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Asian Pacific Journal of Tropical Medicine 2014年第9期7卷 703-708页

作者： hye kyung kim Department of Food and Biotechnology Hanseo UniversitySeosan 356-706Republic of Korea

Objective:The anti-inflammatory effects of Ecklonia cava(EC)and its mechanism of action were examined in phorbol-12 myristate 13-acetate(30 nmol/L)and A23187(1μmol/L)(PMACI)stimulated human mast cell line-1 ***:Nitric oxide content,inducible nitric oxide synthase and cyclooxygenase-2 protein expression,pro-inflammatory cytokines including IL-1β,TNF-α,and IL-6 mRNA and protein expressions were *** addition,extracellular regulated protein kinases/mitogen-activated protein kinase(ERK/MAPK)activation was ***:EC dose-dependently suppressed inducible nitric oxide synthase and cyclooxygenase-2 protein expression and subsequently it reduces nitric oxide content in PMACI stimulated human mast cell line-1 *** dose-dependently inhibited the mRNA as well as protein expression of TNF-α,IL—1β,and TL-6 in the PMACI stimulated human mast cell line-1 cells without any cytotoxic ***,EC significantly inhibited PMACI induced phosphorylation of ERK1/2 in a dose-dependent manner without affecting the total protein ***:EC exert its anti-inflammatory actions via inhibition of ERK/MAPK signalling pathway,suggesting that EC is a potent and efficacious anti-inflammatory agent for mast cellmediated inflammatory diseases.

关键词： Ecklonia cava Pro-inflammatory cytokine Inducible nitric oxide synthase Cyclooxygenase-2 Mitogen-activated protein kinase

Some Properties of Degenerate r-Dowling Polynomials and Numbers of the Second Kind

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Computer Modeling in Engineering & Sciences 2022年第12期133卷 825-842页

作者： hye kyung kim Dae Sik Lee Department of Mathematics Education Daegu Catholic UniversityGyeongsan38430Korea School of Electronic and Electric Engineering Daegu UniversityGyeongsan38453Korea

The generating functions of special numbers and polynomials have various applications in many fields as well as mathematics and *** recent years,some mathematicians have studied degenerate version of them and obtained many interesting *** this in mind,in this paper,we introduce the degenerate r-Dowling polynomials and numbers associated with the degenerate r-Whitney numbers of the second *** derive many interesting properties and identities for them including generating functions,Dobinski-like formula,integral representations,recurrence relations,differential equation and various explicit *** addition,we explore some expressions for them that can be derived from repeated applications of certain operators to the exponential functions,the derivatives of them and some identities involving them.

关键词： Dowling lattice Whitney numbers and polynomials r-Whitney numbers and polynomials of the second kind r-Bell polynomials r-Stirling numbers dowling numbers and polynomials

Degenerate s-Extended Complete and Incomplete Lah-Bell Polynomials

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Computer Modeling in Engineering & Sciences 2022年第6期130卷 1479-1495页

作者： hye kyung kim Dae Sik Lee Department of Mathematics Education Daegu Catholic UniversityGyeongsan38430Korea School of Electronic and Electric Engineering Daegu UniversityGyeongsan38453Korea

Degenerate versions of special polynomials and numbers applied to social problems,physics,and applied mathematics have been studied variously in recent ***,the(s-)Lah numbers have many other interesting applications in analysis and *** this paper,we divide two *** first introduce new types of both degenerate incomplete and complete s-Bell polynomials respectively and investigate some properties of them ***,we introduce the degenerate versions of complete and incomplete Lah-Bell polynomials as multivariate forms for a new type of degenerate s-extended Lah-Bell polynomials and numbers *** investigate relations between these polynomials and degenerate incomplete and complete s-Bell polynomials,and derive explicit formulas for these polynomials.

关键词： Lah-Bell numbers and polynomials s-extended Lah-Bell numbers and polynomials complete s-Bell polynomials incomplete s-Bell polynomials s-Stirling numbers of second kind

Insulinotrophic and hypolipidemic effects of Ecklonia cava in streptozotocin-induced diabetic mice

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Asian Pacific Journal of Tropical Medicine 2012年第5期5卷 374-379页

作者： Mi-Ja kim hye kyung kim Department of Food and Biotechnology Hanseo UniversitySeosan 356-706Republic of Korea Department of Pharmacology school of MedicineKyunghee UniversitySeoul 130-701Republic of Korea

