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Oh HY, Choi HH, Kim EJ, Choi JH, Choi SS, Lee HK, Kim HK, Kim SW, Park WSH, Chae HS. In vitro and in vivo phototoxicity on gastric mucosa induced by methylene blue. Saudi J Gastroenterol 2023; 29:53-58. [PMID: 36571385 PMCID: PMC10117009 DOI: 10.4103/sjg.sjg_315_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Methylene blue (MB) is used endoscopically to demarcate tumors and as a photosensitizer in photodynamic therapy (PDT). However, there are few in vivo studies about its toxicity in healthy stomach tissue. We performed sequential in vitro and in vivo analyses of MB-induced phototoxicity. METHODS We performed in vitro experiments using the AGS human gastric cancer cell line treated with light-emitting diode (LED) irradiation (3.6 J/cm2) and MB. Cytotoxicity was evaluated using terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) assay. In vivo toxicity was evaluated in the stomach of beagles using the same dose of fiber-optic LED via gastroscopy, after spraying 0.1% and 0.5% MB solutions. Stomach tissue was also evaluated using the TUNEL assay. RESULTS In vitro, increased concentrations of MB led to higher TUNEL scores. However, cell viability was significantly lower after MB plus LED irradiation than after treatment with MB alone (P < 0.001). In vivo, the TUNEL score was highest immediately after treatment with 0.1% or 0.5% MB plus light irradiation, and the score was significantly higher in the LED illumination plus MB group than in the control group (P < 0.05). The elevated TUNEL score was maintained for 3 days in the MB plus light irradiation group but returned to normal levels on day 10. CONCLUSIONS : Endoscopic light application with MB 0.5% concentration to the stomach may be regarded as a safe procedure despite some DNA injuries in the early period.
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Affiliation(s)
- Hui Yeong Oh
- Department of Internal Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyun Ho Choi
- Department of Internal Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eui Jin Kim
- Department of Internal Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji Hye Choi
- Department of Internal Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung Sook Choi
- College of Pharmacy, Sahmyook University, Seoul, Republic of Korea
| | - Hae Kyung Lee
- Department of Laboratory Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyung-Keun Kim
- Department of Internal Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang Woo Kim
- Department of Internal Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Won Sang H Park
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Sin SH, Yoon JH, Kim SW, Park WS, Chae HS. A Case of Sporadic Multiple Colonic Polyps in a Young Woman. Curr Oncol 2023; 30:1293-1299. [PMID: 36826061 PMCID: PMC9955090 DOI: 10.3390/curroncol30020100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/11/2023] [Accepted: 01/15/2023] [Indexed: 01/19/2023] Open
Abstract
Sporadic colorectal cancer arises from an adenoma. As mutations in the adenomatous polyposis coli (APC) tumor suppressor gene have been frequently detected in colorectal adenomas, the APC gene is considered a gatekeeper in colorectal carcinogenesis. Here, we report a case of sporadic multiple colonic adenomas that were accompanied by an APC-truncating mutation. A 25-year-old Korean woman presented with dozens of incidentally found colonic polyps. There was no family history of colorectal polyposis or colon cancer in her first or second-degree relatives. All the polyps were removed endoscopically at once, and their pathological examination revealed tubular adenoma. Mutational analysis showed a 2-bp deletion mutation at codon 443, which generates a premature stop codon at codon 461 of the APC gene, and Western blot analysis demonstrated both wild-type and truncated APC proteins in adenoma tissue. This study suggests that a single truncating mutation of the APC gene may initiate adenoma formation.
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Affiliation(s)
- Seung Ho Sin
- Department of Internal Medicine, Uijeongbu St. Mary’s Hospital, 271, Cheonbo-ro, Uijeongbu-si 11765, Gyeonggi-do, Republic of Korea
| | - Jung Hwan Yoon
- Department of Pathology and Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea
| | - Sang Woo Kim
- Department of Internal Medicine, Uijeongbu St. Mary’s Hospital, 271, Cheonbo-ro, Uijeongbu-si 11765, Gyeonggi-do, Republic of Korea
| | - Won Sang Park
- Department of Pathology and Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea
- Correspondence: (W.S.P.); (H.S.C.)
| | - Hiun Suk Chae
- Department of Internal Medicine, Uijeongbu St. Mary’s Hospital, 271, Cheonbo-ro, Uijeongbu-si 11765, Gyeonggi-do, Republic of Korea
- Correspondence: (W.S.P.); (H.S.C.)
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Kim EJ, Sohn TS, Choi HH, Oh HY, Park SH, Cho YC, Jung JO, Sohn JS, Lee HK, Choi SS, Chae HS. High Levels of Akkermansia muciniphilia Growth Associated With Spring Water Ingestion Prevents Obesity and Hyperglycemia in a High-fat Diet-Induced Mouse Model. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221111037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: Type 2 diabetes may be alleviated by mineral water (MW) ingestion. We investigated whether spring water (SW) (a kind of mixed MW) ingestion influences metabolic parameters via alteration of the gut microbiota in high-fat diet (HFD)-fed mice. Method: We divided 32 C57/BL mice into 4 equal groups: normal diet with tap water (Control), high-fat diet with tap water (HFD), normal diet with SW (SW), and high-fat diet with SW (HFD + SW). During this experiment, we checked the body weight (BW) with fasting blood sugar (FBS) every week and all mice were sacrificed in the 17th week to observe serological markers, internal organs, and composition of gut microbiota. Results: The BW of HFD-fed mice was significantly higher than that of mice fed an HFD + SW diet in the early period of the experiment. Fasting blood glucose (FBG) in the HFD group showed a fluctuating pattern compared to the HFD + SW group, and the area under the curve (AUC) value of the oral glucose tolerance test (OGTT) was significantly greater in the HFD group than in the HFD + SW group. Serologic markers were not significantly different between the HFD and HFD + SW groups. Histologically, the most severe fatty changes in the liver were observed in the HFD group. Lastly, the gut levels of Akkermansia muciniphilia were 100-fold higher in the HFD + SW group than in the HFD mice. Conclusion: These findings indicate that SW ingestion, and the associated high levels of A muciniphilia growth in the gut, may improve the early stage of obesity and ameliorate HFD-induced hyperglycemia.
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Affiliation(s)
- Eui Jin Kim
- College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Tae Seo Sohn
- College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Hyun Ho Choi
- College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Hui Yeong Oh
- College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Sang Ho Park
- College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Young-Chang Cho
- College of Pharmacy, Chonnam National University, Gwangju, Korea
| | - Jin-Oh Jung
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeollabuk-do, Korea
| | - Jeong Sun Sohn
- College of General Education, Chosun University, Gwangju, Korea
| | - Hae Kyung Lee
- College of Medicine, Laboratory Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | | | - Hiun Suk Chae
- College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
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Kim KY, Lee HK, Kim H, Kim Y, Kim Y, Choi HH, Kim SW, Kim HK, Chae HS. Stromal cell-derived factor-1 as a serologic biomarker for the diagnosis of colon ischemia with chronic cardiovascular disease. Medicine (Baltimore) 2020; 99:e20539. [PMID: 32502013 PMCID: PMC7306348 DOI: 10.1097/md.0000000000020539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Colon ischemia (CI) is the most common ischemic disorder of the gastrointestinal tract. Although some markers of CI, such as procalcitonin and alkaline phosphatase, have been reported, few specific serum markers have been identified. We investigated whether serum stromal cell-derived factor-1 (SDF-1) is a specific marker of CI and clarified the relationship between serum SDF-1 level and CI according to a history of combined chronic cardiovascular disease (CVD).We measured SDF-1 level and other serological markers in 84 patients (control, n = 20; CI without chronic CVD, n = 21; chronic CVD without CI, n = 20; CI with chronic CVD, n = 23).Patients with CI were older than those without CI. There were more women in the CI groups than those without CI. At admission, SDF-1 level was significantly higher in patients having CI with chronic CVD (P < .001) than in other groups. SDF-1 level was significantly higher at admission than at discharge in patients having CI with chronic CVD (P < .001) but not in patients having CI without chronic CVD. SDF-1 level did not differ according to symptoms, involved sites, or duration of hospitalization. At a cutoff value of 0.5 pg/mL for the SDF-1 level in patients having CI with chronic CVD, the sensitivity and specificity for SDF-1 were 91.3% and 95%, respectively. The area-under-the-curve (AUC) value was 0.95. In the logistic regression analysis, an elevation of the SDF-1 level to >0.5 pg/mL was a significant indicator of CI with chronic CVD [odds ratio (OR), 114.914; 95% confidence interval, 10.51 to >999.999; P < .001].SDF-1 could be a useful early biomarker for the diagnosis of CI in patients with chronic CVD.
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Affiliation(s)
- Ka Young Kim
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hae Kyung Lee
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyunjung Kim
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yeongsic Kim
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yonggoo Kim
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyun Ho Choi
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang Woo Kim
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyung Keun Kim
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Choi SS, Oh HY, Kim EJ, Lee HK, Kim HK, Choi HH, Kim SW, Chae HS. In Vitro Bactericidal Effects of Photodynamic Therapy Combined with Four Tetracyclines against Clostridioides difficile KCTC5009 in Planktonic Cultures. Pathogens 2020; 9:pathogens9040279. [PMID: 32290477 PMCID: PMC7238217 DOI: 10.3390/pathogens9040279] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/09/2020] [Accepted: 04/09/2020] [Indexed: 12/15/2022] Open
Abstract
Surface disinfection in health-care facilities is critical to prevent dissemination of Clostridioides difficile (C. difficile). Tetracyclines (TCs) are broad-spectrum antibiotics that are associated with a low risk of development of C. difficile infection (CDI) and are used as photosensitizers (PS) in photodynamic therapy (PDT). We evaluated whether TCs may be useful environmental cleansing agents. We compared the in vitro ability to kill C. difficile of four TCs (TC, doxycycline, minocycline, and tigecycline) combined with PDT using ultraviolet A (UVA). We included chitosan, a cationic material, as a booster to increase the photodynamic bactericidal efficacy of TCs. PDT-induced bactericidal effects were assessed by the number of viable cells and the degree of DNA damage and membrane integrity. To avoid the intrinsic antibacterial activity of TCs at high concentrations, we used low concentrations of TCs (0.05 and 0.1 mg/mL). The bactericidal effect of treatment with chitosan plus PDT was over 100 times higher than that with PDT alone for each of the four TCs. DNA damage measured by ethidium bromide monoazide and real-time quantitative polymerase chain reaction was also greater for PDT plus chitosan treatment than for PDT alone or under control conditions: the threshold cycle (Ct) values for the control, PDT, and PDT plus chitosan were 14.67 ± 0.22, 20.46 ± 0.12, and 25.54 ± 0.17, respectively. All four TCs caused similar levels of severe cell membrane damage during PDT compared with control conditions. These data suggest that PDT combined with any of the four TCs plus chitosan might be an available tool to kill efficiently planktonic form of C. difficile.
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Affiliation(s)
- Sung Sook Choi
- College of Pharmacy, Sahmyook University, Seoul 01795, Korea;
| | - Hui Yeong Oh
- Internal Medicine Uijongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.Y.O.); (E.J.K.); (H.K.K.); (H.H.C.); (S.W.K.)
| | - Eui Jin Kim
- Internal Medicine Uijongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.Y.O.); (E.J.K.); (H.K.K.); (H.H.C.); (S.W.K.)
| | - Hae Kyung Lee
- Department of Laboratory Medicine Uijongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Hyung Keun Kim
- Internal Medicine Uijongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.Y.O.); (E.J.K.); (H.K.K.); (H.H.C.); (S.W.K.)
| | - Hyun Ho Choi
- Internal Medicine Uijongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.Y.O.); (E.J.K.); (H.K.K.); (H.H.C.); (S.W.K.)
| | - Sang Woo Kim
- Internal Medicine Uijongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.Y.O.); (E.J.K.); (H.K.K.); (H.H.C.); (S.W.K.)
| | - Hiun Suk Chae
- Internal Medicine Uijongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.Y.O.); (E.J.K.); (H.K.K.); (H.H.C.); (S.W.K.)
