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Kim, Beom Jin,Kim, Hyun-Soo,Song, Hyun Joo,Chung, Il-Kwun,Kim, Gwang Ha,Kim, Byung-Wook,Shim, Ki-Nam,Jeon, Seong Woo,Jung, Yun Jin,Yang, Chang-Hun,Kim, Ji Hyun,Kim, Tae Ho,Kim, Sang Gyun,Shin, Woon Ge The Korean Academy of Medical Sciences 2016 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.31 No.8
<P>Eradication of <I>Helicobacter pylori</I> using first-line therapy is becoming less effective. Subjects who had been treated for <I>H. pylori</I> infection were prospectively enrolled through an on-line database registry from October 2010 to December 2012. Demographic data, detection methods, treatment indication, regimens, durations, compliance, adverse events, and eradication results for <I>H. pylori</I> infection were collected. Data of 3,700 patients from 34 hospitals were analyzed. The overall eradication rate of the first-line therapy was 73.0%. Eradication failure was significantly associated with old age, concomitant medication, and comorbidity. Regional differences in eradication rates were observed. The most common first-line therapy was proton pump inhibitor-based triple therapy (standard triple therapy, STT) for 7 days (86.8%). The eradication rates varied with regimens, being 73% in STT, 81.8% in bismuth-based quadruple therapy, 100% in sequential therapy, and 90.3% in concomitant therapy. The eradication rate in treatment-naïve patients was higher than that in patients previously treated for <I>H. pylori</I> infection (73.8% vs. 58.5%, <I>P</I> < 0.001). The overall eradication rate for second-line therapy was 84.3%. There was no statistical difference in eradication rates among various regimens. <I>H. pylori</I> eradication rate using STT is decreasing in Korea and has become sub-optimal, suggesting the need for alternative regimens to improve the efficacy of first-line therapy for <I>H. pylori</I> infection.</P>
Clinicopathological role of kidney injury molecule-1 in immunoglobulin A nephropathy
( Yu Ho Lee ),( Yang-gyun Kim ),( Sang-ho Lee ),( Ju-young Moon ),( Kyung-hwan Jeong ),( Tae-won Lee ),( Chun-gyoo Ihm ) 대한신장학회 2014 Kidney Research and Clinical Practice Vol.33 No.3
Background: Urinary kidney injury molecule-1 (KIM-1) is an early and sensitivebiomarker of acute kidney injury, but it is unclear if it is a biomarker of chronicglomerulonephritis. We evaluated whether urinary KIM-1 levels in patients withimmunoglobulin A (IgA) nephropathy can be a marker to reflect clinicopathologicalseverity and predict the prognosis. Methods: We measured urinary KIM-1 levels in 40 patients (15 males; mean age36.6712.9 years) with IgA nephropathy and 10 healthy people (5 males; mean age37.379.6 years) as controls. The correlation of urinary KIM-1 levels with patients’clinical parameters, histological grades, and follow-up data were analyzed using themodified H. S. Lee grading system and tubulointerstitial change scores. Results: Urinary KIM-1 levels were higher in patients with IgA nephropathy thanhealthy controls (P¼0.001). Univariate and multivariate regression analyses showedthat urinary KIM-1 levels had a direct correlation with H. S. Lee grade andtubulointerstitial inflammation (P¼0.004 and P¼0.011, respectively). Conclusion: In patients with IgA nephropathy, urinary KIM-1 has a significantcorrelation with histopathologic severity.
