
Abstract
BACKGROUND/AIM Aquaporins (AQPs) were initially discovered as water channel proteins that facilitate transcellular water movements. Recent studies have shown that AQPs are expressed and play an oncogenic role in various cancers. However, the expression and role of Aquaporin 4 (AQP4) in colon cancer have not been investigated. This study aimed to examine the clinical and pathophysiologic significance of AQP4 in colon cancer. PATIENTS AND METHODS Immunohistochemistry (IHC) of AQP4 for 145 primary tumor samples obtained from patients with stage II or III colon cancer was performed, and the relationship between AQP4 expression and patients' prognoses was analyzed. Knockdown experiments with AQP4 small interfering RNA using human colon cancer cells were conducted to analyze the effects on cell invasiveness. RESULTS IHC revealed that AQP4 was scarcely expressed in the noncancerous colonic mucosa. Of the 145 patients who enrolled in this study, 109 (75.2%) and 36 (24.8%) patients were classified as negative and positive for AQP4 expression, respectively. A high level of AQP4 expression is significantly associated with deeper tumors with lymph node metastasis and venous invasion. A 5-year progression-free survival rate of AQP4-positive patients was significantly worse than that of AQP-4 negative patients (70.7% vs. 87.0%, p=0.049). Furthermore, AQP4 knockdown significantly inhibited cell migration and invasion in HCT116 cells. CONCLUSION AQP4 may be a novel biomarker and therapeutic target for colon cancer.
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Affiliation(s)
- Atsushi Yamamoto
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hiroki Shimizu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan;
| | - Koichi Takiguchi
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Katsutoshi Shoda
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kensuke Shiraishi
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shinji Furuya
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hidenori Akaike
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yoshihiko Kawaguchi
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hidetake Amemiya
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hiromichi Kawaida
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kunio Mochizuki
- Department of Pathology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Tetsuo Kondo
- Department of Pathology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Daisuke Ichikawa
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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13
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Wang JT, Li L, Niu M, Zhu QL, Zhao ZW, Kotani K, Yamamoto A, Zhang HJ, Li SX, Xu D, Kang N, Li XG, Zhang KP, Sun J, Wu FZ, Zhang HL, Liu DX, Lyu MH, Ji JS, Kawada N, Xu K, Qi XL. [HVPG minimally invasive era: exploration based on forearm venous approach]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:35-39. [PMID: 38320789 DOI: 10.3760/cma.j.cn501113-20231220-00289] [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] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Objective: The transjugular or transfemoral approach is used as a common method for hepatic venous pressure gradient (HVPG) measurement in current practice. This study aims to confirm the safety and effectiveness of measuring HVPG via the forearm venous approach. Methods: Prospective recruitment was conducted for patients with cirrhosis who underwent HVPG measurement via the forearm venous approach at six hospitals in China and Japan from September 2020 to December 2020. Patients' clinical baseline information and HVPG measurement data were collected. The right median cubital vein or basilic vein approach for all enrolled patients was selected. The HVPG standard process was used to measure pressure. Research data were analyzed using SPSS 22.0 statistical software. Quantitative data were used to represent medians (interquartile ranges), while qualitative data were used to represent frequency and rates. The correlation between two sets of data was analyzed using Pearson correlation analysis. Results: A total of 43 cases were enrolled in this study. Of these, 41 (95.3%) successfully underwent HVPG measurement via the forearm venous approach. None of the patients had any serious complications. The median operation time for HVPG detection via forearm vein was 18.0 minutes (12.3~38.8 minutes). This study confirmed that HVPG was positively closely related to Child-Pugh score (r = 0.47, P = 0.002), albumin-bilirubin score (r = 0.37, P = 0.001), Lok index (r = 0.36, P = 0.02), liver stiffness (r = 0.58, P = 0.01), and spleen stiffness (r = 0.77, P = 0.01), while negatively correlated with albumin (r = -0.42, P = 0.006). Conclusion: The results of this multi-centre retrospective study suggest that HVPG measurement via the forearm venous approach is safe and feasible.
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Affiliation(s)
- J T Wang
- Hebei Province Key Laboratory of Hepatocirrhosis and Portal Hypertension, Xingtai People's Hospital Affiliated to Hebei Medical University, Xingtai 054000, China
| | - L Li
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - M Niu
- Interventional Department, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - Q L Zhu
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Lanzhou 646000, China
| | - Z W Zhao
- Interventional Diagnosis and Treatment Center, Lishui Central Hospital,Lishui 323000, China
| | - K Kotani
- Department of Hepatology, Osaka Municipal University Hospital, Osaka City, Japan
| | - A Yamamoto
- Department of Interventional Radiology, Faculty of Medicine, Osaka City University, Osaka City, Japan
| | - H J Zhang
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - S X Li
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - D Xu
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - N Kang
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - X G Li
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - K P Zhang
- Hebei Province Key Laboratory of Hepatocirrhosis and Portal Hypertension, Xingtai People's Hospital Affiliated to Hebei Medical University, Xingtai 054000, China
| | - J Sun
- Interventional Department, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - F Z Wu
- Interventional Diagnosis and Treatment Center, Lishui Central Hospital,Lishui 323000, China
| | - H L Zhang
- Interventional Diagnosis and Treatment Center, Lishui Central Hospital,Lishui 323000, China
| | - D X Liu
- Hebei Province Key Laboratory of Hepatocirrhosis and Portal Hypertension, Xingtai People's Hospital Affiliated to Hebei Medical University, Xingtai 054000, China
| | - M H Lyu
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Lanzhou 646000, China
| | - J S Ji
- Interventional Diagnosis and Treatment Center, Lishui Central Hospital,Lishui 323000, China
| | - N Kawada
- Department of Hepatology, Osaka Municipal University Hospital, Osaka City, Japan
| | - K Xu
- Interventional Department, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - X L Qi
- Portal Hypertension Centers, Southeast University Affiliated Zhongda Hospital, Nanjing 210009,China
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14
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Sakai A, Nagao M, Yamamoto A, Nakao R, Arashi H, Momose M, Sato K, Yamaguchi J. 13N-ammonia positron emission tomography for diagnosis and monitoring of ischemia without obstructive coronary artery disease. Int J Cardiol 2024; 395:131392. [PMID: 37748522 DOI: 10.1016/j.ijcard.2023.131392] [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: 06/27/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND Ischemia with no obstructive coronary arteries (INOCA), a chronic disorder with a poor prognosis, remains challenging to diagnose. 13N-ammonia positron emission tomography (13NH3 PET), which can quantify microcirculation, is its most reliable detection method. We aimed to investigate the differences in 13NH3 PET findings between INOCA and coronary artery disease (CAD). METHODS Overall, consecutive 433 patients with known or suspected CAD underwent adenosine-stress 13NH3 PET. Based on the European Society of Cardiology guidelines, INOCA was defined as typical angina without coronary stenosis (INOCA n = 45, CAD n = 293, no CAD n = 95). Papillary muscle ischemia (PMI) and global myocardial flow reserve (MFR) were examined as microvascular injuries using 13NH3 PET. RESULTS PMI was observed significantly more frequently in patients with INOCA than in those with CAD (40.0% vs. 11.6%, respectively; p = 0.02). Global MFR (1.84 ± 0.54 vs. 2.08 ± 0.66, respectively; p < 0.0001) and reactive hyperemia index were significantly lower in patients with INOCA than in those with CAD. Forty-five major adverse cardiac events (MACE) were recorded in a median follow-up time of 827 days. Kaplan-Meier analysis revealed that the survival rate worsened in patients with INOCA and PMI (log-rank test, p = 0.001). In the Cox proportional hazards model, PMI was an independent predictive factor for MACE (odds ratio, 4.16; 95% confidence interval, 2.13-8.15; p < 0.0001). CONCLUSIONS PMI presence and decreased MFR were 13NH3 PET findings characteristic of INOCA. 13NH3 PET can be used to monitor the treatment course.
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Affiliation(s)
- Akiko Sakai
- Department of Cardiology, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo 162-8666, Japan.
