101
|
Shim YK, Kim N, Park YH, Lee JC, Sung J, Choi YJ, Yoon H, Shin CM, Park YS, Lee DH. Effects of Age on Esophageal Motility: Use of High-resolution Esophageal Impedance Manometry. J Neurogastroenterol Motil 2017; 23:481. [PMID: 28672434 PMCID: PMC5503300 DOI: 10.5056/jnm23031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The data "268" in the Abstract should have been written as "279" and the data "277" in the Materials and Methods should have been written as "279."
Collapse
|
102
|
Choi YJ, Kim N, Lee JY, Nam RH, Suh JH, Lee SM, Ham MH, Jo HJ, Shim YK, Park YH, Lee JC, Choi YJ, Lee HS, Lee DH. PMK-S005 Alleviates Age-Related Gastric Acid Secretion, Inflammation, and Oxidative Status in the Rat Stomach. Gut Liver 2017; 10:749-56. [PMID: 27172930 PMCID: PMC5003198 DOI: 10.5009/gnl15584] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 11/13/2015] [Accepted: 12/05/2015] [Indexed: 12/12/2022] Open
Abstract
Background/Aims The aim of this study was to evaluate the effect of the synthetic S-allyl-l-cysteine (SAC) PMK-S005 on gastric acid secretion, inflammation, and antioxidant enzymes in aging rats. Methods The rats were divided into four groups at 31 weeks of age and were continuously fed a diet containing a vehicle control, PMK-S005 (5 or 10 mg/kg), or lansoprazole (5 mg/kg). Gastric acid secretion and connective tissue thickness of the lamina propria were evaluated at 74 weeks and 2 years of age. Tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and COX-2 levels were measured by using enzyme-linked immunosorbent assays (ELISAs) or Western blot assays. Levels of antioxidant enzymes, including heme oxyganase 1 (HO-1) and NAD(P)H:quinone oxidoreductase 1 (NQO-1), were also measured. Results As the rats aged, gastric acid secretion significantly decreased, and the connective tissue of the lamina propria increased. However, 74-week-old rats in the PMK-S005 group exhibited greater levels of gastric acid secretion than those of the control and lansoprazole groups. The increase of TNF-α, IL-1β, and COX-2 expression in 74-week and 2-year-old control rats were inhibited by PMK-S005. In addition, the decrease in HO-1 and NQO-1 protein expression that occurred with aging was inhibited by PMK-S005 in the 74-week-old rats. Conclusions These results suggest that PMK-S005 has therapeutic potential as an antiaging agent to ameliorate age-related gastric acid secretion, inflammation, and oxidative stress in the stomach.
Collapse
Affiliation(s)
- Yoon Jeong Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Ju Yup Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ryoung Hee Nam
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ji Hyung Suh
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sun Min Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Min Hee Ham
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hyun Jin Jo
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Young Kwang Shim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yo Han Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jong-Chan Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| |
Collapse
|
103
|
Choi YJ, Lee DH, Han KD, Yoon H, Shin CM, Park YS, Kim N. Joint Effects of Low Body Mass Index and Alcohol Consumption on Developing Esophageal Squamous Cell Cancer: a Korean Nationwide Population-Based Cohort Study. Asian Pac J Cancer Prev 2017; 18:1881-1887. [PMID: 28749616 PMCID: PMC5648394 DOI: 10.22034/apjcp.2017.18.7.1881] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Objective: In Korea, 95% of esophageal cancer (EC) was the squamous cell-type. We sought to determine the combined risk of alcohol consumption on developing esophageal squamous cell carcinoma (ESCC) in pre-diagnostic underweight subjects using Korean national data. Methods: We analyzed the clinical data from a total of 264,084 individuals aged 40 years or older, who received healthcare checkups arranged by the national insurance program, between 2003 and 2008 in Korea. Cox proportional hazards regression was used after adjusting confounding factors. Result: Newly diagnosed 278 EC was identified using the claims data during a median follow-up duration of 7.9 years. It was determined that underweight and obesity-compared with normal weight-were significantly associated with 73% increased risk and 30% decreased risk of EC, respectively. Weight gain reduced the risk of EC. Alcohol consumption increased risk for EC in a dose-dependent manner. Heavy alcohol consumption in individuals with underweight increased the risk of developing EC dramatically. Conclusion: Underweight was a risk factor for ESCC and alcohol consumption raised the risk synergistically with low BMI. Achieving normal range of BMI could reduce the risk of ESCC.
Collapse
Affiliation(s)
- Yoon Jin Choi
- Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea.
| | | | | | | | | | | | | |
Collapse
|
104
|
Choi JY, Yoon H, Na G, Choi YJ, Shin CM, Park YS, Kim N, Lee DH. Evaluation of the Expression of the Inhibitor of Apoptosis Protein Family and Human Telomerase Reverse Transcriptase in Patients With Advanced Colorectal Adenoma. J Cancer Prev 2017; 22:98-102. [PMID: 28698863 PMCID: PMC5503221 DOI: 10.15430/jcp.2017.22.2.98] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/24/2017] [Accepted: 05/25/2017] [Indexed: 11/09/2022] Open
Abstract
Background It has been reported that the expression of the inhibitor of apoptosis protein (IAP) family increases in patients with colon cancer. We evaluated the expression of the IAP family and human telomerase reverse transcriptase (hTERT) in normal colon mucosa from patients with advanced colorectal adenoma and investigated their features according to characteristics of advanced colorectal adenoma. Methods While resections of polyps were performed in patients (n = 80) diagnosed with advanced colorectal adenoma or carcinoma in situ, additional normal tissues were obtained from the sigmoid colon. In healthy patients (n = 16), blind biopsies were performed on the sigmoid colon. The expression of the IAP family, including survivin, XIAP, cIAP1, and cIAP2, and hTERT, were analyzed by real-time PCR in both groups. Results A total of 80 advanced colorectal adenoma patients (71.3% male, mean age of 60.4 years) and 16 control patients were enrolled in this study. The mean ranking of cIAP2 was higher in the control group (68.88 vs. 44.43, P = 0.001). The expression levels of hTERT, survivin, XIAP, and cIAP from both groups showed no differences. The expression of survivin, XIAP, cIAP1, cIAP2, and hTERT depending on certain factors of advanced adenoma, including the number (two or fewer vs. three or more), size (smaller than 1 cm vs. larger than 1 cm), grade of dysplasia (low grade adenoma vs. high grade adenoma), pathology (tubular adenoma vs. villous adenoma), and presence of endometrial intraepithelial neoplasms, showed no significant correlations in the Mann-Whitney U-test. Conclusions The expression of the IAP family and hTERT, except cIAP2, in the normal mucosa of patients with advanced colorectal adenoma were not different from those of the control group. There were no differences in the IAP family and hTERT according to the characteristics of advanced adenoma.
Collapse
Affiliation(s)
- Joon Young Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Gyeongjae Na
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Young Soo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| |
Collapse
|
105
|
Suh CH, Baek JH, Park C, Choi YJ, Lee JH. The Role of Core Needle Biopsy for Thyroid Nodules with Initially Indeterminate Results on Previous Fine-Needle Aspiration: A Systematic Review and Meta-Analysis. AJNR Am J Neuroradiol 2017; 38:1421-1426. [PMID: 28473343 PMCID: PMC7959904 DOI: 10.3174/ajnr.a5182] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 02/13/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND Sonography-guided fine-needle aspiration leads to relatively frequent cases of indeterminate cytology for the diagnosis of thyroid nodules. PURPOSE Our aim was to evaluate the efficacy and safety of core needle biopsy for the examination of thyroid nodules with initially indeterminate results on fine-needle aspiration. DATA SOURCES A computerized search of the MEDLINE and Embase databases was performed to identify relevant original articles. STUDY SELECTION Studies investigating the use of core needle biopsy for thyroid nodules with initially indeterminate results on previous fine-needle aspiration were eligible for inclusion. DATA ANALYSIS The pooled proportions for nondiagnostic results, inconclusive results, malignancy on core needle biopsy, the ability of core needle biopsy to diagnose malignancy, and the related complications of the procedure were analyzed. DATA SYNTHESIS The meta-analytic pooling was based on a random-effects model. Nine eligible studies, involving 2240 patients with 2245 thyroid nodules, were included. The pooled proportion for nondiagnostic results was 1.8% (95% CI, 0.4%-3.2%), and the pooled proportion for inconclusive results was 25.1% (95% CI, 15.4%-34.9%). The pooled proportion for malignancy was 18.9% (95% CI, 8.4%-29.5%). With regard to the diagnostic performance for malignancy, the sensitivity of core needle biopsy varied, ranging from 44.7% to 85.0%, but the specificity was 100% in all cases. No major complications of core needle biopsy were observed. LIMITATIONS The relatively small number of included studies and retrospective nature were limitations. CONCLUSIONS Core needle biopsy has low nondiagnostic result rates and high specificity for the diagnosis of malignancy. It is a safe diagnostic technique with a higher diagnostic yield, especially when molecular testing is not available or fine-needle aspiration did not yield enough cells for molecular testing.
Collapse
Affiliation(s)
- C H Suh
- From the Department of Radiology and Research Institute of Radiology (C.H.S., J.H.B.,Y.J.C., J.H.L.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
- Department of Radiology (C.H.S., C.P.), Namwon Medical Center, Jeollabuk-Do, Republic of Korea
| | - J H Baek
- From the Department of Radiology and Research Institute of Radiology (C.H.S., J.H.B.,Y.J.C., J.H.L.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - C Park
- Department of Radiology (C.H.S., C.P.), Namwon Medical Center, Jeollabuk-Do, Republic of Korea
- Department of Radiology (C.P.), Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Y J Choi
- From the Department of Radiology and Research Institute of Radiology (C.H.S., J.H.B.,Y.J.C., J.H.L.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - J H Lee
- From the Department of Radiology and Research Institute of Radiology (C.H.S., J.H.B.,Y.J.C., J.H.L.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| |
Collapse
|
106
|
Yoon H, Kim N, Park JH, Kim YS, Lee J, Kim HW, Choi YJ, Shin CM, Park YS, Lee DH, Jung HC. Comparisons of Gut Microbiota Among Healthy Control, Patients With Conventional Adenoma, Sessile Serrated Adenoma, and Colorectal Cancer. J Cancer Prev 2017; 22:108-114. [PMID: 28698865 PMCID: PMC5503223 DOI: 10.15430/jcp.2017.22.2.108] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [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: 06/02/2017] [Accepted: 06/07/2017] [Indexed: 12/14/2022] Open
Abstract
Background Studies on gut microbiota regarding colorectal carcinogenesis, including sessile serrated adenoma (SSA), have been scarce. The aim of this study is to investigate the role of mucosa-associated gut microbiota in the colorectal carcinogenesis. Methods We collected biopsy samples of normal rectal mucosa during colonoscopy from healthy control and patients with conventional adenoma, SSA, and colorectal cancer (CRC), respectively (n = 6). Pyrosequencing for 16S rRNA gene of bacteria was performed to compare gut microbiota. Results The most abundant phylum in total samples was Proteobacteria (55.6%), followed by Firmicutes (27.4%) and Bacteroidetes (11.6%). There was no significant difference in relative abundance of the phylum level among the four groups. Fusobacterium nucleatum, known to be frequently detected during colorectal carcinogenesis, was found in only one sample of patient with SSA. The rarefaction curves showed that the diversity of mucosal communities of patients with CRC is the lowest among the four groups and the diversity of mucosal communities of patients with SSA is higher than that of healthy control. Among the four groups, Shannon’s and Simpson’s index for diversity was the lowest and the highest in the patients with CRC, respectively; it did not reach statistical significance. The proportion of genus Pseudomonas was very high in the samples of patients with stage II–IV CRC compared with those with stage I CRC (59.3% vs. 0.3%, P = 0.064). Conclusions Our study suggests no significant role of mucosa-associated gut microbiota in the colorectal carcinogenesis. Further study for many samples or using fecal material could be helpful.
Collapse
Affiliation(s)
- Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Hyun Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Sung Kim
- Gastroenterology and Digestive Disease Research Institute, Wonkwang University Sanbon Hospital, Gunpo, Korea
| | - Jongchan Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hyoung Woo Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Young Soo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun Chae Jung
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| |
Collapse
|
107
|
Ryu KH, Lee JH, Lee JY, Chung SR, Chung MS, Kim HW, Choi YJ, Baek JH. Ethanol Ablation of Ranulas: Short-Term Follow-Up Results and Clinicoradiologic Factors for Successful Outcome. AJNR Am J Neuroradiol 2017; 38:1794-1798. [PMID: 28663262 DOI: 10.3174/ajnr.a5292] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 05/09/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Surgical excision of an affected sublingual gland for treatment of a ranula can carry a potential of a nerve damage or postoperative complications. However, there have been little studies about effective minimally invasive therapeutic method, yet. Our aim was to evaluate the efficacy and safety of ethanol ablation of ranulas and the clinicoradiologic factors that can predict outcome. MATERIALS AND METHODS This retrospective study evaluated 23 patients with ranulas treated by percutaneous ethanol ablation. Treatment outcome was assessed in 20 patients followed for at least 6 months. The duration of symptoms before ethanol ablation, pretreatment volume, and parapharyngeal extension on sonography and/or CT were correlated with the outcome. The Mann-Whitney U test and Fisher exact test were used for comparison of the factors according to the outcome. RESULTS The study evaluated 14 males and 9 females with a median age of 26 years (range, 3-41 years). Among 20 patients who were followed for at least 6 months (median, 20 months; range, 6-73 months), 9 patients (45%) demonstrated complete disappearance of the ranulas and 11 (55%) showed an incomplete response. When the patients were divided according to the duration of symptoms before ethanol ablation, the complete response rate was significantly higher in patients with ≤12 months of symptoms (73%, 8/11) than that in others (11%, 1/9) (P = .010). Pretreatment volume and parapharyngeal extension were not significantly different between the 2 groups. CONCLUSIONS Ethanol ablation is a safe and noninvasive treatment technique for ranulas with a significantly better outcome in patients with ≤12 months of symptoms. Therefore, it could be considered an alternative nonsurgical approach for ranulas with recent onset of symptoms.