- Correspondence: ; Tel.: +82-31-820-3019; Fax: +82-31-847-2719
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Kim EJ, Choi JH, Yang HJ, Choi SS, Lee HK, Cho YC, Kim HK, Kim SW, Chae HS. Comparison of high and low molecular weight chitosan as in-vitro boosting agent for photodynamic therapy against Helicobacter pylori using methylene blue and endoscopic light. Photodiagnosis Photodyn Ther 2019; 26:111-115. [PMID: 30836214 DOI: 10.1016/j.pdpdt.2019.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 01/28/2019] [Accepted: 03/01/2019] [Indexed: 01/15/2023]
Abstract
BACKGROUND We reported in a previous study that photodynamic therapy (PDT) of Helicobacter pylori(H. pylori) could potentiate bactericidal effect by adding chitosan. As a next step, we compared the bactericidal effects of low molecular weight (LMW) combined with Photodynamic Therapy to high molecular weight (HMW) chitosan. METHOD To perform PDT to kill H. pylori, we used endoscopic light as light source, methylene blue (MB) as a photosensitizer and chitosan (310-375, 50-190 kDa). We evaluated bacterial removal rate and its membrane damage by ethidium bromide monoazide PCR method (EMA q-PCR). 8-oxo-2'-dexoyguanosine by ELISA was measured for oxidative stress. RESULTS At a chitosan concentration of ≤0.05%, the killing effect did not differ between the two molecular weights, and 100% bacterial removal rate was observed at a light energy ≥ 6.23 mJ/cm2 powers under 0.02% MB. After 15 min irradiation, LMW chitosan with high concentration of MB (0.004%) showed highest killing effects, which were consistent with the results of EMA q-PCR but not with the level of 8-OHdG. Bactericidal effects of LMW chitosan plus PDT using 0.002 and 0.004% MB for 15 min irradiation were significantly higher than those using HMW chitosan plus PDT. CONCLUSION We found that PDT using methylene blue with LMW chitosan to kill H. pylori exerted greater bactericidal effects through bacterial membrane damage than PDT with HMW chitosan. These results suggest that it would be better to choose LMW chitosan to enhance the effect of PDT for clinical application, even at a very low concentration of PS.
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Affiliation(s)
- Eui Jin Kim
- Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Ji Hye Choi
- Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hyun Jung Yang
- Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Sung Sook Choi
- College of Pharmacy, Sahmyook University, Seoul, South Korea
| | - Hae Kyung Lee
- Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Young-Chang Cho
- College of Pharmacy, Chonnam National University, Gwangju, South Korea
| | - Hyung Keun Kim
- Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Sang Woo Kim
- Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hiun Suk Chae
- Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
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Kim YS, Lee DH, Chae HS, Han K. Changing Disease Trends in the Northern Gyeonggi-do Province of South Korea from 2002 to 2013: A Big Data Study Using National Health Information Database Cohort. Osong Public Health Res Perspect 2018; 9:248-254. [PMID: 30402380 PMCID: PMC6202018 DOI: 10.24171/j.phrp.2018.9.5.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Objectives To investigate the chronological patterns of diseases in Northern Gyeonggi-do province, South Korea, and compare these with national data. Methods A National Health Insurance cohort based on the National Health Information Database (NHID Cohort 2002–2013) was used to perform a retrospective, population-based study (46,605,433 of the target population, of which 1,025,340 were randomly sampled) to identify disease patterns from 2002 to 2013. Common diseases including malaria, cancer (uterine cervix, urinary bladder, colon), diabetes mellitus, psychiatric disorders, hypertension, intracranial hemorrhage, bronchitis/bronchiolitis, peptic ulcer, and end stage renal disease were evaluated. Results Uterine cervix cancer, urinary bladder cancer and colon cancer had the greatest rate of increase in Northern Gyeonggi-do province compared with the rest of the country, but by 2013 the incidence of these cancers had dropped dramatically. Acute myocardial infarction and end stage renal disease also increased over the study period. Psychiatric disorders, diabetes mellitus, hypertension and peptic ulcers showed a gradual increase over time. No obvious differences were found for intracranial hemorrhage or bronchitis/bronchiolitis between the Northern Gyeonggi-do province and the remaining South Korean provinces. Malaria showed a unique time trend, only observed in the Northern Gyeonggi province, peaking in 2004, 2007 and 2009 to 2010. Conclusion This study showed that the Northern Gyeonggi-do province population had a different disease profile over time, compared with collated data for the remaining provinces in South Korea. “Big data” studies using the National Health Insurance cohort database can provide insight into the healthcare environment for healthcare providers, stakeholders and policymakers.
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Affiliation(s)
- Young Soo Kim
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Dong-Hee Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Hiun Suk Chae
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Sung H, Kim MN, Yong D, Lee M, Lee J, Lee MK, Chae HS, Lee HK. Multicenter Study on the Association of Positive Helicobacter pylori Stool Antigen to Anemia in Children. Ann Clin Microbiol 2018. [DOI: 10.5145/acm.2018.21.3.58] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Heungsup Sung
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Mi-Na Kim
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dongeun Yong
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Miae Lee
- Department of Laboratory Medicine, Ewha Womans University Mokdong Hospital, Ewha Womans University College of Medicine, Seoul, Korea
| | - Jongwook Lee
- Department of Laboratory Medicine, Konyang University Hospital, Daejeon, Korea
- Department of Laboratory Medicine, Jincheon Sungmo Hospital, Jincheon, Korea
| | - Mi-Kyung Lee
- Department of Laboratory Medicine, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Hae Kyung Lee
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
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Lee YB, Lee SY, Choi JY, Lee JH, Chae HS, Kim JW, Han KD, Park YG, Yu DS. Incidence, prevalence, and mortality of Adamantiades-Behçet's disease in Korea: a nationwide, population-based study (2006-2015). J Eur Acad Dermatol Venereol 2017; 32:999-1003. [PMID: 28940547 DOI: 10.1111/jdv.14601] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/05/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND The epidemiology of Adamantiades-Behçet's disease varies among ethnic populations worldwide. Trends in the incidence of Adamantiades-Behçet's disease have not been investigated based on the Korean National Health Insurance database. OBJECTIVES This study investigated the incidence and mortality of Adamantiades-Behçet's disease by age using nationwide population data in Korea. METHODS A nationwide population-based cohort study was performed using the Korean National Health Insurance Claims Database from 2006 to 2015. The incidence of Adamantiades-Behçet's disease was calculated by age, sex, calendar year and habitat. And comorbid metabolic diseases were also analysed in patients with Adamantiades-Behçet's disease. RESULTS The annual incidence of Adamantiades-Behçet's disease per 100 000 person-years was 3.976 (2.587 for males and 5.373 for females) from 2006 to 2015. The incidence of Adamantiades-Behçet's disease peaked among people in their 40s (6.561 per 100 000 person-years). Incidence was significantly higher in subjects with comorbid metabolic conditions, such as diabetes mellitus, hypertension and dyslipidemia. The mortality rate per 1000 person-years increased with age in patients with Adamantiades-Behçet's disease. CONCLUSIONS This study showed the incidence, prevalence and mortality of Adamantiades-Behçet's disease. Metabolic conditions increased the risk of Adamantiades-Behçet's disease among Koreans.
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Affiliation(s)
- Y B Lee
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - S Y Lee
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J Y Choi
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J H Lee
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - H S Chae
- Department of Internal Medicine, The Catholic University of Korea, Seoul, South Korea
| | - J W Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - K D Han
- Department of Medical Statistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Y G Park
- Department of Medical Statistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - D S Yu
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kim YS, Kim HY, Ahn HS, Sohn TS, Song JY, Lee YB, Lee DH, Lee JI, Jeong SC, Chae HS, Han K, Yeo CD. The Association between Tobacco Smoke and Serum Immunoglobulin E Levels in Korean Adults. Intern Med 2017; 56:2571-2577. [PMID: 28883244 PMCID: PMC5658521 DOI: 10.2169/internalmedicine.8737-16] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective Smoking is common in patients with allergic diseases. The aim of this study was to evaluate the cross-sectional association between the current smoking status and total and specific Immunoglobulin E (IgE) levels in Korean adults. Methods Data were obtained from the 2010 Korean National Health and Nutrition Examination Survey, a national cross-sectional study. We analyzed the data of subjects whose smoking status and serum IgE levels were of acceptable quality. Results A total of 1,963 subjects (1,118 never smokers, 340 ex-smokers, and 505 current smokers) were included. The total IgE levels and specific IgE levels to house dust mite Dermatophagoides farinae (Df), cockroach, and dog allergens in never smokers were significantly (p<0.0001) lower than in ex-smokers or current smokers. After adjusting for other variables, current smokers independently had significantly higher levels of total IgE and cockroach-specific IgE than ex-smokers or never smokers. The proportions of subjects with total IgE ≥150 kU/L and specific IgE ≥0.35 kU/L to Df-specific IgE were significantly (p value for trend <0.05) increased in ex-smokers and current smokers. The total IgE levels and IgE levels specific to Df, cockroaches, and dogs significantly (p value for trend <0.05) and proportionally increased with increasing numbers of cigarettes smoked daily. Conclusion Smoking was associated with elevated total IgE levels and IgE levels specific to Df, cockroach, and dog allergens in a cumulative, dose-dependent manner. Furthermore, current smoking status was an independent risk factor for elevated total IgE levels and IgE levels specific to cockroach allergen.
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Affiliation(s)
- Young Soo Kim
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Hee Yeon Kim
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Hyo-Suk Ahn
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Tae Seo Sohn
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Jae Yen Song
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Young Bok Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Dong-Hee Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Jae-Im Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Seong Cheol Jeong
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Hiun Suk Chae
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Kyungdo Han
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
| | - Chang Dong Yeo
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea
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Lee YB, Yu J, Choi HH, Jeon BS, Kim HK, Kim SW, Kim SS, Park YG, Chae HS. The association between peptic ulcer diseases and mental health problems: A population-based study: a STROBE compliant article. Medicine (Baltimore) 2017; 96:e7828. [PMID: 28834889 PMCID: PMC5572011 DOI: 10.1097/md.0000000000007828] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
This study aimed to investigate the association between the prevalence of peptic ulcer disease (PUD) and mental health problems, such as severe stress, depressive mood, and suicidal ideation.The population-based cross-sectional study was comprised of 14,266 subjects participating in the fourth annual Korea National Health and Nutrition Examination survey from 2007 to 2009. The participants were divided into 2 groups according to the self-reported questionnaires: the PUD group and the non-PUD group. The association between PUD and mental health problems, such as severe stress, depressed mood, suicidal ideation, and psychological counseling history, were evaluated by using multivariate analysis and logistic regression.Among the 14,266 participants over 19-years old, 813 participants (5.6%) had PUD. Compared to the non-PUD group (n = 13,453), the PUD group had a significantly higher percentage of males, current smokers, and heavy drinkers, lower education status, lower income, and greater presence of diabetes mellitus, hypertension, metabolic syndrome and mental health problems, including severe stress, depressed mood, suicidal ideation, and psychological counseling history. After adjustment for lifestyle and medical and environmental factors, mental health problems were found to be associated with a significantly higher risk for PUD.Psychological problems, such as severe stress, depressed mood, suicidal ideation, and psychological counseling, were associated with PUD prevalence.
