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Cyber Spatiotemporal as Media Culture： A Cognitive Level Study of Time （Tempo） and Space （Spatial） Based on Media Types

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Journalism and Mass Communication 2012年第9期2卷 946-964页

作者： Sang-Hee Kweon Kyung-ho hwang Do-Hyun Jo Sungkyunkwan University Seoul Republic of Korea Hyupsung University Hwaseongsi Republic of Korea

This research explores media users＇ cognition of ＂time＂ and ＂space＂ across different media platforms, and conducts a comparison among media genres including mass media and intemet media based on user＇s interactivities. Especially, this research focused on the internet＇s space and time perception based on communication genres such as e-mail, Blogs, portals, news-media, e-commerce, and social media （SNS）. The research adopted two theories （construal level theory of time and space）. The time related theory is ＂temporal distance theory＂. The space related theory is ＂media space＂. The research is designed to measure user＇s perception of interactivity, time-construal level and its media space cognition while using the media. There are two independent variables： Interactivities （contents, user, and media levels） and user involvement （CMC-user vs. user, HCI-user vs. media）; there are two dependent variables： Cognition of spatial and temporal levels. This research also seeks the associated variables relationship among those variables through the structural equation model （SEM）. The 307 data was collected and analyzed to test the research question. The results show that the dimension of the media side＇s interactivity affected media＇s usage time and space perception. There are 2 ~ 2 factors variables to affect time and space. One is human and media interaction （HC1） and human to human communication （CMC）; the other is traditional mass media （one-way communication） and interuet media （two-ways communication）. The results prove the user＇s perception for media time and space is based on the levels of interactivity. The levels of interactivities depend on media usage： one-one, one-many, synchronous, asynchronous, interpersonal, and social network communication. Online media provides greater social space; while traditional media tends toward para-space perception. On the other hand, the users＇ time cognitions between online media are different such as fixed time versus cyber-time.

关键词： construal time space human and media interaction (HCI) human to human communication (CMC) interactivity media space (a) synchronous hypertext

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New-onset diabetes after adult liver transplantation in the Korean Organ Transplantation Registry (KOTRY) study

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Hepatobiliary Surgery and Nutrition 2020年第4期9卷 425-439页

作者： Jong Man Kim Shin hwang Kwang-Woong Lee Jae-Geun Lee Je ho Ryu Bong-Wan Kim Dong Lak Choi Young kyoung You Dong-Sik Kim Yang Won Nah Koo Jeong Kang Jai Young Cho Geun hong In Seok Choi Hee Chul Yu Dongho Choi Myoung Soo Kim 无 Department of Surgery Samsung Medical CenterSungkyunkwan University School of MedicineSeoulSouth Korea Department of Surgery Asan Medical CenterCollege of Medicine University of UlsanSouth Korea Department of Surgery Seoul National University College of MedicineSeoulSouth Korea Department of Surgery Yonsei University College of MedicineSeoulSouth Korea Department of Surgery Pusan National University College of MedicineBusanSouth Korea Department of Liver Transplantation and Hepatobiliary Surgery Ajou University School of MedicineSuwonSouth Korea Department of Surgery Catholic University of Daegu College of MedicineDaeguSouth Korea Department of Surgery College of MedicineCatholic University of KoreaSeoulSouth Korea Division of HBP Surgery and Liver Transplantation Department of SurgeryKorea University College of MedicineSeoulSouth Korea Department of Surgery Ulsan University HospitalUniversity of Ulsan College of MedicineUlsanSouth Korea Department of Surgery Keimyung University School of MedicineDaeguSouth Korea Department of Surgery Seoul National University Bundang HospitalSeoul National University College of MedicineSungnamSouth Korea Department of Surgery Ewha Woman’s University School of MedicineSeoulSouth Korea Department of Surgery Konyang University HospitalDaejonSouth Korea Department of Surgery Chonbuk National University School of MedicineJeonjuSouth Korea Department of Surgery Hanyang University College of MedicineSeoulSouth Korea The Korean Organ Transplantation Registry Study Group