Collapse
Affiliation(s)
- K H Ryu
- From the Department of Radiology and Research Institute of Radiology (K.H.R., J.H.L., J.Y.L., S.R.C., M.S.C., H.W.K., Y.J.C., J.H.B.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.,Department of Radiology (K.H.R.), Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - J H Lee
- From the Department of Radiology and Research Institute of Radiology (K.H.R., J.H.L., J.Y.L., S.R.C., M.S.C., H.W.K., Y.J.C., J.H.B.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - J Y Lee
- From the Department of Radiology and Research Institute of Radiology (K.H.R., J.H.L., J.Y.L., S.R.C., M.S.C., H.W.K., Y.J.C., J.H.B.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.,Department of Radiology (J.Y.L.), Soonchunhyang University College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - S R Chung
- From the Department of Radiology and Research Institute of Radiology (K.H.R., J.H.L., J.Y.L., S.R.C., M.S.C., H.W.K., Y.J.C., J.H.B.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - M S Chung
- From the Department of Radiology and Research Institute of Radiology (K.H.R., J.H.L., J.Y.L., S.R.C., M.S.C., H.W.K., Y.J.C., J.H.B.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.,Department of Radiology (M.S.C.), Chung-Ang University College of Medicine, Chung-Ang University Medical Center, Seoul, Republic of Korea
| | - H W Kim
- From the Department of Radiology and Research Institute of Radiology (K.H.R., J.H.L., J.Y.L., S.R.C., M.S.C., H.W.K., Y.J.C., J.H.B.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Y J Choi
- From the Department of Radiology and Research Institute of Radiology (K.H.R., J.H.L., J.Y.L., S.R.C., M.S.C., H.W.K., Y.J.C., J.H.B.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - J H Baek
- From the Department of Radiology and Research Institute of Radiology (K.H.R., J.H.L., J.Y.L., S.R.C., M.S.C., H.W.K., Y.J.C., J.H.B.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| |
Collapse
|
108
|
Choi YJ, Kim N, Lee JY, Nam RH, Seo JH, Lee S, Kim HJ, Choi YJ, Lee HS, Lee DH. Gastroprotective Effects of PMK-S005 against Ethanol-Induced Acute Gastric Damage in Rats. Gut Liver 2017; 10:348-55. [PMID: 26347516 PMCID: PMC4849686 DOI: 10.5009/gnl14509] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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] [Indexed: 12/17/2022] Open
Abstract
Background/Aims This study aimed to examine the gastroprotective effects of PMK-S005, which is a synthetic S-allyl-l-cysteine (SAC; a sulfur-containing amino acid), against acute ethanol-induced gastric damage in rats. Methods Sprague-Dawley rats were divided into six groups, including a nonethanol group, groups treated with absolute ethanol 1 hour after pretreatment with various doses of PMK-S005 (1, 5, and 10 mg/kg) or rebamipide (50 mg/kg), and an absolute ethanol-only group. Ethanol-induced gross ulcer and mucus levels were measured. Myeloperoxidase, tumor necrosis factor α, interleukin 1β, PGE2, LTB4, cPLA2, COX-1, and COX-2 levels were estimated by enzyme-linked immunosorbent assay or Western blot analysis. Furthermore, the protein expression levels of antioxidant enzymes, including heme oxygenase-1 (HO-1), NAD(P)H:quinine oxidoreductase 1 (NQO-1), GCLC, and GCLM, were assessed. Results PMK-S005 significantly attenuated the ethanol-induced gastric damage; it reduced mucosal inflammatory cytokine production and increased mucus levels. The expression levels of cPLA2, COX-1, and COX-2 were decreased by PMK-S005. PMK-S005 did not affect PGE2 synthesis, but LTB4 production was significantly suppressed. In addition, long-term administration of PMK-S005 significantly increased the expression of HO-1, NQO-1, GCLC, and GCLM. Conclusions These results strongly suggest that PMK-S005 prevents gastric mucosal damage and that these gastroprotective activities are due to anti-inflammatory effects and enhancement of the gastric defense system, including antioxidant enzymes.
Collapse
Affiliation(s)
- Yoon Jeong Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Ju Yup Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ryoung Hee Nam
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ji Hyung Seo
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seonmin Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hee Jin Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| |
Collapse
|
109
|
Mamuad LL, Kim SH, Choi YJ, Soriano AP, Cho KK, Lee K, Bae GS, Lee SS. Increased propionate concentration in Lactobacillus mucosae-fermented wet brewers grains and during in vitro rumen fermentation. J Appl Microbiol 2017; 123:29-40. [PMID: 28425572 DOI: 10.1111/jam.13475] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 06/22/2016] [Revised: 04/03/2017] [Accepted: 04/07/2017] [Indexed: 01/15/2023]
Abstract
AIMS This study was conducted to isolate and identify propionate-producing bacteria that can be used as an inoculum in improving wet brewers grains and rumen fermentation via increasing propionate concentration. METHODS AND RESULTS A strain of Lactobacillus that exhibits high levels of propionate production was identified and characterized as Lactobacillus mucosae 521129 by 16S rRNA gene sequencing and phylogenetic analyses. Wet brewers grains were fermented through L. mucosae inoculation and resulted in an increase in propionate concentration. Fermented wet brewers grains were used in in vitro rumen fermentation and revealed that L. mucosae-fermented wet brewers grains produced more gas and had higher accumulations propionate and total volatile fatty acid (VFA) than the control. The fewest methanogen DNA copies were detected in L. mucosae-fermented wet brewers grains. CONCLUSION Identified L. mucosae improved the fermentation of wet brewers grains and the in vitro rumen fermentation via increasing propionate and total VFA concentrations. SIGNIFICANCE AND IMPACT OF THE STUDY The presented research provided the identification of L. mucosae 521129 as a propionate producer and was metabolically profiled. Furthermore, data present the putative application of this organism in improving the fermentation of wet brewers grains and in vitro rumen fermentation.
Collapse
Affiliation(s)
- L L Mamuad
- Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, College of Bio-industry Science, Sunchon National University, Suncheon, Jeonnam, Korea
| | - S H Kim
- Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, College of Bio-industry Science, Sunchon National University, Suncheon, Jeonnam, Korea
| | - Y J Choi
- Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, College of Bio-industry Science, Sunchon National University, Suncheon, Jeonnam, Korea
| | - A P Soriano
- Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, College of Bio-industry Science, Sunchon National University, Suncheon, Jeonnam, Korea.,Small Ruminant Center, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines
| | - K K Cho
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju, Gyeongsang, Korea
| | - K Lee
- Department of Animal Sciences, Ohio State University, Columbus, OH, USA
| | - G S Bae
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Korea
| | - S S Lee
- Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, College of Bio-industry Science, Sunchon National University, Suncheon, Jeonnam, Korea
| |
Collapse
|
110
|
Choi YJ, Lee DH, Han KD, Yoon H, Shin CM, Park YS, Kim N. Elevated serum gamma-glutamyltransferase is associated with an increased risk of oesophageal carcinoma in a cohort of 8,388,256 Korean subjects. PLoS One 2017; 12:e0177053. [PMID: 28475598 PMCID: PMC5419599 DOI: 10.1371/journal.pone.0177053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/21/2017] [Indexed: 12/18/2022] Open
Abstract
Gamma-glutamyltransferase (GGT) is a marker for hepatic injury and alcohol consumption. However, the association of GGT with the risk of oesophageal carcinoma (OC) has not been fully recognized to date. Therefore, this study aimed to determine the association between elevated GGT and OC, by also considering the body mass index (BMI) of the subjects. Clinical data from 8,388,256 Korean individuals, who were aged 40 years and over and who received healthcare check-ups arranged by the national insurance program in 2007 and 2008, were analysed. Newly diagnosed OC was identified using claims data during a median follow-up duration of 8.72 years. During the study period, 6,863 individuals (0.08%) developed OC. We found that there was an increased risk of OC in subjects with serum GGT values >18 IU/L. Furthermore, a BMI <18.5 kg/m2 (underweight) was associated with increased OC risk, while a BMI ≥23.0 kg/m2 was associated with a reduced OC risk. Individuals who were both underweight and in the highest GGT quartile (≥40 IU/L) had a far greater risk of OC compared to other individuals (hazard ratio: 3.65, 95% confidence interval: 3.10–4.30). In conclusion, increased serum GGT was associated with an increased risk of developing OC in the general Korean population, regardless of age, sex, smoker status, or alcohol consumption.
Collapse
Affiliation(s)
- Yoon Jin Choi
- Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Dong Ho Lee
- Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
- * E-mail:
| | - Kyung-Do Han
- Department of Biostatistics, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hyuk Yoon
- Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Cheol Min Shin
- Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Young Soo Park
- Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Nayoung Kim
- Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| |
Collapse
|
111
|
Shim YK, Kim N, Park YH, Lee JC, Sung J, Choi YJ, Yoon H, Shin CM, Park YS, Lee DH. Effects of Age on Esophageal Motility: Use of High-resolution Esophageal Impedance Manometry. J Neurogastroenterol Motil 2017; 23:229-236. [PMID: 28163259 PMCID: PMC5383117 DOI: 10.5056/jnm16104] [Citation(s) in RCA: 17] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 12/19/2016] [Accepted: 01/15/2017] [Indexed: 01/10/2023] Open
Abstract
Background/Aims Disturbances of esophageal motility have been reported to be more frequent the aged population. However, the physiology of disturbances in esophageal motility during aging is unclear. The aim of this study was to evaluate the effects of age on esophageal motility using high-resolution esophageal impedance manometry (HRIM). Methods Esophageal motor function of 268 subjects were measured using HRIM in 3 age groups, < 40 years (Group A, n = 32), 40–65 years (Group B, n = 185), and > 65 years (Group C, n = 62). Lower esophageal sphincter (LES) and upper esophageal sphincter (UES) pressures, integrated relaxation pressure, distal contractile integral, contractile front velocity, distal latency, and pressures and duration of contraction on 4 positions along the esophagus, and complete bolus transit were measured. Results Basal UES pressure was lower in Group C (P < 0.001) but there was no significant difference in the LES pressure among groups. Contractile duration on position 3 (10 cm from proximal LES high pressure zone) was longer in Group C (P = 0.001), and the contractile amplitude on position 4 (5 cm from proximal LES high pressure zone) was lower in Group C (P = 0.005). Distal contractile integral was lower in Group C (P = 0.037). Contractile front velocity (P = 0.015) and the onset velocity (P = 0.040) was lower in Group C. There was no significant difference in impedance values. Conclusions The decrease of UES pressure, distal esophageal motility, and peristaltic velocity might be related with esophageal symptoms in the aged population.
Collapse
Affiliation(s)
- Young Kwang Shim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine and Liver Research Institute, Seoul, Korea
| | - Yo Han Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Jong-Chan Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Jihee Sung
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Young Soo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine and Liver Research Institute, Seoul, Korea
| |
Collapse
|
112
|
Abstract
Objectives Eukaryotic translation initiation factor 3 (eIF3) is a multi-subunit complex that plays a critical role in translation initiation. Expression levels of eIF3 subunits are elevated or decreased in various cancers, suggesting a role for eIF3 in tumorigenesis. Recent studies have shown that the expression of the eIF3b subunit is elevated in bladder and prostate cancer, and eIF3b silencing inhibited glioblastoma growth and induced cellular apoptosis. In this study, we investigated the role of eIF3b in the survival of osteosarcoma cells. Methods To investigate the effect of eIF3b on cell viability and apoptosis in osteosarcoma cells, we first examined the silencing effect of eIF3b in U2OS cells. Cell viability and apoptosis were examined by the Cell Counting Kit-8 (CCK-8) assay and Western blot, respectively. We also performed gene profiling to identify genes affected by eIF3b silencing. Finally, the effect of eIF3b on cell viability and apoptosis was confirmed in multiple osteosarcoma cell lines. Results eIF3b silencing decreased cell viability and induced apoptosis in U2OS cells, and by using gene profiling we discovered that eIF3b silencing also resulted in the upregulation of tumour necrosis factor receptor superfamily member 21 (TNFRSF21). We found that TNFRSF21 overexpression induced cell death in U2OS cells, and we confirmed that eIF3b silencing completely suppressed cell growth in multiple osteosarcoma cell lines. However, eIF3b silencing failed to suppress cell growth completely in normal fibroblast cells. Conclusion Our data led us to conclude that eIF3b may be required for osteosarcoma cell proliferation by regulating TNFRSF21 expression. Cite this article: Y. J. Choi, Y. S. Lee, H. W. Lee, D. M. Shim, S. W. Seo. Silencing of translation initiation factor eIF3b promotes apoptosis in osteosarcoma cells. Bone Joint Res 2017;6:186–193. DOI: 10.1302/2046-3758.63.BJR-2016-0151.R2.
