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Esophageal mucosal metastasis from adenocarcinoma of the distal stomach

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World Journal of Gastroenterology 2013年第23期19卷 3699-3702页

作者： Sung-Ho ki Seok Jeong In Suh Park Don Haeng Lee Jung Il Lee Kye Sook Kwon hyung Gil kim Yong Woon Shin Division of Gastroenterology Department of Internal Medicine Pohang St. Mary's HospitalPohang 790-825 South Korea Division of Gastroenterology Department of Internal Medicine Inha University School of MedicineIncheon 400-711 South Korea Department of Pathology Inha University School of MedicineIncheon 400-711 South Korea Center for Advanced Medical Education by BK21 Project Inha University School of Medicine Utah-Inha DDS and Advanced Therapeutics Research CenterIncheon 400-711 South Korea

Dissemination of gastric cancer may usually occur by direct spread through the perigastric tissues to adjacent organ, lymphatic spread, and hematogenous spread. We report a rare case of gastric cancer with mucosal metastastic lesion on the upper esophagus that was diagnosed by endoscopy and endosonography. A biopsy of the esophageal mass was performed and the pathologic findings with immunohistochemical stain for Mucin-5AC are proved to be identical to that of gastric adenocarcinoma, suggesting metastasis from main lesion of the gastric cancer. The lesion could not be explained by lymphatic or hematogenous spread,and its metastasis mechanism is considered to be different from previous studies. We suggest that the gastroesophageal reflux of cancer cells could be one of the possible metastatic pathways for metastasis of esophagus from an adenocarcinoma of the stomach.

关键词： Stomach cancer Neoplasm metastasis Esophagus

Litter Dynamics of Three Subalpine Forests in Western Sichuan

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Pedosphere 2005年第5期15卷 111-117页

作者： S. KELLOMki University of Joensuu P. O. Box 111 Faculty of Forestry FIN-80101 (Finland)

Litter production, components and dynamics were investigated and forest floor litter was quantified throughout awhole year in three subalpine forests, dominated by tree species of spruce (SF), fir (FF) and birch (BF), in WesternSichuan, China, in order to understand the key factors that influenced litter production and dynamics. Litterfall in thethree forests consisted mainly of leaves, woody litter, reproductive organs and moss. Contribution of leaf litter to thetotal litterfall was significantly (P < 0.05) greater than that of woody litter, reproductive organs or moss. Regardlessof the stands, litterfall exhibited a marked monthly variation with the maximum litterfall peaks occurring in October,with smaller peaks occurring in February for SF and FF, and May for BF. The analysis indicated that tree species,stand density, leaf area index (LAI), stand basal area and stand age were the key factors determining litter *** tree species and phenology controlled the litter dynamics, with wind and snow modifying the litter componentsand dynamics.

关键词： litter dynamics litter stock litter production subalpine forests

Thalidomide effect in endothelial cell of acute radiation proctitis

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World Journal of Gastroenterology 2008年第30期14卷 4779-4783页

作者： ki-Tae kim Hiun-Suk Chae Jin-Soo kim hyung-Keun kim Young-Seok Cho Whang Choi Kyu-Yong Choi Sang-Young Rho Suk-Jin Kang Department of Radiology College of Medicine The Catholic University of Korea Uijeongbu St. Mary’s Hospital Department of Internal Medicine College of Medicine The Catholic University of Korea Uijeongbu St. Mary's Hospital Department of Internal Medicine College of Medicine The Catholic University of Korea Our Lady of Mercy Hospital Department of Internal Medicine College of Medicine The Catholic University of Korea Uijeongbu St. Mary’s Hospital Department of Pathology College of Medicine The Catholic University of Korea St. Vincent Hospital