Kim, Jin Sug,Kim, Seul Ki,Park, Ji Yoon,Kim, Yang Gyun,Moon, Joo Young,Lee, Sang Ho,Ihm, Chun Gyoo,Lee, Tae Won,Kim, Su Kang,Chung, Joo-Ho,Kang, Sun Woo,Kim, Tae Hee,Kim, Yeong Hoon,Jeong, Kyung Hwan S.Karger 2016 The Nephron Journals Vol.133 No.4
<P>Background: Posttransplantation diabetes mellitus (PTDM) is an important metabolic complication after renal transplantation. Activation of the innate immune system via toll-like receptors (TLRs) is implicated in the pathogenesis of insulin resistance and deficiency. Although links between diabetes, dysregulated innate immune responses, and the TLR signaling pathway have been reported, no study so far has investigated their associations with PTDM. In this study, we ascertained whether single nucleotide polymorphisms (SNPs) in TLRs are associated with PTDM in the Korea population. Methods: A total of 305 patients who received renal transplants without previously diagnosed diabetes were included. We analyzed the association between PTDM development and 6 SNPs within 2 genes of TLR2, 1 gene of TLR4, and 3 genes of TRL6. Results: Of 305 patients, PTDM developed in 51 patients (16.6%). Patients in the PTDM group were older than those in the non-PTDM group (45.56 +/- 1.28 vs. 38.28 +/- 0.71 years). Patients with PTDM had significantly higher allele frequency compared to those without PTDM for the TLR4rs1927914*T, TLR6rs3775073*A, TLR6rs3821985*C, and TLR6rs1039559*C alleles. Of the 6 SNPs, rs1927914 in the TLR4 gene and rs1039559 in the TLR6 gene were significantly associated with the development of PTDM after adjustment for age, gender, and tacrolimus usage. Conclusions: Our study demonstrates a significant association between SNPs rs1927914 in TLR4 and rs1039559 in TLR6 and PTDM in the renal transplantation recipient group. These data suggest that the activation of the innate immune system and inflammation via TLR activation might have an essential role in the pathogenesis of PTDM in renal transplantation. (C) 2016 S. Karger AG, Basel.</P>
Clinical efficacy of endoscopic ultrasonography for decision of treatment strategy of gastric cancer
Kim, Jung,Kim, Sang Gyun,Chung, Hyunsoo,Lim, Joo Hyun,Choi, Ji Min,Park, Jae Yong,Yang, Hyo-Joon,Han, Seung Jun,Oh, Sooyeon,Kim, Min Seong,Kim, Hyun Ju,Hong, Hyoungju,Lee, Hee Jong,Kim, Jue Lie,Lee, E Springer-Verlag 2018 Surgical endoscopy Vol.32 No.9
Changing prevalence of upper gastrointestinal disease in 28 893 Koreans from 1995 to 2005
Kim, Jin Il,Kim, Sang Gyun,Kim, Nayoung,Kim, Jae Gyu,Shin, Sung Jae,Kim, Sang Woo,Kim, Hyun Soo,Sung, Jae Kyu,Yang, Chang Heon,Shim, Ki-Nam,Park, Seun Ja,Park, Joon Yong,Baik, Gwang Ho,Lee, Sang Woo,P Lippincott Williams Wilkins, Inc. 2009 European journal of gastroenterology & hepatology Vol.21 No.7
OBJECTIVES: Changes in the pattern of gastrointestinal diseases in a population tend to be influenced by changes in diet and lifestyle. Shifts in gastrointestinal disease from 1995 to 2005 in Korea were evaluated, retrospectively. METHODS: Seventeen nationwide medical centers participated in this study. The cross-sectional review of endoscopic findings in 28 893 patients included 8441 patients from 1995, 10 350 patients from 2000, and 10 102 patients from 2005. RESULTS: The prevalence of reflux esophagitis increased from 1.8% in 1995 to 5.9% in 2000 and 9.1% in 2005 (P<0.001, the P value was only for the comparison between 1995 and 2005, the followings were as same). The prevalence of peptic ulcer diseases was 18.0% in 1995, 19.1% in 2000, and 20.2% in 2005 (P<0.001). Although no significant differences were noted in duodenal ulcers (8.4, 8.7, and 8.2%, P=0.449), gastric ulcers showed an increasing trend (9.6, 10.5, and 12.0%, P<0.001). The prevalence of gastric cancer increased from 3.4% in 1995 to 4.5% in 2000 (P<0.001), but then decreased to 2.4% in 2005 (P<0.001). The incidence of advanced gastric cancer was 2.5, 3.2, and 1.3%, respectively (P<0.001), and that of early gastric cancer remained constant with rates of 0.8%, 1.3, and 1.1%, respectively (P=0.056). CONCLUSION: The cross-sectional review of data collected in 1995, 2000, and 2005 showed an increase in reflux esophagitis and peptic ulcer diseases. Meanwhile, the prevalence of gastric cancer increased until 2000, but decreased in 2005.
