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| 1 | Worldwide experiences of endoscopic submucosal dissection:Not just Eastern acrobatics显示文摘The high incidence of gastric cancer has led to the initiation of cancer screening programs.As a result,the number of early gastric cancer cases has increased and consequentially,the cancer mortality rate has decreased.Moreover,the development of minimally invasive endoscopic treatment has been introduced for these early lesions.Endoscopic submucosal dissection(ESD) is now recognized as one of the preferred treatment modalities for premalignant gastrointestinal epithelial lesions and early gastric cancer without lymph node metastasis.We review the results of ESD including experiences in Japan and Korea,as well as western countries. | Kwang Bum Cho Won Joong Jeon Jae J Kim | 2011 | World Journal of Gastroenterology2011,17,21: | 48 |
| 2 | Clinical significance of the neutrophil-lymphocyte ratio as an early predictive marker for adverse outcomes in patients with acute pancreatitis显示文摘AIM To investigated the prognostic value of the neutrophillymphocyte ratio(NLR) in patients with acute pancreatitis and determined an optimal cut-off value for the prediction of adverse outcomes in these patients.METHODS We retrospectively analyzed 490 patients with acute pancreatitis diagnosed between March 2007 and December 2012. NLRs were calculated at admission and 24, 48, and 72 h after admission. Patients were grouped according to acute pancreatitis severity and organ failure occurrence, and a comparative analysis was performed to compare the NLR between groups. RESULTS Among the 490 patients, 70 had severe acute pancreatitis with 31 experiencing organ failure. The severe acute pancreatitis group had a significantly higher NLR than the mild acute pancreatitis group on all 4 d(median, 6.14, 6.71, 5.70, and 4.00 vs 4.74, 4.47, 3.20, and 3.30, respectively, P < 0.05). The organ failure group had a significantly higher NLR than the group without organ failure on all 4 d(median, 7.09, 6.72, 6.27, and 6.24 vs 4.85, 4.49, 3.35, and 2.34, respectively, P < 0.05). The optimal cut-off value for baseline NLR was 4.76 in predicting severity and 4.88in predicting organ failure in acute pancreatitis. CONCLUSION Elevated baseline NLR correlates with severe acute pancreatitis and organ failure. | Tae Joo Jeon Ji Young Park | 2017 | World Journal of Gastroenterology2017,23,21: | 37 |
| 3 | Bedside index for severity in acute pancreatitis:comparison with other scoring systems in predicting severity and organ failure显示文摘BACKGROUND:The early identification of severe acute pancreatitis is important for the management and for improving outcomes.The bedside index for severity in acute pancreatitis(BISAP)has been considered as an accurate method for risk stratification in patients with acute pancreatitis.This study aimed to evaluate the comparative usefulness of the BISAP.METHODS:We retrospectively analyzed 303 patients with acute pancreatitis diagnosed at our hospital from March 2007to December 2010.BISAP,APACHE-II,Ranson criteria,and CT severity index(CTSI)of all patients were calculated.We stratified the number of patiants with severe pancreatitis,pancreatic necrosis,and organ failure as well as the number of deaths by BISAP score.We used the area under the receiveroperating curve(AUC)to compare BISAP with other scoring systems,C-reactive protein(CRP),hematocrit,and body mass index(BMI)with regard to prediction of severe acute pancreatitis,necrosis,organ failure,and death.RESULTS:Of the 303 patiants,31(10.2%)were classified as having severe acute pancreatitis.Organ failure occurred in 23(7.6%)patients,pancreatic necrosis in 40(13.2%),and death in6(2.0%).A BISAP score of 2 was a statistically significant cutoff value for the diagnosis of severe acute pancreatitis,organ failure,and mortality.AUCs for BISAP predicting severe pancreatitis and death were 0.80 and 0.86,respectively,which were similar to those for APACHE-II(0.80,0.87)and Ranson criteria(0.74,0.74)and greater than AUCs for CTSI(0.67,0.42).The AUC for organ failure predicted by BISAP,APACHE-II,Ranson criteria,and CTSI was 0.93,0.95,0.84 and 0.57,respectively.AUCs for BISAP predicting severity,organ failure,and death were greater than those for CRP(0.69,0.80,0.72),hematocrit(0.45,0.35,0.14),and BMI(0.41,0.47,0.17).CONCLUSION:The BISAP predicts severity,death,and especially organ failure in acute pancreatitis as well as APACHE-II does and better than Ranson criteria,CTSI,CRP,hematocrit,and BMI. | Ji Young Park Tae Joo Jeon Tae Hwan Ha Jin Tae Hwang Dong Hyun Sinn Tae-Hoon Oh Won Chang Shin Won-Choong | 2013 | Hepatobiliary & Pancreatic Diseases International2013,12,6: | 33 |
