532 results on '"Hiroki Nishikawa"'
Search Results
152. Can Lemborexant for Insomnia Prevent Delirium in High-Risk Patients with Pancreato-Biliary Disease after Endoscopic Procedures under Deep Sedation?
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Takeshi Ogura, Saori Ueno, Atsushi Okuda, Nobu Nishioka, Akira Miyano, Yoshitaro Yamamoto, Kimi Bessho, Mitsuki Tomita, Nobuhiro Hattori, Junichi Nakamura, and Hiroki Nishikawa
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ERCP ,EUS-guided drainage ,lemborexant ,insomnia ,endoscopy ,General Medicine - Abstract
Background and aim: Pancreato-biliary patients who undergo endoscopic procedures have high potential risk of delirium. Although benzodiazepine has traditionally been used to treat insomnia, this drug might increase delirium. Lemborexant may be useful for patients with insomnia, without worsening delirium, although there is no evidence for high-risk patients with pancreato-biliary disease. The aim of this pilot study was to evaluate the safety and efficacy of lemborexant for insomnia and the frequency of delirium after endoscopic procedures under deep sedation in patients with pancreato-biliary disease. Method: This retrospective study included consecutive patients who were administered lemborexant after endoscopic procedures for pancreato-biliary disease between September 2020 and June 2022. The primary outcome of this study was evaluation of the safety and efficacy of lemborexant for insomnia. Frequency of delirium was the secondary outcome. Result: In total, 64 patients who had the complication of insomnia after an endoscopic procedure were included in the study. Risk factors for delirium were advanced age (n = 36, 56.3%), dementia (n = 10, 15.6%), and regular alcohol use (n = 13, 20.3%), as well as the sedatives midazolam and pentazocine that were administered to all patients at the time of the endoscopic procedure. Successful asleep was achieved by 61/64 patients (95.3%). No fall event was observed during the night following the procedure in any patient. However, mild consciousness transformation was observed in one patient. Conclusions: In conclusion, lemborexant use may be effective and safe for use after endoscopic procedures in pancreato-biliary patients, without increasing the risk of delirium.
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- 2022
153. A Prospective Study Regarding the Efficacy and Safety of the BNT162b2 Vaccine in Patients With Solid Malignancies Undergoing Systemic Chemotherapy
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EIKI YAMASAKI, FUKUTARO SHIMAMOTO, HIROKI NISHIKAWA, MASAHIRO GOTO, MITSUHIKO IWAMOTO, KOSEI KIMURA, AKIRA UKIMURA, NAOFUMI OOSAKA, KOHEI TANIGUCHI, FUMIHITO ONO, TETSUJI TERAZAWA, TOSHIFUMI YAMAGUCHI, KEN ASAISHI, TAKAKO IKEGAMI, KAZUHISA UCHIYAMA, SHIRO NAKAMURA, and KAZUHIDE HIGUCHI
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Pharmacology ,Cancer Research ,Vaccines ,Neoplasms ,Humans ,COVID-19 ,Prospective Studies ,Antibodies, Viral ,General Biochemistry, Genetics and Molecular Biology ,BNT162 Vaccine ,Research Article - Abstract
Background/Aim: To prospectively evaluate the efficacy and safety of the BNT162b2 vaccine in solid cancer patients undergoing systemic chemotherapy (n=63). Patients and Methods: COVID-19 anti-spike protein antibody levels were measured before the first BNT162b2 vaccination, just before the second BNT162b2 vaccination, one month after the second BNT162b2 vaccination, and 3 months after the second BNT162b2 vaccination. Anti-spike protein antibody seropositivity was set at ≥0.8 U/ml. Results: Colorectal cancer was the most commonly observed primary disease (36.5%). ECOG-PS 0 was observed in the majority (52.4%) of patients. The overall response rate and the median (range) anti-spike protein antibody levels in the whole cohort at 3 months after the second BNT162b2 vaccination were 98.4% (62/63) and 206 (0.4-3,813) U/ml. None of the patients required postponement or discontinuation of systemic chemotherapy because of an adverse reaction. Conclusion: The BNT162b vaccine in solid cancer patients undergoing systemic chemotherapy is effective and safe.
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- 2022
154. Impact of the COVID-19 pandemic and multiplex polymerase chain reaction test on outpatient antibiotic prescriptions for pediatric respiratory infection
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Daisuke Kitagawa, Taito Kitano, Madoka Furumori, Soma Suzuki, Yui Shintani, Hiroki Nishikawa, Rika Suzuki, Naohiro Yamamoto, Masayuki Onaka, Atsuko Nishiyama, Takehito Kasamatsu, Naoyuki Shiraishi, Yuki Suzuki, Akiyo Nakano, Ryuichi Nakano, Hisakazu Yano, Koichi Maeda, Sayaka Yoshida, and Fumihiko Nakamura
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Multidisciplinary - Abstract
This study aimed to evaluate the impact of the prolonged COVID-19 pandemic on outpatient antibiotic prescriptions for pediatric respiratory infections at an acute care hospital in Japan in order to direct future pediatric outpatient antibiotic stewardship.The impact of the COVID-19 pandemic and FilmArray Respiratory Panel (RP) on outpatient antibiotic prescriptions was assessed from January 2019 to December 2021 using an interrupted time series analysis of children The COVID-19 pandemic was not significantly related to the antibiotic prescription rate, suggesting that it did not impact physicians’ behavior toward antibiotic prescriptions. Replacing rapid antigen tests with the FilmArray RP introduced on December 1, 2020, did not affect the magnitude of the reduction in antibiotic prescription rate for pediatric respiratory infections.
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- 2022
155. Gel-immersion electrohydraulic lithotripsy during digital single-operator cholangioscopy is helpful when bleeding occurs
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Akira Miyano, Takeshi Ogura, Atsushi Okuda, Nobu Nishioka, and Hiroki Nishikawa
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Gastroenterology - Published
- 2022
156. Reduced handgrip strength predicts poorer survival in chronic liver diseases: A large multicenter study in Japan
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Nagisa Hara, Kyoji Moriya, Hiroki Nishikawa, Kazuhiko Koike, Akira Hiramatsu, Keisuke Hino, and Makoto Shiraki
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medicine.medical_specialty ,Alcoholic liver disease ,Hepatology ,Proportional hazards model ,business.industry ,Hazard ratio ,Muscle weakness ,Retrospective cohort study ,medicine.disease ,Gastroenterology ,Infectious Diseases ,Hepatocellular carcinoma ,Internal medicine ,Sarcopenia ,medicine ,medicine.symptom ,business ,human activities - Abstract
AIM Sarcopenia has a high prevalence and can be an adverse predictor in patients with chronic liver diseases (CLDs). We sought to assess the prevalence of sarcopenia and its prognostic significance in patients with CLDs at multiple centers in Japan. METHODS In this retrospective study, we collated the data of 1624 patients with CLDs (976 men). The diagnosis of sarcopenia was determined by the sarcopenia assessment criteria of the Japan Society of Hepatology. Predictors of mortality were identified using univariate and multivariate analyses. RESULTS Muscle weakness and skeletal muscle loss occurred in 33.5% and 29.3% of all subjects, respectively, while sarcopenia occurred in 13.9% of all patients. Patients with sarcopenia had a poorer prognosis among all patients, patients with hepatocellular carcinoma (HCC), and those without HCC by log-rank test. The multivariate Cox proportional hazards model identified female gender (hazard ratio [HR], 0.59; p = 0.03), alcoholic liver disease (HR, 4.25; p
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- 2021
157. Evidence-based clinical practice guidelines for Liver Cirrhosis 2020
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Takemi Akahane, Tooru Shimosegawa, Hitoshi Yoshiji, Masahito Shimizu, Masayuki Kurosaki, Hiroki Nishikawa, Hisashi Hidaka, Koji Ogawa, Yoichi Hiasa, Kazuhiko Koike, Hiroto Miwa, Yoshinari Asaoka, Isao Sakaida, Takumi Kawaguchi, Tetsuo Takehara, Sumiko Nagoshi, Makiko Taniai, Nobuyuki Enomoto, Kazuaki Chayama, Shuji Terai, and Yoshiyuki Ueno
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Liver Cirrhosis ,medicine.medical_specialty ,Cirrhosis ,Complications ,medicine.medical_treatment ,Guidelines as Topic ,Review Article ,Liver transplantation ,Guidelines ,03 medical and health sciences ,0302 clinical medicine ,Hepatorenal syndrome ,Japan ,Internal medicine ,Diagnosis ,medicine ,Humans ,Intensive care medicine ,Portopulmonary hypertension ,business.industry ,Gastroenterology ,Guideline ,Hepatitis B ,Hepatology ,medicine.disease ,Treatment ,030220 oncology & carcinogenesis ,Evidence-Based Practice ,030211 gastroenterology & hepatology ,Steatohepatitis ,business - Abstract
The first edition of the clinical practice guidelines for liver cirrhosis was published in 2010, and the second edition was published in 2015 by the Japanese Society of Gastroenterology (JSGE). The revised third edition was recently published in 2020. This version has become a joint guideline by the JSGE and the Japan Society of Hepatology (JSH). In addition to the clinical questions (CQs), background questions (BQs) are new items for basic clinical knowledge, and future research questions (FRQs) are newly added clinically important items. Concerning the clinical treatment of liver cirrhosis, new findings have been reported over the past 5 years since the second edition. In this revision, we decided to match the international standards as much as possible by referring to the latest international guidelines. Newly developed agents for various complications have also made great progress. In comparison with the latest global guidelines, such as the European Association for the Study of the Liver (EASL) and American Association for the Study of Liver Diseases (AASLD), we are introducing data based on the evidence for clinical practice in Japan. The flowchart for nutrition therapy was reviewed to be useful for daily medical care by referring to overseas guidelines. We also explain several clinically important items that have recently received focus and were not mentioned in the last editions. This digest version describes the issues related to the management of liver cirrhosis and several complications in clinical practice. The content begins with a diagnostic algorithm, the revised flowchart for nutritional therapy, and refracted ascites, which are of great importance to patients with cirrhosis. In addition to the updated antiviral therapy for hepatitis B and C liver cirrhosis, the latest treatments for non-viral cirrhosis, such as alcoholic steatohepatitis/non-alcoholic steatohepatitis (ASH/NASH) and autoimmune-related cirrhosis, are also described. It also covers the latest evidence regarding the diagnosis and treatment of liver cirrhosis complications, namely gastrointestinal bleeding, ascites, hepatorenal syndrome and acute kidney injury, hepatic encephalopathy, portal thrombus, sarcopenia, muscle cramp, thrombocytopenia, pruritus, hepatopulmonary syndrome, portopulmonary hypertension, and vitamin D deficiency, including BQ, CQ and FRQ. Finally, this guideline covers prognosis prediction and liver transplantation, especially focusing on several new findings since the last version. Since this revision is a joint guideline by both societies, the same content is published simultaneously in the official English journal of JSGE and JSH.