Background:New-onset diabetes after transplantation(NODAT)is a serious complication following liver transplantation(LT).The present study aimed to investigate the incidence of and risk factors for NODAT using the Korean Organ Transplantation Registry(KOTRY)***:Patients with history of pediatric transplantation(age≤18 years),re-transplantation,multi-organ transplantation,or pre-existing diabetes mellitus were excluded.A total of 1,919 non-diabetic adult patients who underwent a primary LT between May 2014 and December 2017 were *** factors were identified using Cox regression ***:NODAT occurred in 19.7%(n=377)of adult liver transplant *** analysis showed steroid use,increased age,and high body mass index(BMI)in recipients,and implantation of a left-side liver graft was closely associated with NODAT in adult *** living donor liver transplant(LDLT)patients(n=1,473),open donor hepatectomy in the living donors,steroid use,small for size liver graft(graft to recipient weight ratio≤0.8),increased age,and high BMI in the recipient were predictive factors for *** use of antimetabolite and basiliximab induction reduced the incidence of NODAT in adult LT and in adult ***:Basiliximab induction,early steroid withdrawal,and antimetabolite therapy may prevent NODAT after adult *** BMI or advanced age in liver recipients,open donor hepatectomy in living donors,and small size liver graft can predict the occurrence of NODAT after adult LT or LDLT.

关键词： Diabetes living donors immunosuppression Asia

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Rainbow halos occur less following implantation of extended range of vision one-piece intraocular lenses vs diffractive bifocal intraocular lenses

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International Journal of Ophthalmology(English edition) 2020年第6期13卷 913-919页

作者： Jae-hyung Kim Youngsub Eom Seo Yeon Park Soo Youn Choi ho Sik hwang Jun-Heon Kim Jong Suk Song Hyo Myung Kim Seoul Daabom Eye Center Cheongju 28568Republic of Korea Department of Ophthalmology Ansan HospitalKorea University College of Medicine.Seoul 15355Republic of Korea BGN World Tower Eye Clinic Seoul 05551Republic of Korea Department of Ophthalmology Yeouido St.Mary's HospitalCollege of Medicinethe Catholic University of KoreaSeoul 07345Republic of Korea Joeunnun Vision Clinic Seoul 06134Republic of Korea

AIM:To evaluate clinical outcomes following implantation of an extended range of vision intraocular lens(IOL),the ZXR00,and a diffractive multifocal IOL with+2.75 diopters(D)add power,the ***:Totally 30 patients who underwent either bilateral implantation of the ZXR00 IOL with intended emmetropia(ZXR00 emmetropia group:20 eyes)and intended micromonovision(ZXR00 monovision group:20 eyes),or bilateral implantation of the ZKB00 IOL with intended emmetropia(ZKB00 group:20 eyes)were included in this *** acuity at 4 m,80,and 40 cm;and the types of halos(misty,fine,and rainbow)were analyzed at one and three months after ***:There were no significant differences in distance visual acuity among the three *** mean uncorrected intermediate visual acuity was better in the ZXR00 emmetropia and monovision groups(0.02 logMAR and 0.02 logMAR,respectively)than in the ZKB00 group(0.14 logMAR).The mean uncorrected near visual acuity was worse in the ZXR00 emmetropia group(0.26 logMAR)than in the ZXR00 monovision and ZKB00 groups(0.12 logMAR and 0.10 logMAR,respectively).There was an increased incidence of rainbow halos in the ZKB00 group vs in either ZXR00 group(P=0.033).CONCLUSION:Implantation of the ZXR00 IOL with intended micromonovision provide superior visual acuity than implantation of the ZXR00 IOL with intended *** ZXR00 IOLs tend to show a lower incidence of rainbow halos than did the ZKB00 IOL.