| 4 | Limited endoscopic sphincterotomy plus large balloon dilation for choledocholithiasis with periampullary diverticula显示文摘AIM: To investigate the effectiveness and safety of limited endoscopic sphincterotomy (EST) plus large balloon dilation (LBD) for removing choledocholithiasis in patients with periampullary diverticula (PAD). METHODS: A total of 139 patients with common bile duct (CBD) stones were treated with LBD (10-20 mm balloon diameter) after limited EST. Of this total, 73 patients had PAD and 66 patients did not have PAD (controls). The results of stone removal and complications were retrospectively evaluated. RESULTS: There were no significant differences between the PAD and the control groups in overall successful stone removal (94.5% vs 93.9%), stone removal in first session (69.9% vs 81.8%), mechanical lithotripsy (12.3% vs 13.6%), and complications (11.0% vs 7.6%). Clinical outcomes were also similar between the types of PAD, but the rate of stone removal in first session and the number of sessions were significantly lower and more frequent, respectively, in type B PAD (papilla located near the diverticulum) than controls [23/38 (60.5%) vs 54/66 (81.8%), P = 0.021; and 1 (1-2) vs 1 (1-3), P = 0.037, respectively] and the frequency of pancreatitis was significantly higher in type A PAD (papilla located inside or in the margin of the diverticulum) than in controls (16.1% vs 3.0%, P = 0.047). CONCLUSION: Limited EST plus LBD was an effective and safe procedure for removing choledocholithiasis in patients with PAD. However, some types of PAD should be managed with caution. | Hyung Wook Kim Dae Hwan Kang Cheol Woong Choi Jong Hwan Park Jin Ho Lee Min Dae Kim Il Doo Kim Ki Tae Yoon Mong Cho Ung Bae Jeon Suk Kim Chang Won Kim Jun Woo Lee | 2010 | World Journal of Gastroenterology2010,16,34: | 26 |
| 5 | Restoration of common bile duct diameter within 2 weeks after endoscopic stone retraction is a preventive factor for stone recurrence显示文摘Background: Little information is available about the relationship between restoration of common bile duct(CBD) diameter after endoscopic stone retraction and recurrence of CBD stones in elderly patients.The present study was to determine whether restoration of CBD diameter is a preventive factor for CBD stone recurrence in elderly patients who underwent endoscopic retrograde cholangiopancreatography(ERCP).Methods: From January 2006 to December 2010, 238 patients underwent the first and the second session of ERCP for the removal of CBD stones. Among them, 173 were over 65 years old. These patients were divided into recurrent group and non-recurrent group. Restoration of CBD diameter and patients' characteristics were compared.Results: There was no statistical difference in patients' characteristics, associated diseases, or ERCP-related complications between the two groups. Reduction of CBD diameter was significantly larger in the nonrecurrent group(2.7 ± 1.7 mm) compared to that in the recurrent group(1.4 ± 2.3 mm, P = 0.002). The proportion of patients with restoration of CBD diameter were significantly lower in the recurrent group(6/42, 14.3%) compared with that in the non-recurrent group(67/131, 51.1%)(P < 0.01).Conclusions: There is an inverse relationship between restoration of CBD diameter and CBD stone recurrence. Therefore, patients without restoration of CBD diameter within 2 weeks after endoscopic stone removal should be monitored more frequently. | Jin Jeon Sung Uk Lim Chang-Hwan Park Chung-Hwan Jun Seon-Young Park Jong-Sun Rew | 2018 | Hepatobiliary & Pancreatic Diseases International2018,17,3: | 25 |
