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Tateishi E, Yi Y, Kai N, Kumagae T, Yamaguchi T, Kanaya H. Study on Improvement of Radio Propagation Characteristics of Cast Iron Boxes for Water Smart Meters. Sensors (Basel) 2023; 23:9716. [PMID: 38139561 PMCID: PMC10748203 DOI: 10.3390/s23249716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023]
Abstract
Water utilities in Japan face a number of challenges, including declining water demand due to a shrinking population, shrinking workforce, and aging water supply facilities. Widespread use of smart water meters is crucial for solving these problems. The widespread use of smart water meters is expected to bring many benefits such as reduced labor by automating meter reading, early identification of leaks, and visualization of pipeline data to strengthen the infrastructure of water services, business continuity, and customer service, as detailed data can be obtained using wireless communication. Demonstration tests are actively conducted in Japan; however, many problems have been reported with cast iron meter boxes blocking radio waves. To address the issue, a low-cost slit structure for cast iron meter boxes is investigated in this study. The results confirm that the L-shaped tapered slit array structure with a cavity, which can be fabricated in a cast iron integral structure, satisfies the design loads required for road installation. The proposed slit structure achieved gain characteristics from -3.32 to more than 9.54 dBi in the 800 to 920 MHz band. The gain characteristics of conventional cast iron meter boxes range from -15 to -20 dBi, and the gain has been significantly improved. Antennas with a gain of -2.0 to +1.5 dB (0.8 to 2.5 GHz) were used for the transmitter antenna, which was found to have a higher gain than the transmit antenna in the 800 to 880 MHz frequency band. In the 1.5 to 2.0 GHz band, a high peak gain of 4.25 dBi was achieved at 1660 MHz, with no null and the lowest gain confirmed that this is an improvement of more than 10 dBi over conventional products.
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Affiliation(s)
- Eiichi Tateishi
- Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0385, Japan; (Y.Y.); (H.K.)
- Hinode Holdings Ltd., Fukuoka 812-8636, Japan; (N.K.); (T.K.)
| | - Yuantong Yi
- Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0385, Japan; (Y.Y.); (H.K.)
| | - Nobuhiro Kai
- Hinode Holdings Ltd., Fukuoka 812-8636, Japan; (N.K.); (T.K.)
| | - Takaya Kumagae
- Hinode Holdings Ltd., Fukuoka 812-8636, Japan; (N.K.); (T.K.)
| | | | - Haruichi Kanaya
- Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0385, Japan; (Y.Y.); (H.K.)
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Ota E, Hiyoshi Y, Matsuura N, Ishikawa K, Fujinami F, Mukai T, Yamaguchi T, Nagasaki T, Akiyoshi T, Fukunaga Y. Standardization of preoperative stoma site marking and its utility for preventing stoma leakage: a retrospective study of 519 patients who underwent laparoscopic/robotic rectal cancer surgery. Tech Coloproctol 2023; 27:1387-1392. [PMID: 37358669 DOI: 10.1007/s10151-023-02839-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/17/2023] [Indexed: 06/27/2023]
Abstract
PURPOSE Stoma site marking is an important preoperative intervention for preventing various stoma-associated complications. In our institution, standardized stoma site marking is routinely performed before rectal cancer surgery with stoma creation, and various stoma-associated factors are recorded in the ostomy-record template. The present study investigated risk factors for stoma leakage. METHODS Our stoma site marking is standardized so that it can be performed by non-stoma specialists. To identify risk factors of stoma leakage at 3 months after surgery, various preoperative factors associated with stoma site marking in our ostomy-record template were retrospectively analyzed in 519 patients who underwent rectal cancer surgery with stoma creation from 2015 to 2020. RESULTS Stoma leakage was seen in 35 of the 519 patients (6.7%). The distance between the stoma site marking and the umbilicus was less than 60 mm in 27 of the 35 patients (77%) who experienced stoma leakage, so a distance of less than 60 mm was identified as an independent risk factor for stoma leakage. Aside from preoperative factors, stoma leakage was also caused by postoperative skin wrinkles or surgical scars near the stoma site in 8 of 35 patients (23%). CONCLUSION Preoperative standardized stoma site marking is necessary to achieve reliable marking that is easy to perform. To reduce the risk of stoma leakage, a distance of 60 mm or more between the stoma site marking and the umbilicus is ideal, and surgeons need to contrive ways to keep surgical scars away from the stoma site.
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Affiliation(s)
- E Ota
- Gastroenterological Center, Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Y Hiyoshi
- Gastroenterological Center, Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan.
| | - N Matsuura
- Gastroenterological Center, Department of Wound, Ostomy and Continence (WOC) Nursing, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - K Ishikawa
- Gastroenterological Center, Department of Wound, Ostomy and Continence (WOC) Nursing, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - F Fujinami
- Gastroenterological Center, Department of Wound, Ostomy and Continence (WOC) Nursing, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - T Mukai
- Gastroenterological Center, Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - T Yamaguchi
- Gastroenterological Center, Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - T Nagasaki
- Gastroenterological Center, Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - T Akiyoshi
- Gastroenterological Center, Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Y Fukunaga
- Gastroenterological Center, Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
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Hasegawa T, Ueda N, Yamada SI, Kato S, Iwata E, Hayashida S, Kojima Y, Shinohara M, Tojo I, Nakahara H, Yamaguchi T, Kirita T, Kurita H, Shibuya Y, Soutome S, Akashi M. Correction to: Denosumab-related osteonecrosis of the jaw after tooth extraction and the effects of a short drug holiday in cancer patients: a multicenter retrospective study. Osteoporos Int 2023; 34:1823-1825. [PMID: 37493979 DOI: 10.1007/s00198-023-06833-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Affiliation(s)
- T Hasegawa
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - N Ueda
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - S I Yamada
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Kato
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - E Iwata
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of Oral and Maxillofacial Surgery, Kakogawa Central City Hospital, Kakogawa, Japan
| | - S Hayashida
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Kojima
- Department of Dentistry and Oral Surgery, Kansai Medical University, Hirakata, Japan
| | - M Shinohara
- Department of Oral and Maxillofacial Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - I Tojo
- Department of Oral and Maxillofacial Surgery, Wakayama Medical University, Wakayama, Japan
| | - H Nakahara
- Department of Oral and Maxillofacial Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Yamaguchi
- Department of Preventive Dentistry, Research Field in Dentistry, Medical and Dental Sciences Area, Kagoshima University, Kagoshima, Japan
| | - T Kirita
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - H Kurita
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Shibuya
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - S Soutome
- Department of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - M Akashi
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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Sato T, Yamaguchi T, Aoki K, Kajiwara C, Kimura S, Maeda T, Yoshizawa S, Sasaki M, Murakami H, Hisatsune J, Sugai M, Ishii Y, Tateda K, Urita Y. Whole-genome sequencing analysis of molecular epidemiology and silent transmissions causing meticillin-resistant Staphylococcus aureus bloodstream infections in a university hospital. J Hosp Infect 2023; 139:141-149. [PMID: 37301229 DOI: 10.1016/j.jhin.2023.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND The emergence of novel genomic-type clones, such as community-associated meticillin-resistant Staphylococcus aureus (MRSA) and livestock-associated MRSA, and their invasion into hospitals have become major concerns worldwide; however, little information is available regarding the prevalence of MRSA in Japan. Whole-genome sequencing (WGS) has been conducted to analyse various pathogens worldwide. Therefore, it is important to establish a genome database of clinical MRSA isolates available in Japan. AIM A molecular epidemiological analysis of MRSA strains isolated from bloodstream-infected patients in a Japanese university hospital was conducted using WGS and single-nucleotide polymorphism (SNP) analysis. Additionally, through a review of patients' clinical characteristics, the effectiveness of SNP analysis as a tool for detecting silent nosocomial transmission that may be missed by other methods was evaluated in diverse settings and various time points of detection. METHODS Polymerase-chain-reaction-based staphylococcal cassette chromosome mec (SCCmec) typing was performed using 135 isolates obtained between 2014 and 2018, and WGS was performed using 88 isolates obtained between 2015 and 2017. FINDINGS SCCmec type II strains, prevalent in 2014, became rare in 2018, whereas the prevalence of SCCmec type IV strains increased from 18.75% to 83.87% of the population, and became the dominant clones. Clonal complex (CC) 5 CC8 and CC1 were detected between 2015 and 2017, with CC1 being dominant. In 88 cases, SNP analyses revealed nosocomial transmissions among 20 patients which involved highly homologous strains. CONCLUSIONS Routine monitoring of MRSA by whole-genome analysis is effective not only for gaining knowledge regarding molecular epidemiology, but also for detecting silent nosocomial transmission.
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Affiliation(s)
- T Sato
- Department of General Medicine and Emergency Care, Toho University Graduate School of Medicine, Tokyo, Japan; Department of General Medicine and Emergency Care, Toho University Omori Medical Centre, Tokyo, Japan.
| | - T Yamaguchi
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan.
| | - K Aoki
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
| | - C Kajiwara
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
| | - S Kimura
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
| | - T Maeda
- Department of General Medicine and Emergency Care, Toho University Omori Medical Centre, Tokyo, Japan
| | - S Yoshizawa
- Department of Clinical Laboratories, Toho University Omori Medical Centre, Tokyo, Japan
| | - M Sasaki
- Department of Clinical Laboratories, Toho University Omori Medical Centre, Tokyo, Japan
| | - H Murakami
- Department of Clinical Laboratories, Toho University Omori Medical Centre, Tokyo, Japan
| | - J Hisatsune
- National Institute of Infectious Diseases, Tokyo, Japan
| | - M Sugai
- National Institute of Infectious Diseases, Tokyo, Japan
| | - Y Ishii
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
| | - K Tateda
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan; Department of Clinical Laboratories, Toho University Omori Medical Centre, Tokyo, Japan
| | - Y Urita
- Department of General Medicine and Emergency Care, Toho University Omori Medical Centre, Tokyo, Japan
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Takada H, Yamashita K, Osawa L, Komiyama Y, Nakakuki N, Muraoka M, Suzuki Y, Sato M, Takano S, Fukasawa M, Yamaguchi T, Maekawa S, Takahashi K, Uchimura K, Enomoto N. Impact of Renal Function on the Prognosis of Patients Receiving Atezolizumab/Bevacizumab Combination Therapy and Lenvatinib Monotherapy for Unresectable Hepatocellular Carcinoma. Oncology 2023; 101:609-623. [PMID: 37279708 DOI: 10.1159/000531111] [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: 02/16/2023] [Accepted: 05/03/2023] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Several studies have reported kidney injury caused by immune checkpoint inhibitors, and proteinuria caused by vascular endothelial growth factor inhibitors for unresectable hepatocellular carcinoma (u-HCC). We investigated the relationship between renal function and prognosis in patients with u-HCC receiving atezolizumab and bevacizumab (AB) and lenvatinib (LEN) therapy. METHODS Fifty-one patients who received AB and 50 patients who received LEN therapy were included. We analyzed prognostic factors related to the overall survival (OS), and characteristics related to renal function. RESULTS In patients with AB therapy, OS was shorter in patients with baseline proteinuria of 1+ or higher, as assessed by urine dipstick test, compared to those with -/± (p = 0.024). There were many cases with two or more drugs with a high risk of renal dysfunction (p = 0.019) in patients with 1+ or higher. Furthermore, OS was shorter in the group with estimated glomerular filtration rate (eGFR) grade deterioration without urinary protein-creatinine ratio (UPCR) of 2 g/g·Cre or higher than in the other groups (p = 0.027). In the group where eGFR worsened without an increase in UPCR, there were many cases with a daily salt intake of 10 g or more (p = 0.027), three or more drugs with a high risk of renal dysfunction (p = 0.021), and a history of arteriosclerosis (p = 0.021). On the other hand, in patients with LEN therapy, OS tends to be shorter in patients with proteinuria of ± or higher, compared to those without (p = 0.074). There were many cases with a daily salt intake of 10 g or more in patients with ± or higher (p = 0.002). CONCLUSION In patients receiving AB and LEN therapy, baseline proteinuria was associated with OS. Renal function deterioration without proteinuria was associated with a poor prognosis in AB therapy. Excessive salt intake, preexisting atherosclerotic disease, and drug with a high risk of renal dysfunction were risk factors for renal deterioration.