关键词： halos intraocular lens diffractive bifocal multifocal rainbow halos

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Pre-operative predictive factors for gallbladder cholesterol polyps using conventional diagnostic imaging

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World Journal of Gastroenterology 2008年第44期14卷 6831-6834页

作者： Ji-hoon Choi Jung-Won Yun Yong-Sung Kim Eun-A Lee Sang-Tae hwang Yong-Kyun Cho hong-Joo Kim Jung-ho Park Dong-Il Park Chong-Il Sohn Woo-Kyu Jeon Byung-Ik Kim Hyoung-Ook Kim Jun-ho Shin Department of Internal Medicine Kangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoul 110-746South Korea Department of Surgery Kangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoul 110-746South Korea

AIM： To determine the clinical data that might be useful for differentiating benign from malignant gallbladder （GB） polyps by comparing radiological methods, including abdominal ultrasonography （US） and computed tomography （CT） scanning, with postoperative pathology findings. METhoDS： Fifty-nine patients underwent laparoscopic cholecystectomy for a GB polyp of around 10 ram. They were divided into two groups, one with cholesterol polyps and the other with non-cholesterol polyps. Clinical features such as gender, age, symptoms, size and number of polyps, the presence of a GB stone, the radiologically measured maximum diameter of the polyp by US and CT scanning, and the measurements of diameter from postoperative pathology were recorded for comparative analysis. RESULTS： Fifteen of the 41 cases with cholesterol polyps （36.6%） were detected with US but not CT scanning, whereas all 18 non-cholesterol polyps were observed using both methods. In the cholesterol polyp group, the maximum measured diameter of the polyp was smaller by CT scan than by ***, the discrepancy between those two scanning measurements was greater than for the non- cholesterol polyp group. CONCLUSION： The clinical signs indicative of a cholesterol polyp include：（1） a polyp observed by US but not observable by CT scanning, （2） a smaller diameter on the CT scan compared to US, and （3） a discrepancy in its maximum diameter between US and CT measurements. In addition, US and the CT scan had low accuracy in predicting the polyp diameter compared to that determined by postoperative pathology.

关键词： Cholesterol Polyps Gallbladder Computed tomography Ultrasonography

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Comparison of clinical outcomes between culprit vessel only and multivessel percutaneous coronary intervention for ST-segment elevation myocardial infarction patients with multivessel coronary diseases

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Journal of Geriatric Cardiology 2015年第3期12卷 208-217页

作者： Kwang Sun Ryu Hyun Woo Park Soo ho Park ho Sun Shon Keun ho Ryu Dong Gyu Lee Mohamed EA Bashir Ju Hee Lee Sang Min Kim Sang Yeub Lee Jang Whan Bae Kyung Kuk hwang Dong Woon Kim Myeong Chan Cho Young Keun Ahn Myung ho Jeong Chong Jin Kim Jong Seon Park Young Jo Kim Yang Soo Jang Hyo Soo Kim Ki Bae Seung Database and Bioinformatics Laboratory School of Electrical and Computer Engineering Chungbuk National University Cheongju Chungbuk South Korea Human Genome Center Institute of Medical Science University of Tokyo Minatoku Tokyo Japan Faculty of Computer Science and Information Technology University of Meddcal Sciences and Technology Khartoum Sudan Regional Curdiovcascular Disease Center Chungbuk National University Ho spital Cheonglu Chungbuk South Korea Division of Cardiology Department of Internal Medicine College of Medicine Chungbuk National University Cheongju Chungbuk South Korea Department of Cardiology Chonnam National University Hospital Donggu Gwangju South Korea Department of Internal Medicine Kyunghee University Gangdong Hospital Seoul South Korea Department of Internal Medicine Yeungnam University Hospital Medical Center Daegu South Korea Division of Cardiology Yonsei University Severance Hospital Seoul South Korea Cardiovascular Center and Department of Internal Medicine Seoul National University Hospital Seoul South Korea Department of Cardiovascular Medicine Catholic University St. Mary's Hospital Seoul South Korea

