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Influence Of Ectomycorrhizal Colonization On Cesium Uptake By Pinus densiflora Seedlings
( Sumika Ogo ),( Takashi Yamanaka ),( Keiko Akama ),( Junko Nagakura ),( Keiko Yamaji ) 한국균학회 2018 Mycobiology Vol.46 No.4
Radionuclides were deposited at forest areas in eastern parts of Japan following the Fukushima Daiichi Nuclear Power Plant incident in March 2011. Ectomycorrhizal (EM) fungi have important effects on radiocaesium dynamics in forest ecosystems. We examined the effect of colonization by the EM fungus Astraeus hygrometricus on the uptake of cesium (Cs) and potassium (K) by Pinus densiflora seedlings. Pine seedlings exhibited enhanced growth after the EM formation due to the colonization by A. hygrometricus. Additionally, the shoot Cs concentration increased after the EM formation when Cs was not added to the medium. This suggests that A. hygrometricus might be able to solubilize Cs fixed to soil particles. Moreover, the shoot K concentration increased significantly after the EM formation when Cs was added. However, there were no significant differences in the root K concentration between EM and non-EM seedlings. These results suggest that different mechanisms control the transfer of Cs and K from the root to the shoot of pine seedlings.
Intraperitoneal inflammation progress the development of endometriosis in mouse model
( Kaoru Keyama ),( Kana Kasai ),( Sumika Matsui ),( Kanako Yoshida ),( Takeshi Kato ),( Minoru Irahara ) 대한산부인과학회 2016 대한산부인과학회 학술대회 Vol.102 No.-
Objective: Previous studies show that the abdomen inflammation advance formation of endometriosis. The aim of this study is to clarify the intraperitoneal inflammation progress the development of endometriosis in mouse model. Methods: We used C57BL/6J female mice in 8 weeks. Oophorectomy was performed to donor mice. Then estradiol (2 μg/day) was injected subcutaneously for 7 days. The endometrium tissue was removed on 8th day. The tissue and flesh blood(100 μl/body) of donor mice was implanted to recipient mice intraperitoneally as a control group. In another group, LPS(100 μg/body) was injected intraperitoneally one day before the implantation. In the other group, the endometrium tissue , flesh blood (100 μl/body) and LPS(100 μg/body) was implanted at the same day. The abdominal cavity was opened in 15th day, then the number of lesion and the greatest dimension was measured. The endometriosis lesion tissue were diagnosed histologically with HE staining. As a next trial, we conducted the analysis of the concentration of inflammatory cytokines in ascites. We injected LPS (50 μg/body) into the abdominal cavity of mice. Then abdominal irrigation was done with saline(1ml) after 2 hours, 6 hours, 1 day, 3 days, 5 days, 7 days and 10 days of injection. The measurement items are TNFα, MIP-2, and IL-6. Results: The endometrial lesions are significantly formed in the mice which was implanted blood, endometrial tissue, and LPS at the same time. TNFα and IL-6 reached the maximum level in 2 hours, and MIP-2 did in 7days after injection. Conclusion: LPS causes inflammation, and it progresses the development of endometriosis.
In vivo 3D Kinematics of Axis of Rotation in Malunited Monteggia Fracture Dislocation
Eugene Kim,Se-Jin Park,Haw-Jae Jeong,Jin Whan Ahn,Hun-Kyu Shin,Jai Hyung Park,Mi Yeon Lee,Murase Tsuyoshi,Ikemototo Sumika,Sugamoto Kazuomi,Young-Min Choi 대한견주관절의학회 2014 대한견주관절학회지 Vol.17 No.1
Background: Normal elbow joint kinematics has been widely studied in cadaver, whilst in vivo study, especially of the forearm, is rare. Our study analyses, in vivo, the kinematics of normal forearm and of malunited forearm using a three-dimensional computerized simulation system. Methods: We examined 8 patients with malunited Monteggia fracture and 4 controls with normal elbow joint. The ulna and radius were reconstructed from CT data placing the forearm in three different positions; full pronation, neutral, and full supination using computer bone models. We analyzed the axis of rotation 3-dimentionally based on the axes during forearm rotation from full pronation to full supination. Results: Axis of rotation of normal forearm was pitch line, with a mean range of 2 mm, from full pronation to full supination, connecting the radial head center proximally and ulnar fovea distally. In normal forearm, the mean range was 1.32 mm at the proximal radioulnar joint and 1.51 mm at the distal radioulnar joint. However in Monteggia fracture patients, this range changed to 7.65 mm at proximal and 4.99 mm at distal radoulnar joint. Conclusions: During forearm rotation, the axis of rotation was constant in normal elbow joint but unstable in malunited Monteggia fracture patients as seen with radial head instability. Therefore, consideration should be given not only to correcting deformity but also to restoring AOR by 3D kinematics analysis before surgical treatment of such fractures.