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Affiliation(s)
- Hitomi Takada
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Koji Yamashita
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Leona Osawa
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yasuyuki Komiyama
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Natsuko Nakakuki
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masaru Muraoka
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yuichiro Suzuki
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Mitsuaki Sato
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shinichi Takano
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Mitsuharu Fukasawa
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Tatsuya Yamaguchi
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shinya Maekawa
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kazuya Takahashi
- Nephrology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kohei Uchimura
- Nephrology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Nobuyuki Enomoto
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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Chiba Y, Nose-Ogura S, Sekiguchi K, Eda K, Nakamura H, Koshimizu T, Yamamoto H, Yamaguchi T, Harada M, Wada-Hiraike O, Osuga Y. Development of University of Tokyo's eating disorders inventory in female athletes. J Obstet Gynaecol Res 2023. [PMID: 37088869 DOI: 10.1111/jog.15637] [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: 06/03/2022] [Accepted: 03/07/2023] [Indexed: 04/25/2023]
Abstract
AIMS This study aimed to develop a scale to screen for eating disorders in female athletes. METHODS Preliminary survey: A total of 275 female athletes (mean age: 19.4 ± 1.0 years) and 7 female athletes diagnosed with eating disorders (mean age: 20.1 ± 2.5 years) were administered screening items prepared based on an existing scale, followed by exploratory factor analysis. Main survey: Six items, relating to three factors, were extracted, and 201 female athletes (mean age: 22.3 ± 4.8 years) and 6 female athletes diagnosed with current or a history of eating disorders (mean age: 18.8 ± 2.9 years) were queried. The diagnostic validity of the scale was then evaluated. RESULTS Preliminary survey: Questions (α = 0.71) were extracted from six items, relating to three factors, and collectively termed the University of Tokyo's eating disorders inventory in female athletes (TEDIFA). To determine the scale cut-off score, ROC analysis was performed with the total score, and the cut-off and gray zone scores were set at 13 and 11, respectively. Main survey: At the cut-off score of 13, AUC, sensitivity, and specificity were 0.83 (p < 0.05), 75%, and 90%, respectively. CONCLUSIONS The scale that was developed, TEDIFA, consisted of six items. The cut-off scores were set at 11 for the gray zone (sensitivity: 75%; specificity: 56%; accurate diagnosis rate: 60%), and 13 for positivity (sensitivity: 75%; specificity: 90%; accurate diagnosis rate: 87%), demonstrating the reliability and validity of the scale.
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Affiliation(s)
- Yoko Chiba
- Department of Psychological and Behavioral Science Faculty of Liberal Arts, Miyagi Gakuin Women's University, Sendai, Japan
| | - Sayaka Nose-Ogura
- Department of Obstetrics and Gynecology, University of Tokyo Hospital, Tokyo, Japan
| | - Kuniko Sekiguchi
- Sports Clinic, Sports Medical Center, Japan Institute of Sports Sciences, Japan High Performance Sport Center, Tokyo, Japan
- Meguro Ekimae Mental Clinic, Tokyo, Japan
| | - Kaori Eda
- Conditioning Section, Sports Medical Center, Japan Institute of Sports Sciences, Japan High Performance Sport Center, Tokyo, Japan
| | - Hiroe Nakamura
- Department of Obstetrics and Gynecology, University of Tokyo Hospital, Tokyo, Japan
| | - Takako Koshimizu
- Department of Food Science Faculty of Home Economics Major in Food Science, Otsuma Women's University, Tokyo, Japan
| | - Hiroaki Yamamoto
- Department of Psychiatry, Kitasato University Medical Center, Kitamoto, Japan
| | - Tatsuya Yamaguchi
- Department of Neuropsychiatry, Keio University, Tokyo, Japan
- Institute for Integrated Sports Medicine, School of Medicine, Keio University, Tokyo, Japan
- Sports Medical Research Center, Keio University, Yokohama, Japan
- Sports Medicine Laboratory, School of Medicine, Graduate School of Health and Sports Science, Juntendo University, Tokyo, Japan
| | - Miyuki Harada
- Department of Obstetrics and Gynecology, University of Tokyo Hospital, Tokyo, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, University of Tokyo Hospital, Tokyo, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, University of Tokyo Hospital, Tokyo, Japan
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Matsuzawa R, Morise M, Ito K, Hataji O, Takahashi K, Kuwatsuka Y, Goto Y, Imaizumi K, Itani H, Yamaguchi T, Zenke Y, Oki M, Ishii M. 46P Multi-center, phase II study of docetaxel (DTX) plus ramucirumab (RAM) following platinum-based chemotherapy plus ICIs in patients with NSCLC: SCORPION study. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00300-3] [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: 04/04/2023]
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Komiyama Y, Motosugi U, Maekawa S, Osawa L, Nakakuki N, Takada H, Muraoka M, Suzuki Y, Sato M, Takano S, Fukasawa M, Yamaguchi T, Onishi H, Yin M, Enomoto N. Early diagnosis of hepatic inflammation in Japanese nonalcoholic fatty liver disease patients using 3D MR elastography. Hepatol Res 2023; 53:208-218. [PMID: 36372908 PMCID: PMC10600503 DOI: 10.1111/hepr.13858] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND The damping ratio (DR) and the loss modulus (G″) obtained by 3D MR elastography complex modulus analysis has been reported recently to reflect early intrahepatic inflammation, and is expected to be a noninvasive biomarker of inflammation in nonalcoholic fatty liver disease (NAFLD). However, the role of the DR and the G″ in Japanese NAFLD patients remains unclear. METHODS We enrolled 39 Japanese patients with NAFLD who underwent liver biopsy and 3D MR elastography within 1 month and analyzed the association between DR, G″, and histological activity. RESULTS Regarding DR, no evident correlation was observed between the DR and histological activity (p = 0.14) when patients with all fibrosis stages were included. However, when patients were restricted up to stage F2 fibrosis, the association of the DR and inflammation became significant, the DR increasing with the degree of activity (p = 0.02). Among the constituents of fibrosis activity, ballooning correlated with the DR (p < 0.01) while lobular inflammation did not. Regarding G″, it was correlated with histological activity (p < 0.01), ballooning (p < 0.01), and lobular inflammation (p < 0.01) in patients with all fibrosis stages and in patients up to F2 fibrosis (p = 0.03 for activity and p = 0.04 for ballooning). The best cutoff value of DR for hepatitis activity in patients within the F2 stage was 0.094 (area under the receiver operating characteristic curve 0.775, 95% CI: 0.529-1.000) and G″ was 0.402 (area under the receiver operating characteristic curve 0.825, 95% CI: 0.628-1.000). CONCLUSIONS The DR and G″ reflected the histological activity in Japanese patients with NAFLD during the early stage, indicating these values for noninvasive diagnosis of inflammation in Japanese patients with NAFLD.
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Affiliation(s)
- Yasuyuki Komiyama
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Utaroh Motosugi
- Department or Radiology, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Shinya Maekawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Leona Osawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Natsuko Nakakuki
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Hitomi Takada
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Masaru Muraoka
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Yuichiro Suzuki
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Mitsuaki Sato
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Shinichi Takano
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Mitsuharu Fukasawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Tatsuya Yamaguchi
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Hiroshi Onishi
- Department or Radiology, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Meng Yin
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Nobuyuki Enomoto
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
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Yamaguchi T, Yamamoto Y, Egashira K, Sato A, Kondo Y, Saiki S, Kimura M, Chikazawa T, Yamamoto Y, Ishigami A, Murakami S. Oxidative Stress Inhibits Endotoxin Tolerance and May Affect Periodontitis. J Dent Res 2023; 102:331-339. [PMID: 36529984 DOI: 10.1177/00220345221138523] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Periodontal disease is caused by dysbiosis of the dental biofilm and the host inflammatory response. Various pathogenic factors, such as proteases and lipopolysaccharides (LPSs) produced by bacteria, are involved in disease progression. Endotoxin tolerance is a function of myeloid cells, which sustain inflammation and promote tissue regeneration upon prolonged stimulation by endotoxins such as LPS. The role of endotoxin tolerance is gaining attention in various chronic inflammatory diseases, but its role in periodontal disease remains elusive. Oxidative stress, one of the major risk factors for periodontal disease, promotes disease progression through various mechanisms, of which only some are known. The effect of oxidative stress on endotoxin tolerance has not yet been studied, and we postulated that endotoxin tolerance regulation may be an additional mechanism through which oxidative stress influences periodontal disease. This study aimed to reveal the effect of oxidative stress on endotoxin tolerance and that of endotoxin tolerance on periodontitis progression. The effect of oxidative stress on endotoxin tolerance was analyzed in vitro using peritoneal macrophages of mice and hydrogen peroxide (H2O2). The results showed that oxidative stress inhibits endotoxin tolerance induced by Porphyromonas gingivalis LPS in macrophages, at least partially, by downregulating LPS-elicited negative regulators of Toll-like receptor (TLR) signaling. A novel oxidative stress mouse model was established using SMP30KO mice incapable of ascorbate biosynthesis. Using this model, we revealed that oxidative stress impairs endotoxin tolerance potential in macrophages in vivo. Furthermore, gingival expression of endotoxin tolerance-related genes and TLR signaling negative regulators was decreased, and symptoms of ligature-induced periodontitis were aggravated in the oxidative stress mouse model. Our findings suggest that oxidative stress may contribute to periodontitis progression through endotoxin tolerance inhibition.
