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| 1 | Pretreated quercetin protects gerbil hippocampal CA1 pyramidal neurons from transient cerebral ischemic injury by increasing the expression of antioxidant enzymes显示文摘Quercetin(QE; 3,5,7,3′,4′-pentahydroxyflavone), a well-known flavonoid, has been shown to prevent against neurodegenerative disorders and ischemic insults. However, few studies are reported regarding the neuroprotective mechanisms of QE after ischemic insults. Therefore, in this study, we investigated the effects of QE on ischemic injury and the expression of antioxidant enzymes in the hippocampal CA1 region of gerbils subjected to 5 minutes of transient cerebral ischemia. QE was pre-treated once daily for 15 days before ischemia. Pretreatment with QE protected hippocampal CA1 pyramidal neurons from ischemic injury, which was confirmed by neuronal nuclear antigen immunohistochemistry and Fluoro-Jade B histofluorescence staining. In addition, pretreatment with QE significantly increased the expression levels of endogenous antioxidant enzymes Cu/Zn superoxide dismutase, Mn superoxide dismutase, catalase and glutathione peroxidase in the hippocampal CA1 pyramidal neurons of animals with ischemic injury. These findings demonstrate that pretreated QE displayed strong neuroprotective effects against transient cerebral ischemia by increasing the expression of antioxidant enzymes. | Bai Hui Chen Joon Ha Park Ji Hyeon Ahn Jeong Hwi Cho In Hye Kim Jae Chul Lee Moo-Ho Won Choong-Hyun Lee In Koo Hwang Jong-Dai Kim Il Jun Kang Jun Hwi Cho Bich Na Shin Yang Hee Kim Yun Lyul Lee Seung Min Park | 2017 | Neural Regeneration Research2017，12，2： | 9 |
| 2 | Clinical course of subepithelial lesions detected on upper gastrointestinal endoscopy显示文摘AIM:To evaluate the natural history of subepithelial lesions.METHODS:We reviewed the medical records of 104 159 patients who underwent upper gastrointestinal endoscopy at the Center for Health Promotion of Samsung Medical Center between 1996 and 2003.Subepithelial lesions were detected in 795 patients(0.76%);252 patients were followed using upper gastrointestinal endoscopy for 82.5 ± 29.2 mo(range,12-160 mo;median,84 mo;1st quartile,60 mo;3rd quartile,105 mo).The median interval of follow-up endoscopy was 12 mo(range,6-105 mo;1st quartile,12 mo;3rd quartile,24 mo).RESULTS:The mean patient age was 53 years(range,22-80 years),and the male-to-female ratio was 2.36:1(177/75).The lesion size at initial measurement averaged 8.9 mm(range,2-25 mm;median,8 mm;1st quartile,5 mm;3rd quartile,10 mm).Of the 252 lesions,244(96.8%) were unchanged and 8(3.2%) were significantly increased in size(from 12.9 ± 6.0 to 21.2 ± 12.2 mm) after a mean interval of 59.1 ± 27.5 mo(range,12-86 mo).Surgical resection of lesions was performed when the lesions were ≥ 3 cm in diameter.Two lesions were diagnosed as gastrointestinal stromal tumors with an intermediate or high risk of malignancy and one lesion was classified as a schwannoma.CONCLUSION:Most small subepithelial lesions do not change as shown by endoscopic examination,and regular follow-up with endoscopy may be considered in small,subepithelial lesions,especially lesions < 1 cm in size. | Yeun Jung Lim Hee Jung Son Jong-Soo Lee Young Hye Byun Hyun Joo Suh Pool Lyul Rhee Jae J Kim Jong Chul Rhee | 2010 | World Journal of Gastroenterology2010，16，4： | 6 |