| | - Michinobu Nagao
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo 162-8666, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo 162-8666, Japan
| | - Risako Nakao
- Department of Cardiology, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo 162-8666, Japan
| | - Hiroyuki Arashi
- Department of Cardiology, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo 162-8666, Japan
| | - Mitsuru Momose
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo 162-8666, Japan
| | - Kayoko Sato
- Department of Cardiology, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo 162-8666, Japan
| | - Junichi Yamaguchi
- Department of Cardiology, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo 162-8666, Japan
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15
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Staplin N, Haynes R, Judge PK, Wanner C, Green JB, Emberson J, Preiss D, Mayne KJ, Ng SYA, Sammons E, Zhu D, Hill M, Stevens W, Wallendszus K, Brenner S, Cheung AK, Liu ZH, Li J, Hooi LS, Liu WJ, Kadowaki T, Nangaku M, Levin A, Cherney D, Maggioni AP, Pontremoli R, Deo R, Goto S, Rossello X, Tuttle KR, Steubl D, Petrini M, Seidi S, Landray MJ, Baigent C, Herrington WG, Abat S, Abd Rahman R, Abdul Cader R, Abdul Hafidz MI, Abdul Wahab MZ, Abdullah NK, Abdul-Samad T, Abe M, Abraham N, Acheampong S, Achiri P, Acosta JA, Adeleke A, Adell V, Adewuyi-Dalton R, Adnan N, Africano A, Agharazii M, Aguilar F, Aguilera A, Ahmad M, Ahmad MK, Ahmad NA, Ahmad NH, Ahmad NI, Ahmad Miswan N, Ahmad Rosdi H, Ahmed I, Ahmed S, Ahmed S, Aiello J, Aitken A, AitSadi R, Aker S, Akimoto S, Akinfolarin A, Akram S, Alberici F, Albert C, Aldrich L, Alegata M, Alexander L, Alfaress S, Alhadj Ali M, Ali A, Ali A, Alicic R, Aliu A, Almaraz R, Almasarwah R, Almeida J, Aloisi A, Al-Rabadi L, Alscher D, Alvarez P, Al-Zeer B, Amat M, Ambrose C, Ammar H, An Y, Andriaccio L, Ansu K, Apostolidi A, Arai N, Araki H, Araki S, Arbi A, Arechiga O, Armstrong S, Arnold T, Aronoff S, Arriaga W, Arroyo J, Arteaga D, Asahara S, Asai A, Asai N, Asano S, Asawa M, Asmee MF, Aucella F, Augustin M, Avery A, Awad A, Awang IY, Awazawa M, Axler A, Ayub W, Azhari Z, Baccaro R, Badin C, Bagwell B, Bahlmann-Kroll E, Bahtar AZ, Baigent C, Bains D, Bajaj H, Baker R, Baldini E, Banas B, Banerjee D, Banno S, Bansal S, Barberi S, Barnes S, Barnini C, Barot C, Barrett K, Barrios R, Bartolomei Mecatti B, Barton I, Barton J, Basily W, Bavanandan S, Baxter A, Becker L, Beddhu S, Beige J, Beigh S, Bell S, Benck U, Beneat A, Bennett A, Bennett D, Benyon S, Berdeprado J, Bergler T, Bergner A, Berry M, Bevilacqua M, Bhairoo J, Bhandari S, Bhandary N, Bhatt A, Bhattarai M, Bhavsar M, Bian W, Bianchini F, Bianco S, Bilous R, Bilton J, Bilucaglia D, Bird C, Birudaraju D, Biscoveanu M, Blake C, Bleakley N, Bocchicchia K, Bodine S, Bodington R, Boedecker S, Bolduc M, Bolton S, Bond C, Boreky F, Boren K, Bouchi R, Bough L, Bovan D, Bowler C, Bowman L, Brar N, Braun C, Breach A, Breitenfeldt M, Brenner S, Brettschneider B, Brewer A, Brewer G, Brindle V, Brioni E, Brown C, Brown H, Brown L, Brown R, Brown S, Browne D, Bruce K, Brueckmann M, Brunskill N, Bryant M, Brzoska M, Bu Y, Buckman C, Budoff M, Bullen M, Burke A, Burnette S, Burston C, Busch M, Bushnell J, Butler S, Büttner C, Byrne C, Caamano A, Cadorna J, Cafiero C, Cagle M, Cai J, Calabrese K, Calvi C, Camilleri B, Camp S, Campbell D, Campbell R, Cao H, Capelli I, Caple M, Caplin B, Cardone A, Carle J, Carnall V, Caroppo M, Carr S, Carraro G, Carson M, Casares P, Castillo C, Castro C, Caudill B, Cejka V, Ceseri M, Cham L, Chamberlain A, Chambers J, Chan CBT, Chan JYM, Chan YC, Chang E, Chang E, Chant T, Chavagnon T, Chellamuthu P, Chen F, Chen J, Chen P, Chen TM, Chen Y, Chen Y, Cheng C, Cheng H, Cheng MC, Cherney D, Cheung AK, Ching CH, Chitalia N, Choksi 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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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Ikenaga H, Masuda T, Yamamoto A, Moriwake R, Yoshida K, Ishikawa T, Yao D, Ono A, Hiratsuka J, Tamada T. Influence of splenomegaly on aortic and liver parenchymal CT numbers during contrast-enhance CT in patients with cirrhosis. Radiography (Lond) 2024; 30:382-387. [PMID: 38150883 DOI: 10.1016/j.radi.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 12/05/2023] [Accepted: 12/10/2023] [Indexed: 12/29/2023]
Abstract
INTRODUCTION To compare CT (computed tomography) values for enhancement of the abdominal aorta and liver parenchyma during dynamic contrast enhancement (CE) CT in cirrhotic patients with and without splenomegaly (SM). METHODS We considered 258 patients (83 males and 46 females for the splenomegaly group, and 83 males and 46 females for the control group) for this retrospective study. We measured CT values in the abdominal aorta and hepatic parenchyma during the hepatic arterial (HAP) and portal venous (PVP) phases. The aortic CE at HAP and the hepatic parenchymal CE at PVP were compared between the two groups. For success rate of scans, we also calculated the optimal CE rates (>280 HU in the abdominal aorta and >50 HU in the hepatic parenchyma) for each group. RESULTS In the SM group, the CE for abdominal aorta was decreased during the aortic phase for a dynamic CE-CT (p < 0.05). When evaluating the success rates, they were found to be 65.1 % and 58.9 % in the SM group and 81.4 % and 72.3 % in the non-SM group (p < 0.05). CONCLUSION The success rate of scans and CE for the abdominal aorta during the aortic phase exhibited a significant decrease during dynamic CE-CT scans on patients with SM. Patients with SM may have reduced diagnostic ability with typical contrast injection protocols. IMPLICATIONS FOR PRACTICE It may be necessary to change the injection rates and contrast medium volume during CE-CT depending on the presence or absence of SM.
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Affiliation(s)
- H Ikenaga
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - T Masuda
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288, Matsushima, Kurashiki, Okayama, 701-0193, Japan.
| | - A Yamamoto
- Department of Radiology, Kawasaki Medical School, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - R Moriwake
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - K Yoshida
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - T Ishikawa
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - D Yao
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - A Ono
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288, Matsushima, Kurashiki, Okayama, 701-0193, Japan
| | - J Hiratsuka
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288, Matsushima, Kurashiki, Okayama, 701-0193, Japan
| | - T Tamada
- Department of Radiology, Kawasaki Medical School, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
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T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Uy ALT, Yamamoto A, Matsuda M, Arae T, Hasunuma T, Demura T, Ohtani M. The Carbon Flow Shifts from Primary to Secondary Metabolism during Xylem Vessel Cell Differentiation in Arabidopsis thaliana. Plant Cell Physiol 2023; 64:1563-1575. [PMID: 37875012 PMCID: PMC10734892 DOI: 10.1093/pcp/pcad130] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 10/12/2023] [Accepted: 10/23/2023] [Indexed: 10/26/2023]
Abstract
Xylem vessel cell differentiation is characterized by the deposition of a secondary cell wall (SCW) containing cellulose, hemicellulose and lignin. VASCULAR-RELATED NAC-DOMAIN7 (VND7), a plant-specific NAC (NAM, ATAF1/2, and CUC2) transcription factor, is a master regulator of xylem vessel cell differentiation in Arabidopsis (Arabidopsis thaliana). Previous metabolome analysis using the VND7-inducible system in tobacco BY-2 cells successfully revealed significant quantitative changes in primary metabolites during xylem vessel cell differentiation. However, the flow of primary metabolites is not yet well understood. Here, we performed a metabolomic analysis of VND7-inducible Arabidopsis T87 suspension cells. Capillary electrophoresis-time-of-flight mass spectrometry quantified 57 metabolites, and subsequent data analysis highlighted active changes in the levels of UDP-glucose and phenylalanine, which are building blocks of cellulose and lignin, respectively. In a metabolic flow analysis using stable carbon 13 (13C) isotope, the 13C-labeling ratio specifically increased in 3-phosphoglycerate after 12 h of VND7 induction, followed by an increase in shikimate after 24 h of induction, while the inflow of 13C into lactate from pyruvate was significantly inhibited, indicating an active shift of carbon flow from glycolysis to the shikimate pathway during xylem vessel cell differentiation. In support of this notion, most glycolytic genes involved in the downstream of glyceraldehyde 3-phosphate were downregulated following the induction of xylem vessel cell differentiation, whereas genes for the shikimate pathway and phenylalanine biosynthesis were upregulated. These findings provide evidence for the active shift of carbon flow from primary metabolic pathways to the SCW polymer biosynthetic pathway at specific points during xylem vessel cell differentiation.
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Affiliation(s)
| | - Atsushi Yamamoto
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8562 Japan
| | - Mami Matsuda
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo, 657-8501 Japan
| | - Toshihiro Arae
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8562 Japan
| | - Tomohisa Hasunuma
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo, 657-8501 Japan
- Engineering Biology Research Center, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo, 657-8501 Japan
| | - Taku Demura
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma, Nara, 630-0192 Japan
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-Cho, Tsurumi-Ku, Yokohama, Kanagawa, 230-0045 Japan
| | - Misato Ohtani
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma, Nara, 630-0192 Japan
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8562 Japan
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-Cho, Tsurumi-Ku, Yokohama, Kanagawa, 230-0045 Japan
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Yamamoto A, Nagao M, Inai K, Shinkawa T. Coronary microvascular dysfunction detected by 13N-ammonia positron emission tomography in a patient with repaired aortic coarctation. J Nucl Cardiol 2023; 30:2819-2822. [PMID: 36977897 DOI: 10.1007/s12350-023-03254-y] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 03/05/2023] [Indexed: 03/30/2023]
Affiliation(s)
- Atsushi Yamamoto
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawadacho, Shinjuku-Ku, Tokyo, 162-8666, Japan
| | - Michinobu Nagao
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawadacho, Shinjuku-Ku, Tokyo, 162-8666, Japan.
| | - Kei Inai
- Department of Pediatric and Adult Congenital Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Takeshi Shinkawa
- Department of Cardiovascular Surgery, Tokyo Women's Medical University, Tokyo, Japan
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Sato Y, Matsunaga R, Tasumi S, Mizuno N, Nakane M, Hosoya S, Yamamoto A, Nakamura O, Tsutsui S, Shiozaki K, Kikuchi K. l-fucoside localization in the gills of the genus Takifugu and its possible implication in the parasitism of Heterobothrium okamotoi (Monogenea: Diclidophoridae). Biochim Biophys Acta Gen Subj 2023; 1867:130467. [PMID: 37777092 DOI: 10.1016/j.bbagen.2023.130467] [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: 07/22/2023] [Revised: 09/11/2023] [Accepted: 09/19/2023] [Indexed: 10/02/2023]
Abstract
BACKGROUND The monogenean parasite Heterobothrium okamotoi only parasitizes the gills of Takifugu rubripes. In this study, we hypothesized that the carbohydrates contribute to high host specificity of H. okamotoi. METHODS T. rubripes, T. niphobles, T. snyderi, and T. pardalis were used for UEA I staining of the gills and an in vivo challenge test against H. okamotoi. To examine the effect of l-fucose, an in vitro detachment test was conducted using the host's gills. Additionally, fucosylated proteins were isolated from the membrane proteins of T. niphobles gills. RESULTS The location of l-fucoside and the infection dynamics in four species were correlated to some extent; H. okamotoi detached relatively quickly from T. niphobles possessing l-fucoside both on the surface of the gills and in certain types of cells, including mucus cells, but detached slowly from T. snyderi possessing l-fucoside in only certain types of cells, including mucus cells. Under the conditions examined, H. okamotoi exhibited minimal detachment from T. rubripes and T. pardalis, and l-fucoside was not detected. The significantly higher detachment rate of H. okamotoi from the host's gills incubated in l-fucose-containing medium compared with the controls suggests that l-fucose in the non-host gills induced detachment of H. okamotoi. Four fucosylated proteins, including mucin5AC-like, were identified as potential factors for the detachment of H. okamotoi. CONCLUSIONS Fucosylated proteins covering the surface of non-host gills might contribute to H. okamotoi detachment. GENERAL SIGNIFICANCE This research shows the possible involvement of oligosaccharides in the host specificity of monogenean parasites.