Collapse
Affiliation(s)
- Y J Choi
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University, 50, Ilwon-dong, Gangnam-gu, 135-710, Seoul, South Korea
| | - Y S Lee
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University, 50, Ilwon-dong, Gangnam-gu, 135-710, Seoul, South Korea
| | - H W Lee
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, 50, Ilwon-dong, Gangnam-gu, 135-710, Seoul, South Korea
| | - D M Shim
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University, 50, Ilwon-dong, Gangnam-gu, 135-710, Seoul, South Korea
| | - S W Seo
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University, 50, Ilwon-dong, Gangnam-gu, 135-710, Seoul, South Korea
| |
Collapse
|
113
|
Choi YJ, Lee JH, Moon SY, Choi JY, Jung SP, Bae JW, Park KH. Abstract P2-04-24: Changes of tumor-infiltrating lymphocytes and programmed death-ligand1 positivity after neoadjuvant chemotherapy in patients with locally advanced breast cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p2-04-24] [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
Background
Recently, the balance in immune system between immune surveillance and tolerance is known to be associated with the prognosis of breast cancer patients. The aim of this study was to investigate changes of tumor-infiltrating lymphocytes (TILs) and programmed death-ligand1 (PD-L1) status after neoadjuvant chemotherapy (NAC) and their impact on recurrence in patients with locally advanced breast cancer.
Methods
Paired samples (before and after NAC) of triple negative or HER2+ breast cancer tissue were obtained from clinical stage II or III patients (n=39) undergoing NAC and subsequent breast resection. The assessment of immunohistochemical (IHC) staining for PD-L1 were performed. Immunostaining of forkhead box P3 (Foxp3) and CD4/CD8 were performed for subtyping of TILs in triple negative breast cancer (TNBC) only. Clinicopathologic data including baseline characteristics, tumor response and recurrence were reviewed.
Results
Proportion of PD-L1 (+) tumor cells in pre-chemotherapy tissue was 20% (5/25) in HER2+ and 28.6% (4/14) in TNBC. It could not predict pathologic complete response. Most post-chemotherapy tissue (21/24) showed same PD-L1 positivity with pre-chemotherapy tissue. The rest showed the decreased PD-L1 positivity after NAC.
In cases of TNBC, the increased number of CD8+ T cells was significantly associated with PD-L1 positivity in pre-chemotherapy tissue. (p=0.001) Foxp3+ T cell proportions decreased significantly (p=0.046) and CD8+/Foxp3+ T-cell ratio increased significantly (p=0.023) after NAC. The patients with increased number of CD8+ T cells after NAC had a tendency to live longer without recurrence compared to patients with decreased CD8+ T cells (62.3 vs 38.1 months, p=0.158).
Conclusion
Our data provides the clinical evidence that PD-L1 positivity are associated with CD8+ T cell proportion and increased CD8+ T cells after NAC might be good prognostic marker. The role of immunologic balance as a prognostic marker for recurrence must be evaluated in future study.
Citation Format: Choi YJ, Lee JH, Moon SY, Choi JY, Jung SP, Bae JW, Park KH. Changes of tumor-infiltrating lymphocytes and programmed death-ligand1 positivity after neoadjuvant chemotherapy in patients with locally advanced breast cancer [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P2-04-24.
Collapse
Affiliation(s)
- YJ Choi
- Korea University Anam Hospital, Seoul, Republic of Korea
| | - JH Lee
- Korea University Anam Hospital, Seoul, Republic of Korea
| | - SY Moon
- Korea University Anam Hospital, Seoul, Republic of Korea
| | - JY Choi
- Korea University Anam Hospital, Seoul, Republic of Korea
| | - SP Jung
- Korea University Anam Hospital, Seoul, Republic of Korea
| | - JW Bae
- Korea University Anam Hospital, Seoul, Republic of Korea
| | - KH Park
- Korea University Anam Hospital, Seoul, Republic of Korea
| |
Collapse
|
114
|
Choi YJ, Lee DH. Underweight as a risk factor for esophageal squamous cellcarcinoma: A nationwide population-based study. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.4_suppl.14] [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: 11/20/2022] Open
Abstract
14 Background: Obesity is a well-known risk factor for the development of esophageal cancer (EC). However, the impact of underweight on esophageal squamous cell carcinoma (ESCC) has not been fully recognized to date. Therefore, we herein sought to determine the risk of EC in subjects with underweight. Methods: We analyzed the clinical data from a total of 264,084 individuals with the age of 40 years or older, who received healthcare checkups arranged by the national insurance program, between 2003 and 2008. Newly diagnosed EC was identified using the claims data during a median follow-up duration of 7.9 years. Results: The mean body mass index (BMI) of patients was 23.80 ± 3.05kg/m2, and 6,784 individuals (2.6%) were classified as being underweight (BMI < 18.5 kg/m2). During the study period, 278 individuals (0.1%) developed EC. It was determined that underweight and obesity—compared with normal weight—were significantly associated with 73% increased risk and 30% decreased risk of EC, respectively. Excess risk of EC in the underweight group was independent of age, gender, smoking, and alcohol consumption. Heavy alcohol use had a synergistically increasing effect for developing EC among those in the underweight group. Conclusions: The mean body mass index (BMI) of patients was 23.80 ± 3.05kg/m2, and 6,784 individuals (2.6%) were classified as being underweight (BMI < 18.5 kg/m2). During the study period, 278 individuals (0.1%) developed EC. It was determined that underweight and obesity—compared with normal weight—were significantly associated with 73% increased risk and 30% decreased risk of EC, respectively. Excess risk of EC in the underweight group was independent of age, gender, smoking, and alcohol consumption. Heavy alcohol use had a synergistically increasing effect for developing EC among those in the underweight group.
Collapse
Affiliation(s)
- Yoon Jin Choi
- Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Dong Ho Lee
- Seoul National University Bundang Hospital, Seongnam, South Korea
| |
Collapse
|
115
|
Park JE, Lee JH, Ryu KH, Park HS, Chung MS, Kim HW, Choi YJ, Baek JH. Improved Diagnostic Accuracy Using Arterial Phase CT for Lateral Cervical Lymph Node Metastasis from Papillary Thyroid Cancer. AJNR Am J Neuroradiol 2017; 38:782-788. [PMID: 28126748 DOI: 10.3174/ajnr.a5054] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 11/05/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND PURPOSE Contrast-enhanced CT protocols for papillary thyroid cancer are yet to be optimized. Our aim was to compare the diagnostic accuracy of arterial phase CT and delayed-phase CT protocols for lateral cervical lymph node metastasis from papillary thyroid carcinoma by using the lymph node tissue attenuation. MATERIALS AND METHODS This retrospective study included 327 lateral cervical lymph nodes (177 metastatic and 150 benign) from 131 patients with papillary thyroid carcinoma (107 initially diagnosed and 24 recurrences). Patients underwent CT by using 1 of 3 protocols: a 70-second (A) or a 35-second (B) delay with 100 mL of iodinated IV contrast or a 25-second delay with 75 mL of IV contrast (C). Two readers independently measured and compared lymph node tissue attenuation between metastatic and benign lymph nodes. An area under the receiver operating characteristic curve analysis was performed to differentiate metastatic and benign lymph nodes after multiple comparison correction for clustered data and was compared across the protocols. RESULTS The difference in mean lymph node tissue attenuation between metastatic and benign lymph nodes was maximum in protocol C (P < .001 for both readers). Protocol C showed the highest diagnostic performance (area under the receiver operating characteristic curve, 0.88-0.92) compared with protocol A (area under the receiver operating characteristic curve, 0.73-0.74, P < .001 for both readers) and B (area under the receiver operating characteristic curve, .63-0.65, P < .01 for both readers). The sensitivity, specificity, positive predictive value, and negative predictive value of lymph node tissue attenuation by using a 99-HU cutoff value were 83%-87%, 93.7%-97.9%, 95.1%-97.3%, and 81.2%-87%. CONCLUSIONS A combination of 25-second delay CT and 75 mL of iodinated IV contrast can improve the diagnostic accuracy for lateral lymph node metastasis from papillary thyroid carcinoma compared with a combination of a 35- or 70-second delay with 100-mL of iodinated IV contrast.
Collapse
Affiliation(s)
- J E Park
- From the Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - J H Lee
- From the Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
| | - K H Ryu
- From the Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - H S Park
- From the Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - M S Chung
- From the Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - H W Kim
- From the Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Y J Choi
- From the Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - J H Baek
- From the Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| |
Collapse
|
116
|
Lee MJ, Khwarg SI, Kim IH, Choi JH, Choi YJ, Kim N, Choung HK. Surgical outcomes of external dacryocystorhinostomy and risk factors for functional failure: a 10-year experience. Eye (Lond) 2017; 31:691-697. [PMID: 28085144 DOI: 10.1038/eye.2016.308] [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: 03/29/2016] [Accepted: 11/27/2016] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To analyze the surgical outcomes of external dacryocystorhinostomy (DCR) and the risk factors associated with functional failure. METHODS We reviewed the medical records of 769 patients who underwent external DCR for primary lacrimal drainage obstruction between 2005 and 2014. Recorded data included intraoperative anatomical findings, postoperative diagnosis, and surgical outcomes. We performed univariate and multivariate analyses to identify risk factors for functional failure. RESULTS Of the 769 cases, primary nasolacrimal duct obstruction (NLDO) was diagnosed in 457 cases; common canalicular obstruction in 228 cases; and canalicular obstruction in 84 cases. Anatomical success was achieved in 98.8% (760/769) and functional success in 81.9% (630/769) of the cases. An analysis of 760 anatomically successful DCRs showed that common canalicular obstruction (OR=1.752, P=0.014) and canalicular obstruction (OR=2.058, P=0.015) were independent risk factors for functional failure. In a subgroup analysis of patients with primary NLDO, patients with a small lacrimal sac had a significantly higher risk of functional failure (OR=2.500, P=0.018). CONCLUSIONS The overall surgical outcomes of external DCR were favorable in this case series. Site of obstruction was an important risk factor for functional failure in cases with primary lacrimal drainage obstruction. A small lacrimal sac was also found to be a risk factor for functional failure in cases with primary NLDO.
Collapse
Affiliation(s)
- M J Lee
- Department of Ophthalmology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - S I Khwarg
- Department of Ophthalmology, Seoul National University Hospital, Seoul, Korea
| | - I H Kim
- SW Bright Eye Clinic, Pocheon, Korea
| | - J H Choi
- Department of Ophthalmology, Korean Armed Forces Capital Hospital, Seongnam, Korea
| | - Y J Choi
- Department of Ophthalmology, Kangdong Sacred Heart Hospital, Hallym University Medical Center, Seoul, Korea
| | - N Kim
- Department of Ophthalmology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - H-K Choung
- Department of Ophthalmology, Seoul Metropolitan Government Seoul National University, Boramae Medical Center, Seoul, Korea
| |
Collapse
|
117
|
Suh CH, Baek JH, Choi YJ, Lee JH. Performance of CT in the Preoperative Diagnosis of Cervical Lymph Node Metastasis in Patients with Papillary Thyroid Cancer: A Systematic Review and Meta-Analysis. AJNR Am J Neuroradiol 2017; 38:154-161. [PMID: 27789450 DOI: 10.3174/ajnr.a4967] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 08/22/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Ultrasound has become widely accepted as the first imaging technique used for the assessment of cervical lymph node metastasis in patients with papillary thyroid cancer. In this systematic review and meta-analysis, we evaluate the performance of CT for the preoperative diagnosis of cervical lymph node metastasis in patients with papillary thyroid cancer compared with ultrasound. MATERIALS AND METHODS Ovid-MEDLINE and EMBASE data bases were searched for studies regarding the use of CT to diagnose cervical lymph node metastasis. The diagnostic performance of CT, ultrasound, and combined CT/ultrasound was assessed by using level-by-level and patient-based analyses. We also performed meta-analyses on the basis of the central and lateral neck levels. RESULTS Nine eligible studies, including a total sample size of 1691 patients, were included. CT showed a summary sensitivity of 62% (95% CI, 52%-70%) and specificity of 87% (95% CI, 80%-92%) for diagnosing cervical lymph node metastasis when using level-by-level analysis. There was a positive correlation between the sensitivity and the false-positive rate (correlation coefficient, 0.807) because of the threshold effect. The summary sensitivity of combined CT/ultrasound (69%; 95% CI, 61%-77%) was significantly higher than ultrasound (51%; 95% CI, 42%-60%), though the summary specificity did not differ. CONCLUSIONS The diagnostic performances of CT and ultrasound are similar, though CT and ultrasound combined are superior to ultrasound only. CT may be used as a complementary diagnostic method in addition to ultrasound for diagnosing cervical lymph node metastasis in patients with papillary thyroid cancer.