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- 2021
158. Evidence‐based clinical practice guidelines for liver cirrhosis 2020
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Hiroto Miwa, Hitoshi Yoshiji, Takemi Akahane, Hiroki Nishikawa, Kazuhiko Koike, Masahito Shimizu, Isao Sakaida, Hisashi Hidaka, Shuji Terai, Koji Ogawa, Tooru Shimosegawa, Sumiko Nagoshi, Takumi Kawaguchi, Yoshiyuki Ueno, Tetsuo Takehara, Nobuyuki Enomoto, Makiko Taniai, Masayuki Kurosaki, Yoichi Hiasa, Yoshinari Asaoka, and Kazuaki Chayama
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medicine.medical_specialty ,Portopulmonary hypertension ,Evidence-based practice ,Cirrhosis ,Hepatology ,business.industry ,medicine.medical_treatment ,Guideline ,Liver transplantation ,medicine.disease ,Infectious Diseases ,Hepatorenal syndrome ,Internal medicine ,medicine ,Steatohepatitis ,Intensive care medicine ,business - Abstract
The first edition of the clinical practice guidelines for liver cirrhosis was published in 2010, and the second edition was published in 2015 by the Japanese Society of Gastroenterology (JSGE). The revised third edition was recently published in 2020. This version has become a joint guideline by the JSGE and the Japanese Society of Hepatology (JSH). In addition to the clinical questions (CQs), background questions (BQs) are new items for basic clinical knowledge, and future research questions (FRQs) are newly added clinically important items. Concerning the clinical treatment of liver cirrhosis, new findings have been reported over the past 5 years since the second edition. In this revision, we decided to match the international standards as much as possible by referring to the latest international guidelines. Newly developed agents for various complications have also made great progress. In comparison with the latest global guidelines, such as the European Association for the Study of the Liver (EASL) and American Association for the Study of Liver Diseases (AASLD), we are introducing data based on the evidence for clinical practice in Japan. The flowchart for nutrition therapy was reviewed to be useful for daily medical care by referring to overseas guidelines. We also explain several clinically important items that have recently received focus and were not mentioned in the last editions. This digest version describes the issues related to the management of liver cirrhosis and several complications in clinical practice. The content begins with a diagnostic algorithm, the revised flowchart for nutritional therapy, and refracted ascites, which are of great importance to patients with cirrhosis. In addition to the updated antiviral therapy for hepatitis B and C liver cirrhosis, the latest treatments for non-viral cirrhosis, such as alcoholic steatohepatitis/non-alcoholic steatohepatitis (ASH/NASH) and autoimmune-related cirrhosis, are also described. It also covers the latest evidence regarding the diagnosis and treatment of liver cirrhosis complications, namely gastrointestinal bleeding, ascites, hepatorenal syndrome and acute kidney injury, hepatic encephalopathy, portal thrombus, sarcopenia, muscle cramp, thrombocytopenia, pruritus, hepatopulmonary syndrome, portopulmonary hypertension, and vitamin D deficiency, including BQ, CQ and FRQ. Finally, this guideline covers prognosis prediction and liver transplantation, especially focusing on several new findings since the last version. Since this revision is a joint guideline by both societies, the same content is published simultaneously in the official English journal of JSGE and JSH.
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- 2021
159. Endoscopic ultrasound-guided transgastric pyogenic liver abscess drainage using a drill dilator
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Takeshi Ogura, Yuki Uba, Mitsuki Tomita, Masahiro Yamamura, and Hiroki Nishikawa
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Gastroenterology - Published
- 2023
160. Noninvasive endoscopic hemostasis technique for post‐papillectomy bleeding using a novel self‐assembling peptide (with video)
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Akira Miyano, Takeshi Ogura, and Hiroki Nishikawa
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Hepatology ,Gastroenterology - Published
- 2022
161. CD34
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Akira, Asai, Yusuke, Tsuchimoto, Hideko, Ohama, Hiroki, Nishikawa, Ashok, Chopra, and Kazuhide, Higuchi
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Alcoholism ,Culture Media, Conditioned ,Humans ,Antigens, CD34 ,Cell Differentiation ,Neprilysin ,HMGB1 Protein ,Opportunistic Infections ,Cell Adhesion Molecules ,Monocytes - Abstract
M2b monocytes commonly isolated from patients with unhealthy alcohol use (Alc) have been described as cells that make the host susceptible to opportunistic infections. CD34
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- 2022
162. Reduced grip strength is associated with progression of depressive status in chronic liver diseases
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Hiroki Nishikawa, Shuhei Nishiguchi, Hiroko Iijima, Nobuhiro Aizawa, Kazunori Yoh, Tomoyuki Takashima, Takashi Nishimura, Hirayuki Enomoto, and Naoto Ikeda
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Male ,Sarcopenia ,medicine.medical_specialty ,Multivariate analysis ,education ,Muscle mass ,Chronic liver disease ,Gastroenterology ,03 medical and health sciences ,Grip strength ,0302 clinical medicine ,Internal medicine ,mental disorders ,medicine ,Humans ,In patient ,030212 general & internal medicine ,Muscle, Skeletal ,Depression (differential diagnoses) ,Advanced and Specialized Nursing ,Hand Strength ,Depression ,business.industry ,Liver Diseases ,medicine.disease ,humanities ,Anesthesiology and Pain Medicine ,Female ,030211 gastroenterology & hepatology ,business ,Bioelectrical impedance analysis - Abstract
Background The causal relationship between sarcopenia and depression in chronic liver disease (CLD) patients is unclear. To elucidate these issues, we aimed to investigate the impacts of muscle strength as assessed by grip strength (GS) and muscle mass as assessed by bioelectrical impedance analysis (BIA) on the progression of depression in CLD patients (n=189, 49 cirrhotic cases, and 87 males). Methods The Beck Depression Inventory-2nd edition (BDI-II) was used for the evaluation of depression. Time interval from the date of baseline BDI-II and the first confirmed date of elevation of BDI-II score was calculated in each subject. We analyzed factors associated with the elevation of BDI-II score. Results The baseline mean BDI-II score was 8.4 (median value, 7). Depression (BDI-II score >11) was found in 63 patients (33.33%). GS decline at baseline was found in 13 male patients (14.9%) and 37 female patients (36.3%). Skeletal muscle index (SMI) by BIA decline at baseline was found in 25 male patients (28.7%) and 40 female patients (39.2%). During the follow-up period, 84 patients (44.4%) had the elevation of BDIII score. For all cases, the 1-, 2- and 3-year cumulative elevation rates of BDI-II score were 39.2%, 46.6% and 54.9%. In patients with GS decline at baseline, the 1-, 2- and 3-year cumulative elevation rates of BDI-II score were 53.1%, 67.8% and 77.9%, while in patients with GS non-decline at baseline, the 1-, 2- and 3-year cumulative elevation rates of BDI-II score were 34.4%, 39.8% and 47.4% (P=0.0006). In patients with SMI decline at baseline, the 1-, 2- and 3-year cumulative elevation rates of BDI-II score were 43.5%, 50.8% and 62.1%, while in patients with SMI non-decline at baseline, the 1-, 2- and 3-year cumulative elevation rates of BDI-II score were 36.9%, 44.5% and 51.0% (P=0.2487). As per the multivariate analyses, only lower GS at baseline (P=0.0022) was identified to be a significant factor associated with the elevation of BDI-II score. Conclusions Reduced GS rather than loss of muscle mass can be independently associated with an elevated risk for the progression of depression.
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- 2021
163. EMSIT-LD: estimating method of short-interval-traffic distribution considering long-term-traffic dynamics.
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Tadayoshi Fukami, Hiroki Nishikawa, Takuya Asaka, Tatsuro Takahashi, and Noriteru Shinagawa
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- 2004
- Full Text
- View/download PDF
164. Side channel power analysis resistance evaluation of masked adders on FPGA
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Yilin Zhao, Hiroki Nishikawa, Xiangbo Kong, and Hiroyuki Tomiyama
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Masking ,Logic ,Hardware and Architecture ,Power analysis attack ,T-test ,Electrical and Electronic Engineering ,Adders ,Side channel attacks ,Xilinx ,FPGA ,Computer Science Applications - Abstract
Since many internet of things (IoT) devices are threatened by side-channel attacks, security measures are essential for their safe use. However, there are a variety of IoT devices, so the accuracy required depends on the system’s application. In addition, security related to arithmetic operations has been attracting attention in recent years. Therefore, this paper presents an empirical experiment of masking for adders on field programmable gate arrays (FPGAs) and explores the trade-off between cost and security by varying the bit length of the mask. The experimental results show that masking improves power analysis attack resistance, and increasing the bit length of the random numbers used for masking increases security. In particular, the series-connected masked adder is found to be effective in improving power analysis attack resistance.