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Affiliation(s)
- Yoshiki Sato
- Fisheries Laboratory, Graduate School of Agricultural and Life sciences, The University of Tokyo, 2971-4 Bentenjima, Maisaka, Nishi-ku, Hamamatsu, Shizuoka 431-0214, Japan
| | - Ryohei Matsunaga
- Fisheries Laboratory, Graduate School of Agricultural and Life sciences, The University of Tokyo, 2971-4 Bentenjima, Maisaka, Nishi-ku, Hamamatsu, Shizuoka 431-0214, Japan
| | - Satoshi Tasumi
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, Kagoshima 890-0065, Japan.
| | - Naoki Mizuno
- Fisheries Laboratory, Graduate School of Agricultural and Life sciences, The University of Tokyo, 2971-4 Bentenjima, Maisaka, Nishi-ku, Hamamatsu, Shizuoka 431-0214, Japan
| | - Motoyuki Nakane
- Kumamoto Prefectural Fisheries Research Center, 2450-2 Oyanomachinaka, Amakusa, Kumamoto 869-3603, Japan
| | - Sho Hosoya
- Fisheries Laboratory, Graduate School of Agricultural and Life sciences, The University of Tokyo, 2971-4 Bentenjima, Maisaka, Nishi-ku, Hamamatsu, Shizuoka 431-0214, Japan
| | - Atsushi Yamamoto
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, Kagoshima 890-0065, Japan
| | - Osamu Nakamura
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Shigeyuki Tsutsui
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Kazuhiro Shiozaki
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, Kagoshima 890-0065, Japan
| | - Kiyoshi Kikuchi
- Fisheries Laboratory, Graduate School of Agricultural and Life sciences, The University of Tokyo, 2971-4 Bentenjima, Maisaka, Nishi-ku, Hamamatsu, Shizuoka 431-0214, Japan
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Yamamoto A, Inui T, Suzuki D, Urayama K. Stress-independent delay time in yielding of dilute colloidal gels. Soft Matter 2023; 19:9082-9091. [PMID: 37987474 DOI: 10.1039/d3sm01238g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
We investigate the yielding under shear for dilute poly(N-isopropyl acrylamide-co-fumaric acid) (PNIPAM-FAc) colloidal gels obtained above the volume phase transition temperature. In this temperature range, the microgel suspensions form colloidal gels due to hydrophobic interparticle interactions under appropriate pH and ionic strength conditions. Step-strain tests revealed that yielding occurs when the applied strain exceeds a specific threshold, requiring a finite, stress-independent delay time (tD). This is distinct from previous findings on delayed yielding in other colloidal gels, where tD decreases with increasing stress. In the start-up shear tests, yield strain (γy) at a higher strain rate () increases with escalating , while γy at lower remains constant. This characteristic γy- relationship is successfully explained by a simple model using the stress-independent tD value without an adjustable fitting parameter. The distinctive yielding behavior, underscored by a stress-independent tD, is expected to originate from strain-induced macroscopic phase separation into a dense colloidal gel and water, observable separately from rheological measurements.
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Affiliation(s)
- Atsushi Yamamoto
- Department of Macromolecular Science and Engineering, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606-8585, Japan
| | - Takumi Inui
- Graduate School of Textile Science & Technology, Shinshu University, Ueda 386-8567, Japan.
| | - Daisuke Suzuki
- Graduate School of Textile Science & Technology, Shinshu University, Ueda 386-8567, Japan.
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Ueda 386-8567, Japan
| | - Kenji Urayama
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
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Yamamoto A, Nagao M, Shirai Y, Nakao R, Sakai A, Kaneko K, Arashi H, Minami Y, Sakai S, Yamaguchi J. Cardiac magnetic resonance imaging T1 mapping and late gadolinium enhancement entropy: Prognostic value in patients with systemic sclerosis. J Cardiol 2023; 82:343-348. [PMID: 37031795 DOI: 10.1016/j.jjcc.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 04/11/2023]
Abstract
BACKGROUND Systemic sclerosis (SSc) affects the myocardium, thereby resulting in a poor prognosis. Late gadolinium enhancement (LGE) entropy, derived from routine cardiac magnetic resonance (CMR) LGE images, is an index that reflects the complexity of the left ventricular myocardium. The aim of this study was to investigate whether LGE entropy can serve as a prognostic factor in patients with SSc. METHODS Twenty-four patients with SSc, who underwent CMR-T1 mapping and LGE to identify myocardial damage, were enrolled, and LGE entropy was measured. Extracellular volume (ECV) values were calculated using the same CMR-LGE images. The endpoint was major adverse cardiac events (MACEs), comprising all-cause death, hospitalization due to heart failure, and the onset of sustained ventricular tachycardia and ventricular fibrillation. The ability to predict MACE was assessed using receiver operating characteristic (ROC) analysis, and the predictability of LGE entropy was analyzed using Kaplan-Meier analysis. RESULTS The ROC curve analysis demonstrated a cut-off value of 7.39 for MACE with LGE entropy and had a sensitivity and specificity of 80 % and 79 %, respectively. Patients with LGE entropy ≥7.39 had a significantly higher MACE rate than those with LGE entropy <7.39 (p = 0.010). Moreover, LGE entropy ≥7.39 was a poor prognostic factor in patients without elevated ECV values. CONCLUSIONS LGE entropy can be used to predict MACE and allows for further risk stratification in addition to ECV determination.
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Affiliation(s)
- Atsushi Yamamoto
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan; Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan.
| | - Michinobu Nagao
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Yurie Shirai
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Risako Nakao
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Akiko Sakai
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Koichiro Kaneko
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Hiroyuki Arashi
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Yuichiro Minami
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Shuji Sakai
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Junichi Yamaguchi
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
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Nishijima S, Nagao M, Yamamoto A, Ichihara Y, Niinami H. Coronary artery bypass grafting transiently improves myocardial flow reserve in patients with impaired left ventricular function. Int J Cardiol 2023; 390:131231. [PMID: 37536422 DOI: 10.1016/j.ijcard.2023.131231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/14/2023] [Accepted: 07/28/2023] [Indexed: 08/05/2023]
Abstract
BACKGROUND Myocardial flow reserve (MFR) derived from 13N-ammonia positron emission tomography is an index used to evaluate ischemic cardiomyopathy and predict the prognosis of patients with coronary artery disease (CAD). This study aimed to evaluate the short-term changes in MFR in patients who underwent coronary artery bypass grafting (CABG). In addition, as a reference, we showed the changes in MFR in the percutaneous coronary intervention (PCI) and optimal medical therapy (OMT) patient groups. METHODS To determine the short-term effects of CABG in CAD with left ventricular dysfunction, myocardial blood flow (MBF) and MFR were measured before and after CABG. Additionally, we showed changes in MBF and MFR of the PCI and OMT patient groups during treatment. RESULTS We observed that resting MBF did not significantly increase from baseline to post-CABG (0.84 ± 0.32 vs. 0.83 ± 0.23, P = 0.958); however, stress MBF increased significantly from baseline to post-CABG (1.23 ± 0.64 vs. 1.49 ± 0.42, P < 0.001). The global MFR increased significantly from baseline to post-CABG (1.49 ± 0.42 mL/g/min vs. 1.91 ± 0.51 mL/g/min, P < 0.001). Additionally, stress and resting ejection fraction (EF) significantly increased (stress EF: 42 ± 18.7% vs. 50.9 ± 18%, P = 0.005; resting EF: 45.8 ± 19.5% vs. 52.1 ± 19.4%, P = 0.031). CONCLUSIONS This study demonstrated that CABG significantly improved MFR in a short period of time with left ventricular dysfunction. These findings suggest that epicardial coronary artery patency restores myocardial microcirculatory dysfunction in the short term.
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Affiliation(s)
- Shuhei Nishijima
- Department of Cardiovascular Surgery, Tokyo Women's Medical University, Tokyo, Japan.
| | - Michinobu Nagao
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Yuki Ichihara
- Department of Cardiovascular Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hiroshi Niinami
- Department of Cardiovascular Surgery, Tokyo Women's Medical University, Tokyo, Japan
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Kaimoto Y, Fukushima K, Kanaya K, Asanuma M, Aoba K, Yamamoto A, Nakao R, Kaneko K, Nagao M, Chida K. Optimization of Intraventricular Radioactive Concentration for 13N ammonia PET with Time-of-Flight Scanner: Simplified Phantom Study with Noise Equivalent Count Rate Analysis. Ann Nucl Cardiol 2023; 9:33-39. [PMID: 38058574 PMCID: PMC10696149 DOI: 10.17996/anc.23-00178] [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] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/02/2023] [Accepted: 02/09/2023] [Indexed: 12/08/2023]
Abstract
Background: Myocardial blood flow quantification (MBF) is one of the distinctive features for cardiac positron emission tomography. The MBF calculation is mostly obtained by estimating the input function from the time activity curve in dynamic scan. However, there is a substantial risk of count-loss because the high radioactivity pass through the left ventricular (LV) cavity within a short period. We aimed to determine the optimal intraventricular activity using the noise equivalent count rate (NECR) analysis with simplified phantom model. Methods: Positron emission tomography computed tomography scanner with LYSO crystal and time of flight was used for phantom study. 150 MBq/mL of 13N was filled in 10 mL of syringe, placed in neck phantom to imitate end-systolic small LV. 3D list-mode acquisition was repeatedly performed along radioactive decay. Net true and random count rate were calculated and compared to the theoretical activity in the syringe. NECR curve analysis was used to determine the optimal radioactive concentration. Result: The attenuation curves showed good correlation to the theoretical activity between 20 to 370, and 370 to 740 MBq (r2=1.0 ± 0.0001, p<0.0001; r2=0.99 ± 0.0001, p<0.0001 for 20 to 370, and 370 to 740, respectively), while did not over 740 MBq (p=0.62). NECR analysis revealed that the peak rate was at 2.9 Mcps, there at the true counts were significantly suppressed. The optimal radioactive concentration was determined as 36 MBq/mL. Conclusion: Simulative analysis for high-dose of 13N using the phantom imitating small LV confirmed that the risk of count-loss was increased. The result can be useful information in assessing the feasibility of MBF quantification in clinical routine.
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Affiliation(s)
- Yoko Kaimoto
- Department of Radiological service, Tokyo Woman's Medical University, Tokyo, Japan
- Department of Health Sciences, Graduate School of Medicine, Tohoku University, Miyagi, Japan
| | - Kenji Fukushima
- Department of Radiology and Nuclear Medicine, Fukushima Medical University, Fukushima, Japan
| | - Kazuko Kanaya
- Department of Radiological service, Tokyo Woman's Medical University, Tokyo, Japan
| | - Masayasu Asanuma
- Department of Radiological service, Tokyo Woman's Medical University, Tokyo, Japan
| | - Kaoru Aoba
- Department of Radiological service, Tokyo Woman's Medical University, Tokyo, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Risako Nakao
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Koichiro Kaneko
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Michinobu Nagao
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Koichi Chida
- Department of Health Sciences, Graduate School of Medicine, Tohoku University, Miyagi, Japan
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Nagao M, Kawakubo M, Yamamoto A, Nakao R, Matsuo Y, Fukushima K, Sakai A, Momose M, Sakai S. Myocardial Strain Derived from 13N-ammonia Positron Emission Tomography: Detection of Ischemia-Related Wall Motion Abnormality. Ann Nucl Cardiol 2023; 9:26-32. [PMID: 38058577 PMCID: PMC10696145 DOI: 10.17996/anc.22-00161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 10/05/2022] [Accepted: 10/17/2022] [Indexed: 12/08/2023]
Abstract
Background: Due to the limitation of spatial resolution, cardiac nuclear medicine images have not been applied to feature-tracking method to automatic extraction of myocardial contours. We have successfully applied the feature-tracking method to high-resolution cine 13N-ammonia positron emission tomography (PET) images to calculate the regional myocardial strains. Here, we investigate the potential of 13N-ammonia PET-derived strain to detect ischemia-related wall motion abnormality. Methods: Data of adenosine-stress/rest 13N-ammonia PET for 95 coronary artery disease patients was retrospectively analyzed. Using an original algorithm dedicated to 13N-ammonia PET, the longitudinal strain (LS) corresponding to the three main coronary artery territories [right coronary artery (RCA), left anterior descending artery (LAD), and left circumflex coronary artery (LCX)] was calculated from semi-automatic endocardial contours extraction on cine 13N-ammonia PET images of the left ventricular long-axis. The presence of ischemia in three main territories was determined from rest and stress-perfusion images. Results: In all three coronary territories, LS at stress was significantly smaller at rest in the ischemic region RCA: -19.2±8.0% vs. -22.7±6.1%, LAD: -19.0±6.9% vs. -24.4±6.4%, LCX: -20.5%±7.6% vs. -22.6±6.9%). In contrast, in the non-ischemic region, there was no significant difference between the LS at stress and at rest. Receiver-operating-characteristic analysis revealed that using the optimal cutoff of the LS ratio of stress to rest, ischemia could be diagnosed with area under the curve of 0.82 in the RCA, 0.86 in the LAD, and 0.69 in the LCX. Conclusions: Myocardial strain derived from endocardial feature-tracking of 13N-ammonia PET cine imaging is reduced in the ischemia induced by adenosine-stress. The LS ratio of stress to rest may detect wall motion abnormality related to ischemia.