| 3 | Risk factors for postoperative recurrence after primary bowel resection in patients with Crohn's disease显示文摘AIM To evaluate the risk factors for postoperative recurrence after primary bowel resection in a cohort of Korean Crohn's disease(CD) patients.METHODS This study included 260 patients with no history of previous bowel surgery who underwent primary surgery for CD between January 2000 and December 2010 at Asan Medical Center(Seoul, South Korea). The median follow-up period was 101 mo.RESULTS During the follow-up period, 66 patients(25.4%) underwent a second operation for disease recurrence.At 1, 5 and 10 years after the first operation, the cumulative rate of surgical recurrence was 1.1%, 8.3% and 35.9% and clinical recurrence occurred in 1.2%, 23.6% and 68.1%, respectively. In multivariate analysis, undergoing an emergency operation was a significant risk factor for surgical recurrence-free survival(SRFS) [HR = 2.431, 95%CI: 1.394-4.240, P = 0.002], as were the presence of perianal disease after the first operation(HR = 1.715, 95%CI: 1.005-2.926, P = 0.048) and history of smoking(HR = 1.798, 95%CI: 1.088-2.969, P = 0.022). The postoperative use of antitumor necrosis factor(TNF) agents reduced SRFS risk(HR = 0.521, 95%CI: 0.300-0.904, P = 0.02).CONCLUSION History of smoking, postoperative perianal disease and undergoing an emergency operation were independent risk factors for surgical recurrence. Using anti-TNF agents may reduce surgical recurrence. | Kwan Mo Yang Chang Sik Yu Jong Lyul Lee Chan Wook Kim Yong Sik Yoon In Ja Park Seok-Byung Lim Sang Hyoung Park Byong Duk Ye Suk-Kyun Yang Jin Cheon Kim | 2017 | World Journal of Gastroenterology2017，23，38： | 3 |
| 4 | Intestinal endometriosis:Diagnostic ambiguities and surgical outcomes显示文摘BACKGROUND Endometriosis is a common disease for women of reproductive age. However,when it involves intestines, it is difficult to diagnose preoperatively because its symptoms overlap with other diseases and the results of evaluations can be unspecific. Thus it is important to know the clinical characteristics of intestinal endometriosis and how to exactly diagnose.AIM To analyze patients in whom intestinal endometriosis was diagnosed after surgical treatments, and to evaluate the clinical characteristics of preoperatively misdiagnosed cases.METHODS We retrospectively reviewed the pathologic reports of 30 patients diagnosed as having intestinal endometriosis based on surgical specimens between January2000 and December 2017. We reviewed their clinical characteristics and surgical outcomes.RESULTS Twenty-three(76.6%) patients showed symptoms associated with endometriosis,with dysmenorrhea being the most common(n = 9, 30.0%). Thirteen patients(43.3%) had a history of pelvic surgeries. Ten patients(33.3%) had a history of treatment for endometriosis. Only 4 patients(13.3%) had a diagnosis of endometriosis based on endoscopic biopsy findings. According to preoperative evaluations, 13 patients(43.3%) had an initial diagnosis of pelvic endometriosis and 17 patients(56.6%) were misdiagnosed as having other diseases. The most common misdiagnosis was submucosal tumor in the large intestine(n = 8, 26.7%),followed by malignancies of the colon/rectum(n = 3, 10.0%) and ovary(n = 3,10.0%). According to the Clavien-Dindo classification, 5 complications were grade I or II and 2 complications were grade IIIa. The median follow-up period was 26.9(0.6-132.1) mo, and only 1 patient had a recurrence of endometriosis.CONCLUSION Intestinal endometriosis is difficult to diagnose preoperatively because it mimics various intestinal diseases. Thus, if women of reproductive age have ambiguous symptoms and signs with nonspecific radiologic and/or endoscopic findings,intestinal endometriosis should be included in the differential diagnosis. | Jun Woo Bong Chang Sik Yu Jong Lyul Lee Chan Wook Kim Yong Sik Yoon In Ja Park Seok-Byung Lim Jin Cheon Kim | 2019 | World Journal of Clinical Cases2019，7，4： | 3 |