Background The clinical significance of complete revascularization for ST segment elevation myocardial infarction （STEMI） pa- tients during admission is still debatable. Methods A total of 1406 STEMI patients from the Korean Myocardial Infarction Registry with multivessel diseases without cardiogenic shock who underwent primary percutaneous coronary intervention （PPCI） were analyzed. We used propensity score matching （PSM） to control differences of baseline characteristics between culprit only intervention （CP） and multivessel percutaneous coronary interventions （MP）, and between double vessel disease （DVD） and triple vessel disease （TVD）. The major adverse cardiac event （MACE） was analyzed for one year after discharge. Results TVD patients showed higher incidence of MACE （14.2% vs. 8.6%, P = 0.01）, any cause of revascularization （10.6% vs. 5.9%, P - 0.01）, and repeated PCI （9.5% vs. 5.7%, P = 0.02）, as compared to DVD patients during one year after discharge. MP reduced MACE effectively （7.3% vs. 13.8%, P = 0.03）, as compared to CP for one year, but all cause of death （1.6% vs. 3.2%, P= 0.38）, Ml （0.4% vs. 0.8%, P = 1.00）, and any cause ofrevascularization （5.3% vs. 9.7%, P = 0.09） were comparable in the two treatment groups. Conclusions STEMI patients with TVD showed higher rate of MACE, as compared to DVD MP performed during PPCI or ad hoc during admission for STEMI patients without cardiogenic shock showed lower rate of MACE in this large scaled database. Therefore, MP could be considered as an effective treatment option for STEMI patients without cardiogenic shock.

关键词： Culprit only intervention Multivessel intervention Multivessel coronary disease Myocardial infarction Primary percutaneous coronary intervention

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Optimal initiation of Helicobacter pylori eradication in patients with peptic ulcer bleeding

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World Journal of Gastroenterology 2015年第8期21卷 2497-2503页

作者： Hyuk Yoon Dong ho Lee Eun Sun Jang Jaihwan Kim Cheol Min Shin Young Soo Park Jin-Hyeok hwang Jin-Wook Kim Sook-Hayng Jeong Nayoung Kim Departments of Internal Medicine Seoul National University Bundang Hospital

AIM:To evaluate when Helicobacter pylori(***)eradication therapy(ET)should be started in patients with peptic ulcer bleeding(PUB).METhoDS:Clinical data concerning adults hospitalizedwith PUB were retrospectively collected and ***,sex,type and stage of peptic ulcer,whether endoscopic therapy was performed or not,methods of *** detection,duration of hospitalization,and specialty of the attending physician were *** influencing the confirmation of *** infection prior to discharge were determined using multiple logistic regression *** *** eradication rates of patients who received ET during hospitalization and those who commenced ET as outpatients were ***:A total of 232 patients with PUB were evaluated for *** infection by histology and/or rapid urease *** these patients,53.7%(127/232)had confirmed results of *** infection prior to *** multivariate analysis,duration of hospitalization and ulcer stage were factors independently influencing whether *** infection was confirmed before or after *** the patients discharged before confirmation of *** infection,13.3%(14/105)were lost to *** the patients found to be ***-positive after discharge,41.4%(12/29)did not receive *** was no significant difference in the *** eradication rate between patients who received ET during hospitalization a n d t h o s e w h o c o m m e n c e d E T a s o u t p a t i e n t s[intention-to-treat:68.8%(53/77)vs 60%(12/20),P=0.594;per-protocol:82.8%(53/64)vs 80%(12/15),P=0.723].CONCLUSION:Because many patients with PUB who were discharged before *** infection status was confirmed lost an opportunity to receive ET,we should confirm *** infection and start ET prior to discharge.