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- 2023
165. Severity of liver fibrosis using shear wave elastography is influenced by hepatic necroinflammation in chronic hepatitis patients, but not in cirrhotic patients
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Hiroki Nishikawa, Chikage Nakano, Hiroko Iijima, Naoto Ikeda, Masahiro Yoshida, Tomoyuki Takashima, Seiichi Hirota, Toshifumi Tada, Takashi Nishimura, Hirohisa Yano, Nobuhiro Aizawa, Hiroyuki Hachiya, Etsuro Hatano, and Hirayuki Enomoto
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medicine.medical_specialty ,Shear wave elastography ,Hepatology ,medicine.diagnostic_test ,business.industry ,Inflammation ,Extrahepatic Cholestasis ,Chronic liver disease ,medicine.disease ,Gastroenterology ,03 medical and health sciences ,0302 clinical medicine ,Infectious Diseases ,Fibrosis ,030220 oncology & carcinogenesis ,Liver biopsy ,Heart failure ,Internal medicine ,medicine ,030211 gastroenterology & hepatology ,medicine.symptom ,Transient elastography ,business - Abstract
AIM Shear wave elastography (SWE) in patients with chronic liver diseases is a noninvasive useful method for the diagnosis of liver fibrosis severity, which can be an alternative to liver biopsy. However, the liver stiffness measurement using SWE can be affected by various factors including hepatic inflammation, extrahepatic cholestasis, heart failure, and underlying liver diseases. The aim of this study is to clarify the correlation between liver stiffness using SWE and hepatic necroinflammation serologically and pathologically. METHODS A total of 843 patients with chronic liver disease who received liver biopsy were analyzed. Liver stiffness measurement using transient elastography (TE) and virtual touch quantification (VTQ) were carried out on the same day as the liver biopsy. The correlation between SWE and hepatic inflammation was analyzed serologically and pathologically. RESULTS The liver stiffness values increased significantly with the progression of liver fibrosis and inflammation (overall p
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- 2021
166. The Epidemiology of Admission-Requiring Pediatric Respiratory Infections in a Japanese Community Hospital Using Multiplex PCR
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Miyako Oka, Masayuki Onaka, Daisuke Kitagawa, Hiroki Nishikawa, Rika Suzuki, Atsushi Inagaki, Atsuko Nishiyama, Sayaka Yoshida, Taito Kitano, and Kazue Masuo
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Male ,0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,viruses ,030106 microbiology ,Hospitals, Community ,medicine.disease_cause ,03 medical and health sciences ,0302 clinical medicine ,Japan ,Human metapneumovirus ,Internal medicine ,Epidemiology ,medicine ,Humans ,030212 general & internal medicine ,Respiratory Tract Infections ,Retrospective Studies ,biology ,Respiratory tract infections ,Coinfection ,business.industry ,Infant ,Respiratory infection ,General Medicine ,Length of Stay ,biology.organism_classification ,medicine.disease ,Hospitalization ,Infectious Diseases ,Virus Diseases ,Child, Preschool ,Respiratory Syncytial Virus, Human ,Paramyxoviridae ,Linear Models ,Etiology ,Enterovirus ,Female ,Metapneumovirus ,Seasons ,Rhinovirus ,business ,Multiplex Polymerase Chain Reaction - Abstract
Respiratory tract infections (RTIs) are the most common diseases globally among children. This study aimed to assess the epidemiology of admission-requiring pediatric RTI cases and evaluate the effect of the pathogen type on the length of hospital stay (LOS) using the FilmArray® respiratory panel, a multiplex PCR test. The age-specific distribution and seasonality of viruses were investigated between March 26, 2018 and April 12, 2019. Multivariable linear regression analyses were performed to evaluate the effect of pathogen type and coinfection on LOS. Among 153 hospitalized RTI patients, respiratory syncytial virus was the leading cause of hospitalization in infants < 12 months of age (27.7%). Human metapneumovirus and parainfluenza virus were also major causes of hospitalization in patients aged 2-3 years (22.6% and 22.6%, respectively). In the multivariable linear regression model excluding rhinovirus/enterovirus, there was a significant association between viral coinfection and longer LOS (p = 0.012), while single viral infection of any type was not positively correlated with LOS. This study revealed the epidemiology of admission-requiring pediatric RTIs.
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- 2021
167. Energy-aware Routing of Delivery Drones under Windy Conditions
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Yusuke Funabashi, Ittetsu Taniguchi, Hiroki Nishikawa, Atsuya Shibata, Satoshi Ito, Hiroyuki Tomiyama, Xiangbo Kong, and Shunsuke Negoro
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Computer science ,business.industry ,Electrical and Electronic Engineering ,Routing (electronic design automation) ,business ,Energy (signal processing) ,Drone ,Computer Science Applications ,Computer network - Published
- 2021
168. Association of the Modified ALBI Grade With Endoscopic Findings of Gastroesophageal Varices
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Hiroko Iijima, Yoshinori Iwata, Hiroki Nishikawa, Takashi Nishimura, Yuho Miyamoto, Shuhei Nishiguchi, and Hirayuki Enomoto
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Liver Cirrhosis ,Pharmacology ,Cancer Research ,medicine.medical_specialty ,Carcinoma, Hepatocellular ,Cirrhosis ,medicine.diagnostic_test ,business.industry ,Esophagogastroduodenoscopy ,Incidence (epidemiology) ,Liver Neoplasms ,Bilirubin ,Prognosis ,medicine.disease ,Gastroenterology ,Gastroesophageal varices ,General Biochemistry, Genetics and Molecular Biology ,Varicose Veins ,Liver biopsy ,Internal medicine ,Humans ,Medicine ,business ,Research Article ,Retrospective Studies - Abstract
Background/Aim: This study aimed to assess the association of the modified albumin-bilirubin (mALBI) grade with the endoscopic findings of gastroesophageal varices (GEVs). Patients and Methods: A total of 141 patients with histologically proven cirrhosis who underwent a liver biopsy and esophagogastroduodenoscopy were enrolled. The relationships between the mALBI grade and endoscopic findings were evaluated. Results: The incidence of GEVs and high-risk GEVs differed among mALBI grades. Patients with mALBI grades of 2b-3 had higher rates of GEVs and high-risk GEVs in comparison to those with mALBI grades of 1-2a (p
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- 2021
169. Screening Tools for Sarcopenia
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Hiroki Nishikawa, Masahiro Goto, Kazuki Kakimoto, Takako Miyazaki, Akira Asai, Shuhei Nishiguchi, Toshihisa Takeuchi, Kazuhide Higuchi, Shinya Fukunishi, Takeshi Ogura, and Shiro Nakamura
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Gerontology ,Sarcopenia ,Cancer Research ,Review Article ,Muscle mass ,General Biochemistry, Genetics and Molecular Biology ,Surveys and Questionnaires ,Daily practice ,medicine ,Humans ,Mass Screening ,Dementia ,Elderly people ,Screening tool ,Geriatric Assessment ,Climbing stairs ,Aged ,Pharmacology ,business.industry ,musculoskeletal system ,medicine.disease ,body regions ,Cross-Sectional Studies ,Muscle strength ,business ,human activities - Abstract
The elderly people are characterized by multiple comorbidities, dementia, and are at risk of developing sarcopenia and frailty. Sarcopenia is defined by loss of muscle mass and muscle strength or physical decline. Sarcopenia is a main component of physical frailty. Screening tools for sarcopenia that can be easily determined in daily practice are useful and include the SARC-F screening tool. SARC-F is a questionnaire consisting of five questions: Strength (S), Assistance walking (A), Rising from a chair (R), Climbing stairs (C), and Falls (F) on a scale of 0 to 2. The recommended cutoff value is ≥4 points. The SARC-F has been shown to correlate well with clinical outcomes in the elderly and various underlying diseases, while it is also true that the SARC-F has its shortcomings such as low sensitivity for sarcopenia. In this review, we mainly outline the SARC-F and mention other screening tools for sarcopenia.
