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장귀련(Gui Lyen Jang),정진영(Jin Young Chung),김원근(Won Kun Kim),김교선(Koy Sun Kim),김중구(Joong Gu Kim),김용진(Yong Jin Kim),박봉기(Bong Ki Park),황석순(Suk Soon Hwang),강문규(Moon Kyu Kang) 대한내과학회 1989 대한내과학회지 Vol.37 No.3
N/A We studied 12 cases of gastric anisakiasis who contacted the Dept. of Internal Medicine of St. Mary's Hospital and Sun Rin Hospital, Pohang, from March 1986 to Feb. 1989 and were confirmed by gastrofiberscopic findings and removal of larva of Anisakis. Our analysis gave the following results: 1) Of 12 cases, the sex ratio was 1 to 1,4 (male to female) and the 40s age group was most common, followed by the 30s, the 20s and 60s, in order of frequency. 2) In terms of seasonal incidence, May to July showed 6 cases (50%). Among causative fish, Astroconcer myriaster caused 6 cases (50%) and showed highest freguency. 3) The most common symptoms when the patients contacted the hospital were epigastric pain in 9 cases (75%) followed by nausea, epigastric fullness, and vomiting in order of frequency. 4) The onset of symptoms in 8 cases (66.7%) was within 6 hours since ingestion of those fish. 5) Six cases (50%) underwent gastrofiberscopic exam within 24 hours of onset of symptoms. 6) The most commonly involved site of the stomach was the anterior wall of the mid body (4 cases). The gastrofiberscopic findings were, in frequency of incidence, normal mucosa with larva (5 cases), erosion, hyperemia, mucosal thickening, petechia and ulceration. 7) We performed a biopsy in 4 among 12 cases, and the microscopic findings of the gastric mucosa were congestion and edema, broadening of the foveolar ridge and inflammatory cell infiltration, especially eosinophils and lymphocytes. The antral mucosa revealed findings of chronic superficial gastritis and small fragmental necrotic debris was seen along the surface of the mucosa. Early gastroscopic examination may be very useful in the diagnosis and treatment of anisakiasis if anisakiasis is clinically suspected, In addition, the general public should be enlightened that ocean fish are not necessarily safe when they are eaten a raw and a more detailed epidemiologic study should be conducted for anisakiasis.
Triterpenoid Saponins from the Seeds of Caragana microphylla
Gui-Lin Jin,Cheng-Jian Zheng,Wen-Bo Xin,Zhu-Jun Mao,Pei-Xin Sun,Zhi-Xin Zeng,Lu-Ping Qin 대한약학회 2011 Archives of Pharmacal Research Vol.34 No.6
Two new triterpenoid saponins, namely caraganoside C (1) and caraganoside D (2), were isolated from the seeds of Caragana microphylla. Their structures were elucidated on the basis of spectroscopic analyses, including homo- and hetero-nuclear correlation NMR experiments (COSY, HSQC and HMBC). Both 1 and 2 exhibited moderate inhibitory activity against NO production in LPS-stimulated RAW264.7 cells with IC_50 values of 26.4 μM and 32.2 μM, respectively. In addition, 1 showed weak cytotoxicity against MCF-7, HL-60, HCT116, and A549 cell lines.
Development of Toxoplasma gondii Chinese I genotype Wh6 Strain in Cat Intestinal Epithelial Cells
Gui-Hua Zhao,Lixin Zhang,Lisha Dai,Haozhi Xu,Chao Xu,Ting Xiao,Jin Li,Hui Sun,Beibei Zhou,Kun Yin 대한기생충학ㆍ열대의학회 2022 The Korean Journal of Parasitology Vol.60 No.4
Felids are the unique definitive host of Toxoplasma gondii. The intestine of felid is the only site for initiating Toxoplasma gondii sexual reproduction. T. gondii excretes millions of infectious oocysts from the intestine, which are the primary source of infection. There are many difficulties in developing vaccines and drugs to control oocyst excretion due to the lack of an appropriate experimental model. Here, we established an in vitro feline intestinal epithelial cell (IEC) infection system and an efficient animal model of T. gondii Chinese 1 genotype, Wh6 strain (TgCtwh6). The Kunming mice brain tissues containing TgCtwh6 cysts were harvested 42-day post-infection. The bradyzoites were co-cultured with cat IECs in vitro at a ratio of 1:10. Five 3-month-old domestic cats were orally inoculated with 600 cysts each. The oocysts were detected by daily observation of cat feces by microscopy and polymerase chain reaction. We found that the parasite adhered and invaded cat IECs in vitro, transformed into tachyzoites, and then divided to form rose-like structures. These parasites eventually destroyed host cells, escaped, and finished the asexual reproduction process. Schizonts associated with sexual reproduction have not been observed during development in vitro cultured cells. However, schizonts were detected in all infected cat intestinal epithelial cells, and oocysts were presented in all cat feces. Our study provides a feasible cell model and an efficient infection system for the following studies of T. gondii sexual reproduction, and also lays a foundation to develop drugs and vaccines for blocking excretion and transmission of oocysts.