| 6 | Survival outcome of patients with spontaneously ruptured hepatocellular carcinoma treated surgically or by transarterial embolization显示文摘AIM: To evaluate clinical outcomes of patients that underwent surgery, transarterial embolization (TAE), or supportive care for spontaneously ruptured hepatocellular carcinoma (HCC). METHODS: A consecutive 54 patients who diagnosed as spontaneously ruptured HCC at our institution between 2003 and 2012 were retrospectively enrolled. HCC was diagnosed based on the diagnostic guidelines issued by the 2005 American Association for the Study of Liver Diseases. HCC rupture was defined as disruption of the peritumoral liver capsule with enhanced fluid collection in the perihepatic area adjacent to the HCC by dynamic liver computed tomography, and when abdominal paracentesis showed an ascitic red blood cell count of > 50000 mm 3 /mL in bloody fluid. RESULTS: Of the 54 patients, 6 (11.1%) underwent surgery, 25 (46.3%) TAE, and 23 (42.6%) supportive care. The 2-, 4and 6-mo cumulative survival rates at 2, 4 and 6 mo were significantly higher in the surgery (60%, 60% and 60%) or TAE (36%, 20% and 20%) groups than in the supportive care group (8.7%, 0% and 0%), respectively (each, P < 0.01), and tended to be higher in the surgical group than in the TAE group. Multivariate analysis showed that serum bilirubin (HR = 1.09, P < 0.01), creatinine (HR = 1.46, P = 0.04), and vasopressor requirement (HR = 2.37, P = 0.02) were significantly associated with post-treatment mortality, whereas surgery (HR = 0.41, P < 0.01), and TAE (HR = 0.13, P = 0.01) were inversely associated with posttreatment mortality. CONCLUSION: Post-treatment survival after surgery or TAE was found to be better than after supportive care, and surgery tended to provide better survival benefit than TAE. | Young-Joo Jin Jin-Woo Lee Seoung-Wook Park Jung Il Lee Don Haeng Lee Young Soo Kim Soon Gu Cho Yong Sun Jeon Kun Young Lee Seung-Ik Ahn | 2013 | World Journal of Gastroenterology2013,19,28: | 23 |
| 7 | Anemia after gastrectomy for early gastric cancer:Long-term follow-up observational study显示文摘AIM:To identify the incidence and etiology of anemia after gastrectomy in patients with long-term follow-up after gastrectomy for early gastric cancer.METHODS:The medical records of those patients with early gastric adenocarcinoma who underwent curative gastrectomy between January 2006 and October 2007 were reviewed.Patients with anemia in the preoperative workup,cancer recurrence,undergoing systemic chemotherapy,with other medical conditions that can cause anemia,or treated during follow up with red cell transfusions or supplements for anemia were excluded.Anemia was defined by World Health Organization criteria(Hb < 12 g/dL in women and < 13 g/dL in men).Iron deficiency was defined as serum ferritin < 20 g/dL.Vitamin B12 deficiency was defined as serum vitamin B 12 < 200 pg/mL.Iron deficiency anemia was defined as anemia with concomitant iron deficiency.Anemia from vitamin B 12 deficiency was defined as megaloblastic anemia(mean cell volume > 100 fL) with vitamin B 12 deficiency.The profile of anemia over 48 mo of follow-up was analyzed.RESULTS:One hundred sixty-one patients with gastrectomy for early gastric cancer were analyzed.The incidence of anemia was 24.5% at 3 mo after surgery and increased up to 37.1% at 48 mo after surgery.The incidence of iron deficiency anemia increased during the follow up and became the major cause of anemia at 48 mo after surgery.Anemia of chronic disease and megaloblastic anemia were uncommon.The incidence of anemia in female patients was significantly higher than in male patients at 12(40.0% vs 22.0%,P = 0.033),24(45.0% vs 25.0%,P = 0.023),36(55.0% vs 28.0%,P = 0.004),and 48 mo(52.0% vs 31.0%,P = 0.022) after surgery.Patients with total gastrectomy showed significantly higher incidence of anemia than patients with subtotal gastrectomy at 48 mo after surgery(60.7% vs 31.3%,P = 0.008).The incidence of