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- 2021
170. Predictors for Grip Strength Loss in Patients With Chronic Liver Diseases
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Takashi Nishimura, Hiroko Iijima, Naoto Ikeda, Nobuhiro Aizawa, Shuhei Nishiguchi, Hiroki Nishikawa, Hirayuki Enomoto, Tomoyuki Takashima, and Kazunori Yoh
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Liver Cirrhosis ,Male ,Cancer Research ,medicine.medical_specialty ,Cirrhosis ,Multivariate analysis ,Body water ,Chronic liver disease ,Gastroenterology ,General Biochemistry, Genetics and Molecular Biology ,Grip strength ,Body Water ,Internal medicine ,medicine ,Humans ,In patient ,Pharmacology ,Hand Strength ,business.industry ,Water ,Middle Aged ,medicine.disease ,Female ,Liver function ,Extracellular Space ,business ,Research Article - Abstract
Background/Aim: To elucidate factors associated with secular changes of grip strength (GS) in patients with chronic liver diseases (CLDs) (n=241, 102 males, median age=63 years, 87 liver cirrhosis cases). Materials and Methods: ΔGS (kg/year) was defined as [GS value (second time) – GS value (first time)]/[time interval between the first and second time]. GS loss (GSL) was defined as ΔGS
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- 2021
171. Factors Associated With Longitudinal QOL Change in Patients With Chronic Liver Diseases
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Hiroko Iijima, Shuhei Nishiguchi, Kazunori Yoh, Takashi Nishimura, Hirayuki Enomoto, and Hiroki Nishikawa
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Sarcopenia ,Cancer Research ,medicine.medical_specialty ,SF-36 ,Body water ,Chronic liver disease ,General Biochemistry, Genetics and Molecular Biology ,Grip strength ,Quality of life ,Internal medicine ,medicine ,Humans ,Muscle Strength ,Retrospective Studies ,Pharmacology ,business.industry ,Liver Diseases ,Skeletal muscle ,Circumference ,medicine.disease ,humanities ,medicine.anatomical_structure ,Quality of Life ,business ,Body mass index ,Research Article - Abstract
Aim: To examine the relationship between longitudinal quality of life (QOL) change, as assessed by the 36-Item Short Form Health Survey (SF-36), sarcopenia-related factors and body composition in patients with chronic liver diseases (CLDs). Patients and Methods: Data from patients with CLDs (n=184) were retrospectively analyzed, focusing on factors associated with the difference of physical and mental component summary score (PCS and MCS) in SF-36 between the two visits (Δ(PCS) and Δ(MCS)). The difference of serum albumin level, body mass index (BMI), arm circumference, arm muscle circumference, grip strength (GS), skeletal muscle index, extracellular to total body water ratio between the two visits were included into the multiple regression analysis. Results: Δ(albumin) (p=0.0325) and Δ(GS) (p
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- 2021
172. Successful endoscopic ultrasound-guided hepaticogastrostomy with use of a novel drill dilator for challenging tract dilation
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Takeshi, Ogura, Yuki, Uba, Masahiro, Yamamura, Jyunichi, Kawai, and Hiroki, Nishikawa
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Gastroenterology - Published
- 2022
173. Endoscopic ultrasound-guided antegrade stenting using a novel flower-type fully covered self-expandable metal stent
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Yoshitaro, Yamamoto, Takeshi, Ogura, Jyunichi, Kawai, Masahiro, Yamamura, Kazuya, Ueshima, and Hiroki, Nishikawa
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Gastroenterology - Published
- 2022
174. Effect of an Electronic Alert System on Hepatitis B Virus Reactivation in Patients Receiving Immunosuppressive Drug Therapy
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Akira Asai, Saho Hirai, Keisuke Yokohama, Tomohiro Nishikawa, Hiroki Nishikawa, and Kazuhide Higuchi
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HBV reactivation ,electronic alert ,immunosuppressive drug therapy ,virus diseases ,General Medicine ,digestive system diseases - Abstract
Hepatitis B virus (HBV) reactivation (HBVr) can occur in patients receiving immunosuppressive drug therapies, causing significant morbidity and mortality. Although the guidelines for HBVr have been proposed by several academic societies, some providers do not follow them, resulting in HBVr and death. As HBV-DNA levels increase before liver enzyme levels do, we previously constructed an electronic alert system that recommends the measurement of HBV-DNA. Here, we investigated whether this alert system improves the HBV-DNA measurement rate and elicits responses according to guidelines. A total of 5329 patients were divided into two groups, before and after the introduction of the alert system, and the HBV-DNA measurement rates in both groups were compared. Because of the introduction of the alert system, the HBV-DNA measurement rate among HBsAg-negative patients with anti-HBs and/or anti-HBc before immunosuppressive drug therapy improved significantly. The HBV-DNA monitoring rate within 3 months also improved significantly (p = 0.0034) in HBV-remission phase patients. HBVr was detected immediately, and the affected patients were treated with nucleotide analogs before severe hepatitis onset. The introduction of the alert system for HBVr improved the HBV-DNA measurement rates in patients receiving immunosuppressive drug therapy, leading to the rapid treatment of patients with HBVr.
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- 2022
175. Function‐level module sharing techniques in high‐level synthesis
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Ryohei Nozaki, Ittetsu Taniguchi, Hiroki Nishikawa, Kenta Shirane, and Hiroyuki Tomiyama
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General Computer Science ,Computer science ,high‐level synthesis ,lcsh:Electronics ,lcsh:TK7800-8360 ,Function (mathematics) ,function calls ,Topology ,lcsh:Telecommunication ,Electronic, Optical and Magnetic Materials ,function inlining ,lcsh:TK5101-6720 ,High-level synthesis ,Electrical and Electronic Engineering ,module sharing ,Hardware_REGISTER-TRANSFER-LEVELIMPLEMENTATION ,Hardware_LOGICDESIGN - Abstract
High‐level synthesis (HLS), which automatically synthesizes a register‐transfer level (RTL) circuit from a behavioral description written in a high‐level programming language such as C/C++, is becoming a more popular technique for improving design productivity. In general, HLS tools often generate a circuit with a larger area than those of hand‐designed ones. One reason for this issue is that HLS tools often generate multiple instances of the same module from a function. To eliminate such a redundancy in circuit area in HLS, HLS tools are capable of sharing modules. Function‐level module sharing at a behavioral description written in a high‐level programming language may promote function reuse to increase effectiveness and reduce circuit area. In this paper, we present two HLS techniques for module sharing at the function level.
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- 2020
176. Sarcopenia and Frailty in Chronic Liver Damage: Common and Different Points
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Ryo Takata, Yoshinori Iwata, Kyohei Kishino, Hiroki Nishikawa, Kazunori Yoh, Yoshiyuki Sakai, Takashi Koriyama, Kunihiro Hasegawa, Nobuhiro Aizawa, Shuhei Nishiguchi, Hiroko Iijima, Takashi Nishimura, Hirayuki Enomoto, Naoto Ikeda, Yukihisa Yuri, Tomoyuki Takashima, and Yoshihiro Shimono
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Sarcopenia ,Cancer Research ,medicine.medical_specialty ,Cirrhosis ,Multivariate analysis ,Body water ,Gastroenterology ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,Grip strength ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Muscle, Skeletal ,Pharmacology ,Muscle Weakness ,Frailty ,business.industry ,Muscle weakness ,musculoskeletal system ,medicine.disease ,body regions ,Preferred walking speed ,Liver ,030220 oncology & carcinogenesis ,medicine.symptom ,business ,human activities ,Body mass index ,Research Article - Abstract
Aim To elucidate the common and different points between sarcopenia and frailty in chronic liver damage (CLD). Patients and methods Patients with both grip strength decline and skeletal muscle index decline were regarded as sarcopenia. Frailty was defined as a syndrome in which 3 or more of the following criteria were met: i) exhaustion, ii) body weight loss, iii) slow walking speed, iv) muscle weakness, and v) low physical activity. Results Sarcopenia and frailty were identified in 52 patients (15.2%) and 46 (13.5%), respectively. The prevalence of sarcopenia and frailty was well stratified according to age and the liver cirrhosis (LC) status. In the multivariate analysis, we identified significant factors for sarcopenia: i) age, ii) LC, iii) body mass index and iv) extracellular water (ECW) to total body water (TBW) ratio, while only the ECW to TBW ratio was significant for frailty. Conclusion Sarcopenia and frailty in CLD should be separately evaluated.
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- 2020
177. Arm Skeletal Muscle Mass Is Associated With the Prognosis of Patients With Cirrhosis
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Ei-Ichiro Moriwaki, Takashi Nishimura, Yoshinori Iwata, Shuhei Nishiguchi, Hiroki Nishikawa, Yoshihiro Shimono, Hiroko Iijima, Hirayuki Enomoto, and Kyohei Kishino
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Adult ,Liver Cirrhosis ,Male ,Cancer Research ,medicine.medical_specialty ,Cirrhosis ,General Biochemistry, Genetics and Molecular Biology ,Upper Extremity ,Young Adult ,Liver Function Tests ,Internal medicine ,Electric Impedance ,medicine ,Humans ,In patient ,Clinical significance ,Muscle, Skeletal ,Aged ,Aged, 80 and over ,Pharmacology ,business.industry ,Organ Size ,Middle Aged ,Prognosis ,medicine.disease ,Skeletal muscle mass ,Bioimpedance Analysis ,Body Composition ,Cardiology ,Female ,business ,Biomarkers ,Research Article - Abstract
Background/Aim: This study aimed to assess the clinical significance of measuring the arm skeletal muscle mass in patients with cirrhosis. Patients and Methods: Using body composition data measured with the bioimpedance analysis (BIA) method, the skeletal muscle mass index (SMI) values of the arm (arm skeletal muscle mass/height(2)) and leg (leg skeletal mass muscle/height(2)) were calculated for 353 patients with cirrhosis, and the relationships of these indices to their prognosis were assessed. In addition, overhydration of the upper and lower limbs was compared. Results: Arm SMI was significantly positively associated with the prognosis of patients with cirrhosis (p=0.0002) but leg SMI was not (p=0.0829). The rate of overhydration in the lower limbs was significantly higher than that in the upper limbs (p
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- 2020
178. Association of an Overhydrated State With the Liver Fibrosis and Prognosis of Cirrhotic Patients
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Hirayuki Enomoto, Yoshinori Iwata, Kyohei Kishino, Takashi Nishimura, Hiroko Iijima, Ei-Ichiro Moriwaki, Hiroki Nishikawa, Yoshihiro Shimono, and Shuhei Nishiguchi
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Liver Cirrhosis ,Male ,Sarcopenia ,Cancer Research ,medicine.medical_specialty ,Biopsy ,Liver fibrosis ,Body water ,Nutritional Status ,Gastroenterology ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,fluids and secretions ,0302 clinical medicine ,Body Water ,Internal medicine ,Humans ,Medicine ,Body Weights and Measures ,Clinical significance ,Decreased muscle mass ,Aged ,Pharmacology ,medicine.diagnostic_test ,business.industry ,Middle Aged ,Anthropometry ,Prognosis ,medicine.disease ,Bioimpedance Analysis ,030220 oncology & carcinogenesis ,Liver biopsy ,Body Composition ,Female ,business ,Biomarkers ,Research Article - Abstract
Background/aim A bioimpedance analysis (BIA) can indicate an overhydrated state as the extracellular water/total body water (ECW/TBW) value. This study aimed to assess the clinical significance of this value in patients with chronic liver diseases (CLDs). Patients and methods A total of 552 CLD patients who received a liver biopsy and underwent anthropometric assessment and BIA-based body composition analysis were enrolled. The association of the ECW/TBW value with the liver fibrosis and nutritional status was assessed. The relationship between the ECW/TBW value and the prognosis of cirrhotic patients (N=209) was also evaluated. Results The ECW/TBW value increased as liver fibrosis progressed and was also related to decreased muscle mass/sarcopenia. The presence of overhydration was associated with a poor prognosis of cirrhotic patients. Conclusion An increased ECW/TBW value was associated with progressive liver fibrosis and malnutrition and related to the prognosis of cirrhotic patients.