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Affiliation(s)
- Michinobu Nagao
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Masateru Kawakubo
- Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Risako Nakao
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Yuka Matsuo
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Kenji Fukushima
- Department of Nuclear Medicine, Fukushima Medical University, Fukushima, Japan
| | - Akiko Sakai
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Mitsuru Momose
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Shuji Sakai
- Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
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Sasaki T, Shitara H, Tajika T, Ichinose T, Hamano N, Kamiyama M, Yamamoto A, Kobayashi T, Takagishi K, Chikuda H. Relationship between Nontraumatic Shoulder Disorders and Neuropathic Pain: Retrospective Observational Analyses of Clinical Features and Background Factors. Anesthesiol Res Pract 2023; 2023:6046746. [PMID: 37808338 PMCID: PMC10558267 DOI: 10.1155/2023/6046746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 08/31/2023] [Accepted: 09/13/2023] [Indexed: 10/10/2023] Open
Abstract
Background Accurate identification of neuropathic pain is necessary for appropriate treatment; however, the relationship between nontraumatic shoulder disorders and neuropathic pain remains unknown. Therefore, this retrospective observational study aimed to investigate the relationship, features, background factors, and prevalence of neuropathic pain among patients with nontraumatic shoulder disorders. Methods We evaluated 198 patients who visited our outpatient clinic, which specializes in shoulder disorders, from April 2015 to March 2016. The patients' age, sex, affected side, diagnosis, and pain duration were recorded, and the results of physical examination, including passive range of motion, impingement sign, and muscular strength assessments, were analyzed. The presence of neuropathic pain was assessed using the painDETECT questionnaire. Participants were divided into two groups according to the presence of neuropathic pain. Pain intensity was assessed using a visual analog scale, and the patient's mental status was assessed using the short-form McGill Pain Questionnaire and Hospital Anxiety and Depression Scale. The scores were compared between the groups. Results Neuropathic pain was observed in 7.6% of patients. The visual analog scale score for pain, short-form McGill Pain Questionnaire score, and Hospital Anxiety and Depression Scale score were significantly associated with the presence of neuropathic pain in the univariate analysis. Patient background factors and physical function were not associated with the presence of neuropathic pain. The prevalence of neuropathic pain in patients with frozen shoulder was 33.3%, which was significantly higher than that in patients with other shoulder disorders. Conclusion The occurrence of neuropathic pain may aggravate pain in patients with nontraumatic shoulder disorders. Neuropathic pain was not a rare condition in patients with nontraumatic shoulder disorders, particularly in those with frozen shoulder. The coexistence of neuropathic pain cannot be determined from background factors or physical function. Accurate diagnosis of neuropathic pain is essential in patients with nontraumatic shoulder disorders.
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Affiliation(s)
- Tsuyoshi Sasaki
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Hitoshi Shitara
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Tsuyoshi Tajika
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Tsuyoshi Ichinose
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Noritaka Hamano
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Masataka Kamiyama
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Atsushi Yamamoto
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Tsutomu Kobayashi
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Kenji Takagishi
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Hirotaka Chikuda
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
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Ando K, Nagao M, Yamamoto A, Arashi H. A case of spontaneous coronary artery dissection evaluated by dynamic coronary CT angiography. Eur Heart J Cardiovasc Imaging 2023; 24:e281. [PMID: 37345984 DOI: 10.1093/ehjci/jead143] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 06/13/2023] [Accepted: 06/19/2023] [Indexed: 06/23/2023] Open
Affiliation(s)
- Kiyoe Ando
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Michinobu Nagao
- Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku 162-8666 Tokyo, Japan
| | - Atsushi Yamamoto
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Hiroyuki Arashi
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
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Tanaka K, Ohkubo H, Yamamoto A, Takahashi K, Kasai Y, Ozaki A, Iwaki M, Kobayashi T, Yoshihara T, Misawa N, Fuyuki A, Kato S, Higurashi T, Hosono K, Yoneda M, Kurihashi T, Taguri M, Nakajima A, Gwee KA, Kessoku T. Natural History of Chronic Intestinal Pseudo-obstruction and Need for Palliative Care. J Neurogastroenterol Motil 2023; 29:378-387. [PMID: 37417265 PMCID: PMC10334206 DOI: 10.5056/jnm22152] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 01/25/2023] [Accepted: 02/12/2023] [Indexed: 07/08/2023] Open
Abstract
Background/Aims Natural history of chronic intestinal pseudo-obstruction (CIPO), a rare disease characterized by episodes of non-mechanical obstruction, is unclear in adults. This study evaluates the clinical course of CIPO and palliative care needs of patients. Methods From October 2010 to September 2021, 74 patients who underwent cine MRI and had a definitive diagnosis of CIPO were prospectively included. We investigated disease etiology and outcomes, age at onset, nutritional status at consultation (body mass index and serum albumin), hydrogen breath test results, and total parenteral nutrition (TPN) during the disease course. Results Forty-seven patients (64%) were women, with a mean age of 44 years at onset and 49 years at diagnosis. Primary CIPO was observed in 48 patients (65%). Secondary CIPO was observed in 26 cases (35%), of whom 18 (69%) had scleroderma. The mean body mass index, serum albumin level, and hydrogen breath test positivity rate were 17 kg/m2, 3.8 mg/dL, and 60%, respectively. TPN and invasive decompression therapy were required by 23 (31%) and 18 (24%) patients, respectively. Intestinal sterilization was performed in 51 (69%) patients and was effective in 33 (65%); of these, 28 (85%) were taking metronidazole. Seven (9%) patients used opioids. There were 9 deaths (12%), including 5 (56%) from infection and 2 (22%) from suicide. Of the deaths, 6 (67%) and 4 (44%) underwent TPN management and decompression therapy, respectively. Fifty-one patients (69%) wanted palliative care. Conclusion CIPO is a rare, severe, and under-recognized disease. Standardization of treatment strategies, including palliative care and psychiatric interventions, is desired.
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Affiliation(s)
- Kosuke Tanaka
- Department of Palliative Medicine and Gastroenterology, International University Health and Welfare Narita Hospital, Narita, Japan
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hidenori Ohkubo
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Department of Gastroenterology, Toshiba Rinkan Hospital, Sagamihara, Japan
| | - Atsushi Yamamoto
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kota Takahashi
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yuki Kasai
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Anna Ozaki
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Michihiro Iwaki
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Takashi Kobayashi
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tsutomu Yoshihara
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Noboru Misawa
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Akiko Fuyuki
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shingo Kato
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Department of Clinical Cancer Genomics, Yokohama City University Hospital, Yokohama, Japan
| | - Takuma Higurashi
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kunihiro Hosono
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Masato Yoneda
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Takeo Kurihashi
- Department of Internal Medicine, Kanagawa Dental University Yokohama Clinic, Yokohama, Japan
| | - Masataka Taguri
- Department of Data Science, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kok-Ann Gwee
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- The Gastroenterology Group, Gleneagles Hospital, Singapore
| | - Takaomi Kessoku
- Department of Palliative Medicine and Gastroenterology, International University Health and Welfare Narita Hospital, Narita, Japan
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Department of Gastroenterology, International University Health and Welfare, School of Medicine, Narita, Japan
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Yano Y, Yamamoto A, Mimura T, Kushida S, Hirohata S, Yoon S, Hirano H, Kim SK, Hatazawa Y, Momose K, Hayashi H, Kado T, Nishi K, Tanaka H, Matsuura T, Yoshida R, Asaji N, Yasutomi E, Shiomi Y, Minami A, Komatsu S, Fukumoto T, Ueda Y, Kodama Y. Factors associated with the response to atezolizumab/bevacizumab combination therapy for hepatocellular carcinoma. JGH Open 2023; 7:476-481. [PMID: 37496817 PMCID: PMC10366485 DOI: 10.1002/jgh3.12932] [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: 03/05/2023] [Revised: 04/26/2023] [Accepted: 06/05/2023] [Indexed: 07/28/2023]
Abstract
Background and Aim The purpose of this study was to analyze factors associated with the overall survival (OS) of atezolizumab/bevacizumab combination therapy for advanced hepatocellular carcinoma (aHCC). We also assessed the OS of patients with ineffective therapy and those who discontinued treatment owing to adverse events (AEs). Methods This retrospective multicenter study involved 139 patients with aHCC who received atezolizumab/bevacizumab combination therapy between November 2020 and September 2022. Results The median duration of treatment was 136.5 days, and the median observation period was 316 days. The overall response rate was 40%, and the disease control rate was 78% according to mRECIST criteria. Grade ≥2 AEs occurred in 63 patients (43%) and led to treatment discontinuation in 16 patients. Multivariate analysis revealed that treatment response and occurrence of grade ≥2 AEs after therapy, as well as low level of albumin-bilirubin (ALBI) grade and low level of des-gamma carboxy prothrombin (DCP) before therapy, were extracted as factors that contributed to OS. Log-rank tests with the Kaplan-Meier method showed significant differences in OS among these factors. The OS of patients who discontinued owing to AEs was significantly shorter than that of other patients. Conclusion Not only factors before therapy but also treatment response and the appearance of AEs are involved in OS for atezolizumab/bevacizumab combination therapy. Although the development of AEs also contributed to OS, appropriate management of AEs is important to avoid discontinuing treatment with this combination.