Collapse
Affiliation(s)
- C H Suh
- From the Department of Radiology and Research Institute of Radiology (C.H.S., J.H.B., Y.J.C., J.H.L.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
- Department of Radiology (C.H.S.), Namwon Medical Center, Namwon-Si, Republic of Korea
| | - J H Baek
- From the Department of Radiology and Research Institute of Radiology (C.H.S., J.H.B., Y.J.C., J.H.L.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Y J Choi
- From the Department of Radiology and Research Institute of Radiology (C.H.S., J.H.B., Y.J.C., J.H.L.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - J H Lee
- From the Department of Radiology and Research Institute of Radiology (C.H.S., J.H.B., Y.J.C., J.H.L.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| |
Collapse
|
118
|
Affiliation(s)
- Yoon Jin Choi
- Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| |
Collapse
|
119
|
Choi YJ, Kim N, Lee HS, Park SM, Park JH, Yoon H, Shin CM, Park YS, Kim JW, Lee DH. Expression of Leucine-rich Repeat-containing G-protein Coupled Receptor 5 and CD44: Potential Implications for Gastric Cancer Stem Cell Marker. J Cancer Prev 2016; 21:279-287. [PMID: 28053963 PMCID: PMC5207613 DOI: 10.15430/jcp.2016.21.4.279] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 10/24/2016] [Revised: 11/14/2016] [Accepted: 11/15/2016] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND The human leucine-rich repeat-containing G-protein coupled receptor (LGR) 5 and CD44 are one of the candidates for the marker of gastric cancer stem cells. We compared the expressions of two genes among control, dysplasia and cancer groups. METHODS We compared the mRNA expression of LGR5, CD44 and CD44v8-10 and immunohistochemistry (IHC) of LGR5 and CD44 in gastric antral mucosa of 45 controls, 36 patients with gastric dysplasia, and 39 patients with early gastric cancer. Additionally, IHC of LGR5 in gastric body mucosa was analyzed. Normal mucosa adjacent to dysplastic or cancer lesions was used for the quantitative real-time-PCR and IHC. RESULTS Immunoreactivity of LGR5 in base of antral mucosa was higher in non-cancerous tissues of cancer than those of control (P = 0.006), whereas the expression of LGR5 mRNA was not different among the three groups. Immunostaining of LGR5 was much stronger in the antrum than in the body of stomach (P < 0.001). Although there was no difference in antral immunointensity of LGR5 according to the severity of intestinal metaplasia, stronger immunostaining was found in the body with an aggravation of intestinal metaplasia (P trend < 0.001). The expression of CD44v8-10 mRNA was higher in cancer patients than control subjects and patients with dysplasia (P = 0.018 and 0.009) while the expression of CD44 mRNA was higher in the control groups than the others. CONCLUSIONS IHC of LGR5 in crypt base and CD44 may be used for gastric CSC markers. LGR5 expression may be associated with the developing of corporal intestinal metaplasia. The expression of CD44v8-10 mRNA would be more suitable for gastric cancer stem cell marker than CD44 or LGR5 mRNA.
Collapse
Affiliation(s)
- Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea; Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seon Mee Park
- Department of Internal Medicine, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Korea
| | - Ji Hyun Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Young Soo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jin-Wook Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| |
Collapse
|
120
|
Kim HJ, Kim N, Yoon H, Choi YJ, Lee JY, Kwon YH, Yoon K, Jo HJ, Shin CM, Park YS, Park DJ, Kim HH, Lee HS, Lee DH. Comparison between Resectable Helicobacter pylori-Negative and -Positive Gastric Cancers. Gut Liver 2016; 10:212-9. [PMID: 26087794 PMCID: PMC4780450 DOI: 10.5009/gnl14416] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND/AIMS Controversy exists regarding the characteristics of Helicobacter pylori infection-negative gastric cancer (HPIN-GC). The aim of this study was to evaluate clinicopathologic features of HPIN-GC compared to H. pylori infection-positive gastric cancer (HPIP-GC) using a comprehensive analysis that included genetic and environmental factors. METHODS H. pylori infection status of 705 resectable gastric cancer patients was determined by the rapid urease test, testing for anti-H. pylori antibodies, histologic analysis and culture of gastric cancer tissue samples, and history of H. pylori eradication. HPIN-GC was defined as gastric cancer that was negative for H. pylori infection based on all five methods and that had no evidence of atrophy in histology or serology. RESULTS The prevalence of HPIN-GC was 4% (28/705). No significant differences with respect to age, sex, smoking, drinking, family history of gastric cancer or obesity were observed between the two groups. HPIN-GC tumors were marginally more likely to involve the cardia (14.3% for HPIN-GC vs 5.3% for HPIP-GC, p=0.068). The Lauren classification, histology, and TNM stage did not differ according to H. pylori infection status. Microsatellite instability was not different between the two groups, but p53 overexpression in HPIN-GC was marginally higher than in HPIP-GC (56.0% for HPIN-GC vs 37.0% for HPIP-GC, p=0.055). CONCLUSIONS The prevalence of HPIN-GC was extremely low, and its clinicopathologic characteristics were similar to HPIP-GC.
Collapse
Affiliation(s)
- Hee Jin Kim
- Department of Internal Medicine, Myongji Hospital, Goyang, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ju Yup Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yong Hwan Kwon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Kichul Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hyun Jin Jo
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Young Soo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Do Joong Park
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hyung Ho Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| |
Collapse
|
121
|
Abstract
BACKGROUND Evidence is lacking regarding how Helicobacter pylori infection status, eradication history, and ABO blood type affect the development of gastric cancer (GC) given the multifactorial and distinctive etiology according to cancer location (noncardia vs cardia) and histologic type (intestinal vs diffuse-type). We evaluated the effect of H. pylori infection status incorporated with H. pylori eradication history and ABO genotype on GC development according to cancer location and histologic type. METHODS A case-control study of 997 patients with noncardia GC (NCGC) and 1147 control subjects was performed using risk analyses with 14 factors including H. pylori infection with eradication history and ABO genotype. As final analyses, multivariable logistic regression models were fitted. Additionally, H. pylori infection status with eradication history was tested for its association with age, atrophic gastritis (AG), and intestinal metaplasia (IM). RESULTS The ABO genotype with the B allele was associated with a significantly lower risk of NCGC of both histologic types. The reduction in risk for NCGC by adding the B allele was more prominent in diffuse-type than that in the intestinal-type. H. pylori infection with eradication history was associated with a significantly lower risk of NCGC of both histologic types, compared with those without eradication history (odds ratio (OR), 0.22; 95% confidence interval (CI), 0.14-0.34) approaching that of uninfected subjects. Past infection status without an eradication history was associated with older age, AG, and IM. CONCLUSIONS H. pylori eradication and the B allele decreased the risks of the intestinal and diffuse-types of NCGC. H. pylori eradication revealed a strong association against developing NCGC. Therefore, it should be considered as a primary measure in NCGC prevention.
Collapse
Affiliation(s)
- Sooyeon Oh
- Department of Internal Medicine and Liver Research Institute, Seoul National University, College of Medicine, Seoul, Korea
| | - Nayoung Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University, College of Medicine, Seoul, Korea.,Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jin-Won Kwon
- College of Pharmacy and Research, Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University, College of Medicine, Seoul, Korea.,Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hyun Chae Jung
- Department of Internal Medicine and Liver Research Institute, Seoul National University, College of Medicine, Seoul, Korea
| |
Collapse
|
122
|
Park HJ, Lee SY, Choi YJ, Hong HP, Park SJ, Park JH, Kim E. 3D isotropic T2-weighted fast spin echo (VISTA) versus 2D T2-weighted fast spin echo in evaluation of the calcaneofibular ligament in the oblique coronal plane. Clin Radiol 2016; 72:176.e1-176.e7. [PMID: 27836104 DOI: 10.1016/j.crad.2016.09.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 09/02/2016] [Accepted: 09/15/2016] [Indexed: 11/30/2022]
Abstract
AIM To investigate whether the image quality of three-dimensional (3D) volume isotropic fast spin echo acquisition (VISTA) magnetic resonance imaging (MRI) of the calcaneofibular ligament (CFL) view is comparable to that of 2D fast spin echo T2-weighted images (2D T2 FSE) for the evaluation of the CFL, and whether 3D VISTA can replace 2D T2 FSE for the evaluation of CFL injuries. MATERIALS AND METHODS This retrospective study included 76 patients who underwent ankle MRI with CFL views of both 2D T2 FSE MRI and 3D VISTA. The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of both techniques were measured. The anatomical identification score and diagnostic performances were evaluated by two readers independently. The diagnostic performances of 3D VISTA and 2D T2 FSE were analysed by sensitivity, specificity, and accuracy for diagnosing CFL injury with reference standards of surgically or clinically confirmed diagnoses. Surgical correlation was performed in 29% of the patients, and clinical examination was used in those who did not have surgery (71%). RESULTS The SNRs and CNRs of 3D VISTA were significantly higher than those of 2D T2 FSE. The anatomical identification scores on 3D VISTA were inferior to those on 2D T2 FSE, and the differences were statistically significant (p<0.05). There were no significant differences in diagnostic performance between the two sequences when diagnoses were classified as normal or abnormal. CONCLUSION Although the image quality of 3D VISTA MRI of the CFL view is not equal to that of 2D T2 FSE for the anatomical evaluation of CFL, 3D VISTA has a diagnostic performance comparable to that of 2D T2 FSE for the diagnosis of CFL injuries.
Collapse
Affiliation(s)
- H J Park
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S Y Lee
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - Y J Choi
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H P Hong
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S J Park
- Department of Orthopaedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J H Park
- Department of Orthopaedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - E Kim
- Department of Orthopaedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| |
Collapse
|
123
|
Abstract
Gastric cancer is associated with high morbidity and mortality rates worldwide. Identifying individuals at high risk is important for surveillance and prevention of gastric cancer. Having first-degree relatives diagnosed with gastric cancer is a strong and consistent risk factor for gastric cancer, but the pathogenic mechanisms behind this familial aggregation are unclear. Against this background, we reviewed the risk factors for gastric cancer in those with a first-degree relative with gastric cancer, and the possible causes for familial clustering of gastric cancer including bacterial factors, inherited genetic susceptibility, environmental factors or a combination thereof. Among individuals with a family history, current or past Helicobacter pylori infection, having two or more first-degree affected relatives or female gender was associated with an increased risk of developing gastric cancer. To date, no specific single nucleotide polymorphism has been shown to be associated with familial clustering of gastric cancer. H. pylori eradication is the most important strategy for preventing gastric cancer in first-degree relatives of gastric cancer patients, particularly those in their 20s and 30s. Early H. pylori eradication could prevent the progression to intestinal metaplasia and reduce the synergistic effect on gastric carcinogenesis in individuals with both H. pylori infection and a family history. Endoscopic surveillance is also expected to benefit individuals with a family history. Further large-scale, prospective studies are warranted to evaluate the cost-effectiveness and optimal time point for endoscopy in this population. Moreover, genome-wide association studies that incorporate environmental and dietary factors on a 'big data' basis will increase our understanding of the pathogenesis of gastric cancer.
Collapse
Affiliation(s)
- Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
- Correspondence to Nayoung Kim, M.D. Department of Internal Medicine, Seoul National University Bundang Hospital, 82 Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea Tel: + 82-31-787-7008 Fax: + 82-31-787-4051 E-mail:
| |
Collapse
|
124
|
Lee JY, Kim N, Kim YS, Nam RH, Ham MH, Lee HS, Jo W, Shim Y, Choi YJ, Yoon H, Shin CM, Lee DH. Repeated Water Avoidance Stress Alters Mucosal Mast Cell Counts, Interleukin-1β Levels with Sex Differences in the Distal Colon of Wistar Rats. J Neurogastroenterol Motil 2016; 22:694-704. [PMID: 27466288 PMCID: PMC5056580 DOI: 10.5056/jnm16007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 05/23/2016] [Accepted: 06/14/2016] [Indexed: 12/13/2022] Open
Abstract
Background/Aims This study was aimed at evaluating differences in the effects of repeated water avoidance stress (rWAS) on colonic movement, mucosal mast cell counts, cytokine levels, and visceromotor response (VMR) to colorectal distension (CRD) in rats of both sexes. Methods Wistar rats were divided into stress and no-stress groups. Rats in the stress group were exposed to rWAS (1 hr/day) for 10 days. Mucosal mast cells were immunohistochemically stained with anti-mast cell tryptase antibody and counted. The colonic mucosal cytokine levels were measured with enzyme-linked immunosorbent assay. The VMR to CRD (visceral analgesia) was assessed by using a barostat and noninvasive manometry. Results The mean number of fecal pellets in the rWAS group increased significantly as compared with that in the no-stress group in both sexes. After adjustment for body weight, the female rats had a significantly higher pellet output than the male rats. The mucosal mast cell count of the female rWAS group was higher than that of the male rWAS group (13.0 ± 0.9 vs 8.8 ± 0.6; P < 0.001). The colonic mucosal interleukin-1β level was also higher only in the female rats of the rWAS group than in those of the no-stress group. On days 10 and 11, a decrease in VMR to CRD was observed at 40 and 60 mmHg in both sexes of the rWAS group, without a sex-based difference. Conclusions The colonic response to stress appeared to be more sensitive in the female rats than in the male rats. However, stress-induced visceral analgesia had no sex-related difference and the underlying mechanism needs to be further evaluated.
Collapse
Affiliation(s)
- Ju Yup Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea.,Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Yong Sung Kim
- Department of Gastroenterology and Digestive Disease Research Institute, Wonkwang University School of Medicine, Iksan, Jeollabuk-do, Korea
| | - Ryoung Hee Nam
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Min Hee Ham
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Wonjun Jo
- Department of BioNano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, Gyeonggi-do, Korea
| | - Youngkwang Shim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| |
Collapse
|
125
|
Hong MJ, Baek JH, Kim DY, Ha EJ, Choi WJ, Choi YJ, Lee JH. Spinal Accessory Nerve: Ultrasound Findings and Correlations with Neck Lymph Node Levels. Ultraschall Med 2016; 37:487-491. [PMID: 25520295 DOI: 10.1055/s-0034-1385673] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Purpose: To evaluate the ultrasound characteristics of the spinal accessory nerve (SAN) and correlate nerve location with neck lymph node level. Materials and Methods: 50 participants with 100 SANs were enrolled in this study. The SAN was traced from the trapezius muscle to the upper neck and was identified by a hypoechoic linear structure without color Doppler flow. The ultrasound characteristics of the SAN, such as visibility, diameter, relationship with adjacent structures, and its correlation with lymph node levels, were evaluated. Results: The SAN was identified in 96 %-100 % of segments. The mean diameter of the SAN was 0.54 ± 0.09 mm. The SANs was located between the trapezius and levator scapulae muscles and 90.8 % were traced into the trapezius muscle. In the upper neck, the SAN passed deep into the sternocleidomastoid (SCM) muscle in 38 % of cases and between the two heads of the SCM muscle in 62 % of cases. The SAN was found at neck lymph node levels II, III, IV, and V, but not I or VI. Conclusion: Continuous ultrasound monitoring of the SAN and its correlation with lymph node levels is possible in most patients. Our current findings may assist in the future prevention of SAN injury during ultrasound-guided procedures.