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Affiliation(s)
- T Yamaguchi
- R&D Headquarters, LION Corporation, Tokyo, Japan.,Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Y Yamamoto
- R&D Headquarters, LION Corporation, Tokyo, Japan
| | - K Egashira
- R&D Headquarters, LION Corporation, Tokyo, Japan
| | - A Sato
- Molecular Regulation of Aging, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Y Kondo
- Molecular Regulation of Aging, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.,Faculty of Human Sciences, Waseda University, Tokyo, Japan
| | - S Saiki
- R&D Headquarters, LION Corporation, Tokyo, Japan
| | - M Kimura
- R&D Headquarters, LION Corporation, Tokyo, Japan
| | - T Chikazawa
- R&D Headquarters, LION Corporation, Tokyo, Japan
| | - Y Yamamoto
- R&D Headquarters, LION Corporation, Tokyo, Japan
| | - A Ishigami
- Molecular Regulation of Aging, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - S Murakami
- Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
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10
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Suzuki Y, Maekawa S, Yamashita K, Osawa L, Komiyama Y, Nakakuki N, Takada H, Muraoka M, Sato M, Takano S, Fukasawa M, Yamaguchi T, Funayama S, Morisaka H, Onishi H, Enomoto N. Effect of a combination of pemafibrate and a mild low-carbohydrate diet on obese and non-obese patients with metabolic-associated fatty liver disease. J Gastroenterol Hepatol 2023. [PMID: 36811251 DOI: 10.1111/jgh.16154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/07/2023] [Accepted: 02/19/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND AND AIM Recently, pemafibrate and a low-carbohydrate diet (LCD) have each been reported to improve fatty liver disease. However, it is unclear whether their combination improves fatty liver disease and is equally effective in obese and non-obese patients. METHODS In 38 metabolic-associated fatty liver disease (MAFLD) patients, classified by baseline body mass index (BMI), changes in laboratory values, magnetic resonance elastography (MRE), and magnetic resonance imaging-proton density fat fraction (MRI-PDFF) were studied after 1 year of combined pemafibrate plus mild LCD. RESULTS The combination treatment resulted in weight loss (P = 0.002), improvement in hepatobiliary enzymes (γ-glutamyl transferase, P = 0.027; aspartate aminotransferase, P < 0.001; alanine transaminase [ALT], P < 0.001), and improvement in liver fibrosis markers (FIB-4 index, P = 0.032; 7 s domain of type IV collagen, P = 0.002; M2BPGi, P < 0.001). Vibration-controlled transient elastography improved from 8.8 to 6.9 kPa (P < 0.001) and MRE improved from 3.1 to 2.8 kPa (P = 0.017) in the liver stiffness. MRI-PDFF improved from 16.6% to 12.3% in liver steatosis (P = 0.007). In patients with a BMI of 25 or higher, improvements of ALT (r = 0.659, P < 0.001) and MRI-PDFF (r = 0.784, P < 0.001) were significantly correlated with weight loss. However, in patients with a BMI below 25, the improvements of ALT or PDFF were not accompanied by weight loss. CONCLUSIONS Combined treatment with pemafibrate and a low-carbohydrate diet resulted in weight loss and improvements in ALT, MRE, and MRI-PDFF in MAFLD patients. Although such improvements were associated with weight loss in obese patients, the improvements were observed irrespective of weight loss in non-obese patients, indicating this combination can be effective both in obese and non-obese MAFLD patients.
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Affiliation(s)
- Yuichiro Suzuki
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shinya Maekawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kohji Yamashita
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Leona Osawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yasuyuki Komiyama
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Natsuko Nakakuki
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hitomi Takada
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masaru Muraoka
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Mitsuaki Sato
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shinichi Takano
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Mitsuharu Fukasawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Tatsuya Yamaguchi
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Satoshi Funayama
- Department of Radiology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan.,Department of Radiology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Hiroyuki Morisaka
- Department of Radiology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hiroshi Onishi
- Department of Radiology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Nobuyuki Enomoto
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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11
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Takada H, Yamashita K, Osawa L, Komiyama Y, Nakakuki N, Muraoka M, Suzuki Y, Sato M, Takano S, Fukasawa M, Yamaguchi T, Maekawa S, Enomoto N. Prediction of Therapeutic Response Using Contrast-Enhanced Ultrasound in Japanese Patients Treated with Atezolizumab and Bevacizumab for Unresectable Hepatocellular Carcinoma. Oncology 2022; 101:173-184. [PMID: 36516803 DOI: 10.1159/000527752] [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: 08/04/2022] [Accepted: 10/17/2022] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Atezolizumab and bevacizumab (AB) therapy was the first-line treatment for unresectable hepatocellular carcinoma (u-HCC). However, the predictive marker of therapeutic response that can be easily used in clinical practice is still unknown. We prospectively investigated the utility of time-intensity curve (TIC) analysis using contrast-enhanced ultrasound (CEUS) as a predictive indicator of therapeutic response after the start of AB therapy. METHODS Thirty-five patients who received AB therapy for u-HCC were included in this study. TIC analysis was performed in 28 patients who were able to undergo CEUS before and 3-7 days after administration. We analyzed prognostic factors related to the initial therapeutic response and long progression-free survival (PFS). RESULTS The initial therapeutic response using dynamic computed tomography or Gd-EOB magnetic resonance imaging at 8-12 weeks after administration was partial response/stable disease/progressive disease (PD) in 14/12/9 cases (40/34/26%). Cases with PD (n = 9) had more cases without decreased blood flow in TIC analysis compared with cases with non-PD (100 vs. 18%, p = 0.001). Cases without decreased blood flow in TIC analysis (n = 10) had more cases with PD compared with cases with decreased blood flow (60 vs. 0%, p = 0.001). PFS in patients without decreased blood flow early after the administration was shorter than that in those with decreased blood flow (9.1 vs. 28 weeks, p = 0.0051). CONCLUSION Early evaluation by TIC analysis using CEUS may be useful in predicting the therapeutic response in patients treated with AB therapy for u-HCC.
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Affiliation(s)
- Hitomi Takada
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Koji Yamashita
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Leona Osawa
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yasuyuki Komiyama
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Natsuko Nakakuki
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masaru Muraoka
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yuichiro Suzuki
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Mitsuaki Sato
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shinichi Takano
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Mitsuharu Fukasawa
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Tatsuya Yamaguchi
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shinya Maekawa
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Nobuyuki Enomoto
- Gastroenterology and Hepatology Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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12
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Suzuki K, Yamaguchi T, Kohda M, Tanaka M, Takemura H, Wakita M, Tabe Y, Kato S, Nasu M, Hashimoto T, Mine S, Serizawa N, Tomishima K, Nagahara A, Matsuda T, Yamaji T, Tsugane S, Saito Y, Daiko H, Yoshikawa T, Kato K, Okusaka T, Ochiya T, Yamamoto Y, Yotsui S, Yamamoto T, Yamasaki T, Miyata H, Yasui M, Omori T, Ohkawa K, Ikezawa K, Nakabori T, Sugimoto N, Kudo T, Yoshida K, Ohue M, Nishizawa T. Establishment of preanalytical conditions for microRNA profile analysis of clinical plasma samples. PLoS One 2022; 17:e0278927. [PMID: 36516194 PMCID: PMC9750036 DOI: 10.1371/journal.pone.0278927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 11/23/2022] [Indexed: 12/15/2022] Open
Abstract
The relationship between the expression of microRNAs (miRNAs) in blood and a variety of diseases has been investigated. MiRNA-based liquid biopsy has attracted much attention, and cancer-specific miRNAs have been reported. However, the results of analyses of the expression of these miRNAs vary among studies. The reproduction of results regarding miRNA expression levels could be difficult if there are differences in the data acquisition process. Previous studies have shown that the anticoagulant type used during plasma preparation and sample storage conditions could contribute to differences in measured miRNA levels. Thus, the impact of these preanalytical conditions on comprehensive miRNA expression profiles was examined. First, the miRNA expression profiles of samples obtained from healthy volunteers were analyzed using next-generation sequencing. Based on an analysis of the library concentration, human genome identification rate, ratio of unique sequences and expression profiles, the optimal preanalytical conditions for obtaining highly reproducible miRNA expression profiles were established. The optimal preanalytical conditions were as follows: ethylenediaminetetraacetic acid (EDTA) as the anticoagulant, whole-blood storage at room temperature within 6 hours, and plasma storage at 4°C or -20°C within 30 days. Next, plasma samples were collected from 60 cancer patients (3 facilities × 20 patients/facility), and miRNA expression profiles were analyzed. There were no significant differences in measurements except in the expression of erythrocyte-derived hsa-miR-451a. However, the variation in hsa-miR-451a levels was smaller among facilities than among individuals. This finding suggests that samples obtained from the same facility could show significantly different degrees of hemolysis across individuals. We found that the standardization of anticoagulant use and storage conditions contributed to reducing the variation in sample quality across facilities. The findings from this study could be useful in developing protocols for collecting samples from multiple facilities for cancer screening tests.
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Affiliation(s)
- Kuno Suzuki
- Healthcare Business Department, PFDeNA, Inc., Tokyo, Japan
- * E-mail:
| | | | - Masakazu Kohda
- Healthcare Business Department, PFDeNA, Inc., Tokyo, Japan
| | - Masami Tanaka
- Healthcare Business Department, PFDeNA, Inc., Tokyo, Japan
| | - Hiroyuki Takemura
- Department of Clinical Laboratory, Juntendo University Hospital, Tokyo, Japan
| | - Mitsuru Wakita
- Department of Clinical Laboratory, Juntendo University Hospital, Tokyo, Japan
| | - Yoko Tabe
- Department of Clinical Laboratory, Juntendo University Hospital, Tokyo, Japan
| | - Shunsuke Kato
- Department of Clinical Oncology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Motomi Nasu
- Department of Esophageal and Gastroenterological Surgery, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takashi Hashimoto
- Department of Esophageal and Gastroenterological Surgery, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shinji Mine
- Department of Esophageal and Gastroenterological Surgery, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nobuko Serizawa
- Department of Gastroenterology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ko Tomishima
- Department of Gastroenterology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akihito Nagahara
- Department of Gastroenterology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takahisa Matsuda
- Cancer Screening Center, National Cancer Center Hospital, Tokyo, Japan
| | - Taiki Yamaji
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Shoichiro Tsugane
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Yutaka Saito
- Department of Endoscopy, National Cancer Center Hospital, Tokyo, Japan
| | - Hiroyuki Daiko
- Department of Esophageal Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Takaki Yoshikawa
- Department of Gastric Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Ken Kato
- Department of Head and Neck, Esophageal Medical Oncology / Department of Gastrointestinal Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Takuji Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Takahiro Ochiya
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, Tokyo, Japan
| | - Yusuke Yamamoto
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, Tokyo, Japan
| | - Shoji Yotsui
- Clinical Laboratory, Osaka International Cancer Institute, Osaka, Japan
| | - Takashi Yamamoto
- Clinical Laboratory, Osaka International Cancer Institute, Osaka, Japan
| | - Tomoyuki Yamasaki
- Clinical Laboratory, Osaka International Cancer Institute, Osaka, Japan
| | - Hiroshi Miyata
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka, Japan
| | - Masayoshi Yasui
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka, Japan
| | - Takeshi Omori
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka, Japan
| | - Kazuyoshi Ohkawa
- Department of Hepatobiliary and Pancreatic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Kenji Ikezawa
- Department of Hepatobiliary and Pancreatic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Tasuku Nakabori
- Department of Hepatobiliary and Pancreatic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Naotoshi Sugimoto
- Department of Medical Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Toshihiro Kudo
- Department of Medical Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Keiichi Yoshida
- Next-generation Precision Medicine Research Center, Osaka International Cancer Institute, Osaka, Japan
| | - Masayuki Ohue
- Next-generation Precision Medicine Research Center, Osaka International Cancer Institute, Osaka, Japan
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13
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Katoh R, Maekawa S, Osawa L, Komiyama Y, Nakakuki N, Takada H, Matsuda S, Muraoka M, Suzuki Y, Sato M, Tatsumi A, Takano S, Fukasawa M, Yamaguchi T, Nakayama Y, Inoue T, Enomoto N. Significance of serum IP-10/CXCL10 measurement in predicting post-direct acting antiviral treatment liver function in patients with HCV-decompensated liver cirrhosis. Hepatol Res 2022; 53:280-288. [PMID: 36445119 DOI: 10.1111/hepr.13861] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/02/2022] [Accepted: 11/17/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Recently, with the advent of sofosbuvir/velpatasvir therapy, sustained virological response (SVR) can now be achieved even in patients with decompensated cirrhosis (dLC). However, the prognosis after SVR does not always improve in dLC, and appropriate indicators enabling prediction of prognosis is desired. PATIENTS AND METHODS Serum IP-10/CXCL10 levels were measured in 47 patients (15 chronic hepatitis [CH], 17 compensated cirrhosis [cLC], and 15 dLC) receiving direct acting antiviral (DAA) therapy, and their changes during the therapy were examined. RESULTS All the patients achieved SVR. In patients with CH, the average IP-10 level was 367, 102, and 68 pg/ml respectively at baseline, at the end of therapy and at 12 weeks after SVR (SVR12), and was decreased upon DAA therapy (P < 0.001). In patients with cLC, IP-10 was respectively 215, 91, and 77 pg/ml, and was decreased upon DAA therapy (P < 0.001) while it was 283, 131, and 182 pg/ml in patients with dLC and there was no evident decrease (P = 0.55). When patients with dLC were further classified depending on the difference in Child-Pugh (CP) score improvement at SVR12, a significant decrease in IP-10 was observed after treatment in those with improvement (P = 0.023) while a significant increase was observed in those without improvement (P = 0.016). CONCLUSION While serum IP-10 level was decreased in patients with CH/cLC and dLC with post-SVR-CP improvement following SVR, it was increased in patients with dLC without post-SVR CP improvement. The result indicates that IP-10 dynamics may be useful for predicting liver function after DAA therapy.