Magnesium sulfate가 저산소 상태에서 세포영양막의 Caspase-3와 Caspase-9의 발현에 미치는 영향
이귀세라 ( Gui Se Ra Lee ),김사진 ( Sa Jin Kim ),허민 ( Min Hur ),박상희 ( Sang Hi Park ),이희진 ( Hee Jin Lee ),이원선 ( Weon Sun Lee ),신종철 ( Jong Chul Shin ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.3
Objective : To determine the effect of magnesium sulfate (MgSO4) on the expression of caspase-3 and caspase-9 of cytotrophoblasts in vitro under normal and hypoxic condition as assessed immunoblot analyses. Methods : Normal cytotrophoblasts were isolated
Prediction of Maximal Oxygen Uptake in Korean Students
Park, Kea-Sun,Jin, Young-Soo,Lim, Wan-Gui,Lee, Byung-Kun 한국체육무용국제교류학회 1995 한국체육무용국제교류학회지 Vol.1 No.-
The purpose of this study was to produce regression equation of V'O_2 max prediction equations for Korean students, and to evaluate the validity of their prediction equations. The equations of V'O_2 max(1/min, ml/kg/min and ml/FFW/min) were obtained by multiple regression procedures from a sample of 106 students(M: 53, F: 53), aged 7-17 years. The prediction for V'O2 max were obtained from the subjects' age, height, weight, %fat and fat-free weight. ◁표 삽입 ▷ (원문을 참조하세요) The validity of prediction equations was tested from the validity group(36). The validity is 0.36-0.51 for V'O_2 max. % errors is -0.8-11.7%. Its indicated that reasonably and accurate estimate of V'O_2 max for Korean students may be obtained from their age, height, weight, %fat and fat-free weight.
Antibacterial characteristics of glycinin basic polypeptide against Staphylococcus aureus
Yang, Jie,Sun, Gui-Jin,Li, Ying-Qiu,Cui, Kai-Yu,Mo, Hai Zhen 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.5
This paper aims to study the antibacterial action of glycinin basic polypeptide (GBP) on Staphylococcus aureus (S. aureus). Herein, the minimum inhibitory concentration (MIC) of GBP against S. aureus was 0.2 mg/mL. Atomic force microscopy (AFM) imaging showed that GBP seriously damaged the morphology of the S. aureus cells. GBP (0.8 mg/mL) enhanced the relative release of ${\beta}$-galactosidase to 25.48% when compared to the control. The activity of the respiratory-chain dehydrogenase of S. aureus decreased with increasing GBP concentration. GBP could cause a leakage of intracellular substances. Additionally, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) demonstrated that S. aureus bacterial proteins decreased in response to the time period of treating the bacterial cells with GBP. These results indicate that GBP could remarkably inhibit S. aureus and is, therefore, a potential food preservative.
Jo, Hyun Jin,Sun, Gui Nam,Kim, Eung Soo The Korean Ceramic Society 2016 한국세라믹학회지 Vol.53 No.2
The dependence of the microwave dielectric properties of the glass-ceramic composite $0.9CaMgSi_2O_6-0.1MgSiO_3$ on the crystallization behaviour was investigated as functions of the $TiO_2$ content and heat-treatment temperature. The crystallization behaviour of the specimens was evaluated via a combination of the Rietveld and reference-intensity ratio methods. For specimens with a $TiO_2$ content of up to 1 wt.%, a monoclinic diopside phase was formed, whereas a secondary $TiO_2$ phase was formed with further increases in the $TiO_2$ content. The quality factor (Qf) of the specimens was strongly dependent on the degree of crystallization. The highest Qf value was obtained with a $TiO_2$ content of 0.5 wt.%, which was improved by increasing the heat-treatment temperature. The dielectric constant (K) was affected by the size of the crystallites and the $TiO_2$ content. The temperature coefficient of the resonant frequency (TCF) was nearly constant for all of the specimens, regardless of the $TiO_2$ content or heattreatment temperature.