Collapse
|
126
|
Lee JY, Kim N, Choi YJ, Nam RH, Choi YJ, Lee S, Choi D, Lee HS, Kim JW, Lee DH. Effect of N-Methyl-N-Nitrosourea on Helicobacter-induced Gastric Carcinogenesis in C57BL/6 Mice. J Cancer Prev 2016; 21:182-186. [PMID: 27722144 PMCID: PMC5051592 DOI: 10.15430/jcp.2016.21.3.182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 09/07/2016] [Revised: 09/11/2016] [Accepted: 09/13/2016] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND The aim of this study was to investigate the effect of N-methyl-N-nitrosourea (MNU) treatment followed by chronic Helicobacter pylori SS1 and H. felis colonization on the stomachs of C57BL/6 mice. The role of MNU and Helicobacter species in gastric carcinogenesis was also elucidated. METHODS A total of 69 C57BL/6 mice at 4 weeks of age were divided into 6 groups according to MNU treatment and H. pylori SS1 or H. felis infection. The mice were sacrificed at 21 and 50 weeks. The degree of inflammation was determined by histopathology. The levels of gastric mucosal myeloperoxidase, TNF-α, and interleukin-1β (IL-1β) were measured by ELISA. RESULTS In the H. felis groups with or without MNU, the incidence of gastric tumors was 21.1% and 35.0% at 21 and 50 weeks, respectively. No gastric tumors were observed in all control mice. At 50 weeks, 37.5% of gastric adenoma cases were observed in the H. felis alone and MNU + H. felis groups. Furthermore, 12.5% of gastric adenocarcinoma cases were observed in the MNU alone and MNU + H. felis groups. The gastric mucosal IL-1β level was significantly higher in the MNU + H. felis group at 21 weeks and H. felis group at 50 weeks, respectively, than that for control mice (P < 0.05). However, the effect of MNU on H. pylori SS1-induced gastric carcinogenesis was low compared to that on H. felis. CONCLUSIONS Administration of MNU before H. felis infection provokes severe inflammation through IL-1β, and eventually induces gastric cancer. However, the role of MNU in H. pylori SS1-induced gastric carcinogenesis model is minor.
Collapse
Affiliation(s)
- Ju Yup Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea; Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Jeong Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ryoung Hee Nam
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seonmin Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Daeun Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jin-Wook Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| |
Collapse
|
127
|
Kim JJ, Kim N, Choi YJ, Kim JS, Jung HC. Increased TRPV1 and PAR2 mRNA expression levels are associated only with the esophageal reflux symptoms, but not with the extraesophageal reflux symptoms. Medicine (Baltimore) 2016; 95:e4387. [PMID: 27512850 PMCID: PMC4985305 DOI: 10.1097/md.0000000000004387] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 12/31/2022] Open
Abstract
Transient receptor potential vanilloid-1 (TRPV1) receptor and proteinase-activated receptor 2 (PAR2) have been implicated in the mechanism of acid-induced inflammation in gastroesophageal reflux disease (GERD). We aimed to evaluate TRPV1 and PAR2 mRNA expression levels in the GERD patients and their relationship with endoscopic findings and reflux symptoms.Sixteen healthy controls, 45 patients with erosive reflux disease (ERD), and 14 nonerosive reflux disease (NERD) patients received endoscopy and completed questionnaires. Quantitative real-time polymerase chain reactions (qPCR) of TRPV1, glial cell line-derived neurotrophic factor (GDNF), nerve growth factor (NGF), PAR2, and interleukin (IL)-8 were performed in the distal esophagus specimen.The levels of TRPV1, GDNF, NGF, PAR2, and IL-8 mRNA expression were highest in the ERD group followed by NERD and control groups and the differences between control and ERD groups were statistically significant. Within the ERD group, patients with grade B in Los Angeles (LA) classification showed significantly higher levels of TRPV1, GDNF, and NGF mRNA expression than those with grade A. Presence of reflux symptoms was associated with significant higher levels of TRPV1, PAR2, and IL-8. Notably not extraesophageal but esophageal reflux symptoms were significantly associated with them.Upregulation of TRPV1 and PAR2 pathways might play a role in the development of distal esophageal inflammation and reflux symptoms. And extraesophageal reflux symptoms might not be associated with these processes.
Collapse
Affiliation(s)
- Jin Joo Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul
- Department of Internal Medicient, Changwon Gyeongsang National University Hospital, Changwon, Gyeongnam
| | - Nayoung Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, Republic of Korea
| | - Yoon Jin Choi
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, Republic of Korea
| | - Joo Sung Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul
| | - Hyun Chae Jung
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul
| |
Collapse
|
128
|
Cho S, Choi YJ, Kang JS. Improvement of Periorbital Wrinkles Treated with an Invasive Non-Insulated Microneedle Pulsed Electric Signal Device. ACTA ACUST UNITED AC 2016. [DOI: 10.25289/ml.2016.5.1.34] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Suhyun Cho
- Kangskin Dermatology Clinic, Seoul, Korea
| | | | | |
Collapse
|
129
|
Abstract
The etiological basis of functional dyspepsia (FD) is incompletely understood. The aim of this study was to evaluate the involvement of nociceptor-related genes and Helicobacter pylori (HP) in the pathogenesis of FD. The expression of nociceptor-related genes was measured in gastric cell lines that were co-cultured with HP. FD patients (n = 117) and controls (n = 55) were enrolled from a tertiary hospital gastroenterology clinic. Expression of the genes nerve growth factor (NGF), glial cell line-derived neurotrophic factor (GDNF), and transient receptor potential cation channel subfamily V member 1 (TRPV1) in the gastric mucosa were detected by reverse transcription polymerase chain reaction (RT-PCR), and immunohistochemical staining of TRPV1 was analyzed. These measurements were repeated after 1 year. TRPV1, GDNF, and NGF expression was elevated in gastric cell lines co-cultured with HP. TRPV1 immunostaining was stronger in HP-positive than HP-negative subjects. The FD group showed higher expression levels of TRPV1, GDNF, and NGF and increased TRPV1 immunostaining compared with those of the control group (all P < 0.05). Among 61 subjects who were followed up at 1 year, controls with successful HP eradication and patients whose symptoms had improved both showed significant reductions in the expression of TRPV1 and NGF (all P < 0.05) compared with controls without HP eradication and patients whose symptoms had not improved, respectively. The expression of NGF, GDNF, and TRPV1 may be associated with the pathogenesis of FD. Since HP infection may induce the increased expression of these genes, anti-HP therapy could be beneficial for HP-positive patients with FD.
Collapse
Affiliation(s)
- Yoon Jin Choi
- From the Department of Internal Medicine and Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do (YJC, NK, DHL); and Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul (NK, JK, DHL, JHP, HCJ), South Korea
| | | | | | | | | | | |
Collapse
|
130
|
Choi YJ, Kim N, Jang W, Seo B, Oh S, Shin CM, Lee DH, Jung HC. Familial Clustering of Gastric Cancer: A Retrospective Study Based on the Number of First-Degree Relatives. Medicine (Baltimore) 2016; 95:e3606. [PMID: 27196462 PMCID: PMC4902404 DOI: 10.1097/md.0000000000003606] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
This comprehensive cross-sectional study aimed to identify factors contributing to familial aggregation of gastric cancer (GC). A total of 1058 GC patients and 1268 controls were analyzed separately according to the presence or absence of a first-degree relative of GC (GC-relative). Logistic regression analysis adjusted for age, gender, residence during childhood, smoking, alcohol intake, monthly income, spicy food ingestion, Helicobacter pylori status and host cytokine polymorphisms was performed. Cytotoxin-associated gene A (cagA) positivity was a distinctive risk factor for GC in the family history (FH)-positive group (odds ratio [OR], 2.39; 95% confidence interval [CI], 1.42-4.00), while current/ex-smoker, moderate to strong spicy food ingestion, and non-B blood types were more closely associated with GC in the FH-negative group. Among the FH-positive group, alcohol consumption showed a synergistic carcinogenic effect in the at least 2 GC-relatives group compared to the 1 GC-relative group (1.71 vs. 9.58, P for interaction = 0.026), and this was dose-dependent. In the subjects with ≥2 GC-relatives, TGFB1-509T/T was a risk factor for GC (OR 23.74; 95% CI 1.37-410.91), as were rural residency in childhood, alcohol consumption, spicy food ingestion, and cagA positivity. These results suggest that subjects with FH may be a heterogeneous group in terms of gastric cancer susceptibility. Especially, subjects with ≥2 GC-relatives should undergo risk stratification including TGFB1-509T/T and alcohol consumption.
Collapse
Affiliation(s)
- Yoon Jin Choi
- From the Department of Internal Medicine (YJC, NK, CMS and DHL), Seoul National University Bundang Hospital, Seongnam; Department of Internal Medicine and Liver Research Institute (NK, SO, DHL and HCJ), Seoul National University College of Medicine; and Department of Statistics (WJ, BS), College of Science, Seoul National University, Seoul, South Korea
| | | | | | | | | | | | | | | |
Collapse
|
131
|
Koo HJ, Lee JH, Kim GY, Choi YJ, Baek JH, Choi SH, Nam SY, Kim SY, Suh DC. Ethanol and/or radiofrequency ablation to treat venolymphatic malformations that manifest as a bulging mass in the head and neck. Clin Radiol 2016; 71:1070.e1-1070.e7. [PMID: 27076254 DOI: 10.1016/j.crad.2016.03.012] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 02/13/2016] [Accepted: 03/14/2016] [Indexed: 12/18/2022]
Abstract
AIM To evaluate the efficacy of ultrasound (US)-guided ethanol ablation (EA) and radiofrequency ablation (RFA) for treating venolymphatic malformations (VLM) of the head and neck. MATERIALS AND METHODS US-guided EA and/or RFA were performed on 17 patients with VLM of the head and neck. Computed tomography (CT) or magnetic resonance imaging (MRI) was used to locate the cranial nerves and salivary gland ducts that were close to targets, and these were avoided during the procedures. Treatment response was assessed using volume reduction and cosmetic grading scoring. RESULTS Nine VLMs were located close to the functional structures: Stensen's duct (n=3), cranial nerve branch (n=3), or both (n=3). All patients demonstrated >50% volume reduction, except one patient with a microcystic lymphatic malformation that was abutting the facial nerve. Median cosmetic grading scores improved from 4 to 1 (p<0.001). CONCLUSION US-guided EA and/or RFA are effective and safe treatment methods in patients with VLMs of the head and neck. Treatment selection of EA and/or RFA could be performed based on the composition of VLMs as assessed at CT and MRI.
Collapse
Affiliation(s)
- H J Koo
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - J H Lee
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
| | - G Y Kim
- University of Missouri-Kansas City, School of Medicine, Kansas City, MO, USA
| | - Y J Choi
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - J H Baek
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - S-H Choi
- Department of Otorhinolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - S Y Nam
- Department of Otorhinolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - S Y Kim
- Department of Otorhinolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - D C Suh
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| |
Collapse
|
132
|
Lee JY, Kim N, Choi YJ, Nam RH, Lee S, Ham MH, Suh JH, Choi YJ, Lee HS, Lee DH. Anti-inflammatory and Anti-tumorigenic Effects of Açai Berry in Helicobacter felis-infected mice. J Cancer Prev 2016; 21:48-54. [PMID: 27051649 PMCID: PMC4819666 DOI: 10.15430/jcp.2016.21.1.48] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 02/29/2016] [Revised: 03/05/2016] [Accepted: 03/07/2016] [Indexed: 12/20/2022] Open
Abstract
Background: The aim of this study was to evaluate the anti-inflammatory and anti-tumorigenic effect of açai berry after chronic Helicobacter felis colonization in the stomachs of C57BL/6 mice. Methods: A total of 57 four-week-old female C57BL/6 mice (18 control mice and 39 experimental mice) were used. The mice were administered orogastrically with vehicle only or vehicle containing H. felis, 5 times every other day. After inoculation of H. felis, mice were fed either a standard or an açai-containing diet and then sacrificed at 4, 24, and 52 weeks. The infection status and degree of inflammation were determined by culture and histopathology. The level of gastric mucosal myeloperoxidase (MPO), TNF-α, and interleukin-1β (IL-1β) were measured by ELISA. Results: At 24 weeks after inoculation, mucosal atrophy and mucous metaplasia appeared in all infected mice. At 52 weeks after inoculation, dysplastic change was noted in 10%, 25%, and 50% of mice in the H. felis-control, H. felis-açai 5%, and H. felis-açai 10% groups, respectively. The neutrophil, monocyte, atrophy, and metaplasia grades of infected mice showed no significant difference among the H. felis-infected groups. H. felis-infected mice fed with açai berry showed no significant difference compared with H. felis-infected control mice in gastric mucosal MPO, TNF-α, and IL-1β levels. Conclusions: H. felis that colonized the stomachs of C57BL/6 mice provoked inflammation, and induced mucosal atrophy, metaplasia, and dysplasia. However, açai berry did not effectively prohibit the gastric carcinogenesis which was induced by chronic H. felis infection.