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- 2020
179. The impact analysis of a multiplex PCR respiratory panel for hospitalized pediatric respiratory infections in Japan
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Daisuke Kitagawa, Kazue Masuo, Miyako Oka, Atsuko Nishiyama, Hiroki Nishikawa, Rika Suzuki, Taito Kitano, Masayuki Onaka, and Sayaka Yoshida
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Male ,0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,030106 microbiology ,Antimicrobial stewardship ,Pediatrics ,Article ,Time-to-Treatment ,03 medical and health sciences ,0302 clinical medicine ,Japan ,Respiratory infection ,Internal medicine ,Multiplex polymerase chain reaction ,medicine ,Humans ,Pharmacology (medical) ,030212 general & internal medicine ,Respiratory system ,Child ,Respiratory Tract Infections ,Retrospective Studies ,business.industry ,Infant ,Bacterial Infections ,Multiplex PCR ,Antimicrobial ,Community hospital ,Anti-Bacterial Agents ,Hospitalization ,Molecular Typing ,Rapid molecular test ,Infectious Diseases ,Rapid antigen test ,Child, Preschool ,Female ,business ,Multiplex Polymerase Chain Reaction - Abstract
Background Rapid molecular diagnosis of infections has contributed to timely treatments and antimicrobial stewardship. However, the benefit and cost-effectiveness vary in each country or community because they have different standard practices and health care systems. In Japan, rapid antigen tests (RATs) have been frequently used for pediatric respiratory infections. We investigated the impact and cost-effectiveness of a multiplex PCR (mPCR) respiratory panel for pediatric respiratory infections in a Japanese community hospital. Methods We replaced RATs with an mPCR respiratory panel (FilmArray®) for admitted pediatric respiratory infections on March 26, 2018. We compared the days of antimicrobial therapy (DOT) and length of stay (LOS) during the mPCR period (March 2018 to April 2019) with those of the RAT period (March 2012 to March 2018). Results During the RAT and mPCR periods, 1132 and 149 patients were analyzed. The DOT/case was 12.82 vs 8.56 (p
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- 2020
180. The Anthropometric Assessment With the Bioimpedance Method Is Associated With the Prognosis of Cirrhotic Patients
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Naoki Hara, Takashi Nishimura, Yoshinori Iwata, Hiroki Nishikawa, Shuhei Nishiguchi, Ei-Ichiro Moriwaki, Hirayuki Enomoto, Hiroko Iijima, and Masaki Saito
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Adult ,Liver Cirrhosis ,Male ,musculoskeletal diseases ,Cancer Research ,medicine.medical_specialty ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Arm muscle ,Electric Impedance ,medicine ,Humans ,Clinical significance ,Aged ,Aged, 80 and over ,Pharmacology ,Anthropometry ,Anthropometric data ,business.industry ,Muscles ,Middle Aged ,Prognosis ,Circumference ,Survival Analysis ,Bioimpedance Analysis ,030220 oncology & carcinogenesis ,Arm ,Body Constitution ,Female ,business ,Research Article - Abstract
Background/Aim: The bioimpedance analysis (BIA) can provide anthropometric data on patients. The aim of the study is to evaluate the clinical relevance of these automatically obtained values. Patients and Methods: We studied the arm circumference (AC) and arm muscle circumference (AMC) of 197 histologically proven cirrhotic patients. The BIA-based anthropometric data were compared to the manually measured data. In addition, we evaluated whether or not the BIA-based anthropometric data were associated with the prognosis of the patients. Results: The data of %AC and %AMC obtained using the two methods were well correlated (p
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- 2020
181. Hypermethylation of Corticotropin Releasing Hormone Receptor-2 Gene in Ulcerative Colitis Associated Colorectal Cancer
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Tomoki Yamano, Akihito Babaya, Ikuo Matsuda, Naohiro Tomita, Kei Kimura, Motoi Uchino, Nagahide Matsubara, Masayoshi Kobayashi, Michiko Yasuhara, Hiroki Ikeuchi, Jihyng Song, Yasushi Okazaki, Masataka Ikeda, Hiroki Nishikawa, Seiichi Hirota, and Yutaka Nakachi
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Adult ,Male ,Oncology ,Cancer Research ,medicine.medical_specialty ,Colon ,Colorectal cancer ,medicine.disease_cause ,Receptors, Corticotropin-Releasing Hormone ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,0302 clinical medicine ,Intestinal mucosa ,Internal medicine ,Cancer screening ,medicine ,Humans ,Intestinal Mucosa ,Colitis ,Pharmacology ,business.industry ,DNA Methylation ,Middle Aged ,medicine.disease ,Ulcerative colitis ,CpG site ,030220 oncology & carcinogenesis ,DNA methylation ,Colitis, Ulcerative ,CpG Islands ,Female ,Colorectal Neoplasms ,Carcinogenesis ,business ,Research Article - Abstract
Background/aim The difficulty of early diagnosis of colitis associated colorectal cancer (CACRC) due to colonic mucosal changes in long-standing ulcerative colitis (UC) patients is often experienced in daily clinical practice. Noninvasive objective monitoring for cancer development is advantageous for optimizing treatment strategies in UC patients. We aimed to examine the epigenetic alterations occurring in CACRC, focusing on DNA hypermethylation of CpG islands. Materials and methods The level of DNA methylation in CpG cites was compared between CACRC and the counterpart non-tumorous mucosa using Infinium HumanMethylation 450K BeadChip. Results Our subjects included 3 males and 3 females (median age, 49.5 years). The 450K CpG site DNA methylation microarray revealed that the difference in β value (level of hypermethylation) was the highest for corcicotropin releasing hormone receptor 2 (CRHR2) between CACRC and counterpart non-tumorous mucosa. Conclusion Detection of hypermethylation of CRHR2 may be promising for cancer screening in UC patients.
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- 2019
182. Adverse Drug Reaction Relief System in Japan: From Clinical Perspective
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Nobuyuki Miyasaka, Tatsuya Kondo, Reiko Sato, Daisaku Sato, Hiroki Nishikawa, Meguru Watanabe, and Yoshikazu Hayashi
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Drug-Related Side Effects and Adverse Reactions ,Package insert ,Pharmacy ,030226 pharmacology & pharmacy ,01 natural sciences ,010104 statistics & probability ,03 medical and health sciences ,0302 clinical medicine ,Japan ,Physicians ,medicine ,Adverse Drug Reaction Reporting Systems ,Humans ,Pharmacology (medical) ,Review process ,0101 mathematics ,Adverse effect ,Referral and Consultation ,Pharmacology, Toxicology and Pharmaceutics (miscellaneous) ,business.industry ,Perspective (graphical) ,Public Health, Environmental and Occupational Health ,medicine.disease ,Medical emergency ,business ,Adverse drug reaction - Abstract
Adverse drug reaction (ADR) relief system in Japan is comprehensively described in this article. Particularly, review process during ADR relief evaluation is focused from clinical perspective. The significance of clinical review process and roles of a physician medical reviewer in the ADR relief system in Japan are also discussed. The current ADR Relief Service in Japan requires criteria for compensation eligibility including the "proper" use of the medication associated with the adverse event, and reasonably plausible association between the drug and the adverse event. The criteria are primarily reviewed at the ADR relief department of Pharmaceuticals and Medical Devices Agency (PMDA). In this article, after introducing framework of the ADR relief system in Japan including review processes at PMDA, actual process of the ADR relief assessment is described. In more details, we explain appropriate indication and appropriate usage in the ADR relief evaluation and unexpected/unwritten ADR in the Japanese package insert. Also described are time period for the payment, causality assessment between ADRs and the death, and pitfalls during the evaluation of the ADR relief system in Japan. In the last part, current issues and future directions are referred.
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- 2019
183. Comparison of Endoscopic Hemostasis for Endoscopic Sphincterotomy Bleeding between a Novel Self-Assembling Peptide and Conventional Technique
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Yuki, Uba, Takeshi, Ogura, Saori, Ueno, Atsushi, Okuda, Nobu, Nishioka, Akira, Miyano, Yoshitaro, Yamamoto, Kimi, Bessho, Mitsuki, Tomita, Junichi, Nakamura, Akitoshi, Hakoda, and Hiroki, Nishikawa
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PuraStat ,bleeding ,hemostasis ,endoscopic sphincterotomy ,ERCP ,General Medicine - Abstract
Introduction: Recently, a novel self-assembling peptide hemostatic gel has become available in Japan. However, the safety and efficacy of this novel self-assembling peptide hemostatic gel remain unclear for bleeding after EST. The aim of this study was to evaluate the safety and efficacy of a novel self-assembling peptide hemostatic gel for bleeding after EST, and to perform a comparison to a conventional endoscopic hemostasis technique. Method: This retrospective study was carried out between January 2019 and October 2022. Patients who developed bleeding associated with EST were enrolled. The patients were divided into two groups based on the hemostasis technique used: a conventional hemostasis technique (Group A) or a novel self-assembling peptide hemostatic gel hemostasis technique (Group B). Result: A total of 62 patients (Group A, n = 36; Group B, n = 26) were included. Endoscopic hemostasis was initially obtained in 72.2% (26/32) of patients in Group A and in 88.4% (23/26) of patients in Group B, which was not significantly different (p = 0.1320). However, the procedure time was significantly shorter in Group B (mean, 9.38 min) compared with Group A (mean, 15.4 min) (p = 0.0103). There were no significant differences in the severity of bleeding between the two groups (p = 0.4530). Post-EST bleeding was observed in six patients (Group A, n = 4; Group B, n = 2). Adverse events were more frequently observed in Group A (n = 12) than in Group B (n = 1) (p = 0.0457). Conclusions: PuraStat application for EST bleeding might be safe and effective, and is comparable to the conventional endoscopic hemostasis technique, although further prospective randomized trials are needed.