| 5 | Impression of prognosis regarding pathologic stage after preoperative chemoradiotherapy in rectal cancer显示文摘AIM: To ascertain pathologic stage as a prognostic indicator for rectal cancer patients receiving preoperative chemoradiotherapy(PCRT).METHODS: Patients with mid- and low rectal carcinoma(magnetic resonance imaging- based clinical stage Ⅱ or Ⅲ) between 2000 and 2009 and treated with curative radical resection were identified. Patients were divided into two groups: PCRT and No-PCRT. Recurrence-free survival(RFS) was examined according to pathologic stage and addition of adjuvant treatment.RESULTS: Overall, 894 patients were identified. Of these, 500 patients received PCRT. Adjuvant chemotherapy was delivered to 81.5% of the No-PCRT and 94.8% of the PCRT patients. Adjuvant radiotherapy was given to 29.4% of the patients in the No PCRT group. The 5-year RFS for the No-PCRT group was 92.6% for StageⅠ, 83.3% for Stage Ⅱ, and 72.9% for Stage Ⅲ. The 5-year RFS for the PCRT group was 95.2% for yp Stage 0, 91.7% for yp StageⅠ, 73.9% for yp Stage Ⅱ, and 50.7% for yp Stage Ⅲ.CONCLUSION: Pathologic stage can predict prognosis in PCRT patients. Five-year RFS is significantly lower among PCRT patients than No-PCRT patients in pathologic stage Ⅱ and Ⅲ. These results should be taken into account when considering adjuvant treatment for patients treated with PCRT. | Kyungyeon Hwang In Ja Park Chang Sik Yu Seok-Byung Lim Jong Lyul Lee Yong Sik Yoon Chan Wook Kim Jin Cheon Kim | 2015 | World Journal of Gastroenterology2015，21，2： | 3 |
| 6 | Aberrant upregulation of ASCL 2 by promoter demethylation promotes the growth and resistance to 5‐fluorouracil of gastric cancer cells显示文摘 | Oh‐Hyung Kwon Jong‐Lyul Park Su‐Jin Baek Seung‐Moo Noh Kyu‐Sang Song Seon‐Young Kim Yong Sung Kim | 2013 | Cancer Sci2013，，3： | 2 |
| 7 | Hippophae rhamnoides L.leaves extract enhances cell proliferation and neuroblast differentiation through upregulation of intrinsic factors in the dentate gyrus of the aged gerbil显示文摘 | Ji Hyeon Ahn Bai Hui Chen Joon Ha Park In Hye Kim Jeong-Hwi Cho Jae-Chul Lee Bing Chun Yan Jung Hoon Choi In Koo Hwang Ju-Hee Park Sang-No Han Yun Lyul Lee Myong Jo Kim Moo-Ho Won | 2014 | Chinese Medical Journal2014，，23： | 1 |
| 8 | Input Estimation with Multiple Model for Maneuvering Target Tracking显示文摘 | Sang Jin Shin Taek Lyul Song | 2002 | Control Engineering Practice2002，10，2： | 1 |
| 9 | Input estimation with multi-pie model for maneuvering target tracking显示文摘 | Shin Sangjin Taek Lyul Song | 2002 | Control Engineering Practice2002，10，12： | 1 |
| 10 | Automatic target recognition and tracking in forward-looking infrared image sequences with a complex background 显示文摘 | Seok Pil Yoon Taek Lyul Song Tae Han Kim | 2013 | International Journal of Control Automation and Systems2013，11，1： | 1 |
| 11 | Observability of target tracking with range-only measurements显示文摘 | Taek Lyul S | 1999 | IEEE Journal of Oceanic Engineering1999，24，3： | 1 |
| 12 | A probabilistic nearest neighbor filter algorithm for tracking in a clutter environment显示文摘 | Taek Lyul Song Dong Gwan Lee Jonha Ryu | 2005 | Signal Processing2005，，10： | 1 |