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Affiliation(s)
- Ryo Katoh
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Shinya Maekawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Leona Osawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Yasuyuki Komiyama
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Natsuko Nakakuki
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Hitomi Takada
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Shuya Matsuda
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Masaru Muraoka
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Yuichiro Suzuki
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Mitsuaki Sato
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Akihisa Tatsumi
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Shinichi Takano
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Mitsuharu Fukasawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Tatsuya Yamaguchi
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Yasuhiro Nakayama
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Taisuke Inoue
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Nobuyuki Enomoto
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
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14
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Higashi K, Yamaguchi T, Takahashi Y, Hariki A. Corrigendum: Charge-transfer effect in Fe 2 pcore-level x-ray photoemission spectra of trivalent Fe oxides: LDA + DMFT study (2022 J. Phys.: Condens. Matter34375602). J Phys Condens Matter 2022; 34:509502. [PMID: 36314773 DOI: 10.1088/1361-648x/ac9bb8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Affiliation(s)
- Keisuke Higashi
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Tatsuya Yamaguchi
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Yoshihiro Takahashi
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Atsushi Hariki
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
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15
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Hayakawa H, Fukasawa M, Takano S, Shindo H, Takahashi E, Kawakami S, Fukasawa Y, Kuratomi N, Sato T, Kadokura M, Hirose S, Maekawa S, Inoue T, Yamaguchi T, Harai S, Kawaida H, Kono H, Mochizuki K, Enomoto N. Carcinoembryonic antigen levels in pancreatic juice are associated with histological subtypes of intraductal papillary mucinous neoplasm of the pancreas. DEN Open 2022; 3:e169. [PMID: 36247313 PMCID: PMC9552336 DOI: 10.1002/deo2.169] [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: 07/04/2022] [Revised: 09/05/2022] [Accepted: 09/10/2022] [Indexed: 11/05/2022]
Abstract
Background The present study aimed to examine the correlation between preoperative carcinoembryonic antigen levels in pancreatic juice (PJ‐CEA) and the histological subtype of intraductal papillary mucinous neoplasm (IPMN). Methods We enrolled IPMN patients who underwent endoscopic retrograde pancreatography between March 2002 and March 2018. Clinical factors associated with IPMN histological subtypes of 67 patients who underwent surgery were analyzed. Furthermore, the relationship between CEA immunohistochemistry findings and histological subtypes was investigated. Results Median PJ‐CEA were 15 ng/ml in the gastric type, 150 ng/ml in the intestinal type, and 175 ng/ml in the pancreatobiliary type. Both intestinal and pancreatobiliary types had significantly higher PJ‐CEA than the gastric type (p = 0.001). In the analysis of histological subtype predictors, high PJ‐CEA (≥63 ng/ml) only showed a significant difference in multivariate analyses (95% confidence interval 4.8–70.2; p < 0.001). Immunohistochemistry findings revealed significantly higher CEA expression in the non‐gastric type than in the gastric type (p < 0.001). The non‐gastric type showed a significantly worse prognosis than the gastric type (p = 0.017). Conclusion PJ‐CEA was an independent predictor of IPMN histological subtypes in a preoperative setting. High PJ‐CEA predict the non‐gastric type, while low PJ‐CEA predict the gastric type.
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Affiliation(s)
- Hiroshi Hayakawa
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Mitsuharu Fukasawa
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Shinichi Takano
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Hiroko Shindo
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Ei Takahashi
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Satoshi Kawakami
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Yoshimitsu Fukasawa
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Natsuhiko Kuratomi
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Tadashi Sato
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Makoto Kadokura
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Sumio Hirose
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Shinya Maekawa
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Taisuke Inoue
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Tatsuya Yamaguchi
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Shota Harai
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Hiromichi Kawaida
- First Department of SurgeryFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Hiroshi Kono
- First Department of SurgeryFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Kunio Mochizuki
- Department of PathologyFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Nobuyuki Enomoto
- First Department of Internal MedicineFaculty of Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
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16
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Yamaguchi T, Kazahari N. Correction to: Fission-fusion dynamics in a wild group of Japanese macaques (Macaca fuscata) on Kinkazan Island caused by the repeated separation of an alpha male being followed by females. Primates 2022; 63:583. [PMID: 36136140 DOI: 10.1007/s10329-022-01023-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T Yamaguchi
- Laboratory of Human Evolution Studies, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - N Kazahari
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Japan. .,Research Association of Local Population, Sapporo, Japan.
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17
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Yamaguchi T, Tanaka S, Shimizu K. Trousseau's sign in a patient with Crohn's disease. QJM 2022; 115:627-628. [PMID: 35604106 DOI: 10.1093/qjmed/hcac127] [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: 05/17/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
- T Yamaguchi
- Primary Care and Advanced Triage Section, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka 534-0021, Japan
| | - S Tanaka
- Primary Care and Advanced Triage Section, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka 534-0021, Japan
| | - K Shimizu
- Primary Care and Advanced Triage Section, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka 534-0021, Japan
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18
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Hazama D, Uemura T, Kenmotsu H, Meano K, Wakuda K, Teraoka S, Kobe H, Azuma K, Yamaguchi T, Masuda T, Yokoyama T, Otsubo K, Haratani K, Hayakawa D, Oki M, Takemoto S, Ozaki T, Okabe T, Hata A, Hashimoto H, Yamamoto N, Nakagawa K. EP16.02-005 Liquid Biopsy Detects Genomic Drivers in Non-small Cell Lung Cancer without EGFR Mutations by Single-plex Testing: WJOG13620L. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Boku S, Satake H, Ohta T, Mitani S, Kawakami K, Matsumoto T, Yamazaki E, Hasegawa H, Ikoma T, Uemura M, Yamaguchi T, Ishizuka Y, Kurokawa Y, Sakai D, Kawakami H, Shimokawa T, Tsujinaka T, Kato T, Satoh T, Kagawa Y. 440TiP TRESBIEN (OGSG 2101): Encorafenib, binimetinib and cetuximab for early relapse stage II/III BRAF V600E-mutated CRC. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.578] [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: 11/16/2022] Open
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20
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Akazawa Y, Yoshikawa A, Hashimoto K, Ishijima M, Kanazu M, Yano Y, Mori M, Yamaguchi T, Uchida J. EP08.02-168 Efficacy, Safety and Treatment Courses for Patients with ALK Oncogene Positive NSCLC; Retrospective Data in Single Institute. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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21
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Yamazaki K, Satake H, Takashima A, Mizusawa J, Kataoka T, Fukuda H, Ishizuka Y, Suwa Y, Numata K, Shibata N, Asayama M, Yokota M, Tsushima T, Ohta T, Yamaguchi T, Hamaguchi T, Kanemitsu Y. 446TiP Randomized phase III study of bi-weekly trifluridine/tipiracil (FTD/TPI) plus bevacizumab (BEV) vs. FTD/TPI for chemorefractory metastatic colorectal cancer (mCRC): ROBiTS/JCOG2014. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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22
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Higashi K, Yamaguchi T, Takahashi Y, Hariki A. Charge-transfer effect in Fe 2 pcore-level x-ray photoemission spectra of trivalent Fe oxides: LDA + DMFT study. J Phys Condens Matter 2022; 34:375602. [PMID: 35793685 DOI: 10.1088/1361-648x/ac7f18] [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: 05/09/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Motivated by recent hard x-ray photoemission spectroscopy (XPS) experiment for trivalent Fe oxides Sr2FeMoO6(ferrimagnetic correlated metal) and LaFeO3(antiferromagnetic Mott insulator) (Phuyalet al2021J. Phys. Chem.C12511249-56), we present a theoretical analysis of the Fe 2pcore-level spectra using a computational method based on local density approximation combined with dynamical mean-field theory. We find that a nonlocal screening (NLS) effect in the XPS final states is crucial for interpreting the experimental XPS result of both the Fe oxides. A close relationship between the NLS feature in core-level spectra and a long-range magnetic ordering is emphasized.
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Affiliation(s)
- Keisuke Higashi
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Tatsuya Yamaguchi
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Yoshihiro Takahashi
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Atsushi Hariki
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
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Yamauchi K, Sato M, Osawa L, Matsuda S, Komiyama Y, Nakakuki N, Takada H, Katoh R, Muraoka M, Suzuki Y, Tatsumi A, Miura M, Takano S, Amemiya F, Fukasawa M, Nakayama Y, Yamaguchi T, Inoue T, Maekawa S, Enomoto N. Analysis of direct-acting antiviral-resistant hepatitis C virus haplotype diversity by single-molecule and long-read sequencing. Hepatol Commun 2022; 6:1634-1651. [PMID: 35357088 PMCID: PMC9234623 DOI: 10.1002/hep4.1929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 11/08/2022] Open
Abstract
The method of analyzing individual resistant hepatitis C virus (HCV) by a combination of haplotyping and resistance-associated substitution (RAS) has not been fully elucidated because conventional sequencing has only yielded short and fragmented viral genomes. We performed haplotype analysis of HCV mutations in 12 asunaprevir/daclatasvir treatment-failure cases using the Oxford Nanopore sequencer. This enabled single-molecule long-read sequencing using rolling circle amplification (RCA) for correction of the sequencing error. RCA of the circularized reverse-transcription polymerase chain reaction products successfully produced DNA longer than 30 kilobase pairs (kb) containing multiple tandem repeats of a target 3 kb HCV genome. The long-read sequencing of these RCA products could determine the original sequence of the target single molecule as the consensus nucleotide sequence of the tandem repeats and revealed the presence of multiple viral haplotypes with the combination of various mutations in each host. In addition to already known signature RASs, such as NS3-D168 and NS5A-L31/Y93, there were various RASs specific to a different haplotype after treatment failure. The distribution of viral haplotype changed over time; some haplotypes disappeared without acquiring resistant mutations, and other haplotypes, which were not observed before treatment, appeared after treatment. Conclusion: The combination of various mutations other than the known signature RAS was suggested to influence the kinetics of individual HCV quasispecies in the direct-acting antiviral treatment. HCV haplotype dynamic analysis will provide novel information on the role of HCV diversity within the host, which will be useful for elucidating the pathological mechanism of HCV-related diseases.
