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Itoh, Shigeru,Fukushima, Yoshimasa,Itoh, Kunihiro,Maeda, Masanori,Mino, Hiroyuki,Kumazaki, Shigeichi Korean Society of Photoscience 2002 Journal of Photosciences Vol.9 No.2
A cyanobacteria-like organism Aaryochloris marina performs oxygenic photosynthesis with near far-red light by the use of chlorophyll d. Reaction center chlorophyll (Chl) of Photosystem (PS) II of A. marina was studied by analysis of millisecond-delayed fluorescence. Delayed fluorescence is emitted by Chi d indicating efficient energy transfer between antenna Chi d molecules and the unknown primary electron donor of PS II. P740 a reaction center Chl of PS I of A. marina is shown to give a dimer type cation, and triplet state with a D value of 245xlO$\^$-4/ cm$\^$-l/ in contrast to the 280-290 xlO$\^$-4/cm$\^$-l/ values of P700 suggesting triplet spins interacting at a 5% larger distance in P740 than in P700.
Hideyuki Tamai,Naoki Shingaki,Yoshiyuki Mori,Kosaku Moribata,Akira Kawashima,Yoshimasa Maeda,Toru Niwa,Hisanobu Deguchi,Izumi Inoue,Takao Maekita,Mikitaka Iguchi,Jun Kato,Masao Ichinose 거트앤리버 소화기연관학회협의회 2016 Gut and Liver Vol.10 No.4
Background/Aims: This study aimed to predict sustained viral response (SVR) to low-dose pegylated interferon (PEGIFN) plus ribavirin of elderly and/or cirrhotic patients with genotype 2 hepatitis C virus (HCV) using viral response within 2 weeks. Methods: Low-dose PEG-IFN-α-2b plus ribavirin was administered to 50 elderly and/or cirrhotic patients with genotype 2 HCV for 24 weeks. The dynamics of HCV RNA and HCV core antigen levels within 2 weeks were measured. Results: The patients’ median age was 66 years. There were 21 male and 29 female patients. The median baseline HCV RNA level was 5.7 log IU/mL. Rapid viral response was achieved in 17 patients (34%), SVR in 28 (56%), and two (4%) discontinued treatment. Univariate analysis of factors contributing to SVR showed significant differences for sex, baseline virus level, and response within 4 weeks. When 40 fmol/L was set as the cutoff value for the core antigen level at 1 week, the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy for predicting SVR were 93%, 75%, 84%, 88%, and 85%, respectively. Conclusions: Low-dose PEG-IFN plus ribavirin was a safe and costeffective treatment for elderly and/or cirrhotic patients with genotype 2 HCV, and the viral response within 2 weeks was a useful predictor of SVR.
Shinya Taki,Takao Maekita,Mayumi Sakata,Kazuhiro Fukatsu,Yoshimasa Maeda,Mikitaka Iguchi,Hidefumi Ito,Masayuki Kitano 대한소화기내시경학회 2019 Clinical Endoscopy Vol.52 No.6
Continuous duodenal levodopa/carbidopa intestinal gel delivery by a gastrostomy infusion system improves control of Parkinson’sdisease. The overall complication rates of percutaneous endoscopic gastrojejunostomy were reported to be 41% and 59% for immediateand delayed adverse events, respectively. A 72-year-old woman underwent percutaneous endoscopic gastrojejunostomy using thedelivery system noted above. Abdominal pain and vomiting occurred 3 months later. Esophagogastroduodenoscopy showed alongitudinal ulcer extending from the lower gastric body to the ileum end, with small intestinal telescoping. Colonoscopy showed alarge bezoar of food residue that was attached around the tip of the tube, reaching the ascending colon, which may have acted as ananchor. Thus, the gastric antrum and small intestine were shortened with telescoping. This complication was resolved by crushing thebezoar with forceps during colonoscopy and can be prevented by consuming a fiber-free diet and periodic exchanges of the tube usingesophagogastroduodenoscopy.