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Lim, Soo,Shin, Hayley,Song, Jung Han,Kwak, Soo Heon,Kang, Seon Mee,Won Yoon, Ji,Choi, Sung Hee,Cho, Sung Il,Park, Kyong Soo,Lee, Hong Kyu,Jang, Hak Chul,Koh, Kwang Kon American Diabetes Association 2011 Diabetes care Vol.34 No.6
<P><B>OBJECTIVE</B></P><P>The number of people with metabolic syndrome is increasing worldwide, and changes in socioenvironmental factors contribute to this increase. Therefore, investigation of changes in metabolic syndrome and its components in South Korea, where rapid socioenvironmental changes have occurred in recent years, would be foundational in setting up an effective strategy for reducing this increasing trend.</P><P><B>RESEARCH DESIGN AND METHODS</B></P><P>We compared the prevalence and pattern of metabolic syndrome among participants in the Korean National Health and Nutrition Examination Surveys for 1998, 2001, 2005, and 2007. In each survey, stratified, multistage, probability–sampling designs and weighting adjustments were conducted to represent the entire Korean population. The revised National Cholesterol Education Program criteria were used as the definition of metabolic syndrome. All biochemical parameters were measured in a central laboratory.</P><P><B>RESULTS</B></P><P>A total of 6,907 (mean ± SE age 45.0 ± 0.2 years), 4,536 (45.5 ± 0.2), 5,373 (47.1 ± 0.2), and 2,890 (49.9 ± 0.3) Koreans over 20 years of age have participated in the studies in 1998, 2001, 2005, and 2007, respectively. The age-adjusted prevalence of metabolic syndrome increased significantly from 24.9% in 1998, 29.2% in 2001, and 30.4% in 2005 to 31.3% in 2007. Among the five components, the level of low HDL cholesterol increased the most, by 13.8% over the 10 years. Abdominal obesity and hypertriglyceridemia followed, with 8.7 and 4.9% increases, respectively.</P><P><B>CONCLUSIONS</B></P><P>Because dyslipidemia and abdominal obesity were major factors in increasing the prevalence of metabolic syndrome in Koreans for the past 10 years, lifestyle interventions should be conducted at the national level to reduce the burden and consequences of metabolic syndrome.</P>
Lim, Tae-Gyu,Lee, Sung-Young,Duan, Zhaoheng,Lee, Mee-Hyun,Chen, Hanyong,Liu, Fangfang,Liu, Kangdong,Jung, Sung Keun,Kim, Dong Joon,Bode, Ann M.,Lee, Ki Won,Dong, Zigang AMERICAN ASSOCIATION FOR CANCER RESEARCH INC 2017 CANCER PREVENTION RESEARCH Vol.10 No.5
<P>Intake of soy isoflavones is inversely associated with the risk of esophageal cancer. Numerous experimental results have supported the anticancer activity of soy isoflavones. This study aimed to determine the anti-esophageal cancer activity of 6,7,4'-trihydroxyisoflavone (6,7,4'-THIF), a major metabolite of daidzein, which is readily metabolized in the human body. Notably, 6,7,4'-THIF inhibited proliferation and increased apoptosis of esophageal cancer cells. On the basis of a virtual screening analysis, Pin1 was identified as a target protein of 6,7,4'-THIF. Pull-down assay results using 6,7,4'-THIF Sepharose 4B beads showed a direct interaction between 6,7,4'-THIF and the Pin1 protein. Pin1 is a critical therapeutic and preventive target in esophageal cancer because of its positive regulation of beta-catenin and cyclin D1. The 6,7,4'-THIF compound simultaneously reduced Pin1 isomerase activity and the downstream activation targets of Pin1. The specific inhibitory activity of 6,7,4'-THIF was analyzed using Neu/Pin1 wild-type (WT) and Neu/Pin1 knockout (KO) MEFs. 6,7,4'-THIF effected Neu/Pin1 WT MEFs, but not Neu/Pin1 KO MEFs. Furthermore, the results of a xenograft assay using Neu/Pin1 WT and KO MEFs were similar to those obtained from the in vitro assay. Overall, we found that 6,7,4'-THIF specifically reduced Pin1 activity in esophageal cancer models. Importantly, 6,7,4'-THIF directly bound to Pin1 but not FKBP or cyclophilin A, the same family of proteins. Because Pin1 acts like an oncogene by modulating various carcinogenesis-related proteins, this study might at least partially explain the underlying mechanism(s) of the anti-esophageal cancer effects of soy isoflavones. (C) 2017 AACR.</P>
Lim, Sung-Mee,Im, Dong-Soon The Korean Society of Food Hygiene and Safety 2007 한국식품위생안전성학회지 Vol.22 No.3