iron deficiency was significantly higher in female patients than in male patients at 6(35.4% vs 13.3%,P = 0.002),12(45.8% vs 16.8%,P < 0.001),18(52.1% vs 22.3%,P < 0.001),24(60.4% vs 20.9%,P < 0.001),36(62.5% vs 29.2%,P < 0.001),and 48 mo(66.7% vs 34.7%,P = 0.001) after surgery.CONCLUSION:Anemia was frequent after gastrectomy for early gastric cancer,with iron deficiency being the major cause.Evaluation for anemia including iron status should be performed after gastrectomy and appropriate iron replacement should be considered. | Chul-Hyun Lim Sang Woo Kim Won Chul Kim Jin Soo Kim Yu Kyung Cho Jae Myung Park In Seok Lee Myung-Gyu Choi Kyo-Young Song Hae Myung Jeon Cho-Hyun Park | 2012 | World Journal of Gastroenterology2012,18,42: | 18 |
| 8 | Proton pump inhibitor administration delays rebleeding after endoscopic gastric variceal obturation显示文摘AIM:To clarify the efficacy of proton pump inhibitors(PPIs)after endoscopic variceal obturation(EVO)with N-butyl-2-cyanoacrylate.METHODS:A retrospective study was performed on16 liver cirrhosis patients with gastric variceal bleeding that received EVO with injections of N-butyl-2-cyanoacrylate at a single center(Kyung Hee University Hospital at Gangdong)from January 2008 to December 2012.Medical records including patient characteristics and endoscopic findings were reviewed.Treatment results,liver function,serum biochemistry and cirrhosis etiology were compared between patients receiving PPIs and those that did not.Furthermore,the rebleeding interval was compared between patients that received PPI treatment after EVO and those who did not.RESULTS:The patient group included nine males and seven females with a mean age of 61.8±11.7years.Following the EVO procedure,eight of the 12patients that received PPIs and three of the four nonPPI patients experienced rebleeding.There were no differences between the groups in serum biochemistry or patient characteristics.The rebleeding rate was not significantly different between the groups,however,patients receiving PPIs had a significantly longer rebleeding interval compared to non-PPI patients(22.2±11.2mo vs 8.5±5.5 mo;P=0.008).The duration of PPI use was not related to the rebleeding interval.A total of six patients,who had ulcers at the injection site,exhibited a shorter rebleeding interval(16.8±5.9 mo)than patients without ulcers(19.9±3.2 mo),though this difference was not statistically significant.CONCLUSION:PPI therapy can extend the rebleeding interval,and should therefore be considered after EVO treatment for gastric varices. | Won Seok Jang Hyun Phil Shin Joung Ⅱ Lee Kwang Ro Joo Jae Myung Cha Jung Won Jeon Jun Uk Lim | 2014 | World Journal of Gastroenterology2014,20,45: | 17 |
| 9 | Neuroinflammation and cytokine abnormality in major depression:Cause or consequence in that illness?显示文摘Depression results from changes in the central nervous system(CNS) that may result from immunological abnormalities.The immune system affects the CNS through cytokines,which regulate brain activities and emotions.Cytokines affect two biological systems that are most associated with the pathophysiology of depression:The hypothalamic-pituitary-adrenal axis and the catecholamine/sympathetic nervous system.Neuroinflammation and cytokines affect the brain signal patterns involved in the psychopathology of depression and the mechanisms of antidepressants,and they are associated with neurogenesis and neural plasticity.These observations suggest that neuroinflammation and cytokines might cause and/or maintain depression,and that they might be useful in the diagnosis and prognosis of depression.This psychoneuroimmunologic perspective might compensate for some of the limitations of the monoamine theory by suggesting that depression is a result of a failure to adapt to stress and that inflammatory responses and cytokines are involved in this process.In this review,the interactions of cytokines with the CNS,neuroendocrine system,neurotransmitters,neurodegeneration/neurogenesis,and antidepressants are discussed.The roles of cytokines in the etiology and psychopathology of depression are examined.The use of cytokine inhibitors or anti-inflammatory drugs in depression treatment is explored.Finally,the significance and limitations of the cytokine hypothesis are discussed. | Sang Won Jeon Yong Ku Kim | 2016 | World Journal of Psychiatry2016,6,3: | 16 |