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Affiliation(s)
- Young Bok Lee
- Department of Dermatology, The Catholic University of Korea
| | - Jihan Yu
- Department of Internal Medicine, HeeMyoung General Hospital
| | | | | | | | | | | | - Yong Gyu Park
- Department of Medical Statistics, The Catholic University of Korea, Seoul, South Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, HeeMyoung General Hospital
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12
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Kim HY, Sohn TS, Seok H, Yeo CD, Kim YS, Song JY, Lee YB, Lee DH, Lee JI, Lee TK, Jeong SC, Hong M, Chae HS. Prevalence and risk factors for reduced pulmonary function in diabetic patients: The Korea National Health and Nutrition Examination Survey. Korean J Intern Med 2017; 32:682-689. [PMID: 28142231 PMCID: PMC5511936 DOI: 10.3904/kjim.2016.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 04/11/2016] [Accepted: 05/03/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND/AIMS An association between reduced pulmonary function and diabetes has been observed. Our aim was to evaluate the prevalence and risk factors associated with reduced pulmonary function in diabetic patients. METHODS We analyzed data from the Korea National Health and Nutrition Examination Survey 2011 to 2013. The study population included data from 8,784 participants (including 1,431 diabetics) aged ≥ 40 years. Reduced pulmonary function was defined as patients with restrictive (forced expiratory volume in 1 second/forced vital capacity [FEV1/FVC] ≥ 0.7 and FVC < 80% of predicted value) or obstructive (FEV1/FVC < 0.7) patterns. RESULTS Subjects with diabetes had a higher prevalence of restrictive (18.4% vs. 9.4%, p < 0.001) and obstructive impairments (20% vs. 12.6%, p < 0.001) than those without diabetes. The adjusted odds ratios (aORs) (95% confidence interval [CI]) for obstructive and restrictive pulmonary impairment were 0.91 (0.75 to 1.11) and 1.57 (1.30 to 1.89), respectively. In the diabetes population, age (aOR, 1.04; 95% CI, 1.02 to 1.06), male sex (aOR, 1.40; 95% CI, 1.04 to 1.88), and body mass index (aOR, 1.15; 95% CI, 1.10 to 1.21) were independently associated with restrictive pulmonary impairment. Age (aOR, 1.12; 95% CI, 1.09 to 1.14), male sex (aOR, 4.24; 95% CI, 2.42 to 7.44), and smoking at any point (ever-smoker: aOR, 1.96; 95% CI, 1.16 to 3.33) were independent risk factors for obstructive pulmonary impairment in diabetics. Diabetes duration or glycated hemoglobin had no association with pulmonary impairment in diabetes. CONCLUSIONS Subjects with diabetes had a higher risk of restrictive pulmonary impairment than those without diabetes after adjusting for confounding factors. Older age, male sex, body mass index, and smoking were associated with reduced lung function in diabetes.
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Affiliation(s)
- Hee Yeon Kim
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Tae Seo Sohn
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Hannah Seok
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Chang Dong Yeo
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Young Soo Kim
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Jae Yen Song
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Young Bok Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Dong-Hee Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Jae-Im Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Tae-Kyu Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Seong Cheol Jeong
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Mihee Hong
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Hiun Suk Chae
- Epidemiology Study Cluster of Uijeongbu St. Mary’s Hospital, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
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Choi HH, Cho YS, Choi SK, Kim HK, Kim SS, Chae HS, Shin OR. Clinical Outcomes of Endoscopic Removal in Patients with Colorectal Polypoid Leiomyomas. Korean J Gastroenterol 2017; 68:179-185. [PMID: 27780941 DOI: 10.4166/kjg.2016.68.4.179] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background/Aims Although polypoid leiomyomas in the colon and rectum are rare, they are increasingly detected during colonoscopy. The aim of this study was to evaluate the efficacy and clinical outcomes of endoscopic removal for colorectal polypoid leiomyoma. Methods Data were retrospectively collected from 22 patients with polypoid leiomyoma arising from the muscularis mucosae in the colon and rectum who underwent endoscopic removal at single referral gastrointestinal endoscopy unit. Colonoscopic findings, endoscopic removal, success rates, complication rates (bleeding or perforation), pathologic characteristics, and recurrence rates were investigated. Results Most polypoid leiomyomas were small asymptomatic lesions less than 1 cm. The tumors were located predominantly in the left colon. Ten leiomyomas were removed using cold biopsy forceps, and 12 were resected by conventional polypectomy or endoscopic mucosal resection. All tumors arose from or involved the muscularis mucosa. There were no complications, such as bleeding or perforation. No local remnant lesions were found in 19 patients who underwent at least one follow-up colonoscopy. Conclusions This case series represent cases of small colorectal polypoid leiomyoma that were safely removed endoscopically. An awareness of their endoscopic and clinic-pathological characteristics may provide safe treatment strategy for colonic leiomyomatous tumors of similar size in capable hands.
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Affiliation(s)
- Hyun Ho Choi
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University, Uijeongbu, Korea
| | - Young Seok Cho
- Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University, Seoul, Korea
| | - Soo Kyoung Choi
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University, Uijeongbu, Korea
| | - Hyung Keun Kim
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University, Uijeongbu, Korea
| | - Sung Soo Kim
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University, Uijeongbu, Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University, Uijeongbu, Korea
| | - Ok Ran Shin
- Department of Hospital Pathology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University, Uijeongbu, Korea
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Hong M, Park JB, Kim YS, Lee DH, Kim H, Lee JI, Ahn HS, Sohn TS, Lee TK, Song JY, Jeong SC, Yeo CD, Chae HS, Do Han K, Vu D, Lee YB. Association between Cockroach-specific Immunoglobulin E and periodontitis in Korean male adults Based on Korean National Health and Nutrition Examination Survey. Sci Rep 2017; 7:46373. [PMID: 28401926 PMCID: PMC5388886 DOI: 10.1038/srep46373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 03/15/2017] [Indexed: 01/22/2023] Open
Abstract
Periodontitis is an inflammatory disease affecting the tooth supporting tissues (periodontium) and associated with chronic diseases such as cardiovascular disease and insulin resistance. However, there has been no nation-wide population based epidemiologic study regarding any association between periodontitis and serum IgE. Among the 8,958 participants in the 2010 Korean National Health and Nutrition Examination Survey (KNHANES V-1), 1,731 adults aged 19 to 64 who had measured serum IgE were included in the analysis. Dentists examined the periodontal status of the participants. Multiple logistic regression analyses were used to evaluate the odds ratio of periodontitis in association with total IgE and specific IgE to cockroach and house dust mite. In males, total IgE showed a positive correlation with the presence of periodontitis. The participants in the highest tertile of cockroach specific IgE (T3, >31.6 kU/L) had a significantly increased risk of periodontitis (OR = 2.108; 95% CI, 1.233–3.606). In females, the inverse association occurred between total IgE and periodontitis (OR = 0.409; 95% CI, 0.200–0.839). The present study firstly demonstrated the association between periodontitis and serum IgE, using the Korean nationwide, population-based, cross-sectional health examination and survey. This study suggested a positive correlation between periodontitis and cockroach-specific IgE in Korean male adults.
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Affiliation(s)
- Mihee Hong
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jun-Beom Park
- Department of Periodontics, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Young Soo Kim
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Dong-Hee Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - HeeYeon Kim
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jae-Im Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hyo-Suk Ahn
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Tae Seo Sohn
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Tae-Kyu Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jae Yen Song
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Seong Cheol Jeong
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Chang Dong Yeo
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hiun Suk Chae
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Kyung Do Han
- Department of Biostatistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - David Vu
- Wing Dental Center, Alberta, Canada
| | - Young Bok Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Lee YB, Kim SY, Park YG, Han KD, Kim JW, Chae HS, Lee YC. Evaluation of socioeconomic status as a risk factor of pterygium using the Korean National Health and Nutrition Examination Survey 2010 to 2011: A STROBE-compliant article. Medicine (Baltimore) 2017; 96:e6343. [PMID: 28296766 PMCID: PMC5369921 DOI: 10.1097/md.0000000000006343] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pterygium is a common conjunctival disorder. The socioeconomic risk factors of pterygium have not been systematically evaluated in Korea. The study investigated risk factors of pterygium considering socioeconomic status.Participants were 9839 adults aged 19 to 74 years, who underwent ophthalmic slit-lamp examinations as part of the Korean National Health and Nutrition Examination Survey 2010 to 2011. Pterygium was diagnosed as a growth of fibrovascular tissue over the cornea. The socioeconomic risk factors were analyzed in association with the presence of pterygium. Multiple logistic regression analysis was used to evaluate the odds ratios for differences in socioeconomic status.The presence of pterygium was associated with diabetes mellitus, hypertension, metabolic syndrome, and sun exposure time (>5 h/d). The blood level of 25-hydroxyvitamin D was higher in the pterygium group than in the control group, but both groups were deficient in 25-hydroxyvitamin D compared with the normal reference level. Pterygium was almost 3 times as frequent among persons who worked outdoors, such as skilled agricultural, forestry, and fishery workers, than among those who worked indoors (odds ratio 3.061, 95% confidence interval 1.946-4.813). Low educational status and longer working hours were also significantly associated with pterygium.This study used a nationwide population-based survey conducted by the Korean Centers for Disease Control and Prevention to reveal that pterygium is associated with low socioeconomic status. Efforts should be made to reduce the risk of pterygium by changing modifiable risk factors, especially among people with low socioeconomic status.
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Affiliation(s)
| | | | | | | | | | - Hiun Suk Chae
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kim YS, Kim HY, Ahn HS, Sohn TS, Song JY, Lee YB, Lee DH, Lee JI, Lee TK, Jeong SC, Hong M, Chae HS, Han K, Yeo CD. Glomerular filtration rate affects interpretation of pulmonary function test in a Korean general population: results from the Korea National Health and Nutrition Examination Survey 2010 to 2012. Korean J Intern Med 2016; 31:1101-1109. [PMID: 26996347 PMCID: PMC5094924 DOI: 10.3904/kjim.2015.148] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 06/22/2015] [Accepted: 07/06/2015] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND/AIMS The pulmonary abnormalities (principally restrictive abnormalities) are characteristic of renal transplant recipients or those with end-stage renal disease. Our aim was to explore whether the prevalence of spirometric abnormalities was influenced by the estimated glomerular filtration rates (GFRs) in a Korean general population. METHODS We used data obtained during the 2010 to 2012 Korean National Health and Nutrition Examination Survey, a national cross-sectional survey. We analyzed data from subjects for whom spirometric assays and estimated GFRs were of acceptable quality. RESULTS A total of 8,809 subjects (3,868 male and 4,941 female) was included. In both males and females with GFR values < 60 mL/min/1.73 m2, the linear trends toward the presence of obstructive and restrictive patterns were significant. However, the percent predicted forced vital capacity (FVC) decreased with a decline in the estimated GFR, but only in males (p for trend < 0.0031). Multivariate linear regression analysis showed a decline in the estimated GFR was independently associated with falls in the percent predicted FVC and the forced expiratory volume in 1 second/FVC ratio in both males and females. However, the percent predicted FVC was independently predictive only in males (p = 0.002). CONCLUSIONS Impaired pulmonary function was associated with a decline in the estimated GFR. The percent predicted FVC decrease paralleled the decline in estimated GFR in male only. Careful interpretation of pulmonary function test data is required in patients with decreased GFRs or impaired renal function, especially males.
