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( Osamu Kawamura ),( Yukie Kohata ),( Noriyuki Kawami ),( Hiroshi Iida ),( Akiyo Kawada ),( Hiroko Hosaka ),( Yasuyuki Shimoyama ),( Shiko Kuribayashi ),( Yasuhiro Fujiwara ),( Katsuhiko Iwakiri ),( M 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2016 Journal of Neurogastroenterology and Motility (JNM Vol.22 No.4
Background/Aims Twenty-four-hour esophageal impedance and pH monitoring allows detection of all types of reflux episodes and is considered the best technique for identifying gastroesophageal refluxes. However, normative data for the Japanese population are lacking. This multicenter study aimed to establish the normal range of 24-hour esophageal impedance and pH data both in the distal and the proximal esophagus in Japanese subjects. Methods Forty-two healthy volunteers (25 men and 17 women) with a mean ± standard deviation age of 33.3 ± 12.4 years (range: 22-72 years) underwent a combined 24-hour esophageal impedance and pH monitoring. According to the physical and pH properties, distal or proximal esophageal reflux events were categorized. Results Median 45 reflux events occurred in 24 hours, and the 95th percentile was 85 events. Unlike previous reports, liquid-containing reflux events are median 25/24 hours with the 95th percentile of 62/24 hours. Acidic reflux events were median 11/24 hours with the 95th percentile of 39/24 hours. Non-acidic gas reflux events were median 15/24 hours with the 95th percentile of 39/24 hours. Proximal reflux events accounted for 80% of the total reflux events and were mainly non-acidic gas refluxes. About 19% of liquid and mixed refluxes reached the proximal esophagus. Conclusions Unlike previous studies, liquid-containing and acidic reflux events may be less frequent in the Japanese population. Non-acidic gas reflux events may be frequent and a cause of frequent proximal reflux events. This study provides important normative data for 24-hour impedance and pH monitoring in both the distal and the proximal esophagus in the Japanese population.
강인호,Osamu Fujiwara 대한전자공학회 1997 電子工學會論文誌, D Vol.d34 No.12
Serious troubles may occur in electromagnetic equipments due to electrostatic discharge (ESD). The number of the damaging incidents are significantly increasing with the increased use of integrated semiconductor elements with loer operation pwoer. In order to examine the phenomena theoretically, this paper anlyzes properties of the transient electromagnetic fields rdiated by ESD. A new model is presented using the Rompe-weizel formula for the spark resistance. The numerical results of ESD fields are compared with the experimental data that were given by wilson-Ma.
( Yasuhiro Fujiwara ),( Masatsugu Okuyama ),( Yasuaki Nagami ),( Koichi Taira ),( Hirotaka Ishizu ),( Osamu Takaishi ),( Hiroshi Sato ),( Toshio Watanabe ) 대한소화기기능성질환·운동학회 2021 Journal of Neurogastroenterology and Motility (JNM Vol.27 No.4
Background/Aims Belching is the act of expelling gas from the stomach or esophagus noisily through the oral cavity. Although it is a physiological phenomenon, belching may also be a symptom of upper gastrointestinal diseases such as reflux esophagitis and functional dyspepsia (FD). A detailed epidemiology of belching has not yet been reported. The aim of this study is to examine the prevalence and clinical characteristics of clinically significant belching (CSB) in adults. Methods We analyzed 1998 subjects who visited the hospital for annual health checkups. Belching was evaluated by a simple question “Do you burp a lot?” and scored as 0 (never), 1 (occasionally), 2 (sometimes), 3 (often), or 4 (always). Subjects with CSB were defined as having scores ≥ 3. We also collected the clinical parameters, endoscopic findings, and data according to the Athens Insomnia Scale, Rome IV questionnaire, and Hospital Anxiety and Depression Scale (HADS). Results Of the 1998 subjects, 121 (6.1%) had CSB. Subjects with CSB had FD more commonly than reflux esophagitis, but presence of heartburn was high (10.7% vs 3.1%). In addition, the HADS and Athens Insomnia Scale scores in subjects with CSB were significantly higher than those in subjects without CSB. Presence of heartburn (OR, 2.07; 95% CI, 1.05-4.09), presence of FD (OR, 2.12; 95% CI, 1.33-3.36), anxiety/depression (OR, 2.29; 95% CI 1.51-3.45), and sleep disturbances (OR, 1.73; 95% CI, 1.14-2.61) were significantly associated with CSB. Conclusion The detailed epidemiology of belching in the general adult population was clarified. (J Neurogastroenterol Motil 2021;27:581-587)