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Affiliation(s)
- Yoshihiko Yano
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
| | - Atsushi Yamamoto
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
| | | | | | | | - Seitetsu Yoon
- Hyogo Prefectural Kakogawa Medical CenterKakogawaJapan
| | | | | | | | | | | | | | | | | | - Takanori Matsuura
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
| | - Ryutaro Yoshida
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
| | - Naoki Asaji
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
| | - Eiichiro Yasutomi
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
| | - Yuuki Shiomi
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
| | - Akihiro Minami
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
| | - Shohei Komatsu
- Division of Hepato‐Biliary‐Pancreatic SurgeryKobe University Graduate School of MedicineKobeJapan
| | - Takumi Fukumoto
- Division of Hepato‐Biliary‐Pancreatic SurgeryKobe University Graduate School of MedicineKobeJapan
| | - Yoshihide Ueda
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
| | - Yuzo Kodama
- Division of GastroenterologyKobe University Graduate School of MedicineKobeJapan
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30
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Kaneko K, Nagao M, Yamamoto A, Sakai A, Sakai S. FDG uptake patterns in isolated and systemic cardiac sarcoidosis. J Nucl Cardiol 2023; 30:1065-1074. [PMID: 36192524 DOI: 10.1007/s12350-022-03106-1] [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: 06/26/2022] [Accepted: 08/29/2022] [Indexed: 11/25/2022]
Abstract
AIMS We aimed to investigate the pre-treatment characteristics and treatment responses of isolated and systemic cardiac sarcoidosis (ICS and SCS) from FDG-PET/CT studies and to compare the prognoses of the two groups. METHODS FDG-PET/CT images taken before and after treatment of 31 ICS and 91 SCS patients were analyzed retrospectively. Treatment response and recurrence were determined from the course of FDG-PET/CT. Treatment response and the incidence of both recurrence and major adverse cardiac events (MACE) were assessed in 16 ICS and 35 SCS patients who had been treated for more than 2 years. RESULTS A focal uptake pattern was more often observed than a focal-on-diffuse uptake pattern in both the ICS (74.2%) and SCS (63.7%) groups. Right ventricular involvement was significantly more frequent in SCS than ICS (44.0% vs. 9.6%, p < .001). SUVmax, cardiac metabolic volume (CMV), and cardiac metabolic activity (CMA) were significantly higher in SCS than ICS (SUVmax, 9.1 ± 4.1 vs. 4.8 ± 2.1; CMV, 118.0 ± 111.3 ml vs. 68.3 ± 94.7 ml; CMA, 541.6 ± 578.7 MBq vs. 265.1 ± 396.0 MBq, p < .001). Treatment responses in the two groups were similar, and complete resolution of cardiac uptake after immunosuppressive treatment was obtained in 62.5% of ICS patients and 77.1% of SCS patients (not significantly different). Likewise, no significant difference was found in the incidence of recurrence (40.0% for ICS, 44.4% for SCS) or MACE (25.0% for ICS, 22.8% for SCS). CONCLUSION SCS patients had more active and extensive CS lesions than ICS patients before treatment, but the two groups showed similar treatment responses and prognoses.
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Affiliation(s)
- Koichiro Kaneko
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
| | - Michinobu Nagao
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
- Department of Cardiology, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Akiko Sakai
- Department of Cardiology, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Shuji Sakai
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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Kaneko K, Nagao M, Yamamoto A, Sakai A, Sakai S. Correction: Linking cardiac and extracardiac sarcoidosis and their clinical outcome: 18F-FDG PET/CT analysis in patients with systemic cardiac sarcoidosis. Ann Nucl Med 2023:10.1007/s12149-023-01850-z. [PMID: 37249788 DOI: 10.1007/s12149-023-01850-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Affiliation(s)
- Koichiro Kaneko
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan.
| | - Michinobu Nagao
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
| | - Akiko Sakai
- Department of Cardiology, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
| | - Shuji Sakai
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
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Iwamoto K, Yamamoto M, Yamamoto A, Sai T, Mukai T, Miura N, Kozono H, Onishi S, Ohno S, Iwamoto N, Matsumura Y, Nagao M, Urata Y. Meningitis caused by Chromobacterium haemolyticum suspected to be derived from a canal in Japan: a case report. J Med Case Rep 2023; 17:171. [PMID: 37120580 PMCID: PMC10149000 DOI: 10.1186/s13256-023-03913-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 03/28/2023] [Indexed: 05/01/2023] Open
Abstract
BACKGROUND The genus Chromobacterium, of which 12 species have been recognized, comprises bacteria that reside in tropical and subtropical environments. Of these species, Chromobacterium violaceum and Chromobacterium haemolyticum are known to cause infections in humans. There have been few reports of infections caused by Chromobacterium haemolyticum. CASE PRESENTATION Chromobacterium haemolyticum was detected in spinal fluid and blood samples isolated from a 73-year-old Japanese male patient who fell into a canal in Kyoto City, Japan and developed bacteremia and meningitis. Although meropenem and vancomycin were administered, this patient died 9 days after admission. Although the infection was misidentified as being caused by Chromobacterium violaceum by conventional identification methods, average nucleotide identity analysis revealed that the causative pathogen was Chromobacterium haemolyticum. The same bacteria were also detected in the canal in which the accident occurred. Phylogenetic analysis of the strain isolated from the patient and the strain isolated from the canal suggested that the two strains were very closely related. CONCLUSIONS Chromobacterium haemolyticum can be misidentified as Chromobacterium violaceum by conventional identification methods and tends to be more resistant to β-lactams than Chromobacterium violaceum. Pigment production and β-hemolysis on blood sheep agar can provide clues for the early identification of Chromobacterium haemolyticum.
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Affiliation(s)
- Kumi Iwamoto
- Department of Medical Laboratory, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Masaki Yamamoto
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-Ku, Kyoto, 6068507, Japan.
| | - Atsushi Yamamoto
- Department of Cerebral Neurology and Stroke, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Toshi Sai
- Department of Cerebral Neurology and Stroke, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Toshiko Mukai
- Department of Medical Laboratory, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Noriko Miura
- Department of Medical Laboratory, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Haruhisa Kozono
- Department of Medical Laboratory, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Shigeki Onishi
- Department of Medical Laboratory, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Seiko Ohno
- Department of Infection Control, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Nobuki Iwamoto
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-Ku, Kyoto, 6068507, Japan
| | - Yasufumi Matsumura
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-Ku, Kyoto, 6068507, Japan
| | - Miki Nagao
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-Ku, Kyoto, 6068507, Japan
| | - Yoji Urata
- Department of Medical Laboratory, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
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Kaneko K, Nagao M, Yamamoto A, Sakai A, Sakai S. Linking cardiac and extracardiac sarcoidosis and their clinical outcome: 18F-FDG PET/CT analysis in patients with systemic cardiac sarcoidosis. Ann Nucl Med 2023:10.1007/s12149-023-01844-x. [PMID: 37119390 DOI: 10.1007/s12149-023-01844-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/24/2023] [Indexed: 05/01/2023]
Abstract
OBJECTIVE To clarify the link between cardiac sarcoidosis (CS) and extra-CS (ECS) in systemic CS (SCS) patients in terms of extent and clinical outcome by serial FDG-PET/CT. METHODS Thirty-five SCS patients treated for > 2 years were enrolled in this study. In the overall analysis, patient-based comparisons of the complete resolution (CR) and recurrence rate between CS and ECS lesions were performed. Then, subgroup analyses were performed according to the extent (mono- vs. multi-organ ECS group) and clinical outcome (stable vs. unstable ECS group) of ECS. Pre-treatment cardiac FDG uptake was compared between the mono- and multi-organ ECS groups. The rates of CR, recurrence, and major adverse cardiac events (MACE) were compared between the two groups. RESULTS The CR rate was significantly higher in CS than ECS lesions [77.1% (27/35) vs. 48.5% (17/35), p = 0.01], whereas recurrence rates were similar between CS and ECS [40.7% (11/27) vs. 58.8% (10/17)]. Both the mono- and multi-organ ECS groups showed similar SUVmax, cardiac metabolic volume, and cardiac metabolic activity in the pre-treatment condition. The CR rates were similar between the mono- and multi-organ ECS groups [71.4% (15/21) vs. 85.7% (12/14)], but the recurrence rate was significantly lower in the multi-organ ECS group [60.0% (9/15) vs. 16.7% (2/12), p = 0.02]. The CR [71.4% (5/7) vs. 78.6% (22/28)] and recurrence rates [60.0% (3/5) vs. 36.3% (8/22)] were not significantly different between the stable and unstable ECS groups. The occurrence of MACE was also not significantly different between the mono- and multi-organ ECS groups [19.0% (4/21) vs. 28.6% (4/14)] or between the stable and unstable ECS groups [42.9% (3/7) vs. 17.8% (5/28)]. CONCLUSIONS CS lesions respond to treatment better than ECS lesions, and the extent and clinical outcome of ECS lesion are not linked with those of CS lesions.
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Affiliation(s)
- Koichiro Kaneko
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan.
| | - Michinobu Nagao
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
| | - Akiko Sakai
- Department of Cardiology, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
| | - Shuji Sakai
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan
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Hoshino T, Okamoto Y, Yamamoto A, Masunaga H. Dynamic behaviours of epoxy resin thin films during the curing process. Soft Matter 2023; 19:3267-3272. [PMID: 37082885 DOI: 10.1039/d2sm01500e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Epoxy resin thin films are widely used in applications such as coating materials, insulator films, and adhesives; accordingly, investigations of their physical properties have garnered increasing importance. Although the physical properties of thermoset epoxy thin films are strongly affected by the curing conditions, such as the heating temperature and curing time, the dynamic properties during the curing process have not been studied thoroughly. In this study, we investigated the thermal fluctuations on the surface of epoxy resin thin films using grazing-incidence X-ray photon correlation spectroscopy, to elucidate the dynamic behaviours during the curing process. We thus succeeded in observing the freezing of capillary waves during the thermal curing process. These results are expected to facilitate a deeper understanding of the curing mechanisms of various thin films.
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Affiliation(s)
- Taiki Hoshino
- International Center for Synchrotron Radiation Innovation Smart (SRIS), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
- RIKEN SPring-8 Center, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Yasushi Okamoto
- DENSO CORPORATION, 1-1, Showa-cho, Kariya, Aichi 448-8661, Japan
| | - Atsushi Yamamoto
- DENSO CORPORATION, 1-1, Showa-cho, Kariya, Aichi 448-8661, Japan
| | - Hiroyasu Masunaga
- Japan Synchrotron Radiation Research Institute/SPring-8, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
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Miyazaki Y, Yamamoto A. A Study of Chemical Substances Migrated from Plastic Tableware to Evaluate the Food Safety for Pets. Mass Spectrom (Tokyo) 2023; 12:A0119. [PMID: 37250591 PMCID: PMC10209654 DOI: 10.5702/massspectrometry.a0119] [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: 01/05/2023] [Accepted: 03/13/2023] [Indexed: 05/31/2023] Open
Abstract
To evaluate the safety of food for pets, the migration of chemical substances from pet tableware was investigated by mass spectrometry. The presence of polymer additives Irgafos 168 and Erucamide were suspected based on mass spectra and were confirmed to be present in polypropylene tableware. The amount of substances migrated using simulated saliva was examined by liquid chromatography-mass spectrometry after solid phase extraction and purification. Photoionization was found to be suitable for the simultaneous determination of these substances. The detection limits of the established method were 0.019 μg/mL for Irgafos 168 and 0.022 μg/mL for Erucamide. Five different types of pet tableware purchased in local markets were examined and no analytes were detected in the simulated saliva using shaking extraction. In this study, the risk to pets from the substances migrated from pet tableware was considered to be sufficiently low.