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Affiliation(s)
- Kozue Yamauchi
- Department of Gastroenterology and HepatologyFaculty of MedicineUniversity of YamanashiYamanashiJapan
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Kawakami H, Oyamada S, Horie Y, Fumita S, Izawa N, Miyaji T, Kawaguchi T, Yamaguchi T, Nakajima T. P-35 An observational study of health-related quality of life (HRQoL) with electronic patient-reported outcome (ePRO) monitoring during nivolumab therapy for advanced gastric cancer as the 3rd or later line treatment: NIVO-G QoL study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.126] [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: 11/30/2022] Open
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25
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Mori Y, Iwamoto F, Kuno T, Kobayashi S, Yoshida T, Yamaguchi T, Takano S, Kondo T, Kirito K, Enomoto N. Trisomy 8-positive Polycythemia Vera Complicated with Intestinal Behçet's-like Disease: A New Perspective for a Clinical Approach. Intern Med 2022; 61:1713-1719. [PMID: 34744109 PMCID: PMC9259299 DOI: 10.2169/internalmedicine.8395-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Behçet's disease (BD) is a multisystem inflammatory disease of unknown origin. It rarely but occasionally occurs together with myelodysplastic syndrome and primary myelofibrosis. Trisomy 8 is one of the most common cytogenetic abnormalities in myeloid neoplasms; however, the association of BD with polycythemia vera (PV) and trisomy 8 has not been reported. A 70-year-old woman, diagnosed with PV and treated with hydroxyurea, had bloody stool due to multiple ulcers in the ileocecal region. Considering the lack of a response to treatment and other features, we suspected complication with intestinal Behçet's-like disease. Our case suggests relationships among BD, trisomy 8, and PV.
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Affiliation(s)
- Yuki Mori
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Japan
| | - Fumihiko Iwamoto
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Japan
| | - Toru Kuno
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Japan
| | - Shoji Kobayashi
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Japan
| | - Takashi Yoshida
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Japan
| | - Tatsuya Yamaguchi
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Japan
| | - Shinichi Takano
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Japan
| | - Tetsuo Kondo
- Department of Pathology, Faculty of Medicine, University of Yamanashi, Japan
| | - Keita Kirito
- Department of Hematology and Oncology, University of Yamanashi, Japan
| | - Nobuyuki Enomoto
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Japan
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26
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Yoshida K, Nishimoto S, Yamaguchi T. Structural analysis of hydrazinium trifluoroacetate aqueous solution by X-ray diffraction and empirical potential structure refinement modeling in the temperature range of 25 to −125 °C. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Yamasaki K, Yanagi O, Sunada Y, Hatta K, Shigesada R, Sumino M, Yamaguchi T, Islam MA, Tamura N, Okuno H, Namba S. Discharge characteristics of steady-state high-density plasma source based on cascade arc discharge with hollow cathode. Rev Sci Instrum 2022; 93:053502. [PMID: 35649751 DOI: 10.1063/5.0076388] [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: 10/24/2021] [Accepted: 04/18/2022] [Indexed: 06/15/2023]
Abstract
We developed a steady-state high-density plasma source by applying a hollow cathode to a cascade arc discharge device. The hollow cathode is made of a thermionic material (LaB6) to facilitate plasma production inside it. The cascade arc discharge device with the hollow cathode produced a stationary plasma with an electron density of about 1016 cm-3. It was found that the plasma source produces a strong pressure gradient between the gas feed and the vacuum chamber. The plasma source separated the atmospheric pressure (100 kPa) and a vacuum (100 Pa) when the discharge was performed with an argon gas flow rate of 5.0 l/min and a discharge current of 40 A. An analysis of the pressure gradient along the plasma source showed that the pressure difference between the gas feed and the vacuum chamber can be well described by the Hagen-Poiseuille flow equation, indicating that the viscosity of the neutral gas is the dominant factor for producing this pressure gradient. A potential profile analysis suggested that the plasma was mainly heated within cylindrical channels whose inner diameter was 3 mm. This feature and the results of the pressure ratio analysis indicated that the temperature, and, thus, viscosity, of the neutral gas increased with the increasing number of intermediate electrodes. The discharge characteristics and shape of the hollow cathode are suitable for plasma window applications.
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Affiliation(s)
- K Yamasaki
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan
| | - O Yanagi
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan
| | - Y Sunada
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan
| | - K Hatta
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan
| | - R Shigesada
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan
| | - M Sumino
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan
| | - T Yamaguchi
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan
| | - Md Anwarul Islam
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan
| | - N Tamura
- Deptartment of Helical Plasma Research, National Institute for Fusion Science, 322-6 Oroshi-cyo, Toki, Gifu 509-5292, Japan
| | - H Okuno
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - S Namba
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan
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28
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Li HF, Naimi S, Sprouse TM, Mumpower MR, Abe Y, Yamaguchi Y, Nagae D, Suzaki F, Wakasugi M, Arakawa H, Dou WB, Hamakawa D, Hosoi S, Inada Y, Kajiki D, Kobayashi T, Sakaue M, Yokoda Y, Yamaguchi T, Kagesawa R, Kamioka D, Moriguchi T, Mukai M, Ozawa A, Ota S, Kitamura N, Masuoka S, Michimasa S, Baba H, Fukuda N, Shimizu Y, Suzuki H, Takeda H, Ahn DS, Wang M, Fu CY, Wang Q, Suzuki S, Ge Z, Litvinov YA, Lorusso G, Walker PM, Podolyak Z, Uesaka T. First Application of Mass Measurements with the Rare-RI Ring Reveals the Solar r-Process Abundance Trend at A=122 and A=123. Phys Rev Lett 2022; 128:152701. [PMID: 35499908 DOI: 10.1103/physrevlett.128.152701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/31/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
The Rare-RI Ring (R3) is a recently commissioned cyclotronlike storage ring mass spectrometer dedicated to mass measurements of exotic nuclei far from stability at Radioactive Isotope Beam Factory (RIBF) in RIKEN. The first application of mass measurement using the R3 mass spectrometer at RIBF is reported. Rare isotopes produced at RIBF-^{127}Sn, ^{126}In, ^{125}Cd, ^{124}Ag, ^{123}Pd-were injected in R3. Masses of ^{126}In, ^{125}Cd, and ^{123}Pd were measured whereby the mass uncertainty of ^{123}Pd was improved. This is the first reported measurement with a new storage ring mass spectrometry technique realized at a heavy-ion cyclotron and employing individual injection of the preidentified rare nuclei. The latter is essential for the future mass measurements of the rarest isotopes produced at RIBF. The impact of the new ^{123}Pd result on the solar r-process abundances in a neutron star merger event is investigated by performing reaction network calculations of 20 trajectories with varying electron fraction Y_{e}. It is found that the neutron capture cross section on ^{123}Pd increases by a factor of 2.2 and β-delayed neutron emission probability, P_{1 n}, of ^{123}Rh increases by 14%. The neutron capture cross section on ^{122}Pd decreases by a factor of 2.6 leading to pileup of material at A=122, thus reproducing the trend of the solar r-process abundances. The trend of the two-neutron separation energies (S_{2n}) was investigated for the Pd isotopic chain. The new mass measurement with improved uncertainty excludes large changes of the S_{2n} value at N=77. Such large increase of the S_{2n} values before N=82 was proposed as an alternative to the quenching of the N=82 shell gap to reproduce r-process abundances in the mass region of A=112-124.
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Affiliation(s)
- H F Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Lanzhou University, Lanzhou 730000, People's Republic of China
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - S Naimi
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - T M Sprouse
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M R Mumpower
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Y Abe
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - Y Yamaguchi
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - D Nagae
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - F Suzaki
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - M Wakasugi
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - H Arakawa
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - W B Dou
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - D Hamakawa
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - S Hosoi
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - Y Inada
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - D Kajiki
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - T Kobayashi
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - M Sakaue
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - Y Yokoda
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - T Yamaguchi
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - R Kagesawa
- Institute of Physics, University of Tsukuba, Ibaraki 305-8571, Japan
| | - D Kamioka
- Institute of Physics, University of Tsukuba, Ibaraki 305-8571, Japan
| | - T Moriguchi
- Institute of Physics, University of Tsukuba, Ibaraki 305-8571, Japan
| | - M Mukai
- Institute of Physics, University of Tsukuba, Ibaraki 305-8571, Japan
| | - A Ozawa
- Institute of Physics, University of Tsukuba, Ibaraki 305-8571, Japan
| | - S Ota
- Center for Nuclear Study, University of Tokyo, Wako, Saitama 351-0198, Japan
| | - N Kitamura
- Center for Nuclear Study, University of Tokyo, Wako, Saitama 351-0198, Japan
| | - S Masuoka
- Center for Nuclear Study, University of Tokyo, Wako, Saitama 351-0198, Japan
| | - S Michimasa
- Center for Nuclear Study, University of Tokyo, Wako, Saitama 351-0198, Japan
| | - H Baba
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - N Fukuda
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - Y Shimizu
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - H Takeda
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - D S Ahn
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - M Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - C Y Fu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Q Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - S Suzuki
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Z Ge
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Yu A Litvinov
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
| | - G Lorusso
- National Physical Laboratory, Teddington, TW11 0LW, United Kingdom
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - P M Walker
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Zs Podolyak
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - T Uesaka
- Riken Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
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Wadhwa M, Kang HN, Thorpe R, Knezevic I, Aprea P, Bielsky MC, Ekman N, Heim HK, Joung J, Kurki P, Lacana E, Njue C, Nkansah E, Savkina M, Thorpe R, Yamaguchi T, Wadhwa M, Wang J, Weise M, Wolff-Holz E, Allam M, Bahaa H, Sayed M, Al-Oballi A, Alshahrani A, Baek D, Kim J, Chua H, Gangakhedkar J, Jagtap MP, Lyaskovsky T, Okudaira S, Ondee W, Sotomayor P, Ricra JS, Uviase J, Ahmed F, Rajendran Y, Defendi HT, Cho SO, Qu A, Acha V, Gencoglu M, Ho K, Baldrighi M, Schiestl M, Watson K, Spitzer E, Chong S, Fukushima A, Kang HN, Knezevic I, Pante G, Simao M. WHO informal consultation on revision of guidelines on evaluation of similar biotherapeutic products, virtual meeting, 30 June – 2 July 2021. Biologicals 2022; 76:1-9. [PMID: 35466023 PMCID: PMC9109723 DOI: 10.1016/j.biologicals.2022.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/28/2022] [Accepted: 03/29/2022] [Indexed: 11/26/2022] Open
Abstract
The WHO informal consultation was held to promote the revision of WHO guidelines on evaluation of similar biotherapeutic products (SBPs) adopted by the Expert Committee on Biological Standardization (ECBS) in 2009. It was agreed in the past consultations that the evaluation principles in the guidelines are still valid, but a review was recommended to provide more clarity and case-by-case flexibility. The opportunity was therefore taken to review the experience and identify areas where the current guidance could be more permissive without compromising its basic principles, and where additional explanation could be provided regarding the possibility of reducing the amount of data needed for regulatory approval. The meeting participants applauded the leading role taken by the WHO in providing a much-needed streamlined approach for development and evaluation of SBPs which will provide efficient and cost-effective product development and increase patient access to treatments. It was recognized that the principles as currently described in the draft WHO guidelines are based on sound science and experience gained over the last fifteen years of biosimilar approvals. However, since these guidelines when finalised will constitute the global standard for biosimilar evaluation and assist national regulatory authorities in establishing revised guidance and regulatory practice in this complex area, it was felt that further revision and clarity on certain perspectives in specific areas was necessary to dispel uncertainties arising in the current revised version. This report describes the principles in the draft guidelines, including topics discussed and consensus reached. WHO guidelines serve as a basis for the development of national regulatory framework for biosimilars. Revision of guidelines is to provide more flexibility and clarification on data required for regulatory approval. Revised guidelines would contribute to improving consistency on regulatory decision and patient access to treatments.