Objective:To explore the anti-diabetic activity of Ecklonia cava(EC) in streptozotocin(STZ)-induced diabetic ***:Diabetes was induced by a single intraperitoneal injection of STZ(90 mg/kg).Normal and diabetic mice were treated with 0%,3%,and 5%EC diet for 4 weeks. Serum glucose and insulin concentrations,serum lipid profile,oral glucose tolerance test,and liver and pancreaticβ-cell histopathological observations were *** addition,in vitro glucose-induced insulin secretion was determined using pancreaticβ-islet ***:EC supplementation significantly and dose-dependently decreased serum glucose concentration, and improved glucose homeostasis in diabetic mice by preventing loss ofβ-cell mass resulting in increase of insulin *** triglyceride and total cholesterol concentrations in the serum and liver were markedly reduced by EC treatment in STZ-diabetic ***,LDL-,and HDL-cholesterol levels were ameliorated in EC supplemented diabetic *** steatosis induced by STZ was ameliorated by EC ***,in vitro insulinotrophic effect of EC extract was observed in pancreaticβ-***:This study demonstrated that EC is a potent and efficacious hypoglycemic and hypolipidemic agent,and prevents the loss ofβ-cell mass resulting in increase of insulin secretary capacity.

关键词： Diabetes Streptozotocin Insulin Lipid profile Pancreaticβ-cell

Extrusion process of Acanthopanax senticosus leaves enhances the gastroprotective effect of compound 48/80 on acute gastric mucosal lesion in rats

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Journal of Traditional Chinese Medicine 2016年第2期36卷 187-196页

作者： hye kyung kim Myung-Gyou kim Kang-Hyun Leem Department of Food & Biotechnology Hanseo University College of Korean Medicine Semyung University

OBJECTIVE:To investigate the gastroprotective effects of Acanthopanax senticosus leaves(ASLs)extrusion on acute gastric mucosal lesion in rats induced by compound 48/80(C48/80).METHODS:Rats were divided into six groups:normal;C48/80-induced gastric lesion control;gastric lesion positive control(famotidine 4 mg/kg);gastric lesion administered with two levels of extruded ASLs(ASLE,40 and 200 mg/kg);and gastric lesion treated with ASLs(ASL 200 mg/kg).Mucus secretion/damage was determined by immunohistological *** and western blotting were performed to determine gastric mucosal Bax and Bcl-2 *** mucosal oxidative-stress-related enzymes and malondialdehyde were ***:C48/80-induced mucus depletion and inflammation in the gastric mucosa were significantly attenuated by *** increased serum serotonin and histamine concentrations in C48/80-treated rats were also attenuated by *** mucosal Bax protein expression was increased and Bcl-2 expression was decreased after C48/80 treatment,and ASLs ameliorated Bax and Bcl-2 *** extrusion process significantly augmented the effects of ASLs in a dosedependent *** at 200 mg/kg normalized mucus damage/secretion,C48/80-induced increases of mucosal myeloperoxidase activity(index of inflammation),xanthine oxidase,and malondialdehyde content(index of lipid peroxidation).The effects of ASLs on Bax and Bcl-2expression were also enhanced by ***,these effects of ASLEs at 200 mg/kg were similar to those of famotidine,a histamine H2-receptor antagonist commonly used to treat gastric ***:ASLEs prevented acute gastric mucosal lesion progression induced by C48/80,possibly by inducing mucus production,and reduced inflammation and oxidative stress in gastric mucosa through an anti-apoptotic mechanism.

关键词： Acanthopanax senticosus leaves Extrusion Compound 48/80 Gastric mucosal lesion

Antifi brotic effects of green tea on in vitro and in vivo models of liver fibrosis

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World Journal of Gastroenterology 2009年第41期15卷 5200-5205页

作者： hye kyung kim Taik-Hoon Yang Hong-Yon Cho Department of Food and Biotechnology Hanseo University Seosan Chungnam 356-706 South Korea Department of Food and Bio-technology College of Science and Technology Korea University Jochiwon Chungnam 339-700 South Korea

AIM: To examine the protective effect of green tea extract (GT) on hepatic fi brosis in vitro and in vivo in dimethylnitrosamine (DMN)-induced ***: HSC-T6, a rat hepatic stellate cell line, was used as an in vitro assay system. Cell proliferation, collagen content, and type 1 collagen expression were examined in activated HSC-T6 cells. Collagen was determined by estimating the hydroxyproline content. In rats with DMN-induced hepatic fi brosis, serum aspartate aminotransferase and alanine aminotransferase concentrations, liver hydroxyproline and lipid peroxides were determined. Pathologic changes were examined by hematoxylin & eosin ***: GT administration prevented the development of hepatic fibrosis in the rat model of DMN-induced liver fi brosis. These results were confi rmed both by liver histology and by quantitative measurement of hepatic hydroxyproline content, a marker of liver collagen deposition. Accordingly, inhibition of proliferation, reduced collagen deposition, and type 1 collagen expression were observed in activated HSC-T6 cells following GT treatment. These results imply that GT reduced the proliferation of activated HSC and down regulated the collagen content and expression of collagen type 1, thereby ameliorating hepatic ***: This study demonstrates that greentea administration can effectively improve liver fibrosis caused by DMN, and may be used as a therapeutic option and preventive measure against hepatic f ibrosis.