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Affiliation(s)
- Young Soo Kim
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Hee Yeon Kim
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Hyo-Suk Ahn
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Tae Seo Sohn
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Jae Yen Song
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Young Bok Lee
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Dong-Hee Lee
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Jae-Im Lee
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Tae-Kyu Lee
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Seong Cheol Jeong
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Mihee Hong
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Hiun Suk Chae
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chang Dong Yeo
- Epidemiology Study Cluster, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Korea
- Correspondence to Chang Dong Yeo, M.D. Division of Pulmonology, Department of Internal Medicine, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, 271 Cheonbo-ro, Uijeongbu 11765, Korea Tel: +82-31-820-3893 Fax: +82-31-820-3747 E-mail:
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Hong M, Kim HY, Seok H, Yeo CD, Kim YS, Song JY, Lee YB, Lee DH, Lee JI, Lee TK, Ahn HS, Ko YH, Jeong SC, Chae HS, Sohn TS. Prevalence and risk factors of periodontitis among adults with or without diabetes mellitus. Korean J Intern Med 2016; 31:910-9. [PMID: 27604799 PMCID: PMC5016291 DOI: 10.3904/kjim.2016.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 06/13/2016] [Accepted: 07/28/2016] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND/AIMS This study examined prevalence and risk factors of periodontitis in representative samples of Korean adults, with and without diabetes mellitus (DM). METHODS Data from the 2012 Korean National Health and Nutritional Examination Survey were analyzed. A total of 4,477 adults (≥ 30 years old) were selected from 8,057 individuals who completed a nutrition survey, a self-reported general health behavior questionnaire, an oral examination, an oral hygiene behaviors survey, and laboratory tests. DM was defined as a fasting plasma glucose ≥ 126 mg/dL, or self-reported diagnosed diabetes, or current use of oral hypoglycemic agents and/or insulin. The community periodontal index was used to assess periodontitis status and comparisons between the periodontitis and the non-periodontitis group, were performed, according to the presence of DM. Risk factors for periodontitis in adults with DM and without DM were evaluated by multiple logistic regression analysis. RESULTS The prevalence of periodontitis was significantly higher in adults with DM (43.7%) than in those without DM (25%, p < 0.001). In adults without DM, risk factors for periodontitis were older age, male, urban habitation, waist circumference, smoking, oral pain, and less frequent tooth brushing. Significant risk factors for periodontitis in adults with DM were the smoking, oral pain, and not-using an oral hygiene product. CONCLUSIONS Adults with DM have an increased risk of periodontitis than those without DM. Current smoking and oral pain increase this risk. Using an oral hygiene product can reduce risk of periodontal disease in adults with DM.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Tae Seo Sohn
- Correspondence to Tae Seo Sohn, M.D. Department of Internal Medicine, College of Medicine, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, 271 Cheonbo-ro, Uijeongbu 11765, Korea Tel: +82-31-820-3652 Fax: +82-31-847-2719 E-mail:
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Kim YS, Lee DH, Chae HS, Lee TK, Sohn TS, Jeong SC, Kim HY, Lee JI, Song JY, Yeo CD, Lee YB, Ahn HS, Hong M, Han K. Disability of Hearing Impairment Is Positively Associated With Urine Albumin/Creatinine Ratio in Korean Adults: The 2011-2012 Korea National Health and Nutrition Examination Survey. Clin Exp Otorhinolaryngol 2016; 9:212-9. [PMID: 27416740 PMCID: PMC4996098 DOI: 10.21053/ceo.2015.01368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 10/05/2015] [Accepted: 10/06/2015] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES The aim of this study was to determine whether chronic kidney disease (CKD) is associated with hearing thresholds in the nationwide, large-scaled Korean population. METHODS This study analyzed the data of 9,798 subjects of 19 years and older (4,387 males and 5,411 females). Urine albumin-to-creatinine ratio (ACR) was measured from first-voided spot urine samples. The air-conduction hearing threshold was measured at 0.5, 1, 2, 3, 4, and 6 kHz and pure tone audiogram (PTA) average was calculated as the four-frequency average of 0.5, 1, 2, and 4 kHz. RESULTS Urine ACR was significantly correlated with the PTA average of better ear in both genders, especially at 3 and 6 kHz in males and at 1, 3, 4, and 6 kHz in females. After adjusting, urine ACR also increased the risk of hearing loss in female, especially if urine ACR was 30 mg/g and more (odds ratio, 1.636-2.229. This study showed that the degree of hearing loss was significantly different according to categories of urine ACR in both genders. Hearing loss without disability was found less but that with bilateral hearing disability was found more as urine ACR increased. In generally, prevalence of hearing loss with disability was higher in males than females. CONCLUSION This study demonstrated that urine ACR was significantly correlated with the PTA average of better ear in Korean adults of both genders. This study suggests that clinicians should carefully monitor the hearing level for subjects with elevated urine ACR, even though high urine ACR within the normal range.
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Affiliation(s)
- Young Soo Kim
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Dong-Hee Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Hiun Suk Chae
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Tae-Kyu Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Tae Seo Sohn
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Seong Cheol Jeong
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Hee Yeon Kim
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Jae-Im Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Jae Yen Song
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Chang Dong Yeo
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Young Bok Lee
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Hyo-Suk Ahn
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Mihee Hong
- Epidemiology Study Cluster of Uijeongbu St. Mary's Hospital, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Lee HH, Kim SK, Choi HH, Kim HK, Kim SS, Chae HS, Cho H, Cho YS. Post-colonoscopy colorectal cancers in average-risk Korean subjects with a normal initial colonoscopy. Turk J Gastroenterol 2016; 27:17-22. [DOI: 10.5152/tjg.2015.150286] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
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Jung YS, Park DI, Ye BD, Cheon JH, Kim YS, Kim YH, Kim JS, Chae HS, Baik GH, Han DS. Long-term clinical outcomes of urban versus rural environment in Korean patients with Crohn's disease: results from the CONNECT study. J Crohns Colitis 2015; 9:246-51. [PMID: 25602024 DOI: 10.1093/ecco-jcc/jjv003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AIMS Environmental factors and genetic predisposition are thought to play important roles in the pathogenesis of Crohn's disease [CD]. Although numerous studies have reported the positive association between urban environment and CD development, few studies have compared the clinical outcomes between urban and rural environments. Therefore, this study aimed to compare the clinical characteristics and long-term prognosis between urban and rural populations of patients with CD. METHODS This retrospective multicenter cohort study included 1002 Korean patients diagnosed with CD [743 urban residents and 259 rural residents] between 1982 and 2008 from 32 medical centers. The clinical outcomes of urban versus rural populations were compared using the KaplanMeier method and log-rank test. RESULTS Disease distribution and behavior of the urban population did not differ from those of the rural population. There were no significant differences in the cumulative probabilities of perianal fistula [P = 0.086] and intestinal complications such as stricture [P = 0.109], fistula [P = 0.952], abscess [P = 0.227], and perforation [P = 0.382] between the two groups. In addition, no significant differences were observed between the two groups with regard to the cumulative probabilities of immunosuppressant use [P = 0.527] and biologic agent use [P = 0.731]. Although the cumulative probability of surgery in the urban population was significantly higher than that in the rural population [P = 0.040], this difference was mainly established within the first year from diagnosis [19.1% vs 13.5%, P = 0.042] and observed only among patients diagnosed in 2005-2008 [P = 0.033]. CONCLUSIONS There were no differences in terms of disease presentation and natural history between urban and rural populations, except for a higher rate of surgery in the urban population who were recently diagnosed with CD.
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Affiliation(s)
- Yoon Suk Jung
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Dong Il Park
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Byong Duk Ye
- Department of Gastroenterology and Inflammatory Bowel Disease Center, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jae Hee Cheon
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - You Sun Kim
- Department of Internal Medicine, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Young Ho Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, Uijeongbu St Mary's Hospital, College of Medicine, Catholic University of Korea, Uijeongbu, Korea
| | - Gwang Ho Baik
- Department of Internal Medicine, ChunCheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon-si, Korea
| | - Dong Soo Han
- Department of Internal Medicine, Hanyang University College of Medicine, Guri, Korea
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Choi SS, Lee HK, Chae HS. Synergistic in vitro photodynamic antimicrobial activity of methylene blue and chitosan against Helicobacter pylori 26695. Photodiagnosis Photodyn Ther 2014; 11:526-32. [PMID: 25174558 DOI: 10.1016/j.pdpdt.2014.08.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 08/19/2014] [Accepted: 08/20/2014] [Indexed: 01/26/2023]
Abstract
BACKGROUND Photodynamic therapy (PDT) is a method for killing cells (bacterial, fungal and cancer cells) or virus using photosensitizers (PS) and light of various wavelengths. In vitro PDT using endoscopic light against H. pylori was effective at a concentration of 0.2mg/mL of MB. The purpose of this study was to increase the effect of photodynamic modality against H. pylori by addition of chitosan to MB. METHODS The bactericidal effect was measured by counting viable cells after PDT. The degree of damage to DNA was confirmed using alkaline gel electrophoresis. Cellular DNA damage was demonstrated by ethidium bromide monoazide-quantitative polymerase chain reaction (EMA-qPCR). RESULTS In the groups treated with either 0.04 mg/mL MB alone or 0.02 mg/mL MB with endoscopic light for 15 min, viable cells were decreased approximately tenfold. The group treated with 0.04 mg/mL of MB with light, showed more effective bactericidal activity than 0.02 mg/mL of MB treatment. By 0.05% chitosan pre-treatment followed with 0.04 mg/mL of MB and light irradiation, viable cells were decreased 10(7)-fold. The DNA damage caused by PDT as demonstrated by alkaline gel electrophoresis was greater in the MB plus chitosan-treated group than in control and MB-treated groups. Cellular DNA damage demonstrated by EMA-qPCR was also greater in the group treated with MB plus chitosan than in the MB-treated group. CONCLUSION The bactericidal effects with PDT using MB were increased with the concentration of photosensitizer and chitosan treatment, peculiarly before endoscopic light irradiation.
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Affiliation(s)
- Sung Sook Choi
- College of Pharmacy, Sahmyook University, Seoul, Republic of Korea
| | - Hae Kyung Lee
- Department of Laboratory Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hiun Suk Chae
- Internal Medicine, Uijongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Affiliation(s)
- Yoon Jung Choi
- Department of Dermatology, Uijeongbu St Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, Korea
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Kim YJ, Kim HK, Cho YS, Kim SS, Chae HS, Kim SK, Kim ES, Lee SY. Air in the main pancreatic duct: A case of innocent air. World J Gastroenterol 2012; 18:5142-4. [PMID: 23049228 PMCID: PMC3460346 DOI: 10.3748/wjg.v18.i36.5142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2012] [Revised: 05/16/2012] [Accepted: 05/26/2012] [Indexed: 02/06/2023] Open
Abstract
Air in the main pancreatic duct has been reported only rarely and might be associated with either a spontaneous or a surgically induced alteration of the anatomy of the biliary tract. We report a case of “innocent” air found incidentally in the main pancreatic duct. To our knowledge, this is only the third such case reported. A 54-year-old woman presented with hemoptysis that had lasted for 3 d. She underwent a chest computed tomography scan, which revealed not only focal bronchiectasis in the left lower lobe, but also air in the main pancreatic duct and dilatation of the common bile duct. She was managed conservatively for the hemoptysis and no further problems developed. She had no specific gastrointestinal symptoms and had no history of surgery or medication. Her laboratory parameters were normal. Magnetic resonance cholangiopancreatography also demonstrated air in the main pancreatic duct and a dilated common bile duct (CBD). Duodenoscopy revealed separate biliary and pancreatic orifices with patulous openings and some air bubbles appearing in the pancreatic orifice. Endoscopic retrograde cholangiopancreatography (ERCP) showed the dilated CBD and pancreatic duct with some air bubbles, but no other abnormal lesions. She was discharged with no further problems. Most patients with air in the main pancreatic duct have had a pancreatobiliary disease, or a history of pancreatobiliary disease, pancreatobiliary surgery or sphincterotomy. If the air is innocent, as in our case, ERCP should be performed to evaluate any altered sphincteric function or anatomy such as patulous openings.