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- 2022
184. Prognostic Impact of the SARC-F Score in Gastrointestinal Advanced Cancers
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Masahiro Matsui, Hiroki Nishikawa, Masahiro Goto, Akira Asai, Kosuke Ushiro, Takeshi Ogura, Toshihisa Takeuchi, Shiro Nakamura, Kazuki Kakimoto, Takako Miyazaki, Shinya Fukunishi, Hideko Ohama, Keisuke Yokohama, Hidetaka Yasuoka, and Kazuhide Higuchi
- Subjects
sarcopenia ,Cancer Research ,SARC-F ,Oncology ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,advanced cancer ,prognosis ,RC254-282 ,gastrointestinal disease ,Article - Abstract
Simple Summary There have been few reports with regard to the relevance between the SARC-F score and the prognosis in patients with gastrointestinal advanced cancers, and we aimed to elucidate these issues (n = 421, median age = 73 years). During the follow-up period, 145 patients (34.4%) died. The 1-year cumulative overall survival rate in patients with SARC-F ≥ 4 (recommended cutoff point, n = 103) and SARC-F < 4 (n = 318) was 33.9% and 61.6% (p < 0.0001). In the multivariate analysis for the overall survival, total lymphocyte count ≥ 1081/μL (p = 0.0014), the SARC-F score ≥ 4 (p = 0.0096), Glasgow prognostic score 1 (p = 0.0147) and 2 (p < 0.0001), ECOG-PS 2 (p < 0.0001), and 3 (p < 0.0001) and 4 (p < 0.0001) were independent predictors. In the receiver operating characteristic curve analysis on the prognostic value of the SARC-F score, the sensitivity/specificity was 0.59/0.70, and the best cutoff point of the SARC-F score was two. The SARC-F score appears to be useful in patients with gastrointestinal advanced malignancies. Abstract We sought to elucidate the prognostic impact of the SARC-F score among patients with gastrointestinal advanced malignancies (n = 421). A SARC-F score ≥ 4 was judged to have a strong suspicion for sarcopenia. In patients with ECOG-PS 4 (n = 43), 3 (n = 61), and 0–2 (n = 317), 42 (97.7%), 53 (86.9%) and 8 (2.5%) had the SARC-F score ≥ 4. During the follow-up period, 145 patients (34.4%) died. All deaths were cancer-related. The 1-year cumulative overall survival (OS) rate in patients with SARC-F ≥ 4 (n = 103) and SARC-F < 4 (n = 318) was 33.9% and 61.6% (p < 0.0001). In the multivariate analysis for the OS, total lymphocyte count ≥ 1081/μL (p = 0.0014), the SARC-F score ≥ 4 (p = 0.0096), Glasgow prognostic score (GPS) 1 (p = 0.0147, GPS 0 as a standard), GPS 2 (p < 0.0001, GPS 0 as a standard), ECOG-PS 2 (p < 0.0001, ECOG-PS 0 as a standard), ECOG-PS 3 (p < 0.0001, ECOG-PS 0 as a standard), and ECOG-PS 4 (p < 0.0001, ECOG-PS 0 as a standard) were independent predictors. In the receiver operating characteristic curve analysis on the prognostic value of the SARC-F score, the sensitivity/specificity was 0.59/0.70, and best cutoff point of the SARC-F score was two. In conclusion, the SARC-F score is useful in patients with gastrointestinal advanced malignancies.
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- 2021
185. Therapeutic Drug Monitoring of Golimumab for the Prediction of Long-Term Clinical Remission in Patients with Ulcerative Colitis
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Hideki Tawa, Kazuki Kakimoto, Keijiro Numa, Naohiko Kinoshita, Yuka Kawasaki, Yoshihiro Tatsumi, Ryoji Koshiba, Satoshi Nakata, Yuki Hirata, Kazuhiro Ota, Naokuni Sakiyama, Yuichi Kojima, Eiko Koubayashi, Hiroki Nishikawa, Toshihisa Takeuchi, Takuya Inoue, Shinya Fukunishi, Takako Miyazaki, Shiro Nakamura, and Kazuhide Higuchi
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Treatment Outcome ,Tumor Necrosis Factor-alpha ,Remission Induction ,Gastroenterology ,Antibodies, Monoclonal ,Humans ,Colitis, Ulcerative ,Tumor Necrosis Factor Inhibitors ,Drug Monitoring - Abstract
Background and Aims: A considerable number of patients with ulcerative colitis (UC) who initially respond to golimumab (GLM), an anti-TNF-α antibody, gradually lose clinical response. Therapeutic drug monitoring has been proposed to optimize serum anti-TNF-α antibody concentrations before the loss of response; however, little is known about ideal serum GLM concentrations. We aimed to evaluate whether the serum GLM trough levels (TLs) early after the initiation of induction therapy affect the long-term outcomes in UC and to identify the early GLM TLs that should be targeted for better long-term outcomes. Methods: Thirty-one patients were prospectively evaluated. The primary outcome was clinical remission at 54 weeks, and we measured the serum GLM TLs at weeks 6, 10, and 14. Receiver operating characteristic (ROC) curves were constructed to identify optimal GLM TL thresholds early after induction therapy that were associated with clinical remission at week 54. Results: The GLM TL at week 14, but not at weeks 6 or 10, was significantly associated with clinical remission at week 54 (median [IQR] 1.6 [1.3–1.6] μg/mL vs. 0.9 [0.6–1.3] μg/mL; p = 0.04). The area under the ROC curve for GLM TLs at week 14 was 0.78. We identified a week-14 GLM TL of 1.1 μg/mL as the target threshold for achieving clinical remission at week 54. Conclusion: Our results demonstrate the value of early serum GLM TLs in predicting the long-term outcomes of GLM for patients with UC.
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- 2021
186. Risk Factors for Nephrotoxicity due to Tacrolimus Therapy for Ulcerative Colitis
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Satoshi Nakata, Kazuki Kakimoto, Keijiro Numa, Naohiko Kinoshita, Yuka Kawasaki, Yoshihiro Tatsumi, Hideki Tawa, Ryoji Koshiba, Yuki Hirata, Kazuhiro Ota, Naokuni Sakiyama, Yuichi Kojima, Hiroki Nishikawa, Takuya Inoue, Toshihisa Takeuchi, Shinya Fukunishi, Takako Miyazaki, Shiro Nakamura, and Kazuhide Higuchi
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Male ,Treatment Outcome ,Risk Factors ,Gastroenterology ,Humans ,Colitis, Ulcerative ,Acute Kidney Injury ,Renal Insufficiency, Chronic ,Immunosuppressive Agents ,Tacrolimus ,Retrospective Studies - Abstract
Background and Aims: The calcineurin inhibitor tacrolimus is reportedly effective for moderate/severe ulcerative colitis (UC); however, it is also reportedly associated with nephrotoxicity. We investigated the risk factors for tacrolimus-induced nephrotoxicity and whether renal impairment adversely affected the outcomes of tacrolimus treatment in patients with UC. Methods: We conducted a retrospective study of 93 patients with UC who were administered tacrolimus leading to high trough levels (10–15 ng/mL) for 2 weeks and low trough levels (5–10 ng/mL) for 3 months. Results: Acute kidney injury (AKI) occurred in 44 patients (47.3%) during tacrolimus treatment. Of these patients, 34 (36.6%) developed AKI during the high trough phase and 17 (18.3%) developed AKI when the trough value exceeded the original target value of 15 ng/mL. Multivariate logistic regression analysis revealed that the male sex was significantly associated with AKI (p = 0.002, AOR = 4.38, 95% CI [1.69–11.3]). Clinical remission rate after 4, 8, 12, and 24 weeks of tacrolimus treatment in patients with AKI was lower than that in patients without AKI. Six patients (6.5%) had chronic kidney disease (CKD) after tacrolimus treatment completion, and all patients with CKD developed AKI during treatment. The median duration of treatment with no improvement in AKI was significantly longer in patients with CKD than in those without CKD (p = 0.016). Conclusion: We revealed the risk factors for tacrolimus-induced nephrotoxicity. Renal impairment occurrence adversely affected the tacrolimus treatment outcome; therefore, it is important to carefully administer tacrolimus to prevent renal impairment.
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- 2021
187. Heuristic algorithms for dynamic scheduling of moldable tasks in multicore embedded systems
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Takuma Hikida, Hiroki Nishikawa, and Hiroyuki Tomiyama
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Parallel computing ,Multicore ,Dynamic scheduling ,Fixed number ,Heuristic algorithm ,Computer Science::Operating Systems - Abstract
Dynamic scheduling of parallel tasks is one of the efficient techniques to achieve high performance in multicore systems. Most existing algorithms for dynamic task scheduling assume that a task runs on one of the multiple cores or a fixed number of cores. Existing researches on dynamic task scheduling methods have evaluated their methods in different experimental environments and models. In this paper, the dynamic task scheduling methods are systematically rearranged and evaluated.
