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| 1 | Phytochemical analysis and antioxidants activities of aqueous stem bark extract of Schotia latifolia Jacq显示文摘Objective:To evaluate the phytochemical constituents and antioxidant activities of aqueous extract of Scholia latifolia(S.latifolia)bark locally used for the treatment of oxidative stress-induced ailments in South Africa.Methods:The antioxidant and free radical scavenging activity of aqueous extract of the plant was assessed against 1,1-diphenyl-2-pierylhydrazyl(DPPH),nitric oxide(NO),2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid)diammonium salt(ABTS)and the ferric reducing agent.Total phenolics,flavonoids,flavonols and proanthocyanidins were also determined to assess their corresponding effect on the antioxidant activity of this plant.Results:The activities of plant extract against DPPH,ABTS and NO radicals were concentration dependent with IC_(50)value of 0.06,0.05 and 0.05 mg/mL,respectively.The reducing power of the extract was greater than that of butylated hydroxyl toluene(BHT)and ascorbic acid which were used as standard drugs in a concentration dependent manner.The total phenolics content of the aqueous bark extract was(193.33±0.03 TE/g),followed by flavonoids(72.70±0.01 QE/g),proanthocyanidins|48.76±0.00 CE/g)and flavonols(47.76±0.21 QE/g).Phytochemical analysis revealed the presence of percentage tannin(11.40±0.02),alkaloid(9.80±0.01),steroids(18.20±0.01),glycosides(29.80±0.01)and saponins(6.80±0.00).The results exhibited a positive linear correlation between these polyphenols and the free radical scavenging activities.Conclusions:Our findings provide evidence that the crude aqueous extract of S.latifolia is a potential source of natural antioxidants and this justifies its uses in folkloric medicines. | Mbaebie BO Edeoga HO Afolayan AJ | 2012 | Asian Pacific Journal of Tropical Biomedicine2012，2，2： | 15 |
| 2 | Treatment for gastric ‘indefinite for neoplasm/dysplasia' lesions based on predictive factors显示文摘BACKGROUND Gastric ‘indefinite for neoplasm/dysplasia'(IFND) is a borderline lesion that is difficult to diagnose as either regenerative or neoplastic. There is a need for guidance in the identification of a subset of patients, who have an IFND lesion with a higher risk of malignant potential, to enable risk stratification and optimal management.AIM To determine the clinical and pathologic factors for the accurate diagnosis of gastric IFND lesions.METHODS In total, 461 gastric lesions diagnosed via biopsy as IFND lesions were retrospectively evaluated. Endoscopic resection(n = 134), surgery(n = 22), and follow-up endoscopic biopsy(n = 305) were performed to confirm the diagnosis.The time interval from initial biopsy to cancer diagnosis was measured, and diagnostic delays were categorized as > 2 wk, > 2 mo, > 6 mo, and > 1 year. The IFND lesions presenting as regenerating atypia(60%) or atypical epithelia(40%)at initial biopsy were adenocarcinomas in 22.6%, adenomas in 8.9%, and gastritis in 68.5% of the cases.RESULTS Four clinical factors [age ≥ 60 years(2.445, 95%CI: 1.305-4.580, P = 0.005),endoscopic size ≥ 10 mm(3.519, 95%CI: 1.891-6.548, P < 0.001), single lesion(5.702, 95%CI: 2.212-14.696, P < 0.001), and spontaneous bleeding(4.056, 95%CI:1.792-9.180, P = 0.001)], and two pathologic factors [atypical epithelium(25.575,95%CI: 11.537-56.695, P < 0.001], and repeated IFND diagnosis [6.022, 95%CI:1.822-19.909, P = 0.003)] were independent risk factors for gastric cancer. With two or more clinical factors, the sensitivity and specificity for carcinoma were91.3% and 54.9%, respectively. Ten undifferentiated carcinomas were initially diagnosed as IFND. In the subgroup analysis, fold change(5.594, 95%CI: 1.458-21.462, P = 0.012) predicted undifferentiated or invasive carcinoma in the submucosal layers or deeper. Diagnostic delays shorter than 1 year were not associated with worse prognoses. Extremely well-differentiated adenocarcinomas accounted for half of the repeated IFND cases and resulted in low diagnostic accuracy even on retrospective blinded review.CONCLUSION More than two clinical and pathologic factors each had significant cut-off values for gastric carcinoma diagnosis; in such cases, endoscopic resection should be considered. | Mi Jung Kwon Ho Suk Kang Hyeon Tae Kim Jin Woo Choo Bo Hyun Lee Sung Eun Hong Kun Ha Park Dong Min Jung Hyun Lim Jae Seung Soh Sung Hoon Moon Jong Hyeok Kim Hye-Rim Park Soo Kee Min Jin won Seo Ji-Young Choe | 2019 | World Journal of Gastroenterology2019，25，4： | 4 |
| 3 | HER2-induced metastasis is mediated by AKT/JNK/EMT signaling pathway in gastric cancer显示文摘AIM To investigated the relationships between HER2, c-Jun N-terminal kinase(JNK) and protein kinase B(AKT) with respect to metastatic potential of HER2-positive gastric cancer(GC) cells.METHODS Immunohistochemistry was performed on tissue array slides containing 423 human GC specimens. Using HER2-positve GC cell lines SNU-216 and NCI-N87, HER2 expression was silenced by RNA interference, and the activations of JNK and AKT were suppressed by SP600125 and LY294002, respectively. Transwell assay, Western blot, semi-quantitative reverse transcriptionpolymerase chain reaction and immunofluorescence staining were used in cell culture experiments. RESULTS In GC specimens, HER2, JNK, and AKT activations were positively correlated with each other. In vitro analysis revealed a positive regulatory feedback loop between HER2 and JNK in GC cell lines and the role of JNK as a downstream effector of AKT in the HER2/AKT signaling pathway. JNK inhibition suppressed migratory capacity through reversing EMT and dual inhibition of JNK and AKT induced a more profound effect on cancer cell motility.CONCLUSION HER2, JNK and AKT in human GC specimens are positively associated with each other. JNK and AKT, downstream effectors of HER2, co-operatively contribute to the metastatic potential of HER2-positive GC cells. Thus, targeting of these two molecules in combination with HER2 downregulation may be a good approach to combat HER2-positive GC. | Yiseul Choi Young San Ko Jinju Park Youngsun Choi Younghoon Kim Jung-Soo Pyo Bo Gun Jang Douk Ho Hwang Woo Ho Kim Byung Lan Lee | 2016 | World Journal of Gastroenterology2016，22，41： | 4 |
| 4 | Direct identification of monolayer rhenium diselenide by an individual diffraction pattern显示文摘在当前的广泛的研究分层二维(2D ) 材料,与象 graphene, hBN,和瞬间 2, 那样的六角形的结构相比,低对称的 2D 材料在各向异性的设备为应用显示出大潜力。金来 diselenide (ReSe 2) 拥有体积空格组 \(P\bar 1 \) 并且与使变形的 cadmium-iodide-type 结构属于三斜晶系的水晶系统。这里,我们建议一个电子把单层 ReSe 2 膜与多层的 ReSe 2 和它的二不同垂直取向区分开来的基于衍射的方法。我们的方法对另外的低对称的水晶系统也适用,包括三斜晶系、单斜晶的格子,只要他们的第三单位房间基础向量不对基础飞机垂直。我们的试验性的结果被 kinematical 电子衍射理论和相应模拟很好解释。我们到另外的 2D 材料的方法的归纳例如 graphene,也被讨论。 | Zhen Fei Bo Wang Ching-Hwa Ho Fang Lin Jun Yuan Ze Zhang Chuanhong Jin | 2017 | Nano Research2017，10，7： | 2 |