| 10 | Increased intestinal macromolecular permeability and urine nitrite excretion associated with liver cirrhosis with ascites显示文摘AIM: To determine intestinal permeability,the serum tumor necrosis factor (TNF)-α level and urine nitric oxide (NO) metabolites are altered in liver cirrhosis (LC) with or without ascites. METHODS: Fifty-three patients with LC and 26 healthy control subjects were enrolled in the study. The intestinal permeability value is expressed as the percentage of polyethylene glycol (PEG) 400 and 3350 retrieval in 8-h urine samples as determined by high performance liquid chromatography. Serum TNF-α concentrations and urine NO metabolites were determined using an enzyme-linked immunosorbent assay (ELISA) and Greiss reaction method,respectively. RESULTS: The intestinal permeability index wassignif icantly higher in patients with LC with ascites than in healthy control subjects or patients with LC without ascites (0.88 ± 0.12 vs 0.52 ± 0.05 or 0.53 ± 0.03,P < 0.05) and correlated with urine nitrite excretion (r = 0.98). Interestingly,the serum TNF-α concentra-tion was significantly higher in LC without ascites than in control subjects or in LC with ascites (198.9 ± 55.8 pg/mL vs 40.9 ± 12.3 pg/mL or 32.1 ± 13.3 pg/mL,P < 0.05). Urine nitrite excretion was significantly higher in LC with ascites than in the control subjects or in LC without ascites (1170.9 ± 28.7 μmol/L vs 903.1 ± 55.1 μmol/L or 956.7 ± 47.7 μmol/L,P < 0.05). CONCLUSION: Increased intestinal macromolecular permeability and NO is probably of importance in the pathophysiology and progression of LC with ascites,but the serum TNF-α concentration was not related to LC with ascites. | Soong Lee Seung-Cheol Son Moon-Jong Han Woo-Jin Kim Soo-Hyun Kim Hye-Ran Kim Woo-Kyu Jeon Ki-Hong Park Myung-Geun Shin | 2008 | World Journal of Gastroenterology2008,14,24: | 16 |
| 11 | Does the bile duct angulation affect recurrence of choledocholithiasis?显示文摘AIM:To investigate whether bile duct angulation and T-tube choledochostomy influence the recurrence of choledocholithiasis.METHODS:We conducted a retrospective study including 259 patients who underwent endoscopic sphincterotomy and cholecystectomy for choledocholithiasis between 2000 and 2007.The imaginary line was drawn along the center of the bile duct and each internal angle was measured at the two angulation sites ofthe bile duct respectively.The values of both angles were added together.We then tested our hypothesis by examining whether T-tube choledochostomy was performed and stone recurrence occurred by reviewing each subject's medical records.RESULTS:The overall recurrence rate was 9.3% (24 of 259 patients).The mean value of sums of angles in the recurrence group was 268.3°± 29.6°,while that in the non-recurrence group was 314.8°± 19.9° (P < 0.05).Recurrence rate of the T-tube group was 15.9% (17 of 107),while that of the non T-tube group was 4.6% (7 of 152) (P < 0.05).Mean value of sums of angles after T-tube drainage was 262.5°± 24.6° and that before T-tube drainage was 298.0°± 23.9° in 22 patients (P < 0.05).CONCLUSION:The bile duct angulation and T-tube choledochostomy may be risk factors of recurrence of bile duct stones. | Dong Beom Seo Byoung Wook Bang Seok Jeong Don Haeng Lee Shin Goo Park Yong Sun Jeon Jung Il Lee Jin-Woo Lee | 2011 | World Journal of Gastroenterology2011,17,36: | 15 |
| 12 | Rice Transcription Factor OsDOFll Modulates Sugar Transport by Promoting Expression of Sucrose Transporter and SWEET Genes显示文摘 | Yunfei Wu Sang-Kyu Lee Youngchul Yoo Jinhuan Wei Suk-Yoon Kwon Sang-Won Lee Jong-Seong Jeon Gynheung An | 2018 | Molecular Plant2018,11,6: | 15 |