Effect of Previous Gastrectomy on the Performance of Postoperative Colonoscopy
Kim, Sunghwan,Choi, Jeongmin,Kim, Tae Han,Kong, Seong-Ho,Suh, Yun-Suhk,Im, Jong Pil,Lee, Hyuk-Joon,Kim, Sang Gyun,Jeong, Seung-Yong,Kim, Joo Sung,Yang, Han-Kwang The Korean Gastric Cancer Association 2016 Journal of gastric cancer Vol.16 No.3
Purpose: The purpose of this study was to determine the effect of a prior gastrectomy on the difficulty of subsequent colonoscopy, and to identify the surgical factors related to difficult colonoscopies. Materials and Methods: Patients with a prior gastrectomy who had undergone a colonoscopy between 2011 and 2014 (n=482) were matched (1:6) to patients with no history of gastrectomy (n=2,892). Cecal insertion time, intubation failure, and bowel clearance score were compared between the gastrectomy and control groups, as was a newly generated comprehensive parameter for a difficult/incomplete colonoscopy (cecal intubation failure, cecal insertion time >12.9 minutes, or very poor bowel preparation scale). Surgical factors including surgical approach, extent of gastrectomy, extent of lymph node dissection, and reconstruction type, were analyzed to identify risk factors for colonoscopy performance. Results: A history of gastrectomy was associated with prolonged cecal insertion time ($8.7{\pm}6.4$ vs. $9.7{\pm}6.5$ minutes; P=0.002), an increased intubation failure rate (0.1% vs. 1.9%; P<0.001), and a poor bowel preparation rate (24.7 vs. 29.0; P=0.047). Age and total gastrectomy (vs. partial gastrectomy) were found to be independent risk factors for increased insertion time, which slowly increased throughout the postoperative duration (0.35 min/yr). Total gastrectomy was the only independent risk factor for the comprehensive parameter of difficult/incomplete colonoscopy. Conclusions: History of gastrectomy is related to difficult/incomplete colonoscopy performance, especially in cases of total gastrectomy. In any case, it may be that a pre-operative colonoscopy is desirable in selected patients scheduled for gastrectomy; however, it should be performed by an expert endoscopist each time.
Kim, Yun Gyoung,Kong, Seong-Ho,Oh, Seung-Young,Lee, Kyung-Goo,Suh, Yun-Suhk,Yang, Jun-Young,Choi, Jeongmin,Kim, Sang Gyun,Kim, Joo-Sung,Kim, Woo Ho,Lee, Hyuk-Joon,Yang, Han-Kwang The Korean Gastric Cancer Association 2014 Journal of gastric cancer Vol.14 No.2
Purpose: This study aimed to analyze the effect of screening by using endoscopy on the diagnosis and treatment of gastric cancer. Materials and Methods: The clinicopathologic characteristics of gastric cancer were compared in individuals who underwent an endoscopy because of symptoms (non-screening group) or for screening purposes (screening group). The distributions of gastric cancer stages and treatment modalities in 2006 and 2011 were compared. Results: The proportion of patients in the screening group increased from 45.1% in 2006 to 65.4% in 2011 (P<0.001). The proportion of stage I cancers in the entire patient sample also increased (from 60.5% in 2006 to 70.6% in 2011; P=0.029). In 2011, the percentages of patients with cancer stages I, II, III, and IV were 79.9%, 8.2%, 10.9%, and 1.1%, respectively, in the screening group, and 47.9%, 10.8%, 29.8%, and 11.5%, respectively, in the non-screening group. The proportion of laparoscopic and robotic surgeries increased from 9.6% in 2006 to 48.3% in 2011 (P<0.001), and endoscopic submucosal dissection increased from 9.8% in 2006 to 19.1% 2011 (P<0.001). Conclusions: The proportion of patients diagnosed with gastric cancer by using the screening program increased between 2006 and 2011. This increase was associated with a high proportion of early-stage cancer diagnoses and increased use of minimally invasive treatments.