关键词： Helicobacter pylori Peptic ulcer hemorrhage Diseas

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Multiphase cooperation for multilevel strain accommodation in a single-crystalline BiFeO_(3) thin film

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Chinese Physics B 2024年第9期33卷 57-66页

作者： Wooseon Choi Bumsu Park Jaejin hwang Gyeongtak Han Sang-Hyeok Yang Hyeon Jun Lee Sung Su Lee Ji Young Jo Albina Y.Borisevich Hu Young Jeong Sang ho Oh Jaekwang Lee Young-Min Kim Department of Energy Science Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Samsung Electronics Hwaseong 18448Republic of Korea Department of Physics Pusan National UniversityBusan 46241Republic of Korea LG Energy Solution Daejeon 34122Republic of Korea Department of Materials Science and Engineering Kangwon National UniversityRepublic of Korea School of Materials Science and Engineering Gwangju Institute of Science and Technology(GIST)Gwangju 61005Republic of Korea Center for Nanophase Materials Sciences Oak Ridge National LaboratoryTN 37831USA Graduate School of Semiconductor Materials and Devices Engineering Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea Department of Energy Engineering KENTECH Institute for Energy Materials and DevicesKorea Institute of Energy Technology(KENTECH)Naju 58330Republic of Korea

The functionalities and diverse metastable phases of multiferroic BiFeO_(3)(BFO)thin films depend on the misfit *** mixed phase-induced strain relaxation in multiphase BFO thin films is well known,it is unclear whether a singlecrystalline BFO thin film can accommodate misfit strain without the involvement of its ***,understanding the strain relaxation behavior is key to elucidating the lattice strain–property *** this study,a correlative strain analysis based on dark-field inline electron holography(DIH)and quantitative scanning transmission electron microscopy(STEM)was performed to reveal the structural mechanism for strain accommodation of a single-crystalline BFO thin *** nanoscale DIH strain analysis results indicated a random combination of multiple strain states that acted as a primary strain relief,forming irregularly strained *** STEM-based bond length measurement of the corresponding strained nanodomains revealed a unique strain accommodation behavior achieved by a statistical combination of multiple modes of distorted structures on the unit-cell *** globally integrated strain for each nanodomain was estimated to be close to􀀀1.5%,irrespective of the nanoscale strain states,which was consistent with the fully strained BFO film on the SrTiO_(3) *** functional theory calculations suggested that strain accommodation by the combination of metastable phases was energetically favored compared to single-phase-mediated *** discovery allows a comprehensive understanding of strain accommodation behavior in ferroelectric oxide films,such as BFO,with various low-symmetry polymorphs.

关键词： BiFeO_(3) scanning transmission electronmicroscopy electron holography multiferroic material strain mapping

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A Routing Metric Based on Available Bandwidth Routing in Wireless Mesh Networks

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Journal of Measurement Science and Instrumentation 2011年第3期2卷 264-267页

作者： Ji-soo LEE Jun-ho hwang Myung-sik YOO School of Electronic Engineering Soongsil University

Wireless Mesh Network has drawn much attention due to wide area service coverage with low system cost and being easy to ***,WMN suffers from high bit error rate,which provides different link capacity among wireless mesh *** conventional routing metrics select the path based on link *** link with the best quality is preferred as the data transmission path,and thus all nodes likely select the same link,which leads to network performance *** paper proposes a routing metric that considers the available bandwidth and the number of nodes suffering congestion in the *** is confirmed that the proposed method provides higher network performance of reduced delay,reduced packet loss and increased throughput than conventional routing metrics.

关键词： routing metric overload aware available bandwidth multi-channel wireless mesh network

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Association between hepatocellular carcinoma and tumor necrosis factor alpha polymorphisms in South Korea

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World Journal of Gastroenterology 2015年第46期21卷 13064-13072页

作者： Suk Pyo Shin Nam Keun Kim Ju Hwan Kim Ju ho Lee Jung Oh Kim Sung Hwan Cho Hana Park Mi Na Kim Kyu Sung Rim Seong Gyu hwang Department of Internal Medicine CHA Bundang Medical CenterCHA University Institute of Gastroenterology CHA Bundang Medical CenterCHA University Department of Biomedical Science College of Life ScienceCHA University Institute for Clinical Research CHA Bundang Medical CenterCHA University Department of Internal Medicine CHA Gangnam Medical CenterCHA University