| 13 | Application of human umbilical cord blood-derived mesenchymal stem cells in disease models显示文摘Human umbilical cord blood-derived mesenchymal stem cells(hUCB-MSCs) are regarded as an alternative source of bone marrow-derived mesenchymal stem cells because collection of cord blood is less invasive than that of bone marrow.hUCB-MSCs have recently been studied for evaluation of their potential as a source of cell therapy.In this review,the general characteristics of hUCBMSCs and their therapeutic effects on various diseases in vitro and in vivo will be discussed. | Ju-Yeon Kim Hong Bae Jeon Yoon Sun Yang Wonil Oh Jong Wook Chang | 2010 | World Journal of Stem Cells2010,2,2: | 14 |
| 14 | Long-term follow up of endoscopic resection for type 3 gastric NET显示文摘AIM:To clarify the short and long-term results and to prove the usefulness of endoscopic resection in type 3gastric neuroendocrine tumors(NETs).METHODS:Of the 119 type 3 gastric NETs diagnosed from January 1996 to September 2011,50 patients treated with endoscopic resection were enrolled in this study.For endoscopic resection,endoscopic mucosal resection(EMR)or endoscopic submucosal dissection(ESD)was used.Therapeutic efficacy,complications,and follow-up results were evaluated retrospectively.RESULTS:EMR was performed in 41 cases and ESD in 9 cases.Pathologically complete resection was performed in 40 cases(80.0%)and incomplete resection specimens were observed in 10 cases(7 vs 3 patients in the EMR vs ESD group,P=0.249).Upon analysis of the incomplete resection group,lateral or vertical margin invasion was found in six cases(14.6%)in the EMR group and in one case in the ESD group(11.1%).Lymphovascular invasions were observed in two cases(22.2%)in the ESD group and in one case(2.4%)in the EMR group(P=0.080).During the follow-up period(43.73;13-60 mo),there was no evidence of tumor recurrence in either the pathologically complete resection group or the incomplete resection group.No recurrence was reported during follow-up.In addition,no mortality was reported in either the complete resection group or the incomplete resection group for the duration of the follow-up period.CONCLUSION:Less than 2 cm sized confined submucosal layer type 3 gastric NET with no evidence of lymphovascular invasion,endoscopic treatment could be considered at initial treatment. | Yong Hwan Kwon Seong Woo Jeon Gwang Ha Kim Jin Il Kim Il-Kwun Chung Sam Ryong Jee Heung Up Kim Geom Seog Seo Gwang Ho Baik Kee Don Choi Jeong Seop Moon | 2013 | World Journal of Gastroenterology2013,19,46: | 14 |
| 15 | Programmed death ligand-1 expression and its prognostic role in esophageal squamous cell carcinoma显示文摘AIM To investigate the expression and prognostic role of programmed death ligand-1(PD-L1) in locally advanced esophageal squamous cell carcinoma(ESCC).METHODS A total of 200 patients with ESCC who underwent radical esophagectomy with standard lymphadenectomy as the initial definitive treatment in Seoul National University Hospital from December 2000 to April 2013 were eligible for this analysis. Tissue microarrays were constructed by collecting tissue cores from surgical specimens, and immunostained with antibodies directed against PD-L1, p16, and c-Met. Medical records were reviewed retrospectively to assess clinical outcomes. Patients were divided into two groups by PD-L1 status, and significant differences in clinicopathologic characteristics between the two groups were assessed. RESULTS Tumor tissues from 67 ESCC patients(33.5%) were PDL1-positive. Positive p16 expression was observed in 21 specimens(10.5%). The H-score for c-Met expression was ≥ 50 in 42 specimens(21.0%). Although PDL1-positivity was not significantly correlated with any clinical characteristics including age, sex, smoking/alcoholic history, stage, or differentiation, H-scores for c-Met expression were significantly associated with PDL1-positivity(OR = 2.34, 95%CI: 1.16-4.72, P = 0.017). PD-L1 expression was not significantly associated with a change in overall survival(P = 0.656). In contrast, the locoregional relapse rate tended to increase(P = 0.134), and the distant metastasis rate was significantly increased(HR = 1.72, 95%CI: 1.01-2.79, P = 0.028) in patients with PD-L1-positive ESCC compared to those with PD-L1-negative ESCC.CONCLUSION PD-L1 expression is positively correlated with c-Met expression in ESCC. PD-L1 may play a critical role in distant failure and progression of ESCC. | Ryul Kim Bhumsuk Keam Dohee Kwon Chan-Young Ock Miso Kim Tae Min Kim Hak Jae Kim Yoon Kyung Jeon In Kyu Park Chang Hyun Kang Dong-Wan Kim Young Tae Kim Dae Seog Heo | 2016 | World Journal of Gastroenterology2016,22,37: | 14 |