Collapse
Affiliation(s)
- Ju Yup Lee
- Departments of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Nayoung Kim
- Departments of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Yoon Jeong Choi
- Departments of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Ryoung Hee Nam
- Departments of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Seonmin Lee
- Departments of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Min Hee Ham
- Departments of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Ji Hyung Suh
- Departments of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Yoon Jin Choi
- Departments of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Hye Seung Lee
- Pathology, Seoul National University Bundang Hospital, Seongnam, Keimyung University School of Medicine, Daegu, Korea
| | - Dong Ho Lee
- Departments of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| |
Collapse
|
133
|
Kwon YH, Kim N, Lee JY, Choi YJ, Yoon K, Nam RH, Suh JH, Lee JW, Lee DH. Comparison of the efficacy of culture-based tailored therapy for Helicobacter pylori eradication with that of the traditional second-line rescue therapy in Korean patients: a prospective single tertiary center study. Scand J Gastroenterol 2016; 51:270-6. [PMID: 26452405 DOI: 10.3109/00365521.2015.1095352] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 02/04/2023]
Abstract
OBJECTIVE The effectiveness of Helicobacter pylori therapies has declined with an increase in antibiotic resistance. To overcome this problem, the efficacy of tailored H. pylori eradication therapy based on antimicrobial susceptibility testing was compared with that of empirical second-line rescue regimens. MATERIAL AND METHODS Patients who had persistent H. pylori infection after the first eradication were recommended to undergo culture for determining the minimal inhibitory concentration (MIC) via gastroscopy, which increased the cost by 300%. Fourteen-day esomeprazole, tripotassium dicitrate bismuthate, metronidazole and tetracycline (EBMT) therapy or esomeprazole, moxifloxacin and amoxicillin (MEA) therapy was performed according to the results of antibiotic susceptibility testing. In case of refusal to undergo culture, the participants were treated with either 14-day empirical EBMT or MEA regimen for second eradication after explaining the complexity, side effects and costs associated with each regimen. This trial was registered at ClinicalTrials.Gov (NCT 02349685). RESULTS In the 219 patients included, the intention to treat (ITT) and per protocol (PP) eradication rates was 75.3% and 79.8% in the 14-day EBMT group (n = 89), 70.8% and 72.4% in the 14-day MEA group (n = 89) and 87.8% and 100.0% in the 14-day tailored therapy group (n = 41), respectively. Based on the PP analysis, the 14-day tailored therapy group showed a significantly higher eradication rate than the 14-day EBMT or MEA group (both p ≤ 0.001). CONCLUSIONS Tailored therapy based on H. pylori culture and MIC test could be an option as a second-line eradication regimen in the presence of high level of antimicrobial resistance.
Collapse
Affiliation(s)
- Yong Hwan Kwon
- a Department of Internal Medicine , Seoul National University Bundang Hospital , Seongnam , South Korea ;,b Department of Internal Medicine , Kyungpook National University Hospital , Daegu , South Korea
| | - Nayoung Kim
- a Department of Internal Medicine , Seoul National University Bundang Hospital , Seongnam , South Korea ;,c Department of Internal Medicine and Liver Research Institute , Seoul National University College of Medicine , Seoul , South Korea
| | - Ju Yup Lee
- a Department of Internal Medicine , Seoul National University Bundang Hospital , Seongnam , South Korea
| | - Yoon Jin Choi
- a Department of Internal Medicine , Seoul National University Bundang Hospital , Seongnam , South Korea
| | - Kichul Yoon
- a Department of Internal Medicine , Seoul National University Bundang Hospital , Seongnam , South Korea
| | - Ryung Hee Nam
- a Department of Internal Medicine , Seoul National University Bundang Hospital , Seongnam , South Korea
| | - Ji Hyung Suh
- a Department of Internal Medicine , Seoul National University Bundang Hospital , Seongnam , South Korea
| | - Jung Won Lee
- c Department of Internal Medicine and Liver Research Institute , Seoul National University College of Medicine , Seoul , South Korea
| | - Dong Ho Lee
- a Department of Internal Medicine , Seoul National University Bundang Hospital , Seongnam , South Korea ;,c Department of Internal Medicine and Liver Research Institute , Seoul National University College of Medicine , Seoul , South Korea
| |
Collapse
|
134
|
Kim YS, Choi YJ, Lee SW, Kwon OR, Suh DS, Heo DB, Koh YG. Assessment of clinical and MRI outcomes after mesenchymal stem cell implantation in patients with knee osteoarthritis: a prospective study. Osteoarthritis Cartilage 2016; 24:237-45. [PMID: 26318655 DOI: 10.1016/j.joca.2015.08.009] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [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] [Received: 02/27/2015] [Revised: 07/14/2015] [Accepted: 08/18/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Cartilage regenerative procedures using the cell-based tissue engineering approach involving mesenchymal stem cells (MSCs) have been receiving increased interest because of their potential for altering the progression of osteoarthritis (OA) by repairing cartilage lesions. The aim of this study was to investigate the clinical and magnetic resonance imaging (MRI) outcomes of MSC implantation in OA knees and to determine the association between clinical and MRI outcomes. DESIGN Twenty patients (24 knees) who underwent arthroscopic MSC implantation for cartilage lesions in their OA knees were evaluated at 2 years after surgery. Clinical outcomes were evaluated according to the International Knee Documentation Committee (IKDC) score and the Tegner activity scale, and cartilage repair was assessed according to the MRI Osteoarthritis Knee Score (MOAKS) and Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) score. RESULTS The clinical outcomes significantly improved (P < 0.001 for both). The cartilage lesion grades (as described in MOAKS [grades for size of cartilage-loss area and percentage of full-thickness cartilage loss]) at follow-up MRI were significantly better than the preoperative values (P < 0.001 for both). The clinical outcomes at final follow-up were significantly correlated with the MOAKS and MOCART score at follow-up MRI (P < 0.05 for all). CONCLUSIONS Considering the encouraging clinical and MRI outcomes obtained and the significant correlations noted between the clinical and MRI outcomes, MSC implantation seems to be useful for repairing cartilage lesions in OA knees. However, a larger sample size and long-term studies are needed to confirm our findings.
Collapse
Affiliation(s)
- Y S Kim
- Center for Stem Cell & Arthritis Research, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
| | - Y J Choi
- Center for Stem Cell & Arthritis Research, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
| | - S W Lee
- Department of Radiology, Yonsei Sarang Hospital, Seoul, Republic of Korea.
| | - O R Kwon
- Joint Reconstruction Center, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
| | - D S Suh
- Joint Reconstruction Center, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
| | - D B Heo
- Center for Stem Cell & Arthritis Research, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
| | - Y G Koh
- Center for Stem Cell & Arthritis Research, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea; Joint Reconstruction Center, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
| |
Collapse
|
135
|
Oh S, Kim N, Oh DH, Bang SM, Choi YJ, Lee JY, Lee KW, Yoon HI, Yang HC, Paik JH, Lee DH, Jung HC. Concurrent gastric and pulmonary mucosa-associated lymphoid tissue lymphomas with pre-existing intrinsic chronic inflammation: a case report and a review of the literature. Gut Liver 2016; 9:424-9. [PMID: 25918263 PMCID: PMC4413978 DOI: 10.5009/gnl14072] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Herein, we report a rare case of concurrent gastric and pulmonary mucosa-associated lymphoid tissue (MALT) lymphomas. A 65-year-old man who had been diagnosed with Helicobacter pylori-positive gastric MALT lymphoma received eradication therapy and achieved complete remission. During follow-up, he developed de novo pulmonary MALT lymphoma as a sequela of pulmonary tuberculosis, accompanied by recurrent gastric MALT lymphoma. Polymerase chain reaction (PCR) products of the CDR3 region of the immunoglobulin heavy chain gene showed an overall polyclonal pattern with bands at 400 base pairs (bp) and 200 bp predominant in the pulmonary tissue, as well as two distinctive bands in the gastric tissue at 400 bp and 200 bp. This case suggests that multiorgan lymphomas are more likely to be independent from each other when they are far apart, involve different organ systems, and have independent precipitating factors.
Collapse
Affiliation(s)
- Sooyeon Oh
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul,
Korea
| | - Nayoung Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul,
Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam,
Korea
- Correspondence to: Nayoung Kim, Department of Internal Medicine, Seoul National University Bundang Hospital, 82 Gumi-ro 173beon-gil, Bundang-gu, Seongnam 463-707, Korea, Tel: +82-31-787-7008, Fax: +82-31-787-4051, E-mail:
| | - Dong Hyun Oh
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam,
Korea
| | - Soo-Mee Bang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam,
Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam,
Korea
| | - Ju Yub Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam,
Korea
| | - Kyung Won Lee
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam,
Korea
| | - Ho Il Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam,
Korea
| | - Hee Chul Yang
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital, Seongnam,
Korea
| | - Jin Ho Paik
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam,
Korea
| | - Dong Ho Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul,
Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam,
Korea
| | - Hyun Chae Jung
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul,
Korea
| |
Collapse
|
136
|
Lee Y, Bok JD, Lee HJ, Lee HG, Kim D, Lee I, Kang SK, Choi YJ. Body Temperature Monitoring Using Subcutaneously Implanted Thermo-loggers from Holstein Steers. Asian-Australas J Anim Sci 2016; 29:299-306. [PMID: 26732455 PMCID: PMC4698711 DOI: 10.5713/ajas.15.0353] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 05/06/2015] [Accepted: 06/11/2015] [Indexed: 11/27/2022]
Abstract
Body temperature (BT) monitoring in cattle could be used to early detect fever from infectious disease or physiological events. Various ways to measure BT have been applied at different locations on cattle including rectum, reticulum, milk, subcutis and ear canal. In other to evaluate the temperature stability and reliability of subcutaneous temperature (ST) in highly fluctuating field conditions for continuous BT monitoring, long term ST profiles were collected and analyzed from cattle in autumn/winter and summer season by surgically implanted thermo-logger devices. Purposes of this study were to assess ST in the field condition as a reference BT and to determine any location effect of implantation on ST profile. In results, ST profile in cattle showed a clear circadian rhythm with daily lowest at 05:00 to 07:00 AM and highest around midnight and rather stable temperature readings (mean±standard deviation [SD], 37.1°C to 37.36°C±0.91°C to 1.02°C). STs are 1.39°C to 1.65°C lower than the rectal temperature and sometimes showed an irregular temperature drop below the normal physiologic one: 19.4% or 36.4% of 54,192 readings were below 36.5°C or 37°C, respectively. Thus, for BT monitoring purposes in a fever-alarming-system, a correction algorithm is necessary to remove the influences of ambient temperature and animal resting behavior especially in winter time. One way to do this is simply discard outlier readings below 36.5°C or 37°C resulting in a much improved mean±SD of 37.6°C±0.64°C or 37.8°C±0.55°C, respectively. For location the upper scapula region seems the most reliable and convenient site for implantation of a thermo-sensor tag in terms of relatively low influence by ambient temperature and easy insertion compared to lower scapula or lateral neck.
Collapse
Affiliation(s)
- Y Lee
- Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - J D Bok
- Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - H J Lee
- Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - H G Lee
- Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea
| | - D Kim
- Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea; College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - I Lee
- Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea; College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - S K Kang
- Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Y J Choi
- Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| |
Collapse
|
137
|
Abstract
OBJECTIVE We aimed to investigate the association between metabolic syndrome (MS) and hearing impairment (HI) using nationally representative data from Korean adults. DESIGN, SETTING AND PARTICIPANTS A total of 16,799 subjects (≥19 years old; 7,170 men and 9,629 women) who underwent pure tone audiometry testing were included in the analysis. Data were obtained from the fifth Korea National Health and Nutrition Examination Survey (2010-2012). Subjects were divided into two groups according to the presence of MS. RESULTS Among the subjects with MS, 47% had HI. Logistic regression analysis revealed that MS was not an independent risk factor for HI, although increased fasting plasma glucose (OR 1·4, 95% CI: 1·1-1·8) was independently associated with HI. In addition, older age, male sex, very low body mass index (≤17·5 kg/m2), lower education level, smoking history, and occupational noise exposure were independently associated with HI. For low-frequency HI, independent risk factors included older age, lower educational level, lower economic status, and very low BMI (≤17·5 kg/m2). For high-frequency HI, independent risk factors included older age, male sex, lower educational level, lower economic status, increased blood pressure, lower high-density lipoprotein cholesterol, and smoking history. CONCLUSIONS MS itself was not an independent risk factor for HI, and, among the individual metabolic components, only increased fasting plasma glucose was independently associated with HI.