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- 2021
188. Design of a 32-bit Accuracy-Controllable Approximate Multiplier for FPGAs
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Xiangbo Kong, Tongxin Yang, Hiroki Nishikawa, Masaki Sano, Kenta Shirane, Hiroyuki Tomiyama, and Tomoaki Ukezono
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Computer science ,Multiplier (economics) ,32-bit ,Arithmetic ,Field-programmable gate array - Published
- 2021
189. Power Side-Channel Analysis for Different Adders on FPGA
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Hiroki Nishikawa, Yilin Zhao, Xiangbo Kong, Qidi Zhang, and Hiroyuki Tomiyama
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Adder ,Computer science ,Electronic engineering ,Side channel attack ,Field-programmable gate array ,Power (physics) - Published
- 2021
190. Impacts of HLS Optimizations on Side-Channel Leakage for AES Circuits
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Hiroyuki Tomiyama, Takumi Mizuno, Xiangbo Kong, Hiroki Nishikawa, and Qidi Zhang
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Materials science ,Electronic engineering ,Side channel attack ,Leakage (electronics) ,Electronic circuit - Published
- 2021
191. Metabolic Syndrome and Sarcopenia
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Akira Asai, Hiroki Nishikawa, Shuhei Nishiguchi, Kazuhide Higuchi, and Shinya Fukunishi
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Male ,Aging ,medicine.medical_specialty ,Weakness ,mechanism ,Review ,medicine.disease_cause ,metabolic syndrome ,sarcopenic obesity ,sarcopenia ,Insulin resistance ,Internal medicine ,insulin resistance ,medicine ,Humans ,Sarcopenic obesity ,TX341-641 ,Muscle, Skeletal ,Aged ,Aged, 80 and over ,Nutrition and Dietetics ,business.industry ,Nutrition. Foods and food supply ,Skeletal muscle ,medicine.disease ,musculoskeletal system ,body regions ,Endocrinology ,medicine.anatomical_structure ,Sarcopenia ,Quality of Life ,outcome ,Female ,Intramuscular fat ,medicine.symptom ,Metabolic syndrome ,business ,human activities ,Oxidative stress ,Food Science - Abstract
Skeletal muscle is a major organ of insulin-induced glucose metabolism. In addition, loss of muscle mass is closely linked to insulin resistance (IR) and metabolic syndrome (Met-S). Skeletal muscle loss and accumulation of intramuscular fat are associated with a variety of pathologies through a combination of factors, including oxidative stress, inflammatory cytokines, mitochondrial dysfunction, IR, and inactivity. Sarcopenia, defined by a loss of muscle mass and a decline in muscle quality and muscle function, is common in the elderly and is also often seen in patients with acute or chronic muscle-wasting diseases. The relationship between Met-S and sarcopenia has been attracting a great deal of attention these days. Persistent inflammation, fat deposition, and IR are thought to play a complex role in the association between Met-S and sarcopenia. Met-S and sarcopenia adversely affect QOL and contribute to increased frailty, weakness, dependence, and morbidity and mortality. Patients with Met-S and sarcopenia at the same time have a higher risk of several adverse health events than those with either Met-S or sarcopenia. Met-S can also be associated with sarcopenic obesity. In this review, the relationship between Met-S and sarcopenia will be outlined from the viewpoints of molecular mechanism and clinical impact.
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- 2021
192. Inflammatory Bowel Disease and Sarcopenia: Its Mechanism and Clinical Importance
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Hiroki Nishikawa, Shinya Fukunishi, Akira Asai, Shiro Nakamura, Kazuki Kakimoto, Takako Miyazaki, Shuhei Nishiguchi, and Kazuhide Higuchi
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medicine.medical_specialty ,Adipose tissue ,mechanism ,Inflammation ,Disease ,Review ,Gastroenterology ,Inflammatory bowel disease ,digestive system ,sarcopenia ,inflammatory bowel disease ,Internal medicine ,medicine ,intervention ,business.industry ,General Medicine ,medicine.disease ,Short bowel syndrome ,musculoskeletal system ,Ulcerative colitis ,digestive system diseases ,body regions ,Malnutrition ,Sarcopenia ,outcome ,Medicine ,medicine.symptom ,business ,human activities - Abstract
Malnutrition is a major contributor to muscle loss and muscle dysfunction, known as sarcopenia. Malnutrition is common in patients with inflammatory bowel disease (IBD). IBD includes ulcerative colitis (UC) and Crohn’s disease (CD). The number of patients with IBD has recently been increasing. More severe malnutrition is often seen in CD compared to UC, probably due to CD affecting the main site of nutrient absorption, extensive mucosal lesions, fistulas, short bowel syndrome after resection, or obstruction of the gastrointestinal tract. A recent meta-analysis showed the high prevalence of sarcopenia in patients with IBD, and thus sarcopenia is a very important problem for IBD. Although IBD is more common in younger patients, sarcopenia can develop through a variety of mechanisms, including malnutrition, chronic inflammation, increased inflammatory status in adipose tissue, vitamin deficiency, and imbalance of the muscle–gut axis. In addition, sarcopenia has a negative impact on postoperative complications and hospital stay in patients with IBD. Appropriate intervention for sarcopenia may be important, in addition to clinical remission and endoscopic mucosal healing in patients with IBD. Much more attention will thus be paid to sarcopenia in patients with IBD. In this review, we outline IBD and sarcopenia, based on the current evidence.
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- 2021
193. Sarcopenia, frailty and type 2 diabetes mellitus (Review)
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Akira Asai, Hideko Ohama, Shinya Fukunishi, Hiroki Nishikawa, Shuhei Nishiguchi, Kazuhide Higuchi, and Keisuke Yokohama
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Cancer Research ,medicine.medical_specialty ,Sarcopenia ,medicine.medical_treatment ,Protein degradation ,Biochemistry ,Muscle hypertrophy ,Insulin resistance ,Internal medicine ,Genetics ,medicine ,Animals ,Humans ,Hypoglycemic Agents ,Muscle, Skeletal ,Molecular Biology ,Frailty ,business.industry ,Insulin ,Muscle weakness ,Type 2 Diabetes Mellitus ,Skeletal muscle ,medicine.disease ,Endocrinology ,medicine.anatomical_structure ,Oncology ,Diabetes Mellitus, Type 2 ,Molecular Medicine ,medicine.symptom ,business - Abstract
Skeletal muscle is the largest and most energy‑consuming organ in the human body, which plays an important role in energy metabolism and glucose uptake. There is a notable decrease in glucose uptake in the skeletal muscle of patients with type 2 diabetes mellitus (DM). Endurance exercise can reduce hyperglycemia and improve insulin resistance in patients with type 2 DM. Insulin exerts a variety of effects, many of which are mediated by Akt, including increasing glucose uptake, promoting glycogen synthesis and inhibiting glycogen degradation, increasing free fatty acid uptake, increasing protein synthesis, promoting muscle hypertrophy and inhibiting protein degradation. Skeletal muscle mass progressively declines with aging, resulting in loss of muscle strength and physical function. Sarcopenia is a syndrome characterized by loss of skeletal muscle mass and muscle weakness or loss of physical function, and frailty is another syndrome that has received great interest in recent years. Decreased organ function results in vulnerability to external stress. Frailty is associated with falls, fractures and hospitalization; however, there is the reversibility of returning to a healthy state with appropriate interventions. Frailty is classified into three subgroups: Physical frailty, social frailty and cognitive frailty, whereby sarcopenia is the main component of physical frailty. The present review discusses the associations between sarcopenia, frailty and type 2 DM based on current evidence.
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- 2021
194. Pathophysiology and mechanisms of primary sarcopenia (Review)
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Hiroki Nishikawa, Shinya Fukunishi, Shuhei Nishiguchi, Kazuhide Higuchi, Keisuke Yokohama, and Akira Asai
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Aging ,Sarcopenia ,Satellite Cells, Skeletal Muscle ,Muscle Proteins ,Bioinformatics ,Nursing care ,Insulin resistance ,Myofibrils ,Myokine ,Genetics ,Humans ,Medicine ,Myocyte ,Muscle, Skeletal ,Aged ,business.industry ,Mechanism (biology) ,Skeletal muscle ,General Medicine ,musculoskeletal system ,medicine.disease ,Review article ,body regions ,Muscular Atrophy ,medicine.anatomical_structure ,Cytokines ,business ,human activities - Abstract
Aging causes skeletal muscle atrophy, and myofiber loss can be a critical component of this process. In 1989, Rosenberg emphasized the importance of the loss of skeletal muscle mass that occurs with aging and coined the term 'sarcopenia'. Since then, sarcopenia has attracted considerable attention due to the aging population in developed countries. The presence of sarcopenia is closely related to staggering, falls and even frailty in the elderly, which in turn leads to the need for nursing care. Sarcopenia is often associated with a poor prognosis in the elderly. Therefore, it is crucial to investigate the causes and pathogenesis of sarcopenia, and to develop and introduce interventional strategies in line with these causes and pathogenesis. Sarcopenia can be a primary component of physical frailty. The association between sarcopenia, frailty and locomotive syndrome is complex; however, sarcopenia is a muscle‑specific concept that is relatively easy to approach in research. In the elderly, a lack of exercise, malnutrition and hormonal changes lead to neuromuscular junction insufficiency, impaired capillary blood flow, reduced repair and regeneration capacity due to a decrease in the number of muscle satellite cells, the infiltration of inflammatory cells and oxidative stress, resulting in muscle protein degradation exceeding synthesis. In addition, mitochondrial dysfunction causes metabolic abnormalities, such as insulin resistance, which may lead to quantitative and qualitative abnormalities in skeletal muscle, resulting in sarcopenia. The present review article focuses on age‑related primary sarcopenia and outlines its pathogenesis and mechanisms.
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- 2021
195. Energy-aware scheduling of malleable fork-join tasks under a deadline constraint on heterogeneous multicores
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Hiroyuki Tomiyama, Ittetsu Taniguchi, Hiroki Nishikawa, and Kana Shimada
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020203 distributed computing ,Computer science ,Distributed computing ,02 engineering and technology ,Energy consumption ,Fork–join queue ,020202 computer hardware & architecture ,Scheduling (computing) ,Energy aware scheduling ,0202 electrical engineering, electronic engineering, information engineering ,Computer Science (miscellaneous) ,Constraint programming ,Minification ,Engineering (miscellaneous) - Abstract
This paper proposes an energy-aware scheduling of malleable fork-join (MFJ) tasks on heterogeneous multicores. This work allows a task to be split into multiple sub-tasks for fork-join parallel execution. The number of the sub-tasks is determined simultaneously with scheduling. Our scheduling technique aims at the minimization of energy consumption under a deadline constraint. In addition, this paper proposes a technique for simultaneous scheduling and core-type optimization. The technique optimally decides types of cores (to be either "big" or "little") at the same time as MFJ task scheduling in order to further reduce energy consumption.