| 16 | MicroRNAs in lung cancer显示文摘Micro RNAs have become recognized as key players in the development of cancer. They are a family of small non-coding RNAs that can negatively regulate the expression of cancer-related genes by sequenceselective targeting of m RNAs, leading to either m RNA degradation or translational repression. Lung cancer is the leading cause of cancer-related death worldwide with a substantially low survival rate. Micro RNAs have been confirmed to play roles in lung cancer development, epithelial-mesenchymal transition and response to therapy. They are also being studied for their future use as diagnostic and prognostic biomarkers and as potential therapeutic targets. In this review we focus on the role of dysregulated micro RNA expression in lung tumorigenesis. We also discuss the role of micro RNAs in therapeutic resistance and as biomarkers. We further look into the progress made and challenges remaining in using micro RNAs for therapy in lung cancer. | Pooja Joshi Justin Middleton Young-Jun Jeon Michela Garofalo | 2014 | World Journal of Methodology2014,4,2: | 13 |
| 17 | Disassembly of the fruit cell wall by the ripening-associated polygalacturonase and expansin influences tomato cracking显示文摘Fruit cracking is an important problem in horticultural crop production.Polygalacturonase(SlPG)and expansin(SlEXP1)proteins cooperatively disassemble the polysaccharide network of tomato fruit cell walls during ripening and thereby,enable softening.A Golden 2-like(GLK2)transcription factor,SlGLK2 regulates unripe fruit chloroplast development and results in elevated soluble solids and carotenoids in ripe fruit.To determine whether SlPG,SlEXP1,or SlGLK2 influence the rate of tomato fruit cracking,the incidence of fruit epidermal cracking was compared between wild-type,Ailsa Craig(WT)and fruit with suppressed SlPG and SlEXP1 expression(pg/exp)or expressing a truncated nonfunctional Slglk2(glk2).Treating plants with exogenous ABA increases xylemic flow into fruit.Our results showed that ABA treatment of tomato plants greatly increased cracking of fruit from WT and glk2 mutant,but not from pg/exp genotypes.The pg/exp fruit were firmer,had higher total soluble solids,denser cell walls and thicker cuticles than fruit of the other genotypes.Fruit from the ABA treated pg/exp fruit had cell walls with less water-soluble and more ionically and covalently-bound pectins than fruit from the other lines,demonstrating that ripening-related disassembly of the fruit cell wall,but not elimination of SlGLK2,influences cracking.Cracking incidence was significantly correlated with cell wall and wax thickness,and the content of cell wall protopectin and cellulose,but not with Ca^(2+)content. | Fangling Jiang Alfonso Lopez Shinjae Jeon Sergio Tonetto de Freitas Qinghui Yu Zhen Wu John M.Labavitch Shengke Tian Ann L.T.Powell Elizabeth Mitcham | 2019 | Horticulture Research2019,6,1: | 13 |
| 18 | New magnifying endoscopic classification for superficial esophageal squamous cell carcinoma显示文摘AIM To assess the accuracy of a new magnifying endoscopy(ME)classification for predicting depth of invasion of superficial esophageal squamous cell carcinoma(SESCC).METHODS This study included a total of 70 lesions in 69 patients with SESCC who underwent ME with narrow-band imaging(ME-NBI)before resection from August 2010 to July 2016.Accuracy of ME-NBI for predicting depth of invasion of SESCC was analyzed by using a new ME classification proposed by the Japan Esophageal Society(JES),and interobserver agreement was assessed.RESULTS Overall accuracy of ME-NBI for estimating depth of invasion of SESCC was 78.6%.Sensitivity and specificity of type B1 for tumors limited to the