Collapse
Affiliation(s)
- H Y Lee
- Ho Yun Lee, MD, PhD, Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Eulji University, Dunsan-seoro 95, Daejeon 302-799, Korea, Tel: 82-42-611-3133, Fax: 82-42-611-3136, E-mail:
| | | | | | | | | | | | | |
Collapse
|
138
|
Park YH, Kim N, Shim YK, Choi YJ, Nam RH, Choi YJ, Ham MH, Suh JH, Lee SM, Lee CM, Yoon H, Lee HS, Lee DH. Adequate Dextran Sodium Sulfate-induced Colitis Model in Mice and Effective Outcome Measurement Method. J Cancer Prev 2015; 20:260-7. [PMID: 26734588 PMCID: PMC4699753 DOI: 10.15430/jcp.2015.20.4.260] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [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: 11/23/2015] [Revised: 12/11/2015] [Accepted: 12/12/2015] [Indexed: 12/21/2022] Open
Abstract
Background: Dextran sodium sulfate (DSS)-induced colitis mouse model is used for research of inflammatory bowel disease. The aim of this study was to establish the adequate conditions for DSS mice model, and to find useful tool to measure inflammation. Methods: The 2.5% DSS was administered to six male C57BL/6 mice and 4% DSS to eight mice at 5 or 9 weeks of age. Each group was consisted of 6 mice with control group in which vehicle was administered instead of DSS. The mice were sacrificed on the 7th day after DSS or vehicle administration. Body weight, diarrhea, and hematochezia were recorded daily. Disease activity index (DAI) score which was composed of body weight change, diarrhea, and hematochezia was measured every day. Colon length was measured after sacrifice and colon mucosal level of interleukin 1 beta (IL-1β) was measured by ELISA assay. Histological score was compared between ascending and descending colon in the DSS group. Results: Colon length of five- and nine-week DSS group was significantly shorter than each control group but there was no statistical significance depending on DSS concentration or age. DAI score of 4% DSS group in nine-week was significantly higher than that five-week (P = 0.012) but there was no difference between 2.5% and 4% DSS group. The level of IL-1β in DSS mice was much higher than control group (P < 0.01), but there was no difference among several DSS groups. The histological score was higher in the descending colon than in the ascending colon but there was no statistical difference between each pair of DSS groups. Conclusions: The 4% DSS mice in nine-week was adequate for DSS-induced colitis model. DAI score was useful tool and descending colon was more appropriate site for histological evaluation of colitis than ascending colon.
Collapse
Affiliation(s)
- Yo Han Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea; Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Young Kwang Shim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Ryoung Hee Nam
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Yoon Jeong Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Min Hee Ham
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Ji Hyung Suh
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Sun Min Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Chang Min Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Seoul, Korea
| |
Collapse
|
139
|
Kim JH, Kim TH, Park HJ, Choi YJ, Kang JH, Song KH, Koo TS, Seo KW. The pharmacokinetics of the β2-adrenoceptor agonist, tulobuterol, in Beagle dogs following transdermal and intravenous administration. Vet J 2015; 208:90-2. [PMID: 26639828 DOI: 10.1016/j.tvjl.2015.10.012] [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] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 10/01/2015] [Accepted: 10/04/2015] [Indexed: 11/25/2022]
Abstract
Tulobuterol is a β2-adrenergic agonist that was the first bronchodilator approved as a transdermal patch for humans. Previous studies have examined the pharmacokinetics of tulobuterol in humans but not in the veterinary species. In this study, the pharmacokinetics of tulobuterol was examined in healthy Beagle dogs after transdermal and intravenous administration. The Cmax was 2.09 ng/mL at 16.0 h for a 0.2 mg/kg patch and 4.85 ng/mL at 13.6 h for a 0.4 mg/kg patch. The effective blood level in humans is 1-3 ng/mL, a concentration achieved using the 0.2 mg/kg patch in dogs. In conclusion, application of a 0.2 mg/kg tulobuterol patch to healthy dogs led to an apparently effective blood concentration for 24 h.
Collapse
Affiliation(s)
- J H Kim
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, 99 Daehakro, Daejeon, South Korea
| | - T H Kim
- Graduate School of New Drug Discovery and Development, Chungnam National University, 99 Daehakro, Daejeon, South Korea
| | - H J Park
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, 99 Daehakro, Daejeon, South Korea
| | - Y J Choi
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, 99 Daehakro, Daejeon, South Korea
| | - J H Kang
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju 362-763, South Korea
| | - K H Song
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, 99 Daehakro, Daejeon, South Korea
| | - T S Koo
- Graduate School of New Drug Discovery and Development, Chungnam National University, 99 Daehakro, Daejeon, South Korea.
| | - K W Seo
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, 99 Daehakro, Daejeon, South Korea.
| |
Collapse
|
140
|
Choi YJ, Kim KS, Suh GJ, Kwon WY, Yoo KM, Kim JS. Diagnostic performance of ct angiography for gastrointestinal haemorrhage according to the clinical severity. Intensive Care Med Exp 2015. [PMCID: PMC4797821 DOI: 10.1186/2197-425x-3-s1-a605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
|
141
|
Yoo KM, Kim KS, Suh GJ, Kwon WY, Kim JS, Park MJ, Choi YJ, Kim K. Six-hour central venous oxygen saturation has no prognostic value in patients with septic shock. Intensive Care Med Exp 2015. [PMCID: PMC4797090 DOI: 10.1186/2197-425x-3-s1-a220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
142
|
Chang H, Kim N, Park JH, Nam RH, Choi YJ, Park SM, Choi YJ, Yoon H, Shin CM, Lee DH. Helicobacter pylori Might Induce TGF-β1-Mediated EMT by Means of cagE. Helicobacter 2015; 20:438-48. [PMID: 25735663 DOI: 10.1111/hel.12220] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 02/06/2023]
Abstract
BACKGROUND Epithelial-mesenchymal transition (EMT), in which polarized epithelial cells have mesenchymal cell phenotypes, is thought to be a key process of invasion and metastasis of cancer. Transforming growth factor beta-1 (TGF-β1) is known to be carcinogenic and Helicobacter pylori is a predominant carcinogen of gastric cancer. Our study aimed to determine whether TGF-β1 or H. pylori infection enhances EMT process and cytotoxin-associated gene E (CagE) is associated with EMT. MATERIALS AND METHODS Human gastric cancer cell AGS and MKN45 were treated with recombinant TGF-β1 or H. pylori including cagE-negative (ΔcagE) mutant. Besides the assessment of EMT-related markers expression levels by means of RT-qPCR, Western blot, and immunofluorescence assay, the induction of in vitro EMT on gastric cancer cells (AGS and MKN cell lines) was confirmed by wound-healing assay and invasion assay. RESULTS When gastric cancer cells were treated with TGF-β1 or various strains of cagE-positive H. pylori, EMT-related marker altered significantly. However, the ΔcagE mutant did not. Wound-healing assay and invasion assay showed enhanced migration ability of the cells treated with cagE-positive H. pylori but not in ΔcagE mutant. CONCLUSIONS EMT induction in gastric cancer cells by TGF-β1 was confirmed. Only infection with cagE-positive H. pylori upregulated the TGF-β1-mediated EMT pathway and consequently promotes EMT. Therefore, H. pylori might induce TGF-β1-mediated EMT associated with the cagE.
Collapse
Affiliation(s)
- Hyun Chang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, South Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, South Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Ji Hyun Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Ryoung Hee Nam
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, South Korea
| | - Yoon Jeong Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, South Korea
| | - Seon Mee Park
- Department of Internal Medicine, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, South Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, South Korea
| | - Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, South Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, South Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, South Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| |
Collapse
|
143
|
Jang HJ, Kim TH, Kwon SW, Kim JY, Kim JS, Lee HJ, Park JS, Choi RK, Choi YJ, Shim WH. Left ventricular end diastolic pressure for detection of intracoronary ergonovine-induced myocardial ischemia. Herz 2015; 41:320-5. [PMID: 26545603 DOI: 10.1007/s00059-015-4368-2] [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] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 09/07/2015] [Accepted: 09/27/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND Recent consensus on variant angina defines significant spasm as total or subtotal occlusion of a coronary artery. However, the clinical significance of "less-than-subtotal" spasm needs to be reappraised, especially if the coronary spasm is combined with chest pain. Therefore, we evaluated the feasibility of left ventricular end diastolic pressure (LVEDP) as a tool to detect myocardial ischemia during ergonovine provocation testing. METHODS After achieving two access sites, 29 patients underwent successful LVEDP monitoring using 5-Fr pigtail catheters during ergonovine provocation tests. Patients were divided into two groups based on the occurrence of anginal symptoms. RESULTS Of the 29 patients, 16 (55 %) patients had anginal symptoms. LVEDP was significantly increased in the symptomatic group compared with the nonsymptomatic group (∆LVEDP 5.6 ± 4.2 vs. 1.2 ± 2.0 mmHg, p = 0.002). However, of the 16 patients with anginal symptoms, positive provocation test results were confirmed in only six patients (38 %) as per the traditional standard (> 90 % inducible spasm of the epicardial coronary artery). CONCLUSION Compared with the traditional standard, LVEDP may have advantages in terms of elucidating anginal symptoms in patients suspected of having coronary vasospasm when performing ergonovine provocation tests.
Collapse
Affiliation(s)
- H-J Jang
- Division of Cardiology, Sejong General Hospital, Bucheon-si, Gyeonggi-do Korea, Republic of Korea
| | - T-H Kim
- Division of Cardiology, Sejong General Hospital, Bucheon-si, Gyeonggi-do Korea, Republic of Korea.
| | - S W Kwon
- Division of Cardiology, Inha University Hospital, Incheon, Republic of Korea
| | - J-Y Kim
- Division of Neurology, Inje University Seoul Paik Hospital, Seoul, Republic of Korea
| | - J S Kim
- Division of Cardiology, Sejong General Hospital, Bucheon-si, Gyeonggi-do Korea, Republic of Korea
| | - H J Lee
- Division of Cardiology, Sejong General Hospital, Bucheon-si, Gyeonggi-do Korea, Republic of Korea
| | - J S Park
- Division of Cardiology, Sejong General Hospital, Bucheon-si, Gyeonggi-do Korea, Republic of Korea
| | - R K Choi
- Division of Cardiology, Sejong General Hospital, Bucheon-si, Gyeonggi-do Korea, Republic of Korea
| | - Y J Choi
- Division of Cardiology, Sejong General Hospital, Bucheon-si, Gyeonggi-do Korea, Republic of Korea
| | - W-H Shim
- Division of Cardiology, Sejong General Hospital, Bucheon-si, Gyeonggi-do Korea, Republic of Korea
| |
Collapse
|
144
|
Yoo EJ, Kang SY, Shim EL, Yoon TS, Kang CJ, Choi YJ. Influence of Incorporated Pt-Fe2O3 Core-Shell Nanoparticles on the Resistive Switching Characteristics of ZnO Thin Film. J Nanosci Nanotechnol 2015; 15:8622-8626. [PMID: 26726563 DOI: 10.1166/jnn.2015.11487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The resistance-switching characteristics of metal oxides have attracted great interest for the non-volatile memory applications such as resistive random access memory. A basic resistive random access memory device has a metal/insulator/metal structure, and its memory effect is achieved by applying voltage to change the resistance of the insulating layer. One of the promising candidates for explaining the resistance-switching mechanism is the formation and rupture of nanoscale conductive filaments. However, this model has an issue that needs to be addressed: the wide distribution of switching voltage due to randomly formed filaments. Therefore, some researchers have reported a decrease in switching voltage distribution and an increase in switching stability by incorporating nanoparticles into the insulating layer. In this study, we investigated influence of incorporated Pt-Fe2O3 core-shell nanoparticles on the resistive switching characteristics of ZnO thin films. Devices were fabricated on SiO2 wafers. A 100-nm-thick Cr layer was used as the bottom electrode. A 50-nm-thick ZnO layer was deposited using the sputtering method, and Pt-Fe2O3 nanoparticles were deposited on it by the dip coating method. A 50-nm-thick ZnO layer was then deposited again. A top Cr electrode (size: 100 μm x 100 μm) was deposited using a shadow mask and sputtering system. All the devices showed bipolar resistance-switching behavior that is observed in Cr/ZnO/Cr structures. However, the on/off voltage was dramatically lowered by incorporating nanoparticles into the insulating layer when compared with that of the devices without nanoparticles. In addition, the switching stability of the devices was improved upon the incorporation of nanoparticles. On the basis of these results, we can conclude that Pt-Fe2O3 nanoparticles may be used to enhance the resistance switching properties of ZnO thin films by incorporating them into the films.
Collapse
|
145
|
Kim MK, Moon JY, Choi HY, Oh SH, Lee N, Choi YJ. Investigation of the magnetic properties in double perovskite R2CoMnO6 single crystals (R = rare earth: La to Lu). J Phys Condens Matter 2015; 27:426002. [PMID: 26442994 DOI: 10.1088/0953-8984/27/42/426002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We have successfully synthesized the series of the double-perovskite R2CoMnO6 (R = rare earth: La to Lu) single crystals and have investigated their magnetic properties. The ferromagnetic order of Co(2+)/Mn(4+) spins emerges mainly along the c axis. Upon decreasing the size of rare earth ion, the magnetic transition temperature decreases linearly from 204 K for La2CoMnO6 to 48 K for Lu2CoMnO6, along with the enhancement of monoclinic distortion. The temperature and magnetic-field dependences of magnetization reveal the various magnetic characteristics such as the metamagnetic transition in R = Eu, the isotropic nature of rare earth moment in R = Gd, and the reversal of magnetic anisotropy in R = Tb and Dy. Our results offer comprehensive information for understanding the roles of mixed-valent magnetic ions and rare earth magnetic moments on the magnetic properties.