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Yamaguchi T, Shimizu K. Subungual hemorrhage as a sign of infective endocarditis. QJM 2022; 115:179-180. [PMID: 35137211 DOI: 10.1093/qjmed/hcac034] [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] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Yamaguchi
- Primary Care and Advanced Triage Section, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka, 534-0021, Japan
| | - K Shimizu
- Primary Care and Advanced Triage Section, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka, 534-0021, Japan
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Zhang W, Yamaguchi T, Fang C, Yoshida K, Zhou Y, Zhu F, Machida S, Hattori T, Li W. Structure of an aqueous RbCl solution in the gigapascal pressure range by neutron diffraction combined with empirical potential structure refinement modeling. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fujihara T, Suda K, Matsuda Y, Yamaguchi T. Copper-Catalyzed Regioselective Sila-acylation and Sila-imination of Allenes Using Esters and Nitriles. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1648-7154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe sila-acylation of allenes is performed in the presence of a copper catalyst using PhMe2Si-B(pin) and esters as the silyl and acyl sources, respectively. β-Silyl-β,γ-unsaturated ketones are obtained regioselectively in good to high yields. The sila-imination of allenes is also achieved using nitriles as electrophiles. Exposure of the reaction mixture to air results in the production of cyclic silyl peroxides.
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Tatsumi A, Maekawa S, Osawa L, Katoh R, Komiyama Y, Nakakuki N, Takada H, Matsuda S, Muraoka M, Suzuki Y, Sato M, Takahashi E, Miura M, Amemiya F, Takano S, Fukasawa M, Yamaguchi T, Nakayama Y, Inoue T, Okada H, Araki T, Onishi H, Enomoto N. Spontaneous portosystemic shunt diameter predicts liver function after balloon‐occluded retrograde transvenous obliteration. JGH Open 2022; 6:139-147. [PMID: 35155824 PMCID: PMC8829100 DOI: 10.1002/jgh3.12712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/13/2021] [Accepted: 12/21/2021] [Indexed: 12/14/2022]
Abstract
Background and Aim Recently, balloon‐occluded retrograde transvenous obliteration (BRTO), performed for spontaneous portosystemic shunts (SPSS), has been receiving attention as a measure to improve liver function in cirrhotic patients with portal hypertension. However, it is unclear whether SPSS diameter is associated with changes in hepatic venous pressure gradient (HVPG) and liver function after BRTO. Methods In 34 cirrhotic patients receiving BRTO for hepatic encephalopathy/gastric varices, the association of SPSS diameter with liver function at baseline and 6 months after BRTO and the accompanying changes in HVPG were investigated. Results Patients had Child–Pugh (CP) scores of A/B/C (7/19/8), SPSS diameters of ≤10 mm/11–20 mm/<20 mm (8/21/5), and an average observation period of 3.2 (0.3–8.5) years. SPSS diameter was significantly associated with male sex, alcohol use, and values of albumin, prothrombin time (PT%), and NH3 at baseline. Moreover, the SPSS diameter was significantly correlated with the changes in HVPG observed upon BRTO (r = 0.55, P = 0.005), and a large shunt diameter was significantly associated with a greater increase in HVPG. At 6 months, significant improvements in albumin, PT%, bilirubin, and NH3 were observed overall, but the improvement was marked in those with larger shunt diameters if they had CP A/B. Conclusion SPSS diameter was strongly associated with liver function at baseline and after BRTO and also with changes in HVPG, indicating that SPSS diameter is an important predictor of BRTO outcome.
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Affiliation(s)
- Akihisa Tatsumi
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Shinya Maekawa
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Leona Osawa
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Ryo Katoh
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Yasuyuki Komiyama
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Natsuko Nakakuki
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Hitomi Takada
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Shuya Matsuda
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Masaru Muraoka
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Yuichiro Suzuki
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Mitsuaki Sato
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Ei Takahashi
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Mika Miura
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Fumitake Amemiya
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Shinichi Takano
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Mitsuharu Fukasawa
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Tatsuya Yamaguchi
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Yasuhiro Nakayama
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Taisuke Inoue
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Hiroki Okada
- Department of Radiology, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Takuji Araki
- Department of Radiology, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Hiroshi Onishi
- Department of Radiology, Faculty of Medicine University of Yamanashi Yamanashi Japan
| | - Nobuyuki Enomoto
- First Department of Internal Medicine, Faculty of Medicine University of Yamanashi Yamanashi Japan
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Takagi S, Hori H, Yamaguchi T, Ochi S, Nishida M, Maruo T, Takahashi H. Motor Functional Characteristics in Attention-Deficit/Hyperactivity Disorder and Autism Spectrum Disorders: A Systematic Review. Neuropsychiatr Dis Treat 2022; 18:1679-1695. [PMID: 35971415 PMCID: PMC9375548 DOI: 10.2147/ndt.s369845] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 07/26/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The development of attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorders (ASDs) has various influences on physical abilities. Identification of specific physical abilities of people with ADHD/ASDs as biomarkers for diagnosing these conditions is necessary. Therefore, in the present review, we aimed firstly to extract the difference in physical abilities of people with ADHD or ASDs compared to those of normal individuals. Secondly, we aimed to extract the specific physical ability characteristics for identifying potential diagnostic biomarkers in people with ADHD/ASDs. METHODS A systematic literature review was performed. The databases were searched for relevant articles on motor function deficits and characteristics of ADHD or ASD. RESULTS Forty-one cross-sectional studies and three randomized controlled trials were identified, comprising 33 studies of ADHD, 10 studies of ASDs, and 1 study of both ADHD and ASDs. The quality of studies varied. Three types of physical activities/exercises were identified, including coordinated movement, resistance-type sports, and aerobic-type sports. People with ADHD/ASDs generally exhibited poorer physical abilities for all types of activities, possibly because of low levels of physical activity. Specifically, we found temporal discoordination of movement in ADHD and integration or synchronization of separate movements in ASDs. CONCLUSION Specific deficits in physical ability may be attributed to ADHD/ASDs. However, there is not enough research on the physical abilities of people with ADHD and ASDs to clarify the specific deficits. Investigation of specific motor functions that characterize ADHD/ASDs should be facilitated.
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Affiliation(s)
- Shunsuke Takagi
- Department of Psychiatry and Behavioral Neurosciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
| | - Hikaru Hori
- Department of Psychiatry, School of Medicine, Fukuoka University, Fukuoka, 814-0180, Japan
| | - Tatsuya Yamaguchi
- Institute for Integrated Sports Medicine, School of Medicine, Keio University, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Neuropsychiatry, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shinichiro Ochi
- Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Shitsukawa, Ehime, 791-0295, Japan
| | - Masaki Nishida
- Faculty of Sport Science, Waseda University Tokorozawa, Saitama, 359-1192, Japan
| | - Takashi Maruo
- Department of Psychiatry and Behavioral Neurosciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
| | - Hidehiko Takahashi
- Department of Psychiatry and Behavioral Neurosciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
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Takano S, Fukasawa M, Shindo H, Takahashi E, Fukasawa Y, Kawakami S, Hayakawa H, Kuratomi N, Kadokura M, Yamaguchi T, Inoue T, Maekawa S, Enomoto N. Next-generation sequencing of endoscopically obtained tissues from patients with all stages of pancreatic cancer. Cancer Sci 2021; 113:1069-1077. [PMID: 34962016 PMCID: PMC8898708 DOI: 10.1111/cas.15249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/11/2021] [Accepted: 12/12/2021] [Indexed: 11/30/2022] Open
Abstract
Routinely available clinical samples of all stages of pancreatic cancer are used in the present study to elucidate its molecular mechanisms and identify novel therapeutic targets. We evaluated the use of next‐generation sequencing (NGS) of endoscopically obtained pancreatic cancer tissues. We enrolled 147 patients who underwent endoscopic ultrasound‐guided fine‐needle aspiration or endoscopic biopsy. The quantity and quality of the extracted DNA was assessed. Tissue samples were used for NGS of 78 cancer‐related genes, from which gene alterations and microsatellite instability (MSI) were extracted. NGS was successful in 141 out of 147 (96%) cases. Gene alterations were detected in 134 out of 141 (91%) samples, among which eight out of 10 samples with a DNA concentration below the detection limit had some type of gene alteration. Targetable genes were detected in 28 (19.9%) cases. MSI and germline mutations in homologous recombination repair associated genes were detected in 5% and 3% of cases, respectively. Cox regression analysis revealed that metastasis (P < .005; hazard ratio [HR], 3.30) was associated with poor prognosis in all pancreatic cancer patients. In addition, fewer than three mutations (P = .03; HR, 2.48) and serum carcinoembryonic antigen levels >5 ng/mL (P < .005; HR, 3.94) were associated with worse prognosis in cases without and with metastasis, respectively. Targeted sequencing of all stages of pancreatic cancer using available samples from real clinical practice could be used to determine the relationship between gene alterations and prognosis to help determine treatment choices.
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Affiliation(s)
- Shinichi Takano
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Mitsuharu Fukasawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Hiroko Shindo
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Ei Takahashi
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Yoshimitsu Fukasawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Satoshi Kawakami
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Hiroshi Hayakawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Natsuhiko Kuratomi
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Makoto Kadokura
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Tatsuya Yamaguchi
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Taisuke Inoue
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Shinya Maekawa
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Nobuyuki Enomoto
- First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
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Yamaguchi T, Yamagami K. Burton's line: a sign of chronic lead poisoning. QJM 2021; 114:752. [PMID: 34264343 DOI: 10.1093/qjmed/hcab192] [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] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Yamaguchi
- Primary Care and Advanced Triage Section, Osaka City General Hospital, 2-13-22 Miyakojima-Hondori, Miyakojima-Ku, Osaka 534-0021, Japan
| | - K Yamagami
- Internal Medicine, Osaka City General Hospital, 2-13-22 Miyakojima-Hondori, Miyakojima-Ku, Osaka 534-0021, Japan
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Hasegawa T, Ueda N, Yamada SI, Kato S, Iwata E, Hayashida S, Kojima Y, Shinohara M, Tojo I, Nakahara H, Yamaguchi T, Kirita T, Kurita H, Shibuya Y, Soutome S, Akashi M. Denosumab-related osteonecrosis of the jaw after tooth extraction and the effects of a short drug holiday in cancer patients: a multicenter retrospective study. Osteoporos Int 2021; 32:2323-2333. [PMID: 33997909 DOI: 10.1007/s00198-021-05995-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 02/02/2021] [Accepted: 05/05/2021] [Indexed: 12/15/2022]
Abstract
UNLABELLED Pre-existing inflammation, corticosteroid therapy, periapical periodontitis, longer duration of denosumab therapy, and female sex were significantly associated with an increased risk of denosumab-related osteonecrosis of the jaw after tooth extraction in patients with cancer on oncologic doses of denosumab. A short drug holiday did not protect against this complication. INTRODUCTION This study retrospectively investigated the relationship between various risk factors, including brief discontinuation of denosumab, and development of denosumab-related osteonecrosis of the jaw (DRONJ) after tooth extraction in patients with cancer who were receiving oncologic doses of this agent. METHODS Data were collected on demographic characteristics, duration of denosumab therapy, whether or not denosumab was discontinued before tooth extraction (drug holiday), duration of discontinuation, presence of pre-existing inflammation, and whether or not additional surgical procedures were performed. Risk factors for DRONJ after tooth extraction were evaluated by univariate and multivariate analyses. RESULTS A total of 136 dental extractions were performed in 72 patients (31 men, 41 women) with cancer who were receiving oncologic doses of denosumab. Post-extraction DRONJ was diagnosed in 39 teeth (28.7%) in 25 patients. Tooth extraction was significantly associated with development of DRONJ only in patients with pre-existing inflammation (odds ratio [OR] 243.77), those on corticosteroid therapy (OR 73.50), those with periapical periodontitis (OR 14.13), those who had been taking oncologic doses of denosumab for a longer period (OR 4.69), and in women (OR 1.04). There was no significant difference in the occurrence of DRONJ between patients who had a drug holiday before tooth extraction and those who did not. CONCLUSIONS These findings suggest that inflamed teeth should be extracted immediately in patients with cancer who are receiving oncologic doses of denosumab. Drug holidays have no significant impact on the risk of DRONJ.