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Chae HS, Kang OH, Keum JH, Kim SB, Mun SH, Seo YS, Kim MR, Choi JG, Shin DW, Oh YC, Ma JY, Kwon DY. Anti-inflammatory effects of Hylomecon hylomeconoides in RAW 264.7 cells. Eur Rev Med Pharmacol Sci 2012; 16 Suppl 3:121-125. [PMID: 22957426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND AND OBJECTIVES Papaveraceae serve as a rich source of various alkaloids which have anti-inflammatory effect. MATERIALS AND METHODS In this study, we investigated the effect of Hylomecon hylomeconoides ethanol extract (HHE) on lipopolysaccharide (LPS)-induced NO and interleukin-6 (IL-6) production in RAW 264.7 cells. RESULTS HHE inhibited LPS-induced NO and IL-6 production. Moreover, HHE suppressed the phosphorylation of ERK1/2 and p38 in LPS-induced RAW 264.7 in a dose-dependent manner. Furthermore, major constituents, dihydrosanguinarine and 6-methoxydihydrosanguinarine, of the chloroform-soluble extract were analyzed. CONCLUSIONS Taken together, the results of this study indicate that the anti-inflammatory effects of HHE may occur via the inhibition of NO and IL-6 expression through the down-regulation of MAP kinase (ERK1/2, p38) phosphorylation in RAW 264.7 cells.
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Affiliation(s)
- H S Chae
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang University, Wonkwang, Republic of Korea
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Choi JG, Lee MW, Choi SE, Kim MH, Kang OH, Lee YS, Chae HS, Obiang-Obounou B, Oh YC, Kim MR, Shin DW, Lee JH, Kwon DY. Antibacterial activity of bark of Alnus pendula against methicillin-resistant Staphylococcus aureus. Eur Rev Med Pharmacol Sci 2012; 16:853-859. [PMID: 22953631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND AND OBJECTIVES Methicillin-resistant Staphylococcus aureus (MRSA) infections are a rapidly growing health problem around the globe. Recently, there has been considerable interest in the use of plant materials as an alternative method to control pathogenic microorganisms. In this study we evaluated the antibacterial activity of bark of Alnus pendula against MRSA. MATERIALS AND METHODS The MIC determination was done using the microdilution broth method and bacterial growth was determined by measuring optical density using spectrophotometer. RESULTS Alnus pendula bark EtOH extract and fractions (F-1, -2, -3 and -4) were investigated against MRSA. The most active fractions (F-3 and F-4) led to the isolation of oregonin (ORE) and hirsutanone (HIR). These compounds were active against MRSA strains with minimum inhibitory concentrations (MICs) ranging from 31.25 to 250 microg/ml MIC and 2 MIC of HIR completely inhibited the growth of MRSA. CONCLUSIONS The bark EtOH extract of Alnus Pendula has potent antibacterial activity against MRSA.
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Affiliation(s)
- J G Choi
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang University, Wonkwang Oriental Medicines Research Institute, Jeonbuk, Republic of South Korea
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Chae HS, Jang GE, Kim NH, Son HR, Lee JH, Kim SH, Park GN, Jo HJ, Kim JT, Chang KS. Classification of Cryptococcus neoformans and yeast-like fungus isolates from pigeon droppings by colony phenotyping and ITS genotyping and their seasonal variations in Korea. Avian Dis 2012; 56:58-64. [PMID: 22545529 DOI: 10.1637/9703-030711-reg.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Cryptococcus neoformans (C neoformans) is a frequent cause of invasive fungal disease in immunocompromised human hosts. Ninety-eight samples of pigeon droppings were collected from the pigeon shelters in Seoul, and cultured on birdseed agar (BSA) and Sabouraud dextrose agar (SDA). One hundred yeast-like colonies were selected and identified via phenotype characteristics, such as colony morphology and biochemical characteristics. This was then followed with genotyping via sequencing of the internal transcribed spacer (ITS) region. The colonies were classified into four kinds of colony color types: brown type (BrT), beige type (BeT), pink type (PT), and white type (WT). Numbers of isolated BrT, BeT, PT, and WT colonies were 22 (22%), 30 (30%), 19 (19%), and 39 (39%), respectively. All BrT colonies were identified as C neoformans. BeT were identified as 19 isolates of Cryptococcus laurentii, 10 isolates of Malassezia furfur, and 1 isolate of Cryptococcus uniguttulatus. PT was divided into two colony color types: light-PT (l-PT) and deep-PT (d-PT). Eighteen of l-PT and one of d-PT were identified as Rhodotorula glutinis and Rhodotorula mucilaginosa, respectively. WT were identified as 34 isolates of Cryptococcus guilliermondii, 3 isolates of Cryptococcus zeylanoides, 1 isolate of Cryptococcus sake, and 1 isolate of Stephanoascus ciferrii. Most strains were classified identically with the use of either phenotype or genotyping techniques, but C uniguttulatus and C sake classified by phenotyping were Pseudozyma aphidis and Cryptococcus famata by genotyping. This rapid screening technique of pathogenic yeast-like fungi by only colony characteristics is also expected to be very useful for primary yeast screening. Additionally, we investigated the seasonal variations of C neoformans and other yeast-like fungi from 379 pigeon-dropping samples that were collected from February 2011 to March 2011. We isolated 685 yeast-like fungi from the samples. Almost all C neoformans and yeast-like fungi were isolated in the fall (298 strains, 43.5%) and spring (244 strains, 35.6%). A few yeast-like fungi were isolated in winter (98 strains, 14.3%) and summer (45 strains, 6%). These results would be used as an important indicator related to epidemiology and prevention of pathogenic yeast-like fungi infections transmitted through pigeon droppings.
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Affiliation(s)
- H S Chae
- Seoul Metropolitan Government Research Institute of Public Health & Environment, Yang-Jae dong, Seo-Cho Gu, Seoul 137-131, Republic of Korea
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Zhang XH, Shin JY, Kim JO, Oh JE, Chae HS, Kang JH. Abstract 4896: Synergistic anti-tumor activity of CDK4/6 inhibitor combined with paclitaxel in NSCLC cells harboring mutant KRAS. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-4896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Deregulation of the p16INK4A-cyclin D-cyclin-dependent kinases (CDK) 4/6-retinoblastoma (RB) pathway is frequently observed in various cancers and represents one of the attractive therapeutic targets. The gain of function mutation in KRAS gene confers intrinsic resistance to targeted anti-cancer drugs as well as cytotoxic chemotherapeutic agents leading to treatment failure. More effective treatment for adenocarcinomas harboring KRAS mutations should be developed to improve clinical outcomes. Purpose: CINK4, a chemical inhibitor of cyclin-dependent kinase 4, has demonstrated potent anti-proliferative activity in the presence of pRb. Herein, when combined with paclitaxel, we investigated that CINK4 may increase its anti-proliferative activity in the NSCLC cells harboring KRAS mutant. Methods: We measured the anti-proliferative activities of CINK4 in A549 (KRAS mutant), H358 (KRAS mutant), SK-LU-1 (KRAS mutant), H23 (KRAS mutant), PC14 (KRAS wild), and Calu-3 (KRAS wild) cell lines using SRB assay, cell cycle distribution quantified by flow cytometric analysis, and the expression of cell cycle regulators and apoptosis-related proteins was evaluated by Western blotting. Multiple drug effect was analyzed to study an interaction between two drugs. The nature of the interaction between two agents was calculated for the combination index (CI). Results: Concentration- and time- dependent anti-proliferative effects of CINK4 (0.1∼ 40 µM concentration range) and paclitaxel (0.1∼300 nM) alone were observed in six NSCLC cell lines, and were not significantly different between each cell line (48 h IC50: 10.4 ± 0.2 µM and 5.5 ± 0.9 nM, 10.1± 1.9 µM and 5.2 ± 0.9 nM, 6.6 ± 0.8 µM and 3.6 ± 1.0 nM, 8.6 ± 0.8 µM and >10 nM, 8.9 ± 0.5 µM and 3.5 ± 0.2 nM, and 8.4 ± 0.2 µM and > 10 nM, in A549, H358, PC14, and Calu-3, SKLU-1, and H23 cells, respectively). After 48 h CINK4 treatment alone, the G0/G1phase cell population increased with increment of subG1 faction in concentration-dependent manner. CINK4 reduced cyclinD1 and Rb phosphorylation and increase the expression of cleaved PARP in concentration-dependent manner in A549, H358, and PC14 cells. The CINK4 combined with paclitaxel in four KRAS mutant cell lines enhanced anti-proliferative activity of paclitaxel. The CI values of CINK4 and palitaxel in A549, H358, SKLU-1 and H23 were 0.51 ± 0.16, 0.63± 0.12, 0.60 ± 0.15, and 0.55 ± 0.15, respectively. Conclusions: Taken together, our data suggest that CINK4 alone has promising anti-tumor activity in NSCLC cells with or without KRAS mutation. In addition, CDK4/6 inhibitor in combined with paclitaxel demonstrated more enhanced anti-tumor activity in NSCLC cells harboring mutant KRAS.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 4896. doi:1538-7445.AM2012-4896
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Affiliation(s)
- Xiang-Hua Zhang
- 1Laboratory of Medical Oncology, Research Institutes of Medical Science, Catholic University, Seoul, Republic of Korea
| | - Jung-Young Shin
- 1Laboratory of Medical Oncology, Research Institutes of Medical Science, Catholic University, Seoul, Republic of Korea
| | - Jeong-Oh Kim
- 1Laboratory of Medical Oncology, Research Institutes of Medical Science, Catholic University, Seoul, Republic of Korea
| | - Ji-Eun Oh
- 1Laboratory of Medical Oncology, Research Institutes of Medical Science, Catholic University, Seoul, Republic of Korea
| | - Hiun Suk Chae
- 2Uijongbu St. Mary's Hospital, Uijongbu, Republic of Korea
| | - Jin-Hyoung Kang
- 3Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
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Shin JY, Zhang XH, Kim JO, Oh JE, Chae HS, Joe YA, Kang JH. Abstract 1291: Tumor growth inhibitory effect in EIF4B silenced in vitro and in vivo lung cancer models. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-1291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Backgraound The eIF4B, a key molecule for initiation of protein translation, play an important role in cell growth, proliferation and survival. We investigated that eIF4B is associated with the molecular mechanism of de novo resistance against EGFR TKIs and its role on cell proliferation and survival in NSCLC cells. Method Among five NSCLC cell lines harboring EGFR and K-RAS wild type, PC14 cells showing the highest IC50, were selected for our experiment. In eIF4B silenced PC14 cells by shRNA, we evaluated cell proliferation by direct cell counts and SRB assay and cell cycle distribution using flow cytometry. The expression of signal molecules, transcription factors and apoptosis associated proteins was measured by Western blot. In vivo tumor model established by subcutaneous injection of eIF4B silenced PC14 cells, the retardation of tumor growth was measured. Results In PC14 cells transformed with eIF4B shRNA, we observed the protein expression of eIF4B was reduced (>70% at day 5). The proliferation of eIF4B silenced cells was greatly inhibited both in vitro and in vivo tumor model. Between eIF4B silenced cells and control cells, there was no significant difference in anti-proliferative activity of several target inhibitors (enzastaurin, gefitinib, LY294002, vandetanib) against EGFR-PI3K-AKT signaling molecules. The expression of proteins involved in cell survival (pEGFR, pAKT and mTOR), transcription factors (pNFkB and TS) and anti-apoptotic protein (bcl-2), was decreased and apoptosis associated proteins (phospho-p53 and active caspase-3) were increased. The G0/G1 cell fraction in eIF4B silenced cells was reduced (47.3% vs. 55.1% in control cells) and accumulation of apoptotic cells was observed (12.7% vs. 1.5% in control cells; shown as sub G1 population). Conclusion Our results demonstrated that eIF4B silencing resulted in a marked decrease of several anti-apoptotic and pro-proliferative proteins and eIF4B was required for cell proliferation and survival by regulating cell cycle and cell signaling molecules.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 1291. doi:1538-7445.AM2012-1291
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Affiliation(s)
| | | | - Jeong-Oh Kim
- 1The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji-Eun Oh
- 1The Catholic University of Korea, Seoul, Republic of Korea
| | - Hiun Suk Chae
- 2Division of Medical Gastroenterology, Department of Internal Medicine, College of Medicine, Catholic University, Uijeongbu, Republic of Korea
| | - Young Ae Joe
- 3Cancer Research Institute and Department of Medical Lifescience, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Won HS, Maeng LS, Chae HS, Kim HK, Cho YS, Kang JH, Jang HS, Ryu MR. Sequential Changes in Aberrant Crypt Foci and Lectin Expression in the Early and Late Stages of DMH-Induced Colon Carcinogenesis in Rats. Gut Liver 2012; 6:229-34. [PMID: 22570753 PMCID: PMC3343162 DOI: 10.5009/gnl.2012.6.2.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 10/08/2011] [Accepted: 10/28/2011] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND/AIMS The purpose of this study was to investigate the malignant potential of aberrant crypt foci (ACF) by measuring the multiplicity of crypts and lectin expression in the early and late stages of 1,2-dimethylhydrazine (DMH)-induced colon carcinogenesis. METHODS Six-week-old Wistar rats were injected subcutaneously with DMH for 27 weeks. We classified ACF according to the number of crypts per ACF as a few crypts (≤3 crypts, FC ACF) or numerous crypts (≥4 crypts, NC ACF). Immunohistochemistry was used to evaluate lectin expression. RESULTS In the early stage, FC ACF (590/1,902, 31.0%) occurred more frequently than NC ACF (35/449, 7.8%); whereas in the late stage, NC ACF (176/449, 39.2%) occurred more frequently than FC ACF (324/1,902, 17.0%). The number of ACF peaked at 15 to 20 weeks. The ratio of NC/FC ACF increased gradually during carcinogenesis. The expression of both UEA1 and PNA was higher in NC ACF than FC ACF. Lectin expression increased in the late stage compared with the early stage. CONCLUSIONS The expression of lectin was higher in NC ACF and ACF in the late stage. Therefore, ACF with higher multiplicities in the late stage may have more malignant potential in DMH-induced colon carcinogenesis.