동치미로부터 분리한 유산균 (68 균주) 중 Escherichia coli O157에 대한 항균 효과를 나타내는 균주는 Lactobacillus plantarum K11로 동정되었다. 분리균주 La. piantarum K11이 생산한 박테리오신의 항균 활성은 대수증식기 후반부에 12,800 BU/mL로 최대 활성에 이르렀다. 항균 활성은 pepsin, protease, proteinase K, papain, chymotrypsin 및 trypsin 처리에 의해 완전히 소실되었으나, catalase, ${\alpha}-amylase$, lysozyme 및 lipase에 의해서는 영향을 받지 않았으므로 단백질성 물질임을 확인하였다. 게다가, 이 활성은 pH 3.0-9.0의 조건하에서나 -20, 4 및 $25^{\circ}C$에서 30일간의 저장 동안에도 안정하였다. 또한 $100^{\circ}C$에서 30분간 가열처리에도 비교적 안정한 편이었고, chloroform이나 hexane 처리에도 활성에 변함이 없었다. 분리 균주의 박테리오신은 Bacillus spp., Listeria spp. 및 Staphylococcus spp. 등의 일부 식중독균의 억제효과는 나타나지 않았으나, Enterobacter aerogenes와 E. coli 등의 장내세균의 억제에는 효과적이었으며, 특히 640 BU/mL의 박테리오신 처리에 의해서 10시간 배양만에 E. coli O157이 완전하게 사멸되었다. Among 68 strains of lactic acid bacteria (LAB) isolated from Dongchimi, a strain K11 was selected due to its bactericidal activity against Escherichia coli O157 The strain K11 was identified as Lactobacillus plantarum, based on physiological and biochemical characteristics. In the late exponential phase, La. plantarum K11 showed maximum bacteriocin activity (12,800 BU/mL) and maintained until the early stationary phase. The bacteriocin activity was completely inactivated by all the proteolytic enzymes such as pepsin, protease, proteinase K, papain, chymotrypsin, and trypsin, but the activity was not affected by catalase, a-amylase, lysozyme, and lipase, suggesting proteinaceous nature of the bacteriocin. Additionally, this activity was not affected in the pH range from 3.0 to 9.0 and under storage conditions like 30 days at -20,4, or $25^{\circ}C$. Although the bacteriocin activity was absolutely lost after 15 min treatment at 121, it was relatively stable at $70^{\circ}C$ for 60 min or $100^{\circ}C$ for 30 min. The activity was disappeared by treatment with acetone, benzene, ethanol, or methanol, but it was not affected by treatment with chloroform or hexane. The antibacterial activity of the bacteriocin was good against some LAB including Lactobacillus spp., Enterococcus spp., and Streptococcus spp., but not against food-borne pathogens such as Bacillus spp., Listeria spp., and Staphylococcus spp. as well as yeasts and molds. Especially, some intestinal bacteria such as Enterobacter aerogenes and E. coli were significantly affected by the bacteriocin of La, plantarum K11. Furthermore, the addition of 640 BU/mL resulted in the complete clearance of E. coli O157 after 10 hr.
Lim, Soo,Shin, Hayley,Kim, Min Ju,Ahn, Hwa Young,Kang, Seon Mee,Yoon, Ji Won,Choi, Sung Hee,Kim, Ki Woong,Song, Jung Han,Choi, Sang Il,Chun, Eun Ju,Shin, Chan Soo,Park, Kyong Soo,Jang, Hak Chul Issued for the Endocrine Society by the Williams W 2012 The Journal of clinical endocrinology & metabolism Vol.97 No.1
<P>Recent studies suggest an association between vitamin D activity and cardiometabolic risk.</P>
( Sung Mee Lim ),( Dong Hyun Ahn ) 한국미생물 · 생명공학회 2012 Journal of microbiology and biotechnology Vol.22 No.12
In this study, seven strains isolated from mustard leaf kimchi were screened for their tolerance to simulated gastric and bile juices, the adhesive properties to Caco-2 cells, and the inhibition ability of Salmonella Typhimurium ATCC 29631 adhesion. Lactobacillus acidophilus GK20, Lactobacillus paracasei GK74, and Lactobacillus plantarum GK81, which were resistant to bile as well as gastric juices, possessed high bile-salt hydrolase (BSH) activity towards both sodium glycocholate and sodium taurocholate. The strongest in vitro adherence of 53.96 ± 4.49% was exhibited by L. plantarum GK81 followed by L. acidophilus GK20 with adhesion levels of 40.72 ± 9.46%. The adhesion of these strains was significantly (p < 0.05) reduced after exposure to pepsin and heating for 30 min at 80oC. Addition of Ca2+ led to a significant (p < 0.05) increase of the adhesion of L. acidophilus GK20, but the adhesion ability of L. plantarum GK81 was not different from the control by the addition of calcium. In the competition and exclusion experiment, the adhesion inhibition of S. Typhimurium by L. plantarum GK81 strain was much higher than the other strains. Moreover, the exclusion inhibition of S. Typhimurium by L. acidophilus GK20 was considerably high, although the inhibition activity of this strain was lower than L. plantarum GK81.