| 5 | Risk stratification in symptomatic intracranial atherosclerotic disease with conventional vascular risk factors and cerebral haemodynamics显示文摘Background and purpose Symptomatic intracranial atherosclerotic stenosis(sICAS)is associated with a considerable risk of recurrent stroke despite contemporarily optimal medical treatment.Severity of luminal stenosis in sICAS and its haemodynamic significance quantified with computational fluid dynamics(CFD)models were associated with the risk of stroke recurrence.We aimed to develop and compare stroke risk prediction nomograms in sICAS,based on vascular risk factors and these metrics.Methods Patients with 50%-99%sICAS confirmed in CT angiography(CTA)were enrolled.Conventional vascular risk factors were collected.Severity of luminal stenosis in sICAS was dichotomised as moderate(50%-69%)and severe(70%-99%).Translesional pressure ratio(PR)and wall shear stress ratio(WSSR)were quantified via CTA-based CFD modelling;the haemodynamic status of sICAS was classified as normal(normal PR&WSSR),intermediate(otherwise)and abnormal(abnormal PR&WSSR).All patients received guideline-recommended medical treatment.We developed and compared performance of nomograms composed of these variables and independent predictors identified in multivariate logistic regression,in predicting the primary outcome,recurrent ischaemic stroke in the same territory(SIT)within 1 year.Results Among 245 sICAS patients,20(8.2%)had SIT.The D2H2A nomogram,incorporating diabetes,dyslipidaemia,haemodynamic status of sICAS,hypertension and age≥50 years,showed good calibration(P for Hosmer-Lemeshow test=0.560)and discrimination(C-statistic 0.73,95%CI 0.60 to 0.85).It also had better performance in risk reclassification and provided larger net benefits in decision curve analysis,compared with nomograms composed of conventional vascular risk factors only,and plus the severity of luminal stenosis in sICAS.Sensitivity analysis in patients with anterior-circulation sICAS showed similar results.Conclusions The D2H2A nomogram,incorporating conventional vascular risk factors and the haemodynamic significance of sICAS as assessed in CFD models,could be a useful tool to stratify sICAS patients for the risk of recurrent stroke under contemporarily optimal medical treatment. | Xuan Tian Hui Fang Linfang Lan Hing Lung Ip Jill Abrigo Haipeng Liu Lina Zheng Florence S Y Fan Sze Ho Ma Bonaventure Ip Bo Song Yuming Xu Jingwei Li Bing Zhang Yun Xu Yannie O Y Soo Vincent Mok Ka Sing Wong Thomas W Leung Xinyi Leng | 2023 | Stroke & Vascular Neurology2023，8，1： | 2 |
| 6 | 微波辐射辅助柠檬酸络合法制备的Ho^(3+)/Tm^(3+)/Yb^(3+)共掺杂CaWO_4的白光性能(英文)显示文摘采用微波辐射辅助柠檬酸络合法制备Ho3+/Tm3+/Yb3+共掺杂CaWO4纳米晶升频转换荧光粉。将柠檬酸络合物前驱体在300~700°C热处理3 h。Ho3+/Tm3+/Yb3+共掺杂CaWO4C在400°C时开始结晶,在600°C时结晶完成。经600°C热处理的Ho3+/Tm3+/Yb3+共掺杂CaWO4主要呈球形,且形态均匀。在980 nm的激光激发下,Ho3+/Tm3+/Yb3+共掺杂CaWO4纳米晶出现肉眼可见的明亮的白色升频转换发射,这种现象来自Tm3+的475 nm蓝光发射以及Ho3+的543 nm绿光和651 nm红光发射。通过调整Tm3+和Ho3+的浓度可以控制Ho3+/Tm3+/Yb3+共掺杂CaWO4的CIE色度图从冷到暖白色之间变化。讨论了Tm3+和Ho3+浓度对升频转换光性能的影响以及与激光泵功率相关的影响机制。 | Hyun CHO Seok Min HWANG Jae Bin LEE Dong Hyun KA Tae Wan KIM Bo Seul LEE Ji Young LEE Jung-Il LEE Jeong Ho RYU | 2014 | Transactions of Nonferrous Metals Society of China2014，24，S1： | 2 |
| 7 | Antihypertensive properties of dried radish leaves powder in spontaneously hypertensive rats 显示文摘 | Bo Ram Kim Ji Ho Park Sun-Hee Kim | 2010 | Journal of Nutrition and Health2010，43，6： | 1 |