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Affiliation(s)
- Hye Sung Won
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, Uijeongbu, Korea
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Kim EJ, Chung WC, Lee KM, Paik CN, Jung SH, Lee BI, Chae HS, Choi KY. Association between toll-like receptors/CD14 gene polymorphisms and inflammatory bowel disease in Korean population. J Korean Med Sci 2012; 27:72-7. [PMID: 22219617 PMCID: PMC3247778 DOI: 10.3346/jkms.2012.27.1.72] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Accepted: 11/01/2011] [Indexed: 12/19/2022] Open
Abstract
The innate immune response in patients who develop inflammatory bowel disease (IBD) may be abnormal. However, the exact role of Toll-like receptors (TLRs) / CD14 gene in the pathogenesis of IBD has not been fully elucidated. We aimed to investigate the association between polymorphisms of TLR1, 2, 4, 6, and CD14 gene and susceptibility to IBD in Korean population. A total 144 patients of IBD (99 patients with ulcerative colitis, 45 patients with Crohn's disease) and 178 healthy controls were enrolled. Using a PCR-RFLP, we evaluated mutations of TLR1 (Arg80Thr), TLR2 (Arg753Gln and Arg677Trp), TLR4 (Asp299Gly and Thr399Ile), TLR6 (Ser249Pro) genes and the -159 C/T promoter polymorphism of CD14 gene. No TLR polymorphisms were detected in Korean subjects. T allele and TT genotype frequencies of CD14 gene were significantly higher in IBD patients than in healthy controls. In subgroup analysis, T allelic frequency was higher in pancolitis phenotype of ulcerative colitis. In Korean population, the promoter polymorphism at -159 C/T of the CD14 gene is positively associated with IBD, both ulcerative colitis and Crohn's disease.
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Affiliation(s)
- Eun Jung Kim
- Department of Internal Medicine, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea
| | - Woo Chul Chung
- Department of Internal Medicine, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea
| | - Kang-Moon Lee
- Department of Internal Medicine, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea
| | - Chang Nyol Paik
- Department of Internal Medicine, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea
| | - Sung Hoon Jung
- Department of Internal Medicine, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea
| | - Bo In Lee
- Department of Internal Medicine, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea
| | - Kyu Yong Choi
- Department of Internal Medicine, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea
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Abstract
We encountered a patient with hemolytic uremic syndrome (HUS) with persistent isolation of shiga toxin-producing Escherichia coli (STEC) for 3 weeks despite of having no clinical symptoms. STEC has been recognized as an important food-borne pathogen that causes severe diseases such as HUS. We characterized this STEC strain via a polymerase chain reaction, reverse-passive latex agglutination and the slide agglutination method. In this STEC strain, stx2 (shiga toxin), eaeA, tir, iha (adherence genes), espADB (type III secretion genes), and hlyA, ehxA, clyA (hemolysin genes) were present. The O antigen of the strain was non-typable.
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Affiliation(s)
- Seung-Hak Cho
- Division of Enteric Bacterial Infections, Center for Infectious Diseases, Korea National Institute of Health, Osong, Korea
| | - Jung-Beom Kim
- Division of Health Research and Planning, Gyeonggi-do Research Institute of Health and Environment, Suwon, Korea
| | - Yong-Bae Park
- Division of Health Research and Planning, Gyeonggi-do Research Institute of Health and Environment, Suwon, Korea
| | - Mi-Sun Park
- Division of Enteric Bacterial Infections, Center for Infectious Diseases, Korea National Institute of Health, Osong, Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, The Catholic University of Korea College of Medicine, Uijeongbu, Korea
| | - Hae Kyung Lee
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, The Catholic University of Korea College of Medicine, Uijeongbu, Korea
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Lee HK, Kim H, Chae HS, Choi SS, Kim HK, Cho YS, Maeng LS, Kim HN, Baik KH. Differences of urease activity and expression of associated genes according to gastric topography. Helicobacter 2011; 16:20-6. [PMID: 21241408 DOI: 10.1111/j.1523-5378.2010.00804.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND We hypothesize that pH difference between acid-secreting corpus and non-secreting antrum might influence the activity of H. pylori's urease and/or related genes. We therefore measured urease activity and the expression of amiE whose encoded protein that hydrolyzes short-chain amides to produce ammonia. MATERIALS AND METHODS Fifty-four patients were recruited into this study. Each gastroscopic biopsy specimen collected from the antrum and body of each patient was immediately used to measure urease activity using serial changes of urease activity (ammonia levels) during 60 minutes. Probe specific for amiE was labeled with a biotin nick-translation kit and was used to detect expression of these genes (mRNA) in fresh-frozen gastroscopic biopsy specimens using fluorescent in situ hybridization (FISH). RESULTS Urease activity at 60 minutes from the gastric antrum and body of all patients infected with H. pylori was 399.5 ± 490.5 and 837.9 ± 1038.9 μg/dL, respectively (p = .004). Urease activity in the antrum was correlated with H. pylori density. Urease activity or H. pylori density in the antrum was significantly correlated with chronic active inflammation; in contrast, this correlation was not found in the gastric body. The expression level of amiE was 1.5 times higher (p < .05) in the gastric body compared with the antrum. CONCLUSION Topographically, the urease activity in body was much higher than in antrum. The expression level of amiE was higher in the gastric body compared with the antrum.
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Affiliation(s)
- Hae Kyung Lee
- Department of Laboratory Medicine, Catholic University, Uijeongbu, Korea
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Choi JG, Kang OH, Lee YS, Oh YC, Chae HS, Obiang-Obounou B, Park SC, Shin DW, Hwang BY, Kwon DY. Antimicrobial activity of the constituents of Smallanthus sonchifolius leaves against methicillin-resistant Staphylococcus aureus. Eur Rev Med Pharmacol Sci 2010; 14:1005-1009. [PMID: 21375130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
BACKGROUND AND OBJECTIVES Methicillin-resistant Staphylococcus aureus (MRSA) has been a serious problem as its infection is associated with higher mortality and increase cost worldwide. In the present study, the antibacterial activity of enhydrin, polymatin B, allo-schkuhriolide from the leaves of Smallanthus sonchifolius was investigated. MATERIAL AND METHODS Enhydrin, polymatin B, allo-schkuhriolide from the leaves of Smallanthus sonchifolius were tested for antimicrobial activity using micro dilution broth method against 2 strains of ATCC 33591, ATCC 25923 and 15 strains of clinical isolates MRSA. RESULTS The antibacterial activity of Smallanthus sonchifolius can safely be attributed to enhydrin as polymatin B, and allo-schkuhriolide are not showing any activity against Staphylococcus aureus strains. The enhydrin showed good antibacterial activity against all tested strains (MIC = 125-500 microg/ml). DISCUSSION These results suggest that only enhydrin can be considered as an antibacterial drug against MRSA.
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Affiliation(s)
- J G Choi
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang University, Jeonbuk, Republic of Korea
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Kim SS, Cho YS, Kim HK, Shin OR, Chae HS, Choi MG, Chung IS. [The effect of rosiglitazone on the cell proliferation and the expressions of p27 and skp2 in helicobacter pylori infected human gastric epithelial cells]. Korean J Gastroenterol 2010; 55:225-31. [PMID: 20389175 DOI: 10.4166/kjg.2010.55.4.225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND/AIMS Ligands for peroxisome proliferator-activated receptorgamma (PPARgamma), a member of the ligand-activated nuclear receptor superfamily, exhibit anti-tumoral effects and are associated with de novo synthesis of proteins involved in regulating the cell cycle and cell survival/death. Helicobacter pylori (H. pylori) is an etiologic agent for gastric adenocarcinoma, and raises the cell turnover of gastric epithelium. The aim of this study was to investigate the effect of PPARgamma ligand rosiglitazone on the cell proliferation and the expressions of p27 and Skp2 protein in H. pylori infected gastric epithelial cells. METHODS We examined the expression of PPARgamma by Western blot in H. pylori infected AGS human gastric epithelial cells. The effect of rosiglitazone on the survival of H. pylori infected AGS cells was assessed by cell viability assay. After the treatment of rosiglitazone in H. pylori infected AGS cells, the expressions of p27 and Skp2 were assessed by Western blot. RESULTS The expression of PPARgamma protein was increased in H. pylori infected AGS cells. Cell growth was inhibited and decreased in dose- and time- dependent manner in H. pylori infected AGS cells treated with rosiglitazone. A decrease in Skp2 expression and a reciprocal increase in p27 expression were found in dose- and time-dependent manner in H. pylori infected AGS cells treated with rosiglitazone. CONCLUSIONS Rosiglitazone inhibited the growth of H. pylori infected AGS cells. Rosiglitazone attenuated Skp2 expression, thereby promoting p27 accumulation in H. pylori infected human gastric epithelial cells. Further studies will be needed to find the effects of accumulation on cell turnover in H. pylori infection and the role in the H. pylori-associated gastric carcinogenesis.