关键词： Dimethylnitrosamine Green tea extract HSC-T6 cell Liver fibrosis Rat model Type 1 collagen

Ex vivo relaxation effect of Cuscuta chinensis extract on rabbit corpus cavernosum

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Asian Journal of Andrology 2013年第1期15卷 134-137页

作者： Kai Sun Chen Zhao Xiang-Feng Chen hye-kyung kim Bo-Ram Choi Yi-Ran Huang Jong-Kwan Park Department of Urology Renji Hospital Shanghai Jiao Tong University School of Medicine and Shanghai Institute of Andrology Shanghai 200127 China Department of Urology Chonbuk National University and Research Institute of Clinical Medicine and Clinical Trial Center of Medical Device of Chonbuk National University Hospital Jeonju 561-712 South Korea

The effect of Cuscuta chinensis extract on the rabbit penile corpus cavernosum （PCC） was evaluated in the present study. Penises obtained from healthy male New Zealand white rabbits （2.5-3.0 kg） were precontracted with phenylephrine （Phe, 10 pmol I^-1） and then treated with various concentrations of Cuscuta chinensis extract （1, 2, 3, 4 and 5 mg ml^-1）. The change in penile tension was recorded, and cyclic nucleotides in the PCC were measured by radioimmunoassay （RIA）. The interaction between Cuscuta chinensis and sildenafil was also evaluated. The result indicated that the PCC relaxation induced by Cuscuta chinensis extract was concentration-dependent. Pre-treatment with an nitric oxide synthase （NOS） inhibitor （No〉 nitro-L-arginine-methyl ester, L-NAME）, a guanylyl cyclase inhibitor （1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-l-one, ODQ）, or a protein kinase A inhibitor （KT 5720） did not completely inhibit the relaxation. Incubation of penile cavernous tissue with the Cuscuta chinensis extract significantly increased cyclic guanosine monophosphate （cGMP） and cyclic adenosine monophosphate （cAMP） in the PCC. Moreover, the Cuscuta chinensis extract significantly enhanced sildenafil-induced PCC relaxation. In conclusion, the Cuscuta chinensis extract exerts a relaxing effect on penile cavernous tissue in part by activating the NO-cGMP pathway, and it may improve erectile dysfunction （ED）, which does not completely respond to sildenafil citrate.

关键词： Cuscuta chinensis erectile dysfunction (ED) NO-cGMP pathway penile corpus cavernosum (PCC) sildenafil

Metabolic relationships between marine red algae and algae‑associated bacteria

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Marine Life Science & Technology 2024年第2期6卷 298-314页

作者： kyung Hyun kim Jeong Min kim Ju hye Baek Sang Eun Jeong Hocheol kim Hwan Su Yoon Che Ok Jeon Department of Biological Sciences and Biotechnology Hannam UniversityDaejon 34054Republic of Korea Department of Life Science Chung-Ang UniversitySeoul 06974Republic of Korea Department of Biological Sciences Sungkyunkwan UniversitySuwon 16419Republic of Korea

Mutualistic interactions between marine phototrophs and associated bacteria are an important strategy for their success-ful survival in the ocean,but little is known about their metabolic ***,bacterial communities in the algal sphere(AS)and bulk solution(BS)of nine marine red algal cultures were analyzed,and Roseibium and Phycisphaera were identified significantly more abundantly in AS than in *** metabolic features of Roseibium RMAR6-6(isolated and genome-sequenced),Phycisphaera MAG 12(obtained by metagenomic sequencing),and a marine red alga,Porphyridium purpureum CCMP1328(from GenBank),were analyzed ***6-6 has the genetic capability to fix nitrogen and produce B vitamins(B1,B2,B5,B6,B9,and B12),bacterioferritin,dimethylsulfoniopropionate(DMSP),and phenylacetate that may enhance algal growth,whereas MAG 12 may have a limited metabolic capability,not producing vitamins B9 and B12,DMSP,phenylacetate,and siderophores,but with the ability to produce bacitracin,possibly modulating algal *** CCMP1328 lacks the genetic capability to fix nitrogen and produce vitamin B12,DMSP,phenylacetate,and *** was shown that the nitrogen-fixing ability of RMAR6-6 promoted the growth of ***-pureum,and DMSP reduced the oxidative stress of *** metabolic interactions between strain RMAR6-6 and *** CCMP1328 were also investigated by the transcriptomic analyses of their monoculture and *** together,potential metabolic relationships between Roseibium and *** were *** study provides a bet-ter understanding of the metabolic relationships between marine algae and algae-associated bacteria for successful growth.