Kim, HyoJin,Noh, Sung Jin,Kang, Yeong-Rok,Lee, Manwoo,Jeong, Dong Hyeok,Kim, Jung Ki,Yang, Kwangmo,Ro, Tae-Ik,Shin, Sung Gyun,Kye, Yong Uk,Cho, Moo-Hyun,Kim, Guinyun Elsevier 2015 Nuclear instruments & methods in physics research. Vol.349 No.-
<P><B>Abstract</B></P> <P>The isomeric yield ratios of <SUP>133m,g</SUP>Ce and <SUP>137m,g</SUP>Ce produced from the <SUP>nat</SUP>Ce(γ,xn) reactions were determined by using the activation and the off-line γ-ray spectrometric technique with the end-point bremsstrahlung energies of 55-, 60-, and 65-MeV at 100-MeV electron linac of the Pohang accelerator laboratory. The induced activities in the irradiated foils were measured by using an energy- and efficiency-calibrated HPGe detector coupled to a PC based multi-channel analyzer. The necessary corrections were made to improve the accuracy of the experimental results. The experimental results at bremsstrahlung energies of 55-, 60-, and 65-MeV were 0.324±0.089, 0.331±0.086, and 0.403±0.089 for the <SUP>133m,g</SUP>Ce, and 0.210±0.062, 0.221±0.061, and 0.262±0.061 for the <SUP>137m,g</SUP>Ce, respectively. The present results for <SUP>nat</SUP>Ce(γ,xn)<SUP>133m,g;137m,g</SUP>Ce in this energy region were obtained for the first time which has no comparable literature data. The obtained isomeric yield ratios are compared with the calculated values based on the statistical model code TALYS 1.6.</P>
Viral IL-10 Gene Transfer Prolongs Rat Islet Allograft Survival
Kim, Yang-Hee,Lim, Dong-Gyun,Wee, Yu-Mee,Kim, Jin-Hee,Yun, Chae-Ok,Choi, Monica-Y.,Park, Youn-Hee,Kim, Song-Cheol,Han, Duck-Jong SAGE Publications 2008 Cell transplantation Vol.17 No.6
<P>Islet transplantation is a potential cure for diabetes. However, allotransplant rejection severely limits its clinical application. In this study, we sought to transfect rat islets with an adenoviral vector containing the viral IL-10 (vIL-10) gene and examine its efficacy in preventing graft rejection. The immunosuppressive effect of vIL-10 is reported but its efficacy is somehow debatable in transplantation model. vIL-10 transfected islets were transplanted into streptozotocin-induced diabetic rats. Blood glucose, serum vIL-10 concentration, graft histology, and graft cytokine expression were used to monitor graft function up to day 21 after transplantation. Transfected islets released a large amount of vIL-10 protein without affecting their viability and functional integrity. When we transplanted the transfected islets into allogeneic hosts, the survival of grafted islets was not significantly increased. However, the combined use of vIL-10 and subtherapeutic doses of CsA (cyclosporine) significantly prolonged graft survival beyond that achieved with either agent alone (p < 0.001). vIL-10 and CsA-treated rats contain high level of vIL-10 in serum, which is evidenced by the inhibition of allogeneic mixed lymphocyte reaction (MLR). Histological analysis additionally revealed the presence of viable islets up to 21 days. IL-10 mRNA expression in grafted liver was higher and IFN-gamma mRNA was lower in vIL-10 and CsA-treated animals, compared with other groups. The synergistic effect of this combination therapy is potentially correlated with the induction of inhibitory cytokine secretion and downregulation of proinflammatory cytokine secretion from host cells.</P>