AIM: To determine whether thalidomide prevents microvascular injury in acute radiation proctitis in white rats. METHODS: Fourteen female Wistar rats were used: six in the radiation group, six in the thalidomide group, and two in normal controls. The radiation and thalidomide groups were irradiated at the pelvic area using a single 30 Gy exposure. The thalidomide (150 mg/kg) was injected into the peritoneum for 7 d from the day of irradiation. All animals were sacrificed and the rectums were removed on day 8 after irradiation. The microvessels of resected specimens were immunohistochemically stained with thrombomodulin (TM), von Willebrand Factor (vWF), and vascular endothelial growth factor (VEGF). RESULTS: The microscopic scores did not differ significantly between the radiation and thalidomide groups, but both were higher than in the control group. Expression of TM was significantly lower inthe endothelial cells (EC) of the radiation group than in the control and thalidomide groups (P < 0.001). The number of capillaries expressing vWF in the EC was higher in the radiation group (15.3 ± 6.8) than in the control group (3.7 ± 1.7), and the number of capillaries expressing vWF was attenuated by thalidomide (10.8 ± 3.5, P < 0.001). The intensity of VEGF expression in capillaries was greater in the radiation group than in the control group and was also attenuated by thalidomide (P = 0.003). CONCLUSION: The mechanisms of acute radiation- induced proctitis in the rats are related to endothelial cell injury of microvessel, which may be attenuated with thalidomide.

关键词： Radiation proctitis Von Willebrand factor Thrombomodulin Vascular endothelial growth factor Thalidomide

Infrageneric relationships of Korean Viola based on eight chloroplast markers

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Journal of Systematics and Evolution 2010年第6期48卷 474-481页

作者： ki-Oug YOO Su-kil JANG Department of Biological Sciences Kangwon National University

Phylogeny and infrageneric relationships were reconstructed for Korean Viola(Violaceae) using eight chloroplast sequences:the atpB-rbcL intergenic spacer,the atpF-H intergenic spacer,the matK gene,the psbA-trnH intergenic spacer,the psbK-I intergenic spacer,the rpl16 intron,the rpoC1 exon 2,and the trnL-trnF *** combined analyses of the eight chloroplast regions suggest that sections Dischidium and Chamaemelanium are monophyletic,whereas section Nomimium is paraphyletic;sections Dischidium and Chamaemelanium form a clade with subsections Hypocarpae and Trigonocarpae of section Nomimium,but unresolved within the clade;two subsections(*** and Vaginatae) of section Nomimium form a clade and are placed between the stem and stemless species group;and subsection Patellares of section Nomimium is monophyletic,and Viola dissecta is diverged first in the clade with high support(BS = 100,PP = 100).Our present results support the subsectional grouping based on morphological characteristics,although discordance remained at the series level.

关键词： chloroplast DNA infrageneric relationships phylogeny series subsection Viola.

Corrosion characteristics of steel in seawater containing various chloride concentrations generated by electrochemical method

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中国有色金属学会会刊：英文版 2009年第B9期19卷 50-55页

作者： Seong-Jong kiM Seok-ki JANG Division of Marine Engineering Mokpo Maritime University

The electro-clean system (ECS), a ballast water management system that eliminates harmful aquatic organisms in ship ballast water via electrochemically produced chloride, was developed. The current density for potentiostatic experiments subjected to seawater with an applied potential (-0.1 V) at various TRC concentrations (2×10-6, 6×10-6, 10×10-6, and 15×10-6) have similar results. The current density at -0.1 V has the highest value compared with that at -0.7 V and -0.4 V. For all concentrations, the current density increases with increasing applied potential.

关键词：含氯化物电化学方法腐蚀特性浓度海水船舶压载水钢铁电流密度

Extracts from Paeonia lactiflora Pallas, Rehmannia Glutinosa var. Purpurea Makino, Perilla Frutescens var. Acuta Kudo may increase the endometrial receptivity through expression of leukemia inhibitory factor and adhesion molecules

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Journal of Traditional Chinese Medicine 2019年第1期39卷 15-25页

作者： Eun-Yeong kim Tae-Wook Chung Hee-Jung Choi Yeon-Seop Jung Syng-Ook Lee Jun-Yong Choi hyung Sik kim Sooseong You Myeong Soo Lee ki-Tae Ha School of Korean Medicine and Korean Medical Research Center for Healthy Aging Pusan National UniversityYangsan 50612Republic of Korea Graduate Training Program of Korean Medicine for Healthy-aging Pusan National UniversityYangsan 50612Republic of Korea Department of Food Science and Technology Keimyung UniversityDaegu 42601Republic of Korea National Clinical Research Center for Korean Medicine Korean Medicine Hospital of Pusan National UniversityYangsan 50612Republic of Korea Laboratory of Molecular Toxicology School of PharmacySungKyunKwan UniversitySuwon 16419Republic of Korea Korea Institute of Oriental Medicine Daejeon 34054Republic of Korea