AIM: To investigate associations between the tumor necrosis factor alpha(TNF-α)-1031 T>C,-863 C>A,-857 C>T,-308 G>A,and-238 G>A polymorphisms and HCC in ***: Hepatocellular carcinoma(HCC) cases were diagnosed at CHA Bundang Medical Center from June 1996 to August 2008. The association between TNF-α polymorphisms and HCC was analyzed in 157HCC patients and 201 controls using a polymerase chain reaction-restriction fragment length polymorphism assay. We investigated five TNF-α polymorphisms,which are TNF-α-1031 T>C,-863 C>A,-857 C>T,-308 G>A,and-238 G>A. The TNF-α genotype frequencies,genotype combinations and haplotypes were analyzed to disclose the association with ***: None of the TNF-α polymorphisms was significantly associated with HCC. however,nine genotype combinations had associations with increased likelihood of HCC. Among them,TNF-α-1031/-857/-238 TT/CC/GA(AOR = 18.849,95%CI: 2.203-161.246,P = 0.007),TNF-α-1031/-308/-238 TT/GG/GA(AOR = 26.956,95%CI: 3.071-236.584,P = 0.003),and TNF-α-1031/-238 TT/GA(AOR = 21.576,95%CI: 2.581-180.394,P = 0.005) showed marked association with HCC. There were five haplotypes of TNF-α polymorphisms which were significantly associated with HCC. They are TNF-α-1031/-863/-857/-308/-238 T-C-C-G-A(OR = 25.824,95%CI: 1.491-447.223,P = 0.0005),TNF-α-1031/-857/-308/-238 T-C-G-A(OR = 12.059,95%CI: 2.747-52.950,P hose with the TT genotype(AOR = 5.795,95%CI: 1.145-29.323). CONCLUSION: Although no single TNF-α polymorphism is associated with HCC in this study,some TNF-α genotype combinations and haplotypes are associated with HCC. In addition,HCC Okuda stage Ⅲ cases with the TNF-α-1031 TT genotype may have a better pr

关键词： Tumor necrosis factor-alpha Polymorphism Single nu

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Dipsacussaponin C from <i>Dipsacus asper</i>Reduces the Risk of Gastritis and Gastric Ulcer in Rats

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Food and Nutrition Sciences 2012年第7期3卷 931-941页

作者： Seon A. hwang In Young hwang Joohee Jung Hye Kyung Kang Kun ho Son Choon Sik Jeong College of Pharmacy Duksung Women’s University Seoul 132-714 South Korea College of Pharmacy Duksung Women’s University Seoul Korea Department of Food Science and Nutrition Andong National University Gyeongbuk 760-749 South Korea

The roots of Dipsacus asper (DA) have been used as a tonic and analgesic agent in traditional Chinese medicine for the treatment of osteoporosis, low back pain, knee pain, and as an anti-inflammatory agent. Few studies have reported pharmacological gastric activities. In this study, we investigated the effects of dipsacussaponin C (DSC) and 70% ethanol and water extracts of DA on gastritis and gastric ulcer in rat. First, we examined the free radical scavenging effect by the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging assay. Second, we examined the Helicobacter pylori (H. pylori) colonization inhibitory effect and found that DSC has a mild anti-H. pylori effect. Third, the cytotoxicity was assessed by measuring the cell viability of human gastric cancer cells (SNU638 and AGS). Also, we observed the acid-neutralizing capacity by measuring NaOH consumption volume and found that DSC is effective as an antacid agent. For these reasons, we observed the effect of DSC on HCl?ethanol-induced gastritis and indomethacin-induced gastric ulcer in rat. In pylorus-ligated rats, DSC (200 mg/kg) also decreased the volume of gastric secretion (approximately 2.2 mL) and gastric acid output (0.16 mEq/4 hrs). From these results, we suggest that DSC isolated from DA may be useful for the treatment and/or protection of gastritis and gastric ulcer.

关键词： Dipsacussaponin C Dipsacusasper Antioxidants Gastritis Gastric Ulcer

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