| 13 | Ethanol extract of Oenanthe javanica increases cell proliferation and neuroblast differentiation in the adolescent rat dentate gyrus显示文摘Oenanthe javanica is an aquatic perennial herb that belongs to the Oenanthe genus in Apiaceae family, and it displays well-known medicinal properties such as protective effects against glutamate-induced neurotoxicity. However, few studies regarding effects of Oenanthe javanica on neurogenesis in the brain have been reported. In this study, we examined the effects of a normal diet and a diet containing ethanol extract of Oenanthe javanica on cell proliferation and neuroblast differentiation in the subgranular zone of the hippocampal dentate gyrus of adolescent rats using Ki-67(an endogenous marker for cell proliferation) and doublecortin(a marker for neuroblast). Our results showed that Oenanthe javanica extract significantly increased the number of Ki-67-immunoreactive cells and doublecortin-immunoreactive neuroblasts in the subgranular zone of the dentate gyrus in the adolescent rats. In addition, the immunoreactivity of brain-derived neurotrophic factor was significantly increased in the dentate gyrus of the Oenanthe javanica extract-treated group compared with the control group. However, we did not find that vascular endothelial growth factor expression was increased in the Oenanthe javanica extract-treated group compared with the control group. These results indicate that Oenanthe javanica extract improves cell proliferation and neuroblast differentiation by increasing brain-derived neurotrophic factor immunoreactivity in the rat dentate gyrus. | Bai Hui Chen Joon Ha Park Jeong Hwi Cho In Hye Kim Bich Na Shin Ji Hyeon Ahn Seok Joon Hwang Bing Chun Yan Hyun Jin Tae Jae Chul Lee Eun Joo Bae Yun Lyul Lee Jong Dai Kim Moo-Ho Won Il Jun Kang | 2015 | Neural Regeneration Research2015，10，2： | 1 |
| 14 | Impact of incidental findings on integrated 2‐[18 F ]‐fluoro‐2‐deoxy‐ D ‐glucose positron emission tomography/computed tomography in patients with gastric cancer显示文摘 | Chung Hyun Tae Jun Haeng Lee Joon Young Choi Byung‐Hoon Min Poong‐Lyul Rhee Jae J. Kim | 2015 | Asia‐Pac J Clin Oncol2015，，1： | 1 |
| 15 | Prognostic impact of diagnosing colorectal neuroendocrine carcinoma using the WHO 2010 classification显示文摘 | Jong Lyul Lee Chang Sik Yu Misung Kim Seung-Mo Hong Seok-Byung Lim Jin Cheon Kim | 2013 | Surgery2013，，： | 1 |
| 16 | Practical Guidance for Homing Missiles with Bearings-only Measurements显示文摘 | Taek lyul SONG Tae Yoon UM | 1996 | IEEE Transactions on Aerospace and Electronic Systems1996，32，1： | 1 |
| 17 | Neuroprotective effects of ischemic preconditioning on hippocampal CA1 pyramidal neurons through maintaining calbindin D28k immunoreactivity following subsequent transient cerebral ischemia显示文摘Ischemic preconditioning elicited by a non-fatal brief occlusion of blood flow has been applied for an experimental therapeutic strategy against a subsequent fatal ischemic insult. In this study, we investigated the neuroprotective effects of ischemic preconditioning(2-minute transient cerebral ischemia) on calbindin D28k immunoreactivity in the gerbil hippocampal CA1 area following a subsequent fatal transient ischemic insult(5-minute transient cerebral ischemia). A large number of pyramidal neurons in the hippocampal CA1 area died 4 days after 5-minute transient cerebral ischemia. Ischemic preconditioning reduced the death of pyramidal neurons in the hippocampal CA1 area. Calbindin D28k immunoreactivity was greatly attenuated at 2 days after 5-minute transient cerebral ischemia and it was hardly detected at 5 days post-ischemia. Ischemic preconditioning maintained calbindin D28 k immunoreactivity after transient cerebral ischemia. These findings suggest that ischemic preconditioning can attenuate transient cerebral ischemia-caused damage to the pyramidal neurons in the hippocampal CA1 area through maintaining calbindin D28k immunoreactivity. | In Hye Kim Yong Hwan Jeon Tae-Kyeong Lee Jeong Hwi Cho Jae-Chul Lee Joon Ha Park Ji Hyeon Ahn Bich-Na Shin Yang Hee Kim Seongkweon Hong Bing Chun Yan Moo-Ho Won Yun Lyul Lee | 2017 | Neural Regeneration Research2017，12，6： | 1 |