OBJECTIVE: To find out the combination of the extracts from Paeonia lactiflora Pallas(PL), Rehmannia Glutinosa var. Purpurea Makino(RG), Perilla Frutescens var. Acuta Kudo(PF) to increase endometrial ***: Herbal medicines were extracted with boiling water and polysaccharides were *** examined the effect of PL, RG, and PF(PRP), a most effective herbal formula deduced from constitutive ingredient herbs of Antai Yin which is composed of PRP, on the leukemia inhibitory factor(LIF) expression and endometrial ***: The combination of the extracts from PRP induced the LIF expression in Ishikawa cells and increased the adhesion between Ishikawa and JAr cells. In addition, PRP-induced attachment of JAr cells onto Ishikawa cells and expression of adhesion molecules, ITGAV, ITGB5, CD44 s, and Lselectin, are significantly reduced by knock-down of LIF ***: Induced by the combination of the PRP extracts, the adhesion between trophoblast and endometrial cells are mediated by expression of LIF and adhesion molecules. Thus, we suggest the combination of the PRP extracts may be a novel therapy for enhancing embryo implantation rate.

关键词： Paeonia Rehmannia Perilla Embryo implantation Endometrium Leukemia inhibitory factor Cell adhesion molecules

H∞ stability conditions for delayed neural networks with external disturbances and norm-bounded uncertainties:Delay independent and dependent criteria

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Science China(Information Sciences) 2011年第8期54卷 1691-1701页

作者： Choon ki AHN Department of Automotive Engineering Seoul National University of Science & Technology

In this paper,we propose new delay independent and dependent H ∞ stability conditions for delayed neural networks with external disturbances and norm-bounded *** conditions are presented to not only guarantee the asymptotical stability but also reduce the effect of external disturbance to an Hnorm constraint. The proposed conditions are represented by linear matrix inequalities （LMIs）.Optimal Hnorm bounds are obtained easily by solving convex problems in terms of *** applicability of these conditions is illustrated by numerical examples.

关键词： H_∞ analysis delayed neural networks uncertainty disturbance linear matrix inequality (LMI)

Synthesis of crosslinked polystyrene particles by seeded batch polymerization with monomer absorption

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Transactions of Nonferrous Metals Society of China 2011年第A1期21卷 153-159页

作者： ki-Chang LEE Han-Ah WI Department of Polymer Science and Engineering Engineering Research Institute Gyeongsang National University

A highly crosslinked, monodispersed polystyrene（PS） particle was prepared by a seeded batch dispersion polymerization with a monomer absorption method. Prior to polymerization, 1,9 lam monodispersed PS seed particles were treated under an optimum condition of monomer absorption. The effects of divinylbenzebe（DVB） concentration and polymerization temperature were examined for styrene（in PS seed）/styrene（in the second stage） mass ratio of 1：1 in the medium range of EtOH/water mass ratio of 100/0-80/20 and 2.3 μm uniform crosslinked PS particles containing 15%-20% （mass fraction） DVB were prepared at 60-70 ℃. The results show that monomer absorption before the second stage of polymerization is more effective to prepare highly crosslinked monodispersed PS particles.

关键词： crosslinked polystyrene particle seeded batch dispersion polymerization monomer absorption divinylbenzene (DVB)

Separation of primary solid phases from Al-Si alloy melts

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China Foundry 2014年第4期11卷 382-395页

作者： ki Young kim School of Energy Materials and Chemical EngineeringKorea University of Technology and EducationChungnam 330-708Korea

The iron-rich solids formed during solidification of Al-Si alloys which are known to be detrimental to the mechanical,physical and chemical properties of the alloys should be *** the other hand,Al-Si hypereutectic alloys are used to extract the pure primary silicon which is suitable for photovoltaic cells in the solvent refining *** of the important issues in iron removal and in solvent refining is the effective separation of the crystallized solids from the Al-Si alloy *** paper describes the separation methods of the primary solids from Al-Si alloy melts such as sedimentation,draining,filtration,electromagnetic separation and centrifugal separation,focused on the iron removal and on the separation of silicon in the solvent refining process.

关键词： separation Al-Si alloys primary solids iron removal silicon extraction