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Affiliation(s)
- T Hasegawa
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - N Ueda
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - S I Yamada
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Kato
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - E Iwata
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of Oral and Maxillofacial Surgery, Kakogawa Central City Hospital, Kakogawa, Japan
| | - S Hayashida
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Kojima
- Department of Dentistry and Oral Surgery, Kansai Medical University, Hirakata, Japan
| | - M Shinohara
- Department of Oral and Maxillofacial Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - I Tojo
- Department of Oral and Maxillofacial Surgery, Wakayama Medical University, Wakayama, Japan
| | - H Nakahara
- Department of Oral and Maxillofacial Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Yamaguchi
- Department of Preventive Dentistry, Research Field in Dentistry, Medical and Dental Sciences Area, Kagoshima University, Kagoshima, Japan
| | - T Kirita
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - H Kurita
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Shibuya
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - S Soutome
- Department of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - M Akashi
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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Muraoka M, Maekawa S, Katoh R, Komiyama Y, Nakakuki N, Takada H, Matsuda S, Suzuki Y, Sato M, Tatsumi A, Miura M, Amemiya F, Shindo H, Takano S, Fukasawa M, Yamauchi K, Yamaguchi T, Nakayama Y, Inoue T, Enomoto N. Usefulness of Cell-Free Human Telomerase Reverse Transcriptase Mutant DNA Quantification in Blood for Predicting Hepatocellular Carcinoma Treatment Efficacy. Hepatol Commun 2021; 5:1927-1938. [PMID: 34558819 PMCID: PMC8557313 DOI: 10.1002/hep4.1762] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/28/2021] [Accepted: 05/16/2021] [Indexed: 12/26/2022] Open
Abstract
Although the usefulness of liquid biopsy as a biomarker in the treatment of hepatocellular carcinoma (HCC) has been suggested, its usefulness in transcatheter arterial chemoembolization (TACE) or tyrosine kinase inhibitor (TKI) therapies has not been reported in detail. In this study, we investigated the clinical value of a cell-free (cf)DNA quantification system targeting the human telomerase reverse transcriptase (hTERT) promoter mutation in advanced HCC treatment. Plasma from 67 patients with advanced HCC, treated with TACE and TKI, was used for extraction of cfDNA. We defined cfDNA with the hTERT promoter C228T mutation as circulating mutant DNA (mutant DNA) and without the mutation as circulating wild-type DNA (wild-type DNA). We analyzed the changes in mutant and wild-type DNA levels during HCC treatment and examined the relationship between changes in the cfDNA level and the clinical course. Mutant DNA was detected in 73.1% (49/67) of the patients during HCC treatment. In univariate analysis, factors associated with detection of mutant DNA before treatment were the intrahepatic maximum tumor diameter (P = 0.015) and protein induced by vitamin K absence (PIVKAII) (P = 0.006). The degree of mutant DNA change after TACE was significantly correlated with tumor volume (P < 0.001), reflecting the treated tumor volume. Responders with peak cfDNA levels within 1 week of TKI initiation had significantly better progression-free survival than nonresponders (P = 0.004). Conclusion: Changes in blood hTERT promoter mutant DNA levels during TACE or TKI treatment indirectly reflect the amount of HCCs and are useful for predicting long-term treatment responses.
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Affiliation(s)
- Masaru Muraoka
- First Department of Internal MedicineFaculty of MedicineUniversity of YamanashiChuoJapan
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Matsuo T, Yamaguchi T, Hirohata T, Nakamoto M, Yamamoto Y, Maeda Y, Kawachi A. Synthesis of Alkoxy‐Substituted Oligosilanes using [
β
‐(Alkoxy)disilanyl]lithium. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Takumi Matsuo
- Major in Applied Chemistry Graduate School of Science and Engineering Hosei University 3-7-2 Kajino-cho Koganei Tokyo 184-8584 Japan
| | - Tatsuya Yamaguchi
- Major in Applied Chemistry Graduate School of Science and Engineering Hosei University 3-7-2 Kajino-cho Koganei Tokyo 184-8584 Japan
| | - Tomoki Hirohata
- Department of Chemical Science and Technology Faculty of Bioscience and Applied Chemistry Hosei University 3-7-2 Kajino-cho Koganei Tokyo 184-8584 Japan
| | - Masaaki Nakamoto
- Basic Chemistry Program Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi Hiroshima 739-8526 Japan
| | - Yohsuke Yamamoto
- Basic Chemistry Program Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi Hiroshima 739-8526 Japan
| | - Yutaka Maeda
- Department of Chemistry Tokyo Gakugei University 4-1-1 Nukuikita-machi Koganei Tokyo 184-8501 Japan
| | - Atsushi Kawachi
- Department of Chemical Science and Technology Faculty of Bioscience and Applied Chemistry Hosei University 3-7-2 Kajino-cho Koganei Tokyo 184-8584 Japan
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Yamaguchi T, Nakai M, Yano T, Matsuyama M, Miyamoto Y, Kodama T, Ogino H. Population-based incidence and outcomes of acute aortic dissection in Japan. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The population-based incidence and outcomes of acute aortic dissection (AAD) are still unknown because some patients are already dead on arrival at the hospital, and the accurate diagnosis of AAD is difficult due to the low autopsy rate for patients with cardiopulmonary arrest outside of the hospital. We performed a population-based review of all patients with AAD in a well-defined geographical area in the southern part of Japan between 2016 and 2018.
Methods
Data of all patients with AAD at our Hospital, which performs medical care for 120,000 residents, were collected retrospectively. The emergency medical service is dedicated to the transfer of all patients in this area to the MPNH. For all patients who were dead on arrival, the diagnosis of AAD was made by autopsy imaging (AI) using computed tomography. The age-adjusted incidence and mortality per 100,000 population were calculated using the Japanese population distribution model in 2015.
Results
The total incidence of AAD was 79 (type A: 64.5%, n=51). Of those, 60.8% (31/51) of patients with type A and 21.4% (6/28) with type B were dead on arrival and diagnosed by AI. The 30-day mortality rates after the onset of AAD were 74.5% (38/51) in type A and 25.0% (7/28) in type B. Excluding the dead-on-arrival patients, the 30-day mortality rates were 35.0% (7/20) in type A and 4.5% (1/22) in type B. The age-adjusted incidence and mortality of AAD per 100,000 inhabitants were 17.3 (type A: 11.3, type B: 6.0) and 9.6 (type A: 8.4, type B: 1.2), respectively. Both values were significantly higher in men than in women.
Conclusions
The population-based survey of emergency medical care for AAD showed that the age-adjusted incidence of AAD was two-fold higher than in previous reports, and the actual mortality rates after AAD onset were markedly higher due to the high incidence of dead-on-arrival.
Funding Acknowledgement
Type of funding sources: None. Representative CT images of type A AAD
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Affiliation(s)
| | - M Nakai
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - T Yano
- Miyazaki Prefectural Nobeoka hospital, Miyazaki, Japan
| | - M Matsuyama
- Miyazaki Prefectural Nobeoka hospital, Miyazaki, Japan
| | - Y Miyamoto
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - T Kodama
- Toranomon Hospital, Tokyo, Japan
| | - H Ogino
- Tokyo Medical University Hospital, Tokyo, Japan
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Akazawa Y, Yoshikawa A, Hashimoto K, Kanazu M, Yano Y, Yamaguchi T, Mori M. P10.09 Efficacy and Toxicity of EGFR-TKI in Frail NSCLC with EGFR Mutation: A Retrospective Analysis in a Single Institution. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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42
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Matsuzawa R, Morise M, Ito K, Hataji O, Takahashi K, Hara T, Goto Y, Imaizumi K, Itani H, Yamaguchi T, Zenke Y, Oki M, Kogure Y, Hashimoto N. P47.14 Study Design of SCORPION: Multi-Center, Phase II Study Following Platinum-Based Chemotherapy Plus ICIs in Patients with NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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43
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Shimomura K, Minatogawa H, Mashiko T, Arioka H, Iihara H, Sugawara M, Hida N, Akiyama K, Nawata S, Tsuboya A, Mishima K, Izawa N, Miyaji T, Honda K, Inada Y, Ohno Y, Katada C, Morita H, Yamaguchi T, Nakajima T. LBA63 Placebo-controlled, double-blinded phase Ⅲ study comparing dexamethasone on day 1 with dexamethasone on days 1 to 4, with combined neurokinin-1 receptor antagonist, palonosetron, and olanzapine in patients receiving cisplatin-containing highly emetogenic chemotherapy: SPARED trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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44
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Toyozawa R, Itahashi K, Goto Y, Fujiwara Y, Okuma Y, Kurata T, Yokoyama T, Nokihara H, Yokoi T, Yamaguchi T, Shiraishi Y, Takeda M, Tokito T, Nakamura A, Hosomi Y, Ohe Y. 1292P Two single-arm, multicenter phase-II trials of PD-1 inhibitors in patients with pulmonary sarcomatoid carcinoma (NCCH1603/NCCH1703). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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45
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Nakamura I, Yamaguchi T, Miura Y, Watanabe H. Transmission of extended-spectrum β-lactamase-producing Klebsiella pneumoniae associated with sinks in a surgical hospital ward, confirmed by single-nucleotide polymorphism analysis. J Hosp Infect 2021; 118:1-6. [PMID: 34437982 DOI: 10.1016/j.jhin.2021.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/19/2021] [Accepted: 08/11/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Although sink- and drain-related carbapenemase-producing Enterobacterales transmission has been reported previously, there is limited research regarding the transmission of extended-spectrum β-lactamase (ESBL)-producing Enterobacterales. AIM To investigate nosocomial ESBL-producing Klebsiella pneumoniae transmission via patient sinks and drains on a general surgical hospital ward. METHODS ESBL-producing K. pneumoniae transmission on a surgical ward at Tokyo Medical University Hospital (built in July 2019) from July 2019 to February 2020 was investigated. Information regarding the relatedness of the isolates from the patients and the environment was provided by whole-genome sequence analysis. FINDINGS Four clinical isolates of K. pneumoniae (TUM19831, TUM19832, TUM19833 and TUM19834) were detected during the study. TUM19831 was identified prior to moving to the new building and was detected again in the new building. TUM19832 and TUM19833 were detected in July 2019, and TUM19834 was detected in December 2019. TUM19835 and TUM19836 were detected in two different sinks and drains in July 2019, while a further two sinks and drains tested positive for TUM19837 and TUM19838 in February 2020. Whole-genome analysis revealed that all strains were ST307 and CTXM15 sequence types, and the isolates were indistinguishable by genetic analysis. Due to inadequate removal of the slime biofilm coating, the sinks needed to be cleaned again before TUM19837 and TUM19838 could be detected. CONCLUSIONS This study demonstrated the transmission of indistinguishable ESBL-producing K. pneumoniae strains from sinks and drains in the patient area of a general surgical hospital ward. There is a need to recognize this risk and develop optimal management strategies for plumbing systems in hospitals and other healthcare settings.