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Affiliation(s)
- Sung Soo Kim
- Departments of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Choi SS, Lee HK, Chae HS. In vitro photodynamic antimicrobial activity of methylene blue and endoscopic white light against Helicobacter pylori 26695. J Photochem Photobiol B 2010; 101:206-9. [PMID: 20692848 DOI: 10.1016/j.jphotobiol.2010.07.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 07/06/2010] [Accepted: 07/08/2010] [Indexed: 02/07/2023]
Abstract
Photodynamic therapy (PDT) is a method for inactivating cells (viral, bacterial and cancer cells) using photosensitizers (PS) and light of various wavelengths. Helicobacter pylori might be easily affected by light because it has few genes to repair light-induced DNA damage. In vitro PDT against H. pylori was conducted using endoscopic white light and methylene blue (MB) as the PS before application to in vivo study. The bactericidal effects were measured by counting viable cells after PDT. The degree of oxidative damage of DNA was confirmed using alkaline gel electrophoresis, real-time PCR (RT-PCR) and an assay of 8-hydroxy-2-deoxyguanosine (8-OHdG). In the control group, the number of viable cells was maintained constantly during the experiment. In the groups treated with either 0.2mg/mlMB alone or white light with 0.02mg/mlMB for 10min, bacteria decreased approximately a hundredfold. The killing effect increased proportionally to the PS concentration and the duration of irradiation. DNA damage by PDT proven by alkaline gel electrophoresis, RT-PCR and assay of 8-OHdG, was greater in PDT-treated groups than in control. PDT using MB and endoscopic white light showed effective bactericidal activity in vitro by oxidative DNA damage of H. pylori.
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Affiliation(s)
- Sung Sook Choi
- College of Pharmacy, Sahmyook University, Seoul, South Korea
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Jung ME, Cho GM, Byun SW, Do KR, Kim HK, Cho YS, Chae HS, Shin OR, Kim SS. Colitis cystica profunda presenting with a mucus pool within the stalk of a pedunculated colon polyp. Endoscopy 2010; 42 Suppl 2:E114-5. [PMID: 20306399 DOI: 10.1055/s-0029-1243981] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- M E Jung
- Department of Internal Medicine, Uijongbu St Mary Hospital, The Catholic University of Korea, Uijongbu, Korea
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Shin JY, Zhang XH, Yoon SA, Chae HS, Kang JH. Abstract 1582: Rho GDP dissociation inhibitor 2 (RhoGDI2) plays a functionally important role on EGFR signaling pathway in adenocarcinoma cells of lung cancer. Cancer Res 2010. [DOI: 10.1158/1538-7445.am10-1582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
It has been known that Rho GDP dissociation inhibitor 2 (RhoGDI2) is a regulator of Rho family GTPase. We identified a RhoGDI2 protein through the protein expression profile and then investigated its functional role on EGFR downstream signal in NSCLC (non-small cell lung cancer).
Three adenocarcinoma cell lines were selected according to the EGFR and K-RAS mutation status; PC9 (E476-A750 del in exon 19, wild type K-RAS), H1975 (T790M in exon 20 and L858R in exon 21, wild type K-RAS), A549 (wild type EGFR, K-RAS mutation in codon 12). Among 342 protein spots detected on the 2D gel, 134 spots were initially selected as differentially expressed proteins using proteome analysis. It was noteworthy that the ubiquitination-related proteins were highly expressed in EGFR TKIs-sensitive PC9 cells. On the other hand, the EGFR TKIs-resistant H1975 cells harboring both T790M and L858R mutations expressed the signal transduction-related proteins such as Zinc finger protein, G protein-coupled receptor and Ras oncogene family protein. We observed that p-EGFR (Y1047), p-AKT, and p-ERK were highly activated in PC9 cells in contrast to no or weak activation of these signaling proteins in A549 and H1975 cells.
In PC9 cell, the expression of RhoGDI2 was significantly reduced after gefitinib treatment. On the contrary, its expression was enhanced by gefitinib in H1975 cells. Accordingly, RhoGDI2 of the final six protein spots was selected for further study.
In six NSCLC cell lines, RhoGDI2 mRNA and protein expressions were evaluated using RT-PCR and Western blot analysis, respectively. The highest expression level was observed in PC-9 cells. When RhoGDI2 siRNA was transfected in PC9 cells, it was shown that RhoGDI2 protein expression was markedly reduced. Additionally, in this transfected PC-9 cells, no changes in the expression of p-ERK and truncated caspase-3 were detected, but total EGFR and p-AKT expression were increased. When gefitinib was added in the PC9 cells transfected with RhoGDI siRNA, the expression level of total EGFR was less decreased compared to that of PC-9 cells transfected with GAPDH (positive control). The RhoGDI2 siRNA transfected PC-9 cells treated with gefitinib showed more increased expression level of actin compared to that of positive control. We observed that the metastatic potential of the RhoGDI2 siRNA transfected PC-9 cells with lack of its expression was significantly increased in transwell migration assay. Taken together, it is suggested that RhoGDI2 protein is an important down-stream molecule of EGFR signaling pathway in PC9 cells harboring EGFR sensitive mutation, and plays a functional role in cell migration and metastasis.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr 1582.
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Affiliation(s)
- Jung-Young Shin
- 1The Catholic University of Korea, Seoul, Korea, Republic of
| | - Xiang-Hua Zhang
- 1The Catholic University of Korea, Seoul, Korea, Republic of
| | - Seong-Ae Yoon
- 1The Catholic University of Korea, Seoul, Korea, Republic of
| | - Hiun Suk Chae
- 2Uijungbu St. Mary’ Hospital, The Catholic University of Korea, Gyeonggi-do, Korea, Republic of
| | - Jin-Hyoung Kang
- 3Seoul St. Mary’ Hospital, The Catholic University of Korea, Seoul, Korea, Republic of
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Maeng LS, Chae HS, Lee A, Chung Y, Lee KY. Fine Needle Aspiration Biopsy of a Myxoid Leiomyosarcoma with Epithelioid Features and It Metastasized to the Abdominal Wall - A Case Report -. Korean J Pathol 2010. [DOI: 10.4132/koreanjpathol.2010.44.2.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Lee-So Maeng
- Department of Hospital Pathology, Incheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Incheon, Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Incheon, Korea
| | - Anhi Lee
- Department of Hospital Pathology, Incheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Incheon, Korea
| | - Yongan Chung
- Department of Radiology, Incheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Incheon, Korea
| | - Kyo-Young Lee
- Department of Hospital Pathology, Incheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Incheon, Korea
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Maeng LS, Chang ED, Chae HS, Kim JS, Min JY, Sohn HS, Rho SY, Kim HK, Cho YS, Choi KY, Lee HK. [Therapeutic effect of allogenic bone marrow transplantation in acute TNBS-induced colitis]. Korean J Gastroenterol 2009; 54:20-7. [PMID: 19696546 DOI: 10.4166/kjg.2009.54.1.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND/AIMS Bone marrow-derived cells (BMDC) contribute to tissue maintenance under many kinds of pathologic conditions. We carried out a study to see how BMDC play a role in the treatment of experimental murine colitis. METHODS We divided the animals into 3 groups and treated them with 50% ethanol (control group), 2,4,6-trinitrobenzene sulfinic acid colitis (TNBS group), and TNBS+bone marrow transplant (BMT group). To induce colitis, TNBS (5.0 mg/mouse) dissolved in 50% ethanol was injected into anus weekly for two weeks. Bone marrow transplantations were performed using bone marrow of male transgenic mouse (donor) with green fluorescence protein (GFP) into female wild type mouse (recipient) three weeks before TNBS instillation. All animals were sacrificed, and colons were extracted one week after the last TNBS instillation. We measured microscopic scores of mucosal injury and investigated the GFP expression for bone marrow engraftment. The immunostaining of vimentin and alpha-smooth muscle actin (alpha-SMA) for myofibroblasts was performed. RESULTS The score of mucosal injury in the TNBS group was much more severe than those in control, and reduced significantly by BMT (p<0.05). GFP-positive cells were almost deposited in pericryptal niche of BMT group but not at all in both control and TNBS group. Most of myofibroblasts stained with both vimentin and SMA also infiltrated into pericryptal niche. But, the number of myofibroblasts stained with vimentin and SMA in both control and TNBS group was smaller than that in BMT group. CONCLUSIONS BMDC deposited on pericryptal niche might have a significant role in repairing acute experimental murine colitis.
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Affiliation(s)
- Lee So Maeng
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Abstract
PURPOSE Enterobacter sakazakii (E. sakazakii) infections are an important cause of life-threatening meningitis, septicemia, and necrotizing enterocolitis in infants. Dried infant formula milk is an important vehicle for E. sakazakii infection. E. sakazakii was isolated in Korea from dried infant formula milk. Although E. sakazakii infection of infants may occur in Korea, its prevalence has not yet been documented. Therefore, we determined the prevalence of E. sakazakii and documented symptoms. MATERIALS AND METHODS Between March and October 2006, 1,146 stool samples were collected from patients at Uijeongbu St. Mary's Hospital. Each fecal swab was dissolved in 10mL of buffered peptone solution, and enriched culture was streaked onto Druggan-Forsythe-Iversen (DFI) agar. Presumptive E. sakazakii colonies that exhibited a blue-green color during culture on DFI medium were selected. The identity of colonies that developed yellow pigment during culture on TSA was determined using the Vitek system and PCR. RESULTS We isolated 4 E. sakazakii strains whose 16S rRNA sequence alignments had a similarity of 99% with those of 3 E. sakazakii ATCC strains. CONCLUSION This is the first report on isolation of E. sakazakii from stool samples and to document the symptoms of Korean patients.
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Affiliation(s)
- Jung Beom Kim
- Division of Health Research and Planning, Gyeonggi-do Research Institute of Health and Environment, Suwon, Korea
| | - Seung-Hak Cho
- Division of Enteric Bacterial Infections, Center for Infectious Diseases, National Institute of Health, Seoul, Korea
| | - Yong Bae Park
- Division of Health Research and Planning, Gyeonggi-do Research Institute of Health and Environment, Suwon, Korea
| | - Jung Bok Lee
- Division of Health Research and Planning, Gyeonggi-do Research Institute of Health and Environment, Suwon, Korea
| | - Jong Chan Kim
- Division of Health Research and Planning, Gyeonggi-do Research Institute of Health and Environment, Suwon, Korea
| | - Bok Kwon Lee
- Division of Enteric Bacterial Infections, Center for Infectious Diseases, National Institute of Health, Seoul, Korea
| | - Hae Kyung Lee
- Department of Laboratory Medicine, The Catholic University College of Medicine, Uijeong-bu, Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, The Catholic University College of Medicine, Uijeong-bu, Korea
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Kim N, Park SH, Seo GS, Lee SW, Kim JW, Lee KJ, Shin WC, Kim TN, Park MI, Park JJ, Hong SJ, Shim KN, Kim SW, Shin YW, Chang YW, Chun HJ, Lee OJ, Jeon WJ, Park CG, Cho CM, Park CH, Won SY, Lee GH, Park KS, Shin JE, Kim HU, Park JY, Chae HS, Song GA, Kim JG, Yoon BC, Seol S, Jung HC, Chung IS. Lafutidine versus lansoprazole in combination with clarithromycin and amoxicillin for one versus two weeks for Helicobacter pylori eradication in Korea. Helicobacter 2008; 13:542-9. [PMID: 19166420 DOI: 10.1111/j.1523-5378.2008.00648.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIMS Lafutidine is a novel H(2)-receptor antagonist with gastroprotective activity that includes enhancement of gastric mucosal blood flow. The aim of the present study was to test the efficacy of 7- or 14-day lafutidine-clarithromycin-amoxicillin therapy versus a lansoprazole-based regimen for Helicobacter pylori eradication. METHODS Four hundred and sixty-three patients with H. pylori-infected peptic ulcer disease were randomized to one of four regimens: (1) lafutidine (20 mg b.i.d.), clarithromycin (500 mg b.i.d.) and amoxicillin (1000 mg b.i.d.) for 7 days (the 7LFT group) or (2) for 14 days (the 14LFT group); (3) lansoprazole (30 mg b.i.d.), clarithromycin (500 mg b.i.d.), and amoxicillin (1000 mg b.i.d.) for 7 days (the 7LPZ group); or (4) for 14 days (the 14LPZ group). The eradication rates, drug compliance, and adverse effects among the four regimens were compared. RESULTS The eradication rates by the intention-to-treat and per-protocol analyses in the 7LFT and 7LPZ groups were 76.5% and 81.6%, and 76.9% and 82.0% (p = .94 and .95), respectively. The eradication rates by intention-to-treat and per-protocol analyses in the 14LFT and 14LPZ groups were 78.2% and 82.2%, and 80.4% and 85.9% (p = .70 and .49), respectively. The treatment duration for 7 days or 14 days did not affect the eradication rates. In addition, the adverse effect rates and discontinuation rates were similar among the four groups. Furthermore, the ulcer cure rate and symptom response rate were similar in the lafutidine and lansoprazole groups. CONCLUSION The results of this study showed that lafutidine-clarithromycin-amoxicillin therapy was a safe and effective as lansoprazole-based triple therapy for the eradication rate of H. pylori, and could be considered as an additional treatment option.