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Affiliation(s)
- Yamato Miyazaki
- Faculty of Environment, Tottori University of Environmental Studies, 1–1–1 Wakabadaikita, Tottori, Tottori 689–1111, Japan
| | - Atsushi Yamamoto
- Faculty of Environment, Tottori University of Environmental Studies, 1–1–1 Wakabadaikita, Tottori, Tottori 689–1111, Japan
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Takegawa K, Ito T, Yamamoto A, Yamazaki N, Shindo M, Shinohara Y. KH-17, a simplified derivative of bongkrekic acid, weakly inhibits the mitochondrial ADP/ATP carrier from both sides of the inner mitochondrial membrane. Chem Biol Drug Des 2023; 101:865-872. [PMID: 36527173 DOI: 10.1111/cbdd.14194] [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: 09/21/2022] [Revised: 11/21/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Two natural products, bongkrekic acid and carboxyatractyloside, are known to specifically inhibit the mitochondrial ADP/ATP carrier from its matrix side and cytosolic side, respectively, in concentration ranges of 10-6 M. In the present study, we investigated the manner of action of a synthetic bongkrekic acid derivative, KH-17, lacking three methyl groups, one methoxy group, and five internal double bonds, on the mitochondrial ADP/ATP carrier. At slightly acidic pH, KH-17 inhibited mitochondrial [3 H]ADP uptake, but its inhibitory action was about 10 times weaker than that of its parental compound, bongkrekic acid. The main site of action of KH-17 was confirmed as the matrix side of the ADP/ATP carrier by experiments using submitochondrial particles, which have an inside-out orientation of the inner mitochondrial membrane. However, when we added KH-17 to mitochondria at neutral pH, it had a weak inhibitory effect on [3 H]ADP uptake, and its inhibitory strength was similar to that of bongkrekic acid. These results indicated that KH-17 weakly inhibits the ADP/ATP carrier not only from the matrix side but also from the cytosolic side. To ascertain whether this interpretation was correct, we examined the effects of KH-17 and carboxyatractyloside on mitochondrial [3 H]ADP uptake at two [3 H]ADP concentrations. We found that both KH-17 and carboxyatractyloside showed a stronger inhibitory effect at the lower [3 H]ADP concentration. Therefore, we concluded that the bongkrekic acid derivative, KH-17, weakly inhibits the mitochondrial ADP/ATP carrier from both sides of the inner mitochondrial membrane. These results suggested that the elimination of three methyl groups, one methoxy group, and five internal double bonds present in bongkrekic acid altered its manner of action towards the mitochondrial ADP/ATP carrier. Our data will help to improve our understanding of the interaction between bongkrekic acid and the mitochondrial ADP/ATP carrier.
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Affiliation(s)
- Kazuto Takegawa
- Institute for Genome Research, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, Japan
| | - Takeshi Ito
- Institute for Genome Research, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, Japan
| | - Atsushi Yamamoto
- Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
| | - Naoshi Yamazaki
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga, Japan
| | - Yasuo Shinohara
- Institute for Genome Research, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, Japan
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Kakehashi R, Tokai N, Nakagawa M, Kawasaki K, Horiuchi S, Yamamoto A. Amidoamine Oxide Surfactants as Low-Molecular-Weight Hydrogelators: Effect of Methylene Chain Length on Aggregate Structure and Rheological Behavior. Gels 2023; 9:gels9030261. [PMID: 36975709 PMCID: PMC10048289 DOI: 10.3390/gels9030261] [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: 02/28/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/29/2023] Open
Abstract
Rheology control is an important issue in many industrial products such as cosmetics and paints. Recently, low-molecular-weight compounds have attracted considerable attention as thickeners/gelators for various solvents; however, there is still a significant need for molecular design guidelines for industrial applications. Amidoamine oxides (AAOs), which are long-chain alkylamine oxides with three amide groups, are surfactants that act as hydrogelators. Here, we show the relationship between the length of methylene chains at four different locations of AAOs, the aggregate structure, the gelation temperature Tgel, and the viscoelasticity of the formed hydrogels. As seen from the results of electron microscopic observations, the aggregate structure (ribbon-like or rod-like) can be controlled by changing the length of methylene chain in the hydrophobic part, the length of methylene chain between the amide and amine oxide groups, and the lengths of methylene chains between amide groups. Furthermore, hydrogels consisting of rod-like aggregates showed significantly higher viscoelasticity than those consisting of ribbon-like aggregates. In other words, it was shown that the gel viscoelasticity could be controlled by changing the methylene chain lengths at four different locations of the AAO.
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Affiliation(s)
- Rie Kakehashi
- Surfactant Laboratory, Osaka Research Institute of Industrial Science and Technology, Osaka 536-8553, Japan
| | - Naoji Tokai
- Surfactant Laboratory, Osaka Research Institute of Industrial Science and Technology, Osaka 536-8553, Japan
| | - Makoto Nakagawa
- Surfactant Laboratory, Osaka Research Institute of Industrial Science and Technology, Osaka 536-8553, Japan
| | - Kazunori Kawasaki
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda 563-8577, Japan
| | - Shin Horiuchi
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8565, Japan
| | - Atsushi Yamamoto
- Faculty of Environmental Studies, Tottori University of Environmental Studies, Tottori 689-1111, Japan
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Nakagawa D, Komatsu S, Yano Y, Kido M, Kuramitsu K, Yamamoto A, Omiya S, Shimura Y, Goto T, Yanagimoto H, Toyama H, Ueda Y, Kodama Y, Fukumoto T. Outcomes of the Sequential Treatment of Unresectable Hepatocellular Carcinoma Using Lenvatinib. Anticancer Res 2023; 43:911-918. [PMID: 36697097 DOI: 10.21873/anticanres.16234] [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: 11/17/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND/AIM The chemotherapeutic landscape for hepatocellular carcinomas (HCCs) has changed dramatically with the availability of several treatment options. This study aimed to assess the long-term outcomes of lenvatinib treatment and analyze its feasibility in the sequential treatment of HCCs. PATIENTS AND METHODS Eighty-five consecutive patients who received lenvatinib for unresectable HCCs were investigated retrospectively. Survival was assessed based on when the patients were first radiologically diagnosed with progressive disease. Among those with radiologically diagnosed stable or progressive disease at 3 months after lenvatinib administration, the cutoff α-fetoprotein (AFP) ratio (ratio of the AFP level after lenvatinib treatment to the pretreatment AFP level) that was predictive of survival was determined using receiver operating characteristic analysis. RESULTS The median survival time (MST) was significantly worse among patients diagnosed with progressive disease at 1 month after treatment than among those diagnosed at 2-3 or 3-4 months after treatment [MSTs at 1, 2-3, and 3-4 months: 2.2, 10.2, and 17.3 months, respectively (p<0.001)]. An AFP ratio of 1.36 (computed using the AFP level at 3 months after lenvatinib treatment) was significantly predictive of survival in patients with stable or progressive disease (26.3 vs. 11.3 months, p=0.0024). CONCLUSION The prognosis of patients on lenvatinib who develop early progressive disease is dismal. Thus, their treatment should be ceased or switched. The 3-month AFP ratio of 1.36 may be a potentially useful cutoff for considering a switch to other treatments in patients radiologically diagnosed with stable or progressive disease.
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Affiliation(s)
- Daisuke Nakagawa
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shohei Komatsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan;
| | - Yoshihiko Yano
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masahiro Kido
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kaori Kuramitsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Atsushi Yamamoto
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Satoshi Omiya
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuhi Shimura
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tadahiro Goto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroaki Yanagimoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hirochika Toyama
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshihide Ueda
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takumi Fukumoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Yamamoto A, Shoda K, Kawaguchi Y, Akaike H, Furuya S, Shiraishi K, Hirayama K, Saito R, Ashizawa N, Takiguchi K, Hosomura N, Amemiya H, Kawaida H, Kono H, Ichikawa D. The Prognostic Implications of Perioperative Serum Cholesterol Levels in Patients With Gastric Cancer. Anticancer Res 2023; 43:903-909. [PMID: 36697061 DOI: 10.21873/anticanres.16233] [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: 11/17/2022] [Revised: 12/20/2022] [Accepted: 01/10/2023] [Indexed: 01/26/2023]
Abstract
BACKGROUND/AIM Although cholesterol is an important indicator of nutritional status, it is also involved in cancer progression. In this study, we investigated the clinical significance of the dynamics of perioperative total cholesterol (T-Cho) levels in patients with gastric cancer (GC). PATIENTS AND METHODS A total of 212 patients with pathological stage II/III disease who underwent gastrectomy between 2004 and 2020 were enrolled in this retrospective study. The preoperative and postoperative serum T-Cho levels were measured in these patients. RESULTS Increased serum T-Cho levels were significantly correlated with low preoperative serum albumin levels (p<0.001). Patients with increased serum T-Cho levels after surgery had significantly lower overall and recurrence-free survival rates (p=0.030 and p=0.013, respectively; log-rank test). Cox proportional hazards model revealed that increased serum T-Cho levels (p=0.040), advanced pathological stage (p<0.001), and the provision of adjuvant chemotherapy (p=0.006) were independent prognostic factors for recurrence-free survival in patients with GC. CONCLUSION Increased serum T-Cho levels after gastrectomy may be an independent prognostic factor in patients with GC.
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Affiliation(s)
- Atsushi Yamamoto
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Katsutoshi Shoda
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Yoshihiko Kawaguchi
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Hidenori Akaike
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Shinji Furuya
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Kensuke Shiraishi
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Kazuyoshi Hirayama
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Ryo Saito
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Naoki Ashizawa
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Koichi Takiguchi
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Naohiro Hosomura
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Hidetake Amemiya
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Hiromichi Kawaida
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Hiroshi Kono
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Daisuke Ichikawa
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
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Terashima H, Mutoh Y, Aizawa SI, Taga A, Mikami I, Itabashi Y, Tsutsumiuchi K, Yamamoto A, Kodama S. Direct chiral separation of abscisic acid by high-performance liquid chromatography with a phenyl column and a mobile phase containing γ-cyclodextrin. J Sep Sci 2023; 46:e2200827. [PMID: 36670088 DOI: 10.1002/jssc.202200827] [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: 10/12/2022] [Revised: 01/14/2023] [Accepted: 01/15/2023] [Indexed: 01/22/2023]
Abstract
Abscisic acid (2-cis,4-trans-abscisic acid) is a plant hormone that has an asymmetric carbon atom. We tried to separate the enantiomers of native abscisic acid by HPLC using a phenyl column and a chiral mobile phase containing γ-cyclodextrin. The optimum mobile phase conditions were found to be 0.8% (w/v) γ-cyclodextrin, 4% (v/v) acetonitrile, and 20 mM phosphate buffer (pH 6.0). It was found that (R)-abscisic acid was earlier detected than (S)-abscisic acid. Since γ-cyclodextrin is hardly retained on a phenyl column, it was suggested that (R)-abscisic acid formed a more stable complex with γ-cyclodextrin than the (S)-abscisic acid. Abscisic acid in an acacia honey sample was successfully enantioseparated with the proposed method and only (S)-abscisic acid was detected. A biologically inactive 2-trans,4-trans-abscisic acid, which was prepared by irradiation of abscisic acid with a light-emitting diode lamp at 365 nm, was partially enantioseparated by the proposed method. Since the irradiation of (S)-abscisic acid-induced cis-to-trans isomerization to produce one 2-trans,4-trans-abscisic acid enantiomer, it is reasonable that racemization did not proceed during the cis-to-trans isomerization. (S)-Abscisic acid and probably (S)-2-trans,4-trans-abscisic acid were detected in a honey sample, where the peak area of (S)-abscisic acid was 7 times larger than that of (S)-2-trans,4-trans-abscisic acid.