epithelial layer(m1)or invading into the lamina propria(m2)were 71.4%and 100%,respectively.Sensitivity and specificity of type B2 for tumors invading into the muscularis mucosa(m3)or superficial submucosa(≤200μm,sm1)were94.4%and 73.1%,respectively,while those of type B3for tumors invading into the deep submucosa(>200μm,sm2)were 75.0%and 97.8%,respectively.Interobserver agreement was excellent(κ=0.86,95%CI:0.76-0.95).CONCLUSION The recently developed JES ME classification is useful for predicting depth of invasion of SESCC,with reliable interobserver agreement. | Su Jin Kim Gwang Ha Kim Moon Won Lee Hye Kyung Jeon Dong Hoon Baek Bong Eun Lee Geun Am Song | 2017 | World Journal of Gastroenterology2017,23,24: | 13 |
| 19 | Plasma levels of acylated ghrelin in patients with functional dyspepsia显示文摘AIM:To investigate the relationship between plasma acylated ghrelin levels and the pathophysiology of functional dyspepsia.METHODS:Twenty-two female patients with functional dyspepsia and twelve healthy volunteers were recruited for the study.The functional dyspepsia patients were each diagnosed based on the Rome Ⅲ criteria.Eligible patients completed a questionnaire concerning the severity of 10 symptoms.Plasma acylated ghrelin levels before and after a meal were determined in the study participants using a commercial human acylated enzyme immunoassay kit;electrogastrograms were performed for 50 min before and after a standardized 10-min meal containing 265 kcal.RESULTS:There were no significant differences in plasma acylated ghrelin levels between healthy volunteers and patients with functional dyspepsia.However,in patients with functional dyspepsia,there was a negative correlation between fasting plasma acylated ghrelin levels and the sum score of epigastric pain(r =-0.427,P = 0.047) and a positive correlation between the postprandial/fasting plasma acylated ghrelin ratio and the sum score of early satiety(r = 0.428,P =0.047).Additionally,there was a negative correlation between fasting acylated ghrelin plasma levels and fasting normogastria(%)(r =-0.522,P = 0.013).Interestingly,two functional dyspepsia patients showed paradoxically elevated plasma acylated ghrelin levels after the meal.CONCLUSION:Abnormal plasma acylated ghrelin levels before or after a meal may be related to several of the dyspeptic symptoms seen in patients with functional dyspepsia. | Yeon Soo Kim Joon Seong Lee Tae Hee Lee Joo Young Cho Jin Oh Kim Wan Jung Kim Hyun Gun Kim Seong Ran Jeon Hoe Su Jeong | 2012 | World Journal of Gastroenterology2012,18,18: | 12 |
| 20 | Acid suppressive drugs and gastric cancer: A meta-analysis of observational studies显示文摘AIM: To evaluate the association between acid suppressive drug use and the development of gastric cancer. METHODS: A systematic search of relevant studies that were published through June 2012 was conducted using the MEDLINE (PubMed), EMBASE, and Cochrane Library databases. The search included observational studies on the use of histamine 2-receptor antagonists (H 2 RAs) or proton pump inhibitors and the associated risk of gastric cancer, which was measured using the adjusted odds ratio (OR) or the relative risk and 95%CI. An independent extraction was performed by two of the authors, and a consensus was reached. RESULTS: Of 4595 screened articles, 11 observational studies (n = 94558) with 5980 gastric cancer patients were included in the final analyses. When all the studies were pooled, acid suppressive drug use was associated with an increased risk of gastric cancer risk (adjusted OR = 1.42; 95%CI: 1.29-1.56, I2 = 48.9%, P = 0.034). The overall risk of gastric cancer increased among H 2 RA users (adjusted OR = 1.40; 95%CI: 1.24-1.59, I2 = 59.5%, P = 0.008) and PPI users (adjusted OR = 1.39; 95%CI: 1.19-1.64, I2 = 0.0%, P = 0.377). CONCLUSION: Acid suppressive drugs are associated with an increased risk of gastric cancer. Further studies are needed to test the effect of acid suppressive drugs on gastric cancer. | Jeong Soo Ahn Chun-Sick Eom Christie Y Jeon Sang Min Park | 2013 | World Journal of Gastroenterology2013,19,16: | 12 |