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Affiliation(s)
- Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
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Abstract
Blue rubber bleb nevus syndrome is a rare disorder that is characterized by multiple recurrent vascular malformations, such as hemangioma, and these primarily involve the skin and the gastrointestinal tract. It may also involve the brain, liver, lungs, and skeletal muscles. A 14-year-old female visited our hospital with a chief complaint of dizziness; upon examination, we found multiple recurrent hemangiomas on the skin and gastrointestinal tract. We were able to diagnose her as suffering from blue rubber bleb nevus syndrome and we treated her with methylprednisolone (2 mg/kg/day for 1 month and 1 mg/kg/day for additional 3 months). We report on this case along with a review of the literature.
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Affiliation(s)
- Seung Hwan Shin
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Lee HK, Chae HS, Kim JS, Kim HK, Cho YS, Rho SY, Kang JH, Cho SG, Jang HS, Han K. Vascular endothelial growth factor levels in ascites between chemonaive and chemotreated patients. Yonsei Med J 2008; 49:429-35. [PMID: 18581593 PMCID: PMC2615342 DOI: 10.3349/ymj.2008.49.3.429] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
PURPOSE Vascular endothelial growth factor (VEGF) levels in malignant ascites have high diagnostic value for their discrimination from ascites of non-malignant origin. However, there have been no reports on the comparison of VEGF levels between malignant ascites of chemonaive and chemotreated patients. MATERIALS AND METHODS VEGF levels were measured in 44 ascites patients (cirrhosis ascites, 10; chemonaive patients, 21; chemotreated patients, 13) and compared to the level of carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA 19-9). The diagnostic parameters of sensitivity, specificity, and correlation among 3 markers were evaluated. RESULTS VEGF levels in malignant ascites of chemonaive and chemotreated patients were significantly higher than those in cirrhotic ascites (p<0.05). VEGF levels in ascites of chemonaive patients were significantly higher than those in chemotreated patients (p<0.05). A cutoff value of 10.4 pg/mL was calculated using receiver operating characteristic curves (ROCs) for VEGF in chemotreated and chemonaive patients, which gave sensitivities of 75.0% and 53.8% and specificities of 69.6% and 47.1%, respectively. Positive correlations were observed between VEGF and CEA (r=0.353, p<0.05) as well as between VEGF and CA19-9 (r=0.367, p<0.05) in ascites. CONCLUSION VEGF levels could be a useful tumor marker for malignant ascites, but its value should carefully be interpreted because of lesser reliability in chemotreated ones.
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Affiliation(s)
- Hae Kyung Lee
- Department of Laboratory Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Jin Soo Kim
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Hyung Keun Kim
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Young Seok Cho
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Sang Young Rho
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Jin-Hyoung Kang
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Seok Goo Cho
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Hong Seok Jang
- Department of Radiation Oncology, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Kyungja Han
- Department of Laboratory Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
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Kim JS, Chae HS, Kim HK, Cho YS, Park YW, Son HS, Han SW, Choi KY. [Spontaneous resolution of multiple fundic gland polyps after cessation of treatment with omeprazole]. Korean J Gastroenterol 2008; 51:305-308. [PMID: 18516015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Fundic gland polyps (FGPs) are the most common type of gastric polyps, found primarily in the fundus and body of stomach. Long term use of proton pump inhibitor (PPI) is known to be associated with certain histological changes of the normal gastric mucosa including parietal cell hyperplasia and fundic gland cysts. We experienced a patient who showed spontaneous resolution of multiple FGPs after the cessation of omeprazole. Two years ago, the patient showed only endoscopically confirmed erosive esophagitis without FGPs. Multiple FGPs developed one year after the use of omeprazole and spontaneously disappeared with the cessation of omeprazole.
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Affiliation(s)
- Jin-Soo Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Lee HK, Chae HS, Kang JO, Lee MK, Sung H, Kim MN, Lee J, Lee M, Shim KN. Multicenter Study for the Frequency of 23S rRNA Point Mutations Associated with Clarithromycin Resistance inHelicobacter pyloriin Korea. ACTA ACUST UNITED AC 2008. [DOI: 10.5145/kjcm.2008.11.2.84] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hae Kyung Lee
- Department of Laboratory Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jung Oak Kang
- Department of Laboratory Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Mi-Kyung Lee
- Department of Laboratory Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Heungsup Sung
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Mi-Na Kim
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | | | - Miae Lee
- Department of Laboratory Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Ki-Nam Shim
- Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
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Kim JS, Yoon TJ, Kim HK, Kim SS, Chae HS, Choi MG, Kim YJ, Yi GC, Cho YS. [Sentinel lymph node mapping of the stomach using fluorescent magnetic nanoparticles in rabbits]. Korean J Gastroenterol 2008; 51:19-24. [PMID: 18349558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND/AIMS Sentinel lymph node (SLN) mapping of the stomach cancer using available techniques is limited by unpredictable lymphatic drainage patterns and skip metastasis. The aim of this study was to test the feasibility of gastric SLN mapping using fluorescent magnetic nanoparticles (FMNP) of uniform nano-size. METHODS Biocompatible silica-overcoated magnetic nanoparticles containing rhodamine B isothiocyanate (RITC) within a silica shell of controllable thickness with 60 nm thickness were used as model nanomaterials. Gastric lymphatic mapping was performed by injecting 100 microL of either FMNP or isosulafan blue subserosally. Gastric injections (n=7) were made into the body, approximately 5 cm from the lesser curvature of rabbits. Sentinel lymph nodes were visualized using fluorescent nanoparticle detection system. RESULTS In 7 rabbits, it was demonstrated that FMNP quickly and accurately detected sentinel lymph nodes. Injection into the stomach resulted in identification of a retrogastric lymph node. Histological analysis in all cases confirmed the presence of nodal tissue. CONCLUSIONS FMNP can be a potential alternative to existing tracers in the detection of SLN in this animal experiment.
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Affiliation(s)
- Jin Soo Kim
- Department of Internal Medicine, The Catholic University of Korea, Seoul, Korea
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Kim SS, Lee YM, Kim HK, Kim JI, Chae HS, Chung IS, Park DH. [The role of gastric acid in the H. pylori-induced gastritis in mouse]. Korean J Gastroenterol 2007; 50:363-369. [PMID: 18159173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
BACKGROUND/AIMS This study was designed to investigate the role of gastric acid in the extent of H. pylori-induced gastritis. METHODS Twenty eight mice were inoculated with live H. pylori. They were allocated into four groups. Mice in group I received no treatment, group II mice were treated with sham injection, group III received 125 microg/kg body weight of pentagastrin, while group IV received 250 microg/kg body weight of pentagastrin subcutaneously three times a week. After 7 months, the mucosal pH, H. pylori density, neutrophils and monocytes infiltration, and the degree of atrophy were assessed in the stomach. RESULTS In the gastric body, the densities of H. pylori were not different among groups. The degree of neutrophil infiltration was significantly lower in group IV compared to other groups (p<0.05). The degree of monocyte infiltration was also significantly lower in group IV than group III (p<0.05). In the gastric antrum, there was no significant difference of the H. pylori density, neutrophil and monocyte infiltration, and degree of atrophy among the groups. The mice with the gastric mucosal pH lower than mean of 3.2 had significant lower level of H. pylori density (1.4 vs. 2.4, p=0.04), and infiltration of neutrophils (0.9 vs. 2.3, p=0.018), and monocytes (1.2 vs. 1.8; p=0.011) than the those with mucosal pH above 3.2 in the body of stomach. CONCLUSIONS Gastric acid plays a role in suppressing the proximal propagation of H. pylori-induced gastritis to the body of stomach.
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Affiliation(s)
- Sung Soo Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea.
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Singh NK, Singh GR, Kinjavdekar P, Sharma AK, Mohanty TR, Kumar S, Chae HS, Yoo YM, Ahn CN. Articular Cartilage Repair with Autografting Under the Influence of Insulin-Like Growth Factor-1 in Rabbits. ACTA ACUST UNITED AC 2007; 54:210-8. [PMID: 17493168 DOI: 10.1111/j.1439-0442.2007.00941.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Insulin-like growth factor (IGF)-1 has been successfully demonstrated to stimulate proteoglycan synthesis, slow down its catabolism and promote cartilage formation through well defined in vitro studies. It was therefore, assumed that IGF-1 would eventually serve to augment current cartilage repair techniques in vivo. Study was therefore, designed to determine the influence of IGF-1 in cartilage repair with or without autografting. For this purpose articular cartilage repair model was created in the left knee of 48 New Zealand white rabbits of either sex, 6-7 months old, weighing 1-2 kg. The articular cartilage defect was created in the femoral groove of femoro-patellar joint using hand held trephine under xylazine and ketamine anaesthesia in all the animals. The defect created was 3 mm in diameter and 2 mm in depth. For autografting, osteochondral tissues harvested from the proximal patellar groove of the femur were placed in the distal defect and vice versa. The experimental animals were divided mainly into four groups, i.e. Group A (control), Group B (autografting), Group C (control + IGF-1) and Group D (autografting + IGF-1). Animals of group A and B were provided only with collagen scaffolds at 10 mug/cm(2) whereas animals of treatment group C and D were provided with collagen scaffolds holding 30 ng/30 mul of IGF-1 into the defect. Evaluation of cartilage repair was done on days 15, 30 and 45 after ethically killing the animals. Initially IGF-1 had shown the tendency for either in the maintenance of autografted cartilage or helped in proliferation of chondroblast for the repair process. However, later in the process, cartilage formation apparently declined and appeared to converge to osseous tissue. Collectively, non-responsiveness of osteoarthritic chondrocytes to IGF-1 could be partially attributed to either increased IGF-binding proteins in the joint space, micromovement of the graft, lack of nutrition, dose of IGF-1 or its half life in the current study.
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Affiliation(s)
- N K Singh
- Division of Surgery, Indian Veterinary Research Institute, Izatnagar, Bareilly, India
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