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Affiliation(s)
| | - Yui Mutoh
- School of Science, Tokai University, Hiratsuka, Japan
| | | | - Atsushi Taga
- Faculty of Pharmacy, Kindai University, Higashiosaka, Japan
| | - Ikko Mikami
- School of Science, Tokai University, Hiratsuka, Japan
| | - Yutaka Itabashi
- Faculty of Fisheries Sciences, Hokkaido University, Sapporo, Japan
| | - Kaname Tsutsumiuchi
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, Kasugai-shi, Japan
| | - Atsushi Yamamoto
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, Kasugai-shi, Japan
| | - Shuji Kodama
- School of Science, Tokai University, Hiratsuka, Japan
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Yamada K, Iwata K, Yoshimura Y, Ota H, Oki Y, Mitani Y, Oki Y, Yamada Y, Yamamoto A, Ono K, Honda A, Kitai T, Tachikawa R, Kohara N, Tomii K, Ishikawa A. Predicting the Readmission and Mortality in Older Patients Hospitalized with Pneumonia with Preadmission Frailty. J Frailty Aging 2023; 12:208-213. [PMID: 37493381 DOI: 10.14283/jfa.2022.36] [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] [Indexed: 07/27/2023]
Abstract
BACKGROUND In older people, frailty has been recognized as an important prognostic factor. However, only a few studies have focused on multidimensional frailty as a predictor of mortality and readmission among inpatients with pneumonia. OBJECTIVE The present study aimed to assess the association between preadmission frailty and clinical outcomes after the hospitalization of older patients with pneumonia. DESIGN Single-center, retrospective case-control study. SETTING Acute phase hospital at Kobe, Japan. PARTICIPANTS The present study included 654 consecutive older inpatients with pneumonia. MEASUREMENTS Frailty status before admission was assessed using total Kihon Checklist (KCL) score, which has been used as a self-administered questionnaire to assess comprehensive frailty, including physical, social, and cognitive status. The primary outcome was a composited 6-month mortality and readmission after discharge. RESULTS In total, 330 patients were analyzed (median age: 79 years, male: 70.4%, median total KCL score: 10 points), of which 68 were readmitted and 10 died within 6 months. After multivariate analysis, total KCL score was associated with a composited 6-month mortality and readmission (adjusted hazard ratio, 1.07; 95% confidence interval, 1.02-1.12; p = 0.006). The cutoff value for total KCL score determined by receiver operating characteristic curve analysis was 15 points (area under the curve = 0.610). The group with a total KCL score ≥ 15 points had significantly higher readmission or mortality rates than the groups with a total KCL score < 15 points (p < 0.001). CONCLUSIONS Preadmission frailty status in older patients with pneumonia was an independent risk factor for readmission and survival after hospitalization.
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Affiliation(s)
- K Yamada
- Kentaro Iwata, PT, MSc, Department of Rehabilitation, Kobe City Medical Center General Hospital, 2-1-1, Minatojimaminami, Chuo, Kobe 650-0047 Hyogo, Japan. Tel.: +81 78 302,
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Shitara H, Tajika T, Kuboi T, Ichinose T, Sasaki T, Hamano N, Kamiyama M, Yamamoto A, Kobayashi T, Takagishi K, Chikuda H. Shoulder stretching versus shoulder muscle strength training for the prevention of baseball-related arm injuries: a randomized, active-controlled, open-label, non-inferiority study. Sci Rep 2022; 12:22118. [PMID: 36543874 PMCID: PMC9772170 DOI: 10.1038/s41598-022-26682-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Glenohumeral internal rotation deficit (GIRD) and weakness in prone external rotation are risk factors for shoulder and elbow injuries in high school baseball pitchers. While a shoulder-stretching prevention program to improve GIRD decreases the injury rate, the effects of external rotation strength remain unclear. This non-inferiority (NI) study investigates the hypothesis that external rotation strength training is not inferior to sleeper stretching for shoulder and elbow injury prevention in high school baseball pitchers. Participants were randomly allocated to the stretching (n = 62; active control group) and muscle-training (n = 51) groups. Specific exercises were performed each night. Elbow and shoulder injuries were monitored for 150 days. Kaplan-Meier survival curves were generated, and the hazard ratios (HRs) for injury occurrence were calculated using multivariate Cox regression. The log-rank test was used to compare the injury-free time. A one-sided NI test using a fixed NI margin was performed (significance level, P = 0.025). The injury rates were 22.6% (n = 14) in the stretching group and 9.8% (n = 5) in the muscle-training group. The muscle-training group had a lower injury rate (P < 0.001) and a lower risk of injury than the stretching group (HR = 0.489). Therefore, external rotation muscle strength training is not inferior to stretching for preventing baseball-related arm injuries.
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Affiliation(s)
- Hitoshi Shitara
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Tsuyoshi Tajika
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Takuro Kuboi
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Tsuyoshi Ichinose
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Tsuyoshi Sasaki
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Noritaka Hamano
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Masataka Kamiyama
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Atsushi Yamamoto
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Tsutomu Kobayashi
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Kenji Takagishi
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
| | - Hirotaka Chikuda
- grid.256642.10000 0000 9269 4097Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511 Japan
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Kanayama Y, Ikumi K, Torii K, Enomoto Y, Yamamoto A, Morita A. 538 Bath-PUVA therapy changes inflammatory profiles for systemic effects beyond the skin. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ichikawa T, Yasuda R, Yamamoto A, Nishikawa H, Fujimoto M, Miura Y, Toma N, Suzuki H. Folding Deformation of Open-Cell Stents in Carotid Artery Stenting: Report of Three Cases and Review of Literature. J Neuroendovasc Ther 2022; 16:570-575. [PMID: 37501740 PMCID: PMC10370877 DOI: 10.5797/jnet.cr.2022-0028] [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] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/02/2022] [Indexed: 07/29/2023]
Abstract
Objective We describe 3 cases with folding deformation of a PRECISE (Cordis, Miami, FL, USA) stent in carotid artery stenting (CAS). Case Presentations The 3 cases with cervical carotid stenosis consisted of 3 males around 80 years old and included 2 symptomatic lesions. During CAS, distal embolic protection was established using a Mo.Ma (Medtronic, Minneapolis, MN, USA) along with a filter device in 2 cases and an Optimo (Tokai Medical Products, Aichi, Japan) along with a filter device in 1 case. For the filter device, either FilterWire EZ (Boston Scientific, Natick, MA, USA) or Spider FX (Covidien, Irvine, CA, USA) was employed. In all cases, a PRECISE stent was deployed after pre-dilation performed using a percutaneous transluminal angioplasty (PTA) balloon with the diameter of 2.5 to 3 mm. Post-dilation was performed after the stent deployment using a PTA balloon whose diameter was about 80% of that of the normal distal internal carotid artery. In all cases, cone-beam CT taken after the deployment of a stent showed folding deformation of the stent. In 2 cases, heavily calcified plaque hampered self-expansion of the stent, which resulted in the stent deformation. On the other hand, in the remaining 1 case, a distal shaft of the Mo.Ma caused the stent deformation, which was likely accelerated by head rotation and cervical compression that was performed to resolve difficulties for a filter retrieval device to pass through the stent, and post-dilation after the stenting. Conclusion Heavily calcified plaque and a distal shaft of a Mo.Ma would result in stent deformation.
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Affiliation(s)
- Tomonori Ichikawa
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Ryuta Yasuda
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Atsushi Yamamoto
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Hirofumi Nishikawa
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Masashi Fujimoto
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Yoichi Miura
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Naoki Toma
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Hidenori Suzuki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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Mizukami A, Kawaida H, Hayashi T, Nakayama T, Matsuoka K, Saito R, Yamamoto A, Takahashi K, Takiguchi K, Hirayama K, Ashizawa N, Shoda K, Shiraishi K, Furuya S, Hosomura N, Akaike H, Kawaguchi Y, Amemiya H, Kono H, Ichikawa D. [Long-Term Prognosis of Patients with Biliary Tract Cancer Undergoing Pancreaticoduodenectomy]. Gan To Kagaku Ryoho 2022; 49:1136-1138. [PMID: 36281611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
We divided the patients with biliary tract cancer who underwent pancreaticoduodenectomy(PD)at our hospital into the 5-year recurrence-free and recurrence groups and investigated the prognostic factors. Additionally, we investigated the efficacy of adjuvant chemotherapy in patients with and without lymph node (LN) metastasis. There was no significant difference between the two groups for patient characteristics and perioperative factors. However, patients with LN metastasis tended to have a higher recurrence rate. For patients without LN metastasis, the median overall survival(OS)was not significantly different between the patients who received and did not receive adjuvant chemotherapy. For patients with LN metastasis, although it was not significantly different(p=0.234), the OS of patients who received adjuvant therapy was more than 3 times than that of patients who did not(58.6 months and 18.4 months, respectively). For patients with biliary tract cancer who underwent PD, positive LN metastasis may be a poor prognostic factor, and adjuvant therapy may possibly improve prognosis.
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Affiliation(s)
- Akihito Mizukami
- First Dept. of Surgery, Faculty of Medicine, University of Yamanashi
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Yamamoto A, Nagao M, Ichihara Y, Niinami H. Utility of 13N-Ammonia Positron Emission Tomography to Visualize the Therapeutic Effect: A Case With Anteroseptal Myocardial Infarction and Implanted Autologous Skeletal Stem Cell-Sheet. Circ Cardiovasc Imaging 2022; 15:e014315. [PMID: 35866434 DOI: 10.1161/circimaging.122.014315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Atsushi Yamamoto
- Department of Cardiology (A.Y.), Tokyo Women's Medical University, Japan.,Department of Diagnostic Imaging and Nuclear Medicine (A.Y., M.N.), Tokyo Women's Medical University, Japan
| | - Michinobu Nagao
- Department of Diagnostic Imaging and Nuclear Medicine (A.Y., M.N.), Tokyo Women's Medical University, Japan
| | - Yuki Ichihara
- Department of Cardiovascular Surgery (Y.I., H.N.), Tokyo Women's Medical University, Japan
| | - Hiroshi Niinami
- Department of Cardiovascular Surgery (Y.I., H.N.), Tokyo Women's Medical University, Japan
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Kawakubo M, Nagao M, Yamamoto A, Nakao R, Matsuo Y, Fukushim K, Watanabe E, Sakai A, Sasaki M, Sakai S. 13N-ammonia positron emission tomography-derived endocardial strain for the assessment of ischemia using feature-tracking in high-resolution cine imaging. J Nucl Cardiol 2022; 29:2103-2114. [PMID: 34117615 DOI: 10.1007/s12350-021-02677-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 03/12/2021] [Accepted: 05/11/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Assessing endocardial strain using a single 13N-ammonia positron emission tomography (PET) scan would be clinically useful, given the association between ischemia and myocardial deformation. However, no software has been developed for strain analysis using PET. We evaluated the clinical potential of feature tracking-derived strain values measured using PET, based on associations with the myocardial flow reserve (MFR). METHODS AND RESULTS This retrospective study included 95 coronary artery disease patients who underwent myocardial 13N-ammonia PET. Semi-automatic measurements were made using a feature-tracking technique during myocardial cine imaging, and values were calculated using a 16-segment model. Adenosine-stressed global circumferential strain (CS) and global longitudinal strain (LS) values were compared with global MFR values. Stressed and resting global strain values were also compared. Global strain values were significantly lower in 39 patients with abnormal MFRs [< 2.0] than in 56 patients with normal MFRs [≥ 2.0]. The global CS values in the stressed state were significantly decreased than the resting state values in patients with abnormal MFRs. CONCLUSIONS This study applied endocardial feature-tracking to 13N-ammonia PET, and the results suggested that blood flow and myocardial motility could be clinically assessed in ischemic patients using a single PET scan.