| 8 | Effect of Nutrient Intake and Helicobacter pylori Infection on Gastric Cancer in Korea: A Case-Control Study显示文摘 | Hyun Ja Kim Mi Kyung Kim Woong Ki Chang Ho Soon Choi Bo Youl Choi Sang Sun Lee | 2005 | Nutrition and Cancer2005，，2： | 1 |
| 9 | Association between Helicobacter pylori infection and the risk of gastric cancer in the Korean population: prospective case-controlled study显示文摘 | Woong Ki Chang Hak Yang Kim Dong Joon Kim Jin Lee Choong Kee Park Jae Young Yoo Hyun Ja Kim Mi Kyung Kim Bo Youl Choi Ho Soon Choi Kyung Nam Park | 2001 | Journal of Gastroenterology2001，，12： | 1 |
| 10 | Endoscopic stenting is not as effective for palliation of colorectal obstruction in patients with advanced gastric cancer as emergency surgery显示文摘 | Bo Kyung Kim Sung Pil Hong Hyun Mi Heo Jin Young Kim Hyuk Hur Kang Young Lee Jae Hee Cheon Tae Il Kim Won Ho Kim | 2012 | Gastrointestinal Endoscopy2012，，2： | 1 |
| 11 | Propofol/remifentanil vs sevoflurane/remifentanil for long lasting surgical procedures: a randomised controUed trial显示文摘 | Ho cker J Tonner PH Bo llert P | 2006 | Anaesthesia2006，61，8： | 1 |
| 12 | Advanced incremental conductance MPPT algorithm with a variable step size显示文摘 | Jae Ho Lee HyunSu Bae Bo Hyung Cho | 2006 | IEEE2006，，： | 1 |
| 13 | Endoscopic sphincterotomy plus large-balloon dilation versus endoscopic sphincterotomy for removal of bile-duct stones <ce:link locator='fx1'/>显示文摘 | Jeung Ho Heo Dae Hwan Kang Hyo Jin Jung Dae Sik Kwon Jin Kwang An Bo Suk Kim Kyung Duk Suh Sang Yong Lee Joo Ho Lee Gwang Ha Kim Tae Oh Kim Jeong Heo Geun Am Song Mong Cho | 2007 | Gastrointestinal Endoscopy2007，，4： | 1 |
| 14 | Down-modulation of lung immune responses by interleukin-10 and transforming growth factor β(TGF-β) and analysis of TGF-β receptors Ⅰand Ⅱ in active tuberculosis显示文摘 | Glória Bonecini-Almeida M Ho JL Boéchat N | 2004 | Infect Immun2004，72，5： | 1 |
| 15 | Endoscopic stenting is not as effective for palliation of colorectal obstruction in patients with advanced gastric cancer as emergency surgery显示文摘 | Bo Kyung Kim Sung Pil Hong Hyun Mi Heo Jin Young Kim Hyuk Hur Kang Young Lee Jae Hee Cheon Tae Il Kim Won Ho Kim | 2012 | Gastrointestinal Endoscopy2012，，2： | 1 |
| 16 | Fibrinolytic enzymes in Asian traditional fermented foods 显示文摘 | Yoshinori Mine Ada Ho Kwan Wong Bo Jiang | 2005 | Food Research International2005，38，3： | 1 |
| 17 | Endoscopic sphincterotomy plus large-balloon dilation versus endoscopic sphincterotomy for removal of bile-duct stones <ce:link locator='fx1'/>显示文摘 | Jeung Ho Heo Dae Hwan Kang Hyo Jin Jung Dae Sik Kwon Jin Kwang An Bo Suk Kim Kyung Duk Suh Sang Yong Lee Joo Ho Lee Gwang Ha Kim Tae Oh Kim Jeong Heo Geun Am Song Mong Cho | 2007 | Gastrointestinal Endoscopy2007，，4： | 1 |
| 18 | Business value of B2B electronic commerce:the critical role ofinter-firm collaboration显示文摘 | Seung C L Bo Y P Ho G L | 2003 | Electronic Commerce Research and Applications2003，2，3： | 1 |
| 19 | Fibrinolytic enzymes in Asian traditi -onal fermented foods显示文摘 | Yoshinori Mine Ada Ho Kwan Wong Bo Jiang | 2005 | Food Research International2005，38，3： | 1 |
| 20 | The anti-inflammatory effects of Pyrolae herba extract through the inhibition of the expression of inducible nitric oxide synthase (iNOS) and NO production显示文摘 | Mu Hong Lee Jeong Min Lee Sung Hoon Jun Seung Ha Lee Nam Wook Kim Jun Ho Lee Na Young Ko Se Hwan Mun Bo Kyung Kim Beong Ou Lim Dong Kug Choi Wahn Soo Choi | 2007 | Journal of Ethnopharmacology2007，，1： | 1 |
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