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( Sayuri Yamamoto ),( Yurika Kawamura ),( Kazuhiro Yamamoto ),( Yoshiharu Yamaguchi ),( Yasuhiro Tamura ),( Shinya Izawa ),( Hiroaki Nakagawa ),( Yoshinori Wakita ),( Yasutaka Hijikata ),( Masahide Eb 대한소화기기능성질환·운동학회 2021 Journal of Neurogastroenterology and Motility (JNM Vol.27 No.4
Background/Aims Chronic constipation and lifestyle factors can affect sleep quality. We evaluated the relationship between chronic constipation and sleep in the Japanese population. Methods This cross-sectional internet-based survey included 3000 subjects with constipation, classified according to sleep status (good/poor). Primary endpoints were Bristol stool form scale (BSFS) score and correlations between sleep disorder criteria of the Pittsburgh Sleep Quality Index (PSQI) and sleep status (good/poor sleep). Secondary endpoints included correlations between quality of life (QOL) and mood, medical, lifestyle, and sleep factors. Results The proportion of participants with BSFS category 4 (normal stool) was significantly higher in the good sleep group (P < 0.001). Sleep disturbance (P < 0.05), sleep quality, and duration, use of hypnotic medication, and daytime dysfunction of PSQI (all P < 0.001) significantly correlated with poor sleep. In the poor sleep group, QOL was significantly worse and anxiety and depression levels were significantly higher (all P < 0.001) compared with the good sleep group. Anemia and smoking (both P < 0.05), recent body weight increases, and poor eating habits (all P < 0.001) were significantly higher in the poor sleep group. Male sex, onset associated with change in frequency of stools, sensation of incomplete evacuation for at least 25% of defecations, and manual maneuvers to facilitate at least 25% of defecations correlated with poor sleep. Conclusions Subjects with constipation and poor sleep experienced severe symptoms and had poor QOL. These data support the need for a multifocal treatment approach, including lifestyle advice and pharmacotherapy. (J Neurogastroenterol Motil 2021;27:602-611)
( Tatsuya Hayashi ),( Satoshi Saitoh ),( Kei Fukuzawa ),( Yoshinori Tsuji ),( Junji Takahashi ),( Yusuke Kawamura ),( Norio Akuta ),( Masahiro Kobayashi ),( Kenji Ikeda ),( Takeshi Fujii ),( Tosiaki M 대한간학회 2017 Gut and Liver Vol.11 No.5
Background/Aims: Noninvasive liver fibrosis evaluation was performed in patients with nonalcoholic fatty liver disease (NAFLD). We used a quantitative method based on the he-patic volume acquired from gadoxetate disodium-enhanced (Gd-EOB-DTPA-enhanced) magnetic resonance imaging (MRI) for diagnosing advanced fibrosis in patients with NAFLD. Methods: A total of 130 patients who were diagnosed with NAFLD and underwent Gd-EOB-DTPA-enhanced MRI were retrospectively included. Histological data were available for 118 patients. Hepatic volumetric parameters, including the left hepatic lobe to right hepatic lobe volume ratio (L/R ratio), were measured. The usefulness of the L/R ratio for diag-nosing fibrosis ≥F3-4 and F4 was assessed using the area under the receiver operating characteristic (AUROC) curve. Multiple regression analysis was performed to identify vari-ables (age, body mass index, serum fibrosis markers, and histological features) that were associated with the L/R ratio. Results: The L/R ratio demonstrated good performance in differentiating advanced fibrosis (AUROC, 0.80; 95% confi-dence interval, 0.72 to 0.88) from cirrhosis (AUROC, 0.87; 95% confidence interval, 0.75 to 0.99). Multiple regression analysis showed that only fibrosis was significantly associat-ed with the L/R ratio (coefficient, 0.121; p<0.0001). Conclu-sions: The L/R ratio, which is not influenced by pathologi-cal parameters other than fibrosis, is useful for diagnosing cirrhosis in patients with NAFLD. (Gut Liver 2017;11:674- 683)
Lee, Young-Tae,Seon, Hee-Don,Kawamura, Akihisa,Matsumoto, Yoshinori,Ishida, Makoto,Nakamura, Tetsuro 경북대학교 센서기술연구소 1994 센서技術學術大會論文集 Vol.5 No.1
In order to reduce the offset and its temperature drift by the different properties of the piezoresistors and the residual stress of the piezoresistive pressure sensor, a double Wheatstone-bridge pressure sensor was studied. Because the compensation bridge was arranged near by the pressure sensitive bridge, which have the similar offset components, reduction of the offset and its temperature drift was realized by the mathematical subtraction of the output of the two bridges. It was confirmed the compensation of the offset and its temperature drift. By this compensation method, the offset and its temperature drift were reduced approximately 94% and 70%, respectively. The sensitivity of the fabricated pressure sensor was 11.7 mV/V kgfcm^(-2) for 0.9 kgfcm^(-2) full-scale pressure range.