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- 2019
196. Transition in the etiology of liver cirrhosis in Japan: a nationwide survey
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Akinobu Takaki, Kohichiroh Yasui, Tatsuya Kanto, Akio Ido, Hiroki Nishikawa, Yoichi Hiasa, Yasuhiro Takikawa, Makiko Taniai, Toru Ishikawa, Masayuki Kurosaki, Yoshiyuki Ueno, Koichi Takaguchi, Shuhei Nishiguchi, Shuhei Hige, and Hirayuki Enomoto
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Liver Cirrhosis ,Male ,Nonalcoholic steatohepatitis ,medicine.medical_specialty ,Cirrhosis ,Etiology ,Disease ,Nationwide survey ,Gastroenterology ,Japan ,Non-alcoholic Fatty Liver Disease ,Surveys and Questionnaires ,Internal medicine ,Humans ,Medicine ,Viral hepatitis ,Liver Diseases, Alcoholic ,Aged ,Original Article—Liver, Pancreas, and Biliary Tract ,business.industry ,Middle Aged ,Hepatology ,Hepatitis B ,medicine.disease ,Hepatitis C ,Female ,business ,Abdominal surgery - Abstract
Background To assess the recent real-world changes in the etiologies of liver cirrhosis (LC) in Japan, we conducted a nationwide survey in the annual meeting of the Japan Society of Hepatology (JSH). Methods We investigated the etiologies of LC patients accumulated from 68 participants in 79 institutions (N = 48,621). We next assessed changing trends in the etiologies of LC by analyzing cases in which the year of diagnosis was available (N = 45,834). We further evaluated the transition in the real number of newly identified LC patients by assessing data from 36 hospitals with complete datasets for 2008–2016 (N = 18,358). Results In the overall data, HCV infection (48.2%) was the leading cause of LC in Japan, and HBV infection (11.5%) was the third-most common cause. Regarding the transition in the etiologies of LC, the contribution of viral hepatitis-related LC dropped from 73.4 to 49.7%. Among the non-viral etiologies, alcoholic-related disease (ALD) and nonalcoholic steatohepatitis (NASH)-related LC showed a notable increase (from 13.7 to 24.9% and from 2.0 to 9.1%, respectively). Regarding the real numbers of newly diagnosed patients from 2008 to 2016, the numbers of patients with viral hepatitis-related LC decreased, while the numbers of patients with non-viral LC increased. Conclusions HCV has remained the main cause of LC in Japan; however, the contribution of viral hepatitis as an etiology of LC is suggested to have been decreasing. In addition, non-viral LC, such as ALD-related LC and NASH-related LC, is suggested to have increased as etiologies of LC in Japan.
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- 2019
197. Liver fibrosis markers as assessed by ultrasound elastography and serum samples: A large comparative study in hepatitis virus B and C liver diseases
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Tomoyuki Takashima, Hiroki Nishikawa, Yoshiyuki Sakai, Chikage Nakano, Nobuhiro Aizawa, Kunihiro Hasegawa, Seiichi Hirota, Takashi Nishimura, Reiichiro Kondo, Ryo Takata, Yoshinori Iwata, Jiro Fujimoto, Kazunori Yoh, Tomoko Aoki, Hirohisa Yano, Hiroko Iijima, Masayoshi Kage, Hirayuki Enomoto, Noriko Ishii, Shuhei Nishiguchi, Naoto Ikeda, and Yukihisa Yuri
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Hepatitis virus ,medicine.medical_specialty ,Hepatology ,business.industry ,Liver fibrosis ,Serum samples ,Gastroenterology ,03 medical and health sciences ,0302 clinical medicine ,Infectious Diseases ,Chronic hepatitis ,Collagen fiber ,030220 oncology & carcinogenesis ,Internal medicine ,Cohort ,medicine ,Ultrasound elastography ,030211 gastroenterology & hepatology ,business ,Pathological - Abstract
AIM We aimed to compare the well-established liver fibrosis (LF) markers in Japanese patients with chronic hepatitis B (CHB, n = 331) and chronic hepatitis C (CHC, n = 886) and to discuss possible causes of differences in results between CHB patients and CHC patients. METHODS Virtual touch quantification (VTQ) in acoustic radiation force impulse, Fibrosis-4 (Fib-4) index, aspartate aminotransferase to platelet ratio index (APRI), and hyaluronic acid (HA) were compared between the two cohorts. As an additional investigation, total collagen proportional area (TCPA, %) was tested using liver pathological samples (n = 83). RESULTS Significant LF (F2 or greater) and advanced LF (F3 or greater) were identified in 153 (46.2%) and 76 (23.0%) patients in the CHB cohort and 579 (65.3%) and 396 (44.7%) patients in the CHC cohort. The median VTQ, Fib-4 index, APRI, and HA values in the CHB cohort were 1.20 m/s, 1.36, 0.44, and 25 ng/mL; those in the CHC cohort were 1.32 m/s, 2.60, 0.74, and 65.5 ng/mL (P-values, all
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- 2019
198. Comparison of liver stiffness assessment by transient elastography and shear wave elastography using six ultrasound devices
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Takashi Nishimura, Tomoko Aoki, Natsuko Kobayashi, Seiichi Hirota, Tomoyuki Takashima, Hiroko Iijima, Yoshi-Hiro Ide, Nobuhiro Aizawa, Yoshinori Iwata, Akio Ishii, Hiroki Nishikawa, Shuhei Nishiguchi, Yoshiyuki Sakai, Masahiro Yoshida, Chikage Nakano, Toshifumi Tada, Hirayuki Enomoto, Takashi Kumada, Naoto Ikeda, and Jiro Fujimoto
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Cirrhosis ,Hepatology ,Receiver operating characteristic ,medicine.diagnostic_test ,business.industry ,Ultrasound ,Gold standard (test) ,medicine.disease ,Chronic liver disease ,03 medical and health sciences ,0302 clinical medicine ,Infectious Diseases ,030220 oncology & carcinogenesis ,Liver biopsy ,medicine ,030211 gastroenterology & hepatology ,Elastography ,Transient elastography ,Nuclear medicine ,business - Abstract
AIM Transient elastography (TE) is the gold standard for measurement of liver stiffness. The usefulness of shear wave elastographies (SWE) is well accepted. However, the measurement values cannot be equivalently compared because cut-off values for the diagnosis of liver fibrosis are different among those devices. We aimed to clarify correlations, to generate the regression equations between TE and SWEs, and to compare the diagnostic ability of each device to diagnose liver fibrosis. METHODS A total of 109 patients with chronic liver disease who underwent liver biopsy and same-day evaluation of liver stiffness using six ultrasound devices were analyzed. The diagnostic ability of liver stiffness from each ultrasound device and correlations between TE and each SWE were analyzed. RESULTS Liver stiffness measured by all six ultrasound devices increased significantly as liver fibrosis stage advanced (P
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- 2019
199. A Constraint Programming Approach to Scheduling of Malleable Tasks
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Ittetsu Taniguchi, Hiroki Nishikawa, Kana Shimada, and Hiroyuki Tomiyama
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020203 distributed computing ,Multi-core processor ,Exploit ,Computer science ,0102 computer and information sciences ,02 engineering and technology ,Parallel computing ,Directed acyclic graph ,01 natural sciences ,Scheduling (computing) ,010201 computation theory & mathematics ,Homogeneous ,0202 electrical engineering, electronic engineering, information engineering ,Constraint programming ,Integer programming - Abstract
With the increasing demand for high-performance computing, multicore architectures became appealing in various application domains. In order to exploit the parallelism of the multicore architectures, task scheduling has become more important than ever. Classical multicore task scheduling assumes that each task is executed on one of the cores. However, many tasks in modern applications have inherent parallelism and can be multi-threaded. A task is partitioned into threads which can be executed on multiple cores in a fork-join fashion. A multi-threaded task is called malleable if the number of threads is flexible and is determined at the same time as task scheduling. This paper proposes multicore scheduling methods for malleable tasks. Given a set of dependent tasks in the form of directed acyclic graph and homogeneous multiple cores, the proposed methods decide the number of threads for each task and schedule the threads on the multicores simultaneously, with the goal of minimizing the overall schedule length. The proposed scheduling methods are based on constraint programming. Experimental results show that the proposed methods outperform state-of-the-art work which is based on integer linear programming.
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- 2019
200. Dysbiosis and liver diseases (Review)
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Hiroki Nishikawa, Keisuke Yokohama, Shinya Fukunishi, Hideko Ohama, Akira Asai, Shuhei Nishiguchi, and Kazuhide Higuchi
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Hepatitis ,Alcoholic liver disease ,Cirrhosis ,Liver Diseases ,Fatty liver ,General Medicine ,Biology ,Gut flora ,medicine.disease ,biology.organism_classification ,digestive system ,Gastrointestinal Microbiome ,Liver disease ,Liver ,Immunology ,Genetics ,medicine ,Disease Progression ,Animals ,Dysbiosis ,Humans ,Steatohepatitis - Abstract
Dysbiosis, a qualitative and quantitative aberrancy of gut microbiota, has attracted marked attention. At present, advances in molecular biological techniques have made it possible to analyze gut microbiota at the DNA and RNA levels without culturing, and methods such as 16S ribosomal RNA targeting analysis and metagenomic analysis using next‑generation sequencers have been developed. The relationship between gut microbiota and various diseases has been extensively examined. Gut microbiota are essential for the immune system, energy intake and fat storage, and humans use them to build complex immune regulatory mechanisms and to obtain energy from food. The liver is the first organ to be nourished by the portal blood flow of intestinal origin, and liver diseases can be strongly influenced by various factors of intestinal origin, such as intestinal bacteria, bacterial components, and intestinal bacterial metabolites. Rigorous research has revealed that the composition of the gut microbiota is altered and the diversity of bacteria is reduced in liver diseases. Significance of various factors transported to the liver by portal vein blood flow from the intestine has been extensively investigated. Gut microbiota in liver disease can be associated with disease progression regardless of disease etiology and even with carcinogenesis. The relationship between gut microbiota and liver diseases (hepatitis virus‑related diseases, autoimmune liver diseases, alcoholic liver disease, non‑alcoholic fatty liver disease, non‑alcoholic steatohepatitis, liver cirrhosis and hepatocellular carcinoma) and the treatments of dysbiosis (antibiotics, prebiotics, probiotics and fecal microbiota transplantation) in liver disease are outlined based on the current evidence.
- Published
- 2021
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