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Affiliation(s)
- Masateru Kawakubo
- Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Michinobu Nagao
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
| | - Atsushi Yamamoto
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Risako Nakao
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Yuka Matsuo
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Kenji Fukushim
- Department of Nuclear Medicine, Saitama Medical University, Saitama, Japan
| | - Eri Watanabe
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Akiko Sakai
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Masayuki Sasaki
- Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shuji Sakai
- Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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Fukushima K, Momose M, Kanaya K, Kaimoto Y, Higuchi T, Yamamoto A, Nakao R, Matsuo Y, Nagao M, Kuji I, Abe K. Imaging of Heart Type Fatty Acid Binding Protein Under Acute Reperfusion Ischemia Using Radio-labeled Antibody in Rat Heart Model. Ann Nucl Cardiol 2022; 8:14-20. [PMID: 36540183 PMCID: PMC9754781 DOI: 10.17996/anc.21-00146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/30/2021] [Accepted: 09/02/2021] [Indexed: 06/17/2023]
Abstract
Purpose: Heart-type fatty acid binding protein (H-FABP) is primary transporter of free fatty acid and plays an important role in myocardial metabolism, which is characterized by high specificity and rapid appearance under ischemic condition. The objective of this study was to clarify the usefulness of imaging study of targeting H-FABP appearance using radio-labeled antibody, and correlation with myocardial fatty acid metabolism and perfusion in acute reperfusion ischemia. Method: Wistar rats were allotted to sham-operated control group (sham; n=4), ischemia non-reperfused group (IG; n=5), and ischemia-reperfusion group (RG; n=5). Ligation of left coronary artery (LCA) was performed for IG and RG. 20 min of ischemia was followed by 60min of reperfusion for RG. 125I labeled anti H-FABP antibody (anti H-FABP), BMIPP and 99mTc-sestamibi (MIBI) was injected intravenously. Multi-tracer digital autoradiogram was performed using µ-imager®. The ratio of radioactivity in LCA related (culprit) area to the inferior (remote) area (target uptake ratio=TUR) was generated. Results: In sham group, no visually detectable accumulation was observed for the anti H-FABP image, and TURMIBI and TURBMIPP were equivalent to 1. In IG, TURMIBI and TURBMIPP were remarkably low (0.12±0.01, 0.24±0.07). In RG, TURMIBI was significantly lower (0.20±0.03, p<0.05 vs. other groups). However, TURBMIPP was significantly higher (2.78±1.28, p<0.05) compared to the sham and IG, whereas anti H-FABP showed markedly higher ratio in the reperfused area compared to the sham and IG (3.43±0.73 vs. 0.31±0.13 and 1.09±0.07 for IG and sham; p<0.05, and <0.01, respectively). Conclusion: Anti H-FABP accumulated specifically in reperfused area under acute ischemia, and it accorded to the area where fatty acid metabolism was activated. This study has shown the future potential for clinical application in vivo imaging of acute coronary syndrome.
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Affiliation(s)
- Kenji Fukushima
- Department of Nuclear Medicine, Saitama Medical University International Medical Center, Japan
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Japan
| | - Mitsuru Momose
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Japan
| | - Kazuko Kanaya
- Department of Radiological Service, Tokyo Women's Medical University, Japan
| | - Yoko Kaimoto
- Department of Radiological Service, Tokyo Women's Medical University, Japan
| | - Takahiro Higuchi
- Department of Nuclear Medicine, University of Wuerzburg, Comprehensive Heart Failure Center, University of Wuerzburg, Germany
| | - Atsushi Yamamoto
- Department of Cardiology, Tokyo Women's Medical University, Japan
| | - Risako Nakao
- Department of Cardiology, Tokyo Women's Medical University, Japan
| | - Yuka Matsuo
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Japan
| | - Michinobu Nagao
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Japan
| | - Ichiei Kuji
- Department of Nuclear Medicine, Saitama Medical University International Medical Center, Japan
| | - Koichiro Abe
- Department of Radiology, Tokyo Medical University, Japan
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Iwaki M, Kessoku T, Tanaka K, Ozaki A, Kasai Y, Yamamoto A, Takahashi K, Kobayashi T, Nogami A, Honda Y, Ogawa Y, Imajo K, Oyamada S, Kobayashi N, Aishima S, Saito S, Nakajima A, Yoneda M. Comparison of long‐term prognosis between non‐obese and obese patients with non‐alcoholic fatty liver disease. JGH Open 2022; 6:696-703. [PMID: 36262543 PMCID: PMC9575321 DOI: 10.1002/jgh3.12808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/31/2022] [Accepted: 08/03/2022] [Indexed: 11/07/2022]
Abstract
Background and Aim Non‐alcoholic fatty liver disease (NAFLD) can progress in non‐obese patients as in obese patients. Reports on long‐term prognosis in non‐obese NAFLD patients are controversial. Therefore, we aimed to examine the long‐term prognosis of non‐obese patients with NAFLD. Methods This single‐center, retrospective cohort study enrolled biopsy‐proven non‐obese and obese NAFLD patients between January 2002 and December 2011 and followed them up until 31 March 2021, for death and clinical events (cardiovascular and liver‐related events and extrahepatic cancers). Results Of the 223 NAFLD patients, 58 (26.0%) were non‐obese. Compared with obese patients, they had a lower fibrosis stage (0.8 ± 0.80 vs 1.2 ± 0.91; P = 0.004), milder lobular inflammation (0.9 ± 0.7 vs 1.1 ± 0.7; P = 0.02), and significantly lower serum creatinine, total bilirubin, ferritin, and type IV collagen 7S and higher high‐density lipoprotein levels. After a median follow‐up of 8.9 years, no significant difference was noted in mortality between the two groups (2 [3.4%] non‐obese vs 5 [3.0%] obese; log‐rank test, P = 0.63). Twelve patients (20.7%) in the non‐obese group and 32 (19.4%) in the obese group had clinical events. Although the obese group had a higher incidence of clinical events during the first 10 years of follow‐up, the non‐obese group had a higher incidence after that (log‐rank test, P = 0.67). The non‐obese group had a high incidence of malignancy (9 [15.5%] non‐obese vs 14 [8.3%] obese; P = 0.13). Conclusion Non‐obese NAFLD does not necessarily have a good prognosis, and some cases have a poor prognosis such as extrahepatic cancers. Further validation is required in the future.
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Affiliation(s)
- Michihiro Iwaki
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
- Department of Palliative Medicine Yokohama City University Hospital Yokohama Japan
| | - Takaomi Kessoku
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
- Department of Palliative Medicine Yokohama City University Hospital Yokohama Japan
| | - Kosuke Tanaka
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
- Department of Palliative Medicine Yokohama City University Hospital Yokohama Japan
| | - Anna Ozaki
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
| | - Yuki Kasai
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
| | - Atsushi Yamamoto
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
| | - Kota Takahashi
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
| | - Takashi Kobayashi
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
| | - Asako Nogami
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
| | - Yasushi Honda
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
| | - Yuji Ogawa
- Department of Gastroenterology National Hospital Organization Yokohama Medical Center Yokohama Japan
| | - Kento Imajo
- Department of Gastroenterology Shinyurigaoka General Hospital Kawasaki Japan
| | | | | | - Shinichi Aishima
- Department of Pathology and Microbiology, Faculty of Medicine Saga University Saga Japan
| | - Satoru Saito
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
| | - Masato Yoneda
- Department of Gastroenterology and Hepatology Yokohama City University School of Medicine, Graduate School of Medicine Yokohama Japan
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50
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Iwaki M, Kessoku T, Tanaka K, Ozaki A, Kasai Y, Yamamoto A, Takahashi K, Kobayashi T, Nogami A, Honda Y, Ogawa Y, Imajo K, Yoneda M, Kobayashi N, Saito S, Nakajima A. Efficacy and safety of guanabenz acetate treatment for non-alcoholic fatty liver disease: a study protocol for a randomised investigator-initiated phase IIa study. BMJ Open 2022; 12:e060335. [PMID: 35820743 PMCID: PMC9277396 DOI: 10.1136/bmjopen-2021-060335] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
INTRODUCTION Non-alcoholic fatty liver disease (NAFLD) is a metabolic syndrome phenotype in the liver and thus obviously associated with metabolic abnormalities, including insulin resistance-related to hyperglycaemic and hyperlipidaemia. The prevalence of NAFLD is increasing worldwide. However, currently, there is no consensus regarding the efficacy and safety of drugs used to treat patients with NAFLD/non-alcoholic steatohepatitis (NASH). Guanabenz acetate, a selective α2-adrenoceptor stimulator used in the treatment of hypertension, binds at a high-affinity constant to a nuclear transcriptional coregulator, helicase with zinc finger 2 (Helz2) and inhibits Helz2-medaited steatosis in the liver; chronic oral administration of guanabenz acetate produces a dose-dependent inhibition of lipid accumulation by inhibiting lipogenesis and activating fatty acid Β-oxidation in the liver of obese mice, resulting in improvement of insulin resistance and hyperlipidaemia. Taken all together, guanabenz acetate has a potentially effective in improving the development of NAFLD/NASH and metabolic abnormalities. In this randomised, open label, parallel-group, phase IIa study, we made attempts to conduct a proof-of-concept assessment by evaluating the efficacy and safety of guanabenz acetate treatment in patients with NAFLD/NASH. METHODS AND ANALYSIS A total of 28 adult patients with NAFLD or NASH and hypertension complications meeting the inclusion/exclusion criteria will be enrolled. Patients will be randomised to receive either 4 or 8 mg guanabenz acetate (n=14 per group). Blood tests and MRI will be performed 16 weeks after commencement of treatment. The primary endpoint will be the percentage reduction in hepatic fat content (%) measured using MRI-proton density fat fraction from baseline by at least 3.46% at week 16 after treatment initiation. ETHICS AND DISSEMINATION Ethics approval was obtained from the Ethics Committee of Yokohama City University Hospital before participant enrolment (YCU021001). The results of this study will be submitted for publication in international peer-reviewed journals, and the key findings will be presented at international scientific conferences. Participants wishing to know the results of this study will be contacted directly on data publication. TRIAL REGISTRATION NUMBER This trial is registered with ClinicalTrials.gov (number: NCT05084404). PROTOCOL VERSION V.1.1, 19 August 2021.
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Affiliation(s)
- Michihiro Iwaki
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Takaomi Kessoku
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
- Department of Palliative Medicine, Yokohama City University Hospital, Yokohama, Japan
| | - Kosuke Tanaka
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
- Department of Palliative Medicine, Yokohama City University Hospital, Yokohama, Japan
| | - Anna Ozaki
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Yuki Kasai
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Atsushi Yamamoto
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Kota Takahashi
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Takashi Kobayashi
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Asako Nogami
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Yasushi Honda
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Yuji Ogawa
- Department of Gastroenterology, National Hospital Organisation Yokohama Medical Center, Yokohama, Japan
| | - Kento Imajo
- Department of Gastroenterology, Shin Yurigaoka General Hospital, Kawasaki, Japan
| | - Masato Yoneda
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | | | - Satoru Saito
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
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