Effects of Proton on Lysolipid-induced Actions in OGR1-subfamily GPCRs
( Sung Mee Lim ),( Dong Soon Im ) 한국응용약물학회 2007 Biomolecules & Therapeutics(구 응용약물학회지) Vol.15 No.1
Lysolipids such as lysophosphatidylcholine (LPC), sphingosylphosphorylcholine (SPC), galactosyl-sphingosine (psychosine) have been matched as ligands for OGRI-subfamily G-protein-coupled receptors (GPCR), consisted of OGRl, GPR4, G2A, and TDAG8. Recently, those members of GPCRs have been reported as proton-sensing GPCRs. We used Jurkat T cells, which express four members of OGRI subfamily GPCRs endogenously to investigate effects of proton on lysolipid-induced several cellular events. We found no significant effect of proton on the lysolipid-induced Ca2+ increase and ROS production in Jurkat T cells. Further investigation is necessary to clarify the relationship of lysolipid and proton on the OGRI-subfamily GPCRs.
Lim, Kyu,Song, Hea-Jeong,Byun, Sang-Hyun,Yun, Kyung-Ah,Son, Mee-Young,Park, Jong-Il,Kweon, Gi-Ryang,Yoon, Wan-Hee,Hwang, Byung-Doo 충남대학교 생물공학연구소 1999 생물공학연구지 Vol.7 No.-
Epidermal growth factor (EGF) is a potent mitogen for rat hepatocytes and mammalian histone synthesis is functionally and temporally coupled to DNA replication. To gain an insight on the role of EGF in the regulation of H2B histone gene expression in primary hepatocyte cultures, the binding patterns of nuclear proteins to various elements in the H2B histone gene upstream region have been investigated. EGF induced H2B histone mRNA with maximal stimulation reached at 36 hours. The induction of H2B histone mRNA was dependent on the concentration of EGF and almost reduced by actinomycin-D pretreatment. In DNaseⅠ footprinting analysis, one nuclear factor (TATA element-binding protein, TBP) bound at -20 bp (TATA element) in either the absence or presence of EGF. One DNA-protein complex was formed by DNA mobility shift assay when TATA element was incubated with nuclear extract prepared from EGF-free hepatocytes, and the amount of TBP was increased after EGF treatment. These results suggest that TBP may be correlated with with transcriptional regulation of H2B histone gene by EGF in primary hepatocytes.
Evaluation of the Neurological Safety of Epidural Milnacipran in Rats
Lim, Seung-Mo,Shin, Mee-Ran,Kang, Kyung-Ho,Kang, Hyun,Nahm, Francis Sahn-Gun,Kim, Baek-Hui,Shin, Hwa-Yong,Lim, Young-Jin,Lee, Sang-Chul The Korean Pain Society 2012 The Korean Journal of Pain Vol.25 No.4
Background: Milnacipran is a balanced serotonin norepinephrine reuptake inhibitor with minimal side effects and broad safety margin. It acts primarily on the descending inhibitory pain pathway in brain and spinal cord. In many animal studies, intrathecal administration of milnacipran is effective in neuropathic pain management. However, there is no study for the neurological safety of milnacipran when it is administered neuraxially. This study examined the neurotoxicity of epidural milnacipran by observing behavioral and sensory-motor changes with histopathological examinations of spinal cords in rats. Methods: Sixty rats were divided into 3 groups, with each group receiving epidural administration of either 0.3 ml (3 mg) of milnacipran (group M, n = 20), 0.3 ml of 40% alcohol (group A, n = 20), or 0.3 ml of normal saline (group S, n = 20). Results: There were no abnormal changes in the behavioral, sensory-motor, or histopathological findings in all rats of groups M and S over a 3-week observation period, whereas all rats in group A had abnormal changes. Conclusions: Based on these findings, the direct epidural administration of milnacipran in rats did not present any evidence of neurotoxicity in behavioral, sensory-motor and histopathological evaluations.