Collapse
Affiliation(s)
- M K Kim
- Department of Physics and IPAP, Yonsei University, Seoul 120-749, Korea
| | | | | | | | | | | |
Collapse
|
146
|
Pofali PA, Singh B, Dandekar P, Jain RD, Maharjan S, Choi YJ, Arote RB, Cho CS. Drug-conjugated polymers as gene carriers for synergistic therapeutic effect. J Biomed Mater Res B Appl Biomater 2015; 104:698-711. [PMID: 26471335 DOI: 10.1002/jbm.b.33545] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 09/15/2015] [Accepted: 09/27/2015] [Indexed: 01/12/2023]
Abstract
The ability to safely and effectively transfer gene into cells is the fundamental goal of gene delivery. In spite of the best efforts of researchers around the world, gene therapy has limited success. This may be because of several limitations of delivering gene which is one of the greatest technical challenges in the modern medicine. To address these issues, many efforts have been made to bind drugs and genes together by polymers for co-delivery to achieve synergistic effect. Usually, binding interaction of drugs with polymers is either physical or chemical. In case of drug-polymer physical interaction, the efficiency of drugs generally decreases because of separation of drugs from polymers in vivo whenever it comes in contact with charged biofluid/s or cells. While chemical interaction of drug-polymer overcomes the aforementioned obstacle, several problems such as steric hindrance, solubility, and biodegradability hinder it to develop as gene carrier. Considering these benefits and pitfalls, the objective of this review is to discuss the possible extent of drug-conjugated polymers as safe and efficient gene delivery carriers for achieving synergistic effect to combat various genetic disorders.
Collapse
Affiliation(s)
- P A Pofali
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai, 400-019, India.,Department of Molecular Genetics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - B Singh
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea
| | - P Dandekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, 400-019, India
| | - R D Jain
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai, 400-019, India
| | - S Maharjan
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea
| | - Y J Choi
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea
| | - R B Arote
- Department of Molecular Genetics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - C S Cho
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea
| |
Collapse
|
147
|
Hong ZS, Kim EJ, Jin YC, Lee JS, Choi YJ, Lee HG. Effects of Supplementing Brown Seaweed By-products in the Diet of Holstein Cows during Transition on Ruminal Fermentation, Growth Performance and Endocrine Responses. Asian-Australas J Anim Sci 2015; 28:1296-302. [PMID: 26323519 PMCID: PMC4554870 DOI: 10.5713/ajas.15.0235] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 04/23/2015] [Accepted: 05/26/2015] [Indexed: 11/27/2022]
Abstract
This study was conducted to examine the effects of supplementing brown seaweed by-products (BSB) in the diet of ruminants on ruminal fermentation characteristics, growth performance, endocrine response, and milk production in Holstein cows. In Experiment 1, the effects of different levels (0%, 2%, and 4% of basal diet as Control, 2% BSB, 4% BSB, respectively) of BSB were evaluated at 3, 6, 9, 12, and 24 h in vitro batch culture rumen fermentation. The pH tended to be higher for the higher level of BSB supplementation, with the pH at 12 h being significantly higher (p<0.05) than that of the control. The concentration of ammonia nitrogen was lower at 3, 9, 12, and 24 h incubation (p<0.05) compared with the control, and tended to be low at other incubation times. Volatile fatty acid concentration appeared to be minimally changed while lower values were observed with 4% BSB treatment at 24 h (p<0.05). In Experiment 2, effects of levels (0%, 2%, and 4%) of BSB on growth performance, endocrine responses and milk production were studied with Holstein dairy cows during transition. Dry matter intake, daily gain and feed efficiency were not affected by BSB supplementation. The concentration of plasma estrogen for the control, 2% BSB and 4% BSB after three months of pregnancy were 55.7, 94.1, and 72.3 pg/mL, respectively (p = 0.08). Although the differences of progesterone levels between BSB treatments and the control were minimal, the concentration in 4% BSB treatment increased to 157.7% compared with the initial level of the study. Triiodothyronine and thyroxine levels were also higher after both three months and eight months of pregnancy than the initial level at the beginning of the study. In addition, BSB treatments during one month after delivery did not affect daily milk yield and composition. In conclusion, the present results indicate that supplementation of BSB did not compromise ruminal fermentation, and animal performance at lower levels and hence may have potential to be used as a safe feed ingredient in dairy cows.
Collapse
Affiliation(s)
- Z S Hong
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - E J Kim
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - Y C Jin
- Department of Animal Science and Technology, Konkuk University, Seoul 140-701, Korea
| | - J S Lee
- Department of Animal Science and Technology, Konkuk University, Seoul 140-701, Korea
| | - Y J Choi
- Laboratory of Animal Cell Biotechnology, Department of Agricultural Biotechnology, Seoul National University, Seoul 151-742, Korea
| | - H G Lee
- Department of Animal Science and Technology, Konkuk University, Seoul 140-701, Korea
| |
Collapse
|
148
|
Wang Y, Firestein R, Ryner L, Darbonne W, Guan Y, Lu S, Choi YJ, Xiao Y, Polakis P, Suttmann B, Desai R, Fu L, Saad O, Poon KA, Denker M, Leveque V, Sumiyoshi T, Lackner M, Shames D, Humke E, Mayslar D. Abstract POSTER-THER-1441: Biomarker evaluation of phase 1 clinical trials of antibody-drug conjugates (ADCs) in platinum resistant ovarian cancer. Clin Cancer Res 2015. [DOI: 10.1158/1557-3265.ovcasymp14-poster-ther-1441] [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
Purpose: DNIB0600A and DMUC5754A are two ADCs that conjugate the anti-mitotic agent MMAE with anti-NaPi2b and anti-MUC16 monoclonal antibodies, respectively. Both ADCs have shown promising anti-tumor activity in patients with platinum resistant ovarian cancer. Here we report biomarker analysis in patient samples collected from these phase 1 studies. The main goal of this study is to evaluate tissue-based biomarkers that can predict response or resistance to these ADCs. We also explored the utility of serum protein biomarkers and circulating tumor cells (CTCs) as potential surrogates for monitoring treatment response to ADCs and disease progression.
Methods: Biomarker analysis was done on 55 ovarian cancer patients treated with clinically relevant doses (1.8-3.2mg/kg) from DNIB0600A and DMUC5754A Phase 1 studies. Protein and mRNA expression levels of NaPi2b and MUC16 targets were assessed in archival tumor specimen by immunohistochemistry (IHC) and qRT-PCR respectively. Serum collected at baseline and post-treatment were analyzed by CA125 and HE4 ELISA assays as well as by the OLINK 96-plex PEA protein biomarker panel. CTCs at baseline and post-treatment were analyzed using the Veridex CellSearch System.
Results: Target expression in tumor tissues for both NaPi2b and MUC16 measured by IHC and qRT-PCR are concordant. High NaPi2b or MUC16 expression (IHC 2+/3+) was identified in all responders by RECIST criteria (11 from DNIB0600A and 5 from DMUC5754A) for respective target, while no patient from either study with IHC 0 showed RECIST response. In patients treated with DNIB0600A, longitudinal changes in serum CA125 level correlated with RECIST response. Additionally, CTC was detected in 60% of patients at baseline in the DNIB0600A trial, and decreased CTC counts was observed after 1-2 cycles of treatment for two-third of patients. In patients treated with DMUC5754A, circulating CA125 (i.e. extra-cellular domain of MUC16 shed in circulation) is cleared after initial dosing; therefore other ovarian cancer biomarkers including HE4 were assessed. Baseline serum HE4 level correlates well with the tumor burden at pre-treatment in DMUC5754A trial, and showed excellent correlation with RECIST response post-treatment.
Conclusions: Target expression in archival tumor tissues is predictive to clinical response to ADCs. CTC enumeration as well as serum HE4 could be used as potential surrogate biomarkers for monitoring treatment response in ovarian cancer. Further validation of these findings is required.
Citation Format: Yulei Wang, Ron Firestein, Lisa Ryner, Walter Darbonne, Yinghui Guan, Shan Lu, YJ Choi, Yuanyuan Xiao, Paul Polakis, Becky Suttmann, Rupal Desai, Ling Fu, Ola Saad, Kirsten Achilles Poon, Mitch Denker, Vincent Leveque, Teiko Sumiyoshi, Mark Lackner, David Shames, Eric Humke, Daniel Mayslar. Biomarker evaluation of phase 1 clinical trials of antibody-drug conjugates (ADCs) in platinum resistant ovarian cancer [abstract]. In: Proceedings of the 10th Biennial Ovarian Cancer Research Symposium; Sep 8-9, 2014; Seattle, WA. Philadelphia (PA): AACR; Clin Cancer Res 2015;21(16 Suppl):Abstract nr POSTER-THER-1441.
Collapse
Affiliation(s)
- Yulei Wang
- Genentech Inc, South San Francisco, CA 94080
| | | | - Lisa Ryner
- Genentech Inc, South San Francisco, CA 94080
| | | | | | - Shan Lu
- Genentech Inc, South San Francisco, CA 94080
| | - YJ Choi
- Genentech Inc, South San Francisco, CA 94080
| | | | | | | | - Rupal Desai
- Genentech Inc, South San Francisco, CA 94080
| | - Ling Fu
- Genentech Inc, South San Francisco, CA 94080
| | - Ola Saad
- Genentech Inc, South San Francisco, CA 94080
| | | | | | | | | | | | | | - Eric Humke
- Genentech Inc, South San Francisco, CA 94080
| | | |
Collapse
|
149
|
Choi YJ, Kim N, Shin A, Lee HS, Nam RH, Chang H, Shin CM, Park YS, Lee DH, Park JH, Jung HC. Influence of TGFB1 C-509T polymorphism on gastric cancer risk associated with TGF-β1 expression in the gastric mucosa. Gastric Cancer 2015; 18:526-37. [PMID: 25118995 DOI: 10.1007/s10120-014-0412-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 07/22/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND Transforming growth factor-β1 (TGF-β1) has dual roles inhibiting and promoting carcinogenesis. Although many researchers have conducted association studies between TGFB1 C-509T polymorphism and the risk of developing gastric cancer, the results are not uniform. METHODS We genotyped 1028 gastric cancer patients and 958 controls by the polymerase chain reaction-restriction fragment length polymorphism method. Immunohistochemistry was performed to assess the expression of TGF-β1 in the cancer and noncancerous tissues of 120 gastric cancer patients. mRNA expression was also measured in noncancerous gastric mucosa by qRT-PCR in the 282 subjects. RESULTS The CT genotype in the TGFB1 C-509T polymorphism was associated with an increased risk of gastric cancer development (adjusted OR 1.35, 95 % CI 1.07-1.71, P = 0.013), especially for intestinal-type cancer (adjusted OR 1.43, 95 % CI 1.08-1.90, P = 0.014). More frequent TGF-β1 expression was found in the center of cancer tissue in the TGFB1-509T carrier group than in the others (90.5 % vs. 72.2 %, P = 0.010). T-carriers also presented higher expression level of gastric TGF-β1 mRNA than non T-carriers (median 1.29 vs. 0.80, P = 0.004) when they were infected by H. pylori. Cancer patients showed elevated gastric TGFB1gene expression compared to the control group (median 1.22 vs. 0.89, P = 0.009). CONCLUSIONS The carcinogenic effect of TGF-β1 might be associated with increased gastric TGF-β1 expression in subjects with the T allele of TGFB1-509.
Collapse
Affiliation(s)
- Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, 173-82, Gumi-ro, Bundang-gu, Seongnam, Gyeonggi-do, 463-707, South Korea
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
150
|
Kwon YH, Kim N, Lee JY, Choi YJ, Yoon K, Hwang JJ, Lee HJ, Lee A, Jeong YS, Oh S, Yoon H, Shin CM, Park YS, Lee DH. The Diagnostic Validity of Citric Acid-Free, High Dose (13)C-Urea Breath Test After Helicobacter pylori Eradication in Korea. Helicobacter 2015; 20:159-68. [PMID: 25640474 DOI: 10.1111/hel.12189] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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: 12/12/2022]
Abstract
BACKGROUND The (13)C-urea breath test ((13)C-UBT) is a noninvasive method for diagnosing Helicobacter pylori (H. pylori) infection. The aims of this study were to evaluate the diagnostic validity of the (13)C-UBT cutoff value and to identify influencing clinical factors responsible for aberrant results. METHODS (13)C-UBT (UBiTkit; Otsuka Pharmaceutical, cutoff value: 2.5‰) results in the range 2.0‰ to 10.0‰ after H. pylori eradication therapy were compared with the results of endoscopic biopsy results of the antrum and body. Factors considered to affect test results adversely were analyzed. RESULTS Among patients with a positive (13)C-UBT result (2.5‰ to 10.0‰, n = 223) or a negative (13)C-UBT result (2.0‰ to < 2.5‰, n = 66) after H. pylori eradication, 73 patients (34.0%) were false positive, and one (1.5%) was false negative as determined by endoscopic biopsy. The sensitivity, specificity, false-positive rate, and false-negative rate for a cutoff value of 2.5‰ were 99.3%, 47.1%, 52.9%, and 0.7%, respectively, and positive and negative predictive values of the (13)C-UBT were 67.3% and 98.5%, respectively. Multivariate analysis showed that a history of two or more previous H. pylori eradication therapies (OR = 2.455, 95%CI = 1.299-4.641) and moderate to severe gastric intestinal metaplasia (OR = 3.359, 95%CI = 1.572-7.178) were associated with a false-positive (13)C-UBT result. CONCLUSION The (13)C-UBT cutoff value currently used has poor specificity for confirming H. pylori status after eradication, and this lack of specificity is exacerbated in patients that have undergone multiple prior eradication therapies and in patients with moderate to severe gastric intestinal metaplasia. In addition, the citric-free (13)C-UBT would increase a false-positive (13)C-UBT result.
Collapse
Affiliation(s)
- Yong Hwan Kwon
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Nayoung Kim
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea.,Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Ju Yup Lee
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Yoon Jin Choi
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Kichul Yoon
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Jae Jin Hwang
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Hyun Joo Lee
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - AeRa Lee
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Yeon Sang Jeong
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Sooyeon Oh
- Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Hyuk Yoon
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Cheol Min Shin
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Young Soo Park
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Dong Ho Lee
- Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea.,Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| |
Collapse
|