关键词： Metabolic relationship Marine red algae Symbiotic bacteria Roseibium Phycisphaera Porphyridium

Dragonfly Interaction Algorithm for Optimization of Queuing Delay in Industrial Wireless Networks

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Journal of Bionic Engineering 2024年第1期21卷 447-485页

作者： Sanjay Bhardwaj Da-hye kim Dong-Seong kim Department of IT Convergence Engineering ICT Convergence Research CenterKumoh National Institute of TechnologyGumiSouth Korea

In industrial wireless networks,data transmitted from source to destination are highly *** often leads to the queuing of the data,and poor management of the queued data results in excessive delays,increased energy consumption,and packet ***,a nature-inspired-based Dragonfly Interaction Optimization Algorithm(DMOA)is proposed for optimization of the queue delay in industrial wireless *** term“interaction”herein used is the characterization of the“flying movement”of the dragonfly towards damselflies(female dragonflies)for *** a result,interaction is represented as the flow of transmitted data packets,or traffic,from the source to the base *** includes each and every feature of dragonfly movement as well as awareness of the rival dragonflies,predators,and damselflies for the desired optimization of the queue *** features are juxtaposed as noise and interference,which are further used in the calculation of industrial wireless metrics:latency,error rate(reliability),throughput,energy efficiency,and fairness for the optimization of the queue *** analysis,convergence analysis,the Wilcoxon test,the Friedman test,and the classical as well as the 2014 IEEE Congress of Evolutionary Computation(CEC)on the benchmark functions are also used for the evaluation of DMOA in terms of its robustness and *** results demonstrate the robustness of the proposed algorithm for both classical and benchmarking functions of the IEEE CEC ***,the accuracy and efficacy of DMOA were demonstrated by means of the convergence rate,Wilcoxon testing,and ***,fairness using Jain’s index in queue delay optimization in terms of throughput and latency,along with computational complexity,is also evaluated and compared with other *** results show that DMOA exceeds other bio-inspired optimization algorithms in terms of fairness in queue delay management and average packet *** proposed a

关键词： Dragonfly Damselfly Interaction Queuing delay Optimization Industrial wireless networks

Factors affecting length of stay according to bronchopulmonary dysplasia severity:a nationwide cohort study in Korea

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World Journal of Pediatrics 2024年第5期20卷 470-480页

作者： hye Mi Lee Jeongmin Shin Sae Yun kim So Young kim Department of Pediatrics College of MedicineThe Catholic University of KoreaSeoulRepublic of Korea Department of Pediatrics Yeouido St.Mary’s HospitalCollege of MedicineThe Catholic University of Korea1063-roYeongdeungpo-guSeoul07345Republic of Korea

Background Longer hospitalizations for preterm infants with bronchopulmonary dysplasia(BPD)delay developmental outcomes,increase the risk for hospital-acquired complications,and exert a substantial socioeconomic *** study aimed to identify factors associated with an extended length of stay(LOS)at different levels of severity of *** A cohort study was conducted using the Korean Neonatal Network registry of very low birth weight infants with BPD between 2013 and 2017 through retrospective *** A total of 4263 infants were diagnosed with *** mild BPD,infants requiring surgical treatment for patent ductus arteriosus needed a longer LOS[eadjustedβcoefficients(adjβ)1.041;95%confidence interval(CI):0.01–0.08]and hydrocephalus(eadjβ1.094;95%CI 0.01–0.17).In moderate BPD,infants administered steroids or with intraventricular hemorrhage required a longer LOS(eadjβ1.041;95%CI 0.00–0.07 and eadjβ1.271;95%CI 0.11–0.38,respectively).In severe BPD,infants with comorbidities required a longer LOS:pulmonary hypertension(eadjβ1.174;95%CI 0.09–0.23),administrated steroid for BPD(eadjβ1.116;95%CI 0.07–0.14),sepsis(eadjβ1.062;95%CI 0.01–0.11),patent ductus arteriosus requiring surgical ligation(eadjβ1.041;95%CI 0.00–0.08),and intraventricular hemorrhage(eadjβ1.016;95%CI 0.05–0.26).Additionally,the higher the clinical risk index score,the longer the LOS needed for infants in all *** The factors affecting LOS differed according to the severity of *** approaches to reducing LOS may be devised using knowledge of the various risk factors affecting LOS by BPD severity.

关键词： Bronchopulmonary dysplasia Length of stay Very low birth weight