Takeshi Kokubo,Shimpei Wakai,Daisuke Fujiwara,Osamu Kanauchi,Kenta Jounai,Hisahiro Ichikawa,Mihoko Takuma,Yoshihisa Kanaya,Ryohei Shiraoka 한국식품영양과학회 2020 Preventive Nutrition and Food Science Vol.25 No.2
Maintaining employees’ presenteeism is a major issue in the workplace. Simple and convenient methods to improve presenteeism are required. We investigated whether administering the lactic acid bacteria Lactococcus lactis strain Plasma (LC-Plasma) can improve the performance and physical condition of office workers. Subjects were randomly assigned to one of two groups: 1) an intake period (consumption of LC-Plasma-containing yogurt beverage) followed by a non-intake period, or 2) a non-intake period followed by an intake period. Each period lasted 4 weeks and there was a 4-week washout period between each. Assessment was conducted using the World Health Organization Health and Work Performance Questionnaire (HPQ), the Profile of Mood States (POMS) questionnaire and physical condition questionnaires. A total of 153 subjects were analyzed. Absolute presenteeism (as assessed by the HPQ) and vigor (as assessed by POMS) were significantly higher in the intake period than the non-intake period. The subject’s physical health (as assessed by typical common cold symptoms, physical condition, sneezing or runny noses, coughing or sore throats, and lassitude) was also superior during the LC-Plasma intake period. Our results suggest that intake of LC-Plasma for 4 weeks improves work performance through reducing the risk of infection.
Eiji Kondo,Tsutomu Tabata,Nao Suzuki,Daisuke Aoki,Hideaki Yahata,Yoshio Kotera,Osamu Tokuyama,Keiichi Fujiwara,Eizo Kimura,Fumitoshi Terauchi,Toshiyuki Sumi,Aikou Okamoto,Nobuo Yaegashi,Takayuki Enomo 대한부인종양학회 2020 Journal of Gynecologic Oncology Vol.31 No.6
Objective: In this study we sought to investigate the clinical factors that affect post progression survival (PPS) in patients with recurrent or persistent clear cell carcinoma (CCC). We utilized the JGOG3017/Gynecological Cancer InterGroup data to compare paclitaxel pluscarboplatin (TC) and irinotecan plus cisplatin (CPT-P) in the treatment of stages I to IV CCC. Methods: We enrolled 166 patients with recurrent or persistent CCC and assessed the impactof variables, including platinum sensitivity, treatment arm, crossover chemotherapy, primarystage, residual tumor at primary surgery, performance status, ethnicity, and tumor reductionsurgery at recurrence on the median of PPS in patients with recurrent or persistent CCC. Results: A total of 77 patients received TC, and 89 patients received CPT-P. The median PPSfor patients with platinum-resistant disease was 10.9 months, compared with 18.8 monthsfor patients with platinum-sensitive disease (hazard ratio [HR]=1.88; 95% confidence interval[CI]=1.30–2.72; log-rank p<0.001). In the multivariate analysis, the platinum sensitivity(resistant vs. sensitivity; HR=1.60; p=0.027) and primary stage (p=0.009) were identified asindependent predictors of prognosis factors for PPS in recurrent or persistent CCC. Conclusions: Our findings revealed that platinum sensitivity and primary stage are clinicalfactors that significantly affect PPS in patients with recurrent or persistent CCC as well as other histologic subtypes of ovarian cancer. PPS in patients with recurrent CCC shouldestablish the basis for future clinical trials in this population.