| 18 | Aberrant upregulation of ASCL 2 by promoter demethylation promotes the growth and resistance to 5‐fluorouracil of gastric cancer cells显示文摘 | Oh‐Hyung Kwon Jong‐Lyul Park Su‐Jin Baek Seung‐Moo Noh Kyu‐Sang Song Seon‐Young Kim Yong Sung Kim | 2013 | Cancer Sci2013，，3： | 1 |
| 19 | Feasibility of transanal minimally invasive surgery for mid-rectal lesions显示文摘 | Seok-Byung Lim Seok-In Seo Jong Lyul Lee Jae Young Kwak Tae Young Jang Chan Wook Kim Yong Sik Yoon Chang Sik Yu Jin Cheon Kim | 2012 | Surgical Endoscopy2012，，11： | 1 |
| 20 | Clinical assessment and identification of immuno-oncology markers concerning the 19-gene based risk classifier in stage Ⅳ colorectal cancer显示文摘BACKGROUND Genomic profiling of tumors has contributed to the understanding of colorectal cancer(CRC), facilitating diagnosis, prognosis and selection of treatments,including targeted regimens. A report suggested that a 19-gene-based risk classifier(TCA19) was a prognostic tool for patients with stage III CRC. The survival outcomes in patients with stage IV CRC are still poor and appropriate selection of targeted therapies and immunotherapies is challenging.AIM To assess clinical implication of TCA19 in patients with stage IV CRC, and to identify TCA19 with involvement in immune-oncology.METHODS A retrospective review of the medical records of 60 patients with stage IV CRC was conducted, assessing clinicopathological variables and progression-free survival(PFS). TCA19 gene expression was determined by quantitative polymerase chain reaction(qPCR) in matched normal and tumor tissues taken from the study cohort. Expression of potential immune-oncology regulatory proteins and targets was examined by immunohistochemistry(IHC), western blot, immunofluorescence staining in tissues from a validation cohort of 10 patients, and in CRC cell lines co-cultured with monocyte in vitro.RESULTS In the patients with TCA19 score higher than the median, the PFS rates of eight patients who received the targeted regimens were significantly higher than the PFS rates of four patients who received 5-fluorouracil-based regimen(P = 0.041).In multivariate analysis, expression of signaling lymphocytic activation molecule family, member 7(SLAMF7) and triggering receptor expressed on myeloid cells 1(TREM1) was associated with PFS in the 60-patient cohort. After checking another 10 validate set, the expression of the IHC, the level of real-time qPCR,and the level of western blot were lower for SLAMF7 and higher for TREM7 in primary and metastatic tumors than in normal tissues. In CRC cells expressing SLAMF7 that were co-cultured with a monocytic cell line, levels of CD 68 and CD73 were significantly lower at day 5 of co-culture than at day 0.CONCLUSION The TCA19 score might be prognostic for target-regimen-specific PFS in stage IV CRC. Down-regulation of SLAMF7 and up-regulation of TREM1 occur in primary and metastatic tumor tissues. | Jong Lyul Lee Seon Ae Roh Chan Wook Kim Yi Hong Kwon Ye Jin Ha Seon-Kyu Kim Seon-Young Kim Dong-Hyung Cho Yong Sung Kim Jin Cheon Kim | 2019 | World Journal of Gastroenterology2019，25，11： | 1 |
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