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Affiliation(s)
- I Nakamura
- Department of Infection Prevention and Control, Tokyo Medical University Hospital, Tokyo, Japan
| | - T Yamaguchi
- Department of Microbiology and Infectious Diseases, Faculty of Medicine, Toho University, Tokyo, Japan.
| | - Y Miura
- Department of Infection Prevention and Control, Tokyo Medical University Hospital, Tokyo, Japan
| | - H Watanabe
- Department of Infection Prevention and Control, Tokyo Medical University Hospital, Tokyo, Japan
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Yanagihara Y, Tanaka A, Nagayoshi M, Yamaguchi T, Tanaka I, Ohno M, Itakura A. P–611 Innovative controlled ovarian stimulation (COS) for polycystic ovary syndrome (PCOS) produces high-quality oocytes and no ovarian hyper stimulation syndrome (OHSS). Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
How can we find an ovarian stimulation method that does not cause hyper stimulation syndrome but can produce a high pregnancy rate at one cycle?
Summary answer
This newly developed method for PCOS has a higher accumulative clinical outcome for one trial and no OHSS.
What is known already
Almost all conventional treatments for PCOS have managed to avoid OHSS by reducing the number of growing follicles, which are associated with high Estradiol levels and stimulate the production of vessel endothelial growth hormone (VEGF), leading to increased vessel permeability. Low dose FSH administration, In vitro maturation (IVM), Ovarian Drilling and Coasting have been performed to achieve this. However, their actual clinical outcome is still unsatisfactory.
Study design, size, duration
Evaluation of the efficiency of this method was conducted retrospectively at St. Mother Clinic. The embryonic development and the clinical outcome were studied for 34 PCOS patients during the period between November 2018 and December 2019.
Participants/materials, setting, methods
We started injections of FSH (150iu/ml), then we did ultrasound follicle monitoring. GnRH antagonist shots were started when the leading follicle reached 18mm and continued until the largest follicle was 22–24mm and the E2 value was over 4000pg/ml. Letrozole (2.5mg) and leuprorelin acetate (1.88mg) was injected as trigger. Two tablets each of Letrozole, Cabergoline and GnRH antagonist were given for 5 consecutive days after the oocyte retrieval. All embryos were cryopreserved.
Main results and the role of chance
Number of patients and cycles were 34 and 59. Average number of cryopreserved blastocysts was 6.12 (1–16). The frequencies of OHSS (mild, moderate, severe) were 29.4% (10/34), 0% (0/34), 0% (0/34). Average days between oocyte collection and withdrawal hemorrhage was 5.44(5–7). Cryopreservation rate was 100.0% (34/34). Clinical pregnancy rate and miscarriage rate was 42.3% (25/59) and 16.0% (4/25). The cumulative pregnancy rate was 73.7% (25/34). The four remaining unsuccessful cases still have 10,6,3 and 7 frozen embryos. So, there is a high possibility that they become successful, that would bring the cumulative pregnancy rate up to 82.3% (28/34).
Limitations, reasons for caution
This COS for PCOS seems promising, however it is premature to conclude that this method is established. This method requires caution monitoring for hormone level, follicle size and number and coagulant function. It also accompanied with the risk of ovarian hemorrhage on aspiration of a great number of oocytes.
Wider implications of the findings: This COS seems viable for PCOS cases. It could control the cohort of antral follicles with different doses of Letrozole to find the optimal COH method and it could become the first option for COS of PCOS.
Trial registration number
N/A
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Affiliation(s)
- Y Yanagihara
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - A Tanaka
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - M Nagayoshi
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - T Yamaguchi
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - I Tanaka
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - M Ohno
- Juntendo University School of Medicine, Department of Obstetrics and Gynecology, Bunkyo-ku, Japan
| | - A Itakura
- Juntendo University School of Medicine, Department of Obstetrics and Gynecology, Bunkyo-ku, Japan
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Tanaka A, Yanagihara Y, Nagayoshi M, Yamaguchi T, Tanaka I, Itakura A. P–023 Innovative ultra-rapid vitrification method for five or fewer testicular spermatozoa from non-obstructive azoospermic men after microsurgical testicular sperm extraction (Micro-TESE). Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
What technique can be used to successfully cryopreserve five or fewer testicular spermatozoa from non-obstructive azoospermic men?
Summary answer
This method for cryopreserving five or fewer spermatozoa from non-obstructive azoospermic men showed a recovery rate above 90% and a survival rate of about 70%.
What is known already
Clinical outcomes of ICSI when using only five or fewer testicular spermatozoa after cryopreservation have been unsuccessful and are considered to be inferior to those using testicular fresh spermatozoa from Micro-TESE. A possible cause of these poor results has been the lack of a successful freezing technique. In these cases, repeated Micro-TESE and simultaneous oocyte pick up has been the only available treatment.
Study design, size, duration
Evaluation of the efficiency of cryopreservation by modified permeable cryoprotectant-free vitrification method (HTF supplemented with 0.1M sucrose and 10% SPS) for five or fewer testicular spermatozoa from 113 non-obstructive azoospermic men using Micro-TESE was conducted retrospectively at St. Mother Clinic between 2011 and 2018.
Participants/materials, setting, methods
This study included 113 non-obstructive azoospermic men. Each motile spermatozoon was carefully aspirated tail first into the pipette, put into a 2-μl microdroplet media of the vitrification medium near the tip of the Cryotop (Kitazato Corporation, Tokyo, Japan) submerged in liquid nitrogen vapor for 2 min and then immediately plunged in liquid nitrogen. The vitrified spermatozoa were warmed by dipping them into a droplet media. Successfully recovered motile sperm were selected and used for ICSI.
Main results and the role of chance
Number of patients, transfer cycles and collected sperms were 113, 192 and 560. Mean age of patients and their wives were 32.0±3.7y and 28.4±5.8y. Clinical pregnancy rate, miscarriage rate, live birth rate and number of live offspring were 24.0% (46/192), 19.6% (9/46), 19.3% (37/192) and 37 (Male: Female = 17: 20). Sperm recovery rate and survival rate were 90.3% (506/560) and 70.4% (356/506). Fertilization rate and mean number of transferred embryos were 51.6% (99/192) and 1.73 (1–2). Mean gestational weeks and mean body weight at birth were 39.23±5.27w and 2852.31±314.28g. No congenital anomalies were observed in any of the babies.
Limitations, reasons for caution
The maximum number of spermatozoa to which this method can be applied successfully is about 10. When the number of aspirated spermatozoa is over 10, some of them change direction and reach the mineral oil, and once this happens, they cannot be expelled out of the pipette.
Wider implications of the findings: This technique is very useful for the cryopreservation of very small numbers of testicular spermatozoa (fewer than 10) in order to avoid or reduce Micro-TESE interventions.
Trial registration number
N/A
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Affiliation(s)
- A Tanaka
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - Y Yanagihara
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - M Nagayoshi
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - T Yamaguchi
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - I Tanaka
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - A Itakura
- Juntendo University School of Medicine, Department of Obstetrics and Gynecology, Bunkyo-ku, Japan
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Kumagai K, Yagi S, Yamaguchi T, Nagashima K, Nomura T, Watanabe M, Makuuchi R, Kawakami K, Otsuka S, Matsushima T, Kadowaki S, Haruta S, Cho H, Yamada T, Kakihara N, Imai Y, Fukunaga H, Saeki Y, Kanaji S, Boku N, Goto M. P-83 The efficacy of chemotherapy for gastric cancer with early recurrence during or after adjuvant S-1. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Yamaguchi T, Tabuchi H, Ito D, Saito N, Yamagata B, Konishi M, Takebayashi M, Ikeda M, Mimura M. Effect of different parietal hypoperfusion on neuropsychological characteristics in mild cognitive impairment. Psychogeriatrics 2021; 21:618-626. [PMID: 34056807 DOI: 10.1111/psyg.12723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 04/15/2021] [Accepted: 05/09/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND In early-stage amnestic mild cognitive impairment (aMCI), differences in the neuropsychological characteristics of each individual are subtle. We investigated differences in neuropsychological performance between aMCI patients with and without hypoperfusion in the medial parietal regions (MP). We further compared patients with hypoperfusion in the left and right lateral parietal regions. METHODS We examined 165 aMCI patients (mean age: 76.8 ± 5.5 years; 87 women) who had undergone neuropsychological measurement and single-photon emission computed tomography. We classified participants into two subgroups with and without hypoperfusion: MP hypoperfusion (+) and MP hypoperfusion (-); classification was based on Z-scores (calculated by three-dimensional stereotactic surface projection technique) of three regions of interest in the parietal lobes (i.e. MP regions including posterior cingulate cortex and precuneus and left and right inferior parietal lobules (lateral parietal regions)). The MP hypoperfusion (-) group was classified into left lateral parietal hypoperfusion (+) and right lateral parietal hypoperfusion (+) subgroups. We performed either univariate or multivariate ancova to compare neuropsychological scores for continuous variables between groups and examined dichotomous variables using χ2 tests. RESULTS In the overall aMCI sample, scores on logical memory delayed recall in the MP hypoperfusion (+) group were significantly lower than those in the MP hypoperfusion (-) group. Total scores on Rey-Osterrieth Complex Figure Test delayed recall were also marginally lower in the MP hypoperfusion (+) group than in the MP hypoperfusion (-) group. Comparisons of neuropsychological test scores between the left and right lateral parietal hypoperfusion (+) groups revealed no significant differences. CONCLUSIONS The present findings suggest that MP hypoperfusion (+) is associated with more robust memory deficits than MP hypoperfusion (-). Combining neuropsychological tests and single-photon emission computed tomography findings may be useful for early detection of cognitive decline in aMCI.
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Affiliation(s)
- Tatsuya Yamaguchi
- Department of Neuropsychiatry, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan.,Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Hajime Tabuchi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Daisuke Ito
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - Naho Saito
- Department of Rehabilitation, Keio University School of Medicine, Tokyo, Japan
| | - Bun Yamagata
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Mika Konishi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Minoru Takebayashi
- Department of Neuropsychiatry, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan.,Department of Neuropsychiatry, Kumamoto University, Faculty of Medical and Pharmaceutical Sciences, Kumamoto, Japan
| | - Manabu Ikeda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Masaru Mimura
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
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Shirasu H, Taniguchi H, Watanabe J, Kotaka M, Yamazaki K, Hirata K, Yokota M, Emi Y, Ikenaga M, Kato K, Akazawa N, Yamaguchi T, Ikeda M, Aleshin A, Kotani D, Mishima S, Yukami H, Oki E, Takemasa I, Kato T, Nakamura Y, Yoshino T. O-11 Monitoring molecular residual disease by circulating tumor DNA in resectable colorectal cancer: Molecular subgroup analyses of a prospective observational study GALAXY in CIRCULATE-Japan. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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